o: ActiveSupport::Cache::Entry :@compressedF:@expires_in0:@created_atf1375908459.514435: @value"CÏ{I" class:EFI"ProcessedAsset;FI"logical_path;FI"$touchswipe/jquery.touchSwipe.js;TI" pathname;FI"f/Users/jmcasden/Code/MHL-vagrant/lentil/vendor/assets/javascripts/touchswipe/jquery.touchSwipe.js;TI"content_type;FI"application/javascript;FI" mtime;FI"2013-05-10T14:53:57-04:00;FI" length;FièËI" digest;F"%2e08eab9c03abe42f1855d3d7d46b1acI" source;FI"èË/* * @fileOverview TouchSwipe - jQuery Plugin * @version 1.6.0 * * @author Matt Bryson http://www.github.com/mattbryson * @see https://github.com/mattbryson/TouchSwipe-Jquery-Plugin * @see http://labs.skinkers.com/touchSwipe/ * @see http://plugins.jquery.com/project/touchSwipe * * Copyright (c) 2010 Matt Bryson (www.skinkers.com) * Dual licensed under the MIT or GPL Version 2 licenses. * * * Changelog * $Date: 2010-12-12 (Wed, 12 Dec 2010) $ * $version: 1.0.0 * $version: 1.0.1 - removed multibyte comments * * $Date: 2011-21-02 (Mon, 21 Feb 2011) $ * $version: 1.1.0 - added allowPageScroll property to allow swiping and scrolling of page * - changed handler signatures so one handler can be used for multiple events * $Date: 2011-23-02 (Wed, 23 Feb 2011) $ * $version: 1.2.0 - added click handler. This is fired if the user simply clicks and does not swipe. The event object and click target are passed to handler. * - If you use the http://code.google.com/p/jquery-ui-for-ipad-and-iphone/ plugin, you can also assign jQuery mouse events to children of a touchSwipe object. * $version: 1.2.1 - removed console log! * * $version: 1.2.2 - Fixed bug where scope was not preserved in callback methods. * * $Date: 2011-28-04 (Thurs, 28 April 2011) $ * $version: 1.2.4 - Changed licence terms to be MIT or GPL inline with jQuery. Added check for support of touch events to stop non compatible browsers erroring. * * $Date: 2011-27-09 (Tues, 27 September 2011) $ * $version: 1.2.5 - Added support for testing swipes with mouse on desktop browser (thanks to https://github.com/joelhy) * * $Date: 2012-14-05 (Mon, 14 May 2012) $ * $version: 1.2.6 - Added timeThreshold between start and end touch, so user can ignore slow swipes (thanks to Mark Chase). Default is null, all swipes are detected * * $Date: 2012-05-06 (Tues, 05 June 2012) $ * $version: 1.2.7 - Changed time threshold to have null default for backwards compatibility. Added duration param passed back in events, and refactored how time is handled. * * $Date: 2012-05-06 (Tues, 05 June 2012) $ * $version: 1.2.8 - Added the possibility to return a value like null or false in the trigger callback. In that way we can control when the touch start/move should take effect or not (simply by returning in some cases return null; or return false;) This effects the ontouchstart/ontouchmove event. * * $Date: 2012-06-06 (Wed, 06 June 2012) $ * $version: 1.3.0 - Refactored whole plugin to allow for methods to be executed, as well as exposed defaults for user override. Added 'enable', 'disable', and 'destroy' methods * * $Date: 2012-05-06 (Fri, 05 June 2012) $ * $version: 1.3.1 - Bug fixes - bind() with false as last argument is no longer supported in jQuery 1.6, also, if you just click, the duration is now returned correctly. * * $Date: 2012-29-07 (Sun, 29 July 2012) $ * $version: 1.3.2 - Added fallbackToMouseEvents option to NOT capture mouse events on non touch devices. * - Added "all" fingers value to the fingers property, so any combinatin of fingers triggers the swipe, allowing event handlers to check the finger count * * $Date: 2012-09-08 (Thurs, 9 Aug 2012) $ * $version: 1.3.3 - Code tidy prep for minified version * * $Date: 2012-04-10 (wed, 4 Oct 2012) $ * $version: 1.4.0 - Added pinch support, pinchIn and pinchOut * * $Date: 2012-11-10 (Thurs, 11 Oct 2012) $ * $version: 1.5.0 - Added excludedElements, a jquery selector that specifies child elements that do NOT trigger swipes. By default, this is one select that removes all form, input select, button and anchor elements. * * $Date: 2012-22-10 (Mon, 22 Oct 2012) $ * $version: 1.5.1 - Fixed bug with jQuery 1.8 and trailing comma in excludedElements * - Fixed bug with IE and eventPreventDefault() * $Date: 2013-01-12 (Fri, 12 Jan 2013) $ * $version: 1.6.0 - Fixed bugs with pinching, mainly when both pinch and swipe enabled, as well as adding time threshold for multifinger gestures, so releasing one finger beofre the other doesnt trigger as single finger gesture. * - made the demo site all static local HTML pages so they can be run locally by a developer * - added jsDoc comments and added documentation for the plugin * - code tidy * - added triggerOnTouchLeave property that will end the event when the user swipes off the element. */ /** * See (http://jquery.com/). * @name $ * @class * See the jQuery Library (http://jquery.com/) for full details. This just * documents the function and classes that are added to jQuery by this plug-in. */ /** * See (http://jquery.com/) * @name fn * @class * See the jQuery Library (http://jquery.com/) for full details. This just * documents the function and classes that are added to jQuery by this plug-in. * @memberOf $ */ (function ($) { + "use strict"; //Constants var LEFT = "left", RIGHT = "right", UP = "up", DOWN = "down", IN = "in", OUT = "out", NONE = "none", AUTO = "auto", SWIPE = "swipe", PINCH = "pinch", CLICK = "click", HORIZONTAL = "horizontal", VERTICAL = "vertical", ALL_FINGERS = "all", PHASE_START = "start", PHASE_MOVE = "move", PHASE_END = "end", PHASE_CANCEL = "cancel", SUPPORTS_TOUCH = 'ontouchstart' in window, PLUGIN_NS = 'TouchSwipe'; /** * The default configuration, and available options to configure touch swipe with. * You can set the default values by updating any of the properties prior to instantiation. * @name $.fn.swipe.defaults * @namespace * @property {int} [fingers=1] The number of fingers to detect in a swipe. Any swipes that do not meet this requirement will NOT trigger swipe handlers. * @property {int} [threshold=75] The number of pixels that the user must move their finger by before it is considered a swipe. * @property {int} [pinchThreshold=20] The number of pixels that the user must pinch their finger by before it is considered a pinch. * @property {int} [maxTimeThreshold=null] Time, in milliseconds, between touchStart and touchEnd must NOT exceed in order to be considered a swipe. * @property {int} [fingerReleaseThreshold=250] Time in milliseconds between releasing multiple fingers. If 2 fingers are down, and are released one after the other, if they are within this threshold, it counts as a simultaneous release. * @property {function} [swipe=null] A handler to catch all swipes. See {@link $.fn.swipe#event:swipe} * @property {function} [swipeLeft=null] A handler that is triggered for "left" swipes. See {@link $.fn.swipe#event:swipeLeft} * @property {function} [swipeRight=null] A handler that is triggered for "right" swipes. See {@link $.fn.swipe#event:swipeRight} * @property {function} [swipeUp=null] A handler that is triggered for "up" swipes. See {@link $.fn.swipe#event:swipeUp} * @property {function} [swipeDown=null] A handler that is triggered for "down" swipes. See {@link $.fn.swipe#event:swipeDown} * @property {function} [swipeStatus=null] A handler triggered for every phase of the swipe. See {@link $.fn.swipe#event:swipeStatus} * @property {function} [pinchIn=null] A handler triggered for pinch in events. See {@link $.fn.swipe#event:pinchIn} * @property {function} [pinchOut=null] A handler triggered for pinch out events. See {@link $.fn.swipe#event:pinchOut} * @property {function} [pinchStatus=null] A handler triggered for every phase of a pinch. See {@link $.fn.swipe#event:pinchStatus} * @property {function} [click=null] A handler triggered when a user just clicks on the item, rather than swipes it. If they do not move, click is triggered, if they do move, it is not. * @property {boolean} [triggerOnTouchEnd=true] If true, the swipe events are triggered when the touch end event is received (user releases finger). If false, it will be triggered on reaching the threshold, and then cancel the touch event automatically. * @property {boolean} [triggerOnTouchLeave=false] If true, then when the user leaves the swipe object, the swipe will end and trigger appropriate handlers. * @property {string} [allowPageScroll='auto'] How the browser handles page scrolls when the user is swiping on a touchSwipe object. See {@link $.fn.swipe.pageScroll}.

"auto" : all undefined swipes will cause the page to scroll in that direction.
"none" : the page will not scroll when user swipes.
"horizontal" : will force page to scroll on horizontal swipes.
"vertical" : will force page to scroll on vertical swipes.
* @property {boolean} [fallbackToMouseEvents=true] If true mouse events are used when run on a non touch device, false will stop swipes being triggered by mouse events on non tocuh devices. * @property {string} [excludedElements="button, input, select, textarea, a, .noSwipe"] A jquery selector that specifies child elements that do NOT trigger swipes. By default this excludes all form, input, select, button, anchor and .noSwipe elements. */ var defaults = { fingers: 1, threshold: 75, pinchThreshold:20, maxTimeThreshold: null, fingerReleaseThreshold:250, swipe: null, swipeLeft: null, swipeRight: null, swipeUp: null, swipeDown: null, swipeStatus: null, pinchIn:null, pinchOut:null, pinchStatus:null, click: null, triggerOnTouchEnd: true, triggerOnTouchLeave:false, allowPageScroll: "auto", fallbackToMouseEvents: true, excludedElements:"button, input, select, textarea, a, .noSwipe" }; /** * Applies TouchSwipe behaviour to one or more jQuery objects. * The TouchSwipe plugin can be instantiated via this method, or methods within * TouchSwipe can be executed via this method as per jQuery plugin architecture. * @see TouchSwipe * @class * @param {Mixed} method If the current DOMNode is a TouchSwipe object, and method is a TouchSwipe method, then * the method is executed, and any following arguments are passed to the TouchSwipe method. * If method is an object, then the TouchSwipe class is instantiated on the current DOMNode, passing the * configuration properties defined in the object. See TouchSwipe * */ $.fn.swipe = function (method) { var $this = $(this), plugin = $this.data(PLUGIN_NS); //Check if we are already instantiated and trying to execute a method if (plugin && typeof method === 'string') { if (plugin[method]) { return plugin[method].apply(this, Array.prototype.slice.call(arguments, 1)); } else { $.error('Method ' + method + ' does not exist on jQuery.swipe'); } } //Else not instantiated and trying to pass init object (or nothing) else if (!plugin && (typeof method === 'object' || !method)) { return init.apply(this, arguments); } return $this; }; //Expose our defaults so a user could override the plugin defaults $.fn.swipe.defaults = defaults; /** * The phases that a touch event goes through. The phase is passed to the event handlers. * These properties are read only, attempting to change them will not alter the values passed to the event handlers. * @namespace * @readonly * @property {string} PHASE_START Constant indicating the start phase of the touch event. Value is "start". * @property {string} PHASE_MOVE Constant indicating the move phase of the touch event. Value is "move". * @property {string} PHASE_END Constant indicating the end phase of the touch event. Value is "end". * @property {string} PHASE_CANCEL Constant indicating the cancel phase of the touch event. Value is "cancel". */ $.fn.swipe.phases = { PHASE_START: PHASE_START, PHASE_MOVE: PHASE_MOVE, PHASE_END: PHASE_END, PHASE_CANCEL: PHASE_CANCEL }; /** * The direction constants that are passed to the event handlers. * These properties are read only, attempting to change them will not alter the values passed to the event handlers. * @namespace * @readonly * @property {string} LEFT Constant indicating the left direction. Value is "left". * @property {string} RIGHT Constant indicating the right direction. Value is "right". * @property {string} UP Constant indicating the up direction. Value is "up". * @property {string} DOWN Constant indicating the down direction. Value is "cancel". * @property {string} IN Constant indicating the in direction. Value is "in". * @property {string} OUT Constant indicating the out direction. Value is "out". */ $.fn.swipe.directions = { LEFT: LEFT, RIGHT: RIGHT, UP: UP, DOWN: DOWN, IN : IN, OUT: OUT }; /** * The page scroll constants that can be used to set the value of allowPageScroll option * These properties are read only * @namespace * @readonly * @see $.fn.swipe.defaults#allowPageScroll * @property {string} NONE Constant indicating no page scrolling is allowed. Value is "none". * @property {string} HORIZONTAL Constant indicating horizontal page scrolling is allowed. Value is "horizontal". * @property {string} VERTICAL Constant indicating vertical page scrolling is allowed. Value is "vertical". * @property {string} AUTO Constant indicating either horizontal or vertical will be allowed, depending on the swipe handlers registered. Value is "auto". */ $.fn.swipe.pageScroll = { NONE: NONE, HORIZONTAL: HORIZONTAL, VERTICAL: VERTICAL, AUTO: AUTO }; /** * Constants representing the number of fingers used in a swipe. These are used to set both the value of fingers in the * options object, as well as the value of the fingers event property. * These properties are read only, attempting to change them will not alter the values passed to the event handlers. * @namespace * @readonly * @see $.fn.swipe.defaults#fingers * @property {string} ONE Constant indicating 1 finger is to be detected / was detected. Value is 1. * @property {string} TWO Constant indicating 2 fingers are to be detected / were detected. Value is 1. * @property {string} THREE Constant indicating 3 finger are to be detected / were detected. Value is 1. * @property {string} ALL Constant indicating any combination of finger are to be detected. Value is "all". */ $.fn.swipe.fingers = { ONE: 1, TWO: 2, THREE: 3, ALL: ALL_FINGERS }; /** * Initialise the plugin for each DOM element matched * This creates a new instance of the main TouchSwipe class for each DOM element, and then * saves a reference to that instance in the elements data property. * @internal */ function init(options) { //Prep and extend the options if (options && (options.allowPageScroll === undefined && (options.swipe !== undefined || options.swipeStatus !== undefined))) { options.allowPageScroll = NONE; } if (!options) { options = {}; } //pass empty object so we dont modify the defaults options = $.extend({}, $.fn.swipe.defaults, options); //For each element instantiate the plugin return this.each(function () { var $this = $(this); //Check we havent already initialised the plugin var plugin = $this.data(PLUGIN_NS); if (!plugin) { plugin = new touchSwipe(this, options); $this.data(PLUGIN_NS, plugin); } }); } /** * Main TouchSwipe Plugin Class. * Do not use this to construct your TouchSwipe object, use the jQuery plugin method $.fn.swipe(); {@link $.fn.swipe} * @private * @name TouchSwipe * @param {DOMNode} element The HTML DOM object to apply to plugin to * @param {Object} options The options to configure the plugin with. @link {$.fn.swipe.defaults} * @see $.fh.swipe.defaults * @see $.fh.swipe * @class */ function touchSwipe(element, options) { var useTouchEvents = (SUPPORTS_TOUCH || !options.fallbackToMouseEvents), START_EV = useTouchEvents ? 'touchstart' : 'mousedown', MOVE_EV = useTouchEvents ? 'touchmove' : 'mousemove', END_EV = useTouchEvents ? 'touchend' : 'mouseup', LEAVE_EV = useTouchEvents ? null : 'mouseleave', //we manually detect leave on touch devices, so null event here CANCEL_EV = 'touchcancel'; //touch properties var distance = 0; var direction = null; var duration = 0; var startTouchesDistance=0; var endTouchesDistance=0; var pinchZoom = 1; var pinchDirection=0; //jQuery wrapped element for this instance var $element = $(element); //Current phase of th touch cycle var phase = "start"; // the current number of fingers being used. var fingerCount = 0; //track mouse points / delta var fingerData=null; //track times var startTime = 0; var endTime = 0; var previousTouchEndTime=0; var previousTouchFingerCount=0; // Add gestures to all swipable areas if supported try { $element.bind(START_EV, touchStart); $element.bind(CANCEL_EV, touchCancel); } catch (e) { $.error('events not supported ' + START_EV + ',' + CANCEL_EV + ' on jQuery.swipe'); } // //Public methods // /** * re-enables the swipe plugin with the previous configuration * @function * @name $.fn.swipe#enable * @return {DOMNode} The Dom element that was registered with TouchSwipe * @example $("#element").swipe("enable"); */ this.enable = function () { $element.bind(START_EV, touchStart); $element.bind(CANCEL_EV, touchCancel); return $element; }; /** * disables the swipe plugin * @function * @name $.fn.swipe#disable * @return {DOMNode} The Dom element that is now registered with TouchSwipe * @example $("#element").swipe("disable"); */ this.disable = function () { removeListeners(); return $element; }; /** * Destroy the swipe plugin completely. To use any swipe methods, you must re initialise the plugin. * @function * @name $.fn.swipe#destroy * @return {DOMNode} The Dom element that was registered with TouchSwipe * @example $("#element").swipe("destroy"); */ this.destroy = function () { removeListeners(); $element.data(PLUGIN_NS, null); return $element; }; // // Private methods // // // EVENTS // /** * Event handler for a touch start event. * Stops the default click event from triggering and stores where we touched * @inner * @param {object} jqEvent The normalised jQuery event object. */ function touchStart(jqEvent) { //If we already in a touch event (a finger already in use) then ignore subsequent ones.. if( getTouchInProgress() ) return; //Check if this element matches any in the excluded elements selectors, or its parent is excluded, if so, DONT swipe if( $(jqEvent.target).closest( options.excludedElements, $element ).length>0 ) return; //As we use Jquery bind for events, we need to target the original event object var event = jqEvent.originalEvent; var ret, evt = SUPPORTS_TOUCH ? event.touches[0] : event; phase = PHASE_START; //If we support touches, get the finger count if (SUPPORTS_TOUCH) { // get the total number of fingers touching the screen fingerCount = event.touches.length; } //Else this is the desktop, so stop the browser from dragging the image else { jqEvent.preventDefault(); //call this on jq event so we are cross browser } //clear vars.. distance = 0; direction = null; pinchDirection=null; duration = 0; startTouchesDistance=0; endTouchesDistance=0; pinchZoom = 1; pinchDistance = 0; fingerData=createAllFingerData(); cancelMultiFingerRelease(); // check the number of fingers is what we are looking for, or we are capturing pinches if (!SUPPORTS_TOUCH || (fingerCount === options.fingers || options.fingers === ALL_FINGERS) || hasPinches()) { // get the coordinates of the touch createFingerData( 0, evt ); startTime = getTimeStamp(); if(fingerCount==2) { //Keep track of the initial pinch distance, so we can calculate the diff later //Store second finger data as start createFingerData( 1, event.touches[1] ); startTouchesDistance = endTouchesDistance = calculateTouchesDistance(fingerData[0].start, fingerData[1].start); } if (options.swipeStatus || options.pinchStatus) { ret = triggerHandler(event, phase); } } else { //A touch with more or less than the fingers we are looking for, so cancel ret = false; } //If we have a return value from the users handler, then return and cancel if (ret === false) { phase = PHASE_CANCEL; triggerHandler(event, phase); return ret; } else { setTouchInProgress(true); } }; /** * Event handler for a touch move event. * If we change fingers during move, then cancel the event * @inner * @param {object} jqEvent The normalised jQuery event object. */ function touchMove(jqEvent) { //As we use Jquery bind for events, we need to target the original event object var event = jqEvent.originalEvent; //If we are ending, cancelling, or within the threshold of 2 fingers being released, dont track anything.. if (phase === PHASE_END || phase === PHASE_CANCEL || inMultiFingerRelease()) return; var ret, evt = SUPPORTS_TOUCH ? event.touches[0] : event; //Update the finger data var currentFinger = updateFingerData(evt); endTime = getTimeStamp(); if (SUPPORTS_TOUCH) { fingerCount = event.touches.length; } phase = PHASE_MOVE; //If we have 2 fingers get Touches distance as well if(fingerCount==2) { //Keep track of the initial pinch distance, so we can calculate the diff later //We do this here as well as the start event, incase they start with 1 finger, and the press 2 fingers if(startTouchesDistance==0) { //Create second finger if this is the first time... createFingerData( 1, event.touches[1] ); startTouchesDistance = endTouchesDistance = calculateTouchesDistance(fingerData[0].start, fingerData[1].start); } else { //Else just update the second finger updateFingerData(event.touches[1]); endTouchesDistance = calculateTouchesDistance(fingerData[0].end, fingerData[1].end); pinchDirection = calculatePinchDirection(fingerData[0].end, fingerData[1].end); } pinchZoom = calculatePinchZoom(startTouchesDistance, endTouchesDistance); pinchDistance = Math.abs(startTouchesDistance - endTouchesDistance); } if ( (fingerCount === options.fingers || options.fingers === ALL_FINGERS) || !SUPPORTS_TOUCH || hasPinches() ) { direction = calculateDirection(currentFinger.start, currentFinger.end); //Check if we need to prevent default evnet (page scroll / pinch zoom) or not validateDefaultEvent(jqEvent, direction); //Distance and duration are all off the main finger distance = calculateDistance(currentFinger.start, currentFinger.end); duration = calculateDuration(); if (options.swipeStatus || options.pinchStatus) { ret = triggerHandler(event, phase); } //If we trigger end events when threshold are met, or trigger events when touch leves element if(!options.triggerOnTouchEnd || options.triggerOnTouchLeave) { var inBounds = true; //If checking if we leave the element, run the bounds check (we can use touchleave as its not supported on webkit) if(options.triggerOnTouchLeave) { var bounds = getbounds( this ); inBounds = isInBounds( currentFinger.end, bounds ); } //Trigger end handles as we swipe if thresholds met or if we have left the element if the user has asked to check these.. if(!options.triggerOnTouchEnd && inBounds) { phase = getNextPhase( PHASE_MOVE ); } //We end if out of bounds here, so set current phase to END, and check if its modified else if(options.triggerOnTouchLeave && !inBounds ) { phase = getNextPhase( PHASE_END ); } if(phase==PHASE_CANCEL || phase==PHASE_END) { triggerHandler(event, phase); } } } else { phase = PHASE_CANCEL; triggerHandler(event, phase); } if (ret === false) { phase = PHASE_CANCEL; triggerHandler(event, phase); } } /** * Event handler for a touch end event. * Calculate the direction and trigger events * @inner * @param {object} jqEvent The normalised jQuery event object. */ function touchEnd(jqEvent) { //As we use Jquery bind for events, we need to target the original event object var event = jqEvent.originalEvent; //If we are still in a touch with another finger return //This allows us to wait a fraction and see if the other finger comes up, if it does within the threshold, then we treat it as a multi release, not a single release. if (SUPPORTS_TOUCH) { if(event.touches.length>0) { startMultiFingerRelease(); return true; } } //If a previous finger has been released, check how long ago, if within the threshold, then assume it was a multifinger release. //This is used to allow 2 fingers to release fractionally after each other, whilst maintainig the event as containg 2 fingers, not 1 if(inMultiFingerRelease()) { fingerCount=previousTouchFingerCount; } //call this on jq event so we are cross browser jqEvent.preventDefault(); //Set end of swipe endTime = getTimeStamp(); //If we trigger handlers at end of swipe OR, we trigger during, but they didnt trigger and we are still in the move phase if (options.triggerOnTouchEnd || (options.triggerOnTouchEnd == false && phase === PHASE_MOVE)) { phase = PHASE_END; //The number of fingers we want were matched, or on desktop we ignore var hasCorrectFingerCount = ((fingerCount === options.fingers || options.fingers === ALL_FINGERS) || !SUPPORTS_TOUCH); //We have an end value for the finger var hasEndPoint = fingerData[0].end.x !== 0; //Check if the above conditions are met to make this swipe count... var isSwipe = hasCorrectFingerCount && hasEndPoint && (validatePinch() || validateSwipe()); //If we are in a swipe, validate the time and distance... if (isSwipe) { triggerHandler(event, phase); } else { phase = PHASE_CANCEL; triggerHandler(event, phase); } } else if (phase === PHASE_MOVE) { phase = PHASE_CANCEL; triggerHandler(event, phase); } setTouchInProgress(false); } /** * Event handler for a touch cancel event. * Clears current vars * @inner */ function touchCancel() { // reset the variables back to default values fingerCount = 0; endTime = 0; startTime = 0; startTouchesDistance=0; endTouchesDistance=0; pinchZoom=1; //If we were in progress of tracking a possible multi touch end, then re set it. cancelMultiFingerRelease(); setTouchInProgress(false); } /** * Event handler for a touch leave event. * This is only triggered on desktops, in touch we work this out manually * as the touchleave event is not supported in webkit * @inner */ function touchLeave(jqEvent) { var event = jqEvent.originalEvent; //If we have the trigger on leve property set.... if(options.triggerOnTouchLeave) { phase = getNextPhase( PHASE_END ); triggerHandler(event, phase); } } /** * Removes all listeners that were associated with the plugin * @inner */ function removeListeners() { $element.unbind(START_EV, touchStart); $element.unbind(CANCEL_EV, touchCancel); $element.unbind(MOVE_EV, touchMove); $element.unbind(END_EV, touchEnd); //we only have leave events on desktop, we manually calcuate leave on touch as its not supported in webkit if(LEAVE_EV) { $element.unbind(LEAVE_EV, touchLeave); } setTouchInProgress(false); } /** * Checks if the time and distance thresholds have been met, and if so then the appropriate handlers are fired. */ function getNextPhase(currentPhase) { var nextPhase = currentPhase; // Ensure we have valid swipe (under time and over distance and check if we are out of bound...) var validTime = validateSwipeTime(); var validDistance = validateSwipeDistance(); //If we have exceeded our time, then cancel if(!validTime) { nextPhase = PHASE_CANCEL; } //Else if we are moving, and have reached distance then end else if (validDistance && currentPhase == PHASE_MOVE && (!options.triggerOnTouchEnd || options.triggerOnTouchLeave) ) { nextPhase = PHASE_END; } //Else if we have ended by leaving and didnt reach distance, then cancel else if (!validDistance && currentPhase==PHASE_END && options.triggerOnTouchLeave) { nextPhase = PHASE_CANCEL; } return nextPhase; } /** * Trigger the relevant event handler * The handlers are passed the original event, the element that was swiped, and in the case of the catch all handler, the direction that was swiped, "left", "right", "up", or "down" * @param {object} event the original event object * @param {string} phase the phase of the swipe (start, end cancel etc) {@link $.fn.swipe.phases} * @inner */ function triggerHandler(event, phase) { var ret = undefined; // SWIPE GESTURES if(hasSwipes()) { //Trigger the swipe events... ret = triggerHandlerForGesture(event, phase, SWIPE); } // PINCH GESTURES (if the above didnt cancel) if(hasPinches() && ret!==false) { //Trigger the pinch events... ret = triggerHandlerForGesture(event, phase, PINCH); } // CLICKS / TAPS (if the above didnt cancel) if(hasClick() && ret!==false) { //Trigger the pinch events... ret = triggerHandlerForGesture(event, phase, CLICK); } // If we are cancelling the gesture, then manually trigger the reset handler if (phase === PHASE_CANCEL) { touchCancel(event); } // If we are ending the gesture, then manually trigger the reset handler IF all fingers are off if(phase === PHASE_END) { //If we support touch, then check that all fingers are off before we cancel if (SUPPORTS_TOUCH) { if(event.touches.length==0) { touchCancel(event); } } else { touchCancel(event); } } return ret; } /** * Trigger the relevant event handler * The handlers are passed the original event, the element that was swiped, and in the case of the catch all handler, the direction that was swiped, "left", "right", "up", or "down" * @param {object} event the original event object * @param {string} phase the phase of the swipe (start, end cancel etc) {@link $.fn.swipe.phases} * @param {string} gesture the gesture to triger a handler for : PINCH or SWIPE {@link $.fn.swipe.gestures} * @return Boolean False, to indicate that the event should stop propagation, or void. * @inner */ function triggerHandlerForGesture(event, phase, gesture) { var ret=undefined; //SWIPES.... if(gesture==SWIPE) { //Trigger status every time.. if (options.swipeStatus) { ret = options.swipeStatus.call($element, event, phase, direction || null, distance || 0, duration || 0, fingerCount); //If the status cancels, then dont run the subsequent event handlers.. if(ret===false) return false; } if (phase == PHASE_END && validateSwipe()) { //trigger catch all event handler if (options.swipe) { ret = options.swipe.call($element, event, direction, distance, duration, fingerCount); //If the status cancels, then dont run the subsequent event handlers.. if(ret===false) return false; } //trigger direction specific event handlers switch (direction) { case LEFT: if (options.swipeLeft) { ret = options.swipeLeft.call($element, event, direction, distance, duration, fingerCount); } break; case RIGHT: if (options.swipeRight) { ret = options.swipeRight.call($element, event, direction, distance, duration, fingerCount); } break; case UP: if (options.swipeUp) { ret = options.swipeUp.call($element, event, direction, distance, duration, fingerCount); } break; case DOWN: if (options.swipeDown) { ret = options.swipeDown.call($element, event, direction, distance, duration, fingerCount); } break; } } } //PINCHES.... if(gesture==PINCH) { //Trigger status every time if (options.pinchStatus) { ret = options.pinchStatus.call($element, event, phase, pinchDirection || null, pinchDistance || 0, duration || 0, fingerCount, pinchZoom); //If the status cancels, then dont run the subsequent event handlers.. if(ret===false) return false; } if(phase==PHASE_END && validatePinch()) { switch (pinchDirection) { case IN: if (options.pinchIn) { ret = options.pinchIn.call($element, event, pinchDirection || null, pinchDistance || 0, duration || 0, fingerCount, pinchZoom); } break; case OUT: if (options.pinchOut) { ret = options.pinchOut.call($element, event, pinchDirection || null, pinchDistance || 0, duration || 0, fingerCount, pinchZoom); } break; } } } //CLICKS... if(gesture==CLICK) { if(phase === PHASE_CANCEL) { if (options.click && (fingerCount === 1 || !SUPPORTS_TOUCH) && (isNaN(distance) || distance === 0)) { ret = options.click.call($element, event, event.target); } } } return ret; } // // GESTURE VALIDATION // /** * Checks the user has swipe far enough * @return Boolean if threshold has been set, return true if the threshold was met, else false. * If no threshold was set, then we return true. * @inner */ function validateSwipeDistance() { if (options.threshold !== null) { return distance >= options.threshold; } return true; } /** * Checks the user has pinched far enough * @return Boolean if pinchThreshold has been set, return true if the threshold was met, else false. * If no threshold was set, then we return true. * @inner */ function validatePinchDistance() { if (options.pinchThreshold !== null) { return pinchDistance >= options.pinchThreshold; } return true; } /** * Checks that the time taken to swipe meets the minimum / maximum requirements * @return Boolean * @inner */ function validateSwipeTime() { var result; //If no time set, then return true if (options.maxTimeThreshold) { if (duration >= options.maxTimeThreshold) { result = false; } else { result = true; } } else { result = true; } return result; } /** * Checks direction of the swipe and the value allowPageScroll to see if we should allow or prevent the default behaviour from occurring. * This will essentially allow page scrolling or not when the user is swiping on a touchSwipe object. * @param {object} jqEvent The normalised jQuery representation of the event object. * @param {string} direction The direction of the event. See {@link $.fn.swipe.directions} * @see $.fn.swipe.directions * @inner */ function validateDefaultEvent(jqEvent, direction) { if (options.allowPageScroll === NONE || hasPinches()) { jqEvent.preventDefault(); } else { var auto = options.allowPageScroll === AUTO; switch (direction) { case LEFT: if ((options.swipeLeft && auto) || (!auto && options.allowPageScroll != HORIZONTAL)) { jqEvent.preventDefault(); } break; case RIGHT: if ((options.swipeRight && auto) || (!auto && options.allowPageScroll != HORIZONTAL)) { jqEvent.preventDefault(); } break; case UP: if ((options.swipeUp && auto) || (!auto && options.allowPageScroll != VERTICAL)) { jqEvent.preventDefault(); } break; case DOWN: if ((options.swipeDown && auto) || (!auto && options.allowPageScroll != VERTICAL)) { jqEvent.preventDefault(); } break; } } } // PINCHES /** * Returns true of the current pinch meets the thresholds * @return Boolean * @inner */ function validatePinch() { return validatePinchDistance();; } /** * Returns true if any Pinch events have been registered * @return Boolean * @inner */ function hasPinches() { //Enure we dont return 0 or null for false values return !!(options.pinchStatus || options.pinchIn || options.pinchOut); } /** * Returns true if we are detecting pinches, and have one * @return Boolean * @inner */ function didPinch() { //Enure we dont return 0 or null for false values return !!(validatePinch() && hasPinches()); } // SWIPES /** * Returns true if the current swipe meets the thresholds * @return Boolean * @inner */ function validateSwipe() { //Check validity of swipe var hasValidTime = validateSwipeTime(); var hasValidDistance = validateSwipeDistance(); // if the user swiped more than the minimum length, perform the appropriate action // hasValidDistance is null when no distance is set var valid = hasValidDistance && hasValidTime; return valid; } /** * Returns true if any Swipe events have been registered * @return Boolean * @inner */ function hasSwipes() { //Enure we dont return 0 or null for false values return !!(options.swipe || options.swipeStatus || options.swipeLeft || options.swipeRight || options.swipeUp || options.swipeDown); } /** * Returns true if we are detecting swipes and have one * @return Boolean * @inner */ function didSwipe() { //Enure we dont return 0 or null for false values return !!(validateSwipe() && hasSwipes()); } // TAP / CLICK /** * Returns true of any clcik / tap evetns have been registered * @return Boolean * @inner */ function hasClick() { //Enure we dont return 0 or null for false values return !!(options.click); } // MULTI FINGER TOUCH /** * Starts tracking the time between 2 finger releases, and keeps track of how many fingers we initially had up * @inner */ function startMultiFingerRelease() { previousTouchEndTime = getTimeStamp(); previousTouchFingerCount = event.touches.length+1; } /** * Cancels the tracking of time between 2 finger releases, and resets counters * @inner */ function cancelMultiFingerRelease() { previousTouchEndTime = 0; previousTouchFingerCount = 0; } /** * Checks if we are in the threshold between 2 fingers being released * @return Boolean * @inner */ function inMultiFingerRelease() { var withinThreshold = false; if(previousTouchEndTime) { var diff = getTimeStamp() - previousTouchEndTime if( diff<=options.fingerReleaseThreshold ) { withinThreshold = true; } } return withinThreshold; } /** * gets a data flag to indicate that a touch is in progress * @return Boolean * @inner */ function getTouchInProgress() { //strict equality to ensure only true and false are returned return !!($element.data(PLUGIN_NS+'_intouch') === true); } /** * Sets a data flag to indicate that a touch is in progress * @param {boolean} val The value to set the property to * @inner */ function setTouchInProgress(val) { //Add or remove event listeners depending on touch status if(val===true) { $element.bind(MOVE_EV, touchMove); $element.bind(END_EV, touchEnd); //we only have leave events on desktop, we manually calcuate leave on touch as its not supported in webkit if(LEAVE_EV) { $element.bind(LEAVE_EV, touchLeave); } } else { $element.unbind(MOVE_EV, touchMove, false); $element.unbind(END_EV, touchEnd, false); //we only have leave events on desktop, we manually calcuate leave on touch as its not supported in webkit if(LEAVE_EV) { $element.unbind(LEAVE_EV, touchLeave, false); } } //strict equality to ensure only true and false can update the value $element.data(PLUGIN_NS+'_intouch', val === true); } /** * Creates the finger data for the touch/finger in the event object. * @param {int} index The index in the array to store the finger data (usually the order the fingers were pressed) * @param {object} evt The event object containing finger data * @return finger data object * @inner */ function createFingerData( index, evt ) { var id = evt.identifier!==undefined ? evt.identifier : 0; fingerData[index].identifier = id; fingerData[index].start.x = fingerData[index].end.x = evt.pageX; fingerData[index].start.y = fingerData[index].end.y = evt.pageY; return fingerData[index]; } /** * Updates the finger data for a particular event object * @param {object} evt The event object containing the touch/finger data to upadte * @return a finger data object. * @inner */ function updateFingerData(evt) { var id = evt.identifier!==undefined ? evt.identifier : 0; var f = getFingerData( id ); f.end.x = evt.pageX; f.end.y = evt.pageY; return f; } /** * Returns a finger data object by its event ID. * Each touch event has an identifier property, which is used * to track repeat touches * @param {int} id The unique id of the finger in the sequence of touch events. * @return a finger data object. * @inner */ function getFingerData( id ) { for(var i=0; i= 0)) { return LEFT; } else if ((angle <= 360) && (angle >= 315)) { return LEFT; } else if ((angle >= 135) && (angle <= 225)) { return RIGHT; } else if ((angle > 45) && (angle < 135)) { return DOWN; } else { return UP; } } /** * Returns a MS time stamp of the current time * @return int * @inner */ function getTimeStamp() { var now = new Date(); return now.getTime(); } /** * Returns a bounds object with left, right, top and bottom properties for the element specified. * @param {DomNode} The DOM node to get the bounds for. */ function getbounds( el ) { el = $(el); var offset = el.offset(); var bounds = { left:offset.left, right:offset.left+el.outerWidth(), top:offset.top, bottom:offset.top+el.outerHeight() } return bounds; } /** * Checks if the point object is in the bounds object. * @param {object} point A point object. * @param {int} point.x The x value of the point. * @param {int} point.y The x value of the point. * @param {object} bounds The bounds object to test * @param {int} bounds.left The leftmost value * @param {int} bounds.right The righttmost value * @param {int} bounds.top The topmost value * @param {int} bounds.bottom The bottommost value */ function isInBounds(point, bounds) { return (point.x > bounds.left && point.x < bounds.right && point.y > bounds.top && point.y < bounds.bottom); }; } /** * A catch all handler that is triggered for all swipe directions. * @name $.fn.swipe#swipe * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user swiped in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user swiped * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} */ /** * A handler that is triggered for "left" swipes. * @name $.fn.swipe#swipeLeft * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user swiped in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user swiped * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} */ /** * A handler that is triggered for "right" swipes. * @name $.fn.swipe#swipeRight * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user swiped in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user swiped * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} */ /** * A handler that is triggered for "up" swipes. * @name $.fn.swipe#swipeUp * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user swiped in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user swiped * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} */ /** * A handler that is triggered for "down" swipes. * @name $.fn.swipe#swipeDown * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user swiped in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user swiped * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} */ /** * A handler triggered for every phase of the swipe. This handler is constantly fired for the duration of the pinch. * This is triggered regardless of swipe thresholds. * @name $.fn.swipe#swipeStatus * @event * @default null * @param {EventObject} event The original event object * @param {string} phase The phase of the swipe event. See {@link $.fn.swipe.phases} * @param {string} direction The direction the user swiped in. This is null if the user has yet to move. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user swiped. This is 0 if the user has yet to move. * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} */ /** * A handler triggered for pinch in events. * @name $.fn.swipe#pinchIn * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user pinched in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user pinched * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} * @param {int} zoom The zoom/scale level the user pinched too, 0-1. */ /** * A handler triggered for pinch out events. * @name $.fn.swipe#pinchOut * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user pinched in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user pinched * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} * @param {int} zoom The zoom/scale level the user pinched too, 0-1. */ /** * A handler triggered for all pinch events. This handler is constantly fired for the duration of the pinch. This is triggered regardless of thresholds. * @name $.fn.swipe#pinchStatus * @event * @default null * @param {EventObject} event The original event object * @param {int} direction The direction the user pinched in. See {@link $.fn.swipe.directions} * @param {int} distance The distance the user pinched * @param {int} duration The duration of the swipe in milliseconds * @param {int} fingerCount The number of fingers used. See {@link $.fn.swipe.fingers} * @param {int} zoom The zoom/scale level the user pinched too, 0-1. */ /** * A click handler triggered when a user simply clicks, rather than swipes on an element. * @name $.fn.swipe#click * @event * @default null * @param {EventObject} event The original event object * @param {DomObject} target The element clicked on. */ })(jQuery); ;FI"dependency_digest;F"%f6a441afd97f8f247a0546334a8a8803I"required_paths;F[I"f/Users/jmcasden/Code/MHL-vagrant/lentil/vendor/assets/javascripts/touchswipe/jquery.touchSwipe.js;TI"dependency_paths;F[{I" path;FI"f/Users/jmcasden/Code/MHL-vagrant/lentil/vendor/assets/javascripts/touchswipe/jquery.touchSwipe.js;TI" mtime;FI"2013-05-10T14:53:57-04:00;FI" digest;F"%0c6327bd5c00224c69f8c0a6b97da147I" _version;F"%ffd318ca8b794f42f5029101c2cf5d91