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65 lines
2.5 KiB
JavaScript
65 lines
2.5 KiB
JavaScript
// kill drag drop dependency
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if(YAHOO.util.DragDrop){
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/**
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* @class YAHOO.ext.dd.DragZone
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* @extends YAHOO.ext.dd.Source
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* This class provides a container DD instance that proxies for multiple child node sources.<br />
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* By default, this class requires that draggable child nodes are registered with
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* {@link YAHOO.ext.dd.Registry}.
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* @cfg {Boolean} containerScroll True to register this container with the Scrollmanager
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* for auto scrolling during drag operations.
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* @constructor
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* @param {String/HTMLElement/Element} el The container element
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* @param {Object} config
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*/
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YAHOO.ext.dd.DragZone = function(el, config){
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YAHOO.ext.dd.DragZone.superclass.constructor.call(this, el, config);
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if(this.containerScroll){
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YAHOO.ext.dd.ScrollManager.register(this.el);
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}
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};
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YAHOO.extendX(YAHOO.ext.dd.DragZone, YAHOO.ext.dd.DragSource, {
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/**
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* Called when a mousedown occurs in this container. Looks in {@link YAHOO.ext.dd.Registry}
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* for a valid target to drag based on the mouse down. Override this method
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* to provide your own lookup logic (e.g. finding a child by class name). Make sure your returned
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* object has a "ddel" attribute (with an HTML Element) for other functions to work.
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* @param {EventObject} e The mouse down event
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* @return {Object} The dragData
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*/
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getDragData : function(e){
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return YAHOO.ext.dd.Registry.getHandleFromEvent(e);
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},
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/**
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* Called once drag threshold has been reached to initialize the proxy element. By default, it clones the
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* this.dragData.ddel
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* @param {EventObject} e The current event
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* @return {Boolean} true to continue the drag, false to cancel
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*/
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onInitDrag : function(e){
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this.proxy.update(this.dragData.ddel.cloneNode(true));
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return true;
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},
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/**
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* Called after a repair of an invalid drop. By default, highlights this.dragData.ddel
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*/
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afterRepair : function(){
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YAHOO.ext.Element.fly(this.dragData.ddel).highlight(this.hlColor || 'c3daf9');
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this.dragging = false;
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},
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/**
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* Called before a repair of an invalid drop to get the XY to animate to. By default returns
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* the XY of this.dragData.ddel
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* @param {EventObject} e The mouse up event
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* @return {Array} The xy location (e.g. [100, 200])
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*/
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getRepairXY : function(e){
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return YAHOO.ext.Element.fly(this.dragData.ddel).getXY();
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}
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});
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}
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