forked from stutrek/masonry
-
Notifications
You must be signed in to change notification settings - Fork 1
/
jquery.masonry.js
682 lines (549 loc) · 19.2 KB
/
jquery.masonry.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
/**
* jQuery Masonry v2.1.05
* A dynamic layout plugin for jQuery
* The flip-side of CSS Floats
* http://masonry.desandro.com
*
* Licensed under the MIT license.
* Copyright 2012 David DeSandro
*/
/*jshint browser: true, curly: true, eqeqeq: true, forin: false, immed: false, newcap: true, noempty: true, strict: true, undef: true */
/*global jQuery: false */
(function( window, $, undefined ){
'use strict';
/*
* smartresize: debounced resize event for jQuery
*
* latest version and complete README available on Github:
* https://github.com/louisremi/jquery.smartresize.js
*
* Copyright 2011 @louis_remi
* Licensed under the MIT license.
*/
var $event = $.event,
resizeTimeout;
$event.special.smartresize = {
setup: function() {
$(this).bind( "resize", $event.special.smartresize.handler );
},
teardown: function() {
$(this).unbind( "resize", $event.special.smartresize.handler );
},
handler: function( event, execAsap ) {
// Save the context
var context = this,
args = arguments;
// set correct event type
event.type = "smartresize";
if ( resizeTimeout ) { clearTimeout( resizeTimeout ); }
resizeTimeout = setTimeout(function() {
$.event.handle.apply( context, args );
}, execAsap === "execAsap"? 0 : 100 );
}
};
$.fn.smartresize = function( fn ) {
return fn ? this.bind( "smartresize", fn ) : this.trigger( "smartresize", ["execAsap"] );
};
// ========================= Masonry ===============================
// our "Widget" object constructor
$.Mason = function( options, element ){
this.element = $( element );
this._create( options );
this._init();
};
$.Mason.settings = {
isResizable: true,
isDraggable: false,
dragHandleSelector: null,
dragClass: null,
isAnimated: false,
animationOptions: {
queue: false,
duration: 500
},
gutterWidth: 0,
isRTL: false,
isFitWidth: false,
containerStyle: {
position: 'relative'
}
};
$.Mason.prototype = {
_filterFindBricks: function( $elems ) {
var selector = this.options.itemSelector;
// if there is a selector
// filter/find appropriate item elements
return !selector ? $elems : $elems.filter( selector ).add( $elems.find( selector ) );
},
_getBricks: function( $elems ) {
var $bricks = this._filterFindBricks( $elems )
.css({ position: 'absolute' })
.addClass('masonry-brick');
return $bricks;
},
// sets up widget
_create : function( options ) {
this.options = $.extend( true, {}, $.Mason.settings, options );
this.styleQueue = [];
// get original styles in case we re-apply them in .destroy()
var elemStyle = this.element[0].style;
this.originalStyle = {
// get height
height: elemStyle.height || ''
};
// get other styles that will be overwritten
var containerStyle = this.options.containerStyle;
for ( var prop in containerStyle ) {
this.originalStyle[ prop ] = elemStyle[ prop ] || '';
}
this.element.css( containerStyle );
this.horizontalDirection = this.options.isRTL ? 'right' : 'left';
this.offset = {
x: parseInt( this.element.css( 'padding-' + this.horizontalDirection ), 10 ),
y: parseInt( this.element.css( 'padding-top' ), 10 )
};
this.isFluid = this.options.columnWidth && typeof this.options.columnWidth === 'function';
// add masonry class first time around
var instance = this;
setTimeout( function() {
instance.element.addClass('masonry');
}, 0 );
// bind resize method
if ( this.options.isResizable ) {
$(window).bind( 'smartresize.masonry', function() {
instance.resize();
});
}
// need to get bricks
this.reloadItems();
// set up dragging
if (this.options.isDraggable ){
this._initDrag(this.$bricks);
}
},
// _init fires when instance is first created
// and when instance is triggered again -> $el.masonry();
_init : function( callback ) {
this._getColumns();
this._reLayout( callback );
},
option: function( key, value ){
// set options AFTER initialization:
// signature: $('#foo').bar({ cool:false });
if ( $.isPlainObject( key ) ){
this.options = $.extend(true, this.options, key);
}
},
// ====================== General Layout ======================
// used on collection of atoms (should be filtered, and sorted before )
// accepts atoms-to-be-laid-out to start with
layout : function( $bricks, callback ) {
// place each brick
for (var i=0, len = $bricks.length; i < len; i++) {
this._placeBrick( $bricks[i] );
}
// set the size of the container
var containerSize = {};
containerSize.height = Math.max.apply( Math, this.colYs );
if ( this.options.isFitWidth ) {
var unusedCols = 0;
i = this.cols;
// count unused columns
while ( --i ) {
if ( this.colYs[i] !== 0 ) {
break;
}
unusedCols++;
}
// fit container to columns that have been used;
containerSize.width = (this.cols - unusedCols) * this.columnWidth - this.options.gutterWidth;
}
this.styleQueue.push({ $el: this.element, style: containerSize });
// are we animating the layout arrangement?
// use plugin-ish syntax for css or animate
var styleFn = !this.isLaidOut ? 'css' : (
this.options.isAnimated ? 'animate' : 'css'
),
animOpts = this.options.animationOptions;
// process styleQueue
var obj;
for (i=0, len = this.styleQueue.length; i < len; i++) {
obj = this.styleQueue[i];
obj.$el[ styleFn ]( obj.style, animOpts );
}
// clear out queue for next time
this.styleQueue = [];
// provide $elems as context for the callback
if ( callback ) {
callback.call( $bricks );
}
this.isLaidOut = true;
},
// calculates number of columns
// i.e. this.columnWidth = 200
_getColumns : function() {
var container = this.options.isFitWidth ? this.element.parent() : this.element,
containerWidth = container.width();
// use fluid columnWidth function if there
this.columnWidth = this.isFluid ? this.options.columnWidth( containerWidth ) :
// if not, how about the explicitly set option?
this.options.columnWidth ||
// or use the size of the first item
this.$bricks.outerWidth(true) ||
// if there's no items, use size of container
containerWidth;
this.columnWidth += this.options.gutterWidth;
this.cols = Math.floor( ( containerWidth + this.options.gutterWidth ) / this.columnWidth );
this.cols = Math.max( this.cols, 1 );
},
// layout logic
_placeBrick: function( brick ) {
var $brick = $(brick),
colSpan, groupCount, groupY, groupColY, j;
//how many columns does this brick span
colSpan = Math.ceil( $brick.outerWidth(true) / this.columnWidth );
colSpan = Math.min( colSpan, this.cols );
if ( colSpan === 1 ) {
// if brick spans only one column, just like singleMode
groupY = this.colYs;
} else {
// brick spans more than one column
// how many different places could this brick fit horizontally
groupCount = this.cols + 1 - colSpan;
groupY = [];
// for each group potential horizontal position
for ( j=0; j < groupCount; j++ ) {
// make an array of colY values for that one group
groupColY = this.colYs.slice( j, j+colSpan );
// and get the max value of the array
groupY[j] = Math.max.apply( Math, groupColY );
}
}
// get the minimum Y value from the columns
var minimumY = Math.min.apply( Math, groupY ),
shortCol = 0;
// Find index of short column, the first from the left
for (var i=0, len = groupY.length; i < len; i++) {
if ( groupY[i] === minimumY ) {
shortCol = i;
break;
}
}
// position the brick
var position = {
top: minimumY + this.offset.y
};
// position.left or position.right
position[ this.horizontalDirection ] = this.columnWidth * shortCol + this.offset.x;
this.styleQueue.push({ $el: $brick, style: position });
// apply setHeight to necessary columns
var setHeight = minimumY + $brick.outerHeight(true),
setSpan = this.cols + 1 - len;
for ( i=0; i < setSpan; i++ ) {
this.colYs[ shortCol + i ] = setHeight;
}
},
resize: function() {
var prevColCount = this.cols;
// get updated colCount
this._getColumns();
if ( this.isFluid || this.cols !== prevColCount ) {
// if column count has changed, trigger new layout
this._reLayout();
}
},
_reLayout : function( callback ) {
// reset columns
var i = this.cols;
this.colYs = [];
while (i--) {
this.colYs.push( 0 );
}
// apply layout logic to all bricks
this.layout( this.$bricks, callback );
},
// ====================== Convenience methods ======================
// goes through all children again and gets bricks in proper order
reloadItems : function() {
this.$bricks = this._getBricks( this.element.children() );
},
reload : function( callback ) {
this.reloadItems();
this._init( callback );
},
// convienence method for working with Infinite Scroll
appended : function( $content, isAnimatedFromBottom, callback ) {
if ( isAnimatedFromBottom ) {
// set new stuff to the bottom
this._filterFindBricks( $content ).css({ top: this.element.height() });
var instance = this;
setTimeout( function(){
instance._appended( $content, callback );
}, 1 );
} else {
this._appended( $content, callback );
}
},
_appended : function( $content, callback ) {
var $newBricks = this._getBricks( $content );
// add new bricks to brick pool
this.$bricks = this.$bricks.add( $newBricks );
this.layout( $newBricks, callback );
},
// removes elements from Masonry widget
remove : function( $content ) {
this.$bricks = this.$bricks.not( $content );
$content.remove();
},
// destroys widget, returns elements and container back (close) to original style
destroy : function() {
this.$bricks
.removeClass('masonry-brick')
.each(function(){
this.style.position = '';
this.style.top = '';
this.style.left = '';
});
// re-apply saved container styles
var elemStyle = this.element[0].style;
for ( var prop in this.originalStyle ) {
elemStyle[ prop ] = this.originalStyle[ prop ];
}
this.element
.unbind('.masonry')
.removeClass('masonry')
.removeData('masonry');
$(window).unbind('.masonry');
},
_getDistanceBetween : function(point1, point2){
var dx = point1.x - point2.x,
dy = point1.y - point2.y;
return Math.sqrt(dx*dx + dy*dy);
},
_getBrickPoint : function($brick){
var offset = $brick.offset();
return {
$brick: $brick,
x : offset.left + ($brick.outerWidth()/2),
y : offset.top + ($brick.outerHeight()/2)
};
},
_getClosestBrick : function(brick){
var $brick = $(brick),
_this = this,
dPoint = this._getBrickPoint($brick),
closest = null,
point, dist, $b, last, midpoint;
// find the index of the closest brick
this.$bricks.each(function(i, b){
$b = $(b);
point = _this._getBrickPoint($b);
// first check the distance from the brick center
dist = _this._getDistanceBetween(dPoint, point);
if(closest === null || dist < closest.dist){
closest = {
dist: dist,
$brick: $b,
index: (point.x > dPoint.x) ? i : i+1
};
}
// get the distance between the center of the line
// connecting the current and last block
if(typeof last !== 'undefined'){
midpoint = {
x : (last.x + point.x) / 2,
y : (last.y + point.y) / 2
};
dist = _this._getDistanceBetween(dPoint, midpoint);
if(dist < closest.dist){
closest = {
dist: dist,
$brick: $b,
index: (point.x > dPoint.x) ? i : i+1
};
}
}
last = point;
});
return closest;
},
_createGhostBrick : function($brick){
var closest = this._getClosestBrick($brick),
$ghost = $brick.clone().html('').addClass('drag-ghost'),
pos = $brick.position();
$ghost.css({
width : $brick.width(),
height : $brick.height()
});
this.$bricks.splice(closest.index, 0, $ghost[0]);
this.element.append($ghost);
this._reLayout();
return closest.index;
},
_initDrag : function($bricks){
var _this = this,
dragged = null,
pos, closest,
ghostInterval = null,
ghostIndex = -1,
ghostTime, ghostReset;
$bricks.bind('dragstart', function(e) {
// make sure we're dragging by the right thing
if(_this.options.dragHandleSelector !== null
&& !$(e.target).is(_this.options.dragHandleSelector)){
return false;
}
pos = $(this).position();
// add the dragClass
if(_this.options.dragClass !== null){
$(this).addClass(_this.options.dragClass);
}
// remove the brick being dragged from the array
dragged = this;
_this.$bricks = _this.$bricks.not(this);
_this._reLayout();
ghostTime = ghostReset = new Date().getTime();
ghostInterval = setInterval(function(){
if(ghostReset !== ghostTime){
if(ghostIndex !== -1){
// this kinda sucks because it doesn't use the original
// position of the bricks
if(_this._getClosestBrick($(dragged)).index === ghostIndex){
return;
}
$(_this.$bricks.splice(ghostIndex,1)).fadeOut(function(){
$(this).remove();
});
ghostIndex = -1;
_this._reLayout();
}
if(new Date().getTime() - ghostReset > 200){
ghostIndex = _this._createGhostBrick($(dragged));
ghostTime = ghostReset;
}
}
}, 100);
}).bind('drag', function(e, dd) {
$(this).css({
top : pos.top + dd.deltaY,
left : pos.left + dd.deltaX
});
ghostReset = new Date().getTime();
}).bind('dragend', function(e) {
// clear the ghosting interval
clearInterval(ghostInterval);
// remove the dragClass
if(_this.options.dragClass !== null){
$(this).removeClass(_this.options.dragClass);
}
// insert the brick back into the array
if(ghostIndex !== -1) {
var $ghost = $(_this.$bricks[ghostIndex]);
$ghost.fadeOut(function(){
$ghost.remove();
});
_this.$bricks[ghostIndex] = dragged;
ghostIndex = -1;
} else {
closest = _this._getClosestBrick(dragged);
_this.$bricks.splice(closest.index , 0, dragged);
}
dragged = null;
_this._reLayout();
});
}
};
// ======================= imagesLoaded Plugin ===============================
/*!
* jQuery imagesLoaded plugin v1.1.0
* http://github.com/desandro/imagesloaded
*
* MIT License. by Paul Irish et al.
*/
// $('#my-container').imagesLoaded(myFunction)
// or
// $('img').imagesLoaded(myFunction)
// execute a callback when all images have loaded.
// needed because .load() doesn't work on cached images
// callback function gets image collection as argument
// `this` is the container
$.fn.imagesLoaded = function( callback ) {
var $this = this,
$images = $this.find('img').add( $this.filter('img') ),
len = $images.length,
blank = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==',
loaded = [];
function triggerCallback() {
callback.call( $this, $images );
}
function imgLoaded( event ) {
var img = event.target;
if ( img.src !== blank && $.inArray( img, loaded ) === -1 ){
loaded.push( img );
if ( --len <= 0 ){
setTimeout( triggerCallback );
$images.unbind( '.imagesLoaded', imgLoaded );
}
}
}
// if no images, trigger immediately
if ( !len ) {
triggerCallback();
}
$images.bind( 'load.imagesLoaded error.imagesLoaded', imgLoaded ).each( function() {
// cached images don't fire load sometimes, so we reset src.
var src = this.src;
// webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
// data uri bypasses webkit log warning (thx doug jones)
this.src = blank;
this.src = src;
});
return $this;
};
// helper function for logging errors
// $.error breaks jQuery chaining
var logError = function( message ) {
if ( window.console ) {
window.console.error( message );
}
};
// ======================= Plugin bridge ===============================
// leverages data method to either create or return $.Mason constructor
// A bit from jQuery UI
// https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.widget.js
// A bit from jcarousel
// https://github.com/jsor/jcarousel/blob/master/lib/jquery.jcarousel.js
$.fn.masonry = function( options ) {
if ( typeof options === 'string' ) {
// call method
var args = Array.prototype.slice.call( arguments, 1 );
this.each(function(){
var instance = $.data( this, 'masonry' );
if ( !instance ) {
logError( "cannot call methods on masonry prior to initialization; " +
"attempted to call method '" + options + "'" );
return;
}
if ( !$.isFunction( instance[options] ) || options.charAt(0) === "_" ) {
logError( "no such method '" + options + "' for masonry instance" );
return;
}
// apply method
instance[ options ].apply( instance, args );
});
} else {
this.each(function() {
var instance = $.data( this, 'masonry' );
if ( instance ) {
// apply options & init
instance.option( options || {} );
instance._init();
} else {
// initialize new instance
$.data( this, 'masonry', new $.Mason( options, this ) );
}
});
}
return this;
};
})( window, jQuery );