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📁 ..	-	2026-03-19 10:58
📄 .bower.json { "name": "outlayer", "description": "the brains and guts of a layout library", "main": "outlayer.js", "dependencies": { "ev-emitter": "^1.0.0", "get-size": "^2.0.2", "fizzy-ui-utils": "^2.0.0" }, "devDependencies": { "jquery-bridget": "2.x", "jquery": ">=1.4.3 <4", "qunit": "^1.17.0" }, "ignore": [ "test/", "docs/", "sandbox/", ".", "notes.md", "/.", "node_modules", "bower_components", "test", "tests", "package.json" ], "homepage": "https://github.com/metafizzy/outlayer", "authors": [ "Metafizzy" ], "moduleType": [ "amd", "globals", "node" ], "keywords": [ "layout", "masonry", "isotope" ], "license": "MIT", "version": "2.1.0", "_release": "2.1.0", "_resolution": { "type": "version", "tag": "v2.1.0", "commit": "529c61b537638d7bf92323dbfc104b38b928ffe1" }, "_source": "https://github.com/metafizzy/outlayer.git", "_target": "^2.1.0", "_originalSource": "outlayer" }	1.01 KB	2026-03-19 10:54
📄 README.md # Outlayer _Brains and guts of a layout library_ Outlayer is a base layout class for layout libraries like [Isotope](http://isotope.metafizzy.co), [Packery](http://packery.metafizzy.co), and [Masonry](http://masonry.desandro.com) Outlayer layouts work with a container element and children item elements. ``` html <div class="grid"> <div class="item"></div> <div class="item"></div> <div class="item"></div> ... </div> ``` ## Install Install with [Bower](http://bower.io): `bower install outlayer` [Install with npm](http://npmjs.org/package/outlayer): `npm install outlayer` ## Outlayer.create() Create a layout class with `Outlayer.create()` ``` js var Layout = Outlayer.create( namespace ); // for example var Masonry = Outlayer.create('masonry'); ``` + `namespace` _{String}_ should be camelCased + returns `LayoutClass` _{Function}_ Create a new layout class. `namespace` is used for jQuery plugin, and for declarative initialization. The `Layout` inherits from [`Outlayer.prototype`](docs/outlayer.md). ``` var elem = document.querySelector('.selector'); var msnry = new Masonry( elem, { // set options... columnWidth: 200 }); ``` ## Item Layouts work with Items, accessible as `Layout.Item`. See [Item API](docs/item.md). ## Declarative An Outlayer layout class can be initialized via HTML, by setting an attribute of `data-namespace` on the element. Options are set in JSON. For example: ``` html <!-- var Masonry = Outlayer.create('masonry') --> <div class="grid" data-masonry='{ "itemSelector": ".item", "columnWidth": 200 }'> ... </div> ``` The declarative attributes and class will be dashed. i.e. `Outlayer.create('myNiceLayout')` will use `data-my-nice-layout` as the attribute. ## .data() Get a layout instance from an element. ``` var myMasonry = Masonry.data( document.querySelector('.grid') ); ``` ## jQuery plugin The layout class also works as jQuery plugin. ``` js // create Masonry layout class, namespace will be the jQuery method var Masonry = Outlayer.create('masonry'); // rock some jQuery $( function() { // .masonry() to initialize var $grid = $('.grid').masonry({ // options... }); // methods are available by passing a string as first parameter $grid.masonry( 'reveal', elems ); }); ``` ## RequireJS To use Outlayer with [RequireJS](http://requirejs.org/), you'll need to set some config. Set [baseUrl](http://requirejs.org/docs/api.html#config-baseUrl) to bower_components and set a [path config](http://requirejs.org/docs/api.html#config-paths) for all your application code. ``` js requirejs.config({ baseUrl: 'bower_components', paths: { app: '../' } }); requirejs( [ 'outlayer/outlayer', 'app/my-component.js' ], function( Outlayer, myComp ) { new Outlayer( /.../ ) }); ``` Or set a path config for all Outlayer dependencies. ``` js requirejs.config({ paths: { 'ev-emitter': 'bower_components/ev-emitter', 'get-size': 'bower_components/get-size', 'matches-selector': 'bower_components/matches-selector' } }); ``` ## MIT license Outlayer is released under the [MIT license](http://desandro.mit-license.org).	3.06 KB	2026-03-19 10:54
📄 bower.json { "name": "outlayer", "description": "the brains and guts of a layout library", "main": "outlayer.js", "dependencies": { "ev-emitter": "^1.0.0", "get-size": "^2.0.2", "fizzy-ui-utils": "^2.0.0" }, "devDependencies": { "jquery-bridget": "2.x", "jquery": ">=1.4.3 <4", "qunit": "^1.17.0" }, "ignore": [ "test/", "docs/", "sandbox/", ".", "notes.md", "/.", "node_modules", "bower_components", "test", "tests", "package.json" ], "homepage": "https://github.com/metafizzy/outlayer", "authors": [ "Metafizzy" ], "moduleType": [ "amd", "globals", "node" ], "keywords": [ "layout", "masonry", "isotope" ], "license": "MIT" }	751 B	2026-03-19 10:54
📄 item.js /** * Outlayer Item / ( function( window, factory ) { // universal module definition / jshint strict: false / / globals define, module, require / if ( typeof define == 'function' && define.amd ) { // AMD - RequireJS define( [ '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; }));	14.31 KB	2026-03-19 10:54
📄 outlayer.js /! 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( [ '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; }));	21.52 KB	2026-03-19 10:54

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