##// END OF EJS Templates
vcs: do an early detection of vcs-type request....
vcs: do an early detection of vcs-type request. We we to know to detect vcs type request as early as possible. IF we know we're handling an VCS request, we can skip some of the pylons stack initialization. - This fixes issues with leaking sessions and other object from pylons into a purely VCS type request.

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codemirror_hint.js
440 lines | 15.9 KiB | application/javascript | JavascriptLexer
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://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";
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);
});
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;
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;
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];
if (completion.hint) completion.hint(this.cm, data, completion);
else this.cm.replaceRange(getText(completion), completion.from || data.from,
completion.to || data.to, "complete");
CodeMirror.signal(data, "pick", completion);
this.close();
},
cursorActivity: function() {
if (this.debounce) {
cancelAnimationFrame(this.debounce);
this.debounce = 0;
}
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 < this.startPos.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;
if (!this.options.hint.async) {
this.finishUpdate(this.options.hint(this.cm, this.options), first);
} else {
var myTick = ++this.tick, self = this;
this.options.hint(this.cm, function(data) {
if (self.tick == myTick) self.finishUpdate(data, first);
}, this.options);
}
},
finishUpdate: function(data, first) {
if (this.data) CodeMirror.signal(this.data, "update");
if (data && this.data && CodeMirror.cmpPos(data.from, this.data.from)) data = null;
this.data = data;
var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle);
if (this.widget) this.widget.close();
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 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.completion = completion;
this.data = data;
this.picked = false;
var widget = this, cm = completion.cm;
var hints = this.hints = document.createElement("ul");
hints.className = "CodeMirror-hints";
this.selectedHint = data.selectedHint || 0;
var completions = data.list;
for (var i = 0; i < completions.length; ++i) {
var elt = hints.appendChild(document.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 (cur.render) cur.render(elt, data, cur);
else elt.appendChild(document.createTextNode(cur.displayText || getText(cur)));
elt.hintId = i;
}
var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null);
var left = pos.left, top = pos.bottom, below = true;
hints.style.left = left + "px";
hints.style.top = top + "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 = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
(completion.options.container || document.body).appendChild(hints);
var box = hints.getBoundingClientRect(), 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) + "px";
below = false;
} else if (height > winH) {
hints.style.height = (winH - 5) + "px";
hints.style.top = (top = pos.bottom - box.top) + "px";
var cursor = cm.getCursor();
if (data.from.ch != cursor.ch) {
pos = cm.cursorCoords(cursor);
hints.style.left = (left = pos.left) + "px";
box = hints.getBoundingClientRect();
}
}
}
var overlapX = box.right - winW;
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) + "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); });
}
var startScroll = cm.getScrollInfo();
cm.on("scroll", this.onScroll = function() {
var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
var newTop = top + startScroll.top - curScroll.top;
var point = newTop - (window.pageYOffset || (document.documentElement || document.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);
});
CodeMirror.signal(data, "select", completions[0], hints.firstChild);
return true;
}
Widget.prototype = {
close: function() {
if (this.completion.widget != this) return;
this.completion.widget = null;
this.hints.parentNode.removeChild(this.hints);
this.completion.cm.removeKeyMap(this.keyMap);
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];
node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, "");
node = this.hints.childNodes[this.selectedHint = i];
node.className += " " + ACTIVE_HINT_ELEMENT_CLASS;
if (node.offsetTop < this.hints.scrollTop)
this.hints.scrollTop = node.offsetTop - 3;
else if (node.offsetTop + node.offsetHeight > this.hints.scrollTop + this.hints.clientHeight)
this.hints.scrollTop = node.offsetTop + node.offsetHeight - this.hints.clientHeight + 3;
CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node);
},
screenAmount: function() {
return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1;
}
};
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 resolveAutoHints(cm, pos) {
var helpers = cm.getHelpers(pos, "hint"), words
if (helpers.length) {
var async = false, resolved
for (var i = 0; i < helpers.length; i++) if (helpers[i].async) async = true
if (async) {
resolved = function(cm, callback, options) {
var app = applicableHelpers(cm, helpers)
function run(i, result) {
if (i == app.length) return callback(null)
var helper = app[i]
if (helper.async) {
helper(cm, function(result) {
if (result) callback(result)
else run(i + 1)
}, options)
} else {
var result = helper(cm, options)
if (result) callback(result)
else run(i + 1)
}
}
run(0)
}
resolved.async = true
} else {
resolved = function(cm, options) {
var app = applicableHelpers(cm, helpers)
for (var i = 0; i < app.length; i++) {
var cur = app[i](cm, options)
if (cur && cur.list.length) return cur
}
}
}
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 to = CodeMirror.Pos(cur.line, token.end);
if (token.string && /\w/.test(token.string[token.string.length - 1])) {
var term = token.string, from = CodeMirror.Pos(cur.line, token.start);
} else {
var term = "", from = to;
}
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()\[\]{};:>,]/,
closeOnUnfocus: true,
completeOnSingleClick: true,
container: null,
customKeys: null,
extraKeys: null
};
CodeMirror.defineOption("hintOptions", null);
});