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Implement Item#onClick and #onDoubleClick.

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This commit is contained in:
Jürg Lehni 2011-11-16 23:18:27 +01:00
parent b3bf57c8e9
commit d066ad775d
1 changed files with 18 additions and 3 deletions
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21
src/ui/CanvasView.js
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@ -84,15 +84,30 @@ var CanvasView = View.extend(/** @lends CanvasView# */{
} }
} }
var overItem = null; var downPoint,
downItem,
overItem,
doubleClick,
clickTime;
return { return {
_onMouseDown: function(event, point) { _onMouseDown: function(event, point) {
handleEvent(this, 'mousedown', event, point); var item = handleEvent(this, 'mousedown', event, point);
// See if we're clicking again on the same item, within the
// double-click time. Firefox uses 300ms as the max time difference:
doubleClick = downItem == item && Date.now() - clickTime < 300;
downItem = item;
downPoint = point;
}, },
_onMouseUp: function(event, point) { _onMouseUp: function(event, point) {
handleEvent(this, 'mouseup', event, point); var item = handleEvent(this, 'mouseup', event, point);
if (item == downItem) {
clickTime = Date.now();
new MouseEvent(doubleClick ? 'doubleclick' : 'click', downPoint,
overItem, event)._call();
doubleClick = false;
}
}, },
_onMouseMove: function(event, point) { _onMouseMove: function(event, point) {