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Made a drag implementation with jquery.grab #3

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Made a drag implementation with jquery.grab #3

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9638085
Touch changes (thanks Jussi!)
maboa Jan 25, 2011
0c53858
Tidying up
maboa Jan 25, 2011
541f43b
disabling tap-highlight
maboa Jan 25, 2011
258dc6a
correct version
maboa Jan 26, 2011
a482ce4
Fixed scrubbing
jussi-kalliokoski Jan 27, 2011
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70 changes: 26 additions & 44 deletions index.htm
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -4,15 +4,14 @@
* Authors :
* Mark Boas @maboa
* Silvia Benvenuti @aulentina
* Jussi Kalliokoski @quinirill
* Jussi Kalliokoski @quinnirill
*
* Inspired by :
* Neway @imneway http://imneway.net/ http://forrst.com/posts/Untitled-CPt
*
* Standing on the shoulders of :
* John Resig @jresig
* Mark Panaghiston @thepag
* Remy Sharp @rem
* Louis-Rémi Babé @Louis_Remi
*
* Dual Licensed GPL/MIT
Expand All @@ -22,13 +21,13 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width; initial-scale=1.5; user-scalable:no;">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width; initial-scale=1.5; user-scalable:no;">
<title>jPlayer - Circle Player</title>
<link rel="stylesheet" href="style.css">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery.rotate.js"></script>
<script type="text/javascript" src="js/jquery.mousehold.js"></script>
<script type="text/javascript" src="js/jquery.rotate.js"></script>
<script type="text/javascript" src="js/jquery.grab.js"></script>
<script type="text/javascript" src="js/jquery.jplayer.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
Expand Down Expand Up @@ -76,15 +75,15 @@
$('#progress2').css({rotate: '0deg'}).hide();
});

var dragging = false; // Indicates if the progressbar is being 'dragged'.
var dragging = false, dragPc, dragTimer; // Indicates if the progressbar is being 'dragged'.

var clickControl = $('.click-control');

function getArcPc(event) {
function getArcPc(pageX, pageY) {
var self = clickControl,
offset = self.offset(),
x = event.pageX - offset.left - self.width()/2,
y = event.pageY - offset.top - self.height()/2,
x = pageX - offset.left - self.width()/2,
y = pageY - offset.top - self.height()/2,
a = Math.atan2(y,x);

if (a > -1*Math.PI && a < -0.5*Math.PI) {
Expand All @@ -99,42 +98,25 @@
return pc;
}

function onMouseUp(event) {
var pc = getArcPc(event);
myPlayer.jPlayer("playHead", pc).jPlayer("play");
$(document).unbind('mouseup', onMouseUp);
dragging = false;

return false;
};

clickControl.mousedown(function(event){
if (event.preventDefault){
event.preventDefault();
}
function scrub(){
myPlayer.jPlayer("playHead", dragPc).jPlayer("play");
displayProgress(dragPc);
}

$(document).bind('mouseup', onMouseUp);
return false;
});

// Can't figure out how to pass event through to mousehold so I made it global

var moveEvent;

clickControl.mousemove(function(event){
moveEvent = event;
});

clickControl.mousehold(function(){
var pc = getArcPc(moveEvent);
dragging = true;

myPlayer.jPlayer("playHead", pc).jPlayer("play"); // This bit does the scrubbing
displayProgress(pc);
clickControl.grab({
onstart: function(){
dragPc = getArcPc(event.position.x, event.position.y);
dragTimer = setInterval(scrub, 250);
dragging = true;
}, onmove: function(event){
dragPc = getArcPc(event.position.x, event.position.y);
scrub();
}, onfinish: function(event){
dragging = false;
scrub();
clearInterval(dragTimer);
}
});

document.addEventListener('touchmove', function(e){e.preventDefault();}, false);

});
</script>
</head>
Expand Down
201 changes: 201 additions & 0 deletions js/jquery.grab.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,201 @@
/*
jQuery grab
Ported from Jin.js::gestures
Created by Jussi Kalliokoski
Licensed under MIT License.
*/


(function($){
var extend = $.extend,
mousedown = 'mousedown',
mousemove = 'mousemove',
mouseup = 'mouseup',
touchstart = 'touchstart',
touchmove = 'touchmove',
touchend = 'touchend',
touchcancel = 'touchcancel',
gesturestart = 'gesturestart',
gesturechange = 'gesturechange',
gestureend = 'gestureend',
gesturecancel = 'gesturecancel',
MozTouchDown = 'MozTouchDown',
MozTouchMove = 'MozTouchMove',
MozTouchUp = 'MozTouchUp',
mousewheel = 'mousewheel',
DOMMouseScroll = 'DOMMouseScroll';


function unbind(elem, type, func){
var fnc, i;
for (i=0; i<bind._binds.length; i++){
if (bind._binds[i].elem === elem && bind._binds[i].type === type && bind._binds[i].func === func){
if (document.addEventListener){
elem.removeEventListener(type, bind._binds[i].fnc, false);
} else {
elem.detachEvent('on'+type, bind._binds[i].fnc);
}
bind._binds.splice(i--, 1);
}
}
}

function bind(elem, type, func, pass){
var fnc, i;
if (bind[type]){
return bind[type].bind(elem, type, func, pass);
}
fnc = function(e){
if (!e){ // Fix some ie bugs...
e = window.event;
}
if (!e.stopPropagation){
e.stopPropagation = function(){ this.cancelBubble = true; };
}
e.data = pass;
func.call(elem, e);
};
if (document.addEventListener){
elem.addEventListener(type, fnc, false);
} else {
elem.attachEvent('on' + type, fnc);
}
bind._binds.push({elem: elem, type: type, func: func, fnc: fnc});
}

function grab(elem, options)
{
var data = {
move: {x: 0, y: 0},
offset: {x: 0, y: 0},
position: {x: 0, y: 0},
start: {x: 0, y: 0},
affects: document.documentElement,
stopPropagation: false,
preventDefault: true,
touch: true // Implementation unfinished, and doesn't support multitouch
};
extend(data, options);
data.element = elem;
bind(elem, mousedown, mouseDown, data);
if (data.touch){
bind(elem, touchstart, touchStart, data);
}
}
function ungrab(elem){
unbind(elem, mousedown, mousedown);
}
function mouseDown(e){
e.data.position.x = e.pageX;
e.data.position.y = e.pageY;
e.data.start.x = e.pageX;
e.data.start.y = e.pageY;
e.data.event = e;
if (e.data.onstart && e.data.onstart.call(e.data.element, e.data)){
return;
}
if (e.preventDefault && e.data.preventDefault){
e.preventDefault();
}
if (e.stopPropagation && e.data.stopPropagation){
e.stopPropagation();
}
bind(e.data.affects, mousemove, mouseMove, e.data);
bind(e.data.affects, mouseup, mouseUp, e.data);
}
function mouseMove(e){
if (e.preventDefault && e.data.preventDefault){
e.preventDefault();
}
if (e.stopPropagation && e.data.preventDefault){
e.stopPropagation();
}
e.data.move.x = e.pageX - e.data.position.x;
e.data.move.y = e.pageY - e.data.position.y;
e.data.position.x = e.pageX;
e.data.position.y = e.pageY;
e.data.offset.x = e.pageX - e.data.start.x;
e.data.offset.y = e.pageY - e.data.start.y;
e.data.event = e;
if (e.data.onmove){
e.data.onmove.call(e.data.element, e.data);
}
}
function mouseUp(e){
if (e.preventDefault && e.data.preventDefault){
e.preventDefault();
}
if (e.stopPropagation && e.data.stopPropagation){
e.stopPropagation();
}
unbind(e.data.affects, mousemove, mouseMove);
unbind(e.data.affects, mouseup, mouseUp);
e.data.event = e;
if (e.data.onfinish){
e.data.onfinish.call(e.data.element, e.data);
}
}
function touchStart(e){
e.data.position.x = e.touches[0].pageX;
e.data.position.y = e.touches[0].pageY;
e.data.start.x = e.touches[0].pageX;
e.data.start.y = e.touches[0].pageY;
e.data.event = e;
if (e.data.onstart && e.data.onstart.call(e.data.element, e.data)){
return;
}
if (e.preventDefault && e.data.preventDefault){
e.preventDefault();
}
if (e.stopPropagation && e.data.stopPropagation){
e.stopPropagation();
}
bind(e.data.affects, touchmove, touchMove, e.data);
bind(e.data.affects, touchend, touchEnd, e.data);
}
function touchMove(e){
if (e.preventDefault && e.data.preventDefault){
e.preventDefault();
}
if (e.stopPropagation && e.data.stopPropagation){
e.stopPropagation();
}
e.data.move.x = e.touches[0].pageX - e.data.position.x;
e.data.move.y = e.touches[0].pageY - e.data.position.y;
e.data.position.x = e.touches[0].pageX;
e.data.position.y = e.touches[0].pageY;
e.data.offset.x = e.touches[0].pageX - e.data.start.x;
e.data.offset.y = e.touches[0].pageY - e.data.start.y;
e.data.event = e;
if (e.data.onmove){
e.data.onmove.call(e.data.elem, e.data);
}
}
function touchEnd(e){
if (e.preventDefault && e.data.preventDefault){
e.preventDefault();
}
if (e.stopPropagation && e.data.stopPropagation){
e.stopPropagation();
}
unbind(e.data.affects, touchmove, touchMove);
unbind(e.data.affects, touchend, touchEnd);
e.data.event = e;
if (e.data.onfinish){
e.data.onfinish.call(e.data.element, e.data);
}
}

bind._binds = [];

$.fn.grab = function(a, b){
return this.each(function(){
return grab(this, a, b);
});
};
$.fn.ungrab = function(a){
return this.each(function(){
return ungrab(this, a);
});
};
})(jQuery);
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