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+<html><head><title>/home/alan/gitlive/roojs1/Roo/dd/DropTarget.js</title><link rel="stylesheet" type="text/css" href="../../css/highlight-js.css"/></head><body class="highlightpage"><code class="jsdoc-pretty"><span class="jsdoc-comment">/*
+ * Based on:
+ * Ext JS Library 1.1.1
+ * Copyright(c) 2006-2007, Ext JS, LLC.
+ *
+ * Originally Released Under LGPL - original licence link has changed is not relivant.
+ *
+ * Fork - LGPL
+ * <script type="text/javascript">
+ */
+
+
+/**
+ * @class Roo.dd.DropTarget
+ * @extends Roo.dd.DDTarget
+ * A simple class that provides the basic implementation needed to make any element a drop target that can have
+ * draggable items dropped onto it. The drop has no effect until an implementation of notifyDrop is provided.
+ * @constructor
+ * @param {String/HTMLElement/Element} el The container element
+ * @param {Object} config
+ */
+</span><span class="jsdoc-var">Roo.dd.DropTarget </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">el</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">config</span><span class="jsdoc-syntax">){
+ </span><span class="jsdoc-var">this.el </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">Roo.get</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">el</span><span class="jsdoc-syntax">);
+
+ </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">listeners </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">; ;
+ </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">config </span><span class="jsdoc-syntax">&& </span><span class="jsdoc-var">config.listeners</span><span class="jsdoc-syntax">) {
+ </span><span class="jsdoc-var">listeners</span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">config.listeners</span><span class="jsdoc-syntax">;
+ </span><span class="jsdoc-keyword">delete </span><span class="jsdoc-var">config.listeners</span><span class="jsdoc-syntax">;
+ }
+ </span><span class="jsdoc-var">Roo.apply</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">config</span><span class="jsdoc-syntax">);
+
+ </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.containerScroll</span><span class="jsdoc-syntax">){
+ </span><span class="jsdoc-var">Roo.dd.ScrollManager.register</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.el</span><span class="jsdoc-syntax">);
+ }
+ </span><span class="jsdoc-var">this.addEvents</span><span class="jsdoc-syntax">( {
+ </span><span class="jsdoc-comment">/**
+ * @scope Roo.dd.DropTarget
+ */
+
+ /**
+ * @event enter
+ * The function a {@link Roo.dd.DragSource} calls once to notify this drop target that the source is now over the
+ * target. This default implementation adds the CSS class specified by overClass (if any) to the drop element
+ * and returns the dropAllowed config value. This method should be overridden if drop validation is required.
+ *
+ * IMPORTANT : it should set this.overClass and this.dropAllowed
+ *
+ * @param {Roo.dd.DragSource} source The drag source that was dragged over this drop target
+ * @param {Event} e The event
+ * @param {Object} data An object containing arbitrary data supplied by the drag source
+ */
+ </span><span class="jsdoc-string">"enter" </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
+
+ </span><span class="jsdoc-comment">/**
+ * @event over
+ * The function a {@link Roo.dd.DragSource} calls continuously while it is being dragged over the target.
+ * This method will be called on every mouse movement while the drag source is over the drop target.
+ * This default implementation simply returns the dropAllowed config value.
+ *
+ * IMPORTANT : it should set this.dropAllowed
+ *
+ * @param {Roo.dd.DragSource} source The drag source that was dragged over this drop target
+ * @param {Event} e The event
+ * @param {Object} data An object containing arbitrary data supplied by the drag source
+
+ */
+ </span><span class="jsdoc-string">"over" </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-comment">/**
+ * @event out
+ * The function a {@link Roo.dd.DragSource} calls once to notify this drop target that the source has been dragged
+ * out of the target without dropping. This default implementation simply removes the CSS class specified by
+ * overClass (if any) from the drop element.
+ *
+ * @param {Roo.dd.DragSource} source The drag source that was dragged over this drop target
+ * @param {Event} e The event
+ * @param {Object} data An object containing arbitrary data supplied by the drag source
+ */
+ </span><span class="jsdoc-string">"out" </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
+
+ </span><span class="jsdoc-comment">/**
+ * @event drop
+ * The function a {@link Roo.dd.DragSource} calls once to notify this drop target that the dragged item has
+ * been dropped on it. This method has no default implementation and returns false, so you must provide an
+ * implementation that does something to process the drop event and returns true so that the drag source's
+ * repair action does not run.
+ *
+ * IMPORTANT : it should set this.success
+ *
+ * @param {Roo.dd.DragSource} source The drag source that was dragged over this drop target
+ * @param {Event} e The event
+ * @param {Object} data An object containing arbitrary data supplied by the drag source
+ */
+ </span><span class="jsdoc-string">"drop" </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true
+ </span><span class="jsdoc-syntax">});
+
+
+ </span><span class="jsdoc-var">Roo.dd.DropTarget.superclass.constructor.call</span><span class="jsdoc-syntax">( </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-var">this.el.dom</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-var">this.ddGroup </span><span class="jsdoc-syntax">|| </span><span class="jsdoc-var">this.group</span><span class="jsdoc-syntax">,
+ {
+ </span><span class="jsdoc-var">isTarget</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-var">listeners </span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">listeners </span><span class="jsdoc-syntax">|| {}
+
+
+ }
+ );
+
+};
+
+</span><span class="jsdoc-var">Roo.extend</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">Roo.dd.DropTarget</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">Roo.dd.DDTarget</span><span class="jsdoc-syntax">, {
+ </span><span class="jsdoc-comment">/**
+ * @cfg {String} overClass
+ * The CSS class applied to the drop target element while the drag source is over it (defaults to "").
+ */
+ /**
+ * @cfg {String} ddGroup
+ * The drag drop group to handle drop events for
+ */
+
+ /**
+ * @cfg {String} dropAllowed
+ * The CSS class returned to the drag source when drop is allowed (defaults to "x-dd-drop-ok").
+ */
+ </span><span class="jsdoc-var">dropAllowed </span><span class="jsdoc-syntax">: </span><span class="jsdoc-string">"x-dd-drop-ok"</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-comment">/**
+ * @cfg {String} dropNotAllowed
+ * The CSS class returned to the drag source when drop is not allowed (defaults to "x-dd-drop-nodrop").
+ */
+ </span><span class="jsdoc-var">dropNotAllowed </span><span class="jsdoc-syntax">: </span><span class="jsdoc-string">"x-dd-drop-nodrop"</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-comment">/**
+ * @cfg {boolean} success
+ * set this after drop listener..
+ */
+ </span><span class="jsdoc-var">success </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-comment">/**
+ * @cfg {boolean|String} valid true/false or string (ok-add/ok-sub/ok/nodrop)
+ * if the drop point is valid for over/enter..
+ */
+ </span><span class="jsdoc-var">valid </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">,
+ </span><span class="jsdoc-comment">// private
+ </span><span class="jsdoc-var">isTarget </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
+
+ </span><span class="jsdoc-comment">// private
+ </span><span class="jsdoc-var">isNotifyTarget </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
+
+ </span><span class="jsdoc-comment">/**
+ * @hide
+ */
+ </span><span class="jsdoc-var">notifyEnter </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">)
+ {
+ </span><span class="jsdoc-var">this.valid </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">;
+ </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'enter'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">);
+ </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.overClass</span><span class="jsdoc-syntax">){
+ </span><span class="jsdoc-var">this.el.addClass</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.overClass</span><span class="jsdoc-syntax">);
+ }
+ </span><span class="jsdoc-keyword">return typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.valid</span><span class="jsdoc-syntax">) == </span><span class="jsdoc-string">'string' </span><span class="jsdoc-syntax">? </span><span class="jsdoc-string">'x-dd-drop-' </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">this.valid </span><span class="jsdoc-syntax">: (
+ </span><span class="jsdoc-var">this.valid </span><span class="jsdoc-syntax">? </span><span class="jsdoc-var">this.dropAllowed </span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.dropNotAllowed
+ </span><span class="jsdoc-syntax">);
+ },
+
+ </span><span class="jsdoc-comment">/**
+ * @hide
+ */
+ </span><span class="jsdoc-var">notifyOver </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">)
+ {
+ </span><span class="jsdoc-var">this.valid </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">;
+ </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'over'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">);
+ </span><span class="jsdoc-keyword">return typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.valid</span><span class="jsdoc-syntax">) == </span><span class="jsdoc-string">'string' </span><span class="jsdoc-syntax">? </span><span class="jsdoc-string">'x-dd-drop-' </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">this.valid </span><span class="jsdoc-syntax">: (
+ </span><span class="jsdoc-var">this.valid </span><span class="jsdoc-syntax">? </span><span class="jsdoc-var">this.dropAllowed </span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.dropNotAllowed
+ </span><span class="jsdoc-syntax">);
+ },
+
+ </span><span class="jsdoc-comment">/**
+ * @hide
+ */
+ </span><span class="jsdoc-var">notifyOut </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">)
+ {
+ </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'out'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">);
+ </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.overClass</span><span class="jsdoc-syntax">){
+ </span><span class="jsdoc-var">this.el.removeClass</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.overClass</span><span class="jsdoc-syntax">);
+ }
+ },
+
+ </span><span class="jsdoc-comment">/**
+ * @hide
+ */
+ </span><span class="jsdoc-var">notifyDrop </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">)
+ {
+ </span><span class="jsdoc-var">this.success </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">;
+ </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'drop'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">dd</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">data</span><span class="jsdoc-syntax">);
+ </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">this.success</span><span class="jsdoc-syntax">;
+ }
+});</span></code></body></html>
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