530 lines
20 KiB
JavaScript
Executable File
530 lines
20 KiB
JavaScript
Executable File
// CodeMirror, copyright (c) by Marijn Haverbeke and others
|
|
// Distributed under an MIT license: https://codemirror.net/LICENSE
|
|
|
|
// declare global: DOMRect
|
|
|
|
(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";
|
|
|
|
var HINT_ELEMENT_CLASS = "CodeMirror-hint";
|
|
var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active";
|
|
|
|
// This is the old interface, kept around for now to stay
|
|
// backwards-compatible.
|
|
CodeMirror.showHint = function(cm, getHints, options) {
|
|
if (!getHints) return cm.showHint(options);
|
|
if (options && options.async) getHints.async = true;
|
|
var newOpts = {hint: getHints};
|
|
if (options) for (var prop in options) newOpts[prop] = options[prop];
|
|
return cm.showHint(newOpts);
|
|
};
|
|
|
|
CodeMirror.defineExtension("showHint", function(options) {
|
|
options = parseOptions(this, this.getCursor("start"), options);
|
|
var selections = this.listSelections()
|
|
if (selections.length > 1) return;
|
|
// By default, don't allow completion when something is selected.
|
|
// A hint function can have a `supportsSelection` property to
|
|
// indicate that it can handle selections.
|
|
if (this.somethingSelected()) {
|
|
if (!options.hint.supportsSelection) return;
|
|
// Don't try with cross-line selections
|
|
for (var i = 0; i < selections.length; i++)
|
|
if (selections[i].head.line != selections[i].anchor.line) return;
|
|
}
|
|
|
|
if (this.state.completionActive) this.state.completionActive.close();
|
|
var completion = this.state.completionActive = new Completion(this, options);
|
|
if (!completion.options.hint) return;
|
|
|
|
CodeMirror.signal(this, "startCompletion", this);
|
|
completion.update(true);
|
|
});
|
|
|
|
CodeMirror.defineExtension("closeHint", function() {
|
|
if (this.state.completionActive) this.state.completionActive.close()
|
|
})
|
|
|
|
function Completion(cm, options) {
|
|
this.cm = cm;
|
|
this.options = options;
|
|
this.widget = null;
|
|
this.debounce = 0;
|
|
this.tick = 0;
|
|
this.startPos = this.cm.getCursor("start");
|
|
this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length;
|
|
|
|
if (this.options.updateOnCursorActivity) {
|
|
var self = this;
|
|
cm.on("cursorActivity", this.activityFunc = function() { self.cursorActivity(); });
|
|
}
|
|
}
|
|
|
|
var requestAnimationFrame = window.requestAnimationFrame || function(fn) {
|
|
return setTimeout(fn, 1000/60);
|
|
};
|
|
var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout;
|
|
|
|
Completion.prototype = {
|
|
close: function() {
|
|
if (!this.active()) return;
|
|
this.cm.state.completionActive = null;
|
|
this.tick = null;
|
|
if (this.options.updateOnCursorActivity) {
|
|
this.cm.off("cursorActivity", this.activityFunc);
|
|
}
|
|
|
|
if (this.widget && this.data) CodeMirror.signal(this.data, "close");
|
|
if (this.widget) this.widget.close();
|
|
CodeMirror.signal(this.cm, "endCompletion", this.cm);
|
|
},
|
|
|
|
active: function() {
|
|
return this.cm.state.completionActive == this;
|
|
},
|
|
|
|
pick: function(data, i) {
|
|
var completion = data.list[i], self = this;
|
|
this.cm.operation(function() {
|
|
if (completion.hint)
|
|
completion.hint(self.cm, data, completion);
|
|
else
|
|
self.cm.replaceRange(getText(completion), completion.from || data.from,
|
|
completion.to || data.to, "complete");
|
|
CodeMirror.signal(data, "pick", completion);
|
|
self.cm.scrollIntoView();
|
|
});
|
|
if (this.options.closeOnPick) {
|
|
this.close();
|
|
}
|
|
},
|
|
|
|
cursorActivity: function() {
|
|
if (this.debounce) {
|
|
cancelAnimationFrame(this.debounce);
|
|
this.debounce = 0;
|
|
}
|
|
|
|
var identStart = this.startPos;
|
|
if(this.data) {
|
|
identStart = this.data.from;
|
|
}
|
|
|
|
var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
|
|
if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
|
|
pos.ch < identStart.ch || this.cm.somethingSelected() ||
|
|
(!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
|
|
this.close();
|
|
} else {
|
|
var self = this;
|
|
this.debounce = requestAnimationFrame(function() {self.update();});
|
|
if (this.widget) this.widget.disable();
|
|
}
|
|
},
|
|
|
|
update: function(first) {
|
|
if (this.tick == null) return
|
|
var self = this, myTick = ++this.tick
|
|
fetchHints(this.options.hint, this.cm, this.options, function(data) {
|
|
if (self.tick == myTick) self.finishUpdate(data, first)
|
|
})
|
|
},
|
|
|
|
finishUpdate: function(data, first) {
|
|
if (this.data) CodeMirror.signal(this.data, "update");
|
|
|
|
var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle);
|
|
if (this.widget) this.widget.close();
|
|
|
|
this.data = data;
|
|
|
|
if (data && data.list.length) {
|
|
if (picked && data.list.length == 1) {
|
|
this.pick(data, 0);
|
|
} else {
|
|
this.widget = new Widget(this, data);
|
|
CodeMirror.signal(data, "shown");
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
function parseOptions(cm, pos, options) {
|
|
var editor = cm.options.hintOptions;
|
|
var out = {};
|
|
for (var prop in defaultOptions) out[prop] = defaultOptions[prop];
|
|
if (editor) for (var prop in editor)
|
|
if (editor[prop] !== undefined) out[prop] = editor[prop];
|
|
if (options) for (var prop in options)
|
|
if (options[prop] !== undefined) out[prop] = options[prop];
|
|
if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos)
|
|
return out;
|
|
}
|
|
|
|
function getText(completion) {
|
|
if (typeof completion == "string") return completion;
|
|
else return completion.text;
|
|
}
|
|
|
|
function buildKeyMap(completion, handle) {
|
|
var baseMap = {
|
|
Up: function() {handle.moveFocus(-1);},
|
|
Down: function() {handle.moveFocus(1);},
|
|
PageUp: function() {handle.moveFocus(-handle.menuSize() + 1, true);},
|
|
PageDown: function() {handle.moveFocus(handle.menuSize() - 1, true);},
|
|
Home: function() {handle.setFocus(0);},
|
|
End: function() {handle.setFocus(handle.length - 1);},
|
|
Enter: handle.pick,
|
|
Tab: handle.pick,
|
|
Esc: handle.close
|
|
};
|
|
|
|
var mac = /Mac/.test(navigator.platform);
|
|
|
|
if (mac) {
|
|
baseMap["Ctrl-P"] = function() {handle.moveFocus(-1);};
|
|
baseMap["Ctrl-N"] = function() {handle.moveFocus(1);};
|
|
}
|
|
|
|
var custom = completion.options.customKeys;
|
|
var ourMap = custom ? {} : baseMap;
|
|
function addBinding(key, val) {
|
|
var bound;
|
|
if (typeof val != "string")
|
|
bound = function(cm) { return val(cm, handle); };
|
|
// This mechanism is deprecated
|
|
else if (baseMap.hasOwnProperty(val))
|
|
bound = baseMap[val];
|
|
else
|
|
bound = val;
|
|
ourMap[key] = bound;
|
|
}
|
|
if (custom)
|
|
for (var key in custom) if (custom.hasOwnProperty(key))
|
|
addBinding(key, custom[key]);
|
|
var extra = completion.options.extraKeys;
|
|
if (extra)
|
|
for (var key in extra) if (extra.hasOwnProperty(key))
|
|
addBinding(key, extra[key]);
|
|
return ourMap;
|
|
}
|
|
|
|
function getHintElement(hintsElement, el) {
|
|
while (el && el != hintsElement) {
|
|
if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el;
|
|
el = el.parentNode;
|
|
}
|
|
}
|
|
|
|
function Widget(completion, data) {
|
|
this.id = "cm-complete-" + Math.floor(Math.random(1e6))
|
|
this.completion = completion;
|
|
this.data = data;
|
|
this.picked = false;
|
|
var widget = this, cm = completion.cm;
|
|
var ownerDocument = cm.getInputField().ownerDocument;
|
|
var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow;
|
|
|
|
var hints = this.hints = ownerDocument.createElement("ul");
|
|
hints.setAttribute("role", "listbox")
|
|
hints.setAttribute("aria-expanded", "true")
|
|
hints.id = this.id
|
|
var theme = completion.cm.options.theme;
|
|
hints.className = "CodeMirror-hints " + theme;
|
|
this.selectedHint = data.selectedHint || 0;
|
|
|
|
var completions = data.list;
|
|
for (var i = 0; i < completions.length; ++i) {
|
|
var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i];
|
|
var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
|
|
if (cur.className != null) className = cur.className + " " + className;
|
|
elt.className = className;
|
|
if (i == this.selectedHint) elt.setAttribute("aria-selected", "true")
|
|
elt.id = this.id + "-" + i
|
|
elt.setAttribute("role", "option")
|
|
if (cur.render) cur.render(elt, data, cur);
|
|
else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur)));
|
|
elt.hintId = i;
|
|
}
|
|
|
|
var container = completion.options.container || ownerDocument.body;
|
|
var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null);
|
|
var left = pos.left, top = pos.bottom, below = true;
|
|
var offsetLeft = 0, offsetTop = 0;
|
|
if (container !== ownerDocument.body) {
|
|
// We offset the cursor position because left and top are relative to the offsetParent's top left corner.
|
|
var isContainerPositioned = ['absolute', 'relative', 'fixed'].indexOf(parentWindow.getComputedStyle(container).position) !== -1;
|
|
var offsetParent = isContainerPositioned ? container : container.offsetParent;
|
|
var offsetParentPosition = offsetParent.getBoundingClientRect();
|
|
var bodyPosition = ownerDocument.body.getBoundingClientRect();
|
|
offsetLeft = (offsetParentPosition.left - bodyPosition.left - offsetParent.scrollLeft);
|
|
offsetTop = (offsetParentPosition.top - bodyPosition.top - offsetParent.scrollTop);
|
|
}
|
|
hints.style.left = (left - offsetLeft) + "px";
|
|
hints.style.top = (top - offsetTop) + "px";
|
|
|
|
// If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
|
|
var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth);
|
|
var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight);
|
|
container.appendChild(hints);
|
|
cm.getInputField().setAttribute("aria-autocomplete", "list")
|
|
cm.getInputField().setAttribute("aria-owns", this.id)
|
|
cm.getInputField().setAttribute("aria-activedescendant", this.id + "-" + this.selectedHint)
|
|
|
|
var box = completion.options.moveOnOverlap ? hints.getBoundingClientRect() : new DOMRect();
|
|
var scrolls = completion.options.paddingForScrollbar ? hints.scrollHeight > hints.clientHeight + 1 : false;
|
|
|
|
// Compute in the timeout to avoid reflow on init
|
|
var startScroll;
|
|
setTimeout(function() { startScroll = cm.getScrollInfo(); });
|
|
|
|
var overlapY = box.bottom - winH;
|
|
if (overlapY > 0) {
|
|
var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top);
|
|
if (curTop - height > 0) { // Fits above cursor
|
|
hints.style.top = (top = pos.top - height - offsetTop) + "px";
|
|
below = false;
|
|
} else if (height > winH) {
|
|
hints.style.height = (winH - 5) + "px";
|
|
hints.style.top = (top = pos.bottom - box.top - offsetTop) + "px";
|
|
var cursor = cm.getCursor();
|
|
if (data.from.ch != cursor.ch) {
|
|
pos = cm.cursorCoords(cursor);
|
|
hints.style.left = (left = pos.left - offsetLeft) + "px";
|
|
box = hints.getBoundingClientRect();
|
|
}
|
|
}
|
|
}
|
|
var overlapX = box.right - winW;
|
|
if (scrolls) overlapX += cm.display.nativeBarWidth;
|
|
if (overlapX > 0) {
|
|
if (box.right - box.left > winW) {
|
|
hints.style.width = (winW - 5) + "px";
|
|
overlapX -= (box.right - box.left) - winW;
|
|
}
|
|
hints.style.left = (left = pos.left - overlapX - offsetLeft) + "px";
|
|
}
|
|
if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling)
|
|
node.style.paddingRight = cm.display.nativeBarWidth + "px"
|
|
|
|
cm.addKeyMap(this.keyMap = buildKeyMap(completion, {
|
|
moveFocus: function(n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); },
|
|
setFocus: function(n) { widget.changeActive(n); },
|
|
menuSize: function() { return widget.screenAmount(); },
|
|
length: completions.length,
|
|
close: function() { completion.close(); },
|
|
pick: function() { widget.pick(); },
|
|
data: data
|
|
}));
|
|
|
|
if (completion.options.closeOnUnfocus) {
|
|
var closingOnBlur;
|
|
cm.on("blur", this.onBlur = function() { closingOnBlur = setTimeout(function() { completion.close(); }, 100); });
|
|
cm.on("focus", this.onFocus = function() { clearTimeout(closingOnBlur); });
|
|
}
|
|
|
|
cm.on("scroll", this.onScroll = function() {
|
|
var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
|
|
if (!startScroll) startScroll = cm.getScrollInfo();
|
|
var newTop = top + startScroll.top - curScroll.top;
|
|
var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop);
|
|
if (!below) point += hints.offsetHeight;
|
|
if (point <= editor.top || point >= editor.bottom) return completion.close();
|
|
hints.style.top = newTop + "px";
|
|
hints.style.left = (left + startScroll.left - curScroll.left) + "px";
|
|
});
|
|
|
|
CodeMirror.on(hints, "dblclick", function(e) {
|
|
var t = getHintElement(hints, e.target || e.srcElement);
|
|
if (t && t.hintId != null) {widget.changeActive(t.hintId); widget.pick();}
|
|
});
|
|
|
|
CodeMirror.on(hints, "click", function(e) {
|
|
var t = getHintElement(hints, e.target || e.srcElement);
|
|
if (t && t.hintId != null) {
|
|
widget.changeActive(t.hintId);
|
|
if (completion.options.completeOnSingleClick) widget.pick();
|
|
}
|
|
});
|
|
|
|
CodeMirror.on(hints, "mousedown", function() {
|
|
setTimeout(function(){cm.focus();}, 20);
|
|
});
|
|
|
|
// The first hint doesn't need to be scrolled to on init
|
|
var selectedHintRange = this.getSelectedHintRange();
|
|
if (selectedHintRange.from !== 0 || selectedHintRange.to !== 0) {
|
|
this.scrollToActive();
|
|
}
|
|
|
|
CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]);
|
|
return true;
|
|
}
|
|
|
|
Widget.prototype = {
|
|
close: function() {
|
|
if (this.completion.widget != this) return;
|
|
this.completion.widget = null;
|
|
if (this.hints.parentNode) this.hints.parentNode.removeChild(this.hints);
|
|
this.completion.cm.removeKeyMap(this.keyMap);
|
|
var input = this.completion.cm.getInputField()
|
|
input.removeAttribute("aria-activedescendant")
|
|
input.removeAttribute("aria-owns")
|
|
|
|
var cm = this.completion.cm;
|
|
if (this.completion.options.closeOnUnfocus) {
|
|
cm.off("blur", this.onBlur);
|
|
cm.off("focus", this.onFocus);
|
|
}
|
|
cm.off("scroll", this.onScroll);
|
|
},
|
|
|
|
disable: function() {
|
|
this.completion.cm.removeKeyMap(this.keyMap);
|
|
var widget = this;
|
|
this.keyMap = {Enter: function() { widget.picked = true; }};
|
|
this.completion.cm.addKeyMap(this.keyMap);
|
|
},
|
|
|
|
pick: function() {
|
|
this.completion.pick(this.data, this.selectedHint);
|
|
},
|
|
|
|
changeActive: function(i, avoidWrap) {
|
|
if (i >= this.data.list.length)
|
|
i = avoidWrap ? this.data.list.length - 1 : 0;
|
|
else if (i < 0)
|
|
i = avoidWrap ? 0 : this.data.list.length - 1;
|
|
if (this.selectedHint == i) return;
|
|
var node = this.hints.childNodes[this.selectedHint];
|
|
if (node) {
|
|
node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, "");
|
|
node.removeAttribute("aria-selected")
|
|
}
|
|
node = this.hints.childNodes[this.selectedHint = i];
|
|
node.className += " " + ACTIVE_HINT_ELEMENT_CLASS;
|
|
node.setAttribute("aria-selected", "true")
|
|
this.completion.cm.getInputField().setAttribute("aria-activedescendant", node.id)
|
|
this.scrollToActive()
|
|
CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node);
|
|
},
|
|
|
|
scrollToActive: function() {
|
|
var selectedHintRange = this.getSelectedHintRange();
|
|
var node1 = this.hints.childNodes[selectedHintRange.from];
|
|
var node2 = this.hints.childNodes[selectedHintRange.to];
|
|
var firstNode = this.hints.firstChild;
|
|
if (node1.offsetTop < this.hints.scrollTop)
|
|
this.hints.scrollTop = node1.offsetTop - firstNode.offsetTop;
|
|
else if (node2.offsetTop + node2.offsetHeight > this.hints.scrollTop + this.hints.clientHeight)
|
|
this.hints.scrollTop = node2.offsetTop + node2.offsetHeight - this.hints.clientHeight + firstNode.offsetTop;
|
|
},
|
|
|
|
screenAmount: function() {
|
|
return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1;
|
|
},
|
|
|
|
getSelectedHintRange: function() {
|
|
var margin = this.completion.options.scrollMargin || 0;
|
|
return {
|
|
from: Math.max(0, this.selectedHint - margin),
|
|
to: Math.min(this.data.list.length - 1, this.selectedHint + margin),
|
|
};
|
|
}
|
|
};
|
|
|
|
function applicableHelpers(cm, helpers) {
|
|
if (!cm.somethingSelected()) return helpers
|
|
var result = []
|
|
for (var i = 0; i < helpers.length; i++)
|
|
if (helpers[i].supportsSelection) result.push(helpers[i])
|
|
return result
|
|
}
|
|
|
|
function fetchHints(hint, cm, options, callback) {
|
|
if (hint.async) {
|
|
hint(cm, callback, options)
|
|
} else {
|
|
var result = hint(cm, options)
|
|
if (result && result.then) result.then(callback)
|
|
else callback(result)
|
|
}
|
|
}
|
|
|
|
function resolveAutoHints(cm, pos) {
|
|
var helpers = cm.getHelpers(pos, "hint"), words
|
|
if (helpers.length) {
|
|
var resolved = function(cm, callback, options) {
|
|
var app = applicableHelpers(cm, helpers);
|
|
function run(i) {
|
|
if (i == app.length) return callback(null)
|
|
fetchHints(app[i], cm, options, function(result) {
|
|
if (result && result.list.length > 0) callback(result)
|
|
else run(i + 1)
|
|
})
|
|
}
|
|
run(0)
|
|
}
|
|
resolved.async = true
|
|
resolved.supportsSelection = true
|
|
return resolved
|
|
} else if (words = cm.getHelper(cm.getCursor(), "hintWords")) {
|
|
return function(cm) { return CodeMirror.hint.fromList(cm, {words: words}) }
|
|
} else if (CodeMirror.hint.anyword) {
|
|
return function(cm, options) { return CodeMirror.hint.anyword(cm, options) }
|
|
} else {
|
|
return function() {}
|
|
}
|
|
}
|
|
|
|
CodeMirror.registerHelper("hint", "auto", {
|
|
resolve: resolveAutoHints
|
|
});
|
|
|
|
CodeMirror.registerHelper("hint", "fromList", function(cm, options) {
|
|
var cur = cm.getCursor(), token = cm.getTokenAt(cur)
|
|
var term, from = CodeMirror.Pos(cur.line, token.start), to = cur
|
|
if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) {
|
|
term = token.string.substr(0, cur.ch - token.start)
|
|
} else {
|
|
term = ""
|
|
from = cur
|
|
}
|
|
var found = [];
|
|
for (var i = 0; i < options.words.length; i++) {
|
|
var word = options.words[i];
|
|
if (word.slice(0, term.length) == term)
|
|
found.push(word);
|
|
}
|
|
|
|
if (found.length) return {list: found, from: from, to: to};
|
|
});
|
|
|
|
CodeMirror.commands.autocomplete = CodeMirror.showHint;
|
|
|
|
var defaultOptions = {
|
|
hint: CodeMirror.hint.auto,
|
|
completeSingle: true,
|
|
alignWithWord: true,
|
|
closeCharacters: /[\s()\[\]{};:>,]/,
|
|
closeOnPick: true,
|
|
closeOnUnfocus: true,
|
|
updateOnCursorActivity: true,
|
|
completeOnSingleClick: true,
|
|
container: null,
|
|
customKeys: null,
|
|
extraKeys: null,
|
|
paddingForScrollbar: true,
|
|
moveOnOverlap: true,
|
|
};
|
|
|
|
CodeMirror.defineOption("hintOptions", null);
|
|
});
|