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File: engine/modules/contrib/foundation/js/plugins/foundation.util.touch.js

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File: engine/modules/contrib/foundation/js/plugins/foundation.util.touch.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Quanta CMS
Manage content that works without a database
Author: By
Last change:
Date: 5 years ago
Size: 10,167 bytes
 

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//************************************************** //**Work inspired by multiple jquery swipe plugins** //**Done by Yohai Ararat *************************** //************************************************** (function ($) { $.spotSwipe = { version: '1.0.0', enabled: 'ontouchstart' in document.documentElement, preventDefault: false, moveThreshold: 75, timeThreshold: 200 }; var startPosX, startPosY, startTime, elapsedTime, isMoving = false; function onTouchEnd() { // alert(this); this.removeEventListener('touchmove', onTouchMove); this.removeEventListener('touchend', onTouchEnd); isMoving = false; } function onTouchMove(e) { if ($.spotSwipe.preventDefault) { e.preventDefault(); } if (isMoving) { var x = e.touches[0].pageX; var y = e.touches[0].pageY; var dx = startPosX - x; var dy = startPosY - y; var dir; elapsedTime = new Date().getTime() - startTime; if (Math.abs(dx) >= $.spotSwipe.moveThreshold && elapsedTime <= $.spotSwipe.timeThreshold) { dir = dx > 0 ? 'left' : 'right'; } // else if(Math.abs(dy) >= $.spotSwipe.moveThreshold && elapsedTime <= $.spotSwipe.timeThreshold) { // dir = dy > 0 ? 'down' : 'up'; // } if (dir) { e.preventDefault(); onTouchEnd.call(this); $(this).trigger('swipe', dir).trigger('swipe' + dir); } } } function onTouchStart(e) { if (e.touches.length == 1) { startPosX = e.touches[0].pageX; startPosY = e.touches[0].pageY; isMoving = true; startTime = new Date().getTime(); this.addEventListener('touchmove', onTouchMove, false); this.addEventListener('touchend', onTouchEnd, false); } } function init() { this.addEventListener && this.addEventListener('touchstart', onTouchStart, false); } function teardown() { this.removeEventListener('touchstart', onTouchStart); } $.event.special.swipe = { setup: init }; $.each(['left', 'up', 'down', 'right'], function () { $.event.special['swipe' + this] = { setup: function () { $(this).on('swipe', $.noop); } }; }); })(jQuery); /**************************************************** * Method for adding psuedo drag events to elements * ***************************************************/ !function ($) { $.fn.addTouch = function () { this.each(function (i, el) { $(el).bind('touchstart touchmove touchend touchcancel', function () { //we pass the original event object because the jQuery event //object is normalized to w3c specs and does not provide the TouchList handleTouch(event); }); }); var handleTouch = function (event) { var touches = event.changedTouches, first = touches[0], eventTypes = { touchstart: 'mousedown', touchmove: 'mousemove', touchend: 'mouseup' }, type = eventTypes[event.type], simulatedEvent; if ('MouseEvent' in window && typeof window.MouseEvent === 'function') { simulatedEvent = new window.MouseEvent(type, { 'bubbles': true, 'cancelable': true, 'screenX': first.screenX, 'screenY': first.screenY, 'clientX': first.clientX, 'clientY': first.clientY }); } else { simulatedEvent = document.createEvent('MouseEvent'); simulatedEvent.initMouseEvent(type, true, true, window, 1, first.screenX, first.screenY, first.clientX, first.clientY, false, false, false, false, 0 /*left*/, null); } first.target.dispatchEvent(simulatedEvent); }; }; }(jQuery); //********************************** //**From the jQuery Mobile Library** //**need to recreate functionality** //**and try to improve if possible** //********************************** /* Removing the jQuery function **** ************************************ (function( $, window, undefined ) { var $document = $( document ), // supportTouch = $.mobile.support.touch, touchStartEvent = 'touchstart'//supportTouch ? "touchstart" : "mousedown", touchStopEvent = 'touchend'//supportTouch ? "touchend" : "mouseup", touchMoveEvent = 'touchmove'//supportTouch ? "touchmove" : "mousemove"; // setup new event shortcuts $.each( ( "touchstart touchmove touchend " + "swipe swipeleft swiperight" ).split( " " ), function( i, name ) { $.fn[ name ] = function( fn ) { return fn ? this.bind( name, fn ) : this.trigger( name ); }; // jQuery < 1.8 if ( $.attrFn ) { $.attrFn[ name ] = true; } }); function triggerCustomEvent( obj, eventType, event, bubble ) { var originalType = event.type; event.type = eventType; if ( bubble ) { $.event.trigger( event, undefined, obj ); } else { $.event.dispatch.call( obj, event ); } event.type = originalType; } // also handles taphold // Also handles swipeleft, swiperight $.event.special.swipe = { // More than this horizontal displacement, and we will suppress scrolling. scrollSupressionThreshold: 30, // More time than this, and it isn't a swipe. durationThreshold: 1000, // Swipe horizontal displacement must be more than this. horizontalDistanceThreshold: window.devicePixelRatio >= 2 ? 15 : 30, // Swipe vertical displacement must be less than this. verticalDistanceThreshold: window.devicePixelRatio >= 2 ? 15 : 30, getLocation: function ( event ) { var winPageX = window.pageXOffset, winPageY = window.pageYOffset, x = event.clientX, y = event.clientY; if ( event.pageY === 0 && Math.floor( y ) > Math.floor( event.pageY ) || event.pageX === 0 && Math.floor( x ) > Math.floor( event.pageX ) ) { // iOS4 clientX/clientY have the value that should have been // in pageX/pageY. While pageX/page/ have the value 0 x = x - winPageX; y = y - winPageY; } else if ( y < ( event.pageY - winPageY) || x < ( event.pageX - winPageX ) ) { // Some Android browsers have totally bogus values for clientX/Y // when scrolling/zooming a page. Detectable since clientX/clientY // should never be smaller than pageX/pageY minus page scroll x = event.pageX - winPageX; y = event.pageY - winPageY; } return { x: x, y: y }; }, start: function( event ) { var data = event.originalEvent.touches ? event.originalEvent.touches[ 0 ] : event, location = $.event.special.swipe.getLocation( data ); return { time: ( new Date() ).getTime(), coords: [ location.x, location.y ], origin: $( event.target ) }; }, stop: function( event ) { var data = event.originalEvent.touches ? event.originalEvent.touches[ 0 ] : event, location = $.event.special.swipe.getLocation( data ); return { time: ( new Date() ).getTime(), coords: [ location.x, location.y ] }; }, handleSwipe: function( start, stop, thisObject, origTarget ) { if ( stop.time - start.time < $.event.special.swipe.durationThreshold && Math.abs( start.coords[ 0 ] - stop.coords[ 0 ] ) > $.event.special.swipe.horizontalDistanceThreshold && Math.abs( start.coords[ 1 ] - stop.coords[ 1 ] ) < $.event.special.swipe.verticalDistanceThreshold ) { var direction = start.coords[0] > stop.coords[ 0 ] ? "swipeleft" : "swiperight"; triggerCustomEvent( thisObject, "swipe", $.Event( "swipe", { target: origTarget, swipestart: start, swipestop: stop }), true ); triggerCustomEvent( thisObject, direction,$.Event( direction, { target: origTarget, swipestart: start, swipestop: stop } ), true ); return true; } return false; }, // This serves as a flag to ensure that at most one swipe event event is // in work at any given time eventInProgress: false, setup: function() { var events, thisObject = this, $this = $( thisObject ), context = {}; // Retrieve the events data for this element and add the swipe context events = $.data( this, "mobile-events" ); if ( !events ) { events = { length: 0 }; $.data( this, "mobile-events", events ); } events.length++; events.swipe = context; context.start = function( event ) { // Bail if we're already working on a swipe event if ( $.event.special.swipe.eventInProgress ) { return; } $.event.special.swipe.eventInProgress = true; var stop, start = $.event.special.swipe.start( event ), origTarget = event.target, emitted = false; context.move = function( event ) { if ( !start || event.isDefaultPrevented() ) { return; } stop = $.event.special.swipe.stop( event ); if ( !emitted ) { emitted = $.event.special.swipe.handleSwipe( start, stop, thisObject, origTarget ); if ( emitted ) { // Reset the context to make way for the next swipe event $.event.special.swipe.eventInProgress = false; } } // prevent scrolling if ( Math.abs( start.coords[ 0 ] - stop.coords[ 0 ] ) > $.event.special.swipe.scrollSupressionThreshold ) { event.preventDefault(); } }; context.stop = function() { emitted = true; // Reset the context to make way for the next swipe event $.event.special.swipe.eventInProgress = false; $document.off( touchMoveEvent, context.move ); context.move = null; }; $document.on( touchMoveEvent, context.move ) .one( touchStopEvent, context.stop ); }; $this.on( touchStartEvent, context.start ); }, teardown: function() { var events, context; events = $.data( this, "mobile-events" ); if ( events ) { context = events.swipe; delete events.swipe; events.length--; if ( events.length === 0 ) { $.removeData( this, "mobile-events" ); } } if ( context ) { if ( context.start ) { $( this ).off( touchStartEvent, context.start ); } if ( context.move ) { $document.off( touchMoveEvent, context.move ); } if ( context.stop ) { $document.off( touchStopEvent, context.stop ); } } } }; $.each({ swipeleft: "swipe.left", swiperight: "swipe.right" }, function( event, sourceEvent ) { $.event.special[ event ] = { setup: function() { $( this ).bind( sourceEvent, $.noop ); }, teardown: function() { $( this ).unbind( sourceEvent ); } }; }); })( jQuery, this ); */