/*!
* Masonry PACKAGED v4.2.0 * Cascading grid layout library * http://masonry.desandro.com * MIT License * by David DeSandro */
/**
* Bridget makes jQuery widgets * v2.0.1 * MIT license */
/* jshint browser: true, strict: true, undef: true, unused: true */
( function( window, factory ) {
// universal module definition /*jshint strict: false */ /* globals define, module, require */ if ( typeof define == 'function' && define.amd ) { // AMD define( 'jquery-bridget/jquery-bridget',[ 'jquery' ], function( jQuery ) { return factory( window, jQuery ); }); } else if ( typeof module == 'object' && module.exports ) { // CommonJS module.exports = factory( window, require('jquery') ); } else { // browser global window.jQueryBridget = factory( window, window.jQuery ); }
}( window, function factory( window, jQuery ) { 'use strict';
// ----- utils ----- //
var arraySlice = Array.prototype.slice;
// helper function for logging errors // $.error breaks jQuery chaining var console = window.console; var logError = typeof console == 'undefined' ? function() {} :
function( message ) { console.error( message ); };
// ----- jQueryBridget ----- //
function jQueryBridget( namespace, PluginClass, $ ) {
$ = $ || jQuery || window.jQuery; if ( !$ ) { return; }
// add option method -> $().plugin('option', {...}) if ( !PluginClass.prototype.option ) { // option setter PluginClass.prototype.option = function( opts ) { // bail out if not an object if ( !$.isPlainObject( opts ) ){ return; } this.options = $.extend( true, this.options, opts ); }; }
// make jQuery plugin $.fn[ namespace ] = function( arg0 /*, arg1 */ ) { if ( typeof arg0 == 'string' ) { // method call $().plugin( 'methodName', { options } ) // shift arguments by 1 var args = arraySlice.call( arguments, 1 ); return methodCall( this, arg0, args ); } // just $().plugin({ options }) plainCall( this, arg0 ); return this; };
// $().plugin('methodName') function methodCall( $elems, methodName, args ) { var returnValue; var pluginMethodStr = '$().' + namespace + '("' + methodName + '")';
$elems.each( function( i, elem ) { // get instance var instance = $.data( elem, namespace ); if ( !instance ) { logError( namespace + ' not initialized. Cannot call methods, i.e. ' + pluginMethodStr ); return; }
var method = instance[ methodName ]; if ( !method || methodName.charAt(0) == '_' ) { logError( pluginMethodStr + ' is not a valid method' ); return; }
// apply method, get return value var value = method.apply( instance, args ); // set return value if value is returned, use only first value returnValue = returnValue === undefined ? value : returnValue; });
return returnValue !== undefined ? returnValue : $elems; }
function plainCall( $elems, options ) { $elems.each( function( i, elem ) { var instance = $.data( elem, namespace ); if ( instance ) { // set options & init instance.option( options ); instance._init(); } else { // initialize new instance instance = new PluginClass( elem, options ); $.data( elem, namespace, instance ); } }); }
updateJQuery( $ );
}
// ----- updateJQuery ----- //
// set $.bridget for v1 backwards compatibility function updateJQuery( $ ) {
if ( !$ || ( $ && $.bridget ) ) { return; } $.bridget = jQueryBridget;
}
updateJQuery( jQuery || window.jQuery );
// ----- ----- //
return jQueryBridget;
}));
/**
* EvEmitter v1.0.3 * Lil' event emitter * MIT License */
/* jshint unused: true, undef: true, strict: true */
( function( global, factory ) {
// universal module definition /* jshint strict: false */ /* globals define, module, window */ if ( typeof define == 'function' && define.amd ) { // AMD - RequireJS define( 'ev-emitter/ev-emitter',factory ); } else if ( typeof module == 'object' && module.exports ) { // CommonJS - Browserify, Webpack module.exports = factory(); } else { // Browser globals global.EvEmitter = factory(); }
}( typeof window != 'undefined' ? window : this, function() {
function EvEmitter() {}
var proto = EvEmitter.prototype;
proto.on = function( eventName, listener ) {
if ( !eventName || !listener ) { return; } // set events hash var events = this._events = this._events || {}; // set listeners array var listeners = events[ eventName ] = events[ eventName ] || []; // only add once if ( listeners.indexOf( listener ) == -1 ) { listeners.push( listener ); }
return this;
};
proto.once = function( eventName, listener ) {
if ( !eventName || !listener ) { return; } // add event this.on( eventName, listener ); // set once flag // set onceEvents hash var onceEvents = this._onceEvents = this._onceEvents || {}; // set onceListeners object var onceListeners = onceEvents[ eventName ] = onceEvents[ eventName ] || {}; // set flag onceListeners[ listener ] = true;
return this;
};
proto.off = function( eventName, listener ) {
var listeners = this._events && this._events[ eventName ]; if ( !listeners || !listeners.length ) { return; } var index = listeners.indexOf( listener ); if ( index != -1 ) { listeners.splice( index, 1 ); }
return this;
};
proto.emitEvent = function( eventName, args ) {
var listeners = this._events && this._events[ eventName ]; if ( !listeners || !listeners.length ) { return; } var i = 0; var listener = listeners[i]; args = args || []; // once stuff var onceListeners = this._onceEvents && this._onceEvents[ eventName ];
while ( listener ) { var isOnce = onceListeners && onceListeners[ listener ]; if ( isOnce ) { // remove listener // remove before trigger to prevent recursion this.off( eventName, listener ); // unset once flag delete onceListeners[ listener ]; } // trigger listener listener.apply( this, args ); // get next listener i += isOnce ? 0 : 1; listener = listeners[i]; }
return this;
};
return EvEmitter;
}));
/*!
* getSize v2.0.2 * measure size of elements * MIT license */
/*jshint browser: true, strict: true, undef: true, unused: true */ /*global define: false, module: false, console: false */
( function( window, factory ) {
'use strict';
if ( typeof define == 'function' && define.amd ) { // AMD define( 'get-size/get-size',[],function() { return factory(); }); } else if ( typeof module == 'object' && module.exports ) { // CommonJS module.exports = factory(); } else { // browser global window.getSize = factory(); }
})( window, function factory() { 'use strict';
// -------------------------- helpers -------------------------- //
// get a number from a string, not a percentage function getStyleSize( value ) {
var num = parseFloat( value ); // not a percent like '100%', and a number var isValid = value.indexOf('%') == -1 && !isNaN( num ); return isValid && num;
}
function noop() {}
var logError = typeof console == 'undefined' ? noop :
function( message ) { console.error( message ); };
// -------------------------- measurements -------------------------- //
var measurements = [
'paddingLeft', 'paddingRight', 'paddingTop', 'paddingBottom', 'marginLeft', 'marginRight', 'marginTop', 'marginBottom', 'borderLeftWidth', 'borderRightWidth', 'borderTopWidth', 'borderBottomWidth'
];
var measurementsLength = measurements.length;
function getZeroSize() {
var size = { width: 0, height: 0, innerWidth: 0, innerHeight: 0, outerWidth: 0, outerHeight: 0 }; for ( var i=0; i < measurementsLength; i++ ) { var measurement = measurements[i]; size[ measurement ] = 0; } return size;
}
// -------------------------- getStyle -------------------------- //
/**
* getStyle, get style of element, check for Firefox bug * https://bugzilla.mozilla.org/show_bug.cgi?id=548397 */
function getStyle( elem ) {
var style = getComputedStyle( elem ); if ( !style ) { logError( 'Style returned ' + style + '. Are you running this code in a hidden iframe on Firefox? ' + 'See http://bit.ly/getsizebug1' ); } return style;
}
// -------------------------- setup -------------------------- //
var isSetup = false;
var isBoxSizeOuter;
/**
* setup * check isBoxSizerOuter * do on first getSize() rather than on page load for Firefox bug */
function setup() {
// setup once if ( isSetup ) { return; } isSetup = true;
// -------------------------- box sizing -------------------------- //
/** * WebKit measures the outer-width on style.width on border-box elems * IE & Firefox<29 measures the inner-width */ var div = document.createElement('div'); div.style.width = '200px'; div.style.padding = '1px 2px 3px 4px'; div.style.borderStyle = 'solid'; div.style.borderWidth = '1px 2px 3px 4px'; div.style.boxSizing = 'border-box';
var body = document.body || document.documentElement; body.appendChild( div ); var style = getStyle( div );
getSize.isBoxSizeOuter = isBoxSizeOuter = getStyleSize( style.width ) == 200; body.removeChild( div );
}
// -------------------------- getSize -------------------------- //
function getSize( elem ) {
setup();
// use querySeletor if elem is string if ( typeof elem == 'string' ) { elem = document.querySelector( elem ); }
// do not proceed on non-objects if ( !elem || typeof elem != 'object' || !elem.nodeType ) { return; }
var style = getStyle( elem );
// if hidden, everything is 0 if ( style.display == 'none' ) { return getZeroSize(); }
var size = {}; size.width = elem.offsetWidth; size.height = elem.offsetHeight;
var isBorderBox = size.isBorderBox = style.boxSizing == 'border-box';
// get all measurements for ( var i=0; i < measurementsLength; i++ ) { var measurement = measurements[i]; var value = style[ measurement ]; var num = parseFloat( value ); // any 'auto', 'medium' value will be 0 size[ measurement ] = !isNaN( num ) ? num : 0; }
var paddingWidth = size.paddingLeft + size.paddingRight; var paddingHeight = size.paddingTop + size.paddingBottom; var marginWidth = size.marginLeft + size.marginRight; var marginHeight = size.marginTop + size.marginBottom; var borderWidth = size.borderLeftWidth + size.borderRightWidth; var borderHeight = size.borderTopWidth + size.borderBottomWidth;
var isBorderBoxSizeOuter = isBorderBox && isBoxSizeOuter;
// overwrite width and height if we can get it from style var styleWidth = getStyleSize( style.width ); if ( styleWidth !== false ) { size.width = styleWidth + // add padding and border unless it's already including it ( isBorderBoxSizeOuter ? 0 : paddingWidth + borderWidth ); }
var styleHeight = getStyleSize( style.height ); if ( styleHeight !== false ) { size.height = styleHeight + // add padding and border unless it's already including it ( isBorderBoxSizeOuter ? 0 : paddingHeight + borderHeight ); }
size.innerWidth = size.width - ( paddingWidth + borderWidth ); size.innerHeight = size.height - ( paddingHeight + borderHeight );
size.outerWidth = size.width + marginWidth; size.outerHeight = size.height + marginHeight;
return size;
}
return getSize;
});
/**
* matchesSelector v2.0.2 * matchesSelector( element, '.selector' ) * MIT license */
/*jshint browser: true, strict: true, undef: true, unused: true */
( function( window, factory ) {
/*global define: false, module: false */ 'use strict'; // universal module definition if ( typeof define == 'function' && define.amd ) { // AMD define( 'desandro-matches-selector/matches-selector',factory ); } else if ( typeof module == 'object' && module.exports ) { // CommonJS module.exports = factory(); } else { // browser global window.matchesSelector = factory(); }
}( window, function factory() {
'use strict';
var matchesMethod = ( function() { var ElemProto = window.Element.prototype; // check for the standard method name first if ( ElemProto.matches ) { return 'matches'; } // check un-prefixed if ( ElemProto.matchesSelector ) { return 'matchesSelector'; } // check vendor prefixes var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];
for ( var i=0; i < prefixes.length; i++ ) { var prefix = prefixes[i]; var method = prefix + 'MatchesSelector'; if ( ElemProto[ method ] ) { return method; } } })();
return function matchesSelector( elem, selector ) { return elem[ matchesMethod ]( selector ); };
}));
/**
* Fizzy UI utils v2.0.4 * MIT license */
/*jshint browser: true, undef: true, unused: true, strict: true */
( function( window, factory ) {
// universal module definition /*jshint strict: false */ /*globals define, module, require */
if ( typeof define == 'function' && define.amd ) { // AMD define( 'fizzy-ui-utils/utils',[ 'desandro-matches-selector/matches-selector' ], function( matchesSelector ) { return factory( window, matchesSelector ); }); } else if ( typeof module == 'object' && module.exports ) { // CommonJS module.exports = factory( window, require('desandro-matches-selector') ); } else { // browser global window.fizzyUIUtils = factory( window, window.matchesSelector ); }
}( window, function factory( window, matchesSelector ) {
var utils = {};
// ----- extend ----- //
// extends objects utils.extend = function( a, b ) {
for ( var prop in b ) { a[ prop ] = b[ prop ]; } return a;
};
// ----- modulo ----- //
utils.modulo = function( num, div ) {
return ( ( num % div ) + div ) % div;
};
// ----- makeArray ----- //
// turn element or nodeList into an array utils.makeArray = function( obj ) {
var ary = []; if ( Array.isArray( obj ) ) { // use object if already an array ary = obj; } else if ( obj && typeof obj == 'object' && typeof obj.length == 'number' ) { // convert nodeList to array for ( var i=0; i < obj.length; i++ ) { ary.push( obj[i] ); } } else { // array of single index ary.push( obj ); } return ary;
};
// ----- removeFrom ----- //
utils.removeFrom = function( ary, obj ) {
var index = ary.indexOf( obj ); if ( index != -1 ) { ary.splice( index, 1 ); }
};
// ----- getParent ----- //
utils.getParent = function( elem, selector ) {
while ( elem != document.body ) { elem = elem.parentNode; if ( matchesSelector( elem, selector ) ) { return elem; } }
};
// ----- getQueryElement ----- //
// use element as selector string utils.getQueryElement = function( elem ) {
if ( typeof elem == 'string' ) { return document.querySelector( elem ); } return elem;
};
// ----- handleEvent ----- //
// enable .ontype to trigger from .addEventListener( elem, 'type' ) utils.handleEvent = function( event ) {
var method = 'on' + event.type; if ( this[ method ] ) { this[ method ]( event ); }
};
// ----- filterFindElements ----- //
utils.filterFindElements = function( elems, selector ) {
// make array of elems elems = utils.makeArray( elems ); var ffElems = [];
elems.forEach( function( elem ) { // check that elem is an actual element if ( !( elem instanceof HTMLElement ) ) { return; } // add elem if no selector if ( !selector ) { ffElems.push( elem ); return; } // filter & find items if we have a selector // filter if ( matchesSelector( elem, selector ) ) { ffElems.push( elem ); } // find children var childElems = elem.querySelectorAll( selector ); // concat childElems to filterFound array for ( var i=0; i < childElems.length; i++ ) { ffElems.push( childElems[i] ); } });
return ffElems;
};
// ----- debounceMethod ----- //
utils.debounceMethod = function( _class, methodName, threshold ) {
// original method var method = _class.prototype[ methodName ]; var timeoutName = methodName + 'Timeout';
_class.prototype[ methodName ] = function() { var timeout = this[ timeoutName ]; if ( timeout ) { clearTimeout( timeout ); } var args = arguments;
var _this = this; this[ timeoutName ] = setTimeout( function() { method.apply( _this, args ); delete _this[ timeoutName ]; }, threshold || 100 ); };
};
// ----- docReady ----- //
utils.docReady = function( callback ) {
var readyState = document.readyState; if ( readyState == 'complete' || readyState == 'interactive' ) { // do async to allow for other scripts to run. metafizzy/flickity#441 setTimeout( callback ); } else { document.addEventListener( 'DOMContentLoaded', callback ); }
};
// ----- htmlInit ----- //
// http://jamesroberts.name/blog/2010/02/22/string-functions-for-javascript-trim-to-camel-case-to-dashed-and-to-underscore/ utils.toDashed = function( str ) {
return str.replace( /(.)([A-Z])/g, function( match, $1, $2 ) { return $1 + '-' + $2; }).toLowerCase();
};
var console = window.console; /**
* allow user to initialize classes via [data-namespace] or .js-namespace class * htmlInit( Widget, 'widgetName' ) * options are parsed from data-namespace-options */
utils.htmlInit = function( WidgetClass, namespace ) {
utils.docReady( function() { var dashedNamespace = utils.toDashed( namespace ); var dataAttr = 'data-' + dashedNamespace; var dataAttrElems = document.querySelectorAll( '[' + dataAttr + ']' ); var jsDashElems = document.querySelectorAll( '.js-' + dashedNamespace ); var elems = utils.makeArray( dataAttrElems ) .concat( utils.makeArray( jsDashElems ) ); var dataOptionsAttr = dataAttr + '-options'; var jQuery = window.jQuery;
elems.forEach( function( elem ) { var attr = elem.getAttribute( dataAttr ) || elem.getAttribute( dataOptionsAttr ); var options; try { options = attr && JSON.parse( attr ); } catch ( error ) { // log error, do not initialize if ( console ) { console.error( 'Error parsing ' + dataAttr + ' on ' + elem.className + ': ' + error ); } return; } // initialize var instance = new WidgetClass( elem, options ); // make available via $().data('namespace') if ( jQuery ) { jQuery.data( elem, namespace, instance ); } });
});
};
// ----- ----- //
return utils;
}));
/**
* Outlayer Item */
( function( window, factory ) {
// universal module definition /* jshint strict: false */ /* globals define, module, require */ if ( typeof define == 'function' && define.amd ) { // AMD - RequireJS define( 'outlayer/item',[ 'ev-emitter/ev-emitter', 'get-size/get-size' ], factory ); } else if ( typeof module == 'object' && module.exports ) { // CommonJS - Browserify, Webpack module.exports = factory( require('ev-emitter'), require('get-size') ); } else { // browser global window.Outlayer = {}; window.Outlayer.Item = factory( window.EvEmitter, window.getSize ); }
}( window, function factory( EvEmitter, getSize ) { 'use strict';
// ----- helpers ----- //
function isEmptyObj( obj ) {
for ( var prop in obj ) { return false; } prop = null; return true;
}
// -------------------------- CSS3 support -------------------------- //
var docElemStyle = document.documentElement.style;
var transitionProperty = typeof docElemStyle.transition == 'string' ?
'transition' : 'WebkitTransition';
var transformProperty = typeof docElemStyle.transform == 'string' ?
'transform' : 'WebkitTransform';
var transitionEndEvent = {
WebkitTransition: 'webkitTransitionEnd', transition: 'transitionend'
}[ transitionProperty ];
// cache all vendor properties that could have vendor prefix var vendorProperties = {
transform: transformProperty, transition: transitionProperty, transitionDuration: transitionProperty + 'Duration', transitionProperty: transitionProperty + 'Property', transitionDelay: transitionProperty + 'Delay'
};
// -------------------------- Item -------------------------- //
function Item( element, layout ) {
if ( !element ) { return; }
this.element = element; // parent layout class, i.e. Masonry, Isotope, or Packery this.layout = layout; this.position = { x: 0, y: 0 };
this._create();
}
// inherit EvEmitter var proto = Item.prototype = Object.create( EvEmitter.prototype ); proto.constructor = Item;
proto._create = function() {
// transition objects this._transn = { ingProperties: {}, clean: {}, onEnd: {} };
this.css({ position: 'absolute' });
};
// trigger specified handler for event type proto.handleEvent = function( event ) {
var method = 'on' + event.type; if ( this[ method ] ) { this[ method ]( event ); }
};
proto.getSize = function() {
this.size = getSize( this.element );
};
/**
* apply CSS styles to element * @param {Object} style */
proto.css = function( style ) {
var elemStyle = this.element.style;
for ( var prop in style ) { // use vendor property if available var supportedProp = vendorProperties[ prop ] || prop; elemStyle[ supportedProp ] = style[ prop ]; }
};
// measure position, and sets it
proto.getPosition = function() {
var style = getComputedStyle( this.element ); var isOriginLeft = this.layout._getOption('originLeft'); var isOriginTop = this.layout._getOption('originTop'); var xValue = style[ isOriginLeft ? 'left' : 'right' ]; var yValue = style[ isOriginTop ? 'top' : 'bottom' ]; // convert percent to pixels var layoutSize = this.layout.size; var x = xValue.indexOf('%') != -1 ? ( parseFloat( xValue ) / 100 ) * layoutSize.width : parseInt( xValue, 10 ); var y = yValue.indexOf('%') != -1 ? ( parseFloat( yValue ) / 100 ) * layoutSize.height : parseInt( yValue, 10 );
// clean up 'auto' or other non-integer values x = isNaN( x ) ? 0 : x; y = isNaN( y ) ? 0 : y; // remove padding from measurement x -= isOriginLeft ? layoutSize.paddingLeft : layoutSize.paddingRight; y -= isOriginTop ? layoutSize.paddingTop : layoutSize.paddingBottom;
this.position.x = x; this.position.y = y;
};
// set settled position, apply padding proto.layoutPosition = function() {
var layoutSize = this.layout.size; var style = {}; var isOriginLeft = this.layout._getOption('originLeft'); var isOriginTop = this.layout._getOption('originTop');
// x var xPadding = isOriginLeft ? 'paddingLeft' : 'paddingRight'; var xProperty = isOriginLeft ? 'left' : 'right'; var xResetProperty = isOriginLeft ? 'right' : 'left';
var x = this.position.x + layoutSize[ xPadding ]; // set in percentage or pixels style[ xProperty ] = this.getXValue( x ); // reset other property style[ xResetProperty ] = ;
// y var yPadding = isOriginTop ? 'paddingTop' : 'paddingBottom'; var yProperty = isOriginTop ? 'top' : 'bottom'; var yResetProperty = isOriginTop ? 'bottom' : 'top';
var y = this.position.y + layoutSize[ yPadding ]; // set in percentage or pixels style[ yProperty ] = this.getYValue( y ); // reset other property style[ yResetProperty ] = ;
this.css( style ); this.emitEvent( 'layout', [ this ] );
};
proto.getXValue = function( x ) {
var isHorizontal = this.layout._getOption('horizontal'); return this.layout.options.percentPosition && !isHorizontal ? ( ( x / this.layout.size.width ) * 100 ) + '%' : x + 'px';
};
proto.getYValue = function( y ) {
var isHorizontal = this.layout._getOption('horizontal'); return this.layout.options.percentPosition && isHorizontal ? ( ( y / this.layout.size.height ) * 100 ) + '%' : y + 'px';
};
proto._transitionTo = function( x, y ) {
this.getPosition(); // get current x & y from top/left var curX = this.position.x; var curY = this.position.y;
var compareX = parseInt( x, 10 ); var compareY = parseInt( y, 10 ); var didNotMove = compareX === this.position.x && compareY === this.position.y;
// save end position this.setPosition( x, y );
// if did not move and not transitioning, just go to layout if ( didNotMove && !this.isTransitioning ) { this.layoutPosition(); return; }
var transX = x - curX; var transY = y - curY; var transitionStyle = {}; transitionStyle.transform = this.getTranslate( transX, transY );
this.transition({ to: transitionStyle, onTransitionEnd: { transform: this.layoutPosition }, isCleaning: true });
};
proto.getTranslate = function( x, y ) {
// flip cooridinates if origin on right or bottom var isOriginLeft = this.layout._getOption('originLeft'); var isOriginTop = this.layout._getOption('originTop'); x = isOriginLeft ? x : -x; y = isOriginTop ? y : -y; return 'translate3d(' + x + 'px, ' + y + 'px, 0)';
};
// non transition + transform support proto.goTo = function( x, y ) {
this.setPosition( x, y ); this.layoutPosition();
};
proto.moveTo = proto._transitionTo;
proto.setPosition = function( x, y ) {
this.position.x = parseInt( x, 10 ); this.position.y = parseInt( y, 10 );
};
// ----- transition ----- //
/**
* @param {Object} style - CSS * @param {Function} onTransitionEnd */
// non transition, just trigger callback proto._nonTransition = function( args ) {
this.css( args.to ); if ( args.isCleaning ) { this._removeStyles( args.to ); } for ( var prop in args.onTransitionEnd ) { args.onTransitionEnd[ prop ].call( this ); }
};
/**
* proper transition * @param {Object} args - arguments * @param {Object} to - style to transition to * @param {Object} from - style to start transition from * @param {Boolean} isCleaning - removes transition styles after transition * @param {Function} onTransitionEnd - callback */
proto.transition = function( args ) {
// redirect to nonTransition if no transition duration if ( !parseFloat( this.layout.options.transitionDuration ) ) { this._nonTransition( args ); return; }
var _transition = this._transn; // keep track of onTransitionEnd callback by css property for ( var prop in args.onTransitionEnd ) { _transition.onEnd[ prop ] = args.onTransitionEnd[ prop ]; } // keep track of properties that are transitioning for ( prop in args.to ) { _transition.ingProperties[ prop ] = true; // keep track of properties to clean up when transition is done if ( args.isCleaning ) { _transition.clean[ prop ] = true; } }
// set from styles if ( args.from ) { this.css( args.from ); // force redraw. http://blog.alexmaccaw.com/css-transitions var h = this.element.offsetHeight; // hack for JSHint to hush about unused var h = null; } // enable transition this.enableTransition( args.to ); // set styles that are transitioning this.css( args.to );
this.isTransitioning = true;
};
// dash before all cap letters, including first for // WebkitTransform => -webkit-transform function toDashedAll( str ) {
return str.replace( /([A-Z])/g, function( $1 ) { return '-' + $1.toLowerCase(); });
}
var transitionProps = 'opacity,' + toDashedAll( transformProperty );
proto.enableTransition = function(/* style */) {
// HACK changing transitionProperty during a transition // will cause transition to jump if ( this.isTransitioning ) { return; }
// make `transition: foo, bar, baz` from style object // HACK un-comment this when enableTransition can work // while a transition is happening // var transitionValues = []; // for ( var prop in style ) { // // dash-ify camelCased properties like WebkitTransition // prop = vendorProperties[ prop ] || prop; // transitionValues.push( toDashedAll( prop ) ); // } // munge number to millisecond, to match stagger var duration = this.layout.options.transitionDuration; duration = typeof duration == 'number' ? duration + 'ms' : duration; // enable transition styles this.css({ transitionProperty: transitionProps, transitionDuration: duration, transitionDelay: this.staggerDelay || 0 }); // listen for transition end event this.element.addEventListener( transitionEndEvent, this, false );
};
// ----- events ----- //
proto.onwebkitTransitionEnd = function( event ) {
this.ontransitionend( event );
};
proto.onotransitionend = function( event ) {
this.ontransitionend( event );
};
// properties that I munge to make my life easier var dashedVendorProperties = {
'-webkit-transform': 'transform'
};
proto.ontransitionend = function( event ) {
// disregard bubbled events from children if ( event.target !== this.element ) { return; } var _transition = this._transn; // get property name of transitioned property, convert to prefix-free var propertyName = dashedVendorProperties[ event.propertyName ] || event.propertyName;
// remove property that has completed transitioning delete _transition.ingProperties[ propertyName ]; // check if any properties are still transitioning if ( isEmptyObj( _transition.ingProperties ) ) { // all properties have completed transitioning this.disableTransition(); } // clean style if ( propertyName in _transition.clean ) { // clean up style this.element.style[ event.propertyName ] = ; delete _transition.clean[ propertyName ]; } // trigger onTransitionEnd callback if ( propertyName in _transition.onEnd ) { var onTransitionEnd = _transition.onEnd[ propertyName ]; onTransitionEnd.call( this ); delete _transition.onEnd[ propertyName ]; }
this.emitEvent( 'transitionEnd', [ this ] );
};
proto.disableTransition = function() {
this.removeTransitionStyles(); this.element.removeEventListener( transitionEndEvent, this, false ); this.isTransitioning = false;
};
/**
* removes style property from element * @param {Object} style
- /
proto._removeStyles = function( style ) {
// clean up transition styles var cleanStyle = {}; for ( var prop in style ) { cleanStyle[ prop ] = ; } this.css( cleanStyle );
};
var cleanTransitionStyle = {
transitionProperty: , transitionDuration: , transitionDelay:
};
proto.removeTransitionStyles = function() {
// remove transition this.css( cleanTransitionStyle );
};
// ----- stagger ----- //
proto.stagger = function( delay ) {
delay = isNaN( delay ) ? 0 : delay; this.staggerDelay = delay + 'ms';
};
// ----- show/hide/remove ----- //
// remove element from DOM proto.removeElem = function() {
this.element.parentNode.removeChild( this.element ); // remove display: none this.css({ display: }); this.emitEvent( 'remove', [ this ] );
};
proto.remove = function() {
// just remove element if no transition support or no transition if ( !transitionProperty || !parseFloat( this.layout.options.transitionDuration ) ) { this.removeElem(); return; }
// start transition this.once( 'transitionEnd', function() { this.removeElem(); }); this.hide();
};
proto.reveal = function() {
delete this.isHidden; // remove display: none this.css({ display: });
var options = this.layout.options;
var onTransitionEnd = {}; var transitionEndProperty = this.getHideRevealTransitionEndProperty('visibleStyle'); onTransitionEnd[ transitionEndProperty ] = this.onRevealTransitionEnd;
this.transition({ from: options.hiddenStyle, to: options.visibleStyle, isCleaning: true, onTransitionEnd: onTransitionEnd });
};
proto.onRevealTransitionEnd = function() {
// check if still visible // during transition, item may have been hidden if ( !this.isHidden ) { this.emitEvent('reveal'); }
};
/**
* get style property use for hide/reveal transition end * @param {String} styleProperty - hiddenStyle/visibleStyle * @returns {String} */
proto.getHideRevealTransitionEndProperty = function( styleProperty ) {
var optionStyle = this.layout.options[ styleProperty ]; // use opacity if ( optionStyle.opacity ) { return 'opacity'; } // get first property for ( var prop in optionStyle ) { return prop; }
};
proto.hide = function() {
// set flag this.isHidden = true; // remove display: none this.css({ display: });
var options = this.layout.options;
var onTransitionEnd = {}; var transitionEndProperty = this.getHideRevealTransitionEndProperty('hiddenStyle'); onTransitionEnd[ transitionEndProperty ] = this.onHideTransitionEnd;
this.transition({ from: options.visibleStyle, to: options.hiddenStyle, // keep hidden stuff hidden isCleaning: true, onTransitionEnd: onTransitionEnd });
};
proto.onHideTransitionEnd = function() {
// check if still hidden // during transition, item may have been un-hidden if ( this.isHidden ) { this.css({ display: 'none' }); this.emitEvent('hide'); }
};
proto.destroy = function() {
this.css({ position: , left: , right: , top: , bottom: , transition: , transform: });
};
return Item;
}));
/*!
* Outlayer v2.1.0 * the brains and guts of a layout library * MIT license */
( function( window, factory ) {
'use strict'; // universal module definition /* jshint strict: false */ /* globals define, module, require */ if ( typeof define == 'function' && define.amd ) { // AMD - RequireJS define( 'outlayer/outlayer',[ 'ev-emitter/ev-emitter', 'get-size/get-size', 'fizzy-ui-utils/utils', './item' ], function( EvEmitter, getSize, utils, Item ) { return factory( window, EvEmitter, getSize, utils, Item); } ); } else if ( typeof module == 'object' && module.exports ) { // CommonJS - Browserify, Webpack module.exports = factory( window, require('ev-emitter'), require('get-size'), require('fizzy-ui-utils'), require('./item') ); } else { // browser global window.Outlayer = factory( window, window.EvEmitter, window.getSize, window.fizzyUIUtils, window.Outlayer.Item ); }
}( window, function factory( window, EvEmitter, getSize, utils, Item ) { 'use strict';
// ----- vars ----- //
var console = window.console; var jQuery = window.jQuery; var noop = function() {};
// -------------------------- Outlayer -------------------------- //
// globally unique identifiers var GUID = 0; // internal store of all Outlayer intances var instances = {};
/**
* @param {Element, String} element * @param {Object} options * @constructor */
function Outlayer( element, options ) {
var queryElement = utils.getQueryElement( element ); if ( !queryElement ) { if ( console ) { console.error( 'Bad element for ' + this.constructor.namespace + ': ' + ( queryElement || element ) ); } return; } this.element = queryElement; // add jQuery if ( jQuery ) { this.$element = jQuery( this.element ); }
// options this.options = utils.extend( {}, this.constructor.defaults ); this.option( options );
// add id for Outlayer.getFromElement var id = ++GUID; this.element.outlayerGUID = id; // expando instances[ id ] = this; // associate via id
// kick it off this._create();
var isInitLayout = this._getOption('initLayout'); if ( isInitLayout ) { this.layout(); }
}
// settings are for internal use only Outlayer.namespace = 'outlayer'; Outlayer.Item = Item;
// default options Outlayer.defaults = {
containerStyle: { position: 'relative' }, initLayout: true, originLeft: true, originTop: true, resize: true, resizeContainer: true, // item options transitionDuration: '0.4s', hiddenStyle: { opacity: 0, transform: 'scale(0.001)' }, visibleStyle: { opacity: 1, transform: 'scale(1)' }
};
var proto = Outlayer.prototype; // inherit EvEmitter utils.extend( proto, EvEmitter.prototype );
/**
* set options * @param {Object} opts */
proto.option = function( opts ) {
utils.extend( this.options, opts );
};
/**
* get backwards compatible option value, check old name */
proto._getOption = function( option ) {
var oldOption = this.constructor.compatOptions[ option ]; return oldOption && this.options[ oldOption ] !== undefined ? this.options[ oldOption ] : this.options[ option ];
};
Outlayer.compatOptions = {
// currentName: oldName initLayout: 'isInitLayout', horizontal: 'isHorizontal', layoutInstant: 'isLayoutInstant', originLeft: 'isOriginLeft', originTop: 'isOriginTop', resize: 'isResizeBound', resizeContainer: 'isResizingContainer'
};
proto._create = function() {
// get items from children this.reloadItems(); // elements that affect layout, but are not laid out this.stamps = []; this.stamp( this.options.stamp ); // set container style utils.extend( this.element.style, this.options.containerStyle );
// bind resize method var canBindResize = this._getOption('resize'); if ( canBindResize ) { this.bindResize(); }
};
// goes through all children again and gets bricks in proper order proto.reloadItems = function() {
// collection of item elements this.items = this._itemize( this.element.children );
};
/**
* turn elements into Outlayer.Items to be used in layout * @param {Array or NodeList or HTMLElement} elems * @returns {Array} items - collection of new Outlayer Items */
proto._itemize = function( elems ) {
var itemElems = this._filterFindItemElements( elems ); var Item = this.constructor.Item;
// create new Outlayer Items for collection var items = []; for ( var i=0; i < itemElems.length; i++ ) { var elem = itemElems[i]; var item = new Item( elem, this ); items.push( item ); }
return items;
};
/**
* get item elements to be used in layout * @param {Array or NodeList or HTMLElement} elems * @returns {Array} items - item elements */
proto._filterFindItemElements = function( elems ) {
return utils.filterFindElements( elems, this.options.itemSelector );
};
/**
* getter method for getting item elements * @returns {Array} elems - collection of item elements */
proto.getItemElements = function() {
return this.items.map( function( item ) { return item.element; });
};
// ----- init & layout ----- //
/**
* lays out all items */
proto.layout = function() {
this._resetLayout(); this._manageStamps();
// don't animate first layout var layoutInstant = this._getOption('layoutInstant'); var isInstant = layoutInstant !== undefined ? layoutInstant : !this._isLayoutInited; this.layoutItems( this.items, isInstant );
// flag for initalized this._isLayoutInited = true;
};
// _init is alias for layout proto._init = proto.layout;
/**
* logic before any new layout */
proto._resetLayout = function() {
this.getSize();
};
proto.getSize = function() {
this.size = getSize( this.element );
};
/**
* get measurement from option, for columnWidth, rowHeight, gutter * if option is String -> get element from selector string, & get size of element * if option is Element -> get size of element * else use option as a number * * @param {String} measurement * @param {String} size - width or height * @private */
proto._getMeasurement = function( measurement, size ) {
var option = this.options[ measurement ]; var elem; if ( !option ) { // default to 0 this[ measurement ] = 0; } else { // use option as an element if ( typeof option == 'string' ) { elem = this.element.querySelector( option ); } else if ( option instanceof HTMLElement ) { elem = option; } // use size of element, if element this[ measurement ] = elem ? getSize( elem )[ size ] : option; }
};
/**
* layout a collection of item elements * @api public */
proto.layoutItems = function( items, isInstant ) {
items = this._getItemsForLayout( items );
this._layoutItems( items, isInstant );
this._postLayout();
};
/**
* get the items to be laid out * you may want to skip over some items * @param {Array} items * @returns {Array} items */
proto._getItemsForLayout = function( items ) {
return items.filter( function( item ) { return !item.isIgnored; });
};
/**
* layout items * @param {Array} items * @param {Boolean} isInstant */
proto._layoutItems = function( items, isInstant ) {
this._emitCompleteOnItems( 'layout', items );
if ( !items || !items.length ) { // no items, emit event with empty array return; }
var queue = [];
items.forEach( function( item ) { // get x/y object from method var position = this._getItemLayoutPosition( item ); // enqueue position.item = item; position.isInstant = isInstant || item.isLayoutInstant; queue.push( position ); }, this );
this._processLayoutQueue( queue );
};
/**
* get item layout position * @param {Outlayer.Item} item * @returns {Object} x and y position */
proto._getItemLayoutPosition = function( /* item */ ) {
return { x: 0, y: 0 };
};
/**
* iterate over array and position each item * Reason being - separating this logic prevents 'layout invalidation' * thx @paul_irish * @param {Array} queue */
proto._processLayoutQueue = function( queue ) {
this.updateStagger(); queue.forEach( function( obj, i ) { this._positionItem( obj.item, obj.x, obj.y, obj.isInstant, i ); }, this );
};
// set stagger from option in milliseconds number proto.updateStagger = function() {
var stagger = this.options.stagger; if ( stagger === null || stagger === undefined ) { this.stagger = 0; return; } this.stagger = getMilliseconds( stagger ); return this.stagger;
};
/**
* Sets position of item in DOM * @param {Outlayer.Item} item * @param {Number} x - horizontal position * @param {Number} y - vertical position * @param {Boolean} isInstant - disables transitions */
proto._positionItem = function( item, x, y, isInstant, i ) {
if ( isInstant ) { // if not transition, just set CSS item.goTo( x, y ); } else { item.stagger( i * this.stagger ); item.moveTo( x, y ); }
};
/**
* Any logic you want to do after each layout, * i.e. size the container */
proto._postLayout = function() {
this.resizeContainer();
};
proto.resizeContainer = function() {
var isResizingContainer = this._getOption('resizeContainer'); if ( !isResizingContainer ) { return; } var size = this._getContainerSize(); if ( size ) { this._setContainerMeasure( size.width, true ); this._setContainerMeasure( size.height, false ); }
};
/**
* Sets width or height of container if returned * @returns {Object} size * @param {Number} width * @param {Number} height */
proto._getContainerSize = noop;
/**
* @param {Number} measure - size of width or height * @param {Boolean} isWidth */
proto._setContainerMeasure = function( measure, isWidth ) {
if ( measure === undefined ) { return; }
var elemSize = this.size; // add padding and border width if border box if ( elemSize.isBorderBox ) { measure += isWidth ? elemSize.paddingLeft + elemSize.paddingRight + elemSize.borderLeftWidth + elemSize.borderRightWidth : elemSize.paddingBottom + elemSize.paddingTop + elemSize.borderTopWidth + elemSize.borderBottomWidth; }
measure = Math.max( measure, 0 ); this.element.style[ isWidth ? 'width' : 'height' ] = measure + 'px';
};
/**
* emit eventComplete on a collection of items events * @param {String} eventName * @param {Array} items - Outlayer.Items */
proto._emitCompleteOnItems = function( eventName, items ) {
var _this = this; function onComplete() { _this.dispatchEvent( eventName + 'Complete', null, [ items ] ); }
var count = items.length; if ( !items || !count ) { onComplete(); return; }
var doneCount = 0; function tick() { doneCount++; if ( doneCount == count ) { onComplete(); } }
// bind callback items.forEach( function( item ) { item.once( eventName, tick ); });
};
/**
* emits events via EvEmitter and jQuery events * @param {String} type - name of event * @param {Event} event - original event * @param {Array} args - extra arguments */
proto.dispatchEvent = function( type, event, args ) {
// add original event to arguments var emitArgs = event ? [ event ].concat( args ) : args; this.emitEvent( type, emitArgs );
if ( jQuery ) { // set this.$element this.$element = this.$element || jQuery( this.element ); if ( event ) { // create jQuery event var $event = jQuery.Event( event ); $event.type = type; this.$element.trigger( $event, args ); } else { // just trigger with type if no event available this.$element.trigger( type, args ); } }
};
// -------------------------- ignore & stamps -------------------------- //
/**
* keep item in collection, but do not lay it out * ignored items do not get skipped in layout * @param {Element} elem */
proto.ignore = function( elem ) {
var item = this.getItem( elem ); if ( item ) { item.isIgnored = true; }
};
/**
* return item to layout collection * @param {Element} elem */
proto.unignore = function( elem ) {
var item = this.getItem( elem ); if ( item ) { delete item.isIgnored; }
};
/**
* adds elements to stamps * @param {NodeList, Array, Element, or String} elems */
proto.stamp = function( elems ) {
elems = this._find( elems ); if ( !elems ) { return; }
this.stamps = this.stamps.concat( elems ); // ignore elems.forEach( this.ignore, this );
};
/**
* removes elements to stamps * @param {NodeList, Array, or Element} elems */
proto.unstamp = function( elems ) {
elems = this._find( elems ); if ( !elems ){ return; }
elems.forEach( function( elem ) { // filter out removed stamp elements utils.removeFrom( this.stamps, elem ); this.unignore( elem ); }, this );
};
/**
* finds child elements * @param {NodeList, Array, Element, or String} elems * @returns {Array} elems */
proto._find = function( elems ) {
if ( !elems ) { return; } // if string, use argument as selector string if ( typeof elems == 'string' ) { elems = this.element.querySelectorAll( elems ); } elems = utils.makeArray( elems ); return elems;
};
proto._manageStamps = function() {
if ( !this.stamps || !this.stamps.length ) { return; }
this._getBoundingRect();
this.stamps.forEach( this._manageStamp, this );
};
// update boundingLeft / Top proto._getBoundingRect = function() {
// get bounding rect for container element var boundingRect = this.element.getBoundingClientRect(); var size = this.size; this._boundingRect = { left: boundingRect.left + size.paddingLeft + size.borderLeftWidth, top: boundingRect.top + size.paddingTop + size.borderTopWidth, right: boundingRect.right - ( size.paddingRight + size.borderRightWidth ), bottom: boundingRect.bottom - ( size.paddingBottom + size.borderBottomWidth ) };
};
/**
* @param {Element} stamp
- /
proto._manageStamp = noop;
/**
* get x/y position of element relative to container element * @param {Element} elem * @returns {Object} offset - has left, top, right, bottom */
proto._getElementOffset = function( elem ) {
var boundingRect = elem.getBoundingClientRect(); var thisRect = this._boundingRect; var size = getSize( elem ); var offset = { left: boundingRect.left - thisRect.left - size.marginLeft, top: boundingRect.top - thisRect.top - size.marginTop, right: thisRect.right - boundingRect.right - size.marginRight, bottom: thisRect.bottom - boundingRect.bottom - size.marginBottom }; return offset;
};
// -------------------------- resize -------------------------- //
// enable event handlers for listeners // i.e. resize -> onresize proto.handleEvent = utils.handleEvent;
/**
* Bind layout to window resizing */
proto.bindResize = function() {
window.addEventListener( 'resize', this ); this.isResizeBound = true;
};
/**
* Unbind layout to window resizing */
proto.unbindResize = function() {
window.removeEventListener( 'resize', this ); this.isResizeBound = false;
};
proto.onresize = function() {
this.resize();
};
utils.debounceMethod( Outlayer, 'onresize', 100 );
proto.resize = function() {
// don't trigger if size did not change // or if resize was unbound. See #9 if ( !this.isResizeBound || !this.needsResizeLayout() ) { return; }
this.layout();
};
/**
* check if layout is needed post layout * @returns Boolean */
proto.needsResizeLayout = function() {
var size = getSize( this.element ); // check that this.size and size are there // IE8 triggers resize on body size change, so they might not be var hasSizes = this.size && size; return hasSizes && size.innerWidth !== this.size.innerWidth;
};
// -------------------------- methods -------------------------- //
/**
* add items to Outlayer instance * @param {Array or NodeList or Element} elems * @returns {Array} items - Outlayer.Items
- /
proto.addItems = function( elems ) {
var items = this._itemize( elems ); // add items to collection if ( items.length ) { this.items = this.items.concat( items ); } return items;
};
/**
* Layout newly-appended item elements * @param {Array or NodeList or Element} elems */
proto.appended = function( elems ) {
var items = this.addItems( elems ); if ( !items.length ) { return; } // layout and reveal just the new items this.layoutItems( items, true ); this.reveal( items );
};
/**
* Layout prepended elements * @param {Array or NodeList or Element} elems */
proto.prepended = function( elems ) {
var items = this._itemize( elems ); if ( !items.length ) { return; } // add items to beginning of collection var previousItems = this.items.slice(0); this.items = items.concat( previousItems ); // start new layout this._resetLayout(); this._manageStamps(); // layout new stuff without transition this.layoutItems( items, true ); this.reveal( items ); // layout previous items this.layoutItems( previousItems );
};
/**
* reveal a collection of items * @param {Array of Outlayer.Items} items */
proto.reveal = function( items ) {
this._emitCompleteOnItems( 'reveal', items ); if ( !items || !items.length ) { return; } var stagger = this.updateStagger(); items.forEach( function( item, i ) { item.stagger( i * stagger ); item.reveal(); });
};
/**
* hide a collection of items * @param {Array of Outlayer.Items} items */
proto.hide = function( items ) {
this._emitCompleteOnItems( 'hide', items ); if ( !items || !items.length ) { return; } var stagger = this.updateStagger(); items.forEach( function( item, i ) { item.stagger( i * stagger ); item.hide(); });
};
/**
* reveal item elements * @param {Array}, {Element}, {NodeList} items */
proto.revealItemElements = function( elems ) {
var items = this.getItems( elems ); this.reveal( items );
};
/**
* hide item elements * @param {Array}, {Element}, {NodeList} items */
proto.hideItemElements = function( elems ) {
var items = this.getItems( elems ); this.hide( items );
};
/**
* get Outlayer.Item, given an Element * @param {Element} elem * @param {Function} callback * @returns {Outlayer.Item} item */
proto.getItem = function( elem ) {
// loop through items to get the one that matches for ( var i=0; i < this.items.length; i++ ) { var item = this.items[i]; if ( item.element == elem ) { // return item return item; } }
};
/**
* get collection of Outlayer.Items, given Elements * @param {Array} elems * @returns {Array} items - Outlayer.Items */
proto.getItems = function( elems ) {
elems = utils.makeArray( elems ); var items = []; elems.forEach( function( elem ) { var item = this.getItem( elem ); if ( item ) { items.push( item ); } }, this );
return items;
};
/**
* remove element(s) from instance and DOM * @param {Array or NodeList or Element} elems */
proto.remove = function( elems ) {
var removeItems = this.getItems( elems );
this._emitCompleteOnItems( 'remove', removeItems );
// bail if no items to remove if ( !removeItems || !removeItems.length ) { return; }
removeItems.forEach( function( item ) { item.remove(); // remove item from collection utils.removeFrom( this.items, item ); }, this );
};
// ----- destroy ----- //
// remove and disable Outlayer instance proto.destroy = function() {
// clean up dynamic styles var style = this.element.style; style.height = ; style.position = ; style.width = ; // destroy items this.items.forEach( function( item ) { item.destroy(); });
this.unbindResize();
var id = this.element.outlayerGUID; delete instances[ id ]; // remove reference to instance by id delete this.element.outlayerGUID; // remove data for jQuery if ( jQuery ) { jQuery.removeData( this.element, this.constructor.namespace ); }
};
// -------------------------- data -------------------------- //
/**
* get Outlayer instance from element * @param {Element} elem * @returns {Outlayer} */
Outlayer.data = function( elem ) {
elem = utils.getQueryElement( elem ); var id = elem && elem.outlayerGUID; return id && instances[ id ];
};
// -------------------------- create Outlayer class -------------------------- //
/**
* create a layout class * @param {String} namespace */
Outlayer.create = function( namespace, options ) {
// sub-class Outlayer var Layout = subclass( Outlayer ); // apply new options and compatOptions Layout.defaults = utils.extend( {}, Outlayer.defaults ); utils.extend( Layout.defaults, options ); Layout.compatOptions = utils.extend( {}, Outlayer.compatOptions );
Layout.namespace = namespace;
Layout.data = Outlayer.data;
// sub-class Item Layout.Item = subclass( Item );
// -------------------------- declarative -------------------------- //
utils.htmlInit( Layout, namespace );
// -------------------------- jQuery bridge -------------------------- //
// make into jQuery plugin if ( jQuery && jQuery.bridget ) { jQuery.bridget( namespace, Layout ); }
return Layout;
};
function subclass( Parent ) {
function SubClass() { Parent.apply( this, arguments ); }
SubClass.prototype = Object.create( Parent.prototype ); SubClass.prototype.constructor = SubClass;
return SubClass;
}
// ----- helpers ----- //
// how many milliseconds are in each unit var msUnits = {
ms: 1, s: 1000
};
// munge time-like parameter into millisecond number // '0.4s' -> 40 function getMilliseconds( time ) {
if ( typeof time == 'number' ) { return time; } var matches = time.match( /(^\d*\.?\d*)(\w*)/ ); var num = matches && matches[1]; var unit = matches && matches[2]; if ( !num.length ) { return 0; } num = parseFloat( num ); var mult = msUnits[ unit ] || 1; return num * mult;
}
// ----- fin ----- //
// back in global Outlayer.Item = Item;
return Outlayer;
}));
/*!
* Masonry v4.2.0 * Cascading grid layout library * http://masonry.desandro.com * MIT License * by David DeSandro */
( function( window, factory ) {
// universal module definition /* jshint strict: false */ /*globals define, module, require */ if ( typeof define == 'function' && define.amd ) { // AMD define( [ 'outlayer/outlayer', 'get-size/get-size' ], factory ); } else if ( typeof module == 'object' && module.exports ) { // CommonJS module.exports = factory( require('outlayer'), require('get-size') ); } else { // browser global window.Masonry = factory( window.Outlayer, window.getSize ); }
}( window, function factory( Outlayer, getSize ) {
// -------------------------- masonryDefinition -------------------------- //
// create an Outlayer layout class var Masonry = Outlayer.create('masonry'); // isFitWidth -> fitWidth Masonry.compatOptions.fitWidth = 'isFitWidth';
var proto = Masonry.prototype;
proto._resetLayout = function() { this.getSize(); this._getMeasurement( 'columnWidth', 'outerWidth' ); this._getMeasurement( 'gutter', 'outerWidth' ); this.measureColumns();
// reset column Y this.colYs = []; for ( var i=0; i < this.cols; i++ ) { this.colYs.push( 0 ); }
this.maxY = 0; this.horizontalColIndex = 0; };
proto.measureColumns = function() { this.getContainerWidth(); // if columnWidth is 0, default to outerWidth of first item if ( !this.columnWidth ) { var firstItem = this.items[0]; var firstItemElem = firstItem && firstItem.element; // columnWidth fall back to item of first element this.columnWidth = firstItemElem && getSize( firstItemElem ).outerWidth || // if first elem has no width, default to size of container this.containerWidth; }
var columnWidth = this.columnWidth += this.gutter;
// calculate columns var containerWidth = this.containerWidth + this.gutter; var cols = containerWidth / columnWidth; // fix rounding errors, typically with gutters var excess = columnWidth - containerWidth % columnWidth; // if overshoot is less than a pixel, round up, otherwise floor it var mathMethod = excess && excess < 1 ? 'round' : 'floor'; cols = Math[ mathMethod ]( cols ); this.cols = Math.max( cols, 1 ); };
proto.getContainerWidth = function() { // container is parent if fit width var isFitWidth = this._getOption('fitWidth'); var container = isFitWidth ? this.element.parentNode : this.element; // check that this.size and size are there // IE8 triggers resize on body size change, so they might not be var size = getSize( container ); this.containerWidth = size && size.innerWidth; };
proto._getItemLayoutPosition = function( item ) { item.getSize(); // how many columns does this brick span var remainder = item.size.outerWidth % this.columnWidth; var mathMethod = remainder && remainder < 1 ? 'round' : 'ceil'; // round if off by 1 pixel, otherwise use ceil var colSpan = Math[ mathMethod ]( item.size.outerWidth / this.columnWidth ); colSpan = Math.min( colSpan, this.cols ); // use horizontal or top column position var colPosMethod = this.options.horizontalOrder ? '_getHorizontalColPosition' : '_getTopColPosition'; var colPosition = this[ colPosMethod ]( colSpan, item ); // position the brick var position = { x: this.columnWidth * colPosition.col, y: colPosition.y }; // apply setHeight to necessary columns var setHeight = colPosition.y + item.size.outerHeight; var setMax = colSpan + colPosition.col; for ( var i = colPosition.col; i < setMax; i++ ) { this.colYs[i] = setHeight; }
return position; };
proto._getTopColPosition = function( colSpan ) { var colGroup = this._getTopColGroup( colSpan ); // get the minimum Y value from the columns var minimumY = Math.min.apply( Math, colGroup );
return { col: colGroup.indexOf( minimumY ), y: minimumY, }; };
/** * @param {Number} colSpan - number of columns the element spans * @returns {Array} colGroup */ proto._getTopColGroup = function( colSpan ) { if ( colSpan < 2 ) { // if brick spans only one column, use all the column Ys return this.colYs; }
var colGroup = []; // how many different places could this brick fit horizontally var groupCount = this.cols + 1 - colSpan; // for each group potential horizontal position for ( var i = 0; i < groupCount; i++ ) { colGroup[i] = this._getColGroupY( i, colSpan ); } return colGroup; };
proto._getColGroupY = function( col, colSpan ) { if ( colSpan < 2 ) { return this.colYs[ col ]; } // make an array of colY values for that one group var groupColYs = this.colYs.slice( col, col + colSpan ); // and get the max value of the array return Math.max.apply( Math, groupColYs ); };
// get column position based on horizontal index. #873 proto._getHorizontalColPosition = function( colSpan, item ) { var col = this.horizontalColIndex % this.cols; var isOver = colSpan > 1 && col + colSpan > this.cols; // shift to next row if item can't fit on current row col = isOver ? 0 : col; // don't let zero-size items take up space var hasSize = item.size.outerWidth && item.size.outerHeight; this.horizontalColIndex = hasSize ? col + colSpan : this.horizontalColIndex;
return { col: col, y: this._getColGroupY( col, colSpan ), }; };
proto._manageStamp = function( stamp ) { var stampSize = getSize( stamp ); var offset = this._getElementOffset( stamp ); // get the columns that this stamp affects var isOriginLeft = this._getOption('originLeft'); var firstX = isOriginLeft ? offset.left : offset.right; var lastX = firstX + stampSize.outerWidth; var firstCol = Math.floor( firstX / this.columnWidth ); firstCol = Math.max( 0, firstCol ); var lastCol = Math.floor( lastX / this.columnWidth ); // lastCol should not go over if multiple of columnWidth #425 lastCol -= lastX % this.columnWidth ? 0 : 1; lastCol = Math.min( this.cols - 1, lastCol ); // set colYs to bottom of the stamp
var isOriginTop = this._getOption('originTop'); var stampMaxY = ( isOriginTop ? offset.top : offset.bottom ) + stampSize.outerHeight; for ( var i = firstCol; i <= lastCol; i++ ) { this.colYs[i] = Math.max( stampMaxY, this.colYs[i] ); } };
proto._getContainerSize = function() { this.maxY = Math.max.apply( Math, this.colYs ); var size = { height: this.maxY };
if ( this._getOption('fitWidth') ) { size.width = this._getContainerFitWidth(); }
return size; };
proto._getContainerFitWidth = function() { var unusedCols = 0; // count unused columns var i = this.cols; while ( --i ) { if ( this.colYs[i] !== 0 ) { break; } unusedCols++; } // fit container to columns that have been used return ( this.cols - unusedCols ) * this.columnWidth - this.gutter; };
proto.needsResizeLayout = function() { var previousWidth = this.containerWidth; this.getContainerWidth(); return previousWidth != this.containerWidth; };
return Masonry;
}));