5578 lines
311 KiB
JavaScript
5578 lines
311 KiB
JavaScript
/*!
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* OverlayScrollbars
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* https://github.com/KingSora/OverlayScrollbars
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*
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* Version: 1.13.0
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*
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* Copyright KingSora | Rene Haas.
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* https://github.com/KingSora
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*
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* Released under the MIT license.
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* Date: 02.08.2020
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*/
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(function (global, factory) {
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if (typeof define === 'function' && define.amd)
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define(['jquery'], function (framework) { return factory(global, global.document, undefined, framework); });
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else if (typeof module === 'object' && typeof module.exports === 'object')
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module.exports = factory(global, global.document, undefined, require('jquery'));
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else
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factory(global, global.document, undefined, global.jQuery);
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}(typeof window !== 'undefined' ? window : this,
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function (window, document, undefined, framework) {
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'use strict';
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var PLUGINNAME = 'OverlayScrollbars';
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var TYPES = {
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o: 'object',
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f: 'function',
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a: 'array',
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s: 'string',
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b: 'boolean',
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n: 'number',
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u: 'undefined',
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z: 'null'
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//d : 'date',
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//e : 'error',
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//r : 'regexp',
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//y : 'symbol'
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};
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var LEXICON = {
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c: 'class',
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s: 'style',
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i: 'id',
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l: 'length',
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p: 'prototype',
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ti: 'tabindex',
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oH: 'offsetHeight',
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cH: 'clientHeight',
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sH: 'scrollHeight',
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oW: 'offsetWidth',
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cW: 'clientWidth',
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sW: 'scrollWidth',
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hOP: 'hasOwnProperty',
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bCR: 'getBoundingClientRect'
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};
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var VENDORS = (function () {
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//https://developer.mozilla.org/en-US/docs/Glossary/Vendor_Prefix
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var jsCache = {};
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var cssCache = {};
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var cssPrefixes = ['-webkit-', '-moz-', '-o-', '-ms-'];
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var jsPrefixes = ['WebKit', 'Moz', 'O', 'MS'];
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function firstLetterToUpper(str) {
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return str.charAt(0).toUpperCase() + str.slice(1);
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}
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return {
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_cssPrefixes: cssPrefixes,
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_jsPrefixes: jsPrefixes,
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_cssProperty: function (name) {
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var result = cssCache[name];
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if (cssCache[LEXICON.hOP](name))
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return result;
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var uppercasedName = firstLetterToUpper(name);
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var elmStyle = document.createElement('div')[LEXICON.s];
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var resultPossibilities;
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var i = 0;
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var v;
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var currVendorWithoutDashes;
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for (; i < cssPrefixes.length; i++) {
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currVendorWithoutDashes = cssPrefixes[i].replace(/-/g, '');
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resultPossibilities = [
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name, //transition
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cssPrefixes[i] + name, //-webkit-transition
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currVendorWithoutDashes + uppercasedName, //webkitTransition
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firstLetterToUpper(currVendorWithoutDashes) + uppercasedName //WebkitTransition
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];
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for (v = 0; v < resultPossibilities[LEXICON.l]; v++) {
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if (elmStyle[resultPossibilities[v]] !== undefined) {
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result = resultPossibilities[v];
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break;
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}
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}
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}
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cssCache[name] = result;
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return result;
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},
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_cssPropertyValue: function (property, values, suffix) {
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var name = property + ' ' + values;
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var result = cssCache[name];
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if (cssCache[LEXICON.hOP](name))
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return result;
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var dummyStyle = document.createElement('div')[LEXICON.s];
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var possbleValues = values.split(' ');
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var preparedSuffix = suffix || '';
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var i = 0;
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var v = -1;
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var prop;
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for (; i < possbleValues[LEXICON.l]; i++) {
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for (; v < VENDORS._cssPrefixes[LEXICON.l]; v++) {
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prop = v < 0 ? possbleValues[i] : VENDORS._cssPrefixes[v] + possbleValues[i];
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dummyStyle.cssText = property + ':' + prop + preparedSuffix;
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if (dummyStyle[LEXICON.l]) {
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result = prop;
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break;
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}
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}
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}
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cssCache[name] = result;
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return result;
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},
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_jsAPI: function (name, isInterface, fallback) {
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var i = 0;
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var result = jsCache[name];
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if (!jsCache[LEXICON.hOP](name)) {
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result = window[name];
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for (; i < jsPrefixes[LEXICON.l]; i++)
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result = result || window[(isInterface ? jsPrefixes[i] : jsPrefixes[i].toLowerCase()) + firstLetterToUpper(name)];
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jsCache[name] = result;
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}
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return result || fallback;
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}
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}
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})();
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var COMPATIBILITY = (function () {
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function windowSize(x) {
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return x ? window.innerWidth || document.documentElement[LEXICON.cW] || document.body[LEXICON.cW] : window.innerHeight || document.documentElement[LEXICON.cH] || document.body[LEXICON.cH];
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}
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function bind(func, thisObj) {
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if (typeof func != TYPES.f) {
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throw "Can't bind function!";
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// closest thing possible to the ECMAScript 5
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// internal IsCallable function
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//throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
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}
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var proto = LEXICON.p;
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var aArgs = Array[proto].slice.call(arguments, 2);
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var fNOP = function () { };
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var fBound = function () { return func.apply(this instanceof fNOP ? this : thisObj, aArgs.concat(Array[proto].slice.call(arguments))); };
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if (func[proto])
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fNOP[proto] = func[proto]; // Function.prototype doesn't have a prototype property
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fBound[proto] = new fNOP();
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return fBound;
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}
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return {
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/**
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* Gets the current window width.
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* @returns {Number|number} The current window width in pixel.
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*/
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wW: bind(windowSize, 0, true),
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/**
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* Gets the current window height.
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* @returns {Number|number} The current window height in pixel.
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*/
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wH: bind(windowSize, 0),
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/**
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* Gets the MutationObserver Object or undefined if not supported.
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* @returns {MutationObserver|*|undefined} The MutationsObserver Object or undefined.
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*/
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mO: bind(VENDORS._jsAPI, 0, 'MutationObserver', true),
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/**
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* Gets the ResizeObserver Object or undefined if not supported.
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* @returns {MutationObserver|*|undefined} The ResizeObserver Object or undefined.
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*/
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rO: bind(VENDORS._jsAPI, 0, 'ResizeObserver', true),
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/**
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* Gets the RequestAnimationFrame method or it's corresponding polyfill.
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* @returns {*|Function} The RequestAnimationFrame method or it's corresponding polyfill.
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*/
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rAF: bind(VENDORS._jsAPI, 0, 'requestAnimationFrame', false, function (func) { return window.setTimeout(func, 1000 / 60); }),
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/**
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* Gets the CancelAnimationFrame method or it's corresponding polyfill.
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* @returns {*|Function} The CancelAnimationFrame method or it's corresponding polyfill.
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*/
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cAF: bind(VENDORS._jsAPI, 0, 'cancelAnimationFrame', false, function (id) { return window.clearTimeout(id); }),
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/**
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* Gets the current time.
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* @returns {number} The current time.
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*/
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now: function () {
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return Date.now && Date.now() || new Date().getTime();
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},
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/**
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* Stops the propagation of the given event.
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* @param event The event of which the propagation shall be stoped.
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*/
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stpP: function (event) {
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if (event.stopPropagation)
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event.stopPropagation();
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else
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event.cancelBubble = true;
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},
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/**
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* Prevents the default action of the given event.
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* @param event The event of which the default action shall be prevented.
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*/
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prvD: function (event) {
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if (event.preventDefault && event.cancelable)
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event.preventDefault();
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else
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event.returnValue = false;
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},
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/**
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* Gets the pageX and pageY values of the given mouse event.
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* @param event The mouse event of which the pageX and pageX shall be got.
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* @returns {{x: number, y: number}} x = pageX value, y = pageY value.
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*/
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page: function (event) {
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event = event.originalEvent || event;
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var strPage = 'page';
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var strClient = 'client';
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var strX = 'X';
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var strY = 'Y';
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var target = event.target || event.srcElement || document;
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var eventDoc = target.ownerDocument || document;
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var doc = eventDoc.documentElement;
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var body = eventDoc.body;
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//if touch event return return pageX/Y of it
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if (event.touches !== undefined) {
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var touch = event.touches[0];
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return {
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x: touch[strPage + strX],
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y: touch[strPage + strY]
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}
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}
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// Calculate pageX/Y if not native supported
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if (!event[strPage + strX] && event[strClient + strX] && event[strClient + strX] != null) {
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return {
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x: event[strClient + strX] +
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(doc && doc.scrollLeft || body && body.scrollLeft || 0) -
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(doc && doc.clientLeft || body && body.clientLeft || 0),
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y: event[strClient + strY] +
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(doc && doc.scrollTop || body && body.scrollTop || 0) -
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(doc && doc.clientTop || body && body.clientTop || 0)
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}
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}
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return {
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x: event[strPage + strX],
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y: event[strPage + strY]
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};
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},
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/**
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* Gets the clicked mouse button of the given mouse event.
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* @param event The mouse event of which the clicked button shal be got.
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* @returns {number} The number of the clicked mouse button. (0 : none | 1 : leftButton | 2 : middleButton | 3 : rightButton)
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*/
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mBtn: function (event) {
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var button = event.button;
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if (!event.which && button !== undefined)
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return (button & 1 ? 1 : (button & 2 ? 3 : (button & 4 ? 2 : 0)));
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else
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return event.which;
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},
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/**
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* Checks whether a item is in the given array and returns its index.
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* @param item The item of which the position in the array shall be determined.
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* @param arr The array.
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* @returns {number} The zero based index of the item or -1 if the item isn't in the array.
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*/
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inA: function (item, arr) {
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for (var i = 0; i < arr[LEXICON.l]; i++)
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//Sometiems in IE a "SCRIPT70" Permission denied error occurs if HTML elements in a iFrame are compared
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try {
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if (arr[i] === item)
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return i;
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}
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catch (e) { }
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return -1;
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},
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/**
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* Returns true if the given value is a array.
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* @param arr The potential array.
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* @returns {boolean} True if the given value is a array, false otherwise.
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*/
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isA: function (arr) {
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var def = Array.isArray;
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return def ? def(arr) : this.type(arr) == TYPES.a;
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},
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/**
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* Determine the internal JavaScript [[Class]] of the given object.
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* @param obj The object of which the type shall be determined.
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* @returns {string} The type of the given object.
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*/
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type: function (obj) {
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if (obj === undefined)
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return obj + '';
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if (obj === null)
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return obj + '';
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return Object[LEXICON.p].toString.call(obj).replace(/^\[object (.+)\]$/, '$1').toLowerCase();
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},
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bind: bind
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/**
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* Gets the vendor-prefixed CSS property by the given name.
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* For example the given name is "transform" and you're using a old Firefox browser then the returned value would be "-moz-transform".
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* If the browser doesn't need a vendor-prefix, then the returned string is the given name.
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* If the browser doesn't support the given property name at all (not even with a vendor-prefix) the returned value is null.
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* @param propName The unprefixed CSS property name.
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* @returns {string|null} The vendor-prefixed CSS property or null if the browser doesn't support the given CSS property.
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cssProp: function(propName) {
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return VENDORS._cssProperty(propName);
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}
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*/
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}
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})();
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var MATH = Math;
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var JQUERY = framework;
|
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var EASING = framework.easing;
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var FRAMEWORK = framework;
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var INSTANCES = (function () {
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var _targets = [];
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var _instancePropertyString = '__overlayScrollbars__';
|
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|
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/**
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* Register, unregister or get a certain (or all) instances.
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* Register: Pass the target and the instance.
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* Unregister: Pass the target and null.
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* Get Instance: Pass the target from which the instance shall be got.
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* Get Targets: Pass no arguments.
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* @param target The target to which the instance shall be registered / from which the instance shall be unregistered / the instance shall be got
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* @param instance The instance.
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* @returns {*|void} Returns the instance from the given target.
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*/
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return function (target, instance) {
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var argLen = arguments[LEXICON.l];
|
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if (argLen < 1) {
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//return all targets
|
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return _targets;
|
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}
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else {
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if (instance) {
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//register instance
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target[_instancePropertyString] = instance;
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_targets.push(target);
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}
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else {
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var index = COMPATIBILITY.inA(target, _targets);
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if (index > -1) {
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if (argLen > 1) {
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//unregister instance
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delete target[_instancePropertyString];
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_targets.splice(index, 1);
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}
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else {
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//get instance from target
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return _targets[index][_instancePropertyString];
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}
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}
|
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}
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}
|
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}
|
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})();
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var PLUGIN = (function () {
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var _plugin;
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var _pluginsGlobals;
|
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var _pluginsAutoUpdateLoop;
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var _pluginsExtensions = [];
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var _pluginsOptions = (function () {
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var type = COMPATIBILITY.type;
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var possibleTemplateTypes = [
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TYPES.b, //boolean
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TYPES.n, //number
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TYPES.s, //string
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TYPES.a, //array
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TYPES.o, //object
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TYPES.f, //function
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TYPES.z //null
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];
|
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var restrictedStringsSplit = ' ';
|
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var restrictedStringsPossibilitiesSplit = ':';
|
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var classNameAllowedValues = [TYPES.z, TYPES.s];
|
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var numberAllowedValues = TYPES.n;
|
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var booleanNullAllowedValues = [TYPES.z, TYPES.b];
|
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var booleanTrueTemplate = [true, TYPES.b];
|
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var booleanFalseTemplate = [false, TYPES.b];
|
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var callbackTemplate = [null, [TYPES.z, TYPES.f]];
|
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var updateOnLoadTemplate = [['img'], [TYPES.s, TYPES.a, TYPES.z]];
|
|
var inheritedAttrsTemplate = [['style', 'class'], [TYPES.s, TYPES.a, TYPES.z]];
|
|
var resizeAllowedValues = 'n:none b:both h:horizontal v:vertical';
|
|
var overflowBehaviorAllowedValues = 'v-h:visible-hidden v-s:visible-scroll s:scroll h:hidden';
|
|
var scrollbarsVisibilityAllowedValues = 'v:visible h:hidden a:auto';
|
|
var scrollbarsAutoHideAllowedValues = 'n:never s:scroll l:leave m:move';
|
|
var optionsDefaultsAndTemplate = {
|
|
className: ['os-theme-dark', classNameAllowedValues], //null || string
|
|
resize: ['none', resizeAllowedValues], //none || both || horizontal || vertical || n || b || h || v
|
|
sizeAutoCapable: booleanTrueTemplate, //true || false
|
|
clipAlways: booleanTrueTemplate, //true || false
|
|
normalizeRTL: booleanTrueTemplate, //true || false
|
|
paddingAbsolute: booleanFalseTemplate, //true || false
|
|
autoUpdate: [null, booleanNullAllowedValues], //true || false || null
|
|
autoUpdateInterval: [33, numberAllowedValues], //number
|
|
updateOnLoad: updateOnLoadTemplate, //string || array || null
|
|
nativeScrollbarsOverlaid: {
|
|
showNativeScrollbars: booleanFalseTemplate, //true || false
|
|
initialize: booleanTrueTemplate //true || false
|
|
},
|
|
overflowBehavior: {
|
|
x: ['scroll', overflowBehaviorAllowedValues], //visible-hidden || visible-scroll || hidden || scroll || v-h || v-s || h || s
|
|
y: ['scroll', overflowBehaviorAllowedValues] //visible-hidden || visible-scroll || hidden || scroll || v-h || v-s || h || s
|
|
},
|
|
scrollbars: {
|
|
visibility: ['auto', scrollbarsVisibilityAllowedValues], //visible || hidden || auto || v || h || a
|
|
autoHide: ['never', scrollbarsAutoHideAllowedValues], //never || scroll || leave || move || n || s || l || m
|
|
autoHideDelay: [800, numberAllowedValues], //number
|
|
dragScrolling: booleanTrueTemplate, //true || false
|
|
clickScrolling: booleanFalseTemplate, //true || false
|
|
touchSupport: booleanTrueTemplate, //true || false
|
|
snapHandle: booleanFalseTemplate //true || false
|
|
},
|
|
textarea: {
|
|
dynWidth: booleanFalseTemplate, //true || false
|
|
dynHeight: booleanFalseTemplate, //true || false
|
|
inheritedAttrs: inheritedAttrsTemplate //string || array || null
|
|
},
|
|
callbacks: {
|
|
onInitialized: callbackTemplate, //null || function
|
|
onInitializationWithdrawn: callbackTemplate, //null || function
|
|
onDestroyed: callbackTemplate, //null || function
|
|
onScrollStart: callbackTemplate, //null || function
|
|
onScroll: callbackTemplate, //null || function
|
|
onScrollStop: callbackTemplate, //null || function
|
|
onOverflowChanged: callbackTemplate, //null || function
|
|
onOverflowAmountChanged: callbackTemplate, //null || function
|
|
onDirectionChanged: callbackTemplate, //null || function
|
|
onContentSizeChanged: callbackTemplate, //null || function
|
|
onHostSizeChanged: callbackTemplate, //null || function
|
|
onUpdated: callbackTemplate //null || function
|
|
}
|
|
};
|
|
var convert = function (template) {
|
|
var recursive = function (obj) {
|
|
var key;
|
|
var val;
|
|
var valType;
|
|
for (key in obj) {
|
|
if (!obj[LEXICON.hOP](key))
|
|
continue;
|
|
val = obj[key];
|
|
valType = type(val);
|
|
if (valType == TYPES.a)
|
|
obj[key] = val[template ? 1 : 0];
|
|
else if (valType == TYPES.o)
|
|
obj[key] = recursive(val);
|
|
}
|
|
return obj;
|
|
};
|
|
return recursive(FRAMEWORK.extend(true, {}, optionsDefaultsAndTemplate));
|
|
};
|
|
|
|
return {
|
|
_defaults: convert(),
|
|
|
|
_template: convert(true),
|
|
|
|
/**
|
|
* Validates the passed object by the passed template.
|
|
* @param obj The object which shall be validated.
|
|
* @param template The template which defines the allowed values and types.
|
|
* @param writeErrors True if errors shall be logged to the console.
|
|
* @param diffObj If a object is passed then only valid differences to this object will be returned.
|
|
* @returns {{}} A object which contains two objects called "default" and "prepared" which contains only the valid properties of the passed original object and discards not different values compared to the passed diffObj.
|
|
*/
|
|
_validate: function (obj, template, writeErrors, diffObj) {
|
|
var validatedOptions = {};
|
|
var validatedOptionsPrepared = {};
|
|
var objectCopy = FRAMEWORK.extend(true, {}, obj);
|
|
var inArray = FRAMEWORK.inArray;
|
|
var isEmptyObj = FRAMEWORK.isEmptyObject;
|
|
var checkObjectProps = function (data, template, diffData, validatedOptions, validatedOptionsPrepared, prevPropName) {
|
|
for (var prop in template) {
|
|
if (template[LEXICON.hOP](prop) && data[LEXICON.hOP](prop)) {
|
|
var isValid = false;
|
|
var isDiff = false;
|
|
var templateValue = template[prop];
|
|
var templateValueType = type(templateValue);
|
|
var templateIsComplex = templateValueType == TYPES.o;
|
|
var templateTypes = !COMPATIBILITY.isA(templateValue) ? [templateValue] : templateValue;
|
|
var dataDiffValue = diffData[prop];
|
|
var dataValue = data[prop];
|
|
var dataValueType = type(dataValue);
|
|
var propPrefix = prevPropName ? prevPropName + '.' : '';
|
|
var error = "The option \"" + propPrefix + prop + "\" wasn't set, because";
|
|
var errorPossibleTypes = [];
|
|
var errorRestrictedStrings = [];
|
|
var restrictedStringValuesSplit;
|
|
var restrictedStringValuesPossibilitiesSplit;
|
|
var isRestrictedValue;
|
|
var mainPossibility;
|
|
var currType;
|
|
var i;
|
|
var v;
|
|
var j;
|
|
|
|
dataDiffValue = dataDiffValue === undefined ? {} : dataDiffValue;
|
|
|
|
//if the template has a object as value, it means that the options are complex (verschachtelt)
|
|
if (templateIsComplex && dataValueType == TYPES.o) {
|
|
validatedOptions[prop] = {};
|
|
validatedOptionsPrepared[prop] = {};
|
|
checkObjectProps(dataValue, templateValue, dataDiffValue, validatedOptions[prop], validatedOptionsPrepared[prop], propPrefix + prop);
|
|
FRAMEWORK.each([data, validatedOptions, validatedOptionsPrepared], function (index, value) {
|
|
if (isEmptyObj(value[prop])) {
|
|
delete value[prop];
|
|
}
|
|
});
|
|
}
|
|
else if (!templateIsComplex) {
|
|
for (i = 0; i < templateTypes[LEXICON.l]; i++) {
|
|
currType = templateTypes[i];
|
|
templateValueType = type(currType);
|
|
//if currtype is string and starts with restrictedStringPrefix and end with restrictedStringSuffix
|
|
isRestrictedValue = templateValueType == TYPES.s && inArray(currType, possibleTemplateTypes) === -1;
|
|
if (isRestrictedValue) {
|
|
errorPossibleTypes.push(TYPES.s);
|
|
|
|
//split it into a array which contains all possible values for example: ["y:yes", "n:no", "m:maybe"]
|
|
restrictedStringValuesSplit = currType.split(restrictedStringsSplit);
|
|
errorRestrictedStrings = errorRestrictedStrings.concat(restrictedStringValuesSplit);
|
|
for (v = 0; v < restrictedStringValuesSplit[LEXICON.l]; v++) {
|
|
//split the possible values into their possibiliteis for example: ["y", "yes"] -> the first is always the mainPossibility
|
|
restrictedStringValuesPossibilitiesSplit = restrictedStringValuesSplit[v].split(restrictedStringsPossibilitiesSplit);
|
|
mainPossibility = restrictedStringValuesPossibilitiesSplit[0];
|
|
for (j = 0; j < restrictedStringValuesPossibilitiesSplit[LEXICON.l]; j++) {
|
|
//if any possibility matches with the dataValue, its valid
|
|
if (dataValue === restrictedStringValuesPossibilitiesSplit[j]) {
|
|
isValid = true;
|
|
break;
|
|
}
|
|
}
|
|
if (isValid)
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
errorPossibleTypes.push(currType);
|
|
|
|
if (dataValueType === currType) {
|
|
isValid = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (isValid) {
|
|
isDiff = dataValue !== dataDiffValue;
|
|
|
|
if (isDiff)
|
|
validatedOptions[prop] = dataValue;
|
|
|
|
if (isRestrictedValue ? inArray(dataDiffValue, restrictedStringValuesPossibilitiesSplit) < 0 : isDiff)
|
|
validatedOptionsPrepared[prop] = isRestrictedValue ? mainPossibility : dataValue;
|
|
}
|
|
else if (writeErrors) {
|
|
console.warn(error + " it doesn't accept the type [ " + dataValueType.toUpperCase() + " ] with the value of \"" + dataValue + "\".\r\n" +
|
|
"Accepted types are: [ " + errorPossibleTypes.join(', ').toUpperCase() + " ]." +
|
|
(errorRestrictedStrings[length] > 0 ? "\r\nValid strings are: [ " + errorRestrictedStrings.join(', ').split(restrictedStringsPossibilitiesSplit).join(', ') + " ]." : ''));
|
|
}
|
|
delete data[prop];
|
|
}
|
|
}
|
|
}
|
|
};
|
|
checkObjectProps(objectCopy, template, diffObj || {}, validatedOptions, validatedOptionsPrepared);
|
|
|
|
//add values which aren't specified in the template to the finished validated object to prevent them from being discarded
|
|
/*
|
|
if(keepForeignProps) {
|
|
FRAMEWORK.extend(true, validatedOptions, objectCopy);
|
|
FRAMEWORK.extend(true, validatedOptionsPrepared, objectCopy);
|
|
}
|
|
*/
|
|
|
|
if (!isEmptyObj(objectCopy) && writeErrors)
|
|
console.warn('The following options are discarded due to invalidity:\r\n' + window.JSON.stringify(objectCopy, null, 2));
|
|
|
|
return {
|
|
_default: validatedOptions,
|
|
_prepared: validatedOptionsPrepared
|
|
};
|
|
}
|
|
}
|
|
}());
|
|
|
|
/**
|
|
* Initializes the object which contains global information about the plugin and each instance of it.
|
|
*/
|
|
function initOverlayScrollbarsStatics() {
|
|
if (!_pluginsGlobals)
|
|
_pluginsGlobals = new OverlayScrollbarsGlobals(_pluginsOptions._defaults);
|
|
if (!_pluginsAutoUpdateLoop)
|
|
_pluginsAutoUpdateLoop = new OverlayScrollbarsAutoUpdateLoop(_pluginsGlobals);
|
|
}
|
|
|
|
/**
|
|
* The global object for the OverlayScrollbars objects. It contains resources which every OverlayScrollbars object needs. This object is initialized only once: if the first OverlayScrollbars object gets initialized.
|
|
* @param defaultOptions
|
|
* @constructor
|
|
*/
|
|
function OverlayScrollbarsGlobals(defaultOptions) {
|
|
var _base = this;
|
|
var strOverflow = 'overflow';
|
|
var strHidden = 'hidden';
|
|
var strScroll = 'scroll';
|
|
var bodyElement = FRAMEWORK('body');
|
|
var scrollbarDummyElement = FRAMEWORK('<div id="os-dummy-scrollbar-size"><div></div></div>');
|
|
var scrollbarDummyElement0 = scrollbarDummyElement[0];
|
|
var dummyContainerChild = FRAMEWORK(scrollbarDummyElement.children('div').eq(0));
|
|
|
|
bodyElement.append(scrollbarDummyElement);
|
|
scrollbarDummyElement.hide().show(); //fix IE8 bug (incorrect measuring)
|
|
|
|
var nativeScrollbarSize = calcNativeScrollbarSize(scrollbarDummyElement0);
|
|
var nativeScrollbarIsOverlaid = {
|
|
x: nativeScrollbarSize.x === 0,
|
|
y: nativeScrollbarSize.y === 0
|
|
};
|
|
var msie = (function () {
|
|
var ua = window.navigator.userAgent;
|
|
var strIndexOf = 'indexOf';
|
|
var strSubString = 'substring';
|
|
var msie = ua[strIndexOf]('MSIE ');
|
|
var trident = ua[strIndexOf]('Trident/');
|
|
var edge = ua[strIndexOf]('Edge/');
|
|
var rv = ua[strIndexOf]('rv:');
|
|
var result;
|
|
var parseIntFunc = parseInt;
|
|
|
|
// IE 10 or older => return version number
|
|
if (msie > 0)
|
|
result = parseIntFunc(ua[strSubString](msie + 5, ua[strIndexOf]('.', msie)), 10);
|
|
|
|
// IE 11 => return version number
|
|
else if (trident > 0)
|
|
result = parseIntFunc(ua[strSubString](rv + 3, ua[strIndexOf]('.', rv)), 10);
|
|
|
|
// Edge (IE 12+) => return version number
|
|
else if (edge > 0)
|
|
result = parseIntFunc(ua[strSubString](edge + 5, ua[strIndexOf]('.', edge)), 10);
|
|
|
|
// other browser
|
|
return result;
|
|
})();
|
|
|
|
FRAMEWORK.extend(_base, {
|
|
defaultOptions: defaultOptions,
|
|
msie: msie,
|
|
autoUpdateLoop: false,
|
|
autoUpdateRecommended: !COMPATIBILITY.mO(),
|
|
nativeScrollbarSize: nativeScrollbarSize,
|
|
nativeScrollbarIsOverlaid: nativeScrollbarIsOverlaid,
|
|
nativeScrollbarStyling: (function () {
|
|
var result = false;
|
|
scrollbarDummyElement.addClass('os-viewport-native-scrollbars-invisible');
|
|
try {
|
|
result = (scrollbarDummyElement.css('scrollbar-width') === 'none' && (msie > 9 || !msie)) || window.getComputedStyle(scrollbarDummyElement0, '::-webkit-scrollbar').getPropertyValue('display') === 'none';
|
|
} catch (ex) { }
|
|
|
|
//fix opera bug: scrollbar styles will only appear if overflow value is scroll or auto during the activation of the style.
|
|
//and set overflow to scroll
|
|
//scrollbarDummyElement.css(strOverflow, strHidden).hide().css(strOverflow, strScroll).show();
|
|
//return (scrollbarDummyElement0[LEXICON.oH] - scrollbarDummyElement0[LEXICON.cH]) === 0 && (scrollbarDummyElement0[LEXICON.oW] - scrollbarDummyElement0[LEXICON.cW]) === 0;
|
|
|
|
return result;
|
|
})(),
|
|
overlayScrollbarDummySize: { x: 30, y: 30 },
|
|
cssCalc: VENDORS._cssPropertyValue('width', 'calc', '(1px)') || null,
|
|
restrictedMeasuring: (function () {
|
|
//https://bugzilla.mozilla.org/show_bug.cgi?id=1439305
|
|
//since 1.11.0 always false -> fixed via CSS (hopefully)
|
|
scrollbarDummyElement.css(strOverflow, strHidden);
|
|
var scrollSize = {
|
|
w: scrollbarDummyElement0[LEXICON.sW],
|
|
h: scrollbarDummyElement0[LEXICON.sH]
|
|
};
|
|
scrollbarDummyElement.css(strOverflow, 'visible');
|
|
var scrollSize2 = {
|
|
w: scrollbarDummyElement0[LEXICON.sW],
|
|
h: scrollbarDummyElement0[LEXICON.sH]
|
|
};
|
|
return (scrollSize.w - scrollSize2.w) !== 0 || (scrollSize.h - scrollSize2.h) !== 0;
|
|
})(),
|
|
rtlScrollBehavior: (function () {
|
|
scrollbarDummyElement.css({ 'overflow-y': strHidden, 'overflow-x': strScroll, 'direction': 'rtl' }).scrollLeft(0);
|
|
var dummyContainerOffset = scrollbarDummyElement.offset();
|
|
var dummyContainerChildOffset = dummyContainerChild.offset();
|
|
//https://github.com/KingSora/OverlayScrollbars/issues/187
|
|
scrollbarDummyElement.scrollLeft(-999);
|
|
var dummyContainerChildOffsetAfterScroll = dummyContainerChild.offset();
|
|
return {
|
|
//origin direction = determines if the zero scroll position is on the left or right side
|
|
//'i' means 'invert' (i === true means that the axis must be inverted to be correct)
|
|
//true = on the left side
|
|
//false = on the right side
|
|
i: dummyContainerOffset.left === dummyContainerChildOffset.left,
|
|
//negative = determines if the maximum scroll is positive or negative
|
|
//'n' means 'negate' (n === true means that the axis must be negated to be correct)
|
|
//true = negative
|
|
//false = positive
|
|
n: dummyContainerChildOffset.left !== dummyContainerChildOffsetAfterScroll.left
|
|
};
|
|
})(),
|
|
supportTransform: !!VENDORS._cssProperty('transform'),
|
|
supportTransition: !!VENDORS._cssProperty('transition'),
|
|
supportPassiveEvents: (function () {
|
|
var supportsPassive = false;
|
|
try {
|
|
window.addEventListener('test', null, Object.defineProperty({}, 'passive', {
|
|
get: function () {
|
|
supportsPassive = true;
|
|
}
|
|
}));
|
|
} catch (e) { }
|
|
return supportsPassive;
|
|
})(),
|
|
supportResizeObserver: !!COMPATIBILITY.rO(),
|
|
supportMutationObserver: !!COMPATIBILITY.mO()
|
|
});
|
|
|
|
scrollbarDummyElement.removeAttr(LEXICON.s).remove();
|
|
|
|
//Catch zoom event:
|
|
(function () {
|
|
if (nativeScrollbarIsOverlaid.x && nativeScrollbarIsOverlaid.y)
|
|
return;
|
|
|
|
var abs = MATH.abs;
|
|
var windowWidth = COMPATIBILITY.wW();
|
|
var windowHeight = COMPATIBILITY.wH();
|
|
var windowDpr = getWindowDPR();
|
|
var onResize = function () {
|
|
if (INSTANCES().length > 0) {
|
|
var newW = COMPATIBILITY.wW();
|
|
var newH = COMPATIBILITY.wH();
|
|
var deltaW = newW - windowWidth;
|
|
var deltaH = newH - windowHeight;
|
|
|
|
if (deltaW === 0 && deltaH === 0)
|
|
return;
|
|
|
|
var deltaWRatio = MATH.round(newW / (windowWidth / 100.0));
|
|
var deltaHRatio = MATH.round(newH / (windowHeight / 100.0));
|
|
var absDeltaW = abs(deltaW);
|
|
var absDeltaH = abs(deltaH);
|
|
var absDeltaWRatio = abs(deltaWRatio);
|
|
var absDeltaHRatio = abs(deltaHRatio);
|
|
var newDPR = getWindowDPR();
|
|
|
|
var deltaIsBigger = absDeltaW > 2 && absDeltaH > 2;
|
|
var difference = !differenceIsBiggerThanOne(absDeltaWRatio, absDeltaHRatio);
|
|
var dprChanged = newDPR !== windowDpr && windowDpr > 0;
|
|
var isZoom = deltaIsBigger && difference && dprChanged;
|
|
var oldScrollbarSize = _base.nativeScrollbarSize;
|
|
var newScrollbarSize;
|
|
|
|
if (isZoom) {
|
|
bodyElement.append(scrollbarDummyElement);
|
|
newScrollbarSize = _base.nativeScrollbarSize = calcNativeScrollbarSize(scrollbarDummyElement[0]);
|
|
scrollbarDummyElement.remove();
|
|
if (oldScrollbarSize.x !== newScrollbarSize.x || oldScrollbarSize.y !== newScrollbarSize.y) {
|
|
FRAMEWORK.each(INSTANCES(), function () {
|
|
if (INSTANCES(this))
|
|
INSTANCES(this).update('zoom');
|
|
});
|
|
}
|
|
}
|
|
|
|
windowWidth = newW;
|
|
windowHeight = newH;
|
|
windowDpr = newDPR;
|
|
}
|
|
};
|
|
|
|
function differenceIsBiggerThanOne(valOne, valTwo) {
|
|
var absValOne = abs(valOne);
|
|
var absValTwo = abs(valTwo);
|
|
return !(absValOne === absValTwo || absValOne + 1 === absValTwo || absValOne - 1 === absValTwo);
|
|
}
|
|
|
|
function getWindowDPR() {
|
|
var dDPI = window.screen.deviceXDPI || 0;
|
|
var sDPI = window.screen.logicalXDPI || 1;
|
|
return window.devicePixelRatio || (dDPI / sDPI);
|
|
}
|
|
|
|
FRAMEWORK(window).on('resize', onResize);
|
|
})();
|
|
|
|
function calcNativeScrollbarSize(measureElement) {
|
|
return {
|
|
x: measureElement[LEXICON.oH] - measureElement[LEXICON.cH],
|
|
y: measureElement[LEXICON.oW] - measureElement[LEXICON.cW]
|
|
};
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The object which manages the auto update loop for all OverlayScrollbars objects. This object is initialized only once: if the first OverlayScrollbars object gets initialized.
|
|
* @constructor
|
|
*/
|
|
function OverlayScrollbarsAutoUpdateLoop(globals) {
|
|
var _base = this;
|
|
var _inArray = FRAMEWORK.inArray;
|
|
var _getNow = COMPATIBILITY.now;
|
|
var _strAutoUpdate = 'autoUpdate';
|
|
var _strAutoUpdateInterval = _strAutoUpdate + 'Interval';
|
|
var _strLength = LEXICON.l;
|
|
var _loopingInstances = [];
|
|
var _loopingInstancesIntervalCache = [];
|
|
var _loopIsActive = false;
|
|
var _loopIntervalDefault = 33;
|
|
var _loopInterval = _loopIntervalDefault;
|
|
var _loopTimeOld = _getNow();
|
|
var _loopID;
|
|
|
|
|
|
/**
|
|
* The auto update loop which will run every 50 milliseconds or less if the update interval of a instance is lower than 50 milliseconds.
|
|
*/
|
|
var loop = function () {
|
|
if (_loopingInstances[_strLength] > 0 && _loopIsActive) {
|
|
_loopID = COMPATIBILITY.rAF()(function () {
|
|
loop();
|
|
});
|
|
var timeNew = _getNow();
|
|
var timeDelta = timeNew - _loopTimeOld;
|
|
var lowestInterval;
|
|
var instance;
|
|
var instanceOptions;
|
|
var instanceAutoUpdateAllowed;
|
|
var instanceAutoUpdateInterval;
|
|
var now;
|
|
|
|
if (timeDelta > _loopInterval) {
|
|
_loopTimeOld = timeNew - (timeDelta % _loopInterval);
|
|
lowestInterval = _loopIntervalDefault;
|
|
for (var i = 0; i < _loopingInstances[_strLength]; i++) {
|
|
instance = _loopingInstances[i];
|
|
if (instance !== undefined) {
|
|
instanceOptions = instance.options();
|
|
instanceAutoUpdateAllowed = instanceOptions[_strAutoUpdate];
|
|
instanceAutoUpdateInterval = MATH.max(1, instanceOptions[_strAutoUpdateInterval]);
|
|
now = _getNow();
|
|
|
|
if ((instanceAutoUpdateAllowed === true || instanceAutoUpdateAllowed === null) && (now - _loopingInstancesIntervalCache[i]) > instanceAutoUpdateInterval) {
|
|
instance.update('auto');
|
|
_loopingInstancesIntervalCache[i] = new Date(now += instanceAutoUpdateInterval);
|
|
}
|
|
|
|
lowestInterval = MATH.max(1, MATH.min(lowestInterval, instanceAutoUpdateInterval));
|
|
}
|
|
}
|
|
_loopInterval = lowestInterval;
|
|
}
|
|
} else {
|
|
_loopInterval = _loopIntervalDefault;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Add OverlayScrollbars instance to the auto update loop. Only successful if the instance isn't already added.
|
|
* @param instance The instance which shall be updated in a loop automatically.
|
|
*/
|
|
_base.add = function (instance) {
|
|
if (_inArray(instance, _loopingInstances) === -1) {
|
|
_loopingInstances.push(instance);
|
|
_loopingInstancesIntervalCache.push(_getNow());
|
|
if (_loopingInstances[_strLength] > 0 && !_loopIsActive) {
|
|
_loopIsActive = true;
|
|
globals.autoUpdateLoop = _loopIsActive;
|
|
loop();
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Remove OverlayScrollbars instance from the auto update loop. Only successful if the instance was added before.
|
|
* @param instance The instance which shall be updated in a loop automatically.
|
|
*/
|
|
_base.remove = function (instance) {
|
|
var index = _inArray(instance, _loopingInstances);
|
|
if (index > -1) {
|
|
//remove from loopingInstances list
|
|
_loopingInstancesIntervalCache.splice(index, 1);
|
|
_loopingInstances.splice(index, 1);
|
|
|
|
//correct update loop behavior
|
|
if (_loopingInstances[_strLength] === 0 && _loopIsActive) {
|
|
_loopIsActive = false;
|
|
globals.autoUpdateLoop = _loopIsActive;
|
|
if (_loopID !== undefined) {
|
|
COMPATIBILITY.cAF()(_loopID);
|
|
_loopID = -1;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* A object which manages the scrollbars visibility of the target element.
|
|
* @param pluginTargetElement The element from which the scrollbars shall be hidden.
|
|
* @param options The custom options.
|
|
* @param extensions The custom extensions.
|
|
* @param globals
|
|
* @param autoUpdateLoop
|
|
* @returns {*}
|
|
* @constructor
|
|
*/
|
|
function OverlayScrollbarsInstance(pluginTargetElement, options, extensions, globals, autoUpdateLoop) {
|
|
//shortcuts
|
|
var type = COMPATIBILITY.type;
|
|
var inArray = FRAMEWORK.inArray;
|
|
var each = FRAMEWORK.each;
|
|
|
|
//make correct instanceof
|
|
var _base = new _plugin();
|
|
var _frameworkProto = FRAMEWORK[LEXICON.p];
|
|
|
|
//if passed element is no HTML element: skip and return
|
|
if (!isHTMLElement(pluginTargetElement))
|
|
return;
|
|
|
|
//if passed element is already initialized: set passed options if there are any and return its instance
|
|
if (INSTANCES(pluginTargetElement)) {
|
|
var inst = INSTANCES(pluginTargetElement);
|
|
inst.options(options);
|
|
return inst;
|
|
}
|
|
|
|
//globals:
|
|
var _nativeScrollbarIsOverlaid;
|
|
var _overlayScrollbarDummySize;
|
|
var _rtlScrollBehavior;
|
|
var _autoUpdateRecommended;
|
|
var _msieVersion;
|
|
var _nativeScrollbarStyling;
|
|
var _cssCalc;
|
|
var _nativeScrollbarSize;
|
|
var _supportTransition;
|
|
var _supportTransform;
|
|
var _supportPassiveEvents;
|
|
var _supportResizeObserver;
|
|
var _supportMutationObserver;
|
|
var _restrictedMeasuring;
|
|
|
|
//general readonly:
|
|
var _initialized;
|
|
var _destroyed;
|
|
var _isTextarea;
|
|
var _isBody;
|
|
var _documentMixed;
|
|
var _domExists;
|
|
|
|
//general:
|
|
var _isBorderBox;
|
|
var _sizeAutoObserverAdded;
|
|
var _paddingX;
|
|
var _paddingY;
|
|
var _borderX;
|
|
var _borderY;
|
|
var _marginX;
|
|
var _marginY;
|
|
var _isRTL;
|
|
var _sleeping;
|
|
var _contentBorderSize = {};
|
|
var _scrollHorizontalInfo = {};
|
|
var _scrollVerticalInfo = {};
|
|
var _viewportSize = {};
|
|
var _nativeScrollbarMinSize = {};
|
|
|
|
//naming:
|
|
var _strMinusHidden = '-hidden';
|
|
var _strMarginMinus = 'margin-';
|
|
var _strPaddingMinus = 'padding-';
|
|
var _strBorderMinus = 'border-';
|
|
var _strTop = 'top';
|
|
var _strRight = 'right';
|
|
var _strBottom = 'bottom';
|
|
var _strLeft = 'left';
|
|
var _strMinMinus = 'min-';
|
|
var _strMaxMinus = 'max-';
|
|
var _strWidth = 'width';
|
|
var _strHeight = 'height';
|
|
var _strFloat = 'float';
|
|
var _strEmpty = '';
|
|
var _strAuto = 'auto';
|
|
var _strSync = 'sync';
|
|
var _strScroll = 'scroll';
|
|
var _strHundredPercent = '100%';
|
|
var _strX = 'x';
|
|
var _strY = 'y';
|
|
var _strDot = '.';
|
|
var _strSpace = ' ';
|
|
var _strScrollbar = 'scrollbar';
|
|
var _strMinusHorizontal = '-horizontal';
|
|
var _strMinusVertical = '-vertical';
|
|
var _strScrollLeft = _strScroll + 'Left';
|
|
var _strScrollTop = _strScroll + 'Top';
|
|
var _strMouseTouchDownEvent = 'mousedown touchstart';
|
|
var _strMouseTouchUpEvent = 'mouseup touchend touchcancel';
|
|
var _strMouseTouchMoveEvent = 'mousemove touchmove';
|
|
var _strMouseEnter = 'mouseenter';
|
|
var _strMouseLeave = 'mouseleave';
|
|
var _strKeyDownEvent = 'keydown';
|
|
var _strKeyUpEvent = 'keyup';
|
|
var _strSelectStartEvent = 'selectstart';
|
|
var _strTransitionEndEvent = 'transitionend webkitTransitionEnd oTransitionEnd';
|
|
var _strResizeObserverProperty = '__overlayScrollbarsRO__';
|
|
|
|
//class names:
|
|
var _cassNamesPrefix = 'os-';
|
|
var _classNameHTMLElement = _cassNamesPrefix + 'html';
|
|
var _classNameHostElement = _cassNamesPrefix + 'host';
|
|
var _classNameHostElementForeign = _classNameHostElement + '-foreign';
|
|
var _classNameHostTextareaElement = _classNameHostElement + '-textarea';
|
|
var _classNameHostScrollbarHorizontalHidden = _classNameHostElement + '-' + _strScrollbar + _strMinusHorizontal + _strMinusHidden;
|
|
var _classNameHostScrollbarVerticalHidden = _classNameHostElement + '-' + _strScrollbar + _strMinusVertical + _strMinusHidden;
|
|
var _classNameHostTransition = _classNameHostElement + '-transition';
|
|
var _classNameHostRTL = _classNameHostElement + '-rtl';
|
|
var _classNameHostResizeDisabled = _classNameHostElement + '-resize-disabled';
|
|
var _classNameHostScrolling = _classNameHostElement + '-scrolling';
|
|
var _classNameHostOverflow = _classNameHostElement + '-overflow';
|
|
var _classNameHostOverflow = _classNameHostElement + '-overflow';
|
|
var _classNameHostOverflowX = _classNameHostOverflow + '-x';
|
|
var _classNameHostOverflowY = _classNameHostOverflow + '-y';
|
|
var _classNameTextareaElement = _cassNamesPrefix + 'textarea';
|
|
var _classNameTextareaCoverElement = _classNameTextareaElement + '-cover';
|
|
var _classNamePaddingElement = _cassNamesPrefix + 'padding';
|
|
var _classNameViewportElement = _cassNamesPrefix + 'viewport';
|
|
var _classNameViewportNativeScrollbarsInvisible = _classNameViewportElement + '-native-scrollbars-invisible';
|
|
var _classNameViewportNativeScrollbarsOverlaid = _classNameViewportElement + '-native-scrollbars-overlaid';
|
|
var _classNameContentElement = _cassNamesPrefix + 'content';
|
|
var _classNameContentArrangeElement = _cassNamesPrefix + 'content-arrange';
|
|
var _classNameContentGlueElement = _cassNamesPrefix + 'content-glue';
|
|
var _classNameSizeAutoObserverElement = _cassNamesPrefix + 'size-auto-observer';
|
|
var _classNameResizeObserverElement = _cassNamesPrefix + 'resize-observer';
|
|
var _classNameResizeObserverItemElement = _cassNamesPrefix + 'resize-observer-item';
|
|
var _classNameResizeObserverItemFinalElement = _classNameResizeObserverItemElement + '-final';
|
|
var _classNameTextInherit = _cassNamesPrefix + 'text-inherit';
|
|
var _classNameScrollbar = _cassNamesPrefix + _strScrollbar;
|
|
var _classNameScrollbarTrack = _classNameScrollbar + '-track';
|
|
var _classNameScrollbarTrackOff = _classNameScrollbarTrack + '-off';
|
|
var _classNameScrollbarHandle = _classNameScrollbar + '-handle';
|
|
var _classNameScrollbarHandleOff = _classNameScrollbarHandle + '-off';
|
|
var _classNameScrollbarUnusable = _classNameScrollbar + '-unusable';
|
|
var _classNameScrollbarAutoHidden = _classNameScrollbar + '-' + _strAuto + _strMinusHidden;
|
|
var _classNameScrollbarCorner = _classNameScrollbar + '-corner';
|
|
var _classNameScrollbarCornerResize = _classNameScrollbarCorner + '-resize';
|
|
var _classNameScrollbarCornerResizeB = _classNameScrollbarCornerResize + '-both';
|
|
var _classNameScrollbarCornerResizeH = _classNameScrollbarCornerResize + _strMinusHorizontal;
|
|
var _classNameScrollbarCornerResizeV = _classNameScrollbarCornerResize + _strMinusVertical;
|
|
var _classNameScrollbarHorizontal = _classNameScrollbar + _strMinusHorizontal;
|
|
var _classNameScrollbarVertical = _classNameScrollbar + _strMinusVertical;
|
|
var _classNameDragging = _cassNamesPrefix + 'dragging';
|
|
var _classNameThemeNone = _cassNamesPrefix + 'theme-none';
|
|
var _classNamesDynamicDestroy = [
|
|
_classNameViewportNativeScrollbarsInvisible,
|
|
_classNameViewportNativeScrollbarsOverlaid,
|
|
_classNameScrollbarTrackOff,
|
|
_classNameScrollbarHandleOff,
|
|
_classNameScrollbarUnusable,
|
|
_classNameScrollbarAutoHidden,
|
|
_classNameScrollbarCornerResize,
|
|
_classNameScrollbarCornerResizeB,
|
|
_classNameScrollbarCornerResizeH,
|
|
_classNameScrollbarCornerResizeV,
|
|
_classNameDragging].join(_strSpace);
|
|
|
|
//callbacks:
|
|
var _callbacksInitQeueue = [];
|
|
|
|
//attrs viewport shall inherit from target
|
|
var _viewportAttrsFromTarget = [LEXICON.ti];
|
|
|
|
//options:
|
|
var _defaultOptions;
|
|
var _currentOptions;
|
|
var _currentPreparedOptions;
|
|
|
|
//extensions:
|
|
var _extensions = {};
|
|
var _extensionsPrivateMethods = 'added removed on contract';
|
|
|
|
//update
|
|
var _lastUpdateTime;
|
|
var _swallowedUpdateHints = {};
|
|
var _swallowedUpdateTimeout;
|
|
var _swallowUpdateLag = 42;
|
|
var _updateOnLoadEventName = 'load';
|
|
var _updateOnLoadElms = [];
|
|
|
|
//DOM elements:
|
|
var _windowElement;
|
|
var _documentElement;
|
|
var _htmlElement;
|
|
var _bodyElement;
|
|
var _targetElement; //the target element of this OverlayScrollbars object
|
|
var _hostElement; //the host element of this OverlayScrollbars object -> may be the same as targetElement
|
|
var _sizeAutoObserverElement; //observes size auto changes
|
|
var _sizeObserverElement; //observes size and padding changes
|
|
var _paddingElement; //manages the padding
|
|
var _viewportElement; //is the viewport of our scrollbar model
|
|
var _contentElement; //the element which holds the content
|
|
var _contentArrangeElement; //is needed for correct sizing of the content element (only if native scrollbars are overlays)
|
|
var _contentGlueElement; //has always the size of the content element
|
|
var _textareaCoverElement; //only applied if target is a textarea element. Used for correct size calculation and for prevention of uncontrolled scrolling
|
|
var _scrollbarCornerElement;
|
|
var _scrollbarHorizontalElement;
|
|
var _scrollbarHorizontalTrackElement;
|
|
var _scrollbarHorizontalHandleElement;
|
|
var _scrollbarVerticalElement;
|
|
var _scrollbarVerticalTrackElement;
|
|
var _scrollbarVerticalHandleElement;
|
|
var _windowElementNative;
|
|
var _documentElementNative;
|
|
var _targetElementNative;
|
|
var _hostElementNative;
|
|
var _sizeAutoObserverElementNative;
|
|
var _sizeObserverElementNative;
|
|
var _paddingElementNative;
|
|
var _viewportElementNative;
|
|
var _contentElementNative;
|
|
|
|
//Cache:
|
|
var _hostSizeCache;
|
|
var _contentScrollSizeCache;
|
|
var _arrangeContentSizeCache;
|
|
var _hasOverflowCache;
|
|
var _hideOverflowCache;
|
|
var _widthAutoCache;
|
|
var _heightAutoCache;
|
|
var _cssBoxSizingCache;
|
|
var _cssPaddingCache;
|
|
var _cssBorderCache;
|
|
var _cssMarginCache;
|
|
var _cssDirectionCache;
|
|
var _cssDirectionDetectedCache;
|
|
var _paddingAbsoluteCache;
|
|
var _clipAlwaysCache;
|
|
var _contentGlueSizeCache;
|
|
var _overflowBehaviorCache;
|
|
var _overflowAmountCache;
|
|
var _ignoreOverlayScrollbarHidingCache;
|
|
var _autoUpdateCache;
|
|
var _sizeAutoCapableCache;
|
|
var _contentElementScrollSizeChangeDetectedCache;
|
|
var _hostElementSizeChangeDetectedCache;
|
|
var _scrollbarsVisibilityCache;
|
|
var _scrollbarsAutoHideCache;
|
|
var _scrollbarsClickScrollingCache;
|
|
var _scrollbarsDragScrollingCache;
|
|
var _resizeCache;
|
|
var _normalizeRTLCache;
|
|
var _classNameCache;
|
|
var _oldClassName;
|
|
var _textareaAutoWrappingCache;
|
|
var _textareaInfoCache;
|
|
var _textareaSizeCache;
|
|
var _textareaDynHeightCache;
|
|
var _textareaDynWidthCache;
|
|
var _bodyMinSizeCache;
|
|
var _updateAutoCache = {};
|
|
|
|
//MutationObserver:
|
|
var _mutationObserverHost;
|
|
var _mutationObserverContent;
|
|
var _mutationObserverHostCallback;
|
|
var _mutationObserverContentCallback;
|
|
var _mutationObserversConnected;
|
|
var _mutationObserverAttrsTextarea = ['wrap', 'cols', 'rows'];
|
|
var _mutationObserverAttrsHost = [LEXICON.i, LEXICON.c, LEXICON.s, 'open'].concat(_viewportAttrsFromTarget);
|
|
|
|
//events:
|
|
var _destroyEvents = [];
|
|
|
|
//textarea:
|
|
var _textareaHasFocus;
|
|
|
|
//scrollbars:
|
|
var _scrollbarsAutoHideTimeoutId;
|
|
var _scrollbarsAutoHideMoveTimeoutId;
|
|
var _scrollbarsAutoHideDelay;
|
|
var _scrollbarsAutoHideNever;
|
|
var _scrollbarsAutoHideScroll;
|
|
var _scrollbarsAutoHideMove;
|
|
var _scrollbarsAutoHideLeave;
|
|
var _scrollbarsHandleHovered;
|
|
var _scrollbarsHandlesDefineScrollPos;
|
|
|
|
//resize
|
|
var _resizeNone;
|
|
var _resizeBoth;
|
|
var _resizeHorizontal;
|
|
var _resizeVertical;
|
|
|
|
|
|
//==== Event Listener ====//
|
|
|
|
/**
|
|
* Adds or removes a event listener from the given element.
|
|
* @param element The element to which the event listener shall be applied or removed.
|
|
* @param eventNames The name(s) of the events.
|
|
* @param listener The method which shall be called.
|
|
* @param remove True if the handler shall be removed, false or undefined if the handler shall be added.
|
|
* @param passiveOrOptions The options for the event.
|
|
*/
|
|
function setupResponsiveEventListener(element, eventNames, listener, remove, passiveOrOptions) {
|
|
var collected = COMPATIBILITY.isA(eventNames) && COMPATIBILITY.isA(listener);
|
|
var method = remove ? 'removeEventListener' : 'addEventListener';
|
|
var onOff = remove ? 'off' : 'on';
|
|
var events = collected ? false : eventNames.split(_strSpace)
|
|
var i = 0;
|
|
|
|
var passiveOrOptionsIsObj = FRAMEWORK.isPlainObject(passiveOrOptions);
|
|
var passive = (_supportPassiveEvents && (passiveOrOptionsIsObj ? (passiveOrOptions._passive) : passiveOrOptions)) || false;
|
|
var capture = passiveOrOptionsIsObj && (passiveOrOptions._capture || false);
|
|
var nativeParam = _supportPassiveEvents ? {
|
|
passive: passive,
|
|
capture: capture,
|
|
} : capture;
|
|
|
|
if (collected) {
|
|
for (; i < eventNames[LEXICON.l]; i++)
|
|
setupResponsiveEventListener(element, eventNames[i], listener[i], remove, passiveOrOptions);
|
|
}
|
|
else {
|
|
for (; i < events[LEXICON.l]; i++) {
|
|
if(_supportPassiveEvents) {
|
|
element[0][method](events[i], listener, nativeParam);
|
|
}
|
|
else {
|
|
element[onOff](events[i], listener);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
function addDestroyEventListener(element, eventNames, listener, passive) {
|
|
setupResponsiveEventListener(element, eventNames, listener, false, passive);
|
|
_destroyEvents.push(COMPATIBILITY.bind(setupResponsiveEventListener, 0, element, eventNames, listener, true, passive));
|
|
}
|
|
|
|
//==== Resize Observer ====//
|
|
|
|
/**
|
|
* Adds or removes a resize observer from the given element.
|
|
* @param targetElement The element to which the resize observer shall be added or removed.
|
|
* @param onElementResizedCallback The callback which is fired every time the resize observer registers a size change or false / undefined if the resizeObserver shall be removed.
|
|
*/
|
|
function setupResizeObserver(targetElement, onElementResizedCallback) {
|
|
if (targetElement) {
|
|
var resizeObserver = COMPATIBILITY.rO();
|
|
var strAnimationStartEvent = 'animationstart mozAnimationStart webkitAnimationStart MSAnimationStart';
|
|
var strChildNodes = 'childNodes';
|
|
var constScroll = 3333333;
|
|
var callback = function () {
|
|
targetElement[_strScrollTop](constScroll)[_strScrollLeft](_isRTL ? _rtlScrollBehavior.n ? -constScroll : _rtlScrollBehavior.i ? 0 : constScroll : constScroll);
|
|
onElementResizedCallback();
|
|
};
|
|
//add resize observer:
|
|
if (onElementResizedCallback) {
|
|
if (_supportResizeObserver) {
|
|
var element = targetElement.addClass('observed').append(generateDiv(_classNameResizeObserverElement)).contents()[0];
|
|
var observer = element[_strResizeObserverProperty] = new resizeObserver(callback);
|
|
observer.observe(element);
|
|
}
|
|
else {
|
|
if (_msieVersion > 9 || !_autoUpdateRecommended) {
|
|
targetElement.prepend(
|
|
generateDiv(_classNameResizeObserverElement,
|
|
generateDiv({ c: _classNameResizeObserverItemElement, dir: 'ltr' },
|
|
generateDiv(_classNameResizeObserverItemElement,
|
|
generateDiv(_classNameResizeObserverItemFinalElement)
|
|
) +
|
|
generateDiv(_classNameResizeObserverItemElement,
|
|
generateDiv({ c: _classNameResizeObserverItemFinalElement, style: 'width: 200%; height: 200%' })
|
|
)
|
|
)
|
|
)
|
|
);
|
|
|
|
var observerElement = targetElement[0][strChildNodes][0][strChildNodes][0];
|
|
var shrinkElement = FRAMEWORK(observerElement[strChildNodes][1]);
|
|
var expandElement = FRAMEWORK(observerElement[strChildNodes][0]);
|
|
var expandElementChild = FRAMEWORK(expandElement[0][strChildNodes][0]);
|
|
var widthCache = observerElement[LEXICON.oW];
|
|
var heightCache = observerElement[LEXICON.oH];
|
|
var isDirty;
|
|
var rAFId;
|
|
var currWidth;
|
|
var currHeight;
|
|
var factor = 2;
|
|
var nativeScrollbarSize = globals.nativeScrollbarSize; //care don't make changes to this object!!!
|
|
var reset = function () {
|
|
/*
|
|
var sizeResetWidth = observerElement[LEXICON.oW] + nativeScrollbarSize.x * factor + nativeScrollbarSize.y * factor + _overlayScrollbarDummySize.x + _overlayScrollbarDummySize.y;
|
|
var sizeResetHeight = observerElement[LEXICON.oH] + nativeScrollbarSize.x * factor + nativeScrollbarSize.y * factor + _overlayScrollbarDummySize.x + _overlayScrollbarDummySize.y;
|
|
var expandChildCSS = {};
|
|
expandChildCSS[_strWidth] = sizeResetWidth;
|
|
expandChildCSS[_strHeight] = sizeResetHeight;
|
|
expandElementChild.css(expandChildCSS);
|
|
|
|
|
|
expandElement[_strScrollLeft](sizeResetWidth)[_strScrollTop](sizeResetHeight);
|
|
shrinkElement[_strScrollLeft](sizeResetWidth)[_strScrollTop](sizeResetHeight);
|
|
*/
|
|
expandElement[_strScrollLeft](constScroll)[_strScrollTop](constScroll);
|
|
shrinkElement[_strScrollLeft](constScroll)[_strScrollTop](constScroll);
|
|
};
|
|
var onResized = function () {
|
|
rAFId = 0;
|
|
if (!isDirty)
|
|
return;
|
|
|
|
widthCache = currWidth;
|
|
heightCache = currHeight;
|
|
callback();
|
|
};
|
|
var onScroll = function (event) {
|
|
currWidth = observerElement[LEXICON.oW];
|
|
currHeight = observerElement[LEXICON.oH];
|
|
isDirty = currWidth != widthCache || currHeight != heightCache;
|
|
|
|
if (event && isDirty && !rAFId) {
|
|
COMPATIBILITY.cAF()(rAFId);
|
|
rAFId = COMPATIBILITY.rAF()(onResized);
|
|
}
|
|
else if (!event)
|
|
onResized();
|
|
|
|
reset();
|
|
if (event) {
|
|
COMPATIBILITY.prvD(event);
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
return false;
|
|
};
|
|
var expandChildCSS = {};
|
|
var observerElementCSS = {};
|
|
|
|
setTopRightBottomLeft(observerElementCSS, _strEmpty, [
|
|
-((nativeScrollbarSize.y + 1) * factor),
|
|
nativeScrollbarSize.x * -factor,
|
|
nativeScrollbarSize.y * -factor,
|
|
-((nativeScrollbarSize.x + 1) * factor)
|
|
]);
|
|
|
|
FRAMEWORK(observerElement).css(observerElementCSS);
|
|
expandElement.on(_strScroll, onScroll);
|
|
shrinkElement.on(_strScroll, onScroll);
|
|
targetElement.on(strAnimationStartEvent, function () {
|
|
onScroll(false);
|
|
});
|
|
//lets assume that the divs will never be that large and a constant value is enough
|
|
expandChildCSS[_strWidth] = constScroll;
|
|
expandChildCSS[_strHeight] = constScroll;
|
|
expandElementChild.css(expandChildCSS);
|
|
|
|
reset();
|
|
}
|
|
else {
|
|
var attachEvent = _documentElementNative.attachEvent;
|
|
var isIE = _msieVersion !== undefined;
|
|
if (attachEvent) {
|
|
targetElement.prepend(generateDiv(_classNameResizeObserverElement));
|
|
findFirst(targetElement, _strDot + _classNameResizeObserverElement)[0].attachEvent('onresize', callback);
|
|
}
|
|
else {
|
|
var obj = _documentElementNative.createElement(TYPES.o);
|
|
obj.setAttribute(LEXICON.ti, '-1');
|
|
obj.setAttribute(LEXICON.c, _classNameResizeObserverElement);
|
|
obj.onload = function () {
|
|
var wnd = this.contentDocument.defaultView;
|
|
wnd.addEventListener('resize', callback);
|
|
wnd.document.documentElement.style.display = 'none';
|
|
};
|
|
obj.type = 'text/html';
|
|
if (isIE)
|
|
targetElement.prepend(obj);
|
|
obj.data = 'about:blank';
|
|
if (!isIE)
|
|
targetElement.prepend(obj);
|
|
targetElement.on(strAnimationStartEvent, callback);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (targetElement[0] === _sizeObserverElementNative) {
|
|
var directionChanged = function () {
|
|
var dir = _hostElement.css('direction');
|
|
var css = {};
|
|
var scrollLeftValue = 0;
|
|
var result = false;
|
|
if (dir !== _cssDirectionDetectedCache) {
|
|
if (dir === 'ltr') {
|
|
css[_strLeft] = 0;
|
|
css[_strRight] = _strAuto;
|
|
scrollLeftValue = constScroll;
|
|
}
|
|
else {
|
|
css[_strLeft] = _strAuto;
|
|
css[_strRight] = 0;
|
|
scrollLeftValue = _rtlScrollBehavior.n ? -constScroll : _rtlScrollBehavior.i ? 0 : constScroll;
|
|
}
|
|
//execution order is important for IE!!!
|
|
_sizeObserverElement.children().eq(0).css(css);
|
|
_sizeObserverElement[_strScrollLeft](scrollLeftValue)[_strScrollTop](constScroll);
|
|
_cssDirectionDetectedCache = dir;
|
|
result = true;
|
|
}
|
|
return result;
|
|
};
|
|
directionChanged();
|
|
addDestroyEventListener(targetElement, _strScroll, function (event) {
|
|
if (directionChanged())
|
|
update();
|
|
COMPATIBILITY.prvD(event);
|
|
COMPATIBILITY.stpP(event);
|
|
return false;
|
|
});
|
|
}
|
|
}
|
|
//remove resize observer:
|
|
else {
|
|
if (_supportResizeObserver) {
|
|
var element = targetElement.contents()[0];
|
|
var resizeObserverObj = element[_strResizeObserverProperty];
|
|
if (resizeObserverObj) {
|
|
resizeObserverObj.disconnect();
|
|
delete element[_strResizeObserverProperty];
|
|
}
|
|
}
|
|
else {
|
|
remove(targetElement.children(_strDot + _classNameResizeObserverElement).eq(0));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Freezes or unfreezes the given resize observer.
|
|
* @param targetElement The element to which the target resize observer is applied.
|
|
* @param freeze True if the resize observer shall be frozen, false otherwise.
|
|
|
|
function freezeResizeObserver(targetElement, freeze) {
|
|
if (targetElement !== undefined) {
|
|
if(freeze) {
|
|
if (_supportResizeObserver) {
|
|
var element = targetElement.contents()[0];
|
|
element[_strResizeObserverProperty].unobserve(element);
|
|
}
|
|
else {
|
|
targetElement = targetElement.children(_strDot + _classNameResizeObserverElement).eq(0);
|
|
var w = targetElement.css(_strWidth);
|
|
var h = targetElement.css(_strHeight);
|
|
var css = {};
|
|
css[_strWidth] = w;
|
|
css[_strHeight] = h;
|
|
targetElement.css(css);
|
|
}
|
|
}
|
|
else {
|
|
if (_supportResizeObserver) {
|
|
var element = targetElement.contents()[0];
|
|
element[_strResizeObserverProperty].observe(element);
|
|
}
|
|
else {
|
|
var css = { };
|
|
css[_strHeight] = _strEmpty;
|
|
css[_strWidth] = _strEmpty;
|
|
targetElement.children(_strDot + _classNameResizeObserverElement).eq(0).css(css);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
|
|
|
|
//==== Mutation Observers ====//
|
|
|
|
/**
|
|
* Creates MutationObservers for the host and content Element if they are supported.
|
|
*/
|
|
function createMutationObservers() {
|
|
if (_supportMutationObserver) {
|
|
var mutationObserverContentLag = 11;
|
|
var mutationObserver = COMPATIBILITY.mO();
|
|
var contentLastUpdate = COMPATIBILITY.now();
|
|
var mutationTarget;
|
|
var mutationAttrName;
|
|
var mutationIsClass;
|
|
var oldMutationVal;
|
|
var newClassVal;
|
|
var hostClassNameRegex;
|
|
var contentTimeout;
|
|
var now;
|
|
var sizeAuto;
|
|
var action;
|
|
|
|
_mutationObserverHostCallback = function (mutations) {
|
|
|
|
var doUpdate = false;
|
|
var doUpdateForce = false;
|
|
var mutation;
|
|
var mutatedAttrs = [];
|
|
|
|
if (_initialized && !_sleeping) {
|
|
each(mutations, function () {
|
|
mutation = this;
|
|
mutationTarget = mutation.target;
|
|
mutationAttrName = mutation.attributeName;
|
|
mutationIsClass = mutationAttrName === LEXICON.c;
|
|
oldMutationVal = mutation.oldValue;
|
|
newClassVal = mutationTarget.className;
|
|
|
|
if (_domExists && mutationIsClass && !doUpdateForce) {
|
|
// if old class value contains _classNameHostElementForeign and new class value doesn't
|
|
if (oldMutationVal.indexOf(_classNameHostElementForeign) > -1 && newClassVal.indexOf(_classNameHostElementForeign) < 0) {
|
|
hostClassNameRegex = createHostClassNameRegExp(true);
|
|
_hostElementNative.className = newClassVal.split(_strSpace).concat(oldMutationVal.split(_strSpace).filter(function (name) {
|
|
return name.match(hostClassNameRegex);
|
|
})).join(_strSpace);
|
|
doUpdate = doUpdateForce = true;
|
|
}
|
|
}
|
|
|
|
if (!doUpdate) {
|
|
doUpdate = mutationIsClass
|
|
? hostClassNamesChanged(oldMutationVal, newClassVal)
|
|
: mutationAttrName === LEXICON.s
|
|
? oldMutationVal !== mutationTarget[LEXICON.s].cssText
|
|
: true;
|
|
}
|
|
|
|
mutatedAttrs.push(mutationAttrName);
|
|
});
|
|
|
|
updateViewportAttrsFromTarget(mutatedAttrs);
|
|
|
|
if (doUpdate)
|
|
_base.update(doUpdateForce || _strAuto);
|
|
}
|
|
return doUpdate;
|
|
};
|
|
_mutationObserverContentCallback = function (mutations) {
|
|
var doUpdate = false;
|
|
var mutation;
|
|
|
|
if (_initialized && !_sleeping) {
|
|
each(mutations, function () {
|
|
mutation = this;
|
|
doUpdate = isUnknownMutation(mutation);
|
|
return !doUpdate;
|
|
});
|
|
|
|
if (doUpdate) {
|
|
now = COMPATIBILITY.now();
|
|
sizeAuto = (_heightAutoCache || _widthAutoCache);
|
|
action = function () {
|
|
if (!_destroyed) {
|
|
contentLastUpdate = now;
|
|
|
|
//if cols, rows or wrap attr was changed
|
|
if (_isTextarea)
|
|
textareaUpdate();
|
|
|
|
if (sizeAuto)
|
|
update();
|
|
else
|
|
_base.update(_strAuto);
|
|
}
|
|
};
|
|
clearTimeout(contentTimeout);
|
|
if (mutationObserverContentLag <= 0 || now - contentLastUpdate > mutationObserverContentLag || !sizeAuto)
|
|
action();
|
|
else
|
|
contentTimeout = setTimeout(action, mutationObserverContentLag);
|
|
}
|
|
}
|
|
return doUpdate;
|
|
}
|
|
|
|
_mutationObserverHost = new mutationObserver(_mutationObserverHostCallback);
|
|
_mutationObserverContent = new mutationObserver(_mutationObserverContentCallback);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Connects the MutationObservers if they are supported.
|
|
*/
|
|
function connectMutationObservers() {
|
|
if (_supportMutationObserver && !_mutationObserversConnected) {
|
|
_mutationObserverHost.observe(_hostElementNative, {
|
|
attributes: true,
|
|
attributeOldValue: true,
|
|
attributeFilter: _mutationObserverAttrsHost
|
|
});
|
|
|
|
_mutationObserverContent.observe(_isTextarea ? _targetElementNative : _contentElementNative, {
|
|
attributes: true,
|
|
attributeOldValue: true,
|
|
subtree: !_isTextarea,
|
|
childList: !_isTextarea,
|
|
characterData: !_isTextarea,
|
|
attributeFilter: _isTextarea ? _mutationObserverAttrsTextarea : _mutationObserverAttrsHost
|
|
});
|
|
|
|
_mutationObserversConnected = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Disconnects the MutationObservers if they are supported.
|
|
*/
|
|
function disconnectMutationObservers() {
|
|
if (_supportMutationObserver && _mutationObserversConnected) {
|
|
_mutationObserverHost.disconnect();
|
|
_mutationObserverContent.disconnect();
|
|
|
|
_mutationObserversConnected = false;
|
|
}
|
|
}
|
|
|
|
|
|
//==== Events of elements ====//
|
|
|
|
/**
|
|
* This method gets called every time the host element gets resized. IMPORTANT: Padding changes are detected too!!
|
|
* It refreshes the hostResizedEventArgs and the hostSizeResizeCache.
|
|
* If there are any size changes, the update method gets called.
|
|
*/
|
|
function hostOnResized() {
|
|
if (!_sleeping) {
|
|
var changed;
|
|
var hostSize = {
|
|
w: _sizeObserverElementNative[LEXICON.sW],
|
|
h: _sizeObserverElementNative[LEXICON.sH]
|
|
};
|
|
|
|
changed = checkCache(hostSize, _hostElementSizeChangeDetectedCache);
|
|
_hostElementSizeChangeDetectedCache = hostSize;
|
|
if (changed)
|
|
update({ _hostSizeChanged: true });
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The mouse enter event of the host element. This event is only needed for the autoHide feature.
|
|
*/
|
|
function hostOnMouseEnter() {
|
|
if (_scrollbarsAutoHideLeave)
|
|
refreshScrollbarsAutoHide(true);
|
|
}
|
|
|
|
/**
|
|
* The mouse leave event of the host element. This event is only needed for the autoHide feature.
|
|
*/
|
|
function hostOnMouseLeave() {
|
|
if (_scrollbarsAutoHideLeave && !_bodyElement.hasClass(_classNameDragging))
|
|
refreshScrollbarsAutoHide(false);
|
|
}
|
|
|
|
/**
|
|
* The mouse move event of the host element. This event is only needed for the autoHide "move" feature.
|
|
*/
|
|
function hostOnMouseMove() {
|
|
if (_scrollbarsAutoHideMove) {
|
|
refreshScrollbarsAutoHide(true);
|
|
clearTimeout(_scrollbarsAutoHideMoveTimeoutId);
|
|
_scrollbarsAutoHideMoveTimeoutId = setTimeout(function () {
|
|
if (_scrollbarsAutoHideMove && !_destroyed)
|
|
refreshScrollbarsAutoHide(false);
|
|
}, 100);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prevents text from deselection if attached to the document element on the mousedown event of a DOM element.
|
|
* @param event The select start event.
|
|
*/
|
|
function documentOnSelectStart(event) {
|
|
COMPATIBILITY.prvD(event);
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* A callback which will be called after a element has loaded.
|
|
*/
|
|
function updateOnLoadCallback(event) {
|
|
var elm = FRAMEWORK(event.target);
|
|
|
|
eachUpdateOnLoad(function (i, updateOnLoadSelector) {
|
|
if (elm.is(updateOnLoadSelector)) {
|
|
update({ _contentSizeChanged: true });
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Adds or removes mouse & touch events of the host element. (for handling auto-hiding of the scrollbars)
|
|
* @param destroy Indicates whether the events shall be added or removed.
|
|
*/
|
|
function setupHostMouseTouchEvents(destroy) {
|
|
if (!destroy)
|
|
setupHostMouseTouchEvents(true);
|
|
|
|
setupResponsiveEventListener(_hostElement,
|
|
_strMouseTouchMoveEvent.split(_strSpace)[0],
|
|
hostOnMouseMove,
|
|
(!_scrollbarsAutoHideMove || destroy), true);
|
|
setupResponsiveEventListener(_hostElement,
|
|
[_strMouseEnter, _strMouseLeave],
|
|
[hostOnMouseEnter, hostOnMouseLeave],
|
|
(!_scrollbarsAutoHideLeave || destroy), true);
|
|
|
|
//if the plugin is initialized and the mouse is over the host element, make the scrollbars visible
|
|
if (!_initialized && !destroy)
|
|
_hostElement.one('mouseover', hostOnMouseEnter);
|
|
}
|
|
|
|
|
|
//==== Update Detection ====//
|
|
|
|
/**
|
|
* Measures the min width and min height of the body element and refreshes the related cache.
|
|
* @returns {boolean} True if the min width or min height has changed, false otherwise.
|
|
*/
|
|
function bodyMinSizeChanged() {
|
|
var bodyMinSize = {};
|
|
if (_isBody && _contentArrangeElement) {
|
|
bodyMinSize.w = parseToZeroOrNumber(_contentArrangeElement.css(_strMinMinus + _strWidth));
|
|
bodyMinSize.h = parseToZeroOrNumber(_contentArrangeElement.css(_strMinMinus + _strHeight));
|
|
bodyMinSize.c = checkCache(bodyMinSize, _bodyMinSizeCache);
|
|
bodyMinSize.f = true; //flag for "measured at least once"
|
|
}
|
|
_bodyMinSizeCache = bodyMinSize;
|
|
return !!bodyMinSize.c;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the class names really changed (new class without plugin host prefix)
|
|
* @param oldClassNames The old ClassName string or array.
|
|
* @param newClassNames The new ClassName string or array.
|
|
* @returns {boolean} True if the class names has really changed, false otherwise.
|
|
*/
|
|
function hostClassNamesChanged(oldClassNames, newClassNames) {
|
|
var currClasses = typeof newClassNames == TYPES.s ? newClassNames.split(_strSpace) : [];
|
|
var oldClasses = typeof oldClassNames == TYPES.s ? oldClassNames.split(_strSpace) : [];
|
|
var diff = getArrayDifferences(oldClasses, currClasses);
|
|
|
|
// remove none theme from diff list to prevent update
|
|
var idx = inArray(_classNameThemeNone, diff);
|
|
var i;
|
|
var regex;
|
|
|
|
if (idx > -1)
|
|
diff.splice(idx, 1);
|
|
|
|
if (diff[LEXICON.l] > 0) {
|
|
regex = createHostClassNameRegExp(true, true);
|
|
for (i = 0; i < diff.length; i++) {
|
|
if (!diff[i].match(regex)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given mutation is not from a from the plugin generated element. If the target element is a textarea the mutation is always unknown.
|
|
* @param mutation The mutation which shall be checked.
|
|
* @returns {boolean} True if the mutation is from a unknown element, false otherwise.
|
|
*/
|
|
function isUnknownMutation(mutation) {
|
|
var attributeName = mutation.attributeName;
|
|
var mutationTarget = mutation.target;
|
|
var mutationType = mutation.type;
|
|
var strClosest = 'closest';
|
|
|
|
if (mutationTarget === _contentElementNative)
|
|
return attributeName === null;
|
|
if (mutationType === 'attributes' && (attributeName === LEXICON.c || attributeName === LEXICON.s) && !_isTextarea) {
|
|
//ignore className changes by the plugin
|
|
if (attributeName === LEXICON.c && FRAMEWORK(mutationTarget).hasClass(_classNameHostElement))
|
|
return hostClassNamesChanged(mutation.oldValue, mutationTarget.className);
|
|
|
|
//only do it of browser support it natively
|
|
if (typeof mutationTarget[strClosest] != TYPES.f)
|
|
return true;
|
|
if (mutationTarget[strClosest](_strDot + _classNameResizeObserverElement) !== null ||
|
|
mutationTarget[strClosest](_strDot + _classNameScrollbar) !== null ||
|
|
mutationTarget[strClosest](_strDot + _classNameScrollbarCorner) !== null)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the content size was changed since the last time this method was called.
|
|
* @returns {boolean} True if the content size was changed, false otherwise.
|
|
*/
|
|
function updateAutoContentSizeChanged() {
|
|
if (_sleeping)
|
|
return false;
|
|
|
|
var contentMeasureElement = getContentMeasureElement();
|
|
var textareaValueLength = _isTextarea && _widthAutoCache && !_textareaAutoWrappingCache ? _targetElement.val().length : 0;
|
|
var setCSS = !_mutationObserversConnected && _widthAutoCache && !_isTextarea;
|
|
var css = {};
|
|
var float;
|
|
var bodyMinSizeC;
|
|
var changed;
|
|
var contentElementScrollSize;
|
|
|
|
if (setCSS) {
|
|
float = _contentElement.css(_strFloat);
|
|
css[_strFloat] = _isRTL ? _strRight : _strLeft;
|
|
css[_strWidth] = _strAuto;
|
|
_contentElement.css(css);
|
|
}
|
|
contentElementScrollSize = {
|
|
w: contentMeasureElement[LEXICON.sW] + textareaValueLength,
|
|
h: contentMeasureElement[LEXICON.sH] + textareaValueLength
|
|
};
|
|
if (setCSS) {
|
|
css[_strFloat] = float;
|
|
css[_strWidth] = _strHundredPercent;
|
|
_contentElement.css(css);
|
|
}
|
|
|
|
bodyMinSizeC = bodyMinSizeChanged();
|
|
changed = checkCache(contentElementScrollSize, _contentElementScrollSizeChangeDetectedCache);
|
|
|
|
_contentElementScrollSizeChangeDetectedCache = contentElementScrollSize;
|
|
|
|
return changed || bodyMinSizeC;
|
|
}
|
|
|
|
/**
|
|
* Returns true when a attribute which the MutationObserver would observe has changed.
|
|
* @returns {boolean} True if one of the attributes which a MutationObserver would observe has changed, false or undefined otherwise.
|
|
*/
|
|
function meaningfulAttrsChanged() {
|
|
if (_sleeping || _mutationObserversConnected)
|
|
return;
|
|
|
|
var elem;
|
|
var curr;
|
|
var cache;
|
|
var changedAttrs = [];
|
|
var checks = [
|
|
{
|
|
_elem: _hostElement,
|
|
_attrs: _mutationObserverAttrsHost.concat(':visible')
|
|
},
|
|
{
|
|
_elem: _isTextarea ? _targetElement : undefined,
|
|
_attrs: _mutationObserverAttrsTextarea
|
|
}
|
|
];
|
|
|
|
each(checks, function (index, check) {
|
|
elem = check._elem;
|
|
if (elem) {
|
|
each(check._attrs, function (index, attr) {
|
|
curr = attr.charAt(0) === ':' ? elem.is(attr) : elem.attr(attr);
|
|
cache = _updateAutoCache[attr];
|
|
|
|
if (checkCache(curr, cache)) {
|
|
changedAttrs.push(attr);
|
|
}
|
|
|
|
_updateAutoCache[attr] = curr;
|
|
});
|
|
}
|
|
});
|
|
|
|
updateViewportAttrsFromTarget(changedAttrs);
|
|
|
|
return changedAttrs[LEXICON.l] > 0;
|
|
}
|
|
|
|
/**
|
|
* Checks is a CSS Property of a child element is affecting the scroll size of the content.
|
|
* @param propertyName The CSS property name.
|
|
* @returns {boolean} True if the property is affecting the content scroll size, false otherwise.
|
|
*/
|
|
function isSizeAffectingCSSProperty(propertyName) {
|
|
if (!_initialized)
|
|
return true;
|
|
var flexGrow = 'flex-grow';
|
|
var flexShrink = 'flex-shrink';
|
|
var flexBasis = 'flex-basis';
|
|
var affectingPropsX = [
|
|
_strWidth,
|
|
_strMinMinus + _strWidth,
|
|
_strMaxMinus + _strWidth,
|
|
_strMarginMinus + _strLeft,
|
|
_strMarginMinus + _strRight,
|
|
_strLeft,
|
|
_strRight,
|
|
'font-weight',
|
|
'word-spacing',
|
|
flexGrow,
|
|
flexShrink,
|
|
flexBasis
|
|
];
|
|
var affectingPropsXContentBox = [
|
|
_strPaddingMinus + _strLeft,
|
|
_strPaddingMinus + _strRight,
|
|
_strBorderMinus + _strLeft + _strWidth,
|
|
_strBorderMinus + _strRight + _strWidth
|
|
];
|
|
var affectingPropsY = [
|
|
_strHeight,
|
|
_strMinMinus + _strHeight,
|
|
_strMaxMinus + _strHeight,
|
|
_strMarginMinus + _strTop,
|
|
_strMarginMinus + _strBottom,
|
|
_strTop,
|
|
_strBottom,
|
|
'line-height',
|
|
flexGrow,
|
|
flexShrink,
|
|
flexBasis
|
|
];
|
|
var affectingPropsYContentBox = [
|
|
_strPaddingMinus + _strTop,
|
|
_strPaddingMinus + _strBottom,
|
|
_strBorderMinus + _strTop + _strWidth,
|
|
_strBorderMinus + _strBottom + _strWidth
|
|
];
|
|
var _strS = 's';
|
|
var _strVS = 'v-s';
|
|
var checkX = _overflowBehaviorCache.x === _strS || _overflowBehaviorCache.x === _strVS;
|
|
var checkY = _overflowBehaviorCache.y === _strS || _overflowBehaviorCache.y === _strVS;
|
|
var sizeIsAffected = false;
|
|
var checkPropertyName = function (arr, name) {
|
|
for (var i = 0; i < arr[LEXICON.l]; i++) {
|
|
if (arr[i] === name)
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
if (checkY) {
|
|
sizeIsAffected = checkPropertyName(affectingPropsY, propertyName);
|
|
if (!sizeIsAffected && !_isBorderBox)
|
|
sizeIsAffected = checkPropertyName(affectingPropsYContentBox, propertyName);
|
|
}
|
|
if (checkX && !sizeIsAffected) {
|
|
sizeIsAffected = checkPropertyName(affectingPropsX, propertyName);
|
|
if (!sizeIsAffected && !_isBorderBox)
|
|
sizeIsAffected = checkPropertyName(affectingPropsXContentBox, propertyName);
|
|
}
|
|
return sizeIsAffected;
|
|
}
|
|
|
|
|
|
//==== Update ====//
|
|
|
|
/**
|
|
* Sets the attribute values of the viewport element to the values from the target element.
|
|
* The value of a attribute is only set if the attribute is whitelisted.
|
|
* @attrs attrs The array of attributes which shall be set or undefined if all whitelisted shall be set.
|
|
*/
|
|
function updateViewportAttrsFromTarget(attrs) {
|
|
attrs = attrs || _viewportAttrsFromTarget;
|
|
each(attrs, function (index, attr) {
|
|
if (COMPATIBILITY.inA(attr, _viewportAttrsFromTarget) > -1) {
|
|
var targetAttr = _targetElement.attr(attr);
|
|
if (type(targetAttr) == TYPES.s) {
|
|
_viewportElement.attr(attr, targetAttr);
|
|
}
|
|
else {
|
|
_viewportElement.removeAttr(attr);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Updates the variables and size of the textarea element, and manages the scroll on new line or new character.
|
|
*/
|
|
function textareaUpdate() {
|
|
if (!_sleeping) {
|
|
var wrapAttrOff = !_textareaAutoWrappingCache;
|
|
var minWidth = _viewportSize.w;
|
|
var minHeight = _viewportSize.h;
|
|
var css = {};
|
|
var doMeasure = _widthAutoCache || wrapAttrOff;
|
|
var origWidth;
|
|
var width;
|
|
var origHeight;
|
|
var height;
|
|
|
|
//reset min size
|
|
css[_strMinMinus + _strWidth] = _strEmpty;
|
|
css[_strMinMinus + _strHeight] = _strEmpty;
|
|
|
|
//set width auto
|
|
css[_strWidth] = _strAuto;
|
|
_targetElement.css(css);
|
|
|
|
//measure width
|
|
origWidth = _targetElementNative[LEXICON.oW];
|
|
width = doMeasure ? MATH.max(origWidth, _targetElementNative[LEXICON.sW] - 1) : 1;
|
|
/*width += (_widthAutoCache ? _marginX + (!_isBorderBox ? wrapAttrOff ? 0 : _paddingX + _borderX : 0) : 0);*/
|
|
|
|
//set measured width
|
|
css[_strWidth] = _widthAutoCache ? _strAuto /*width*/ : _strHundredPercent;
|
|
css[_strMinMinus + _strWidth] = _strHundredPercent;
|
|
|
|
//set height auto
|
|
css[_strHeight] = _strAuto;
|
|
_targetElement.css(css);
|
|
|
|
//measure height
|
|
origHeight = _targetElementNative[LEXICON.oH];
|
|
height = MATH.max(origHeight, _targetElementNative[LEXICON.sH] - 1);
|
|
|
|
//append correct size values
|
|
css[_strWidth] = width;
|
|
css[_strHeight] = height;
|
|
_textareaCoverElement.css(css);
|
|
|
|
//apply min width / min height to prevent textarea collapsing
|
|
css[_strMinMinus + _strWidth] = minWidth /*+ (!_isBorderBox && _widthAutoCache ? _paddingX + _borderX : 0)*/;
|
|
css[_strMinMinus + _strHeight] = minHeight /*+ (!_isBorderBox && _heightAutoCache ? _paddingY + _borderY : 0)*/;
|
|
_targetElement.css(css);
|
|
|
|
return {
|
|
_originalWidth: origWidth,
|
|
_originalHeight: origHeight,
|
|
_dynamicWidth: width,
|
|
_dynamicHeight: height
|
|
};
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Updates the plugin and DOM to the current options.
|
|
* This method should only be called if a update is 100% required.
|
|
* @param updateHints A objects which contains hints for this update:
|
|
* {
|
|
* _hostSizeChanged : boolean,
|
|
* _contentSizeChanged : boolean,
|
|
* _force : boolean, == preventSwallowing
|
|
* _changedOptions : { }, == preventSwallowing && preventSleep
|
|
* }
|
|
*/
|
|
function update(updateHints) {
|
|
clearTimeout(_swallowedUpdateTimeout);
|
|
updateHints = updateHints || {};
|
|
_swallowedUpdateHints._hostSizeChanged |= updateHints._hostSizeChanged;
|
|
_swallowedUpdateHints._contentSizeChanged |= updateHints._contentSizeChanged;
|
|
_swallowedUpdateHints._force |= updateHints._force;
|
|
|
|
var now = COMPATIBILITY.now();
|
|
var hostSizeChanged = !!_swallowedUpdateHints._hostSizeChanged;
|
|
var contentSizeChanged = !!_swallowedUpdateHints._contentSizeChanged;
|
|
var force = !!_swallowedUpdateHints._force;
|
|
var changedOptions = updateHints._changedOptions;
|
|
var swallow = _swallowUpdateLag > 0 && _initialized && !_destroyed && !force && !changedOptions && (now - _lastUpdateTime) < _swallowUpdateLag && (!_heightAutoCache && !_widthAutoCache);
|
|
var displayIsHidden;
|
|
|
|
if (swallow)
|
|
_swallowedUpdateTimeout = setTimeout(update, _swallowUpdateLag);
|
|
|
|
//abort update due to:
|
|
//destroyed
|
|
//swallowing
|
|
//sleeping
|
|
//host is hidden or has false display
|
|
if (_destroyed || swallow || (_sleeping && !changedOptions) || (_initialized && !force && (displayIsHidden = _hostElement.is(':hidden'))) || _hostElement.css('display') === 'inline')
|
|
return;
|
|
|
|
_lastUpdateTime = now;
|
|
_swallowedUpdateHints = {};
|
|
|
|
//if scrollbar styling is possible and native scrollbars aren't overlaid the scrollbar styling will be applied which hides the native scrollbars completely.
|
|
if (_nativeScrollbarStyling && !(_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y)) {
|
|
//native scrollbars are hidden, so change the values to zero
|
|
_nativeScrollbarSize.x = 0;
|
|
_nativeScrollbarSize.y = 0;
|
|
}
|
|
else {
|
|
//refresh native scrollbar size (in case of zoom)
|
|
_nativeScrollbarSize = extendDeep({}, globals.nativeScrollbarSize);
|
|
}
|
|
|
|
// Scrollbar padding is needed for firefox, because firefox hides scrollbar automatically if the size of the div is too small.
|
|
// The calculation: [scrollbar size +3 *3]
|
|
// (+3 because of possible decoration e.g. borders, margins etc., but only if native scrollbar is NOT a overlaid scrollbar)
|
|
// (*3 because (1)increase / (2)decrease -button and (3)resize handle)
|
|
_nativeScrollbarMinSize = {
|
|
x: (_nativeScrollbarSize.x + (_nativeScrollbarIsOverlaid.x ? 0 : 3)) * 3,
|
|
y: (_nativeScrollbarSize.y + (_nativeScrollbarIsOverlaid.y ? 0 : 3)) * 3
|
|
};
|
|
|
|
changedOptions = changedOptions || {};
|
|
//freezeResizeObserver(_sizeObserverElement, true);
|
|
//freezeResizeObserver(_sizeAutoObserverElement, true);
|
|
|
|
var checkCacheAutoForce = function () {
|
|
return checkCache.apply(this, [].slice.call(arguments).concat([force]));
|
|
};
|
|
|
|
//save current scroll offset
|
|
var currScroll = {
|
|
x: _viewportElement[_strScrollLeft](),
|
|
y: _viewportElement[_strScrollTop]()
|
|
};
|
|
|
|
var currentPreparedOptionsScrollbars = _currentPreparedOptions.scrollbars;
|
|
var currentPreparedOptionsTextarea = _currentPreparedOptions.textarea;
|
|
|
|
//scrollbars visibility:
|
|
var scrollbarsVisibility = currentPreparedOptionsScrollbars.visibility;
|
|
var scrollbarsVisibilityChanged = checkCacheAutoForce(scrollbarsVisibility, _scrollbarsVisibilityCache);
|
|
|
|
//scrollbars autoHide:
|
|
var scrollbarsAutoHide = currentPreparedOptionsScrollbars.autoHide;
|
|
var scrollbarsAutoHideChanged = checkCacheAutoForce(scrollbarsAutoHide, _scrollbarsAutoHideCache);
|
|
|
|
//scrollbars click scrolling
|
|
var scrollbarsClickScrolling = currentPreparedOptionsScrollbars.clickScrolling;
|
|
var scrollbarsClickScrollingChanged = checkCacheAutoForce(scrollbarsClickScrolling, _scrollbarsClickScrollingCache);
|
|
|
|
//scrollbars drag scrolling
|
|
var scrollbarsDragScrolling = currentPreparedOptionsScrollbars.dragScrolling;
|
|
var scrollbarsDragScrollingChanged = checkCacheAutoForce(scrollbarsDragScrolling, _scrollbarsDragScrollingCache);
|
|
|
|
//className
|
|
var className = _currentPreparedOptions.className;
|
|
var classNameChanged = checkCacheAutoForce(className, _classNameCache);
|
|
|
|
//resize
|
|
var resize = _currentPreparedOptions.resize;
|
|
var resizeChanged = checkCacheAutoForce(resize, _resizeCache) && !_isBody; //body can't be resized since the window itself acts as resize possibility.
|
|
|
|
//paddingAbsolute
|
|
var paddingAbsolute = _currentPreparedOptions.paddingAbsolute;
|
|
var paddingAbsoluteChanged = checkCacheAutoForce(paddingAbsolute, _paddingAbsoluteCache);
|
|
|
|
//clipAlways
|
|
var clipAlways = _currentPreparedOptions.clipAlways;
|
|
var clipAlwaysChanged = checkCacheAutoForce(clipAlways, _clipAlwaysCache);
|
|
|
|
//sizeAutoCapable
|
|
var sizeAutoCapable = _currentPreparedOptions.sizeAutoCapable && !_isBody; //body can never be size auto, because it shall be always as big as the viewport.
|
|
var sizeAutoCapableChanged = checkCacheAutoForce(sizeAutoCapable, _sizeAutoCapableCache);
|
|
|
|
//showNativeScrollbars
|
|
var ignoreOverlayScrollbarHiding = _currentPreparedOptions.nativeScrollbarsOverlaid.showNativeScrollbars;
|
|
var ignoreOverlayScrollbarHidingChanged = checkCacheAutoForce(ignoreOverlayScrollbarHiding, _ignoreOverlayScrollbarHidingCache);
|
|
|
|
//autoUpdate
|
|
var autoUpdate = _currentPreparedOptions.autoUpdate;
|
|
var autoUpdateChanged = checkCacheAutoForce(autoUpdate, _autoUpdateCache);
|
|
|
|
//overflowBehavior
|
|
var overflowBehavior = _currentPreparedOptions.overflowBehavior;
|
|
var overflowBehaviorChanged = checkCacheAutoForce(overflowBehavior, _overflowBehaviorCache, force);
|
|
|
|
//dynWidth:
|
|
var textareaDynWidth = currentPreparedOptionsTextarea.dynWidth;
|
|
var textareaDynWidthChanged = checkCacheAutoForce(_textareaDynWidthCache, textareaDynWidth);
|
|
|
|
//dynHeight:
|
|
var textareaDynHeight = currentPreparedOptionsTextarea.dynHeight;
|
|
var textareaDynHeightChanged = checkCacheAutoForce(_textareaDynHeightCache, textareaDynHeight);
|
|
|
|
//scrollbars visibility
|
|
_scrollbarsAutoHideNever = scrollbarsAutoHide === 'n';
|
|
_scrollbarsAutoHideScroll = scrollbarsAutoHide === 's';
|
|
_scrollbarsAutoHideMove = scrollbarsAutoHide === 'm';
|
|
_scrollbarsAutoHideLeave = scrollbarsAutoHide === 'l';
|
|
|
|
//scrollbars autoHideDelay
|
|
_scrollbarsAutoHideDelay = currentPreparedOptionsScrollbars.autoHideDelay;
|
|
|
|
//old className
|
|
_oldClassName = _classNameCache;
|
|
|
|
//resize
|
|
_resizeNone = resize === 'n';
|
|
_resizeBoth = resize === 'b';
|
|
_resizeHorizontal = resize === 'h';
|
|
_resizeVertical = resize === 'v';
|
|
|
|
//normalizeRTL
|
|
_normalizeRTLCache = _currentPreparedOptions.normalizeRTL;
|
|
|
|
//ignore overlay scrollbar hiding
|
|
ignoreOverlayScrollbarHiding = ignoreOverlayScrollbarHiding && (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y);
|
|
|
|
//refresh options cache
|
|
_scrollbarsVisibilityCache = scrollbarsVisibility;
|
|
_scrollbarsAutoHideCache = scrollbarsAutoHide;
|
|
_scrollbarsClickScrollingCache = scrollbarsClickScrolling;
|
|
_scrollbarsDragScrollingCache = scrollbarsDragScrolling;
|
|
_classNameCache = className;
|
|
_resizeCache = resize;
|
|
_paddingAbsoluteCache = paddingAbsolute;
|
|
_clipAlwaysCache = clipAlways;
|
|
_sizeAutoCapableCache = sizeAutoCapable;
|
|
_ignoreOverlayScrollbarHidingCache = ignoreOverlayScrollbarHiding;
|
|
_autoUpdateCache = autoUpdate;
|
|
_overflowBehaviorCache = extendDeep({}, overflowBehavior);
|
|
_textareaDynWidthCache = textareaDynWidth;
|
|
_textareaDynHeightCache = textareaDynHeight;
|
|
_hasOverflowCache = _hasOverflowCache || { x: false, y: false };
|
|
|
|
//set correct class name to the host element
|
|
if (classNameChanged) {
|
|
removeClass(_hostElement, _oldClassName + _strSpace + _classNameThemeNone);
|
|
addClass(_hostElement, className !== undefined && className !== null && className.length > 0 ? className : _classNameThemeNone);
|
|
}
|
|
|
|
//set correct auto Update
|
|
if (autoUpdateChanged) {
|
|
if (autoUpdate === true || (autoUpdate === null && _autoUpdateRecommended)) {
|
|
disconnectMutationObservers();
|
|
autoUpdateLoop.add(_base);
|
|
}
|
|
else {
|
|
autoUpdateLoop.remove(_base);
|
|
connectMutationObservers();
|
|
}
|
|
}
|
|
|
|
//activate or deactivate size auto capability
|
|
if (sizeAutoCapableChanged) {
|
|
if (sizeAutoCapable) {
|
|
if (_contentGlueElement) {
|
|
_contentGlueElement.show();
|
|
}
|
|
else {
|
|
_contentGlueElement = FRAMEWORK(generateDiv(_classNameContentGlueElement));
|
|
_paddingElement.before(_contentGlueElement);
|
|
}
|
|
if (_sizeAutoObserverAdded) {
|
|
_sizeAutoObserverElement.show();
|
|
}
|
|
else {
|
|
_sizeAutoObserverElement = FRAMEWORK(generateDiv(_classNameSizeAutoObserverElement));
|
|
_sizeAutoObserverElementNative = _sizeAutoObserverElement[0];
|
|
|
|
_contentGlueElement.before(_sizeAutoObserverElement);
|
|
var oldSize = { w: -1, h: -1 };
|
|
setupResizeObserver(_sizeAutoObserverElement, function () {
|
|
var newSize = {
|
|
w: _sizeAutoObserverElementNative[LEXICON.oW],
|
|
h: _sizeAutoObserverElementNative[LEXICON.oH]
|
|
};
|
|
if (checkCache(newSize, oldSize)) {
|
|
if (_initialized && (_heightAutoCache && newSize.h > 0) || (_widthAutoCache && newSize.w > 0)) {
|
|
update();
|
|
}
|
|
else if (_initialized && (!_heightAutoCache && newSize.h === 0) || (!_widthAutoCache && newSize.w === 0)) {
|
|
update();
|
|
}
|
|
}
|
|
oldSize = newSize;
|
|
});
|
|
_sizeAutoObserverAdded = true;
|
|
//fix heightAuto detector bug if height is fixed but contentHeight is 0.
|
|
//the probability this bug will ever happen is very very low, thats why its ok if we use calc which isn't supported in IE8.
|
|
if (_cssCalc !== null)
|
|
_sizeAutoObserverElement.css(_strHeight, _cssCalc + '(100% + 1px)');
|
|
}
|
|
}
|
|
else {
|
|
if (_sizeAutoObserverAdded)
|
|
_sizeAutoObserverElement.hide();
|
|
if (_contentGlueElement)
|
|
_contentGlueElement.hide();
|
|
}
|
|
}
|
|
|
|
//if force, update all resizeObservers too
|
|
if (force) {
|
|
_sizeObserverElement.find('*').trigger(_strScroll);
|
|
if (_sizeAutoObserverAdded)
|
|
_sizeAutoObserverElement.find('*').trigger(_strScroll);
|
|
}
|
|
|
|
//display hidden:
|
|
displayIsHidden = displayIsHidden === undefined ? _hostElement.is(':hidden') : displayIsHidden;
|
|
|
|
//textarea AutoWrapping:
|
|
var textareaAutoWrapping = _isTextarea ? _targetElement.attr('wrap') !== 'off' : false;
|
|
var textareaAutoWrappingChanged = checkCacheAutoForce(textareaAutoWrapping, _textareaAutoWrappingCache);
|
|
|
|
//detect direction:
|
|
var cssDirection = _hostElement.css('direction');
|
|
var cssDirectionChanged = checkCacheAutoForce(cssDirection, _cssDirectionCache);
|
|
|
|
//detect box-sizing:
|
|
var boxSizing = _hostElement.css('box-sizing');
|
|
var boxSizingChanged = checkCacheAutoForce(boxSizing, _cssBoxSizingCache);
|
|
|
|
//detect padding:
|
|
var padding = getTopRightBottomLeftHost(_strPaddingMinus);
|
|
|
|
//width + height auto detecting var:
|
|
var sizeAutoObserverElementBCRect;
|
|
//exception occurs in IE8 sometimes (unknown exception)
|
|
try {
|
|
sizeAutoObserverElementBCRect = _sizeAutoObserverAdded ? _sizeAutoObserverElementNative[LEXICON.bCR]() : null;
|
|
} catch (ex) {
|
|
return;
|
|
}
|
|
|
|
_isRTL = cssDirection === 'rtl';
|
|
_isBorderBox = (boxSizing === 'border-box');
|
|
var isRTLLeft = _isRTL ? _strLeft : _strRight;
|
|
var isRTLRight = _isRTL ? _strRight : _strLeft;
|
|
|
|
//detect width auto:
|
|
var widthAutoResizeDetection = false;
|
|
var widthAutoObserverDetection = (_sizeAutoObserverAdded && (_hostElement.css(_strFloat) !== 'none' /*|| _isTextarea */)) ? (MATH.round(sizeAutoObserverElementBCRect.right - sizeAutoObserverElementBCRect.left) === 0) && (!paddingAbsolute ? (_hostElementNative[LEXICON.cW] - _paddingX) > 0 : true) : false;
|
|
if (sizeAutoCapable && !widthAutoObserverDetection) {
|
|
var tmpCurrHostWidth = _hostElementNative[LEXICON.oW];
|
|
var tmpCurrContentGlueWidth = _contentGlueElement.css(_strWidth);
|
|
_contentGlueElement.css(_strWidth, _strAuto);
|
|
|
|
var tmpNewHostWidth = _hostElementNative[LEXICON.oW];
|
|
_contentGlueElement.css(_strWidth, tmpCurrContentGlueWidth);
|
|
widthAutoResizeDetection = tmpCurrHostWidth !== tmpNewHostWidth;
|
|
if (!widthAutoResizeDetection) {
|
|
_contentGlueElement.css(_strWidth, tmpCurrHostWidth + 1);
|
|
tmpNewHostWidth = _hostElementNative[LEXICON.oW];
|
|
_contentGlueElement.css(_strWidth, tmpCurrContentGlueWidth);
|
|
widthAutoResizeDetection = tmpCurrHostWidth !== tmpNewHostWidth;
|
|
}
|
|
}
|
|
var widthAuto = (widthAutoObserverDetection || widthAutoResizeDetection) && sizeAutoCapable && !displayIsHidden;
|
|
var widthAutoChanged = checkCacheAutoForce(widthAuto, _widthAutoCache);
|
|
var wasWidthAuto = !widthAuto && _widthAutoCache;
|
|
|
|
//detect height auto:
|
|
var heightAuto = _sizeAutoObserverAdded && sizeAutoCapable && !displayIsHidden ? (MATH.round(sizeAutoObserverElementBCRect.bottom - sizeAutoObserverElementBCRect.top) === 0) /* && (!paddingAbsolute && (_msieVersion > 9 || !_msieVersion) ? true : true) */ : false;
|
|
var heightAutoChanged = checkCacheAutoForce(heightAuto, _heightAutoCache);
|
|
var wasHeightAuto = !heightAuto && _heightAutoCache;
|
|
|
|
//detect border:
|
|
//we need the border only if border box and auto size
|
|
var updateBorderX = (widthAuto && _isBorderBox) || !_isBorderBox;
|
|
var updateBorderY = (heightAuto && _isBorderBox) || !_isBorderBox;
|
|
var border = getTopRightBottomLeftHost(_strBorderMinus, '-' + _strWidth, !updateBorderX, !updateBorderY)
|
|
|
|
//detect margin:
|
|
var margin = getTopRightBottomLeftHost(_strMarginMinus);
|
|
|
|
//vars to apply correct css
|
|
var contentElementCSS = {};
|
|
var contentGlueElementCSS = {};
|
|
|
|
//funcs
|
|
var getHostSize = function () {
|
|
//has to be clientSize because offsetSize respect borders
|
|
return {
|
|
w: _hostElementNative[LEXICON.cW],
|
|
h: _hostElementNative[LEXICON.cH]
|
|
};
|
|
};
|
|
var getViewportSize = function () {
|
|
//viewport size is padding container because it never has padding, margin and a border
|
|
//determine zoom rounding error -> sometimes scrollWidth/Height is smaller than clientWidth/Height
|
|
//if this happens add the difference to the viewportSize to compensate the rounding error
|
|
return {
|
|
w: _paddingElementNative[LEXICON.oW] + MATH.max(0, _contentElementNative[LEXICON.cW] - _contentElementNative[LEXICON.sW]),
|
|
h: _paddingElementNative[LEXICON.oH] + MATH.max(0, _contentElementNative[LEXICON.cH] - _contentElementNative[LEXICON.sH])
|
|
};
|
|
};
|
|
|
|
//set info for padding
|
|
var paddingAbsoluteX = _paddingX = padding.l + padding.r;
|
|
var paddingAbsoluteY = _paddingY = padding.t + padding.b;
|
|
paddingAbsoluteX *= paddingAbsolute ? 1 : 0;
|
|
paddingAbsoluteY *= paddingAbsolute ? 1 : 0;
|
|
padding.c = checkCacheAutoForce(padding, _cssPaddingCache);
|
|
|
|
//set info for border
|
|
_borderX = border.l + border.r;
|
|
_borderY = border.t + border.b;
|
|
border.c = checkCacheAutoForce(border, _cssBorderCache);
|
|
|
|
//set info for margin
|
|
_marginX = margin.l + margin.r;
|
|
_marginY = margin.t + margin.b;
|
|
margin.c = checkCacheAutoForce(margin, _cssMarginCache);
|
|
|
|
//refresh cache
|
|
_textareaAutoWrappingCache = textareaAutoWrapping;
|
|
_cssDirectionCache = cssDirection;
|
|
_cssBoxSizingCache = boxSizing;
|
|
_widthAutoCache = widthAuto;
|
|
_heightAutoCache = heightAuto;
|
|
_cssPaddingCache = padding;
|
|
_cssBorderCache = border;
|
|
_cssMarginCache = margin;
|
|
|
|
//IEFix direction changed
|
|
if (cssDirectionChanged && _sizeAutoObserverAdded)
|
|
_sizeAutoObserverElement.css(_strFloat, isRTLRight);
|
|
|
|
//apply padding:
|
|
if (padding.c || cssDirectionChanged || paddingAbsoluteChanged || widthAutoChanged || heightAutoChanged || boxSizingChanged || sizeAutoCapableChanged) {
|
|
var paddingElementCSS = {};
|
|
var textareaCSS = {};
|
|
var paddingValues = [padding.t, padding.r, padding.b, padding.l];
|
|
|
|
setTopRightBottomLeft(contentGlueElementCSS, _strMarginMinus, [-padding.t, -padding.r, -padding.b, -padding.l]);
|
|
if (paddingAbsolute) {
|
|
setTopRightBottomLeft(paddingElementCSS, _strEmpty, paddingValues);
|
|
setTopRightBottomLeft(_isTextarea ? textareaCSS : contentElementCSS, _strPaddingMinus);
|
|
}
|
|
else {
|
|
setTopRightBottomLeft(paddingElementCSS, _strEmpty);
|
|
setTopRightBottomLeft(_isTextarea ? textareaCSS : contentElementCSS, _strPaddingMinus, paddingValues);
|
|
}
|
|
|
|
_paddingElement.css(paddingElementCSS);
|
|
_targetElement.css(textareaCSS);
|
|
}
|
|
|
|
//viewport size is padding container because it never has padding, margin and a border.
|
|
_viewportSize = getViewportSize();
|
|
|
|
//update Textarea
|
|
var textareaSize = _isTextarea ? textareaUpdate() : false;
|
|
var textareaSizeChanged = _isTextarea && checkCacheAutoForce(textareaSize, _textareaSizeCache);
|
|
var textareaDynOrigSize = _isTextarea && textareaSize ? {
|
|
w: textareaDynWidth ? textareaSize._dynamicWidth : textareaSize._originalWidth,
|
|
h: textareaDynHeight ? textareaSize._dynamicHeight : textareaSize._originalHeight
|
|
} : {};
|
|
_textareaSizeCache = textareaSize;
|
|
|
|
//fix height auto / width auto in cooperation with current padding & boxSizing behavior:
|
|
if (heightAuto && (heightAutoChanged || paddingAbsoluteChanged || boxSizingChanged || padding.c || border.c)) {
|
|
contentElementCSS[_strHeight] = _strAuto;
|
|
}
|
|
else if (heightAutoChanged || paddingAbsoluteChanged) {
|
|
contentElementCSS[_strHeight] = _strHundredPercent;
|
|
}
|
|
if (widthAuto && (widthAutoChanged || paddingAbsoluteChanged || boxSizingChanged || padding.c || border.c || cssDirectionChanged)) {
|
|
contentElementCSS[_strWidth] = _strAuto;
|
|
contentGlueElementCSS[_strMaxMinus + _strWidth] = _strHundredPercent; //IE Fix
|
|
}
|
|
else if (widthAutoChanged || paddingAbsoluteChanged) {
|
|
contentElementCSS[_strWidth] = _strHundredPercent;
|
|
contentElementCSS[_strFloat] = _strEmpty;
|
|
contentGlueElementCSS[_strMaxMinus + _strWidth] = _strEmpty; //IE Fix
|
|
}
|
|
if (widthAuto) {
|
|
//textareaDynOrigSize.w || _strAuto :: doesnt works because applied margin will shift width
|
|
contentGlueElementCSS[_strWidth] = _strAuto;
|
|
|
|
contentElementCSS[_strWidth] = VENDORS._cssPropertyValue(_strWidth, 'max-content intrinsic') || _strAuto;
|
|
contentElementCSS[_strFloat] = isRTLRight;
|
|
}
|
|
else {
|
|
contentGlueElementCSS[_strWidth] = _strEmpty;
|
|
}
|
|
if (heightAuto) {
|
|
//textareaDynOrigSize.h || _contentElementNative[LEXICON.cH] :: use for anti scroll jumping
|
|
contentGlueElementCSS[_strHeight] = textareaDynOrigSize.h || _contentElementNative[LEXICON.cH];
|
|
}
|
|
else {
|
|
contentGlueElementCSS[_strHeight] = _strEmpty;
|
|
}
|
|
if (sizeAutoCapable)
|
|
_contentGlueElement.css(contentGlueElementCSS);
|
|
_contentElement.css(contentElementCSS);
|
|
|
|
//CHECKPOINT HERE ~
|
|
contentElementCSS = {};
|
|
contentGlueElementCSS = {};
|
|
|
|
//if [content(host) client / scroll size, or target element direction, or content(host) max-sizes] changed, or force is true
|
|
if (hostSizeChanged || contentSizeChanged || textareaSizeChanged || cssDirectionChanged || boxSizingChanged || paddingAbsoluteChanged || widthAutoChanged || widthAuto || heightAutoChanged || heightAuto || ignoreOverlayScrollbarHidingChanged || overflowBehaviorChanged || clipAlwaysChanged || resizeChanged || scrollbarsVisibilityChanged || scrollbarsAutoHideChanged || scrollbarsDragScrollingChanged || scrollbarsClickScrollingChanged || textareaDynWidthChanged || textareaDynHeightChanged || textareaAutoWrappingChanged) {
|
|
var strOverflow = 'overflow';
|
|
var strOverflowX = strOverflow + '-x';
|
|
var strOverflowY = strOverflow + '-y';
|
|
var strHidden = 'hidden';
|
|
var strVisible = 'visible';
|
|
|
|
//Reset the viewport (very important for natively overlaid scrollbars and zoom change
|
|
//don't change the overflow prop as it is very expensive and affects performance !A LOT!
|
|
if (!_nativeScrollbarStyling) {
|
|
var viewportElementResetCSS = {};
|
|
var resetXTmp = _hasOverflowCache.y && _hideOverflowCache.ys && !ignoreOverlayScrollbarHiding ? (_nativeScrollbarIsOverlaid.y ? _viewportElement.css(isRTLLeft) : -_nativeScrollbarSize.y) : 0;
|
|
var resetBottomTmp = _hasOverflowCache.x && _hideOverflowCache.xs && !ignoreOverlayScrollbarHiding ? (_nativeScrollbarIsOverlaid.x ? _viewportElement.css(_strBottom) : -_nativeScrollbarSize.x) : 0;
|
|
setTopRightBottomLeft(viewportElementResetCSS, _strEmpty);
|
|
_viewportElement.css(viewportElementResetCSS);
|
|
}
|
|
|
|
//measure several sizes:
|
|
var contentMeasureElement = getContentMeasureElement();
|
|
//in Firefox content element has to have overflow hidden, else element margins aren't calculated properly, this element prevents this bug, but only if scrollbars aren't overlaid
|
|
var contentSize = {
|
|
//use clientSize because natively overlaidScrollbars add borders
|
|
w: textareaDynOrigSize.w || contentMeasureElement[LEXICON.cW],
|
|
h: textareaDynOrigSize.h || contentMeasureElement[LEXICON.cH]
|
|
};
|
|
var scrollSize = {
|
|
w: contentMeasureElement[LEXICON.sW],
|
|
h: contentMeasureElement[LEXICON.sH]
|
|
};
|
|
|
|
//apply the correct viewport style and measure viewport size
|
|
if (!_nativeScrollbarStyling) {
|
|
viewportElementResetCSS[_strBottom] = wasHeightAuto ? _strEmpty : resetBottomTmp;
|
|
viewportElementResetCSS[isRTLLeft] = wasWidthAuto ? _strEmpty : resetXTmp;
|
|
_viewportElement.css(viewportElementResetCSS);
|
|
}
|
|
_viewportSize = getViewportSize();
|
|
|
|
//measure and correct several sizes
|
|
var hostSize = getHostSize();
|
|
var hostAbsoluteRectSize = {
|
|
w: hostSize.w - _marginX - _borderX - (_isBorderBox ? 0 : _paddingX),
|
|
h: hostSize.h - _marginY - _borderY - (_isBorderBox ? 0 : _paddingY)
|
|
};
|
|
var contentGlueSize = {
|
|
//client/scrollSize + AbsolutePadding -> because padding is only applied to the paddingElement if its absolute, so you have to add it manually
|
|
//hostSize is clientSize -> so padding should be added manually, right? FALSE! Because content glue is inside hostElement, so we don't have to worry about padding
|
|
w: MATH.max((widthAuto ? contentSize.w : scrollSize.w) + paddingAbsoluteX, hostAbsoluteRectSize.w),
|
|
h: MATH.max((heightAuto ? contentSize.h : scrollSize.h) + paddingAbsoluteY, hostAbsoluteRectSize.h)
|
|
};
|
|
contentGlueSize.c = checkCacheAutoForce(contentGlueSize, _contentGlueSizeCache);
|
|
_contentGlueSizeCache = contentGlueSize;
|
|
|
|
//apply correct contentGlue size
|
|
if (sizeAutoCapable) {
|
|
//size contentGlue correctly to make sure the element has correct size if the sizing switches to auto
|
|
if (contentGlueSize.c || (heightAuto || widthAuto)) {
|
|
contentGlueElementCSS[_strWidth] = contentGlueSize.w;
|
|
contentGlueElementCSS[_strHeight] = contentGlueSize.h;
|
|
|
|
//textarea-sizes are already calculated correctly at this point
|
|
if (!_isTextarea) {
|
|
contentSize = {
|
|
//use clientSize because natively overlaidScrollbars add borders
|
|
w: contentMeasureElement[LEXICON.cW],
|
|
h: contentMeasureElement[LEXICON.cH]
|
|
};
|
|
}
|
|
}
|
|
var textareaCoverCSS = {};
|
|
var setContentGlueElementCSSfunction = function (horizontal) {
|
|
var scrollbarVars = getScrollbarVars(horizontal);
|
|
var wh = scrollbarVars._w_h;
|
|
var strWH = scrollbarVars._width_height;
|
|
var autoSize = horizontal ? widthAuto : heightAuto;
|
|
var borderSize = horizontal ? _borderX : _borderY;
|
|
var paddingSize = horizontal ? _paddingX : _paddingY;
|
|
var marginSize = horizontal ? _marginX : _marginY;
|
|
var viewportSize = _viewportSize[wh] - borderSize - marginSize - (_isBorderBox ? 0 : paddingSize);
|
|
|
|
//make contentGlue size -1 if element is not auto sized, to make sure that a resize event happens when the element shrinks
|
|
if (!autoSize || (!autoSize && border.c))
|
|
contentGlueElementCSS[strWH] = hostAbsoluteRectSize[wh] - 1;
|
|
|
|
//if size is auto and host is smaller than size as min size, make content glue size -1 to make sure size changes will be detected (this is only needed if padding is 0)
|
|
if (autoSize && (contentSize[wh] < viewportSize) && (horizontal && _isTextarea ? !textareaAutoWrapping : true)) {
|
|
if (_isTextarea)
|
|
textareaCoverCSS[strWH] = parseToZeroOrNumber(_textareaCoverElement.css(strWH)) - 1;
|
|
contentGlueElementCSS[strWH] -= 1;
|
|
}
|
|
|
|
//make sure content glue size is at least 1
|
|
if (contentSize[wh] > 0)
|
|
contentGlueElementCSS[strWH] = MATH.max(1, contentGlueElementCSS[strWH]);
|
|
};
|
|
setContentGlueElementCSSfunction(true);
|
|
setContentGlueElementCSSfunction(false);
|
|
|
|
if (_isTextarea)
|
|
_textareaCoverElement.css(textareaCoverCSS);
|
|
_contentGlueElement.css(contentGlueElementCSS);
|
|
}
|
|
if (widthAuto)
|
|
contentElementCSS[_strWidth] = _strHundredPercent;
|
|
if (widthAuto && !_isBorderBox && !_mutationObserversConnected)
|
|
contentElementCSS[_strFloat] = 'none';
|
|
|
|
//apply and reset content style
|
|
_contentElement.css(contentElementCSS);
|
|
contentElementCSS = {};
|
|
|
|
//measure again, but this time all correct sizes:
|
|
var contentScrollSize = {
|
|
w: contentMeasureElement[LEXICON.sW],
|
|
h: contentMeasureElement[LEXICON.sH],
|
|
};
|
|
contentScrollSize.c = contentSizeChanged = checkCacheAutoForce(contentScrollSize, _contentScrollSizeCache);
|
|
_contentScrollSizeCache = contentScrollSize;
|
|
|
|
//refresh viewport size after correct measuring
|
|
_viewportSize = getViewportSize();
|
|
|
|
hostSize = getHostSize();
|
|
hostSizeChanged = checkCacheAutoForce(hostSize, _hostSizeCache);
|
|
_hostSizeCache = hostSize;
|
|
|
|
var hideOverflowForceTextarea = _isTextarea && (_viewportSize.w === 0 || _viewportSize.h === 0);
|
|
var previousOverflowAmount = _overflowAmountCache;
|
|
var overflowBehaviorIsVS = {};
|
|
var overflowBehaviorIsVH = {};
|
|
var overflowBehaviorIsS = {};
|
|
var overflowAmount = {};
|
|
var hasOverflow = {};
|
|
var hideOverflow = {};
|
|
var canScroll = {};
|
|
var viewportRect = _paddingElementNative[LEXICON.bCR]();
|
|
var setOverflowVariables = function (horizontal) {
|
|
var scrollbarVars = getScrollbarVars(horizontal);
|
|
var scrollbarVarsInverted = getScrollbarVars(!horizontal);
|
|
var xyI = scrollbarVarsInverted._x_y;
|
|
var xy = scrollbarVars._x_y;
|
|
var wh = scrollbarVars._w_h;
|
|
var widthHeight = scrollbarVars._width_height;
|
|
var scrollMax = _strScroll + scrollbarVars._Left_Top + 'Max';
|
|
var fractionalOverflowAmount = viewportRect[widthHeight] ? MATH.abs(viewportRect[widthHeight] - _viewportSize[wh]) : 0;
|
|
var checkFractionalOverflowAmount = previousOverflowAmount && previousOverflowAmount[xy] > 0 && _viewportElementNative[scrollMax] === 0;
|
|
overflowBehaviorIsVS[xy] = overflowBehavior[xy] === 'v-s';
|
|
overflowBehaviorIsVH[xy] = overflowBehavior[xy] === 'v-h';
|
|
overflowBehaviorIsS[xy] = overflowBehavior[xy] === 's';
|
|
overflowAmount[xy] = MATH.max(0, MATH.round((contentScrollSize[wh] - _viewportSize[wh]) * 100) / 100);
|
|
overflowAmount[xy] *= (hideOverflowForceTextarea || (checkFractionalOverflowAmount && fractionalOverflowAmount > 0 && fractionalOverflowAmount < 1)) ? 0 : 1;
|
|
hasOverflow[xy] = overflowAmount[xy] > 0;
|
|
|
|
//hideOverflow:
|
|
//x || y : true === overflow is hidden by "overflow: scroll" OR "overflow: hidden"
|
|
//xs || ys : true === overflow is hidden by "overflow: scroll"
|
|
hideOverflow[xy] = overflowBehaviorIsVS[xy] || overflowBehaviorIsVH[xy] ? (hasOverflow[xyI] && !overflowBehaviorIsVS[xyI] && !overflowBehaviorIsVH[xyI]) : hasOverflow[xy];
|
|
hideOverflow[xy + 's'] = hideOverflow[xy] ? (overflowBehaviorIsS[xy] || overflowBehaviorIsVS[xy]) : false;
|
|
|
|
canScroll[xy] = hasOverflow[xy] && hideOverflow[xy + 's'];
|
|
};
|
|
setOverflowVariables(true);
|
|
setOverflowVariables(false);
|
|
|
|
overflowAmount.c = checkCacheAutoForce(overflowAmount, _overflowAmountCache);
|
|
_overflowAmountCache = overflowAmount;
|
|
hasOverflow.c = checkCacheAutoForce(hasOverflow, _hasOverflowCache);
|
|
_hasOverflowCache = hasOverflow;
|
|
hideOverflow.c = checkCacheAutoForce(hideOverflow, _hideOverflowCache);
|
|
_hideOverflowCache = hideOverflow;
|
|
|
|
//if native scrollbar is overlay at x OR y axis, prepare DOM
|
|
if (_nativeScrollbarIsOverlaid.x || _nativeScrollbarIsOverlaid.y) {
|
|
var borderDesign = 'px solid transparent';
|
|
var contentArrangeElementCSS = {};
|
|
var arrangeContent = {};
|
|
var arrangeChanged = force;
|
|
var setContentElementCSS;
|
|
|
|
if (hasOverflow.x || hasOverflow.y) {
|
|
arrangeContent.w = _nativeScrollbarIsOverlaid.y && hasOverflow.y ? contentScrollSize.w + _overlayScrollbarDummySize.y : _strEmpty;
|
|
arrangeContent.h = _nativeScrollbarIsOverlaid.x && hasOverflow.x ? contentScrollSize.h + _overlayScrollbarDummySize.x : _strEmpty;
|
|
arrangeChanged = checkCacheAutoForce(arrangeContent, _arrangeContentSizeCache);
|
|
_arrangeContentSizeCache = arrangeContent;
|
|
}
|
|
|
|
if (hasOverflow.c || hideOverflow.c || contentScrollSize.c || cssDirectionChanged || widthAutoChanged || heightAutoChanged || widthAuto || heightAuto || ignoreOverlayScrollbarHidingChanged) {
|
|
contentElementCSS[_strMarginMinus + isRTLRight] = contentElementCSS[_strBorderMinus + isRTLRight] = _strEmpty;
|
|
setContentElementCSS = function (horizontal) {
|
|
var scrollbarVars = getScrollbarVars(horizontal);
|
|
var scrollbarVarsInverted = getScrollbarVars(!horizontal);
|
|
var xy = scrollbarVars._x_y;
|
|
var strDirection = horizontal ? _strBottom : isRTLLeft;
|
|
var invertedAutoSize = horizontal ? heightAuto : widthAuto;
|
|
|
|
if (_nativeScrollbarIsOverlaid[xy] && hasOverflow[xy] && hideOverflow[xy + 's']) {
|
|
contentElementCSS[_strMarginMinus + strDirection] = invertedAutoSize ? (ignoreOverlayScrollbarHiding ? _strEmpty : _overlayScrollbarDummySize[xy]) : _strEmpty;
|
|
contentElementCSS[_strBorderMinus + strDirection] = ((horizontal ? !invertedAutoSize : true) && !ignoreOverlayScrollbarHiding) ? (_overlayScrollbarDummySize[xy] + borderDesign) : _strEmpty;
|
|
}
|
|
else {
|
|
arrangeContent[scrollbarVarsInverted._w_h] =
|
|
contentElementCSS[_strMarginMinus + strDirection] =
|
|
contentElementCSS[_strBorderMinus + strDirection] = _strEmpty;
|
|
arrangeChanged = true;
|
|
}
|
|
};
|
|
|
|
if (_nativeScrollbarStyling) {
|
|
addRemoveClass(_viewportElement, _classNameViewportNativeScrollbarsInvisible, !ignoreOverlayScrollbarHiding)
|
|
}
|
|
else {
|
|
setContentElementCSS(true);
|
|
setContentElementCSS(false);
|
|
}
|
|
}
|
|
if (ignoreOverlayScrollbarHiding) {
|
|
arrangeContent.w = arrangeContent.h = _strEmpty;
|
|
arrangeChanged = true;
|
|
}
|
|
if (arrangeChanged && !_nativeScrollbarStyling) {
|
|
contentArrangeElementCSS[_strWidth] = hideOverflow.y ? arrangeContent.w : _strEmpty;
|
|
contentArrangeElementCSS[_strHeight] = hideOverflow.x ? arrangeContent.h : _strEmpty;
|
|
|
|
if (!_contentArrangeElement) {
|
|
_contentArrangeElement = FRAMEWORK(generateDiv(_classNameContentArrangeElement));
|
|
_viewportElement.prepend(_contentArrangeElement);
|
|
}
|
|
_contentArrangeElement.css(contentArrangeElementCSS);
|
|
}
|
|
_contentElement.css(contentElementCSS);
|
|
}
|
|
|
|
var viewportElementCSS = {};
|
|
var paddingElementCSS = {};
|
|
var setViewportCSS;
|
|
if (hostSizeChanged || hasOverflow.c || hideOverflow.c || contentScrollSize.c || overflowBehaviorChanged || boxSizingChanged || ignoreOverlayScrollbarHidingChanged || cssDirectionChanged || clipAlwaysChanged || heightAutoChanged) {
|
|
viewportElementCSS[isRTLRight] = _strEmpty;
|
|
setViewportCSS = function (horizontal) {
|
|
var scrollbarVars = getScrollbarVars(horizontal);
|
|
var scrollbarVarsInverted = getScrollbarVars(!horizontal);
|
|
var xy = scrollbarVars._x_y;
|
|
var XY = scrollbarVars._X_Y;
|
|
var strDirection = horizontal ? _strBottom : isRTLLeft;
|
|
|
|
var reset = function () {
|
|
viewportElementCSS[strDirection] = _strEmpty;
|
|
_contentBorderSize[scrollbarVarsInverted._w_h] = 0;
|
|
};
|
|
if (hasOverflow[xy] && hideOverflow[xy + 's']) {
|
|
viewportElementCSS[strOverflow + XY] = _strScroll;
|
|
if (ignoreOverlayScrollbarHiding || _nativeScrollbarStyling) {
|
|
reset();
|
|
}
|
|
else {
|
|
viewportElementCSS[strDirection] = -(_nativeScrollbarIsOverlaid[xy] ? _overlayScrollbarDummySize[xy] : _nativeScrollbarSize[xy]);
|
|
_contentBorderSize[scrollbarVarsInverted._w_h] = _nativeScrollbarIsOverlaid[xy] ? _overlayScrollbarDummySize[scrollbarVarsInverted._x_y] : 0;
|
|
}
|
|
} else {
|
|
viewportElementCSS[strOverflow + XY] = _strEmpty;
|
|
reset();
|
|
}
|
|
};
|
|
setViewportCSS(true);
|
|
setViewportCSS(false);
|
|
|
|
// if the scroll container is too small and if there is any overflow with no overlay scrollbar (and scrollbar styling isn't possible),
|
|
// make viewport element greater in size (Firefox hide Scrollbars fix)
|
|
// because firefox starts hiding scrollbars on too small elements
|
|
// with this behavior the overflow calculation may be incorrect or the scrollbars would appear suddenly
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=292284
|
|
if (!_nativeScrollbarStyling
|
|
&& (_viewportSize.h < _nativeScrollbarMinSize.x || _viewportSize.w < _nativeScrollbarMinSize.y)
|
|
&& ((hasOverflow.x && hideOverflow.x && !_nativeScrollbarIsOverlaid.x) || (hasOverflow.y && hideOverflow.y && !_nativeScrollbarIsOverlaid.y))) {
|
|
viewportElementCSS[_strPaddingMinus + _strTop] = _nativeScrollbarMinSize.x;
|
|
viewportElementCSS[_strMarginMinus + _strTop] = -_nativeScrollbarMinSize.x;
|
|
|
|
viewportElementCSS[_strPaddingMinus + isRTLRight] = _nativeScrollbarMinSize.y;
|
|
viewportElementCSS[_strMarginMinus + isRTLRight] = -_nativeScrollbarMinSize.y;
|
|
}
|
|
else {
|
|
viewportElementCSS[_strPaddingMinus + _strTop] =
|
|
viewportElementCSS[_strMarginMinus + _strTop] =
|
|
viewportElementCSS[_strPaddingMinus + isRTLRight] =
|
|
viewportElementCSS[_strMarginMinus + isRTLRight] = _strEmpty;
|
|
}
|
|
viewportElementCSS[_strPaddingMinus + isRTLLeft] =
|
|
viewportElementCSS[_strMarginMinus + isRTLLeft] = _strEmpty;
|
|
|
|
//if there is any overflow (x OR y axis) and this overflow shall be hidden, make overflow hidden, else overflow visible
|
|
if ((hasOverflow.x && hideOverflow.x) || (hasOverflow.y && hideOverflow.y) || hideOverflowForceTextarea) {
|
|
//only hide if is Textarea
|
|
if (_isTextarea && hideOverflowForceTextarea) {
|
|
paddingElementCSS[strOverflowX] =
|
|
paddingElementCSS[strOverflowY] = strHidden;
|
|
}
|
|
}
|
|
else {
|
|
if (!clipAlways || (overflowBehaviorIsVH.x || overflowBehaviorIsVS.x || overflowBehaviorIsVH.y || overflowBehaviorIsVS.y)) {
|
|
//only un-hide if Textarea
|
|
if (_isTextarea) {
|
|
paddingElementCSS[strOverflowX] =
|
|
paddingElementCSS[strOverflowY] = _strEmpty;
|
|
}
|
|
viewportElementCSS[strOverflowX] =
|
|
viewportElementCSS[strOverflowY] = strVisible;
|
|
}
|
|
}
|
|
|
|
_paddingElement.css(paddingElementCSS);
|
|
_viewportElement.css(viewportElementCSS);
|
|
viewportElementCSS = {};
|
|
|
|
//force soft redraw in webkit because without the scrollbars will may appear because DOM wont be redrawn under special conditions
|
|
if ((hasOverflow.c || boxSizingChanged || widthAutoChanged || heightAutoChanged) && !(_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y)) {
|
|
var elementStyle = _contentElementNative[LEXICON.s];
|
|
var dump;
|
|
elementStyle.webkitTransform = 'scale(1)';
|
|
elementStyle.display = 'run-in';
|
|
dump = _contentElementNative[LEXICON.oH];
|
|
elementStyle.display = _strEmpty; //|| dump; //use dump to prevent it from deletion if minify
|
|
elementStyle.webkitTransform = _strEmpty;
|
|
}
|
|
/*
|
|
//force hard redraw in webkit if native overlaid scrollbars shall appear
|
|
if (ignoreOverlayScrollbarHidingChanged && ignoreOverlayScrollbarHiding) {
|
|
_hostElement.hide();
|
|
var dump = _hostElementNative[LEXICON.oH];
|
|
_hostElement.show();
|
|
}
|
|
*/
|
|
}
|
|
|
|
//change to direction RTL and width auto Bugfix in Webkit
|
|
//without this fix, the DOM still thinks the scrollbar is LTR and thus the content is shifted to the left
|
|
contentElementCSS = {};
|
|
if (cssDirectionChanged || widthAutoChanged || heightAutoChanged) {
|
|
if (_isRTL && widthAuto) {
|
|
var floatTmp = _contentElement.css(_strFloat);
|
|
var posLeftWithoutFloat = MATH.round(_contentElement.css(_strFloat, _strEmpty).css(_strLeft, _strEmpty).position().left);
|
|
_contentElement.css(_strFloat, floatTmp);
|
|
var posLeftWithFloat = MATH.round(_contentElement.position().left);
|
|
|
|
if (posLeftWithoutFloat !== posLeftWithFloat)
|
|
contentElementCSS[_strLeft] = posLeftWithoutFloat;
|
|
}
|
|
else {
|
|
contentElementCSS[_strLeft] = _strEmpty;
|
|
}
|
|
}
|
|
_contentElement.css(contentElementCSS);
|
|
|
|
//handle scroll position
|
|
if (_isTextarea && contentSizeChanged) {
|
|
var textareaInfo = getTextareaInfo();
|
|
if (textareaInfo) {
|
|
var textareaRowsChanged = _textareaInfoCache === undefined ? true : textareaInfo._rows !== _textareaInfoCache._rows;
|
|
var cursorRow = textareaInfo._cursorRow;
|
|
var cursorCol = textareaInfo._cursorColumn;
|
|
var widestRow = textareaInfo._widestRow;
|
|
var lastRow = textareaInfo._rows;
|
|
var lastCol = textareaInfo._columns;
|
|
var cursorPos = textareaInfo._cursorPosition;
|
|
var cursorMax = textareaInfo._cursorMax;
|
|
var cursorIsLastPosition = (cursorPos >= cursorMax && _textareaHasFocus);
|
|
var textareaScrollAmount = {
|
|
x: (!textareaAutoWrapping && (cursorCol === lastCol && cursorRow === widestRow)) ? _overflowAmountCache.x : -1,
|
|
y: (textareaAutoWrapping ? cursorIsLastPosition || textareaRowsChanged && (previousOverflowAmount ? (currScroll.y === previousOverflowAmount.y) : false) : (cursorIsLastPosition || textareaRowsChanged) && cursorRow === lastRow) ? _overflowAmountCache.y : -1
|
|
};
|
|
currScroll.x = textareaScrollAmount.x > -1 ? (_isRTL && _normalizeRTLCache && _rtlScrollBehavior.i ? 0 : textareaScrollAmount.x) : currScroll.x; //if inverted, scroll to 0 -> normalized this means to max scroll offset.
|
|
currScroll.y = textareaScrollAmount.y > -1 ? textareaScrollAmount.y : currScroll.y;
|
|
}
|
|
_textareaInfoCache = textareaInfo;
|
|
}
|
|
if (_isRTL && _rtlScrollBehavior.i && _nativeScrollbarIsOverlaid.y && hasOverflow.x && _normalizeRTLCache)
|
|
currScroll.x += _contentBorderSize.w || 0;
|
|
if (widthAuto)
|
|
_hostElement[_strScrollLeft](0);
|
|
if (heightAuto)
|
|
_hostElement[_strScrollTop](0);
|
|
_viewportElement[_strScrollLeft](currScroll.x)[_strScrollTop](currScroll.y);
|
|
|
|
//scrollbars management:
|
|
var scrollbarsVisibilityVisible = scrollbarsVisibility === 'v';
|
|
var scrollbarsVisibilityHidden = scrollbarsVisibility === 'h';
|
|
var scrollbarsVisibilityAuto = scrollbarsVisibility === 'a';
|
|
var refreshScrollbarsVisibility = function (showX, showY) {
|
|
showY = showY === undefined ? showX : showY;
|
|
refreshScrollbarAppearance(true, showX, canScroll.x)
|
|
refreshScrollbarAppearance(false, showY, canScroll.y)
|
|
};
|
|
|
|
//manage class name which indicates scrollable overflow
|
|
addRemoveClass(_hostElement, _classNameHostOverflow, hideOverflow.x || hideOverflow.y);
|
|
addRemoveClass(_hostElement, _classNameHostOverflowX, hideOverflow.x);
|
|
addRemoveClass(_hostElement, _classNameHostOverflowY, hideOverflow.y);
|
|
|
|
//add or remove rtl class name for styling purposes except when its body, then the scrollbar stays
|
|
if (cssDirectionChanged && !_isBody) {
|
|
addRemoveClass(_hostElement, _classNameHostRTL, _isRTL);
|
|
}
|
|
|
|
//manage the resize feature (CSS3 resize "polyfill" for this plugin)
|
|
if (_isBody)
|
|
addClass(_hostElement, _classNameHostResizeDisabled);
|
|
if (resizeChanged) {
|
|
addRemoveClass(_hostElement, _classNameHostResizeDisabled, _resizeNone);
|
|
addRemoveClass(_scrollbarCornerElement, _classNameScrollbarCornerResize, !_resizeNone);
|
|
addRemoveClass(_scrollbarCornerElement, _classNameScrollbarCornerResizeB, _resizeBoth);
|
|
addRemoveClass(_scrollbarCornerElement, _classNameScrollbarCornerResizeH, _resizeHorizontal);
|
|
addRemoveClass(_scrollbarCornerElement, _classNameScrollbarCornerResizeV, _resizeVertical);
|
|
}
|
|
|
|
//manage the scrollbars general visibility + the scrollbar interactivity (unusable class name)
|
|
if (scrollbarsVisibilityChanged || overflowBehaviorChanged || hideOverflow.c || hasOverflow.c || ignoreOverlayScrollbarHidingChanged) {
|
|
if (ignoreOverlayScrollbarHiding) {
|
|
if (ignoreOverlayScrollbarHidingChanged) {
|
|
removeClass(_hostElement, _classNameHostScrolling);
|
|
if (ignoreOverlayScrollbarHiding) {
|
|
refreshScrollbarsVisibility(false);
|
|
}
|
|
}
|
|
}
|
|
else if (scrollbarsVisibilityAuto) {
|
|
refreshScrollbarsVisibility(canScroll.x, canScroll.y);
|
|
}
|
|
else if (scrollbarsVisibilityVisible) {
|
|
refreshScrollbarsVisibility(true);
|
|
}
|
|
else if (scrollbarsVisibilityHidden) {
|
|
refreshScrollbarsVisibility(false);
|
|
}
|
|
}
|
|
|
|
//manage the scrollbars auto hide feature (auto hide them after specific actions)
|
|
if (scrollbarsAutoHideChanged || ignoreOverlayScrollbarHidingChanged) {
|
|
setupHostMouseTouchEvents(!_scrollbarsAutoHideLeave && !_scrollbarsAutoHideMove);
|
|
refreshScrollbarsAutoHide(_scrollbarsAutoHideNever, !_scrollbarsAutoHideNever);
|
|
}
|
|
|
|
//manage scrollbars handle length & offset - don't remove!
|
|
if (hostSizeChanged || overflowAmount.c || heightAutoChanged || widthAutoChanged || resizeChanged || boxSizingChanged || paddingAbsoluteChanged || ignoreOverlayScrollbarHidingChanged || cssDirectionChanged) {
|
|
refreshScrollbarHandleLength(true);
|
|
refreshScrollbarHandleOffset(true);
|
|
refreshScrollbarHandleLength(false);
|
|
refreshScrollbarHandleOffset(false);
|
|
}
|
|
|
|
//manage interactivity
|
|
if (scrollbarsClickScrollingChanged)
|
|
refreshScrollbarsInteractive(true, scrollbarsClickScrolling);
|
|
if (scrollbarsDragScrollingChanged)
|
|
refreshScrollbarsInteractive(false, scrollbarsDragScrolling);
|
|
|
|
//callbacks:
|
|
dispatchCallback('onDirectionChanged', {
|
|
isRTL: _isRTL,
|
|
dir: cssDirection
|
|
}, cssDirectionChanged);
|
|
dispatchCallback('onHostSizeChanged', {
|
|
width: _hostSizeCache.w,
|
|
height: _hostSizeCache.h
|
|
}, hostSizeChanged);
|
|
dispatchCallback('onContentSizeChanged', {
|
|
width: _contentScrollSizeCache.w,
|
|
height: _contentScrollSizeCache.h
|
|
}, contentSizeChanged);
|
|
dispatchCallback('onOverflowChanged', {
|
|
x: hasOverflow.x,
|
|
y: hasOverflow.y,
|
|
xScrollable: hideOverflow.xs,
|
|
yScrollable: hideOverflow.ys,
|
|
clipped: hideOverflow.x || hideOverflow.y
|
|
}, hasOverflow.c || hideOverflow.c);
|
|
dispatchCallback('onOverflowAmountChanged', {
|
|
x: overflowAmount.x,
|
|
y: overflowAmount.y
|
|
}, overflowAmount.c);
|
|
}
|
|
|
|
//fix body min size
|
|
if (_isBody && _bodyMinSizeCache && (_hasOverflowCache.c || _bodyMinSizeCache.c)) {
|
|
//its possible that no min size was measured until now, because the content arrange element was just added now, in this case, measure now the min size.
|
|
if (!_bodyMinSizeCache.f)
|
|
bodyMinSizeChanged();
|
|
if (_nativeScrollbarIsOverlaid.y && _hasOverflowCache.x)
|
|
_contentElement.css(_strMinMinus + _strWidth, _bodyMinSizeCache.w + _overlayScrollbarDummySize.y);
|
|
if (_nativeScrollbarIsOverlaid.x && _hasOverflowCache.y)
|
|
_contentElement.css(_strMinMinus + _strHeight, _bodyMinSizeCache.h + _overlayScrollbarDummySize.x);
|
|
_bodyMinSizeCache.c = false;
|
|
}
|
|
|
|
if (_initialized && changedOptions.updateOnLoad) {
|
|
updateElementsOnLoad();
|
|
}
|
|
|
|
//freezeResizeObserver(_sizeObserverElement, false);
|
|
//freezeResizeObserver(_sizeAutoObserverElement, false);
|
|
|
|
dispatchCallback('onUpdated', { forced: force });
|
|
}
|
|
|
|
/**
|
|
* Updates the found elements of which the load event shall be handled.
|
|
*/
|
|
function updateElementsOnLoad() {
|
|
if (!_isTextarea) {
|
|
eachUpdateOnLoad(function (i, updateOnLoadSelector) {
|
|
_contentElement.find(updateOnLoadSelector).each(function (i, el) {
|
|
// if element doesn't have a updateOnLoadCallback applied
|
|
if (COMPATIBILITY.inA(el, _updateOnLoadElms) < 0) {
|
|
_updateOnLoadElms.push(el);
|
|
FRAMEWORK(el)
|
|
.off(_updateOnLoadEventName, updateOnLoadCallback)
|
|
.on(_updateOnLoadEventName, updateOnLoadCallback);
|
|
}
|
|
});
|
|
});
|
|
}
|
|
}
|
|
|
|
//==== Options ====//
|
|
|
|
/**
|
|
* Sets new options but doesn't call the update method.
|
|
* @param newOptions The object which contains the new options.
|
|
* @returns {*} A object which contains the changed options.
|
|
*/
|
|
function setOptions(newOptions) {
|
|
var validatedOpts = _pluginsOptions._validate(newOptions, _pluginsOptions._template, true, _currentOptions)
|
|
|
|
_currentOptions = extendDeep({}, _currentOptions, validatedOpts._default);
|
|
_currentPreparedOptions = extendDeep({}, _currentPreparedOptions, validatedOpts._prepared);
|
|
|
|
return validatedOpts._prepared;
|
|
}
|
|
|
|
|
|
//==== Structure ====//
|
|
|
|
/**
|
|
* Builds or destroys the wrapper and helper DOM elements.
|
|
* @param destroy Indicates whether the DOM shall be build or destroyed.
|
|
*/
|
|
/**
|
|
* Builds or destroys the wrapper and helper DOM elements.
|
|
* @param destroy Indicates whether the DOM shall be build or destroyed.
|
|
*/
|
|
function setupStructureDOM(destroy) {
|
|
var strParent = 'parent';
|
|
var classNameResizeObserverHost = 'os-resize-observer-host';
|
|
var classNameTextareaElementFull = _classNameTextareaElement + _strSpace + _classNameTextInherit;
|
|
var textareaClass = _isTextarea ? _strSpace + _classNameTextInherit : _strEmpty;
|
|
var adoptAttrs = _currentPreparedOptions.textarea.inheritedAttrs;
|
|
var adoptAttrsMap = {};
|
|
var applyAdoptedAttrs = function () {
|
|
var applyAdoptedAttrsElm = destroy ? _targetElement : _hostElement;
|
|
each(adoptAttrsMap, function (key, value) {
|
|
if (type(value) == TYPES.s) {
|
|
if (key == LEXICON.c)
|
|
applyAdoptedAttrsElm.addClass(value);
|
|
else
|
|
applyAdoptedAttrsElm.attr(key, value);
|
|
}
|
|
});
|
|
};
|
|
var hostElementClassNames = [
|
|
_classNameHostElement,
|
|
_classNameHostElementForeign,
|
|
_classNameHostTextareaElement,
|
|
_classNameHostResizeDisabled,
|
|
_classNameHostRTL,
|
|
_classNameHostScrollbarHorizontalHidden,
|
|
_classNameHostScrollbarVerticalHidden,
|
|
_classNameHostTransition,
|
|
_classNameHostScrolling,
|
|
_classNameHostOverflow,
|
|
_classNameHostOverflowX,
|
|
_classNameHostOverflowY,
|
|
_classNameThemeNone,
|
|
_classNameTextareaElement,
|
|
_classNameTextInherit,
|
|
_classNameCache].join(_strSpace);
|
|
var hostElementCSS = {};
|
|
|
|
//get host element as first element, because that's the most upper element and required for the other elements
|
|
_hostElement = _hostElement || (_isTextarea ? (_domExists ? _targetElement[strParent]()[strParent]()[strParent]()[strParent]() : FRAMEWORK(generateDiv(_classNameHostTextareaElement))) : _targetElement);
|
|
_contentElement = _contentElement || selectOrGenerateDivByClass(_classNameContentElement + textareaClass);
|
|
_viewportElement = _viewportElement || selectOrGenerateDivByClass(_classNameViewportElement + textareaClass);
|
|
_paddingElement = _paddingElement || selectOrGenerateDivByClass(_classNamePaddingElement + textareaClass);
|
|
_sizeObserverElement = _sizeObserverElement || selectOrGenerateDivByClass(classNameResizeObserverHost);
|
|
_textareaCoverElement = _textareaCoverElement || (_isTextarea ? selectOrGenerateDivByClass(_classNameTextareaCoverElement) : undefined);
|
|
|
|
//add this class to workaround class changing issues with UI frameworks especially Vue
|
|
if (_domExists)
|
|
addClass(_hostElement, _classNameHostElementForeign);
|
|
|
|
//on destroy, remove all generated class names from the host element before collecting the adopted attributes
|
|
//to prevent adopting generated class names
|
|
if (destroy)
|
|
removeClass(_hostElement, hostElementClassNames);
|
|
|
|
//collect all adopted attributes
|
|
adoptAttrs = type(adoptAttrs) == TYPES.s ? adoptAttrs.split(_strSpace) : adoptAttrs;
|
|
if (COMPATIBILITY.isA(adoptAttrs) && _isTextarea) {
|
|
each(adoptAttrs, function (i, v) {
|
|
if (type(v) == TYPES.s) {
|
|
adoptAttrsMap[v] = destroy ? _hostElement.attr(v) : _targetElement.attr(v);
|
|
}
|
|
});
|
|
}
|
|
|
|
if (!destroy) {
|
|
if (_isTextarea) {
|
|
if (!_currentPreparedOptions.sizeAutoCapable) {
|
|
hostElementCSS[_strWidth] = _targetElement.css(_strWidth);
|
|
hostElementCSS[_strHeight] = _targetElement.css(_strHeight);
|
|
}
|
|
|
|
if (!_domExists)
|
|
_targetElement.addClass(_classNameTextInherit).wrap(_hostElement);
|
|
|
|
//jQuery clones elements in wrap functions, so we have to select them again
|
|
_hostElement = _targetElement[strParent]().css(hostElementCSS);
|
|
}
|
|
|
|
if (!_domExists) {
|
|
//add the correct class to the target element
|
|
addClass(_targetElement, _isTextarea ? classNameTextareaElementFull : _classNameHostElement);
|
|
|
|
//wrap the content into the generated elements to create the required DOM
|
|
_hostElement.wrapInner(_contentElement)
|
|
.wrapInner(_viewportElement)
|
|
.wrapInner(_paddingElement)
|
|
.prepend(_sizeObserverElement);
|
|
|
|
//jQuery clones elements in wrap functions, so we have to select them again
|
|
_contentElement = findFirst(_hostElement, _strDot + _classNameContentElement);
|
|
_viewportElement = findFirst(_hostElement, _strDot + _classNameViewportElement);
|
|
_paddingElement = findFirst(_hostElement, _strDot + _classNamePaddingElement);
|
|
|
|
if (_isTextarea) {
|
|
_contentElement.prepend(_textareaCoverElement);
|
|
applyAdoptedAttrs();
|
|
}
|
|
}
|
|
|
|
if (_nativeScrollbarStyling)
|
|
addClass(_viewportElement, _classNameViewportNativeScrollbarsInvisible);
|
|
if (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y)
|
|
addClass(_viewportElement, _classNameViewportNativeScrollbarsOverlaid);
|
|
if (_isBody)
|
|
addClass(_htmlElement, _classNameHTMLElement);
|
|
|
|
_sizeObserverElementNative = _sizeObserverElement[0];
|
|
_hostElementNative = _hostElement[0];
|
|
_paddingElementNative = _paddingElement[0];
|
|
_viewportElementNative = _viewportElement[0];
|
|
_contentElementNative = _contentElement[0];
|
|
|
|
updateViewportAttrsFromTarget();
|
|
}
|
|
else {
|
|
if (_domExists && _initialized) {
|
|
//clear size observer
|
|
_sizeObserverElement.children().remove();
|
|
|
|
//remove the style property and classes from already generated elements
|
|
each([_paddingElement, _viewportElement, _contentElement, _textareaCoverElement], function (i, elm) {
|
|
if (elm) {
|
|
removeClass(elm.removeAttr(LEXICON.s), _classNamesDynamicDestroy);
|
|
}
|
|
});
|
|
|
|
//add classes to the host element which was removed previously to match the expected DOM
|
|
addClass(_hostElement, _isTextarea ? _classNameHostTextareaElement : _classNameHostElement);
|
|
}
|
|
else {
|
|
//remove size observer
|
|
remove(_sizeObserverElement);
|
|
|
|
//unwrap the content to restore DOM
|
|
_contentElement.contents()
|
|
.unwrap()
|
|
.unwrap()
|
|
.unwrap();
|
|
|
|
if (_isTextarea) {
|
|
_targetElement.unwrap();
|
|
remove(_hostElement);
|
|
remove(_textareaCoverElement);
|
|
applyAdoptedAttrs();
|
|
}
|
|
}
|
|
|
|
if (_isTextarea)
|
|
_targetElement.removeAttr(LEXICON.s);
|
|
|
|
if (_isBody)
|
|
removeClass(_htmlElement, _classNameHTMLElement);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds or removes all wrapper elements interactivity events.
|
|
* @param destroy Indicates whether the Events shall be added or removed.
|
|
*/
|
|
function setupStructureEvents() {
|
|
var textareaKeyDownRestrictedKeyCodes = [
|
|
112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 123, //F1 to F12
|
|
33, 34, //page up, page down
|
|
37, 38, 39, 40, //left, up, right, down arrows
|
|
16, 17, 18, 19, 20, 144 //Shift, Ctrl, Alt, Pause, CapsLock, NumLock
|
|
];
|
|
var textareaKeyDownKeyCodesList = [];
|
|
var textareaUpdateIntervalID;
|
|
var scrollStopTimeoutId;
|
|
var scrollStopDelay = 175;
|
|
var strFocus = 'focus';
|
|
|
|
function updateTextarea(doClearInterval) {
|
|
textareaUpdate();
|
|
_base.update(_strAuto);
|
|
if (doClearInterval && _autoUpdateRecommended)
|
|
clearInterval(textareaUpdateIntervalID);
|
|
}
|
|
function textareaOnScroll(event) {
|
|
_targetElement[_strScrollLeft](_rtlScrollBehavior.i && _normalizeRTLCache ? 9999999 : 0);
|
|
_targetElement[_strScrollTop](0);
|
|
COMPATIBILITY.prvD(event);
|
|
COMPATIBILITY.stpP(event);
|
|
return false;
|
|
}
|
|
function textareaOnDrop(event) {
|
|
setTimeout(function () {
|
|
if (!_destroyed)
|
|
updateTextarea();
|
|
}, 50);
|
|
}
|
|
function textareaOnFocus() {
|
|
_textareaHasFocus = true;
|
|
addClass(_hostElement, strFocus);
|
|
}
|
|
function textareaOnFocusout() {
|
|
_textareaHasFocus = false;
|
|
textareaKeyDownKeyCodesList = [];
|
|
removeClass(_hostElement, strFocus);
|
|
updateTextarea(true);
|
|
}
|
|
function textareaOnKeyDown(event) {
|
|
var keyCode = event.keyCode;
|
|
|
|
if (inArray(keyCode, textareaKeyDownRestrictedKeyCodes) < 0) {
|
|
if (!textareaKeyDownKeyCodesList[LEXICON.l]) {
|
|
updateTextarea();
|
|
textareaUpdateIntervalID = setInterval(updateTextarea, 1000 / 60);
|
|
}
|
|
if (inArray(keyCode, textareaKeyDownKeyCodesList) < 0)
|
|
textareaKeyDownKeyCodesList.push(keyCode);
|
|
}
|
|
}
|
|
function textareaOnKeyUp(event) {
|
|
var keyCode = event.keyCode;
|
|
var index = inArray(keyCode, textareaKeyDownKeyCodesList);
|
|
|
|
if (inArray(keyCode, textareaKeyDownRestrictedKeyCodes) < 0) {
|
|
if (index > -1)
|
|
textareaKeyDownKeyCodesList.splice(index, 1);
|
|
if (!textareaKeyDownKeyCodesList[LEXICON.l])
|
|
updateTextarea(true);
|
|
}
|
|
}
|
|
function contentOnTransitionEnd(event) {
|
|
if (_autoUpdateCache === true)
|
|
return;
|
|
event = event.originalEvent || event;
|
|
if (isSizeAffectingCSSProperty(event.propertyName))
|
|
_base.update(_strAuto);
|
|
}
|
|
function viewportOnScroll(event) {
|
|
if (!_sleeping) {
|
|
if (scrollStopTimeoutId !== undefined)
|
|
clearTimeout(scrollStopTimeoutId);
|
|
else {
|
|
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
|
|
refreshScrollbarsAutoHide(true);
|
|
|
|
if (!nativeOverlayScrollbarsAreActive())
|
|
addClass(_hostElement, _classNameHostScrolling);
|
|
|
|
dispatchCallback('onScrollStart', event);
|
|
}
|
|
|
|
//if a scrollbars handle gets dragged, the mousemove event is responsible for refreshing the handle offset
|
|
//because if CSS scroll-snap is used, the handle offset gets only refreshed on every snap point
|
|
//this looks laggy & clunky, it looks much better if the offset refreshes with the mousemove
|
|
if (!_scrollbarsHandlesDefineScrollPos) {
|
|
refreshScrollbarHandleOffset(true);
|
|
refreshScrollbarHandleOffset(false);
|
|
}
|
|
dispatchCallback('onScroll', event);
|
|
|
|
scrollStopTimeoutId = setTimeout(function () {
|
|
if (!_destroyed) {
|
|
//OnScrollStop:
|
|
clearTimeout(scrollStopTimeoutId);
|
|
scrollStopTimeoutId = undefined;
|
|
|
|
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
|
|
refreshScrollbarsAutoHide(false);
|
|
|
|
if (!nativeOverlayScrollbarsAreActive())
|
|
removeClass(_hostElement, _classNameHostScrolling);
|
|
|
|
dispatchCallback('onScrollStop', event);
|
|
}
|
|
}, scrollStopDelay);
|
|
}
|
|
}
|
|
|
|
|
|
if (_isTextarea) {
|
|
if (_msieVersion > 9 || !_autoUpdateRecommended) {
|
|
addDestroyEventListener(_targetElement, 'input', updateTextarea);
|
|
}
|
|
else {
|
|
addDestroyEventListener(_targetElement,
|
|
[_strKeyDownEvent, _strKeyUpEvent],
|
|
[textareaOnKeyDown, textareaOnKeyUp]);
|
|
}
|
|
|
|
addDestroyEventListener(_targetElement,
|
|
[_strScroll, 'drop', strFocus, strFocus + 'out'],
|
|
[textareaOnScroll, textareaOnDrop, textareaOnFocus, textareaOnFocusout]);
|
|
}
|
|
else {
|
|
addDestroyEventListener(_contentElement, _strTransitionEndEvent, contentOnTransitionEnd);
|
|
}
|
|
addDestroyEventListener(_viewportElement, _strScroll, viewportOnScroll, true);
|
|
}
|
|
|
|
|
|
//==== Scrollbars ====//
|
|
|
|
/**
|
|
* Builds or destroys all scrollbar DOM elements (scrollbar, track, handle)
|
|
* @param destroy Indicates whether the DOM shall be build or destroyed.
|
|
*/
|
|
function setupScrollbarsDOM(destroy) {
|
|
var selectOrGenerateScrollbarDOM = function (isHorizontal) {
|
|
var scrollbarClassName = isHorizontal ? _classNameScrollbarHorizontal : _classNameScrollbarVertical;
|
|
var scrollbar = selectOrGenerateDivByClass(_classNameScrollbar + _strSpace + scrollbarClassName, true);
|
|
var track = selectOrGenerateDivByClass(_classNameScrollbarTrack, scrollbar);
|
|
var handle = selectOrGenerateDivByClass(_classNameScrollbarHandle, scrollbar);
|
|
|
|
if (!_domExists && !destroy) {
|
|
scrollbar.append(track);
|
|
track.append(handle);
|
|
}
|
|
|
|
return {
|
|
_scrollbar: scrollbar,
|
|
_track: track,
|
|
_handle: handle
|
|
};
|
|
};
|
|
function resetScrollbarDOM(isHorizontal) {
|
|
var scrollbarVars = getScrollbarVars(isHorizontal);
|
|
var scrollbar = scrollbarVars._scrollbar;
|
|
var track = scrollbarVars._track;
|
|
var handle = scrollbarVars._handle;
|
|
|
|
if (_domExists && _initialized) {
|
|
each([scrollbar, track, handle], function (i, elm) {
|
|
removeClass(elm.removeAttr(LEXICON.s), _classNamesDynamicDestroy);
|
|
});
|
|
}
|
|
else {
|
|
remove(scrollbar || selectOrGenerateScrollbarDOM(isHorizontal)._scrollbar);
|
|
}
|
|
}
|
|
var horizontalElements;
|
|
var verticalElements;
|
|
|
|
if (!destroy) {
|
|
horizontalElements = selectOrGenerateScrollbarDOM(true);
|
|
verticalElements = selectOrGenerateScrollbarDOM();
|
|
|
|
_scrollbarHorizontalElement = horizontalElements._scrollbar;
|
|
_scrollbarHorizontalTrackElement = horizontalElements._track;
|
|
_scrollbarHorizontalHandleElement = horizontalElements._handle;
|
|
_scrollbarVerticalElement = verticalElements._scrollbar;
|
|
_scrollbarVerticalTrackElement = verticalElements._track;
|
|
_scrollbarVerticalHandleElement = verticalElements._handle;
|
|
|
|
if (!_domExists) {
|
|
_paddingElement.after(_scrollbarVerticalElement);
|
|
_paddingElement.after(_scrollbarHorizontalElement);
|
|
}
|
|
}
|
|
else {
|
|
resetScrollbarDOM(true);
|
|
resetScrollbarDOM();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initializes all scrollbar interactivity events. (track and handle dragging, clicking, scrolling)
|
|
* @param isHorizontal True if the target scrollbar is the horizontal scrollbar, false if the target scrollbar is the vertical scrollbar.
|
|
*/
|
|
function setupScrollbarEvents(isHorizontal) {
|
|
var scrollbarVars = getScrollbarVars(isHorizontal);
|
|
var scrollbarVarsInfo = scrollbarVars._info;
|
|
var insideIFrame = _windowElementNative.top !== _windowElementNative;
|
|
var xy = scrollbarVars._x_y;
|
|
var XY = scrollbarVars._X_Y;
|
|
var scroll = _strScroll + scrollbarVars._Left_Top;
|
|
var strActive = 'active';
|
|
var strSnapHandle = 'snapHandle';
|
|
var strClickEvent = 'click';
|
|
var scrollDurationFactor = 1;
|
|
var increaseDecreaseScrollAmountKeyCodes = [16, 17]; //shift, ctrl
|
|
var trackTimeout;
|
|
var mouseDownScroll;
|
|
var mouseDownOffset;
|
|
var mouseDownInvertedScale;
|
|
|
|
function getPointerPosition(event) {
|
|
return _msieVersion && insideIFrame ? event['screen' + XY] : COMPATIBILITY.page(event)[xy]; //use screen coordinates in EDGE & IE because the page values are incorrect in frames.
|
|
}
|
|
function getPreparedScrollbarsOption(name) {
|
|
return _currentPreparedOptions.scrollbars[name];
|
|
}
|
|
function increaseTrackScrollAmount() {
|
|
scrollDurationFactor = 0.5;
|
|
}
|
|
function decreaseTrackScrollAmount() {
|
|
scrollDurationFactor = 1;
|
|
}
|
|
function stopClickEventPropagation(event) {
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
function documentKeyDown(event) {
|
|
if (inArray(event.keyCode, increaseDecreaseScrollAmountKeyCodes) > -1)
|
|
increaseTrackScrollAmount();
|
|
}
|
|
function documentKeyUp(event) {
|
|
if (inArray(event.keyCode, increaseDecreaseScrollAmountKeyCodes) > -1)
|
|
decreaseTrackScrollAmount();
|
|
}
|
|
function onMouseTouchDownContinue(event) {
|
|
var originalEvent = event.originalEvent || event;
|
|
var isTouchEvent = originalEvent.touches !== undefined;
|
|
return _sleeping || _destroyed || nativeOverlayScrollbarsAreActive() || !_scrollbarsDragScrollingCache || (isTouchEvent && !getPreparedScrollbarsOption('touchSupport')) ? false : COMPATIBILITY.mBtn(event) === 1 || isTouchEvent;
|
|
}
|
|
function documentDragMove(event) {
|
|
if (onMouseTouchDownContinue(event)) {
|
|
var trackLength = scrollbarVarsInfo._trackLength;
|
|
var handleLength = scrollbarVarsInfo._handleLength;
|
|
var scrollRange = scrollbarVarsInfo._maxScroll;
|
|
var scrollRaw = (getPointerPosition(event) - mouseDownOffset) * mouseDownInvertedScale;
|
|
var scrollDeltaPercent = scrollRaw / (trackLength - handleLength);
|
|
var scrollDelta = (scrollRange * scrollDeltaPercent);
|
|
scrollDelta = isFinite(scrollDelta) ? scrollDelta : 0;
|
|
if (_isRTL && isHorizontal && !_rtlScrollBehavior.i)
|
|
scrollDelta *= -1;
|
|
|
|
_viewportElement[scroll](MATH.round(mouseDownScroll + scrollDelta));
|
|
|
|
if (_scrollbarsHandlesDefineScrollPos)
|
|
refreshScrollbarHandleOffset(isHorizontal, mouseDownScroll + scrollDelta);
|
|
|
|
if (!_supportPassiveEvents)
|
|
COMPATIBILITY.prvD(event);
|
|
}
|
|
else
|
|
documentMouseTouchUp(event);
|
|
}
|
|
function documentMouseTouchUp(event) {
|
|
event = event || event.originalEvent;
|
|
|
|
setupResponsiveEventListener(_documentElement,
|
|
[_strMouseTouchMoveEvent, _strMouseTouchUpEvent, _strKeyDownEvent, _strKeyUpEvent, _strSelectStartEvent],
|
|
[documentDragMove, documentMouseTouchUp, documentKeyDown, documentKeyUp, documentOnSelectStart],
|
|
true);
|
|
COMPATIBILITY.rAF()(function() {
|
|
setupResponsiveEventListener(_documentElement, strClickEvent, stopClickEventPropagation, true, { _capture: true });
|
|
});
|
|
|
|
|
|
if (_scrollbarsHandlesDefineScrollPos)
|
|
refreshScrollbarHandleOffset(isHorizontal, true);
|
|
|
|
_scrollbarsHandlesDefineScrollPos = false;
|
|
removeClass(_bodyElement, _classNameDragging);
|
|
removeClass(scrollbarVars._handle, strActive);
|
|
removeClass(scrollbarVars._track, strActive);
|
|
removeClass(scrollbarVars._scrollbar, strActive);
|
|
|
|
mouseDownScroll = undefined;
|
|
mouseDownOffset = undefined;
|
|
mouseDownInvertedScale = 1;
|
|
|
|
decreaseTrackScrollAmount();
|
|
|
|
if (trackTimeout !== undefined) {
|
|
_base.scrollStop();
|
|
clearTimeout(trackTimeout);
|
|
trackTimeout = undefined;
|
|
}
|
|
|
|
if (event) {
|
|
var rect = _hostElementNative[LEXICON.bCR]();
|
|
var mouseInsideHost = event.clientX >= rect.left && event.clientX <= rect.right && event.clientY >= rect.top && event.clientY <= rect.bottom;
|
|
|
|
//if mouse is outside host element
|
|
if (!mouseInsideHost)
|
|
hostOnMouseLeave();
|
|
|
|
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
|
|
refreshScrollbarsAutoHide(false);
|
|
}
|
|
}
|
|
function onHandleMouseTouchDown(event) {
|
|
if (onMouseTouchDownContinue(event))
|
|
onHandleMouseTouchDownAction(event);
|
|
}
|
|
function onHandleMouseTouchDownAction(event) {
|
|
mouseDownScroll = _viewportElement[scroll]();
|
|
mouseDownScroll = isNaN(mouseDownScroll) ? 0 : mouseDownScroll;
|
|
if (_isRTL && isHorizontal && !_rtlScrollBehavior.n || !_isRTL)
|
|
mouseDownScroll = mouseDownScroll < 0 ? 0 : mouseDownScroll;
|
|
|
|
mouseDownInvertedScale = getHostElementInvertedScale()[xy];
|
|
mouseDownOffset = getPointerPosition(event);
|
|
|
|
_scrollbarsHandlesDefineScrollPos = !getPreparedScrollbarsOption(strSnapHandle);
|
|
addClass(_bodyElement, _classNameDragging);
|
|
addClass(scrollbarVars._handle, strActive);
|
|
addClass(scrollbarVars._scrollbar, strActive);
|
|
|
|
setupResponsiveEventListener(_documentElement,
|
|
[_strMouseTouchMoveEvent, _strMouseTouchUpEvent, _strSelectStartEvent],
|
|
[documentDragMove, documentMouseTouchUp, documentOnSelectStart]);
|
|
COMPATIBILITY.rAF()(function() {
|
|
setupResponsiveEventListener(_documentElement, strClickEvent, stopClickEventPropagation, false, { _capture: true });
|
|
});
|
|
|
|
|
|
if (_msieVersion || !_documentMixed)
|
|
COMPATIBILITY.prvD(event);
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
function onTrackMouseTouchDown(event) {
|
|
if (onMouseTouchDownContinue(event)) {
|
|
var handleToViewportRatio = scrollbarVars._info._handleLength / Math.round(MATH.min(1, _viewportSize[scrollbarVars._w_h] / _contentScrollSizeCache[scrollbarVars._w_h]) * scrollbarVars._info._trackLength);
|
|
var scrollDistance = MATH.round(_viewportSize[scrollbarVars._w_h] * handleToViewportRatio);
|
|
var scrollBaseDuration = 270 * handleToViewportRatio;
|
|
var scrollFirstIterationDelay = 400 * handleToViewportRatio;
|
|
var trackOffset = scrollbarVars._track.offset()[scrollbarVars._left_top];
|
|
var ctrlKey = event.ctrlKey;
|
|
var instantScroll = event.shiftKey;
|
|
var instantScrollTransition = instantScroll && ctrlKey;
|
|
var isFirstIteration = true;
|
|
var easing = 'linear';
|
|
var decreaseScroll;
|
|
var finishedCondition;
|
|
var scrollActionFinsished = function (transition) {
|
|
if (_scrollbarsHandlesDefineScrollPos)
|
|
refreshScrollbarHandleOffset(isHorizontal, transition);
|
|
};
|
|
var scrollActionInstantFinished = function () {
|
|
scrollActionFinsished();
|
|
onHandleMouseTouchDownAction(event);
|
|
};
|
|
var scrollAction = function () {
|
|
if (!_destroyed) {
|
|
var mouseOffset = (mouseDownOffset - trackOffset) * mouseDownInvertedScale;
|
|
var handleOffset = scrollbarVarsInfo._handleOffset;
|
|
var trackLength = scrollbarVarsInfo._trackLength;
|
|
var handleLength = scrollbarVarsInfo._handleLength;
|
|
var scrollRange = scrollbarVarsInfo._maxScroll;
|
|
var currScroll = scrollbarVarsInfo._currentScroll;
|
|
var scrollDuration = scrollBaseDuration * scrollDurationFactor;
|
|
var timeoutDelay = isFirstIteration ? MATH.max(scrollFirstIterationDelay, scrollDuration) : scrollDuration;
|
|
var instantScrollPosition = scrollRange * ((mouseOffset - (handleLength / 2)) / (trackLength - handleLength)); // 100% * positionPercent
|
|
var rtlIsNormal = _isRTL && isHorizontal && ((!_rtlScrollBehavior.i && !_rtlScrollBehavior.n) || _normalizeRTLCache);
|
|
var decreaseScrollCondition = rtlIsNormal ? handleOffset < mouseOffset : handleOffset > mouseOffset;
|
|
var scrollObj = {};
|
|
var animationObj = {
|
|
easing: easing,
|
|
step: function (now) {
|
|
if (_scrollbarsHandlesDefineScrollPos) {
|
|
_viewportElement[scroll](now); //https://github.com/jquery/jquery/issues/4340
|
|
refreshScrollbarHandleOffset(isHorizontal, now);
|
|
}
|
|
}
|
|
};
|
|
instantScrollPosition = isFinite(instantScrollPosition) ? instantScrollPosition : 0;
|
|
instantScrollPosition = _isRTL && isHorizontal && !_rtlScrollBehavior.i ? (scrollRange - instantScrollPosition) : instantScrollPosition;
|
|
|
|
//_base.scrollStop();
|
|
|
|
if (instantScroll) {
|
|
_viewportElement[scroll](instantScrollPosition); //scroll instantly to new position
|
|
if (instantScrollTransition) {
|
|
//get the scroll position after instant scroll (in case CSS Snap Points are used) to get the correct snapped scroll position
|
|
//and the animation stops at the correct point
|
|
instantScrollPosition = _viewportElement[scroll]();
|
|
//scroll back to the position before instant scrolling so animation can be performed
|
|
_viewportElement[scroll](currScroll);
|
|
|
|
instantScrollPosition = rtlIsNormal && _rtlScrollBehavior.i ? (scrollRange - instantScrollPosition) : instantScrollPosition;
|
|
instantScrollPosition = rtlIsNormal && _rtlScrollBehavior.n ? -instantScrollPosition : instantScrollPosition;
|
|
|
|
scrollObj[xy] = instantScrollPosition;
|
|
_base.scroll(scrollObj, extendDeep(animationObj, {
|
|
duration: 130,
|
|
complete: scrollActionInstantFinished
|
|
}));
|
|
}
|
|
else
|
|
scrollActionInstantFinished();
|
|
}
|
|
else {
|
|
decreaseScroll = isFirstIteration ? decreaseScrollCondition : decreaseScroll;
|
|
finishedCondition = rtlIsNormal
|
|
? (decreaseScroll ? handleOffset + handleLength >= mouseOffset : handleOffset <= mouseOffset)
|
|
: (decreaseScroll ? handleOffset <= mouseOffset : handleOffset + handleLength >= mouseOffset);
|
|
|
|
if (finishedCondition) {
|
|
clearTimeout(trackTimeout);
|
|
_base.scrollStop();
|
|
trackTimeout = undefined;
|
|
scrollActionFinsished(true);
|
|
}
|
|
else {
|
|
trackTimeout = setTimeout(scrollAction, timeoutDelay);
|
|
|
|
scrollObj[xy] = (decreaseScroll ? '-=' : '+=') + scrollDistance;
|
|
_base.scroll(scrollObj, extendDeep(animationObj, {
|
|
duration: scrollDuration
|
|
}));
|
|
}
|
|
isFirstIteration = false;
|
|
}
|
|
}
|
|
};
|
|
if (ctrlKey)
|
|
increaseTrackScrollAmount();
|
|
|
|
mouseDownInvertedScale = getHostElementInvertedScale()[xy];
|
|
mouseDownOffset = COMPATIBILITY.page(event)[xy];
|
|
|
|
_scrollbarsHandlesDefineScrollPos = !getPreparedScrollbarsOption(strSnapHandle);
|
|
addClass(_bodyElement, _classNameDragging);
|
|
addClass(scrollbarVars._track, strActive);
|
|
addClass(scrollbarVars._scrollbar, strActive);
|
|
|
|
setupResponsiveEventListener(_documentElement,
|
|
[_strMouseTouchUpEvent, _strKeyDownEvent, _strKeyUpEvent, _strSelectStartEvent],
|
|
[documentMouseTouchUp, documentKeyDown, documentKeyUp, documentOnSelectStart]);
|
|
|
|
scrollAction();
|
|
COMPATIBILITY.prvD(event);
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
}
|
|
function onTrackMouseTouchEnter(event) {
|
|
//make sure both scrollbars will stay visible if one scrollbar is hovered if autoHide is "scroll" or "move".
|
|
_scrollbarsHandleHovered = true;
|
|
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
|
|
refreshScrollbarsAutoHide(true);
|
|
}
|
|
function onTrackMouseTouchLeave(event) {
|
|
_scrollbarsHandleHovered = false;
|
|
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
|
|
refreshScrollbarsAutoHide(false);
|
|
}
|
|
function onScrollbarMouseTouchDown(event) {
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
|
|
addDestroyEventListener(scrollbarVars._handle,
|
|
_strMouseTouchDownEvent,
|
|
onHandleMouseTouchDown);
|
|
addDestroyEventListener(scrollbarVars._track,
|
|
[_strMouseTouchDownEvent, _strMouseEnter, _strMouseLeave],
|
|
[onTrackMouseTouchDown, onTrackMouseTouchEnter, onTrackMouseTouchLeave]);
|
|
addDestroyEventListener(scrollbarVars._scrollbar,
|
|
_strMouseTouchDownEvent,
|
|
onScrollbarMouseTouchDown);
|
|
|
|
if (_supportTransition) {
|
|
addDestroyEventListener(scrollbarVars._scrollbar, _strTransitionEndEvent, function (event) {
|
|
if (event.target !== scrollbarVars._scrollbar[0])
|
|
return;
|
|
refreshScrollbarHandleLength(isHorizontal);
|
|
refreshScrollbarHandleOffset(isHorizontal);
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Shows or hides the given scrollbar and applied a class name which indicates if the scrollbar is scrollable or not.
|
|
* @param isHorizontal True if the horizontal scrollbar is the target, false if the vertical scrollbar is the target.
|
|
* @param shallBeVisible True if the scrollbar shall be shown, false if hidden.
|
|
* @param canScroll True if the scrollbar is scrollable, false otherwise.
|
|
*/
|
|
function refreshScrollbarAppearance(isHorizontal, shallBeVisible, canScroll) {
|
|
var scrollbarHiddenClassName = isHorizontal ? _classNameHostScrollbarHorizontalHidden : _classNameHostScrollbarVerticalHidden;
|
|
var scrollbarElement = isHorizontal ? _scrollbarHorizontalElement : _scrollbarVerticalElement;
|
|
|
|
addRemoveClass(_hostElement, scrollbarHiddenClassName, !shallBeVisible);
|
|
addRemoveClass(scrollbarElement, _classNameScrollbarUnusable, !canScroll);
|
|
}
|
|
|
|
/**
|
|
* Autoshows / autohides both scrollbars with.
|
|
* @param shallBeVisible True if the scrollbars shall be autoshown (only the case if they are hidden by a autohide), false if the shall be auto hidden.
|
|
* @param delayfree True if the scrollbars shall be hidden without a delay, false or undefined otherwise.
|
|
*/
|
|
function refreshScrollbarsAutoHide(shallBeVisible, delayfree) {
|
|
clearTimeout(_scrollbarsAutoHideTimeoutId);
|
|
if (shallBeVisible) {
|
|
//if(_hasOverflowCache.x && _hideOverflowCache.xs)
|
|
removeClass(_scrollbarHorizontalElement, _classNameScrollbarAutoHidden);
|
|
//if(_hasOverflowCache.y && _hideOverflowCache.ys)
|
|
removeClass(_scrollbarVerticalElement, _classNameScrollbarAutoHidden);
|
|
}
|
|
else {
|
|
var anyActive;
|
|
var strActive = 'active';
|
|
var hide = function () {
|
|
if (!_scrollbarsHandleHovered && !_destroyed) {
|
|
anyActive = _scrollbarHorizontalHandleElement.hasClass(strActive) || _scrollbarVerticalHandleElement.hasClass(strActive);
|
|
if (!anyActive && (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove || _scrollbarsAutoHideLeave))
|
|
addClass(_scrollbarHorizontalElement, _classNameScrollbarAutoHidden);
|
|
if (!anyActive && (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove || _scrollbarsAutoHideLeave))
|
|
addClass(_scrollbarVerticalElement, _classNameScrollbarAutoHidden);
|
|
}
|
|
};
|
|
if (_scrollbarsAutoHideDelay > 0 && delayfree !== true)
|
|
_scrollbarsAutoHideTimeoutId = setTimeout(hide, _scrollbarsAutoHideDelay);
|
|
else
|
|
hide();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Refreshes the handle length of the given scrollbar.
|
|
* @param isHorizontal True if the horizontal scrollbar handle shall be refreshed, false if the vertical one shall be refreshed.
|
|
*/
|
|
function refreshScrollbarHandleLength(isHorizontal) {
|
|
var handleCSS = {};
|
|
var scrollbarVars = getScrollbarVars(isHorizontal);
|
|
var scrollbarVarsInfo = scrollbarVars._info;
|
|
var digit = 1000000;
|
|
//get and apply intended handle length
|
|
var handleRatio = MATH.min(1, _viewportSize[scrollbarVars._w_h] / _contentScrollSizeCache[scrollbarVars._w_h]);
|
|
handleCSS[scrollbarVars._width_height] = (MATH.floor(handleRatio * 100 * digit) / digit) + '%'; //the last * digit / digit is for flooring to the 4th digit
|
|
|
|
if (!nativeOverlayScrollbarsAreActive())
|
|
scrollbarVars._handle.css(handleCSS);
|
|
|
|
//measure the handle length to respect min & max length
|
|
scrollbarVarsInfo._handleLength = scrollbarVars._handle[0]['offset' + scrollbarVars._Width_Height];
|
|
scrollbarVarsInfo._handleLengthRatio = handleRatio;
|
|
}
|
|
|
|
/**
|
|
* Refreshes the handle offset of the given scrollbar.
|
|
* @param isHorizontal True if the horizontal scrollbar handle shall be refreshed, false if the vertical one shall be refreshed.
|
|
* @param scrollOrTransition The scroll position of the given scrollbar axis to which the handle shall be moved or a boolean which indicates whether a transition shall be applied. If undefined or boolean if the current scroll-offset is taken. (if isHorizontal ? scrollLeft : scrollTop)
|
|
*/
|
|
function refreshScrollbarHandleOffset(isHorizontal, scrollOrTransition) {
|
|
var transition = type(scrollOrTransition) == TYPES.b;
|
|
var transitionDuration = 250;
|
|
var isRTLisHorizontal = _isRTL && isHorizontal;
|
|
var scrollbarVars = getScrollbarVars(isHorizontal);
|
|
var scrollbarVarsInfo = scrollbarVars._info;
|
|
var strTranslateBrace = 'translate(';
|
|
var strTransform = VENDORS._cssProperty('transform');
|
|
var strTransition = VENDORS._cssProperty('transition');
|
|
var nativeScroll = isHorizontal ? _viewportElement[_strScrollLeft]() : _viewportElement[_strScrollTop]();
|
|
var currentScroll = scrollOrTransition === undefined || transition ? nativeScroll : scrollOrTransition;
|
|
|
|
//measure the handle length to respect min & max length
|
|
var handleLength = scrollbarVarsInfo._handleLength;
|
|
var trackLength = scrollbarVars._track[0]['offset' + scrollbarVars._Width_Height];
|
|
var handleTrackDiff = trackLength - handleLength;
|
|
var handleCSS = {};
|
|
var transformOffset;
|
|
var translateValue;
|
|
|
|
//DONT use the variable '_contentScrollSizeCache[scrollbarVars._w_h]' instead of '_viewportElement[0]['scroll' + scrollbarVars._Width_Height]'
|
|
// because its a bit behind during the small delay when content size updates
|
|
//(delay = mutationObserverContentLag, if its 0 then this var could be used)
|
|
var maxScroll = (_viewportElementNative[_strScroll + scrollbarVars._Width_Height] - _viewportElementNative['client' + scrollbarVars._Width_Height]) * (_rtlScrollBehavior.n && isRTLisHorizontal ? -1 : 1); //* -1 if rtl scroll max is negative
|
|
var getScrollRatio = function (base) {
|
|
return isNaN(base / maxScroll) ? 0 : MATH.max(0, MATH.min(1, base / maxScroll));
|
|
};
|
|
var getHandleOffset = function (scrollRatio) {
|
|
var offset = handleTrackDiff * scrollRatio;
|
|
offset = isNaN(offset) ? 0 : offset;
|
|
offset = (isRTLisHorizontal && !_rtlScrollBehavior.i) ? (trackLength - handleLength - offset) : offset;
|
|
offset = MATH.max(0, offset);
|
|
return offset;
|
|
};
|
|
var scrollRatio = getScrollRatio(nativeScroll);
|
|
var unsnappedScrollRatio = getScrollRatio(currentScroll);
|
|
var handleOffset = getHandleOffset(unsnappedScrollRatio);
|
|
var snappedHandleOffset = getHandleOffset(scrollRatio);
|
|
|
|
scrollbarVarsInfo._maxScroll = maxScroll;
|
|
scrollbarVarsInfo._currentScroll = nativeScroll;
|
|
scrollbarVarsInfo._currentScrollRatio = scrollRatio;
|
|
|
|
if (_supportTransform) {
|
|
transformOffset = isRTLisHorizontal ? -(trackLength - handleLength - handleOffset) : handleOffset; //in px
|
|
//transformOffset = (transformOffset / trackLength * 100) * (trackLength / handleLength); //in %
|
|
translateValue = isHorizontal ? strTranslateBrace + transformOffset + 'px, 0)' : strTranslateBrace + '0, ' + transformOffset + 'px)';
|
|
|
|
handleCSS[strTransform] = translateValue;
|
|
|
|
//apply or clear up transition
|
|
if (_supportTransition)
|
|
handleCSS[strTransition] = transition && MATH.abs(handleOffset - scrollbarVarsInfo._handleOffset) > 1 ? getCSSTransitionString(scrollbarVars._handle) + ', ' + (strTransform + _strSpace + transitionDuration + 'ms') : _strEmpty;
|
|
}
|
|
else
|
|
handleCSS[scrollbarVars._left_top] = handleOffset;
|
|
|
|
|
|
//only apply css if offset has changed and overflow exists.
|
|
if (!nativeOverlayScrollbarsAreActive()) {
|
|
scrollbarVars._handle.css(handleCSS);
|
|
|
|
//clear up transition
|
|
if (_supportTransform && _supportTransition && transition) {
|
|
scrollbarVars._handle.one(_strTransitionEndEvent, function () {
|
|
if (!_destroyed)
|
|
scrollbarVars._handle.css(strTransition, _strEmpty);
|
|
});
|
|
}
|
|
}
|
|
|
|
scrollbarVarsInfo._handleOffset = handleOffset;
|
|
scrollbarVarsInfo._snappedHandleOffset = snappedHandleOffset;
|
|
scrollbarVarsInfo._trackLength = trackLength;
|
|
}
|
|
|
|
/**
|
|
* Refreshes the interactivity of the given scrollbar element.
|
|
* @param isTrack True if the track element is the target, false if the handle element is the target.
|
|
* @param value True for interactivity false for no interactivity.
|
|
*/
|
|
function refreshScrollbarsInteractive(isTrack, value) {
|
|
var action = value ? 'removeClass' : 'addClass';
|
|
var element1 = isTrack ? _scrollbarHorizontalTrackElement : _scrollbarHorizontalHandleElement;
|
|
var element2 = isTrack ? _scrollbarVerticalTrackElement : _scrollbarVerticalHandleElement;
|
|
var className = isTrack ? _classNameScrollbarTrackOff : _classNameScrollbarHandleOff;
|
|
|
|
element1[action](className);
|
|
element2[action](className);
|
|
}
|
|
|
|
/**
|
|
* Returns a object which is used for fast access for specific variables.
|
|
* @param isHorizontal True if the horizontal scrollbar vars shall be accessed, false if the vertical scrollbar vars shall be accessed.
|
|
* @returns {{wh: string, WH: string, lt: string, _wh: string, _lt: string, t: *, h: *, c: {}, s: *}}
|
|
*/
|
|
function getScrollbarVars(isHorizontal) {
|
|
return {
|
|
_width_height: isHorizontal ? _strWidth : _strHeight,
|
|
_Width_Height: isHorizontal ? 'Width' : 'Height',
|
|
_left_top: isHorizontal ? _strLeft : _strTop,
|
|
_Left_Top: isHorizontal ? 'Left' : 'Top',
|
|
_x_y: isHorizontal ? _strX : _strY,
|
|
_X_Y: isHorizontal ? 'X' : 'Y',
|
|
_w_h: isHorizontal ? 'w' : 'h',
|
|
_l_t: isHorizontal ? 'l' : 't',
|
|
_track: isHorizontal ? _scrollbarHorizontalTrackElement : _scrollbarVerticalTrackElement,
|
|
_handle: isHorizontal ? _scrollbarHorizontalHandleElement : _scrollbarVerticalHandleElement,
|
|
_scrollbar: isHorizontal ? _scrollbarHorizontalElement : _scrollbarVerticalElement,
|
|
_info: isHorizontal ? _scrollHorizontalInfo : _scrollVerticalInfo
|
|
};
|
|
}
|
|
|
|
|
|
//==== Scrollbar Corner ====//
|
|
|
|
/**
|
|
* Builds or destroys the scrollbar corner DOM element.
|
|
* @param destroy Indicates whether the DOM shall be build or destroyed.
|
|
*/
|
|
function setupScrollbarCornerDOM(destroy) {
|
|
_scrollbarCornerElement = _scrollbarCornerElement || selectOrGenerateDivByClass(_classNameScrollbarCorner, true);
|
|
|
|
if (!destroy) {
|
|
if (!_domExists) {
|
|
_hostElement.append(_scrollbarCornerElement);
|
|
}
|
|
}
|
|
else {
|
|
if (_domExists && _initialized) {
|
|
removeClass(_scrollbarCornerElement.removeAttr(LEXICON.s), _classNamesDynamicDestroy);
|
|
}
|
|
else {
|
|
remove(_scrollbarCornerElement);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initializes all scrollbar corner interactivity events.
|
|
*/
|
|
function setupScrollbarCornerEvents() {
|
|
var insideIFrame = _windowElementNative.top !== _windowElementNative;
|
|
var mouseDownPosition = {};
|
|
var mouseDownSize = {};
|
|
var mouseDownInvertedScale = {};
|
|
var reconnectMutationObserver;
|
|
|
|
function documentDragMove(event) {
|
|
if (onMouseTouchDownContinue(event)) {
|
|
var pageOffset = getCoordinates(event);
|
|
var hostElementCSS = {};
|
|
if (_resizeHorizontal || _resizeBoth)
|
|
hostElementCSS[_strWidth] = (mouseDownSize.w + (pageOffset.x - mouseDownPosition.x) * mouseDownInvertedScale.x);
|
|
if (_resizeVertical || _resizeBoth)
|
|
hostElementCSS[_strHeight] = (mouseDownSize.h + (pageOffset.y - mouseDownPosition.y) * mouseDownInvertedScale.y);
|
|
_hostElement.css(hostElementCSS);
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
else {
|
|
documentMouseTouchUp(event);
|
|
}
|
|
}
|
|
function documentMouseTouchUp(event) {
|
|
var eventIsTrusted = event !== undefined;
|
|
|
|
setupResponsiveEventListener(_documentElement,
|
|
[_strSelectStartEvent, _strMouseTouchMoveEvent, _strMouseTouchUpEvent],
|
|
[documentOnSelectStart, documentDragMove, documentMouseTouchUp],
|
|
true);
|
|
|
|
removeClass(_bodyElement, _classNameDragging);
|
|
if (_scrollbarCornerElement.releaseCapture)
|
|
_scrollbarCornerElement.releaseCapture();
|
|
|
|
if (eventIsTrusted) {
|
|
if (reconnectMutationObserver)
|
|
connectMutationObservers();
|
|
_base.update(_strAuto);
|
|
}
|
|
reconnectMutationObserver = false;
|
|
}
|
|
function onMouseTouchDownContinue(event) {
|
|
var originalEvent = event.originalEvent || event;
|
|
var isTouchEvent = originalEvent.touches !== undefined;
|
|
return _sleeping || _destroyed ? false : COMPATIBILITY.mBtn(event) === 1 || isTouchEvent;
|
|
}
|
|
function getCoordinates(event) {
|
|
return _msieVersion && insideIFrame ? { x: event.screenX, y: event.screenY } : COMPATIBILITY.page(event);
|
|
}
|
|
|
|
addDestroyEventListener(_scrollbarCornerElement, _strMouseTouchDownEvent, function (event) {
|
|
if (onMouseTouchDownContinue(event) && !_resizeNone) {
|
|
if (_mutationObserversConnected) {
|
|
reconnectMutationObserver = true;
|
|
disconnectMutationObservers();
|
|
}
|
|
|
|
mouseDownPosition = getCoordinates(event);
|
|
|
|
mouseDownSize.w = _hostElementNative[LEXICON.oW] - (!_isBorderBox ? _paddingX : 0);
|
|
mouseDownSize.h = _hostElementNative[LEXICON.oH] - (!_isBorderBox ? _paddingY : 0);
|
|
mouseDownInvertedScale = getHostElementInvertedScale();
|
|
|
|
setupResponsiveEventListener(_documentElement,
|
|
[_strSelectStartEvent, _strMouseTouchMoveEvent, _strMouseTouchUpEvent],
|
|
[documentOnSelectStart, documentDragMove, documentMouseTouchUp]);
|
|
|
|
addClass(_bodyElement, _classNameDragging);
|
|
if (_scrollbarCornerElement.setCapture)
|
|
_scrollbarCornerElement.setCapture();
|
|
|
|
COMPATIBILITY.prvD(event);
|
|
COMPATIBILITY.stpP(event);
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
//==== Utils ====//
|
|
|
|
/**
|
|
* Calls the callback with the given name. The Context of this callback is always _base (this).
|
|
* @param name The name of the target which shall be called.
|
|
* @param args The args with which the callback shall be called.
|
|
* @param dependent Boolean which decides whether the callback shall be fired, undefined is like a "true" value.
|
|
*/
|
|
function dispatchCallback(name, args, dependent) {
|
|
if (dependent === false)
|
|
return;
|
|
if (_initialized) {
|
|
var callback = _currentPreparedOptions.callbacks[name];
|
|
var extensionOnName = name;
|
|
var ext;
|
|
|
|
if (extensionOnName.substr(0, 2) === 'on')
|
|
extensionOnName = extensionOnName.substr(2, 1).toLowerCase() + extensionOnName.substr(3);
|
|
|
|
if (type(callback) == TYPES.f)
|
|
callback.call(_base, args);
|
|
|
|
each(_extensions, function () {
|
|
ext = this;
|
|
if (type(ext.on) == TYPES.f)
|
|
ext.on(extensionOnName, args);
|
|
});
|
|
}
|
|
else if (!_destroyed)
|
|
_callbacksInitQeueue.push({ n: name, a: args });
|
|
}
|
|
|
|
/**
|
|
* Sets the "top, right, bottom, left" properties, with a given prefix, of the given css object.
|
|
* @param targetCSSObject The css object to which the values shall be applied.
|
|
* @param prefix The prefix of the "top, right, bottom, left" css properties. (example: 'padding-' is a valid prefix)
|
|
* @param values A array of values which shall be applied to the "top, right, bottom, left" -properties. The array order is [top, right, bottom, left].
|
|
* If this argument is undefined the value '' (empty string) will be applied to all properties.
|
|
*/
|
|
function setTopRightBottomLeft(targetCSSObject, prefix, values) {
|
|
prefix = prefix || _strEmpty;
|
|
values = values || [_strEmpty, _strEmpty, _strEmpty, _strEmpty];
|
|
|
|
targetCSSObject[prefix + _strTop] = values[0];
|
|
targetCSSObject[prefix + _strRight] = values[1];
|
|
targetCSSObject[prefix + _strBottom] = values[2];
|
|
targetCSSObject[prefix + _strLeft] = values[3];
|
|
}
|
|
|
|
/**
|
|
* Gets the "top, right, bottom, left" CSS properties of the CSS property with the given prefix from the host element.
|
|
* @param prefix The prefix of the "top, right, bottom, left" css properties. (example: 'padding-' is a valid prefix)
|
|
* @param suffix The suffix of the "top, right, bottom, left" css properties. (example: 'border-' is a valid prefix with '-width' is a valid suffix)
|
|
* @param zeroX True if the x axis shall be 0.
|
|
* @param zeroY True if the y axis shall be 0.
|
|
* @returns {{}} The object which contains the numbers of the read CSS properties.
|
|
*/
|
|
function getTopRightBottomLeftHost(prefix, suffix, zeroX, zeroY) {
|
|
suffix = suffix || _strEmpty;
|
|
prefix = prefix || _strEmpty;
|
|
return {
|
|
t: zeroY ? 0 : parseToZeroOrNumber(_hostElement.css(prefix + _strTop + suffix)),
|
|
r: zeroX ? 0 : parseToZeroOrNumber(_hostElement.css(prefix + _strRight + suffix)),
|
|
b: zeroY ? 0 : parseToZeroOrNumber(_hostElement.css(prefix + _strBottom + suffix)),
|
|
l: zeroX ? 0 : parseToZeroOrNumber(_hostElement.css(prefix + _strLeft + suffix))
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Returns the computed CSS transition string from the given element.
|
|
* @param element The element from which the transition string shall be returned.
|
|
* @returns {string} The CSS transition string from the given element.
|
|
*/
|
|
function getCSSTransitionString(element) {
|
|
var transitionStr = VENDORS._cssProperty('transition');
|
|
var assembledValue = element.css(transitionStr);
|
|
if (assembledValue)
|
|
return assembledValue;
|
|
var regExpString = '\\s*(' + '([^,(]+(\\(.+?\\))?)+' + ')[\\s,]*';
|
|
var regExpMain = new RegExp(regExpString);
|
|
var regExpValidate = new RegExp('^(' + regExpString + ')+$');
|
|
var properties = 'property duration timing-function delay'.split(' ');
|
|
var result = [];
|
|
var strResult;
|
|
var valueArray;
|
|
var i = 0;
|
|
var j;
|
|
var splitCssStyleByComma = function (str) {
|
|
strResult = [];
|
|
if (!str.match(regExpValidate))
|
|
return str;
|
|
while (str.match(regExpMain)) {
|
|
strResult.push(RegExp.$1);
|
|
str = str.replace(regExpMain, _strEmpty);
|
|
}
|
|
|
|
return strResult;
|
|
};
|
|
for (; i < properties[LEXICON.l]; i++) {
|
|
valueArray = splitCssStyleByComma(element.css(transitionStr + '-' + properties[i]));
|
|
for (j = 0; j < valueArray[LEXICON.l]; j++)
|
|
result[j] = (result[j] ? result[j] + _strSpace : _strEmpty) + valueArray[j];
|
|
}
|
|
return result.join(', ');
|
|
}
|
|
|
|
/**
|
|
* Generates a Regular Expression which matches with a string which starts with 'os-host'.
|
|
* @param {boolean} withCurrClassNameOption The Regular Expression also matches if the string is the current ClassName option (multiple values splitted by space possible).
|
|
* @param {boolean} withOldClassNameOption The Regular Expression also matches if the string is the old ClassName option (multiple values splitted by space possible).
|
|
*/
|
|
function createHostClassNameRegExp(withCurrClassNameOption, withOldClassNameOption) {
|
|
var i;
|
|
var split;
|
|
var appendix;
|
|
var appendClasses = function (classes, condition) {
|
|
appendix = '';
|
|
if (condition && typeof classes == TYPES.s) {
|
|
split = classes.split(_strSpace);
|
|
for (i = 0; i < split[LEXICON.l]; i++)
|
|
appendix += '|' + split[i] + '$';
|
|
// split[i].replace(/[.*+?^${}()|[\]\\]/g, '\\$&') for escaping regex characters
|
|
}
|
|
return appendix;
|
|
};
|
|
|
|
return new RegExp(
|
|
'(^' + _classNameHostElement + '([-_].+|)$)' +
|
|
appendClasses(_classNameCache, withCurrClassNameOption) +
|
|
appendClasses(_oldClassName, withOldClassNameOption), 'g');
|
|
}
|
|
|
|
/**
|
|
* Calculates the host-elements inverted scale. (invertedScale = 1 / scale)
|
|
* @returns {{x: number, y: number}} The scale of the host-element.
|
|
*/
|
|
function getHostElementInvertedScale() {
|
|
var rect = _paddingElementNative[LEXICON.bCR]();
|
|
return {
|
|
x: _supportTransform ? 1 / (MATH.round(rect.width) / _paddingElementNative[LEXICON.oW]) || 1 : 1,
|
|
y: _supportTransform ? 1 / (MATH.round(rect.height) / _paddingElementNative[LEXICON.oH]) || 1 : 1
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Checks whether the given object is a HTMLElement.
|
|
* @param o The object which shall be checked.
|
|
* @returns {boolean} True the given object is a HTMLElement, false otherwise.
|
|
*/
|
|
function isHTMLElement(o) {
|
|
var strOwnerDocument = 'ownerDocument';
|
|
var strHTMLElement = 'HTMLElement';
|
|
var wnd = o && o[strOwnerDocument] ? (o[strOwnerDocument].parentWindow || window) : window;
|
|
return (
|
|
typeof wnd[strHTMLElement] == TYPES.o ? o instanceof wnd[strHTMLElement] : //DOM2
|
|
o && typeof o == TYPES.o && o !== null && o.nodeType === 1 && typeof o.nodeName == TYPES.s
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Compares 2 arrays and returns the differences between them as a array.
|
|
* @param a1 The first array which shall be compared.
|
|
* @param a2 The second array which shall be compared.
|
|
* @returns {Array} The differences between the two arrays.
|
|
*/
|
|
function getArrayDifferences(a1, a2) {
|
|
var a = [];
|
|
var diff = [];
|
|
var i;
|
|
var k;
|
|
for (i = 0; i < a1.length; i++)
|
|
a[a1[i]] = true;
|
|
for (i = 0; i < a2.length; i++) {
|
|
if (a[a2[i]])
|
|
delete a[a2[i]];
|
|
else
|
|
a[a2[i]] = true;
|
|
}
|
|
for (k in a)
|
|
diff.push(k);
|
|
return diff;
|
|
}
|
|
|
|
/**
|
|
* Returns Zero or the number to which the value can be parsed.
|
|
* @param value The value which shall be parsed.
|
|
* @param toFloat Indicates whether the number shall be parsed to a float.
|
|
*/
|
|
function parseToZeroOrNumber(value, toFloat) {
|
|
var num = toFloat ? parseFloat(value) : parseInt(value, 10);
|
|
return isNaN(num) ? 0 : num;
|
|
}
|
|
|
|
/**
|
|
* Gets several information of the textarea and returns them as a object or undefined if the browser doesn't support it.
|
|
* @returns {{cursorRow: Number, cursorCol, rows: Number, cols: number, wRow: number, pos: number, max : number}} or undefined if not supported.
|
|
*/
|
|
function getTextareaInfo() {
|
|
//read needed values
|
|
var textareaCursorPosition = _targetElementNative.selectionStart;
|
|
if (textareaCursorPosition === undefined)
|
|
return;
|
|
|
|
var textareaValue = _targetElement.val();
|
|
var textareaLength = textareaValue[LEXICON.l];
|
|
var textareaRowSplit = textareaValue.split('\n');
|
|
var textareaLastRow = textareaRowSplit[LEXICON.l];
|
|
var textareaCurrentCursorRowSplit = textareaValue.substr(0, textareaCursorPosition).split('\n');
|
|
var widestRow = 0;
|
|
var textareaLastCol = 0;
|
|
var cursorRow = textareaCurrentCursorRowSplit[LEXICON.l];
|
|
var cursorCol = textareaCurrentCursorRowSplit[textareaCurrentCursorRowSplit[LEXICON.l] - 1][LEXICON.l];
|
|
var rowCols;
|
|
var i;
|
|
|
|
//get widest Row and the last column of the textarea
|
|
for (i = 0; i < textareaRowSplit[LEXICON.l]; i++) {
|
|
rowCols = textareaRowSplit[i][LEXICON.l];
|
|
if (rowCols > textareaLastCol) {
|
|
widestRow = i + 1;
|
|
textareaLastCol = rowCols;
|
|
}
|
|
}
|
|
|
|
return {
|
|
_cursorRow: cursorRow, //cursorRow
|
|
_cursorColumn: cursorCol, //cursorCol
|
|
_rows: textareaLastRow, //rows
|
|
_columns: textareaLastCol, //cols
|
|
_widestRow: widestRow, //wRow
|
|
_cursorPosition: textareaCursorPosition, //pos
|
|
_cursorMax: textareaLength //max
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Determines whether native overlay scrollbars are active.
|
|
* @returns {boolean} True if native overlay scrollbars are active, false otherwise.
|
|
*/
|
|
function nativeOverlayScrollbarsAreActive() {
|
|
return (_ignoreOverlayScrollbarHidingCache && (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y));
|
|
}
|
|
|
|
/**
|
|
* Gets the element which is used to measure the content size.
|
|
* @returns {*} TextareaCover if target element is textarea else the ContentElement.
|
|
*/
|
|
function getContentMeasureElement() {
|
|
return _isTextarea ? _textareaCoverElement[0] : _contentElementNative;
|
|
}
|
|
|
|
/**
|
|
* Generates a string which represents a HTML div with the given classes or attributes.
|
|
* @param classesOrAttrs The class of the div as string or a object which represents the attributes of the div. (The class attribute can also be written as "className".)
|
|
* @param content The content of the div as string.
|
|
* @returns {string} The concated string which represents a HTML div and its content.
|
|
*/
|
|
function generateDiv(classesOrAttrs, content) {
|
|
return '<div ' + (classesOrAttrs ? type(classesOrAttrs) == TYPES.s ?
|
|
'class="' + classesOrAttrs + '"' :
|
|
(function () {
|
|
var key;
|
|
var attrs = _strEmpty;
|
|
if (FRAMEWORK.isPlainObject(classesOrAttrs)) {
|
|
for (key in classesOrAttrs)
|
|
attrs += (key === 'c' ? 'class' : key) + '="' + classesOrAttrs[key] + '" ';
|
|
}
|
|
return attrs;
|
|
})() :
|
|
_strEmpty) +
|
|
'>' +
|
|
(content || _strEmpty) +
|
|
'</div>';
|
|
}
|
|
|
|
/**
|
|
* Selects or generates a div with the given class attribute.
|
|
* @param className The class names (divided by spaces) of the div which shall be selected or generated.
|
|
* @param selectParentOrOnlyChildren The parent element from which of the element shall be selected. (if undefined or boolean its hostElement)
|
|
* If its a boolean it decides whether only the children of the host element shall be selected.
|
|
* @returns {*} The generated or selected element.
|
|
*/
|
|
function selectOrGenerateDivByClass(className, selectParentOrOnlyChildren) {
|
|
var onlyChildren = type(selectParentOrOnlyChildren) == TYPES.b;
|
|
var selectParent = onlyChildren ? _hostElement : (selectParentOrOnlyChildren || _hostElement);
|
|
|
|
return (_domExists && !selectParent[LEXICON.l])
|
|
? null
|
|
: _domExists
|
|
? selectParent[onlyChildren ? 'children' : 'find'](_strDot + className.replace(/\s/g, _strDot)).eq(0)
|
|
: FRAMEWORK(generateDiv(className))
|
|
}
|
|
|
|
/**
|
|
* Gets the value of the given property from the given object.
|
|
* @param obj The object from which the property value shall be got.
|
|
* @param path The property of which the value shall be got.
|
|
* @returns {*} Returns the value of the searched property or undefined of the property wasn't found.
|
|
*/
|
|
function getObjectPropVal(obj, path) {
|
|
var splits = path.split(_strDot);
|
|
var i = 0;
|
|
var val;
|
|
for (; i < splits.length; i++) {
|
|
if (!obj[LEXICON.hOP](splits[i]))
|
|
return;
|
|
val = obj[splits[i]];
|
|
if (i < splits.length && type(val) == TYPES.o)
|
|
obj = val;
|
|
}
|
|
return val;
|
|
}
|
|
|
|
/**
|
|
* Sets the value of the given property from the given object.
|
|
* @param obj The object from which the property value shall be set.
|
|
* @param path The property of which the value shall be set.
|
|
* @param val The value of the property which shall be set.
|
|
*/
|
|
function setObjectPropVal(obj, path, val) {
|
|
var splits = path.split(_strDot);
|
|
var splitsLength = splits.length;
|
|
var i = 0;
|
|
var extendObj = {};
|
|
var extendObjRoot = extendObj;
|
|
for (; i < splitsLength; i++)
|
|
extendObj = extendObj[splits[i]] = i + 1 < splitsLength ? {} : val;
|
|
FRAMEWORK.extend(obj, extendObjRoot, true);
|
|
}
|
|
|
|
/**
|
|
* Runs a action for each selector inside the updateOnLoad option.
|
|
* @param {Function} action The action for each updateOnLoad selector, the arguments the function takes is the index and the value (the selector).
|
|
*/
|
|
function eachUpdateOnLoad(action) {
|
|
var updateOnLoad = _currentPreparedOptions.updateOnLoad;
|
|
updateOnLoad = type(updateOnLoad) == TYPES.s ? updateOnLoad.split(_strSpace) : updateOnLoad;
|
|
|
|
if (COMPATIBILITY.isA(updateOnLoad) && !_destroyed) {
|
|
each(updateOnLoad, action);
|
|
}
|
|
}
|
|
|
|
|
|
//==== Utils Cache ====//
|
|
|
|
/**
|
|
* Compares two values or objects and returns true if they aren't equal.
|
|
* @param current The first value or object which shall be compared.
|
|
* @param cache The second value or object which shall be compared.
|
|
* @param force If true the returned value is always true.
|
|
* @returns {boolean} True if both values or objects aren't equal or force is true, false otherwise.
|
|
*/
|
|
function checkCache(current, cache, force) {
|
|
if (force)
|
|
return force;
|
|
if (type(current) == TYPES.o && type(cache) == TYPES.o) {
|
|
for (var prop in current) {
|
|
if (prop !== 'c') {
|
|
if (current[LEXICON.hOP](prop) && cache[LEXICON.hOP](prop)) {
|
|
if (checkCache(current[prop], cache[prop]))
|
|
return true;
|
|
}
|
|
else {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
return current !== cache;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
//==== Shortcuts ====//
|
|
|
|
/**
|
|
* jQuery extend method shortcut with a appended "true" as first argument.
|
|
*/
|
|
function extendDeep() {
|
|
return FRAMEWORK.extend.apply(this, [true].concat([].slice.call(arguments)));
|
|
}
|
|
|
|
/**
|
|
* jQuery addClass method shortcut.
|
|
*/
|
|
function addClass(el, classes) {
|
|
return _frameworkProto.addClass.call(el, classes);
|
|
}
|
|
|
|
/**
|
|
* jQuery removeClass method shortcut.
|
|
*/
|
|
function removeClass(el, classes) {
|
|
return _frameworkProto.removeClass.call(el, classes);
|
|
}
|
|
|
|
/**
|
|
* Adds or removes the given classes dependent on the boolean value. True for add, false for remove.
|
|
*/
|
|
function addRemoveClass(el, classes, doAdd) {
|
|
return doAdd ? addClass(el, classes) : removeClass(el, classes);
|
|
}
|
|
|
|
/**
|
|
* jQuery remove method shortcut.
|
|
*/
|
|
function remove(el) {
|
|
return _frameworkProto.remove.call(el);
|
|
}
|
|
|
|
/**
|
|
* Finds the first child element with the given selector of the given element.
|
|
* @param el The root element from which the selector shall be valid.
|
|
* @param selector The selector of the searched element.
|
|
* @returns {*} The first element which is a child of the given element and matches the givens selector.
|
|
*/
|
|
function findFirst(el, selector) {
|
|
return _frameworkProto.find.call(el, selector).eq(0);
|
|
}
|
|
|
|
|
|
//==== API ====//
|
|
|
|
/**
|
|
* Puts the instance to sleep. It wont respond to any changes in the DOM and won't update. Scrollbar Interactivity is also disabled as well as the resize handle.
|
|
* This behavior can be reset by calling the update method.
|
|
*/
|
|
_base.sleep = function () {
|
|
_sleeping = true;
|
|
};
|
|
|
|
/**
|
|
* Updates the plugin and DOM to the current options.
|
|
* This method should only be called if a update is 100% required.
|
|
* @param force True if every property shall be updated and the cache shall be ignored.
|
|
* !INTERNAL USAGE! : force can be a string "auto", "sync" or "zoom" too
|
|
* if "auto" then before a real update the content size and host element attributes gets checked, and if they changed only then the update method will be called.
|
|
* if "sync" then the async update process (MutationObserver or UpdateLoop) gets synchronized and a corresponding update takes place if one was needed due to pending changes.
|
|
* if "zoom" then a update takes place where it's assumed that content and host size changed
|
|
* @returns {boolean|undefined}
|
|
* If force is "sync" then a boolean is returned which indicates whether a update was needed due to pending changes.
|
|
* If force is "auto" then a boolean is returned whether a update was needed due to attribute or size changes.
|
|
* undefined otherwise.
|
|
*/
|
|
_base.update = function (force) {
|
|
if (_destroyed)
|
|
return;
|
|
|
|
var attrsChanged;
|
|
var contentSizeC;
|
|
var isString = type(force) == TYPES.s;
|
|
var doUpdateAuto;
|
|
var mutHost;
|
|
var mutContent;
|
|
|
|
if (isString) {
|
|
if (force === _strAuto) {
|
|
attrsChanged = meaningfulAttrsChanged();
|
|
contentSizeC = updateAutoContentSizeChanged();
|
|
doUpdateAuto = attrsChanged || contentSizeC;
|
|
if (doUpdateAuto) {
|
|
update({
|
|
_contentSizeChanged: contentSizeC,
|
|
_changedOptions: _initialized ? undefined : _currentPreparedOptions
|
|
});
|
|
}
|
|
}
|
|
else if (force === _strSync) {
|
|
if (_mutationObserversConnected) {
|
|
mutHost = _mutationObserverHostCallback(_mutationObserverHost.takeRecords());
|
|
mutContent = _mutationObserverContentCallback(_mutationObserverContent.takeRecords());
|
|
}
|
|
else {
|
|
mutHost = _base.update(_strAuto);
|
|
}
|
|
}
|
|
else if (force === 'zoom') {
|
|
update({
|
|
_hostSizeChanged: true,
|
|
_contentSizeChanged: true
|
|
});
|
|
}
|
|
}
|
|
else {
|
|
force = _sleeping || force;
|
|
_sleeping = false;
|
|
if (!_base.update(_strSync) || force)
|
|
update({ _force: force });
|
|
}
|
|
|
|
updateElementsOnLoad();
|
|
|
|
return doUpdateAuto || mutHost || mutContent;
|
|
};
|
|
|
|
/**
|
|
Gets or sets the current options. The update method will be called automatically if new options were set.
|
|
* @param newOptions If new options are given, then the new options will be set, if new options aren't given (undefined or a not a plain object) then the current options will be returned.
|
|
* @param value If new options is a property path string, then this value will be used to set the option to which the property path string leads.
|
|
* @returns {*}
|
|
*/
|
|
_base.options = function (newOptions, value) {
|
|
var option = {};
|
|
var changedOps;
|
|
|
|
//return current options if newOptions are undefined or empty
|
|
if (FRAMEWORK.isEmptyObject(newOptions) || !FRAMEWORK.isPlainObject(newOptions)) {
|
|
if (type(newOptions) == TYPES.s) {
|
|
if (arguments.length > 1) {
|
|
setObjectPropVal(option, newOptions, value);
|
|
changedOps = setOptions(option);
|
|
}
|
|
else
|
|
return getObjectPropVal(_currentOptions, newOptions);
|
|
}
|
|
else
|
|
return _currentOptions;
|
|
}
|
|
else {
|
|
changedOps = setOptions(newOptions);
|
|
}
|
|
|
|
if (!FRAMEWORK.isEmptyObject(changedOps)) {
|
|
update({ _changedOptions: changedOps });
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Restore the DOM, disconnects all observers, remove all resize observers and put the instance to sleep.
|
|
*/
|
|
_base.destroy = function () {
|
|
if (_destroyed)
|
|
return;
|
|
|
|
//remove this instance from auto update loop
|
|
autoUpdateLoop.remove(_base);
|
|
|
|
//disconnect all mutation observers
|
|
disconnectMutationObservers();
|
|
|
|
//remove all resize observers
|
|
setupResizeObserver(_sizeObserverElement);
|
|
setupResizeObserver(_sizeAutoObserverElement);
|
|
|
|
//remove all extensions
|
|
for (var extName in _extensions)
|
|
_base.removeExt(extName);
|
|
|
|
//remove all 'destroy' events
|
|
while (_destroyEvents[LEXICON.l] > 0)
|
|
_destroyEvents.pop()();
|
|
|
|
//remove all events from host element
|
|
setupHostMouseTouchEvents(true);
|
|
|
|
//remove all helper / detection elements
|
|
if (_contentGlueElement)
|
|
remove(_contentGlueElement);
|
|
if (_contentArrangeElement)
|
|
remove(_contentArrangeElement);
|
|
if (_sizeAutoObserverAdded)
|
|
remove(_sizeAutoObserverElement);
|
|
|
|
//remove all generated DOM
|
|
setupScrollbarsDOM(true);
|
|
setupScrollbarCornerDOM(true);
|
|
setupStructureDOM(true);
|
|
|
|
//remove all generated image load events
|
|
for (var i = 0; i < _updateOnLoadElms[LEXICON.l]; i++)
|
|
FRAMEWORK(_updateOnLoadElms[i]).off(_updateOnLoadEventName, updateOnLoadCallback);
|
|
_updateOnLoadElms = undefined;
|
|
|
|
_destroyed = true;
|
|
_sleeping = true;
|
|
|
|
//remove this instance from the instances list
|
|
INSTANCES(pluginTargetElement, 0);
|
|
dispatchCallback('onDestroyed');
|
|
|
|
//remove all properties and methods
|
|
//for (var property in _base)
|
|
// delete _base[property];
|
|
//_base = undefined;
|
|
};
|
|
|
|
/**
|
|
* Scrolls to a given position or element.
|
|
* @param coordinates
|
|
* 1. Can be "coordinates" which looks like:
|
|
* { x : ?, y : ? } OR Object with x and y properties
|
|
* { left : ?, top : ? } OR Object with left and top properties
|
|
* { l : ?, t : ? } OR Object with l and t properties
|
|
* [ ?, ? ] OR Array where the first two element are the coordinates (first is x, second is y)
|
|
* ? A single value which stays for both axis
|
|
* A value can be a number, a string or a calculation.
|
|
*
|
|
* Operators:
|
|
* [NONE] The current scroll will be overwritten by the value.
|
|
* '+=' The value will be added to the current scroll offset
|
|
* '-=' The value will be subtracted from the current scroll offset
|
|
* '*=' The current scroll wil be multiplicated by the value.
|
|
* '/=' The current scroll wil be divided by the value.
|
|
*
|
|
* Units:
|
|
* [NONE] The value is the final scroll amount. final = (value * 1)
|
|
* 'px' Same as none
|
|
* '%' The value is dependent on the current scroll value. final = ((currentScrollValue / 100) * value)
|
|
* 'vw' The value is multiplicated by the viewport width. final = (value * viewportWidth)
|
|
* 'vh' The value is multiplicated by the viewport height. final = (value * viewportHeight)
|
|
*
|
|
* example final values:
|
|
* 200, '200px', '50%', '1vw', '1vh', '+=200', '/=1vw', '*=2px', '-=5vh', '+=33%', '+= 50% - 2px', '-= 1vw - 50%'
|
|
*
|
|
* 2. Can be a HTML or jQuery element:
|
|
* The final scroll offset is the offset (without margin) of the given HTML / jQuery element.
|
|
*
|
|
* 3. Can be a object with a HTML or jQuery element with additional settings:
|
|
* {
|
|
* el : [HTMLElement, jQuery element], MUST be specified, else this object isn't valid.
|
|
* scroll : [string, array, object], Default value is 'always'.
|
|
* block : [string, array, object], Default value is 'begin'.
|
|
* margin : [number, boolean, array, object] Default value is false.
|
|
* }
|
|
*
|
|
* Possible scroll settings are:
|
|
* 'always' Scrolls always.
|
|
* 'ifneeded' Scrolls only if the element isnt fully in view.
|
|
* 'never' Scrolls never.
|
|
*
|
|
* Possible block settings are:
|
|
* 'begin' Both axis shall be docked to the "begin" edge. - The element will be docked to the top and left edge of the viewport.
|
|
* 'end' Both axis shall be docked to the "end" edge. - The element will be docked to the bottom and right edge of the viewport. (If direction is RTL to the bottom and left edge.)
|
|
* 'center' Both axis shall be docked to "center". - The element will be centered in the viewport.
|
|
* 'nearest' The element will be docked to the nearest edge(s).
|
|
*
|
|
* Possible margin settings are: -- The actual margin of the element wont be affect, this option affects only the final scroll offset.
|
|
* [BOOLEAN] If true the css margin of the element will be used, if false no margin will be used.
|
|
* [NUMBER] The margin will be used for all edges.
|
|
*
|
|
* @param duration The duration of the scroll animation, OR a jQuery animation configuration object.
|
|
* @param easing The animation easing.
|
|
* @param complete The animation complete callback.
|
|
* @returns {{
|
|
* position: {x: number, y: number},
|
|
* ratio: {x: number, y: number},
|
|
* max: {x: number, y: number},
|
|
* handleOffset: {x: number, y: number},
|
|
* handleLength: {x: number, y: number},
|
|
* handleLengthRatio: {x: number, y: number}, t
|
|
* rackLength: {x: number, y: number},
|
|
* isRTL: boolean,
|
|
* isRTLNormalized: boolean
|
|
* }}
|
|
*/
|
|
_base.scroll = function (coordinates, duration, easing, complete) {
|
|
if (arguments.length === 0 || coordinates === undefined) {
|
|
var infoX = _scrollHorizontalInfo;
|
|
var infoY = _scrollVerticalInfo;
|
|
var normalizeInvert = _normalizeRTLCache && _isRTL && _rtlScrollBehavior.i;
|
|
var normalizeNegate = _normalizeRTLCache && _isRTL && _rtlScrollBehavior.n;
|
|
var scrollX = infoX._currentScroll;
|
|
var scrollXRatio = infoX._currentScrollRatio;
|
|
var maxScrollX = infoX._maxScroll;
|
|
scrollXRatio = normalizeInvert ? 1 - scrollXRatio : scrollXRatio;
|
|
scrollX = normalizeInvert ? maxScrollX - scrollX : scrollX;
|
|
scrollX *= normalizeNegate ? -1 : 1;
|
|
maxScrollX *= normalizeNegate ? -1 : 1;
|
|
|
|
return {
|
|
position: {
|
|
x: scrollX,
|
|
y: infoY._currentScroll
|
|
},
|
|
ratio: {
|
|
x: scrollXRatio,
|
|
y: infoY._currentScrollRatio
|
|
},
|
|
max: {
|
|
x: maxScrollX,
|
|
y: infoY._maxScroll
|
|
},
|
|
handleOffset: {
|
|
x: infoX._handleOffset,
|
|
y: infoY._handleOffset
|
|
},
|
|
handleLength: {
|
|
x: infoX._handleLength,
|
|
y: infoY._handleLength
|
|
},
|
|
handleLengthRatio: {
|
|
x: infoX._handleLengthRatio,
|
|
y: infoY._handleLengthRatio
|
|
},
|
|
trackLength: {
|
|
x: infoX._trackLength,
|
|
y: infoY._trackLength
|
|
},
|
|
snappedHandleOffset: {
|
|
x: infoX._snappedHandleOffset,
|
|
y: infoY._snappedHandleOffset
|
|
},
|
|
isRTL: _isRTL,
|
|
isRTLNormalized: _normalizeRTLCache
|
|
};
|
|
}
|
|
|
|
_base.update(_strSync);
|
|
|
|
var normalizeRTL = _normalizeRTLCache;
|
|
var coordinatesXAxisProps = [_strX, _strLeft, 'l'];
|
|
var coordinatesYAxisProps = [_strY, _strTop, 't'];
|
|
var coordinatesOperators = ['+=', '-=', '*=', '/='];
|
|
var durationIsObject = type(duration) == TYPES.o;
|
|
var completeCallback = durationIsObject ? duration.complete : complete;
|
|
var i;
|
|
var finalScroll = {};
|
|
var specialEasing = {};
|
|
var doScrollLeft;
|
|
var doScrollTop;
|
|
var animationOptions;
|
|
var strEnd = 'end';
|
|
var strBegin = 'begin';
|
|
var strCenter = 'center';
|
|
var strNearest = 'nearest';
|
|
var strAlways = 'always';
|
|
var strNever = 'never';
|
|
var strIfNeeded = 'ifneeded';
|
|
var strLength = LEXICON.l;
|
|
var settingsAxis;
|
|
var settingsScroll;
|
|
var settingsBlock;
|
|
var settingsMargin;
|
|
var finalElement;
|
|
var elementObjSettingsAxisValues = [_strX, _strY, 'xy', 'yx'];
|
|
var elementObjSettingsBlockValues = [strBegin, strEnd, strCenter, strNearest];
|
|
var elementObjSettingsScrollValues = [strAlways, strNever, strIfNeeded];
|
|
var coordinatesIsElementObj = coordinates[LEXICON.hOP]('el');
|
|
var possibleElement = coordinatesIsElementObj ? coordinates.el : coordinates;
|
|
var possibleElementIsJQuery = possibleElement instanceof FRAMEWORK || JQUERY ? possibleElement instanceof JQUERY : false;
|
|
var possibleElementIsHTMLElement = possibleElementIsJQuery ? false : isHTMLElement(possibleElement);
|
|
var updateScrollbarInfos = function () {
|
|
if (doScrollLeft)
|
|
refreshScrollbarHandleOffset(true);
|
|
if (doScrollTop)
|
|
refreshScrollbarHandleOffset(false);
|
|
};
|
|
var proxyCompleteCallback = type(completeCallback) != TYPES.f ? undefined : function () {
|
|
updateScrollbarInfos();
|
|
completeCallback();
|
|
};
|
|
function checkSettingsStringValue(currValue, allowedValues) {
|
|
for (i = 0; i < allowedValues[strLength]; i++) {
|
|
if (currValue === allowedValues[i])
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
function getRawScroll(isX, coordinates) {
|
|
var coordinateProps = isX ? coordinatesXAxisProps : coordinatesYAxisProps;
|
|
coordinates = type(coordinates) == TYPES.s || type(coordinates) == TYPES.n ? [coordinates, coordinates] : coordinates;
|
|
|
|
if (COMPATIBILITY.isA(coordinates))
|
|
return isX ? coordinates[0] : coordinates[1];
|
|
else if (type(coordinates) == TYPES.o) {
|
|
//decides RTL normalization "hack" with .n
|
|
//normalizeRTL = type(coordinates.n) == TYPES.b ? coordinates.n : normalizeRTL;
|
|
for (i = 0; i < coordinateProps[strLength]; i++)
|
|
if (coordinateProps[i] in coordinates)
|
|
return coordinates[coordinateProps[i]];
|
|
}
|
|
}
|
|
function getFinalScroll(isX, rawScroll) {
|
|
var isString = type(rawScroll) == TYPES.s;
|
|
var operator;
|
|
var amount;
|
|
var scrollInfo = isX ? _scrollHorizontalInfo : _scrollVerticalInfo;
|
|
var currScroll = scrollInfo._currentScroll;
|
|
var maxScroll = scrollInfo._maxScroll;
|
|
var mult = ' * ';
|
|
var finalValue;
|
|
var isRTLisX = _isRTL && isX;
|
|
var normalizeShortcuts = isRTLisX && _rtlScrollBehavior.n && !normalizeRTL;
|
|
var strReplace = 'replace';
|
|
var evalFunc = eval;
|
|
var possibleOperator;
|
|
if (isString) {
|
|
//check operator
|
|
if (rawScroll[strLength] > 2) {
|
|
possibleOperator = rawScroll.substr(0, 2);
|
|
if (inArray(possibleOperator, coordinatesOperators) > -1)
|
|
operator = possibleOperator;
|
|
}
|
|
|
|
//calculate units and shortcuts
|
|
rawScroll = operator ? rawScroll.substr(2) : rawScroll;
|
|
rawScroll = rawScroll
|
|
[strReplace](/min/g, 0) //'min' = 0%
|
|
[strReplace](/</g, 0) //'<' = 0%
|
|
[strReplace](/max/g, (normalizeShortcuts ? '-' : _strEmpty) + _strHundredPercent) //'max' = 100%
|
|
[strReplace](/>/g, (normalizeShortcuts ? '-' : _strEmpty) + _strHundredPercent) //'>' = 100%
|
|
[strReplace](/px/g, _strEmpty)
|
|
[strReplace](/%/g, mult + (maxScroll * (isRTLisX && _rtlScrollBehavior.n ? -1 : 1) / 100.0))
|
|
[strReplace](/vw/g, mult + _viewportSize.w)
|
|
[strReplace](/vh/g, mult + _viewportSize.h);
|
|
amount = parseToZeroOrNumber(isNaN(rawScroll) ? parseToZeroOrNumber(evalFunc(rawScroll), true).toFixed() : rawScroll);
|
|
}
|
|
else {
|
|
amount = rawScroll;
|
|
}
|
|
|
|
if (amount !== undefined && !isNaN(amount) && type(amount) == TYPES.n) {
|
|
var normalizeIsRTLisX = normalizeRTL && isRTLisX;
|
|
var operatorCurrScroll = currScroll * (normalizeIsRTLisX && _rtlScrollBehavior.n ? -1 : 1);
|
|
var invert = normalizeIsRTLisX && _rtlScrollBehavior.i;
|
|
var negate = normalizeIsRTLisX && _rtlScrollBehavior.n;
|
|
operatorCurrScroll = invert ? (maxScroll - operatorCurrScroll) : operatorCurrScroll;
|
|
switch (operator) {
|
|
case '+=':
|
|
finalValue = operatorCurrScroll + amount;
|
|
break;
|
|
case '-=':
|
|
finalValue = operatorCurrScroll - amount;
|
|
break;
|
|
case '*=':
|
|
finalValue = operatorCurrScroll * amount;
|
|
break;
|
|
case '/=':
|
|
finalValue = operatorCurrScroll / amount;
|
|
break;
|
|
default:
|
|
finalValue = amount;
|
|
break;
|
|
}
|
|
finalValue = invert ? maxScroll - finalValue : finalValue;
|
|
finalValue *= negate ? -1 : 1;
|
|
finalValue = isRTLisX && _rtlScrollBehavior.n ? MATH.min(0, MATH.max(maxScroll, finalValue)) : MATH.max(0, MATH.min(maxScroll, finalValue));
|
|
}
|
|
return finalValue === currScroll ? undefined : finalValue;
|
|
}
|
|
function getPerAxisValue(value, valueInternalType, defaultValue, allowedValues) {
|
|
var resultDefault = [defaultValue, defaultValue];
|
|
var valueType = type(value);
|
|
var valueArrLength;
|
|
var valueArrItem;
|
|
|
|
//value can be [ string, or array of two strings ]
|
|
if (valueType == valueInternalType) {
|
|
value = [value, value];
|
|
}
|
|
else if (valueType == TYPES.a) {
|
|
valueArrLength = value[strLength];
|
|
if (valueArrLength > 2 || valueArrLength < 1)
|
|
value = resultDefault;
|
|
else {
|
|
if (valueArrLength === 1)
|
|
value[1] = defaultValue;
|
|
for (i = 0; i < valueArrLength; i++) {
|
|
valueArrItem = value[i];
|
|
if (type(valueArrItem) != valueInternalType || !checkSettingsStringValue(valueArrItem, allowedValues)) {
|
|
value = resultDefault;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (valueType == TYPES.o)
|
|
value = [value[_strX] || defaultValue, value[_strY] || defaultValue];
|
|
else
|
|
value = resultDefault;
|
|
return { x: value[0], y: value[1] };
|
|
}
|
|
function generateMargin(marginTopRightBottomLeftArray) {
|
|
var result = [];
|
|
var currValue;
|
|
var currValueType;
|
|
var valueDirections = [_strTop, _strRight, _strBottom, _strLeft];
|
|
for (i = 0; i < marginTopRightBottomLeftArray[strLength]; i++) {
|
|
if (i === valueDirections[strLength])
|
|
break;
|
|
currValue = marginTopRightBottomLeftArray[i];
|
|
currValueType = type(currValue);
|
|
if (currValueType == TYPES.b)
|
|
result.push(currValue ? parseToZeroOrNumber(finalElement.css(_strMarginMinus + valueDirections[i])) : 0);
|
|
else
|
|
result.push(currValueType == TYPES.n ? currValue : 0);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
if (possibleElementIsJQuery || possibleElementIsHTMLElement) {
|
|
//get settings
|
|
var margin = coordinatesIsElementObj ? coordinates.margin : 0;
|
|
var axis = coordinatesIsElementObj ? coordinates.axis : 0;
|
|
var scroll = coordinatesIsElementObj ? coordinates.scroll : 0;
|
|
var block = coordinatesIsElementObj ? coordinates.block : 0;
|
|
var marginDefault = [0, 0, 0, 0];
|
|
var marginType = type(margin);
|
|
var marginLength;
|
|
finalElement = possibleElementIsJQuery ? possibleElement : FRAMEWORK(possibleElement);
|
|
|
|
if (finalElement[strLength] > 0) {
|
|
//margin can be [ boolean, number, array of 2, array of 4, object ]
|
|
if (marginType == TYPES.n || marginType == TYPES.b)
|
|
margin = generateMargin([margin, margin, margin, margin]);
|
|
else if (marginType == TYPES.a) {
|
|
marginLength = margin[strLength];
|
|
if (marginLength === 2)
|
|
margin = generateMargin([margin[0], margin[1], margin[0], margin[1]]);
|
|
else if (marginLength >= 4)
|
|
margin = generateMargin(margin);
|
|
else
|
|
margin = marginDefault;
|
|
}
|
|
else if (marginType == TYPES.o)
|
|
margin = generateMargin([margin[_strTop], margin[_strRight], margin[_strBottom], margin[_strLeft]]);
|
|
else
|
|
margin = marginDefault;
|
|
|
|
//block = type(block) === TYPES.b ? block ? [ strNearest, strBegin ] : [ strNearest, strEnd ] : block;
|
|
settingsAxis = checkSettingsStringValue(axis, elementObjSettingsAxisValues) ? axis : 'xy';
|
|
settingsScroll = getPerAxisValue(scroll, TYPES.s, strAlways, elementObjSettingsScrollValues);
|
|
settingsBlock = getPerAxisValue(block, TYPES.s, strBegin, elementObjSettingsBlockValues);
|
|
settingsMargin = margin;
|
|
|
|
var viewportScroll = {
|
|
l: _scrollHorizontalInfo._currentScroll,
|
|
t: _scrollVerticalInfo._currentScroll
|
|
};
|
|
// use padding element instead of viewport element because padding element has never padding, margin or position applied.
|
|
var viewportOffset = _paddingElement.offset();
|
|
|
|
//get coordinates
|
|
var elementOffset = finalElement.offset();
|
|
var doNotScroll = {
|
|
x: settingsScroll.x == strNever || settingsAxis == _strY,
|
|
y: settingsScroll.y == strNever || settingsAxis == _strX
|
|
};
|
|
elementOffset[_strTop] -= settingsMargin[0];
|
|
elementOffset[_strLeft] -= settingsMargin[3];
|
|
var elementScrollCoordinates = {
|
|
x: MATH.round(elementOffset[_strLeft] - viewportOffset[_strLeft] + viewportScroll.l),
|
|
y: MATH.round(elementOffset[_strTop] - viewportOffset[_strTop] + viewportScroll.t)
|
|
};
|
|
if (_isRTL) {
|
|
if (!_rtlScrollBehavior.n && !_rtlScrollBehavior.i)
|
|
elementScrollCoordinates.x = MATH.round(viewportOffset[_strLeft] - elementOffset[_strLeft] + viewportScroll.l);
|
|
if (_rtlScrollBehavior.n && normalizeRTL)
|
|
elementScrollCoordinates.x *= -1;
|
|
if (_rtlScrollBehavior.i && normalizeRTL)
|
|
elementScrollCoordinates.x = MATH.round(viewportOffset[_strLeft] - elementOffset[_strLeft] + (_scrollHorizontalInfo._maxScroll - viewportScroll.l));
|
|
}
|
|
|
|
//measuring is required
|
|
if (settingsBlock.x != strBegin || settingsBlock.y != strBegin || settingsScroll.x == strIfNeeded || settingsScroll.y == strIfNeeded || _isRTL) {
|
|
var measuringElm = finalElement[0];
|
|
var rawElementSize = _supportTransform ? measuringElm[LEXICON.bCR]() : {
|
|
width: measuringElm[LEXICON.oW],
|
|
height: measuringElm[LEXICON.oH]
|
|
};
|
|
var elementSize = {
|
|
w: rawElementSize[_strWidth] + settingsMargin[3] + settingsMargin[1],
|
|
h: rawElementSize[_strHeight] + settingsMargin[0] + settingsMargin[2]
|
|
};
|
|
var finalizeBlock = function (isX) {
|
|
var vars = getScrollbarVars(isX);
|
|
var wh = vars._w_h;
|
|
var lt = vars._left_top;
|
|
var xy = vars._x_y;
|
|
var blockIsEnd = settingsBlock[xy] == (isX ? _isRTL ? strBegin : strEnd : strEnd);
|
|
var blockIsCenter = settingsBlock[xy] == strCenter;
|
|
var blockIsNearest = settingsBlock[xy] == strNearest;
|
|
var scrollNever = settingsScroll[xy] == strNever;
|
|
var scrollIfNeeded = settingsScroll[xy] == strIfNeeded;
|
|
var vpSize = _viewportSize[wh];
|
|
var vpOffset = viewportOffset[lt];
|
|
var elSize = elementSize[wh];
|
|
var elOffset = elementOffset[lt];
|
|
var divide = blockIsCenter ? 2 : 1;
|
|
var elementCenterOffset = elOffset + (elSize / 2);
|
|
var viewportCenterOffset = vpOffset + (vpSize / 2);
|
|
var isInView =
|
|
elSize <= vpSize
|
|
&& elOffset >= vpOffset
|
|
&& elOffset + elSize <= vpOffset + vpSize;
|
|
|
|
if (scrollNever)
|
|
doNotScroll[xy] = true;
|
|
else if (!doNotScroll[xy]) {
|
|
if (blockIsNearest || scrollIfNeeded) {
|
|
doNotScroll[xy] = scrollIfNeeded ? isInView : false;
|
|
blockIsEnd = elSize < vpSize ? elementCenterOffset > viewportCenterOffset : elementCenterOffset < viewportCenterOffset;
|
|
}
|
|
elementScrollCoordinates[xy] -= blockIsEnd || blockIsCenter ? ((vpSize / divide) - (elSize / divide)) * (isX && _isRTL && normalizeRTL ? -1 : 1) : 0;
|
|
}
|
|
};
|
|
finalizeBlock(true);
|
|
finalizeBlock(false);
|
|
}
|
|
|
|
if (doNotScroll.y)
|
|
delete elementScrollCoordinates.y;
|
|
if (doNotScroll.x)
|
|
delete elementScrollCoordinates.x;
|
|
|
|
coordinates = elementScrollCoordinates;
|
|
}
|
|
}
|
|
|
|
finalScroll[_strScrollLeft] = getFinalScroll(true, getRawScroll(true, coordinates));
|
|
finalScroll[_strScrollTop] = getFinalScroll(false, getRawScroll(false, coordinates));
|
|
doScrollLeft = finalScroll[_strScrollLeft] !== undefined;
|
|
doScrollTop = finalScroll[_strScrollTop] !== undefined;
|
|
|
|
if ((doScrollLeft || doScrollTop) && (duration > 0 || durationIsObject)) {
|
|
if (durationIsObject) {
|
|
duration.complete = proxyCompleteCallback;
|
|
_viewportElement.animate(finalScroll, duration);
|
|
}
|
|
else {
|
|
animationOptions = {
|
|
duration: duration,
|
|
complete: proxyCompleteCallback
|
|
};
|
|
if (COMPATIBILITY.isA(easing) || FRAMEWORK.isPlainObject(easing)) {
|
|
specialEasing[_strScrollLeft] = easing[0] || easing.x;
|
|
specialEasing[_strScrollTop] = easing[1] || easing.y;
|
|
animationOptions.specialEasing = specialEasing;
|
|
}
|
|
else {
|
|
animationOptions.easing = easing;
|
|
}
|
|
_viewportElement.animate(finalScroll, animationOptions);
|
|
}
|
|
}
|
|
else {
|
|
if (doScrollLeft)
|
|
_viewportElement[_strScrollLeft](finalScroll[_strScrollLeft]);
|
|
if (doScrollTop)
|
|
_viewportElement[_strScrollTop](finalScroll[_strScrollTop]);
|
|
updateScrollbarInfos();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Stops all scroll animations.
|
|
* @returns {*} The current OverlayScrollbars instance (for chaining).
|
|
*/
|
|
_base.scrollStop = function (param1, param2, param3) {
|
|
_viewportElement.stop(param1, param2, param3);
|
|
return _base;
|
|
};
|
|
|
|
/**
|
|
* Returns all relevant elements.
|
|
* @param elementName The name of the element which shall be returned.
|
|
* @returns {{target: *, host: *, padding: *, viewport: *, content: *, scrollbarHorizontal: {scrollbar: *, track: *, handle: *}, scrollbarVertical: {scrollbar: *, track: *, handle: *}, scrollbarCorner: *} | *}
|
|
*/
|
|
_base.getElements = function (elementName) {
|
|
var obj = {
|
|
target: _targetElementNative,
|
|
host: _hostElementNative,
|
|
padding: _paddingElementNative,
|
|
viewport: _viewportElementNative,
|
|
content: _contentElementNative,
|
|
scrollbarHorizontal: {
|
|
scrollbar: _scrollbarHorizontalElement[0],
|
|
track: _scrollbarHorizontalTrackElement[0],
|
|
handle: _scrollbarHorizontalHandleElement[0]
|
|
},
|
|
scrollbarVertical: {
|
|
scrollbar: _scrollbarVerticalElement[0],
|
|
track: _scrollbarVerticalTrackElement[0],
|
|
handle: _scrollbarVerticalHandleElement[0]
|
|
},
|
|
scrollbarCorner: _scrollbarCornerElement[0]
|
|
};
|
|
return type(elementName) == TYPES.s ? getObjectPropVal(obj, elementName) : obj;
|
|
};
|
|
|
|
/**
|
|
* Returns a object which describes the current state of this instance.
|
|
* @param stateProperty A specific property from the state object which shall be returned.
|
|
* @returns {{widthAuto, heightAuto, overflowAmount, hideOverflow, hasOverflow, contentScrollSize, viewportSize, hostSize, autoUpdate} | *}
|
|
*/
|
|
_base.getState = function (stateProperty) {
|
|
function prepare(obj) {
|
|
if (!FRAMEWORK.isPlainObject(obj))
|
|
return obj;
|
|
var extended = extendDeep({}, obj);
|
|
var changePropertyName = function (from, to) {
|
|
if (extended[LEXICON.hOP](from)) {
|
|
extended[to] = extended[from];
|
|
delete extended[from];
|
|
}
|
|
};
|
|
changePropertyName('w', _strWidth); //change w to width
|
|
changePropertyName('h', _strHeight); //change h to height
|
|
delete extended.c; //delete c (the 'changed' prop)
|
|
return extended;
|
|
};
|
|
var obj = {
|
|
destroyed: !!prepare(_destroyed),
|
|
sleeping: !!prepare(_sleeping),
|
|
autoUpdate: prepare(!_mutationObserversConnected),
|
|
widthAuto: prepare(_widthAutoCache),
|
|
heightAuto: prepare(_heightAutoCache),
|
|
padding: prepare(_cssPaddingCache),
|
|
overflowAmount: prepare(_overflowAmountCache),
|
|
hideOverflow: prepare(_hideOverflowCache),
|
|
hasOverflow: prepare(_hasOverflowCache),
|
|
contentScrollSize: prepare(_contentScrollSizeCache),
|
|
viewportSize: prepare(_viewportSize),
|
|
hostSize: prepare(_hostSizeCache),
|
|
documentMixed: prepare(_documentMixed)
|
|
};
|
|
return type(stateProperty) == TYPES.s ? getObjectPropVal(obj, stateProperty) : obj;
|
|
};
|
|
|
|
/**
|
|
* Gets all or specific extension instance.
|
|
* @param extName The name of the extension from which the instance shall be got.
|
|
* @returns {{}} The instance of the extension with the given name or undefined if the instance couldn't be found.
|
|
*/
|
|
_base.ext = function (extName) {
|
|
var result;
|
|
var privateMethods = _extensionsPrivateMethods.split(' ');
|
|
var i = 0;
|
|
if (type(extName) == TYPES.s) {
|
|
if (_extensions[LEXICON.hOP](extName)) {
|
|
result = extendDeep({}, _extensions[extName]);
|
|
for (; i < privateMethods.length; i++)
|
|
delete result[privateMethods[i]];
|
|
}
|
|
}
|
|
else {
|
|
result = {};
|
|
for (i in _extensions)
|
|
result[i] = extendDeep({}, _base.ext(i));
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Adds a extension to this instance.
|
|
* @param extName The name of the extension which shall be added.
|
|
* @param extensionOptions The extension options which shall be used.
|
|
* @returns {{}} The instance of the added extension or undefined if the extension couldn't be added properly.
|
|
*/
|
|
_base.addExt = function (extName, extensionOptions) {
|
|
var registeredExtensionObj = _plugin.extension(extName);
|
|
var instance;
|
|
var instanceAdded;
|
|
var instanceContract;
|
|
var contractResult;
|
|
var contractFulfilled = true;
|
|
if (registeredExtensionObj) {
|
|
if (!_extensions[LEXICON.hOP](extName)) {
|
|
instance = registeredExtensionObj.extensionFactory.call(_base,
|
|
extendDeep({}, registeredExtensionObj.defaultOptions),
|
|
FRAMEWORK,
|
|
COMPATIBILITY);
|
|
|
|
if (instance) {
|
|
instanceContract = instance.contract;
|
|
if (type(instanceContract) == TYPES.f) {
|
|
contractResult = instanceContract(window);
|
|
contractFulfilled = type(contractResult) == TYPES.b ? contractResult : contractFulfilled;
|
|
}
|
|
if (contractFulfilled) {
|
|
_extensions[extName] = instance;
|
|
instanceAdded = instance.added;
|
|
if (type(instanceAdded) == TYPES.f)
|
|
instanceAdded(extensionOptions);
|
|
|
|
return _base.ext(extName);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
return _base.ext(extName);
|
|
}
|
|
else
|
|
console.warn("A extension with the name \"" + extName + "\" isn't registered.");
|
|
};
|
|
|
|
/**
|
|
* Removes a extension from this instance.
|
|
* @param extName The name of the extension which shall be removed.
|
|
* @returns {boolean} True if the extension was removed, false otherwise e.g. if the extension wasn't added before.
|
|
*/
|
|
_base.removeExt = function (extName) {
|
|
var instance = _extensions[extName];
|
|
var instanceRemoved;
|
|
if (instance) {
|
|
delete _extensions[extName];
|
|
|
|
instanceRemoved = instance.removed;
|
|
if (type(instanceRemoved) == TYPES.f)
|
|
instanceRemoved();
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Constructs the plugin.
|
|
* @param targetElement The element to which the plugin shall be applied.
|
|
* @param options The initial options of the plugin.
|
|
* @param extensions The extension(s) which shall be added right after the initialization.
|
|
* @returns {boolean} True if the plugin was successfully initialized, false otherwise.
|
|
*/
|
|
function construct(targetElement, options, extensions) {
|
|
_defaultOptions = globals.defaultOptions;
|
|
_nativeScrollbarStyling = globals.nativeScrollbarStyling;
|
|
_nativeScrollbarSize = extendDeep({}, globals.nativeScrollbarSize);
|
|
_nativeScrollbarIsOverlaid = extendDeep({}, globals.nativeScrollbarIsOverlaid);
|
|
_overlayScrollbarDummySize = extendDeep({}, globals.overlayScrollbarDummySize);
|
|
_rtlScrollBehavior = extendDeep({}, globals.rtlScrollBehavior);
|
|
|
|
//parse & set options but don't update
|
|
setOptions(extendDeep({}, _defaultOptions, options));
|
|
|
|
_cssCalc = globals.cssCalc;
|
|
_msieVersion = globals.msie;
|
|
_autoUpdateRecommended = globals.autoUpdateRecommended;
|
|
_supportTransition = globals.supportTransition;
|
|
_supportTransform = globals.supportTransform;
|
|
_supportPassiveEvents = globals.supportPassiveEvents;
|
|
_supportResizeObserver = globals.supportResizeObserver;
|
|
_supportMutationObserver = globals.supportMutationObserver;
|
|
_restrictedMeasuring = globals.restrictedMeasuring;
|
|
_documentElement = FRAMEWORK(targetElement.ownerDocument);
|
|
_documentElementNative = _documentElement[0];
|
|
_windowElement = FRAMEWORK(_documentElementNative.defaultView || _documentElementNative.parentWindow);
|
|
_windowElementNative = _windowElement[0];
|
|
_htmlElement = findFirst(_documentElement, 'html');
|
|
_bodyElement = findFirst(_htmlElement, 'body');
|
|
_targetElement = FRAMEWORK(targetElement);
|
|
_targetElementNative = _targetElement[0];
|
|
_isTextarea = _targetElement.is('textarea');
|
|
_isBody = _targetElement.is('body');
|
|
_documentMixed = _documentElementNative !== document;
|
|
|
|
/* On a div Element The if checks only whether:
|
|
* - the targetElement has the class "os-host"
|
|
* - the targetElement has a a child with the class "os-padding"
|
|
*
|
|
* If that's the case, its assumed the DOM has already the following structure:
|
|
* (The ".os-host" element is the targetElement)
|
|
*
|
|
* <div class="os-host">
|
|
* <div class="os-resize-observer-host"></div>
|
|
* <div class="os-padding">
|
|
* <div class="os-viewport">
|
|
* <div class="os-content"></div>
|
|
* </div>
|
|
* </div>
|
|
* <div class="os-scrollbar os-scrollbar-horizontal ">
|
|
* <div class="os-scrollbar-track">
|
|
* <div class="os-scrollbar-handle"></div>
|
|
* </div>
|
|
* </div>
|
|
* <div class="os-scrollbar os-scrollbar-vertical">
|
|
* <div class="os-scrollbar-track">
|
|
* <div class="os-scrollbar-handle"></div>
|
|
* </div>
|
|
* </div>
|
|
* <div class="os-scrollbar-corner"></div>
|
|
* </div>
|
|
*
|
|
* =====================================================================================
|
|
*
|
|
* On a Textarea Element The if checks only whether:
|
|
* - the targetElement has the class "os-textarea"
|
|
* - the targetElement is inside a element with the class "os-content"
|
|
*
|
|
* If that's the case, its assumed the DOM has already the following structure:
|
|
* (The ".os-textarea" (textarea) element is the targetElement)
|
|
*
|
|
* <div class="os-host-textarea">
|
|
* <div class="os-resize-observer-host"></div>
|
|
* <div class="os-padding os-text-inherit">
|
|
* <div class="os-viewport os-text-inherit">
|
|
* <div class="os-content os-text-inherit">
|
|
* <div class="os-textarea-cover"></div>
|
|
* <textarea class="os-textarea os-text-inherit"></textarea>
|
|
* </div>
|
|
* </div>
|
|
* </div>
|
|
* <div class="os-scrollbar os-scrollbar-horizontal ">
|
|
* <div class="os-scrollbar-track">
|
|
* <div class="os-scrollbar-handle"></div>
|
|
* </div>
|
|
* </div>
|
|
* <div class="os-scrollbar os-scrollbar-vertical">
|
|
* <div class="os-scrollbar-track">
|
|
* <div class="os-scrollbar-handle"></div>
|
|
* </div>
|
|
* </div>
|
|
* <div class="os-scrollbar-corner"></div>
|
|
* </div>
|
|
*/
|
|
_domExists = _isTextarea
|
|
? _targetElement.hasClass(_classNameTextareaElement) && _targetElement.parent().hasClass(_classNameContentElement)
|
|
: _targetElement.hasClass(_classNameHostElement) && _targetElement.children(_strDot + _classNamePaddingElement)[LEXICON.l];
|
|
|
|
var initBodyScroll;
|
|
var bodyMouseTouchDownListener;
|
|
|
|
//check if the plugin hasn't to be initialized
|
|
if (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y && !_currentPreparedOptions.nativeScrollbarsOverlaid.initialize) {
|
|
dispatchCallback('onInitializationWithdrawn');
|
|
if (_domExists) {
|
|
setupStructureDOM(true);
|
|
setupScrollbarsDOM(true);
|
|
setupScrollbarCornerDOM(true);
|
|
}
|
|
|
|
_destroyed = true;
|
|
_sleeping = true;
|
|
|
|
return _base;
|
|
}
|
|
|
|
if (_isBody) {
|
|
initBodyScroll = {};
|
|
initBodyScroll.l = MATH.max(_targetElement[_strScrollLeft](), _htmlElement[_strScrollLeft](), _windowElement[_strScrollLeft]());
|
|
initBodyScroll.t = MATH.max(_targetElement[_strScrollTop](), _htmlElement[_strScrollTop](), _windowElement[_strScrollTop]());
|
|
|
|
bodyMouseTouchDownListener = function () {
|
|
_viewportElement.removeAttr(LEXICON.ti);
|
|
setupResponsiveEventListener(_viewportElement, _strMouseTouchDownEvent, bodyMouseTouchDownListener, true, true);
|
|
}
|
|
}
|
|
|
|
//build OverlayScrollbars DOM
|
|
setupStructureDOM();
|
|
setupScrollbarsDOM();
|
|
setupScrollbarCornerDOM();
|
|
|
|
//create OverlayScrollbars events
|
|
setupStructureEvents();
|
|
setupScrollbarEvents(true);
|
|
setupScrollbarEvents(false);
|
|
setupScrollbarCornerEvents();
|
|
|
|
//create mutation observers
|
|
createMutationObservers();
|
|
|
|
//build resize observer for the host element
|
|
setupResizeObserver(_sizeObserverElement, hostOnResized);
|
|
|
|
if (_isBody) {
|
|
//apply the body scroll to handle it right in the update method
|
|
_viewportElement[_strScrollLeft](initBodyScroll.l)[_strScrollTop](initBodyScroll.t);
|
|
|
|
//set the focus on the viewport element so you dont have to click on the page to use keyboard keys (up / down / space) for scrolling
|
|
if (document.activeElement == targetElement && _viewportElementNative.focus) {
|
|
//set a tabindex to make the viewportElement focusable
|
|
_viewportElement.attr(LEXICON.ti, '-1');
|
|
_viewportElementNative.focus();
|
|
|
|
/* the tabindex has to be removed due to;
|
|
* If you set the tabindex attribute on an <div>, then its child content cannot be scrolled with the arrow keys unless you set tabindex on the content, too
|
|
* https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/tabindex
|
|
*/
|
|
setupResponsiveEventListener(_viewportElement, _strMouseTouchDownEvent, bodyMouseTouchDownListener, false, true);
|
|
}
|
|
}
|
|
|
|
//update for the first time & initialize cache
|
|
_base.update(_strAuto);
|
|
|
|
//the plugin is initialized now!
|
|
_initialized = true;
|
|
dispatchCallback('onInitialized');
|
|
|
|
//call all callbacks which would fire before the initialized was complete
|
|
each(_callbacksInitQeueue, function (index, value) { dispatchCallback(value.n, value.a); });
|
|
_callbacksInitQeueue = [];
|
|
|
|
//add extensions
|
|
if (type(extensions) == TYPES.s)
|
|
extensions = [extensions];
|
|
if (COMPATIBILITY.isA(extensions))
|
|
each(extensions, function (index, value) { _base.addExt(value); });
|
|
else if (FRAMEWORK.isPlainObject(extensions))
|
|
each(extensions, function (key, value) { _base.addExt(key, value); });
|
|
|
|
//add the transition class for transitions AFTER the first update & AFTER the applied extensions (for preventing unwanted transitions)
|
|
setTimeout(function () {
|
|
if (_supportTransition && !_destroyed)
|
|
addClass(_hostElement, _classNameHostTransition);
|
|
}, 333);
|
|
|
|
return _base;
|
|
}
|
|
|
|
if (_plugin.valid(construct(pluginTargetElement, options, extensions))) {
|
|
INSTANCES(pluginTargetElement, _base);
|
|
}
|
|
|
|
return _base;
|
|
}
|
|
|
|
/**
|
|
* Initializes a new OverlayScrollbarsInstance object or changes options if already initialized or returns the current instance.
|
|
* @param pluginTargetElements The elements to which the Plugin shall be initialized.
|
|
* @param options The custom options with which the plugin shall be initialized.
|
|
* @param extensions The extension(s) which shall be added right after initialization.
|
|
* @returns {*}
|
|
*/
|
|
_plugin = window[PLUGINNAME] = function (pluginTargetElements, options, extensions) {
|
|
if (arguments[LEXICON.l] === 0)
|
|
return this;
|
|
|
|
var arr = [];
|
|
var optsIsPlainObj = FRAMEWORK.isPlainObject(options);
|
|
var inst;
|
|
var result;
|
|
|
|
//pluginTargetElements is null or undefined
|
|
if (!pluginTargetElements)
|
|
return optsIsPlainObj || !options ? result : arr;
|
|
|
|
/*
|
|
pluginTargetElements will be converted to:
|
|
1. A jQueryElement Array
|
|
2. A HTMLElement Array
|
|
3. A Array with a single HTML Element
|
|
so pluginTargetElements is always a array.
|
|
*/
|
|
pluginTargetElements = pluginTargetElements[LEXICON.l] != undefined ? pluginTargetElements : [pluginTargetElements[0] || pluginTargetElements];
|
|
initOverlayScrollbarsStatics();
|
|
|
|
if (pluginTargetElements[LEXICON.l] > 0) {
|
|
if (optsIsPlainObj) {
|
|
FRAMEWORK.each(pluginTargetElements, function (i, v) {
|
|
inst = v;
|
|
if (inst !== undefined)
|
|
arr.push(OverlayScrollbarsInstance(inst, options, extensions, _pluginsGlobals, _pluginsAutoUpdateLoop));
|
|
});
|
|
}
|
|
else {
|
|
FRAMEWORK.each(pluginTargetElements, function (i, v) {
|
|
inst = INSTANCES(v);
|
|
if ((options === '!' && _plugin.valid(inst)) || (COMPATIBILITY.type(options) == TYPES.f && options(v, inst)))
|
|
arr.push(inst);
|
|
else if (options === undefined)
|
|
arr.push(inst);
|
|
});
|
|
}
|
|
result = arr[LEXICON.l] === 1 ? arr[0] : arr;
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Returns a object which contains global information about the plugin and each instance of it.
|
|
* The returned object is just a copy, that means that changes to the returned object won't have any effect to the original object.
|
|
*/
|
|
_plugin.globals = function () {
|
|
initOverlayScrollbarsStatics();
|
|
var globals = FRAMEWORK.extend(true, {}, _pluginsGlobals);
|
|
delete globals['msie'];
|
|
return globals;
|
|
};
|
|
|
|
/**
|
|
* Gets or Sets the default options for each new plugin initialization.
|
|
* @param newDefaultOptions The object with which the default options shall be extended.
|
|
*/
|
|
_plugin.defaultOptions = function (newDefaultOptions) {
|
|
initOverlayScrollbarsStatics();
|
|
var currDefaultOptions = _pluginsGlobals.defaultOptions;
|
|
if (newDefaultOptions === undefined)
|
|
return FRAMEWORK.extend(true, {}, currDefaultOptions);
|
|
|
|
//set the new default options
|
|
_pluginsGlobals.defaultOptions = FRAMEWORK.extend(true, {}, currDefaultOptions, _pluginsOptions._validate(newDefaultOptions, _pluginsOptions._template, true, currDefaultOptions)._default);
|
|
};
|
|
|
|
/**
|
|
* Checks whether the passed instance is a non-destroyed OverlayScrollbars instance.
|
|
* @param osInstance The potential OverlayScrollbars instance which shall be checked.
|
|
* @returns {boolean} True if the passed value is a non-destroyed OverlayScrollbars instance, false otherwise.
|
|
*/
|
|
_plugin.valid = function (osInstance) {
|
|
return osInstance instanceof _plugin && !osInstance.getState().destroyed;
|
|
};
|
|
|
|
/**
|
|
* Registers, Unregisters or returns a extension.
|
|
* Register: Pass the name and the extension. (defaultOptions is optional)
|
|
* Unregister: Pass the name and anything except a function as extension parameter.
|
|
* Get extension: Pass the name of the extension which shall be got.
|
|
* Get all extensions: Pass no arguments.
|
|
* @param extensionName The name of the extension which shall be registered, unregistered or returned.
|
|
* @param extension A function which generates the instance of the extension or anything other to remove a already registered extension.
|
|
* @param defaultOptions The default options which shall be used for the registered extension.
|
|
*/
|
|
_plugin.extension = function (extensionName, extension, defaultOptions) {
|
|
var extNameTypeString = COMPATIBILITY.type(extensionName) == TYPES.s;
|
|
var argLen = arguments[LEXICON.l];
|
|
var i = 0;
|
|
if (argLen < 1 || !extNameTypeString) {
|
|
//return a copy of all extension objects
|
|
return FRAMEWORK.extend(true, { length: _pluginsExtensions[LEXICON.l] }, _pluginsExtensions);
|
|
}
|
|
else if (extNameTypeString) {
|
|
if (COMPATIBILITY.type(extension) == TYPES.f) {
|
|
//register extension
|
|
_pluginsExtensions.push({
|
|
name: extensionName,
|
|
extensionFactory: extension,
|
|
defaultOptions: defaultOptions
|
|
});
|
|
}
|
|
else {
|
|
for (; i < _pluginsExtensions[LEXICON.l]; i++) {
|
|
if (_pluginsExtensions[i].name === extensionName) {
|
|
if (argLen > 1)
|
|
_pluginsExtensions.splice(i, 1); //remove extension
|
|
else
|
|
return FRAMEWORK.extend(true, {}, _pluginsExtensions[i]); //return extension with the given name
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
return _plugin;
|
|
})();
|
|
|
|
if (JQUERY && JQUERY.fn) {
|
|
/**
|
|
* The jQuery initialization interface.
|
|
* @param options The initial options for the construction of the plugin. To initialize the plugin, this option has to be a object! If it isn't a object, the instance(s) are returned and the plugin wont be initialized.
|
|
* @param extensions The extension(s) which shall be added right after initialization.
|
|
* @returns {*} After initialization it returns the jQuery element array, else it returns the instance(s) of the elements which are selected.
|
|
*/
|
|
JQUERY.fn.overlayScrollbars = function (options, extensions) {
|
|
var _elements = this;
|
|
if (JQUERY.isPlainObject(options)) {
|
|
JQUERY.each(_elements, function () { PLUGIN(this, options, extensions); });
|
|
return _elements;
|
|
}
|
|
else
|
|
return PLUGIN(_elements, options);
|
|
};
|
|
}
|
|
return PLUGIN;
|
|
}
|
|
)); |