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main.js
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main.js
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//////////////////////////////////////////////////////////////////////////
// //
// This is a generated file. You can view the original //
// source in your browser if your browser supports source maps. //
// //
// If you are using Chrome, open the Developer Tools and click the gear //
// icon in its lower right corner. In the General Settings panel, turn //
// on 'Enable source maps'. //
// //
// If you are using Firefox 23, go to `about:config` and set the //
// `devtools.debugger.source-maps-enabled` preference to true. //
// (The preference should be on by default in Firefox 24; versions //
// older than 23 do not support source maps.) //
// //
//////////////////////////////////////////////////////////////////////////
define(function (require) {
var Package = {};
var Meteor = require('./meteor');
var jQuery = require('jquery');
var Tracker = require('./tracker');
var Deps = Tracker._Deps;
var _ = require('underscore');
var HTML = require('./htmljs');
var ObserveSequence = require('./observe-sequence');
var ReactiveVar = require('./reactive-var');
/* Package-scope variables */
var Blaze, UI, Handlebars, AttributeHandler, makeAttributeHandler, ElementAttributesUpdater;
(function () {
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// packages/blaze/preamble.js //
// //
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
/** // 1
* @namespace Blaze // 2
* @summary The namespace for all Blaze-related methods and classes. // 3
*/ // 4
Blaze = {}; // 5
// 6
// Utility to HTML-escape a string. Included for legacy reasons. // 7
Blaze._escape = (function() { // 8
var escape_map = { // 9
"<": "<", // 10
">": ">", // 11
'"': """, // 12
"'": "'", // 13
"`": "`", /* IE allows backtick-delimited attributes?? */ // 14
"&": "&" // 15
}; // 16
var escape_one = function(c) { // 17
return escape_map[c]; // 18
}; // 19
// 20
return function (x) { // 21
return x.replace(/[&<>"'`]/g, escape_one); // 22
}; // 23
})(); // 24
// 25
Blaze._warn = function (msg) { // 26
msg = 'Warning: ' + msg; // 27
// 28
if ((typeof Log !== 'undefined') && Log && Log.warn) // 29
Log.warn(msg); // use Meteor's "logging" package // 30
else if ((typeof console !== 'undefined') && console.log) // 31
console.log(msg); // 32
}; // 33
// 34
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}).call(this);
(function () {
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// packages/blaze/dombackend.js //
// //
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
var DOMBackend = {}; // 1
Blaze._DOMBackend = DOMBackend; // 2
// 3
var $jq = (typeof jQuery !== 'undefined' ? jQuery : // 4
(typeof Package !== 'undefined' ? // 5
Package.jquery && jQuery : null)); // 6
if (! $jq) // 7
throw new Error("jQuery not found"); // 8
// 9
DOMBackend._$jq = $jq; // 10
// 11
DOMBackend.parseHTML = function (html) { // 12
// Return an array of nodes. // 13
// // 14
// jQuery does fancy stuff like creating an appropriate // 15
// container element and setting innerHTML on it, as well // 16
// as working around various IE quirks. // 17
return $jq.parseHTML(html) || []; // 18
}; // 19
// 20
DOMBackend.Events = { // 21
// `selector` is non-null. `type` is one type (but // 22
// may be in backend-specific form, e.g. have namespaces). // 23
// Order fired must be order bound. // 24
delegateEvents: function (elem, type, selector, handler) { // 25
$jq(elem).on(type, selector, handler); // 26
}, // 27
// 28
undelegateEvents: function (elem, type, handler) { // 29
$jq(elem).off(type, '**', handler); // 30
}, // 31
// 32
bindEventCapturer: function (elem, type, selector, handler) { // 33
var $elem = $jq(elem); // 34
// 35
var wrapper = function (event) { // 36
event = $jq.event.fix(event); // 37
event.currentTarget = event.target; // 38
// 39
// Note: It might improve jQuery interop if we called into jQuery // 40
// here somehow. Since we don't use jQuery to dispatch the event, // 41
// we don't fire any of jQuery's event hooks or anything. However, // 42
// since jQuery can't bind capturing handlers, it's not clear // 43
// where we would hook in. Internal jQuery functions like `dispatch` // 44
// are too high-level. // 45
var $target = $jq(event.currentTarget); // 46
if ($target.is($elem.find(selector))) // 47
handler.call(elem, event); // 48
}; // 49
// 50
handler._meteorui_wrapper = wrapper; // 51
// 52
type = DOMBackend.Events.parseEventType(type); // 53
// add *capturing* event listener // 54
elem.addEventListener(type, wrapper, true); // 55
}, // 56
// 57
unbindEventCapturer: function (elem, type, handler) { // 58
type = DOMBackend.Events.parseEventType(type); // 59
elem.removeEventListener(type, handler._meteorui_wrapper, true); // 60
}, // 61
// 62
parseEventType: function (type) { // 63
// strip off namespaces // 64
var dotLoc = type.indexOf('.'); // 65
if (dotLoc >= 0) // 66
return type.slice(0, dotLoc); // 67
return type; // 68
} // 69
}; // 70
// 71
// 72
///// Removal detection and interoperability. // 73
// 74
// For an explanation of this technique, see: // 75
// http://bugs.jquery.com/ticket/12213#comment:23 . // 76
// // 77
// In short, an element is considered "removed" when jQuery // 78
// cleans up its *private* userdata on the element, // 79
// which we can detect using a custom event with a teardown // 80
// hook. // 81
// 82
var NOOP = function () {}; // 83
// 84
// Circular doubly-linked list // 85
var TeardownCallback = function (func) { // 86
this.next = this; // 87
this.prev = this; // 88
this.func = func; // 89
}; // 90
// 91
// Insert newElt before oldElt in the circular list // 92
TeardownCallback.prototype.linkBefore = function(oldElt) { // 93
this.prev = oldElt.prev; // 94
this.next = oldElt; // 95
oldElt.prev.next = this; // 96
oldElt.prev = this; // 97
}; // 98
// 99
TeardownCallback.prototype.unlink = function () { // 100
this.prev.next = this.next; // 101
this.next.prev = this.prev; // 102
}; // 103
// 104
TeardownCallback.prototype.go = function () { // 105
var func = this.func; // 106
func && func(); // 107
}; // 108
// 109
TeardownCallback.prototype.stop = TeardownCallback.prototype.unlink; // 110
// 111
DOMBackend.Teardown = { // 112
_JQUERY_EVENT_NAME: 'blaze_teardown_watcher', // 113
_CB_PROP: '$blaze_teardown_callbacks', // 114
// Registers a callback function to be called when the given element or // 115
// one of its ancestors is removed from the DOM via the backend library. // 116
// The callback function is called at most once, and it receives the element // 117
// in question as an argument. // 118
onElementTeardown: function (elem, func) { // 119
var elt = new TeardownCallback(func); // 120
// 121
var propName = DOMBackend.Teardown._CB_PROP; // 122
if (! elem[propName]) { // 123
// create an empty node that is never unlinked // 124
elem[propName] = new TeardownCallback; // 125
// 126
// Set up the event, only the first time. // 127
$jq(elem).on(DOMBackend.Teardown._JQUERY_EVENT_NAME, NOOP); // 128
} // 129
// 130
elt.linkBefore(elem[propName]); // 131
// 132
return elt; // so caller can call stop() // 133
}, // 134
// Recursively call all teardown hooks, in the backend and registered // 135
// through DOMBackend.onElementTeardown. // 136
tearDownElement: function (elem) { // 137
var elems = []; // 138
// Array.prototype.slice.call doesn't work when given a NodeList in // 139
// IE8 ("JScript object expected"). // 140
var nodeList = elem.getElementsByTagName('*'); // 141
for (var i = 0; i < nodeList.length; i++) { // 142
elems.push(nodeList[i]); // 143
} // 144
elems.push(elem); // 145
$jq.cleanData(elems); // 146
} // 147
}; // 148
// 149
$jq.event.special[DOMBackend.Teardown._JQUERY_EVENT_NAME] = { // 150
setup: function () { // 151
// This "setup" callback is important even though it is empty! // 152
// Without it, jQuery will call addEventListener, which is a // 153
// performance hit, especially with Chrome's async stack trace // 154
// feature enabled. // 155
}, // 156
teardown: function() { // 157
var elem = this; // 158
var callbacks = elem[DOMBackend.Teardown._CB_PROP]; // 159
if (callbacks) { // 160
var elt = callbacks.next; // 161
while (elt !== callbacks) { // 162
elt.go(); // 163
elt = elt.next; // 164
} // 165
callbacks.go(); // 166
// 167
elem[DOMBackend.Teardown._CB_PROP] = null; // 168
} // 169
} // 170
}; // 171
// 172
// 173
// Must use jQuery semantics for `context`, not // 174
// querySelectorAll's. In other words, all the parts // 175
// of `selector` must be found under `context`. // 176
DOMBackend.findBySelector = function (selector, context) { // 177
return $jq(selector, context); // 178
}; // 179
// 180
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}).call(this);
(function () {
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// packages/blaze/domrange.js //
// //
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// 1
// A constant empty array (frozen if the JS engine supports it). // 2
var _emptyArray = Object.freeze ? Object.freeze([]) : []; // 3
// 4
// `[new] Blaze._DOMRange([nodeAndRangeArray])` // 5
// // 6
// A DOMRange consists of an array of consecutive nodes and DOMRanges, // 7
// which may be replaced at any time with a new array. If the DOMRange // 8
// has been attached to the DOM at some location, then updating // 9
// the array will cause the DOM to be updated at that location. // 10
Blaze._DOMRange = function (nodeAndRangeArray) { // 11
if (! (this instanceof DOMRange)) // 12
// called without `new` // 13
return new DOMRange(nodeAndRangeArray); // 14
// 15
var members = (nodeAndRangeArray || _emptyArray); // 16
if (! (members && (typeof members.length) === 'number')) // 17
throw new Error("Expected array"); // 18
// 19
for (var i = 0; i < members.length; i++) // 20
this._memberIn(members[i]); // 21
// 22
this.members = members; // 23
this.emptyRangePlaceholder = null; // 24
this.attached = false; // 25
this.parentElement = null; // 26
this.parentRange = null; // 27
this.attachedCallbacks = _emptyArray; // 28
}; // 29
var DOMRange = Blaze._DOMRange; // 30
// 31
// In IE 8, don't use empty text nodes as placeholders // 32
// in empty DOMRanges, use comment nodes instead. Using // 33
// empty text nodes in modern browsers is great because // 34
// it doesn't clutter the web inspector. In IE 8, however, // 35
// it seems to lead in some roundabout way to the OAuth // 36
// pop-up crashing the browser completely. In the past, // 37
// we didn't use empty text nodes on IE 8 because they // 38
// don't accept JS properties, so just use the same logic // 39
// even though we don't need to set properties on the // 40
// placeholder anymore. // 41
DOMRange._USE_COMMENT_PLACEHOLDERS = (function () { // 42
var result = false; // 43
var textNode = document.createTextNode(""); // 44
try { // 45
textNode.someProp = true; // 46
} catch (e) { // 47
// IE 8 // 48
result = true; // 49
} // 50
return result; // 51
})(); // 52
// 53
// static methods // 54
DOMRange._insert = function (rangeOrNode, parentElement, nextNode, _isMove) { // 55
var m = rangeOrNode; // 56
if (m instanceof DOMRange) { // 57
m.attach(parentElement, nextNode, _isMove); // 58
} else { // 59
if (_isMove) // 60
DOMRange._moveNodeWithHooks(m, parentElement, nextNode); // 61
else // 62
DOMRange._insertNodeWithHooks(m, parentElement, nextNode); // 63
} // 64
}; // 65
// 66
DOMRange._remove = function (rangeOrNode) { // 67
var m = rangeOrNode; // 68
if (m instanceof DOMRange) { // 69
m.detach(); // 70
} else { // 71
DOMRange._removeNodeWithHooks(m); // 72
} // 73
}; // 74
// 75
DOMRange._removeNodeWithHooks = function (n) { // 76
if (! n.parentNode) // 77
return; // 78
if (n.nodeType === 1 && // 79
n.parentNode._uihooks && n.parentNode._uihooks.removeElement) { // 80
n.parentNode._uihooks.removeElement(n); // 81
} else { // 82
n.parentNode.removeChild(n); // 83
} // 84
}; // 85
// 86
DOMRange._insertNodeWithHooks = function (n, parent, next) { // 87
// `|| null` because IE throws an error if 'next' is undefined // 88
next = next || null; // 89
if (n.nodeType === 1 && // 90
parent._uihooks && parent._uihooks.insertElement) { // 91
parent._uihooks.insertElement(n, next); // 92
} else { // 93
parent.insertBefore(n, next); // 94
} // 95
}; // 96
// 97
DOMRange._moveNodeWithHooks = function (n, parent, next) { // 98
if (n.parentNode !== parent) // 99
return; // 100
// `|| null` because IE throws an error if 'next' is undefined // 101
next = next || null; // 102
if (n.nodeType === 1 && // 103
parent._uihooks && parent._uihooks.moveElement) { // 104
parent._uihooks.moveElement(n, next); // 105
} else { // 106
parent.insertBefore(n, next); // 107
} // 108
}; // 109
// 110
DOMRange.forElement = function (elem) { // 111
if (elem.nodeType !== 1) // 112
throw new Error("Expected element, found: " + elem); // 113
var range = null; // 114
while (elem && ! range) { // 115
range = (elem.$blaze_range || null); // 116
if (! range) // 117
elem = elem.parentNode; // 118
} // 119
return range; // 120
}; // 121
// 122
DOMRange.prototype.attach = function (parentElement, nextNode, _isMove, _isReplace) { // 123
// This method is called to insert the DOMRange into the DOM for // 124
// the first time, but it's also used internally when // 125
// updating the DOM. // 126
// // 127
// If _isMove is true, move this attached range to a different // 128
// location under the same parentElement. // 129
if (_isMove || _isReplace) { // 130
if (! (this.parentElement === parentElement && // 131
this.attached)) // 132
throw new Error("Can only move or replace an attached DOMRange, and only under the same parent element"); // 133
} // 134
// 135
var members = this.members; // 136
if (members.length) { // 137
this.emptyRangePlaceholder = null; // 138
for (var i = 0; i < members.length; i++) { // 139
DOMRange._insert(members[i], parentElement, nextNode, _isMove); // 140
} // 141
} else { // 142
var placeholder = ( // 143
DOMRange._USE_COMMENT_PLACEHOLDERS ? // 144
document.createComment("") : // 145
document.createTextNode("")); // 146
this.emptyRangePlaceholder = placeholder; // 147
parentElement.insertBefore(placeholder, nextNode || null); // 148
} // 149
this.attached = true; // 150
this.parentElement = parentElement; // 151
// 152
if (! (_isMove || _isReplace)) { // 153
for(var i = 0; i < this.attachedCallbacks.length; i++) { // 154
var obj = this.attachedCallbacks[i]; // 155
obj.attached && obj.attached(this, parentElement); // 156
} // 157
} // 158
}; // 159
// 160
DOMRange.prototype.setMembers = function (newNodeAndRangeArray) { // 161
var newMembers = newNodeAndRangeArray; // 162
if (! (newMembers && (typeof newMembers.length) === 'number')) // 163
throw new Error("Expected array"); // 164
// 165
var oldMembers = this.members; // 166
// 167
for (var i = 0; i < oldMembers.length; i++) // 168
this._memberOut(oldMembers[i]); // 169
for (var i = 0; i < newMembers.length; i++) // 170
this._memberIn(newMembers[i]); // 171
// 172
if (! this.attached) { // 173
this.members = newMembers; // 174
} else { // 175
// don't do anything if we're going from empty to empty // 176
if (newMembers.length || oldMembers.length) { // 177
// detach the old members and insert the new members // 178
var nextNode = this.lastNode().nextSibling; // 179
var parentElement = this.parentElement; // 180
// Use detach/attach, but don't fire attached/detached hooks // 181
this.detach(true /*_isReplace*/); // 182
this.members = newMembers; // 183
this.attach(parentElement, nextNode, false, true /*_isReplace*/); // 184
} // 185
} // 186
}; // 187
// 188
DOMRange.prototype.firstNode = function () { // 189
if (! this.attached) // 190
throw new Error("Must be attached"); // 191
// 192
if (! this.members.length) // 193
return this.emptyRangePlaceholder; // 194
// 195
var m = this.members[0]; // 196
return (m instanceof DOMRange) ? m.firstNode() : m; // 197
}; // 198
// 199
DOMRange.prototype.lastNode = function () { // 200
if (! this.attached) // 201
throw new Error("Must be attached"); // 202
// 203
if (! this.members.length) // 204
return this.emptyRangePlaceholder; // 205
// 206
var m = this.members[this.members.length - 1]; // 207
return (m instanceof DOMRange) ? m.lastNode() : m; // 208
}; // 209
// 210
DOMRange.prototype.detach = function (_isReplace) { // 211
if (! this.attached) // 212
throw new Error("Must be attached"); // 213
// 214
var oldParentElement = this.parentElement; // 215
var members = this.members; // 216
if (members.length) { // 217
for (var i = 0; i < members.length; i++) { // 218
DOMRange._remove(members[i]); // 219
} // 220
} else { // 221
var placeholder = this.emptyRangePlaceholder; // 222
this.parentElement.removeChild(placeholder); // 223
this.emptyRangePlaceholder = null; // 224
} // 225
// 226
if (! _isReplace) { // 227
this.attached = false; // 228
this.parentElement = null; // 229
// 230
for(var i = 0; i < this.attachedCallbacks.length; i++) { // 231
var obj = this.attachedCallbacks[i]; // 232
obj.detached && obj.detached(this, oldParentElement); // 233
} // 234
} // 235
}; // 236
// 237
DOMRange.prototype.addMember = function (newMember, atIndex, _isMove) { // 238
var members = this.members; // 239
if (! (atIndex >= 0 && atIndex <= members.length)) // 240
throw new Error("Bad index in range.addMember: " + atIndex); // 241
// 242
if (! _isMove) // 243
this._memberIn(newMember); // 244
// 245
if (! this.attached) { // 246
// currently detached; just updated members // 247
members.splice(atIndex, 0, newMember); // 248
} else if (members.length === 0) { // 249
// empty; use the empty-to-nonempty handling of setMembers // 250
this.setMembers([newMember]); // 251
} else { // 252
var nextNode; // 253
if (atIndex === members.length) { // 254
// insert at end // 255
nextNode = this.lastNode().nextSibling; // 256
} else { // 257
var m = members[atIndex]; // 258
nextNode = (m instanceof DOMRange) ? m.firstNode() : m; // 259
} // 260
members.splice(atIndex, 0, newMember); // 261
DOMRange._insert(newMember, this.parentElement, nextNode, _isMove); // 262
} // 263
}; // 264
// 265
DOMRange.prototype.removeMember = function (atIndex, _isMove) { // 266
var members = this.members; // 267
if (! (atIndex >= 0 && atIndex < members.length)) // 268
throw new Error("Bad index in range.removeMember: " + atIndex); // 269
// 270
if (_isMove) { // 271
members.splice(atIndex, 1); // 272
} else { // 273
var oldMember = members[atIndex]; // 274
this._memberOut(oldMember); // 275
// 276
if (members.length === 1) { // 277
// becoming empty; use the logic in setMembers // 278
this.setMembers(_emptyArray); // 279
} else { // 280
members.splice(atIndex, 1); // 281
if (this.attached) // 282
DOMRange._remove(oldMember); // 283
} // 284
} // 285
}; // 286
// 287
DOMRange.prototype.moveMember = function (oldIndex, newIndex) { // 288
var member = this.members[oldIndex]; // 289
this.removeMember(oldIndex, true /*_isMove*/); // 290
this.addMember(member, newIndex, true /*_isMove*/); // 291
}; // 292
// 293
DOMRange.prototype.getMember = function (atIndex) { // 294
var members = this.members; // 295
if (! (atIndex >= 0 && atIndex < members.length)) // 296
throw new Error("Bad index in range.getMember: " + atIndex); // 297
return this.members[atIndex]; // 298
}; // 299
// 300
DOMRange.prototype._memberIn = function (m) { // 301
if (m instanceof DOMRange) // 302
m.parentRange = this; // 303
else if (m.nodeType === 1) // DOM Element // 304
m.$blaze_range = this; // 305
}; // 306
// 307
DOMRange._destroy = function (m, _skipNodes) { // 308
if (m instanceof DOMRange) { // 309
if (m.view) // 310
Blaze._destroyView(m.view, _skipNodes); // 311
} else if ((! _skipNodes) && m.nodeType === 1) { // 312
// DOM Element // 313
if (m.$blaze_range) { // 314
Blaze._destroyNode(m); // 315
m.$blaze_range = null; // 316
} // 317
} // 318
}; // 319
// 320
DOMRange.prototype._memberOut = DOMRange._destroy; // 321
// 322
// Tear down, but don't remove, the members. Used when chunks // 323
// of DOM are being torn down or replaced. // 324
DOMRange.prototype.destroyMembers = function (_skipNodes) { // 325
var members = this.members; // 326
for (var i = 0; i < members.length; i++) // 327
this._memberOut(members[i], _skipNodes); // 328
}; // 329
// 330
DOMRange.prototype.destroy = function (_skipNodes) { // 331
DOMRange._destroy(this, _skipNodes); // 332
}; // 333
// 334
DOMRange.prototype.containsElement = function (elem) { // 335
if (! this.attached) // 336
throw new Error("Must be attached"); // 337
// 338
// An element is contained in this DOMRange if it's possible to // 339
// reach it by walking parent pointers, first through the DOM and // 340
// then parentRange pointers. In other words, the element or some // 341
// ancestor of it is at our level of the DOM (a child of our // 342
// parentElement), and this element is one of our members or // 343
// is a member of a descendant Range. // 344
// 345
// First check that elem is a descendant of this.parentElement, // 346
// according to the DOM. // 347
if (! Blaze._elementContains(this.parentElement, elem)) // 348
return false; // 349
// 350
// If elem is not an immediate child of this.parentElement, // 351
// walk up to its ancestor that is. // 352
while (elem.parentNode !== this.parentElement) // 353
elem = elem.parentNode; // 354
// 355
var range = elem.$blaze_range; // 356
while (range && range !== this) // 357
range = range.parentRange; // 358
// 359
return range === this; // 360
}; // 361
// 362
DOMRange.prototype.containsRange = function (range) { // 363
if (! this.attached) // 364
throw new Error("Must be attached"); // 365
// 366
if (! range.attached) // 367
return false; // 368
// 369
// A DOMRange is contained in this DOMRange if it's possible // 370
// to reach this range by following parent pointers. If the // 371
// DOMRange has the same parentElement, then it should be // 372
// a member, or a member of a member etc. Otherwise, we must // 373
// contain its parentElement. // 374
// 375
if (range.parentElement !== this.parentElement) // 376
return this.containsElement(range.parentElement); // 377
// 378
if (range === this) // 379
return false; // don't contain self // 380
// 381
while (range && range !== this) // 382
range = range.parentRange; // 383
// 384
return range === this; // 385
}; // 386
// 387
DOMRange.prototype.onAttached = function (attached) { // 388
this.onAttachedDetached({ attached: attached }); // 389
}; // 390
// 391
// callbacks are `attached(range, element)` and // 392
// `detached(range, element)`, and they may // 393
// access the `callbacks` object in `this`. // 394
// The arguments to `detached` are the same // 395
// range and element that were passed to `attached`. // 396
DOMRange.prototype.onAttachedDetached = function (callbacks) { // 397
if (this.attachedCallbacks === _emptyArray) // 398
this.attachedCallbacks = []; // 399
this.attachedCallbacks.push(callbacks); // 400
}; // 401
// 402
DOMRange.prototype.$ = function (selector) { // 403
var self = this; // 404
// 405
var parentNode = this.parentElement; // 406
if (! parentNode) // 407
throw new Error("Can't select in removed DomRange"); // 408
// 409
// Strategy: Find all selector matches under parentNode, // 410
// then filter out the ones that aren't in this DomRange // 411
// using `DOMRange#containsElement`. This is // 412
// asymptotically slow in the presence of O(N) sibling // 413
// content that is under parentNode but not in our range, // 414
// so if performance is an issue, the selector should be // 415
// run on a child element. // 416
// 417
// Since jQuery can't run selectors on a DocumentFragment, // 418
// we don't expect findBySelector to work. // 419
if (parentNode.nodeType === 11 /* DocumentFragment */) // 420
throw new Error("Can't use $ on an offscreen range"); // 421
// 422
var results = Blaze._DOMBackend.findBySelector(selector, parentNode); // 423
// 424
// We don't assume `results` has jQuery API; a plain array // 425
// should do just as well. However, if we do have a jQuery // 426
// array, we want to end up with one also, so we use // 427
// `.filter`. // 428
// 429
// Function that selects only elements that are actually // 430
// in this DomRange, rather than simply descending from // 431
// `parentNode`. // 432
var filterFunc = function (elem) { // 433
// handle jQuery's arguments to filter, where the node // 434
// is in `this` and the index is the first argument. // 435
if (typeof elem === 'number') // 436
elem = this; // 437
// 438
return self.containsElement(elem); // 439
}; // 440
// 441
if (! results.filter) { // 442
// not a jQuery array, and not a browser with // 443
// Array.prototype.filter (e.g. IE <9) // 444
var newResults = []; // 445
for (var i = 0; i < results.length; i++) { // 446
var x = results[i]; // 447
if (filterFunc(x)) // 448
newResults.push(x); // 449
} // 450
results = newResults; // 451
} else { // 452
// `results.filter` is either jQuery's or ECMAScript's `filter` // 453
results = results.filter(filterFunc); // 454
} // 455
// 456
return results; // 457
}; // 458
// 459
// Returns true if element a contains node b and is not node b. // 460
// // 461
// The restriction that `a` be an element (not a document fragment, // 462
// say) is based on what's easy to implement cross-browser. // 463
Blaze._elementContains = function (a, b) { // 464
if (a.nodeType !== 1) // ELEMENT // 465
return false; // 466
if (a === b) // 467
return false; // 468
// 469
if (a.compareDocumentPosition) { // 470
return a.compareDocumentPosition(b) & 0x10; // 471
} else { // 472
// Should be only old IE and maybe other old browsers here. // 473
// Modern Safari has both functions but seems to get contains() wrong. // 474
// IE can't handle b being a text node. We work around this // 475
// by doing a direct parent test now. // 476
b = b.parentNode; // 477
if (! (b && b.nodeType === 1)) // ELEMENT // 478
return false; // 479
if (a === b) // 480
return true; // 481
// 482
return a.contains(b); // 483
} // 484
}; // 485
// 486
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}).call(this);
(function () {
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// packages/blaze/events.js //
// //
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
var EventSupport = Blaze._EventSupport = {}; // 1
// 2
var DOMBackend = Blaze._DOMBackend; // 3
// 4
// List of events to always delegate, never capture. // 5
// Since jQuery fakes bubbling for certain events in // 6
// certain browsers (like `submit`), we don't want to // 7
// get in its way. // 8
// // 9
// We could list all known bubbling // 10
// events here to avoid creating speculative capturers // 11
// for them, but it would only be an optimization. // 12
var eventsToDelegate = EventSupport.eventsToDelegate = { // 13
blur: 1, change: 1, click: 1, focus: 1, focusin: 1, // 14
focusout: 1, reset: 1, submit: 1 // 15
}; // 16
// 17
var EVENT_MODE = EventSupport.EVENT_MODE = { // 18
TBD: 0, // 19
BUBBLING: 1, // 20
CAPTURING: 2 // 21
}; // 22
// 23
var NEXT_HANDLERREC_ID = 1; // 24
// 25
var HandlerRec = function (elem, type, selector, handler, recipient) { // 26
this.elem = elem; // 27
this.type = type; // 28
this.selector = selector; // 29
this.handler = handler; // 30
this.recipient = recipient; // 31
this.id = (NEXT_HANDLERREC_ID++); // 32
// 33
this.mode = EVENT_MODE.TBD; // 34
// 35
// It's important that delegatedHandler be a different // 36
// instance for each handlerRecord, because its identity // 37
// is used to remove it. // 38
// // 39
// It's also important that the closure have access to // 40
// `this` when it is not called with it set. // 41
this.delegatedHandler = (function (h) { // 42
return function (evt) { // 43
if ((! h.selector) && evt.currentTarget !== evt.target) // 44
// no selector means only fire on target // 45
return; // 46
return h.handler.apply(h.recipient, arguments); // 47
}; // 48
})(this); // 49
// 50
// WHY CAPTURE AND DELEGATE: jQuery can't delegate // 51
// non-bubbling events, because // 52
// event capture doesn't work in IE 8. However, there // 53
// are all sorts of new-fangled non-bubbling events // 54
// like "play" and "touchenter". We delegate these // 55
// events using capture in all browsers except IE 8. // 56
// IE 8 doesn't support these events anyway. // 57
// 58
var tryCapturing = elem.addEventListener && // 59
(! _.has(eventsToDelegate, // 60
DOMBackend.Events.parseEventType(type))); // 61
// 62
if (tryCapturing) { // 63
this.capturingHandler = (function (h) { // 64
return function (evt) { // 65
if (h.mode === EVENT_MODE.TBD) { // 66
// must be first time we're called. // 67
if (evt.bubbles) { // 68
// this type of event bubbles, so don't // 69
// get called again. // 70
h.mode = EVENT_MODE.BUBBLING; // 71
DOMBackend.Events.unbindEventCapturer( // 72
h.elem, h.type, h.capturingHandler); // 73
return; // 74
} else { // 75
// this type of event doesn't bubble, // 76
// so unbind the delegation, preventing // 77
// it from ever firing. // 78
h.mode = EVENT_MODE.CAPTURING; // 79
DOMBackend.Events.undelegateEvents( // 80
h.elem, h.type, h.delegatedHandler); // 81
} // 82
} // 83
// 84
h.delegatedHandler(evt); // 85
}; // 86
})(this); // 87
// 88
} else { // 89
this.mode = EVENT_MODE.BUBBLING; // 90
} // 91
}; // 92
EventSupport.HandlerRec = HandlerRec; // 93
// 94
HandlerRec.prototype.bind = function () { // 95
// `this.mode` may be EVENT_MODE_TBD, in which case we bind both. in // 96
// this case, 'capturingHandler' is in charge of detecting the // 97
// correct mode and turning off one or the other handlers. // 98
if (this.mode !== EVENT_MODE.BUBBLING) { // 99
DOMBackend.Events.bindEventCapturer( // 100
this.elem, this.type, this.selector || '*', // 101
this.capturingHandler); // 102
} // 103
// 104
if (this.mode !== EVENT_MODE.CAPTURING) // 105
DOMBackend.Events.delegateEvents( // 106
this.elem, this.type, // 107
this.selector || '*', this.delegatedHandler); // 108
}; // 109
// 110
HandlerRec.prototype.unbind = function () { // 111
if (this.mode !== EVENT_MODE.BUBBLING) // 112
DOMBackend.Events.unbindEventCapturer(this.elem, this.type, // 113
this.capturingHandler); // 114
// 115
if (this.mode !== EVENT_MODE.CAPTURING) // 116
DOMBackend.Events.undelegateEvents(this.elem, this.type, // 117
this.delegatedHandler); // 118
}; // 119
// 120
EventSupport.listen = function (element, events, selector, handler, recipient, getParentRecipient) { // 121
// 122
// Prevent this method from being JITed by Safari. Due to a // 123
// presumed JIT bug in Safari -- observed in Version 7.0.6 // 124
// (9537.78.2) -- this method may crash the Safari render process if // 125
// it is JITed. // 126
// Repro: https://github.com/dgreensp/public/tree/master/safari-crash // 127
try { element = element; } finally {} // 128
// 129
var eventTypes = []; // 130
events.replace(/[^ /]+/g, function (e) { // 131
eventTypes.push(e); // 132
}); // 133
// 134
var newHandlerRecs = []; // 135
for (var i = 0, N = eventTypes.length; i < N; i++) { // 136
var type = eventTypes[i]; // 137
// 138
var eventDict = element.$blaze_events; // 139
if (! eventDict) // 140
eventDict = (element.$blaze_events = {}); // 141
// 142
var info = eventDict[type]; // 143
if (! info) { // 144
info = eventDict[type] = {}; // 145
info.handlers = []; // 146
} // 147
var handlerList = info.handlers; // 148
var handlerRec = new HandlerRec( // 149
element, type, selector, handler, recipient); // 150
newHandlerRecs.push(handlerRec); // 151
handlerRec.bind(); // 152
handlerList.push(handlerRec); // 153
// Move handlers of enclosing ranges to end, by unbinding and rebinding // 154
// them. In jQuery (or other DOMBackend) this causes them to fire // 155
// later when the backend dispatches event handlers. // 156
if (getParentRecipient) { // 157
for (var r = getParentRecipient(recipient); r; // 158
r = getParentRecipient(r)) { // 159
// r is an enclosing range (recipient) // 160
for (var j = 0, Nj = handlerList.length; // 161
j < Nj; j++) { // 162
var h = handlerList[j]; // 163
if (h.recipient === r) { // 164
h.unbind(); // 165
h.bind(); // 166
handlerList.splice(j, 1); // remove handlerList[j] // 167
handlerList.push(h); // 168
j--; // account for removed handler // 169
Nj--; // don't visit appended handlers // 170
} // 171
} // 172
} // 173
} // 174
} // 175
// 176
return { // 177
// closes over just `element` and `newHandlerRecs` // 178
stop: function () { // 179
var eventDict = element.$blaze_events; // 180
if (! eventDict) // 181
return; // 182
// newHandlerRecs has only one item unless you specify multiple // 183
// event types. If this code is slow, it's because we have to // 184
// iterate over handlerList here. Clearing a whole handlerList // 185
// via stop() methods is O(N^2) in the number of handlers on // 186
// an element. // 187
for (var i = 0; i < newHandlerRecs.length; i++) { // 188
var handlerToRemove = newHandlerRecs[i]; // 189
var info = eventDict[handlerToRemove.type]; // 190
if (! info) // 191
continue; // 192
var handlerList = info.handlers; // 193
for (var j = handlerList.length - 1; j >= 0; j--) { // 194
if (handlerList[j] === handlerToRemove) { // 195
handlerToRemove.unbind(); // 196
handlerList.splice(j, 1); // remove handlerList[j] // 197
} // 198
} // 199
} // 200
newHandlerRecs.length = 0; // 201
} // 202
}; // 203
}; // 204
// 205
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////