Morris Jobke
10 years ago
committed by
Thomas Müller
parent
fd829cb0b5
commit
e49b9022a1
@ -1 +1 @@ |
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Subproject commit 8e3d65c9d1e21c04ce62db9d5531764d91b76f94 |
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Subproject commit b81d132702a2f7983919b3465e02ba365fd7b6cb |
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@ -0,0 +1,785 @@ |
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/*! Snap.js v2.0.0-rc1 */ |
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(function(win, doc) { |
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|
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'use strict'; |
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|
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// Our export
|
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var Namespace = 'Snap'; |
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|
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// Our main toolbelt
|
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var utils = { |
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|
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/** |
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* Deeply extends two objects |
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* @param {Object} destination The destination object |
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* @param {Object} source The custom options to extend destination by |
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* @return {Object} The desination object |
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*/ |
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extend: function(destination, source) { |
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var property; |
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for (property in source) { |
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if (source[property] && source[property].constructor && source[property].constructor === Object) { |
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destination[property] = destination[property] || {}; |
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utils.extend(destination[property], source[property]); |
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} else { |
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destination[property] = source[property]; |
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} |
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} |
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return destination; |
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} |
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}; |
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|
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/** |
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* Our Snap global that initializes our instance |
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* @param {Object} opts The custom Snap.js options |
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*/ |
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var Core = function( opts ) { |
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|
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var self = this; |
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|
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/** |
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* Our default settings for a Snap instance |
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* @type {Object} |
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*/ |
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var settings = self.settings = { |
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element: null, |
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dragger: null, |
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disable: 'none', |
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addBodyClasses: true, |
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hyperextensible: true, |
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resistance: 0.5, |
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flickThreshold: 50, |
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transitionSpeed: 0.3, |
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easing: 'ease', |
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maxPosition: 266, |
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minPosition: -266, |
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tapToClose: true, |
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touchToDrag: true, |
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clickToDrag: true, |
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slideIntent: 40, // degrees
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minDragDistance: 5 |
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}; |
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|
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/** |
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* Stores internally global data |
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* @type {Object} |
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*/ |
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var cache = self.cache = { |
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isDragging: false, |
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simpleStates: { |
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opening: null, |
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towards: null, |
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hyperExtending: null, |
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halfway: null, |
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flick: null, |
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translation: { |
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absolute: 0, |
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relative: 0, |
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sinceDirectionChange: 0, |
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percentage: 0 |
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} |
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} |
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}; |
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|
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var eventList = self.eventList = {}; |
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|
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utils.extend(utils, { |
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|
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/** |
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* Determines if we are interacting with a touch device |
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* @type {Boolean} |
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*/ |
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hasTouch: ('ontouchstart' in doc.documentElement || win.navigator.msPointerEnabled), |
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|
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/** |
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* Returns the appropriate event type based on whether we are a touch device or not |
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* @param {String} action The "action" event you're looking for: up, down, move, out |
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* @return {String} The browsers supported event name |
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*/ |
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eventType: function(action) { |
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var eventTypes = { |
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down: (utils.hasTouch ? 'touchstart' : settings.clickToDrag ? 'mousedown' : ''), |
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move: (utils.hasTouch ? 'touchmove' : settings.clickToDrag ? 'mousemove' : ''), |
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up: (utils.hasTouch ? 'touchend' : settings.clickToDrag ? 'mouseup': ''), |
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out: (utils.hasTouch ? 'touchcancel' : settings.clickToDrag ? 'mouseout' : '') |
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}; |
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return eventTypes[action]; |
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}, |
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|
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/** |
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* Returns the correct "cursor" position on both browser and mobile |
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* @param {String} t The coordinate to retrieve, either "X" or "Y" |
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* @param {Object} e The event object being triggered |
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* @return {Number} The desired coordiante for the events interaction |
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*/ |
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page: function(t, e){ |
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return (utils.hasTouch && e.touches.length && e.touches[0]) ? e.touches[0]['page'+t] : e['page'+t]; |
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}, |
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klass: { |
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|
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/** |
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* Checks if an element has a class name |
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* @param {Object} el The element to check |
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* @param {String} name The class name to search for |
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* @return {Boolean} Returns true if the class exists |
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*/ |
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has: function(el, name){ |
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return (el.className).indexOf(name) !== -1; |
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}, |
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|
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/** |
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* Adds a class name to an element |
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* @param {Object} el The element to add to |
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* @param {String} name The class name to add |
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*/ |
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add: function(el, name){ |
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if(!utils.klass.has(el, name) && settings.addBodyClasses){ |
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el.className += " "+name; |
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} |
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}, |
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|
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/** |
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* Removes a class name |
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* @param {Object} el The element to remove from |
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* @param {String} name The class name to remove |
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*/ |
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remove: function(el, name){ |
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if(utils.klass.has(el, name) && settings.addBodyClasses){ |
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el.className = (el.className).replace(name, "").replace(/^\s+|\s+$/g, ''); |
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} |
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} |
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}, |
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|
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/** |
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* Dispatch a custom Snap.js event |
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* @param {String} type The event name |
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*/ |
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dispatchEvent: function(type) { |
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if( typeof eventList[type] === 'function') { |
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return eventList[type].apply(); |
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} |
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}, |
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|
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/** |
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* Determines the browsers vendor prefix for CSS3 |
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* @return {String} The browsers vendor prefix |
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*/ |
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vendor: function(){ |
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var tmp = doc.createElement("div"), |
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prefixes = 'webkit Moz O ms'.split(' '), |
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i; |
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for (i in prefixes) { |
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if (typeof tmp.style[prefixes[i] + 'Transition'] !== 'undefined') { |
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return prefixes[i]; |
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} |
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} |
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}, |
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|
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/** |
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* Determines the browsers vendor prefix for transition callback events |
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* @return {String} The event name |
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*/ |
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transitionCallback: function(){ |
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return (cache.vendor==='Moz' || cache.vendor==='ms') ? 'transitionend' : cache.vendor+'TransitionEnd'; |
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}, |
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|
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/** |
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* Determines if the users browser supports CSS3 transformations |
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* @return {[type]} [description] |
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*/ |
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canTransform: function(){ |
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return typeof settings.element.style[cache.vendor+'Transform'] !== 'undefined'; |
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}, |
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|
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/** |
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* Determines an angle between two points |
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* @param {Number} x The X coordinate |
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* @param {Number} y The Y coordinate |
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* @return {Number} The number of degrees between the two points |
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*/ |
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angleOfDrag: function(x, y) { |
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var degrees, theta; |
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// Calc Theta
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theta = Math.atan2(-(cache.startDragY - y), (cache.startDragX - x)); |
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if (theta < 0) { |
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theta += 2 * Math.PI; |
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} |
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// Calc Degrees
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degrees = Math.floor(theta * (180 / Math.PI) - 180); |
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if (degrees < 0 && degrees > -180) { |
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degrees = 360 - Math.abs(degrees); |
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} |
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return Math.abs(degrees); |
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}, |
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events: { |
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/** |
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* Adds an event to an element |
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* @param {Object} element Element to add event to |
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* @param {String} eventName The event name |
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* @param {Function} func Callback function |
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*/ |
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addEvent: function addEvent(element, eventName, func) { |
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if (element.addEventListener) { |
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return element.addEventListener(eventName, func, false); |
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} else if (element.attachEvent) { |
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return element.attachEvent("on" + eventName, func); |
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} |
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}, |
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/** |
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* Removes an event to an element |
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* @param {Object} element Element to remove event from |
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* @param {String} eventName The event name |
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* @param {Function} func Callback function |
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*/ |
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removeEvent: function addEvent(element, eventName, func) { |
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if (element.addEventListener) { |
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return element.removeEventListener(eventName, func, false); |
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} else if (element.attachEvent) { |
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return element.detachEvent("on" + eventName, func); |
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} |
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}, |
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/** |
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* Prevents the default event |
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* @param {Object} e The event object |
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*/ |
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prevent: function(e) { |
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if (e.preventDefault) { |
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e.preventDefault(); |
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} else { |
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e.returnValue = false; |
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} |
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} |
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}, |
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|
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/** |
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* Searches the parent element until a specified attribute has been matched |
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* @param {Object} el The element to search from |
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* @param {String} attr The attribute to search for |
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* @return {Object|null} Returns a matched element if it exists, else, null |
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*/ |
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parentUntil: function(el, attr) { |
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var isStr = typeof attr === 'string'; |
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while (el.parentNode) { |
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if (isStr && el.getAttribute && el.getAttribute(attr)){ |
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return el; |
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} else if(!isStr && el === attr){ |
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return el; |
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} |
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el = el.parentNode; |
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} |
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return null; |
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} |
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}); |
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var action = self.action = { |
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|
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/** |
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* Handles translating the elements position |
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* @type {Object} |
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*/ |
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translate: { |
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get: { |
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|
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/** |
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* Returns the amount an element is translated |
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* @param {Number} index The index desired from the CSS3 values of translate3d |
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* @return {Number} The amount of pixels an element is translated |
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*/ |
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matrix: function(index) { |
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if( !cache.canTransform ){ |
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return parseInt(settings.element.style.left, 10); |
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} else { |
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var matrix = win.getComputedStyle(settings.element)[cache.vendor+'Transform'].match(/\((.*)\)/), |
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ieOffset = 8; |
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if (matrix) { |
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matrix = matrix[1].split(','); |
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// Internet Explorer likes to give us 16 fucking values
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if(matrix.length===16){ |
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index+=ieOffset; |
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} |
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return parseInt(matrix[index], 10); |
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} |
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return 0; |
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} |
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} |
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}, |
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/** |
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* Called when the element has finished transitioning |
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*/ |
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easeCallback: function(fn){ |
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settings.element.style[cache.vendor+'Transition'] = ''; |
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cache.translation = action.translate.get.matrix(4); |
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cache.easing = false; |
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|
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if(cache.easingTo===0){ |
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utils.klass.remove(doc.body, 'snapjs-right'); |
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utils.klass.remove(doc.body, 'snapjs-left'); |
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} |
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|
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if( cache.once ){ |
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cache.once.call(self, self.state()); |
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delete cache.once; |
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} |
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utils.dispatchEvent('animated'); |
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utils.events.removeEvent(settings.element, utils.transitionCallback(), action.translate.easeCallback); |
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}, |
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/** |
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* Animates the pane by the specified amount of pixels |
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* @param {Number} n The amount of pixels to move the pane |
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*/ |
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easeTo: function(n, cb) { |
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if( !cache.canTransform ){ |
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cache.translation = n; |
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action.translate.x(n); |
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} else { |
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cache.easing = true; |
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cache.easingTo = n; |
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settings.element.style[cache.vendor+'Transition'] = 'all ' + settings.transitionSpeed + 's ' + settings.easing; |
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cache.once = cb; |
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utils.events.addEvent(settings.element, utils.transitionCallback(), action.translate.easeCallback); |
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action.translate.x(n); |
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} |
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if(n===0){ |
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settings.element.style[cache.vendor+'Transform'] = ''; |
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} |
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}, |
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|
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/** |
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* Immediately translates the element on its X axis |
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* @param {Number} n Amount of pixels to translate |
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*/ |
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x: function(n) { |
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if( (settings.disable==='left' && n>0) || |
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(settings.disable==='right' && n<0) |
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){ return; } |
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if( !settings.hyperextensible ){ |
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if( n===settings.maxPosition || n>settings.maxPosition ){ |
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n=settings.maxPosition; |
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} else if( n===settings.minPosition || n<settings.minPosition ){ |
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n=settings.minPosition; |
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} |
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} |
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|
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n = parseInt(n, 10); |
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if(isNaN(n)){ |
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n = 0; |
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} |
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|
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if( cache.canTransform ){ |
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var theTranslate = 'translate3d(' + n + 'px, 0,0)'; |
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settings.element.style[cache.vendor+'Transform'] = theTranslate; |
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} else { |
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settings.element.style.width = (win.innerWidth || doc.documentElement.clientWidth)+'px'; |
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|
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settings.element.style.left = n+'px'; |
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settings.element.style.right = ''; |
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} |
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} |
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}, |
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/** |
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* Handles all the events that interface with dragging |
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* @type {Object} |
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*/ |
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drag: { |
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/** |
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* Begins listening for drag events on our element |
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*/ |
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listen: function() { |
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cache.translation = 0; |
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cache.easing = false; |
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utils.events.addEvent(self.settings.element, utils.eventType('down'), action.drag.startDrag); |
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utils.events.addEvent(self.settings.element, utils.eventType('move'), action.drag.dragging); |
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utils.events.addEvent(self.settings.element, utils.eventType('up'), action.drag.endDrag); |
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}, |
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/** |
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* Stops listening for drag events on our element |
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*/ |
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stopListening: function() { |
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utils.events.removeEvent(settings.element, utils.eventType('down'), action.drag.startDrag); |
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utils.events.removeEvent(settings.element, utils.eventType('move'), action.drag.dragging); |
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utils.events.removeEvent(settings.element, utils.eventType('up'), action.drag.endDrag); |
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}, |
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/** |
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* Fired immediately when the user begins to drag the content pane |
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* @param {Object} e Event object |
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*/ |
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startDrag: function(e) { |
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// No drag on ignored elements
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var target = e.target ? e.target : e.srcElement, |
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ignoreParent = utils.parentUntil(target, 'data-snap-ignore'); |
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if (ignoreParent) { |
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utils.dispatchEvent('ignore'); |
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return; |
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} |
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|
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if(settings.dragger){ |
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var dragParent = utils.parentUntil(target, settings.dragger); |
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|
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// Only use dragger if we're in a closed state
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if( !dragParent && |
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(cache.translation !== settings.minPosition && |
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cache.translation !== settings.maxPosition |
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)){ |
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return; |
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} |
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} |
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|
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utils.dispatchEvent('start'); |
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settings.element.style[cache.vendor+'Transition'] = ''; |
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cache.isDragging = true; |
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|
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cache.intentChecked = false; |
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cache.startDragX = utils.page('X', e); |
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cache.startDragY = utils.page('Y', e); |
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cache.dragWatchers = { |
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current: 0, |
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last: 0, |
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hold: 0, |
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state: '' |
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}; |
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cache.simpleStates = { |
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opening: null, |
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towards: null, |
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hyperExtending: null, |
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halfway: null, |
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flick: null, |
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translation: { |
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absolute: 0, |
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relative: 0, |
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sinceDirectionChange: 0, |
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percentage: 0 |
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} |
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}; |
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}, |
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|
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/** |
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* Fired while the user is moving the content pane |
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* @param {Object} e Event object |
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*/ |
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dragging: function(e) { |
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|
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if (cache.isDragging && settings.touchToDrag) { |
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var thePageX = utils.page('X', e), |
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thePageY = utils.page('Y', e), |
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translated = cache.translation, |
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absoluteTranslation = action.translate.get.matrix(4), |
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whileDragX = thePageX - cache.startDragX, |
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openingLeft = absoluteTranslation > 0, |
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translateTo = whileDragX, |
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diff; |
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|
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// Shown no intent already
|
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if((cache.intentChecked && !cache.hasIntent)){ |
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return; |
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} |
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|
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if(settings.addBodyClasses){ |
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if((absoluteTranslation)>0){ |
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utils.klass.add(doc.body, 'snapjs-left'); |
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utils.klass.remove(doc.body, 'snapjs-right'); |
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} else if((absoluteTranslation)<0){ |
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utils.klass.add(doc.body, 'snapjs-right'); |
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utils.klass.remove(doc.body, 'snapjs-left'); |
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} |
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} |
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|
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if (cache.hasIntent === false || cache.hasIntent === null) { |
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|
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var deg = utils.angleOfDrag(thePageX, thePageY), |
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inRightRange = (deg >= 0 && deg <= settings.slideIntent) || (deg <= 360 && deg > (360 - settings.slideIntent)), |
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inLeftRange = (deg >= 180 && deg <= (180 + settings.slideIntent)) || (deg <= 180 && deg >= (180 - settings.slideIntent)); |
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if (!inLeftRange && !inRightRange) { |
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cache.hasIntent = false; |
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} else { |
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cache.hasIntent = true; |
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} |
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cache.intentChecked = true; |
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} |
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|
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if ( |
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(settings.minDragDistance>=Math.abs(thePageX-cache.startDragX)) || // Has user met minimum drag distance?
|
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(cache.hasIntent === false) |
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) { |
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return; |
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} |
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|
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utils.events.prevent(e); |
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utils.dispatchEvent('drag'); |
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|
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cache.dragWatchers.current = thePageX; |
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|
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// Determine which direction we are going
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if (cache.dragWatchers.last > thePageX) { |
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if (cache.dragWatchers.state !== 'left') { |
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cache.dragWatchers.state = 'left'; |
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cache.dragWatchers.hold = thePageX; |
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} |
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cache.dragWatchers.last = thePageX; |
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} else if (cache.dragWatchers.last < thePageX) { |
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if (cache.dragWatchers.state !== 'right') { |
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cache.dragWatchers.state = 'right'; |
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cache.dragWatchers.hold = thePageX; |
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} |
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cache.dragWatchers.last = thePageX; |
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} |
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if (openingLeft) { |
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// Pulling too far to the right
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if (settings.maxPosition < absoluteTranslation) { |
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diff = (absoluteTranslation - settings.maxPosition) * settings.resistance; |
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translateTo = whileDragX - diff; |
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} |
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cache.simpleStates = { |
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opening: 'left', |
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towards: cache.dragWatchers.state, |
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hyperExtending: settings.maxPosition < absoluteTranslation, |
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halfway: absoluteTranslation > (settings.maxPosition / 2), |
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flick: Math.abs(cache.dragWatchers.current - cache.dragWatchers.hold) > settings.flickThreshold, |
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translation: { |
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absolute: absoluteTranslation, |
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relative: whileDragX, |
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sinceDirectionChange: (cache.dragWatchers.current - cache.dragWatchers.hold), |
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percentage: (absoluteTranslation/settings.maxPosition)*100 |
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} |
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}; |
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} else { |
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// Pulling too far to the left
|
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if (settings.minPosition > absoluteTranslation) { |
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diff = (absoluteTranslation - settings.minPosition) * settings.resistance; |
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translateTo = whileDragX - diff; |
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} |
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cache.simpleStates = { |
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opening: 'right', |
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towards: cache.dragWatchers.state, |
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hyperExtending: settings.minPosition > absoluteTranslation, |
||||
halfway: absoluteTranslation < (settings.minPosition / 2), |
||||
flick: Math.abs(cache.dragWatchers.current - cache.dragWatchers.hold) > settings.flickThreshold, |
||||
translation: { |
||||
absolute: absoluteTranslation, |
||||
relative: whileDragX, |
||||
sinceDirectionChange: (cache.dragWatchers.current - cache.dragWatchers.hold), |
||||
percentage: (absoluteTranslation/settings.minPosition)*100 |
||||
} |
||||
}; |
||||
} |
||||
action.translate.x(translateTo + translated); |
||||
} |
||||
}, |
||||
|
||||
/** |
||||
* Fired when the user releases the content pane |
||||
* @param {Object} e Event object |
||||
*/ |
||||
endDrag: function(e) { |
||||
if (cache.isDragging) { |
||||
utils.dispatchEvent('end'); |
||||
var translated = action.translate.get.matrix(4); |
||||
|
||||
// Tap Close
|
||||
if (cache.dragWatchers.current === 0 && translated !== 0 && settings.tapToClose) { |
||||
utils.dispatchEvent('close'); |
||||
utils.events.prevent(e); |
||||
action.translate.easeTo(0); |
||||
cache.isDragging = false; |
||||
cache.startDragX = 0; |
||||
return; |
||||
} |
||||
|
||||
// Revealing Left
|
||||
if (cache.simpleStates.opening === 'left') { |
||||
// Halfway, Flicking, or Too Far Out
|
||||
if ((cache.simpleStates.halfway || cache.simpleStates.hyperExtending || cache.simpleStates.flick)) { |
||||
if (cache.simpleStates.flick && cache.simpleStates.towards === 'left') { // Flicking Closed
|
||||
action.translate.easeTo(0); |
||||
} else if ( |
||||
(cache.simpleStates.flick && cache.simpleStates.towards === 'right') || // Flicking Open OR
|
||||
(cache.simpleStates.halfway || cache.simpleStates.hyperExtending) // At least halfway open OR hyperextending
|
||||
) { |
||||
action.translate.easeTo(settings.maxPosition); // Open Left
|
||||
} |
||||
} else { |
||||
action.translate.easeTo(0); // Close Left
|
||||
} |
||||
// Revealing Right
|
||||
} else if (cache.simpleStates.opening === 'right') { |
||||
// Halfway, Flicking, or Too Far Out
|
||||
if ((cache.simpleStates.halfway || cache.simpleStates.hyperExtending || cache.simpleStates.flick)) { |
||||
if (cache.simpleStates.flick && cache.simpleStates.towards === 'right') { // Flicking Closed
|
||||
action.translate.easeTo(0); |
||||
} else if ( |
||||
(cache.simpleStates.flick && cache.simpleStates.towards === 'left') || // Flicking Open OR
|
||||
(cache.simpleStates.halfway || cache.simpleStates.hyperExtending) // At least halfway open OR hyperextending
|
||||
) { |
||||
action.translate.easeTo(settings.minPosition); // Open Right
|
||||
} |
||||
} else { |
||||
action.translate.easeTo(0); // Close Right
|
||||
} |
||||
} |
||||
cache.isDragging = false; |
||||
cache.startDragX = utils.page('X', e); |
||||
} |
||||
} |
||||
} |
||||
}; |
||||
|
||||
|
||||
// Initialize
|
||||
if (opts.element) { |
||||
utils.extend(settings, opts); |
||||
cache.vendor = utils.vendor(); |
||||
cache.canTransform = utils.canTransform(); |
||||
action.drag.listen(); |
||||
} |
||||
}; |
||||
|
||||
|
||||
utils.extend(Core.prototype, { |
||||
|
||||
/** |
||||
* Opens the specified side menu |
||||
* @param {String} side Must be "left" or "right" |
||||
*/ |
||||
open: function(side, cb) { |
||||
utils.dispatchEvent('open'); |
||||
utils.klass.remove(doc.body, 'snapjs-expand-left'); |
||||
utils.klass.remove(doc.body, 'snapjs-expand-right'); |
||||
|
||||
if (side === 'left') { |
||||
this.cache.simpleStates.opening = 'left'; |
||||
this.cache.simpleStates.towards = 'right'; |
||||
utils.klass.add(doc.body, 'snapjs-left'); |
||||
utils.klass.remove(doc.body, 'snapjs-right'); |
||||
this.action.translate.easeTo(this.settings.maxPosition, cb); |
||||
} else if (side === 'right') { |
||||
this.cache.simpleStates.opening = 'right'; |
||||
this.cache.simpleStates.towards = 'left'; |
||||
utils.klass.remove(doc.body, 'snapjs-left'); |
||||
utils.klass.add(doc.body, 'snapjs-right'); |
||||
this.action.translate.easeTo(this.settings.minPosition, cb); |
||||
} |
||||
}, |
||||
|
||||
/** |
||||
* Closes the pane |
||||
*/ |
||||
close: function(cb) { |
||||
utils.dispatchEvent('close'); |
||||
this.action.translate.easeTo(0, cb); |
||||
}, |
||||
|
||||
/** |
||||
* Hides the content pane completely allowing for full menu visibility |
||||
* @param {String} side Must be "left" or "right" |
||||
*/ |
||||
expand: function(side){ |
||||
var to = win.innerWidth || doc.documentElement.clientWidth; |
||||
|
||||
if(side==='left'){ |
||||
utils.dispatchEvent('expandLeft'); |
||||
utils.klass.add(doc.body, 'snapjs-expand-left'); |
||||
utils.klass.remove(doc.body, 'snapjs-expand-right'); |
||||
} else { |
||||
utils.dispatchEvent('expandRight'); |
||||
utils.klass.add(doc.body, 'snapjs-expand-right'); |
||||
utils.klass.remove(doc.body, 'snapjs-expand-left'); |
||||
to *= -1; |
||||
} |
||||
this.action.translate.easeTo(to); |
||||
}, |
||||
|
||||
/** |
||||
* Listen in to custom Snap events |
||||
* @param {String} evt The snap event name |
||||
* @param {Function} fn Callback function |
||||
* @return {Object} Snap instance |
||||
*/ |
||||
on: function(evt, fn) { |
||||
this.eventList[evt] = fn; |
||||
return this; |
||||
}, |
||||
|
||||
/** |
||||
* Stops listening to custom Snap events |
||||
* @param {String} evt The snap event name |
||||
*/ |
||||
off: function(evt) { |
||||
if (this.eventList[evt]) { |
||||
this.eventList[evt] = false; |
||||
} |
||||
}, |
||||
|
||||
/** |
||||
* Enables Snap.js events |
||||
*/ |
||||
enable: function() { |
||||
utils.dispatchEvent('enable'); |
||||
this.action.drag.listen(); |
||||
}, |
||||
|
||||
/** |
||||
* Disables Snap.js events |
||||
*/ |
||||
disable: function() { |
||||
utils.dispatchEvent('disable'); |
||||
this.action.drag.stopListening(); |
||||
}, |
||||
|
||||
/** |
||||
* Updates the instances settings |
||||
* @param {Object} opts The Snap options to set |
||||
*/ |
||||
settings: function(opts){ |
||||
utils.extend(this.settings, opts); |
||||
}, |
||||
|
||||
/** |
||||
* Returns information about the state of the content pane |
||||
* @return {Object} Information regarding the state of the pane |
||||
*/ |
||||
state: function() { |
||||
var state, |
||||
fromLeft = this.action.translate.get.matrix(4); |
||||
if (fromLeft === this.settings.maxPosition) { |
||||
state = 'left'; |
||||
} else if (fromLeft === this.settings.minPosition) { |
||||
state = 'right'; |
||||
} else { |
||||
state = 'closed'; |
||||
} |
||||
return { |
||||
state: state, |
||||
info: this.cache.simpleStates |
||||
}; |
||||
} |
||||
}); |
||||
|
||||
// Assign to the global namespace
|
||||
this[Namespace] = Core; |
||||
|
||||
}).call(this, window, document); |
||||
Loading…
Reference in new issue