From c94fb32c7a3c28b18a27460aa2447eeec1fac1de Mon Sep 17 00:00:00 2001 From: Pascal Szewczyk Date: Mon, 18 Jul 2016 23:23:54 +0200 Subject: uikit added --- js/core/touch.js | 175 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 175 insertions(+) create mode 100755 js/core/touch.js (limited to 'js/core/touch.js') diff --git a/js/core/touch.js b/js/core/touch.js new file mode 100755 index 0000000..43577d8 --- /dev/null +++ b/js/core/touch.js @@ -0,0 +1,175 @@ +/*! UIkit 2.26.4 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */ +// Based on Zeptos touch.js +// https://raw.github.com/madrobby/zepto/master/src/touch.js +// Zepto.js may be freely distributed under the MIT license. + +;(function($){ + + if ($.fn.swipeLeft) { + return; + } + + + var touch = {}, touchTimeout, tapTimeout, swipeTimeout, longTapTimeout, longTapDelay = 750, gesture; + + function swipeDirection(x1, x2, y1, y2) { + return Math.abs(x1 - x2) >= Math.abs(y1 - y2) ? (x1 - x2 > 0 ? 'Left' : 'Right') : (y1 - y2 > 0 ? 'Up' : 'Down'); + } + + function longTap() { + longTapTimeout = null; + if (touch.last) { + if ( touch.el !== undefined ) touch.el.trigger('longTap'); + touch = {}; + } + } + + function cancelLongTap() { + if (longTapTimeout) clearTimeout(longTapTimeout); + longTapTimeout = null; + } + + function cancelAll() { + if (touchTimeout) clearTimeout(touchTimeout); + if (tapTimeout) clearTimeout(tapTimeout); + if (swipeTimeout) clearTimeout(swipeTimeout); + if (longTapTimeout) clearTimeout(longTapTimeout); + touchTimeout = tapTimeout = swipeTimeout = longTapTimeout = null; + touch = {}; + } + + function isPrimaryTouch(event){ + return event.pointerType == event.MSPOINTER_TYPE_TOUCH && event.isPrimary; + } + + $(function(){ + var now, delta, deltaX = 0, deltaY = 0, firstTouch; + + if ('MSGesture' in window) { + gesture = new MSGesture(); + gesture.target = document.body; + } + + $(document) + .on('MSGestureEnd gestureend', function(e){ + + var swipeDirectionFromVelocity = e.originalEvent.velocityX > 1 ? 'Right' : e.originalEvent.velocityX < -1 ? 'Left' : e.originalEvent.velocityY > 1 ? 'Down' : e.originalEvent.velocityY < -1 ? 'Up' : null; + + if (swipeDirectionFromVelocity && touch.el !== undefined) { + touch.el.trigger('swipe'); + touch.el.trigger('swipe'+ swipeDirectionFromVelocity); + } + }) + // MSPointerDown: for IE10 + // pointerdown: for IE11 + .on('touchstart MSPointerDown pointerdown', function(e){ + + if(e.type == 'MSPointerDown' && !isPrimaryTouch(e.originalEvent)) return; + + firstTouch = (e.type == 'MSPointerDown' || e.type == 'pointerdown') ? e : e.originalEvent.touches[0]; + + now = Date.now(); + delta = now - (touch.last || now); + touch.el = $('tagName' in firstTouch.target ? firstTouch.target : firstTouch.target.parentNode); + + if(touchTimeout) clearTimeout(touchTimeout); + + touch.x1 = firstTouch.pageX; + touch.y1 = firstTouch.pageY; + + if (delta > 0 && delta <= 250) touch.isDoubleTap = true; + + touch.last = now; + longTapTimeout = setTimeout(longTap, longTapDelay); + + // adds the current touch contact for IE gesture recognition + if (gesture && ( e.type == 'MSPointerDown' || e.type == 'pointerdown' || e.type == 'touchstart' ) ) { + gesture.addPointer(e.originalEvent.pointerId); + } + + }) + // MSPointerMove: for IE10 + // pointermove: for IE11 + .on('touchmove MSPointerMove pointermove', function(e){ + + if (e.type == 'MSPointerMove' && !isPrimaryTouch(e.originalEvent)) return; + + firstTouch = (e.type == 'MSPointerMove' || e.type == 'pointermove') ? e : e.originalEvent.touches[0]; + + cancelLongTap(); + touch.x2 = firstTouch.pageX; + touch.y2 = firstTouch.pageY; + + deltaX += Math.abs(touch.x1 - touch.x2); + deltaY += Math.abs(touch.y1 - touch.y2); + }) + // MSPointerUp: for IE10 + // pointerup: for IE11 + .on('touchend MSPointerUp pointerup', function(e){ + + if (e.type == 'MSPointerUp' && !isPrimaryTouch(e.originalEvent)) return; + + cancelLongTap(); + + // swipe + if ((touch.x2 && Math.abs(touch.x1 - touch.x2) > 30) || (touch.y2 && Math.abs(touch.y1 - touch.y2) > 30)){ + + swipeTimeout = setTimeout(function() { + if ( touch.el !== undefined ) { + touch.el.trigger('swipe'); + touch.el.trigger('swipe' + (swipeDirection(touch.x1, touch.x2, touch.y1, touch.y2))); + } + touch = {}; + }, 0); + + // normal tap + } else if ('last' in touch) { + + // don't fire tap when delta position changed by more than 30 pixels, + // for instance when moving to a point and back to origin + if (isNaN(deltaX) || (deltaX < 30 && deltaY < 30)) { + // delay by one tick so we can cancel the 'tap' event if 'scroll' fires + // ('tap' fires before 'scroll') + tapTimeout = setTimeout(function() { + + // trigger universal 'tap' with the option to cancelTouch() + // (cancelTouch cancels processing of single vs double taps for faster 'tap' response) + var event = $.Event('tap'); + event.cancelTouch = cancelAll; + if ( touch.el !== undefined ) touch.el.trigger(event); + + // trigger double tap immediately + if (touch.isDoubleTap) { + if ( touch.el !== undefined ) touch.el.trigger('doubleTap'); + touch = {}; + } + + // trigger single tap after 250ms of inactivity + else { + touchTimeout = setTimeout(function(){ + touchTimeout = null; + if ( touch.el !== undefined ) touch.el.trigger('singleTap'); + touch = {}; + }, 250); + } + }, 0); + } else { + touch = {}; + } + deltaX = deltaY = 0; + } + }) + // when the browser window loses focus, + // for example when a modal dialog is shown, + // cancel all ongoing events + .on('touchcancel MSPointerCancel', cancelAll); + + // scrolling the window indicates intention of the user + // to scroll, not tap or swipe, so cancel all ongoing events + $(window).on('scroll', cancelAll); + }); + + ['swipe', 'swipeLeft', 'swipeRight', 'swipeUp', 'swipeDown', 'doubleTap', 'tap', 'singleTap', 'longTap'].forEach(function(eventName){ + $.fn[eventName] = function(callback){ return $(this).on(eventName, callback); }; + }); +})(jQuery); -- cgit v1.2.3