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added touch support. Closes #12, closes #9

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This commit is contained in:
vieron
2012-08-05 12:39:51 +02:00
parent 0e942677ec
commit 1316a37e60
1 changed files with 18 additions and 9 deletions
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src/jquery.draggable.js
+18 -9
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@@ -20,7 +20,12 @@
};
var $window = $(window);
var isTouch = !!('ontouchstart' in window);
var pointer_events = {
start: isTouch ? 'touchstart' : 'mousedown.draggable',
move: isTouch ? 'touchmove' : 'mousemove.draggable',
end: isTouch ? 'touchend' : 'mouseup.draggable'
};
/**
* Basic drag implementation for DOM elements inside a container.
@@ -77,6 +82,11 @@
fn.get_mouse_pos = function(e) {
if (isTouch) {
var oe = e.originalEvent;
e = oe.touches.length ? oe.touches[0] : oe.changedTouches[0];
};
return {
left: e.clientX,
top: e.clientY
@@ -154,7 +164,7 @@
fn.drag_handler = function(e) {
var node = e.target.nodeName;
if (e.which !== 1) {
if (e.which !== 1 && !isTouch) {
return;
}
@@ -170,8 +180,7 @@
this.mouse_init_pos = this.get_mouse_pos(e);
this.offsetY = this.mouse_init_pos.top - this.el_init_pos.top;
this.$body.on('mousemove.draggable', function(mme){
this.$body.on(pointer_events.move, function(mme){
var mouse_actual_pos = self.get_mouse_pos(mme);
var diff_x = Math.abs(
mouse_actual_pos.left - self.mouse_init_pos.left);
@@ -279,12 +288,12 @@
fn.enable = function(){
this.$container.on('mousedown.draggable', this.options.items, $.proxy(
this.$container.on(pointer_events.start, this.options.items, $.proxy(
this.drag_handler, this));
this.$body.on('mouseup.draggable', $.proxy(function(e) {
this.$body.on(pointer_events.end, $.proxy(function(e) {
this.is_dragging = false;
this.$body.off('mousemove.draggable');
this.$body.off(pointer_events.move);
if (this.drag_start) {
this.on_dragstop(e);
}
@@ -293,8 +302,8 @@
fn.disable = function(){
this.$container.off('mousedown.draggable');
this.$body.off('mouseup.draggable');
this.$container.off(pointer_events.start);
this.$body.off(pointer_events.end);
};