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80 lines
2.1 KiB
JavaScript
80 lines
2.1 KiB
JavaScript
define("dijit/form/_ListMouseMixin", [
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"dojo/_base/declare", // declare
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"dojo/mouse",
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"dojo/on",
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"dojo/touch",
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"./_ListBase"
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], function(declare, mouse, on, touch, _ListBase){
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// module:
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// dijit/form/_ListMouseMixin
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return declare( "dijit.form._ListMouseMixin", _ListBase, {
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// summary:
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// a Mixin to handle mouse or touch events for a focus-less menu
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// Abstract methods that must be defined externally:
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//
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// - onClick: item was chosen (mousedown somewhere on the menu and mouseup somewhere on the menu)
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// tags:
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// private
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postCreate: function(){
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this.inherited(arguments);
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this.own(on(this.domNode, touch.press, function(evt){ evt.preventDefault(); })); // prevent focus shift on list scrollbar press
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this._listConnect(touch.press, "_onMouseDown");
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this._listConnect(touch.release, "_onMouseUp");
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this._listConnect(mouse.enter, "_onMouseOver");
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this._listConnect(mouse.leave, "_onMouseOut");
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},
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_onMouseDown: function(/*Event*/ evt, /*DomNode*/ target){
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if(this._hoveredNode){
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this.onUnhover(this._hoveredNode);
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this._hoveredNode = null;
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}
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this._isDragging = true;
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this._setSelectedAttr(target);
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},
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_onMouseUp: function(/*Event*/ evt, /*DomNode*/ target){
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this._isDragging = false;
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var selectedNode = this.selected;
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var hoveredNode = this._hoveredNode;
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if(selectedNode && target == selectedNode){
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this.onClick(selectedNode);
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}else if(hoveredNode && target == hoveredNode){ // drag to select
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this._setSelectedAttr(hoveredNode);
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this.onClick(hoveredNode);
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}
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},
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_onMouseOut: function(/*Event*/ evt, /*DomNode*/ target){
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if(this._hoveredNode){
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this.onUnhover(this._hoveredNode);
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this._hoveredNode = null;
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}
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if(this._isDragging){
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this._cancelDrag = (new Date()).getTime() + 1000; // cancel in 1 second if no _onMouseOver fires
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}
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},
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_onMouseOver: function(/*Event*/ evt, /*DomNode*/ target){
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if(this._cancelDrag){
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var time = (new Date()).getTime();
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if(time > this._cancelDrag){
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this._isDragging = false;
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}
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this._cancelDrag = null;
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}
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this._hoveredNode = target;
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this.onHover(target);
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if(this._isDragging){
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this._setSelectedAttr(target);
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}
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}
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});
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});
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