52 lines
1.9 KiB
JavaScript
52 lines
1.9 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
|
|
// Distributed under an MIT license: https://codemirror.net/LICENSE
|
|
|
|
(function(mod) {
|
|
if (typeof exports == "object" && typeof module == "object") // CommonJS
|
|
mod(require("../../lib/codemirror"));
|
|
else if (typeof define == "function" && define.amd) // AMD
|
|
define(["../../lib/codemirror"], mod);
|
|
else // Plain browser env
|
|
mod(CodeMirror);
|
|
})(function(CodeMirror) {
|
|
"use strict";
|
|
|
|
CodeMirror.defineOption("rulers", false, function(cm, val) {
|
|
if (cm.state.rulerDiv) {
|
|
cm.state.rulerDiv.parentElement.removeChild(cm.state.rulerDiv)
|
|
cm.state.rulerDiv = null
|
|
cm.off("refresh", drawRulers)
|
|
}
|
|
if (val && val.length) {
|
|
cm.state.rulerDiv = cm.display.lineSpace.parentElement.insertBefore(document.createElement("div"), cm.display.lineSpace)
|
|
cm.state.rulerDiv.className = "CodeMirror-rulers"
|
|
drawRulers(cm)
|
|
cm.on("refresh", drawRulers)
|
|
}
|
|
});
|
|
|
|
function drawRulers(cm) {
|
|
cm.state.rulerDiv.textContent = ""
|
|
var val = cm.getOption("rulers");
|
|
var cw = cm.defaultCharWidth();
|
|
var left = cm.charCoords(CodeMirror.Pos(cm.firstLine(), 0), "div").left;
|
|
cm.state.rulerDiv.style.minHeight = (cm.display.scroller.offsetHeight + 30) + "px";
|
|
for (var i = 0; i < val.length; i++) {
|
|
var elt = document.createElement("div");
|
|
elt.className = "CodeMirror-ruler";
|
|
var col, conf = val[i];
|
|
if (typeof conf == "number") {
|
|
col = conf;
|
|
} else {
|
|
col = conf.column;
|
|
if (conf.className) elt.className += " " + conf.className;
|
|
if (conf.color) elt.style.borderColor = conf.color;
|
|
if (conf.lineStyle) elt.style.borderLeftStyle = conf.lineStyle;
|
|
if (conf.width) elt.style.borderLeftWidth = conf.width;
|
|
}
|
|
elt.style.left = (left + col * cw) + "px";
|
|
cm.state.rulerDiv.appendChild(elt)
|
|
}
|
|
}
|
|
});
|