504 lines
15 KiB
JavaScript
504 lines
15 KiB
JavaScript
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/**
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* jQuery Masonry v2.1.07
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* A dynamic layout plugin for jQuery
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* The flip-side of CSS Floats
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* http://masonry.desandro.com
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*
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* Licensed under the MIT license.
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* Copyright 2012 David DeSandro
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*/
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/*jshint browser: true, curly: true, eqeqeq: true, forin: false, immed: false, newcap: true, noempty: true, strict: true, undef: true */
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/*global jQuery: false */
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(function( window, $, undefined ){
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'use strict';
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/*
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* smartresize: debounced resize event for jQuery
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*
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* latest version and complete README available on Github:
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* https://github.com/louisremi/jquery.smartresize.js
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*
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* Copyright 2011 @louis_remi
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* Licensed under the MIT license.
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*/
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var $event = $.event,
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dispatchMethod = $.event.handle ? 'handle' : 'dispatch',
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resizeTimeout;
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$event.special.smartresize = {
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setup: function() {
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$(this).bind( "resize", $event.special.smartresize.handler );
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},
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teardown: function() {
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$(this).unbind( "resize", $event.special.smartresize.handler );
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},
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handler: function( event, execAsap ) {
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// Save the context
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var context = this,
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args = arguments;
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// set correct event type
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event.type = "smartresize";
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if ( resizeTimeout ) { clearTimeout( resizeTimeout ); }
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resizeTimeout = setTimeout(function() {
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$event[ dispatchMethod ].apply( context, args );
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}, execAsap === "execAsap"? 0 : 100 );
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}
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};
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$.fn.smartresize = function( fn ) {
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return fn ? this.bind( "smartresize", fn ) : this.trigger( "smartresize", ["execAsap"] );
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};
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// ========================= Masonry ===============================
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// our "Widget" object constructor
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$.Mason = function( options, element ){
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this.element = $( element );
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this._create( options );
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this._init();
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};
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$.Mason.settings = {
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isResizable: true,
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isAnimated: false,
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animationOptions: {
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queue: false,
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duration: 500
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},
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gutterWidth: 0,
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isRTL: false,
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isFitWidth: false,
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containerStyle: {
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position: 'relative'
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}
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};
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$.Mason.prototype = {
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_filterFindBricks: function( $elems ) {
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var selector = this.options.itemSelector;
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// if there is a selector
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// filter/find appropriate item elements
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return !selector ? $elems : $elems.filter( selector ).add( $elems.find( selector ) );
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},
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_getBricks: function( $elems ) {
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var $bricks = this._filterFindBricks( $elems )
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.css({ position: 'absolute' })
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.addClass('masonry-brick');
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return $bricks;
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},
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// sets up widget
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_create : function( options ) {
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this.options = $.extend( true, {}, $.Mason.settings, options );
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this.styleQueue = [];
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// get original styles in case we re-apply them in .destroy()
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var elemStyle = this.element[0].style;
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this.originalStyle = {
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// get height
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height: elemStyle.height || ''
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};
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// get other styles that will be overwritten
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var containerStyle = this.options.containerStyle;
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for ( var prop in containerStyle ) {
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this.originalStyle[ prop ] = elemStyle[ prop ] || '';
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}
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this.element.css( containerStyle );
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this.horizontalDirection = this.options.isRTL ? 'right' : 'left';
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var x = this.element.css( 'padding-' + this.horizontalDirection );
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var y = this.element.css( 'padding-top' );
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this.offset = {
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x: x ? parseInt( x, 10 ) : 0,
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y: y ? parseInt( y, 10 ) : 0
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};
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this.isFluid = this.options.columnWidth && typeof this.options.columnWidth === 'function';
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// add masonry class first time around
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var instance = this;
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setTimeout( function() {
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instance.element.addClass('masonry');
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}, 0 );
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// bind resize method
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if ( this.options.isResizable ) {
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$(window).bind( 'smartresize.masonry', function() {
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instance.resize();
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});
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}
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// need to get bricks
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this.reloadItems();
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},
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// _init fires when instance is first created
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// and when instance is triggered again -> $el.masonry();
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_init : function( callback ) {
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this._getColumns();
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this._reLayout( callback );
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},
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option: function( key, value ){
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// set options AFTER initialization:
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// signature: $('#foo').bar({ cool:false });
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if ( $.isPlainObject( key ) ){
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this.options = $.extend(true, this.options, key);
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}
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},
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// ====================== General Layout ======================
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// used on collection of atoms (should be filtered, and sorted before )
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// accepts atoms-to-be-laid-out to start with
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layout : function( $bricks, callback ) {
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// place each brick
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for (var i=0, len = $bricks.length; i < len; i++) {
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this._placeBrick( $bricks[i] );
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}
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// set the size of the container
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var containerSize = {};
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containerSize.height = Math.max.apply( Math, this.colYs );
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if ( this.options.isFitWidth ) {
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var unusedCols = 0;
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i = this.cols;
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// count unused columns
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while ( --i ) {
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if ( this.colYs[i] !== 0 ) {
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break;
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}
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unusedCols++;
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}
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// fit container to columns that have been used;
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containerSize.width = (this.cols - unusedCols) * this.columnWidth - this.options.gutterWidth;
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}
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this.styleQueue.push({ $el: this.element, style: containerSize });
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// are we animating the layout arrangement?
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// use plugin-ish syntax for css or animate
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var styleFn = !this.isLaidOut ? 'css' : (
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this.options.isAnimated ? 'animate' : 'css'
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),
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animOpts = this.options.animationOptions;
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// process styleQueue
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var obj;
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for (i=0, len = this.styleQueue.length; i < len; i++) {
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obj = this.styleQueue[i];
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obj.$el[ styleFn ]( obj.style, animOpts );
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}
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// clear out queue for next time
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this.styleQueue = [];
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// provide $elems as context for the callback
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if ( callback ) {
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callback.call( $bricks );
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}
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this.isLaidOut = true;
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},
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// calculates number of columns
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// i.e. this.columnWidth = 200
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_getColumns : function() {
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var container = this.options.isFitWidth ? this.element.parent() : this.element,
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containerWidth = container.width();
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// use fluid columnWidth function if there
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this.columnWidth = this.isFluid ? this.options.columnWidth( containerWidth ) :
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// if not, how about the explicitly set option?
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this.options.columnWidth ||
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// or use the size of the first item
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this.$bricks.outerWidth(true) ||
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// if there's no items, use size of container
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containerWidth;
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this.columnWidth += this.options.gutterWidth;
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this.cols = Math.floor( ( containerWidth + this.options.gutterWidth ) / this.columnWidth );
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this.cols = Math.max( this.cols, 1 );
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},
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// layout logic
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_placeBrick: function( brick ) {
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var $brick = $(brick),
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colSpan, groupCount, groupY, groupColY, j;
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//how many columns does this brick span
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colSpan = Math.ceil( $brick.outerWidth(true) / this.columnWidth );
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colSpan = Math.min( colSpan, this.cols );
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if ( colSpan === 1 ) {
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// if brick spans only one column, just like singleMode
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groupY = this.colYs;
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} else {
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// brick spans more than one column
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// how many different places could this brick fit horizontally
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groupCount = this.cols + 1 - colSpan;
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groupY = [];
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// for each group potential horizontal position
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for ( j=0; j < groupCount; j++ ) {
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// make an array of colY values for that one group
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groupColY = this.colYs.slice( j, j+colSpan );
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// and get the max value of the array
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groupY[j] = Math.max.apply( Math, groupColY );
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}
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}
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// get the minimum Y value from the columns
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var minimumY = Math.min.apply( Math, groupY ),
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shortCol = 0;
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// Find index of short column, the first from the left
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for (var i=0, len = groupY.length; i < len; i++) {
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if ( groupY[i] === minimumY ) {
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shortCol = i;
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break;
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}
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}
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// position the brick
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var position = {
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top: minimumY + this.offset.y
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};
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// position.left or position.right
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position[ this.horizontalDirection ] = this.columnWidth * shortCol + this.offset.x;
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this.styleQueue.push({ $el: $brick, style: position });
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// apply setHeight to necessary columns
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var setHeight = minimumY + $brick.outerHeight(true),
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setSpan = this.cols + 1 - len;
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for ( i=0; i < setSpan; i++ ) {
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this.colYs[ shortCol + i ] = setHeight;
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}
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},
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resize: function() {
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var prevColCount = this.cols;
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// get updated colCount
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this._getColumns();
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if ( this.isFluid || this.cols !== prevColCount ) {
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// if column count has changed, trigger new layout
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this._reLayout();
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}
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},
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_reLayout : function( callback ) {
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// reset columns
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var i = this.cols;
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this.colYs = [];
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while (i--) {
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this.colYs.push( 0 );
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}
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// apply layout logic to all bricks
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this.layout( this.$bricks, callback );
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},
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// ====================== Convenience methods ======================
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// goes through all children again and gets bricks in proper order
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reloadItems : function() {
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this.$bricks = this._getBricks( this.element.children() );
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},
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reload : function( callback ) {
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this.reloadItems();
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this._init( callback );
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},
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// convienence method for working with Infinite Scroll
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appended : function( $content, isAnimatedFromBottom, callback ) {
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if ( isAnimatedFromBottom ) {
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// set new stuff to the bottom
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this._filterFindBricks( $content ).css({ top: this.element.height() });
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var instance = this;
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setTimeout( function(){
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instance._appended( $content, callback );
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}, 1 );
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} else {
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this._appended( $content, callback );
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}
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},
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_appended : function( $content, callback ) {
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var $newBricks = this._getBricks( $content );
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// add new bricks to brick pool
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this.$bricks = this.$bricks.add( $newBricks );
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this.layout( $newBricks, callback );
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},
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// removes elements from Masonry widget
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remove : function( $content ) {
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this.$bricks = this.$bricks.not( $content );
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$content.remove();
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},
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// destroys widget, returns elements and container back (close) to original style
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destroy : function() {
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this.$bricks
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.removeClass('masonry-brick')
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.each(function(){
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this.style.position = '';
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this.style.top = '';
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this.style.left = '';
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});
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// re-apply saved container styles
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var elemStyle = this.element[0].style;
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for ( var prop in this.originalStyle ) {
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elemStyle[ prop ] = this.originalStyle[ prop ];
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}
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this.element
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.unbind('.masonry')
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.removeClass('masonry')
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.removeData('masonry');
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$(window).unbind('.masonry');
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}
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};
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// ======================= imagesLoaded Plugin ===============================
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/*!
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* jQuery imagesLoaded plugin v1.1.0
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* http://github.com/desandro/imagesloaded
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*
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* MIT License. by Paul Irish et al.
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*/
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// $('#my-container').imagesLoaded(myFunction)
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// or
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// $('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 );
|