author | Clipperz <info@clipperz.com> | 2013-01-09 09:03:53 (UTC) |
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committer | Clipperz <info@clipperz.com> | 2013-01-09 09:03:53 (UTC) |
commit | 644891059e1f37d0748bc34b9ca78c05fa748214 (patch) (side-by-side diff) | |
tree | a746ee125d503088dc53dac823474e4295560947 /frontend/gamma/js/Zepto/touch.js | |
parent | a9974c63bdcef65f009420dce095d1e39da7e3b8 (diff) | |
download | clipperz-644891059e1f37d0748bc34b9ca78c05fa748214.zip clipperz-644891059e1f37d0748bc34b9ca78c05fa748214.tar.gz clipperz-644891059e1f37d0748bc34b9ca78c05fa748214.tar.bz2 |
Added JQTouch and Zepto libraries
JQTouch and Zepto are tentatively used for the mobile version of Clipperz.
No final commitment has been made, though.
Diffstat (limited to 'frontend/gamma/js/Zepto/touch.js') (more/less context) (show whitespace changes)
-rw-r--r-- | frontend/gamma/js/Zepto/touch.js | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/frontend/gamma/js/Zepto/touch.js b/frontend/gamma/js/Zepto/touch.js new file mode 100644 index 0000000..af109b9 --- a/dev/null +++ b/frontend/gamma/js/Zepto/touch.js @@ -0,0 +1,113 @@ +// Zepto.js +// (c) 2010-2012 Thomas Fuchs +// Zepto.js may be freely distributed under the MIT license. + +;(function($){ + var touch = {}, + touchTimeout, tapTimeout, swipeTimeout, + longTapDelay = 750, longTapTimeout + + function parentIfText(node) { + return 'tagName' in node ? node : node.parentNode + } + + function swipeDirection(x1, x2, y1, y2) { + var xDelta = Math.abs(x1 - x2), yDelta = Math.abs(y1 - y2) + return xDelta >= yDelta ? (x1 - x2 > 0 ? 'Left' : 'Right') : (y1 - y2 > 0 ? 'Up' : 'Down') + } + + function longTap() { + longTapTimeout = null + if (touch.last) { + 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 = {} + } + + $(document).ready(function(){ + var now, delta + + $(document.body) + .bind('touchstart', function(e){ + now = Date.now() + delta = now - (touch.last || now) + touch.el = $(parentIfText(e.touches[0].target)) + touchTimeout && clearTimeout(touchTimeout) + touch.x1 = e.touches[0].pageX + touch.y1 = e.touches[0].pageY + if (delta > 0 && delta <= 250) touch.isDoubleTap = true + touch.last = now + longTapTimeout = setTimeout(longTap, longTapDelay) + }) + .bind('touchmove', function(e){ + cancelLongTap() + touch.x2 = e.touches[0].pageX + touch.y2 = e.touches[0].pageY + }) + .bind('touchend', function(e){ + cancelLongTap() + + // swipe + if ((touch.x2 && Math.abs(touch.x1 - touch.x2) > 30) || + (touch.y2 && Math.abs(touch.y1 - touch.y2) > 30)) + + swipeTimeout = setTimeout(function() { + 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) + + // 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 + touch.el.trigger(event) + + // trigger double tap immediately + if (touch.isDoubleTap) { + touch.el.trigger('doubleTap') + touch = {} + } + + // trigger single tap after 250ms of inactivity + else { + touchTimeout = setTimeout(function(){ + touchTimeout = null + touch.el.trigger('singleTap') + touch = {} + }, 250) + } + + }, 0) + + }) + .bind('touchcancel', cancelAll) + + $(window).bind('scroll', cancelAll) + }) + + ;['swipe', 'swipeLeft', 'swipeRight', 'swipeUp', 'swipeDown', 'doubleTap', 'tap', 'singleTap', 'longTap'].forEach(function(m){ + $.fn[m] = function(callback){ return this.bind(m, callback) } + }) +})(Zepto) |