X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/0494b8d9b9bb03ab6c22b34dae81261e3cd7e3e6..HEAD:/docs/source/DropZone.html diff --git a/docs/source/DropZone.html b/docs/source/DropZone.html index 6f0d73aa..0b2bbe0b 100644 --- a/docs/source/DropZone.html +++ b/docs/source/DropZone.html @@ -1,87 +1,93 @@ + - + The source code - - + + + + - -
/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-
/** - * @class Ext.dd.DropZone + +
/**
+ * @class Ext.dd.DropZone
  * @extends Ext.dd.DropTarget
- * 

This class provides a container DD instance that allows dropping on multiple child target nodes.

- *

By default, this class requires that child nodes accepting drop are registered with {@link Ext.dd.Registry}. - * However a simpler way to allow a DropZone to manage any number of target elements is to configure the - * DropZone with an implementation of {@link #getTargetFromEvent} which interrogates the passed - * mouse event to see if it has taken place within an element, or class of elements. This is easily done - * by using the event's {@link Ext.EventObject#getTarget getTarget} method to identify a node based on a - * {@link Ext.DomQuery} selector.

- *

Once the DropZone has detected through calling getTargetFromEvent, that the mouse is over - * a drop target, that target is passed as the first parameter to {@link #onNodeEnter}, {@link #onNodeOver}, - * {@link #onNodeOut}, {@link #onNodeDrop}. You may configure the instance of DropZone with implementations - * of these methods to provide application-specific behaviour for these events to update both - * application state, and UI state.

- *

For example to make a GridPanel a cooperating target with the example illustrated in - * {@link Ext.dd.DragZone DragZone}, the following technique might be used:


-myGridPanel.on('render', function() {
-    myGridPanel.dropZone = new Ext.dd.DropZone(myGridPanel.getView().scroller, {
 
-//      If the mouse is over a grid row, return that node. This is
-//      provided as the "target" parameter in all "onNodeXXXX" node event handling functions
-        getTargetFromEvent: function(e) {
-            return e.getTarget(myGridPanel.getView().rowSelector);
-        },
+This class provides a container DD instance that allows dropping on multiple child target nodes.
 
-//      On entry into a target node, highlight that node.
-        onNodeEnter : function(target, dd, e, data){ 
-            Ext.fly(target).addClass('my-row-highlight-class');
-        },
+By default, this class requires that child nodes accepting drop are registered with {@link Ext.dd.Registry}.
+However a simpler way to allow a DropZone to manage any number of target elements is to configure the
+DropZone with an implementation of {@link #getTargetFromEvent} which interrogates the passed
+mouse event to see if it has taken place within an element, or class of elements. This is easily done
+by using the event's {@link Ext.EventObject#getTarget getTarget} method to identify a node based on a
+{@link Ext.DomQuery} selector.
 
-//      On exit from a target node, unhighlight that node.
-        onNodeOut : function(target, dd, e, data){ 
-            Ext.fly(target).removeClass('my-row-highlight-class');
-        },
+Once the DropZone has detected through calling getTargetFromEvent, that the mouse is over
+a drop target, that target is passed as the first parameter to {@link #onNodeEnter}, {@link #onNodeOver},
+{@link #onNodeOut}, {@link #onNodeDrop}. You may configure the instance of DropZone with implementations
+of these methods to provide application-specific behaviour for these events to update both
+application state, and UI state.
 
-//      While over a target node, return the default drop allowed class which
-//      places a "tick" icon into the drag proxy.
-        onNodeOver : function(target, dd, e, data){ 
-            return Ext.dd.DropZone.prototype.dropAllowed;
-        },
+For example to make a GridPanel a cooperating target with the example illustrated in
+{@link Ext.dd.DragZone DragZone}, the following technique might be used:
 
-//      On node drop we can interrogate the target to find the underlying
-//      application object that is the real target of the dragged data.
-//      In this case, it is a Record in the GridPanel's Store.
-//      We can use the data set up by the DragZone's getDragData method to read
-//      any data we decided to attach in the DragZone's getDragData method.
-        onNodeDrop : function(target, dd, e, data){
-            var rowIndex = myGridPanel.getView().findRowIndex(target);
-            var r = myGridPanel.getStore().getAt(rowIndex);
-            Ext.Msg.alert('Drop gesture', 'Dropped Record id ' + data.draggedRecord.id +
-                ' on Record id ' + r.id);
-            return true;
-        }
-    });
-}
-
- * See the {@link Ext.dd.DragZone DragZone} documentation for details about building a DragZone which - * cooperates with this DropZone. - * @constructor - * @param {Mixed} el The container element - * @param {Object} config + myGridPanel.on('render', function() { + myGridPanel.dropZone = new Ext.dd.DropZone(myGridPanel.getView().scroller, { + + // If the mouse is over a grid row, return that node. This is + // provided as the "target" parameter in all "onNodeXXXX" node event handling functions + getTargetFromEvent: function(e) { + return e.getTarget(myGridPanel.getView().rowSelector); + }, + + // On entry into a target node, highlight that node. + onNodeEnter : function(target, dd, e, data){ + Ext.fly(target).addCls('my-row-highlight-class'); + }, + + // On exit from a target node, unhighlight that node. + onNodeOut : function(target, dd, e, data){ + Ext.fly(target).removeCls('my-row-highlight-class'); + }, + + // While over a target node, return the default drop allowed class which + // places a "tick" icon into the drag proxy. + onNodeOver : function(target, dd, e, data){ + return Ext.dd.DropZone.prototype.dropAllowed; + }, + + // On node drop we can interrogate the target to find the underlying + // application object that is the real target of the dragged data. + // In this case, it is a Record in the GridPanel's Store. + // We can use the data set up by the DragZone's getDragData method to read + // any data we decided to attach in the DragZone's getDragData method. + onNodeDrop : function(target, dd, e, data){ + var rowIndex = myGridPanel.getView().findRowIndex(target); + var r = myGridPanel.getStore().getAt(rowIndex); + Ext.Msg.alert('Drop gesture', 'Dropped Record id ' + data.draggedRecord.id + + ' on Record id ' + r.id); + return true; + } + }); + } + +See the {@link Ext.dd.DragZone DragZone} documentation for details about building a DragZone which +cooperates with this DropZone. + + * @markdown */ -Ext.dd.DropZone = function(el, config){ - Ext.dd.DropZone.superclass.constructor.call(this, el, config); -}; +Ext.define('Ext.dd.DropZone', { + extend: 'Ext.dd.DropTarget', + requires: ['Ext.dd.Registry'], -Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { -
/** - * Returns a custom data object associated with the DOM node that is the target of the event. By default + /** + * Returns a custom data object associated with the DOM node that is the target of the event. By default * this looks up the event target in the {@link Ext.dd.Registry}, although you can override this method to * provide your own custom lookup. * @param {Event} e The event @@ -91,8 +97,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return Ext.dd.Registry.getTargetFromEvent(e); }, -
/** - * Called when the DropZone determines that a {@link Ext.dd.DragSource} has entered a drop node + /** + * Called when the DropZone determines that a {@link Ext.dd.DragSource} has entered a drop node * that has either been registered or detected by a configured implementation of {@link #getTargetFromEvent}. * This method has no default implementation and should be overridden to provide * node-specific processing if necessary. @@ -106,8 +112,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { }, -
/** - * Called while the DropZone determines that a {@link Ext.dd.DragSource} is over a drop node + /** + * Called while the DropZone determines that a {@link Ext.dd.DragSource} is over a drop node * that has either been registered or detected by a configured implementation of {@link #getTargetFromEvent}. * The default implementation returns this.dropNotAllowed, so it should be * overridden to provide the proper feedback. @@ -123,8 +129,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return this.dropAllowed; }, -
/** - * Called when the DropZone determines that a {@link Ext.dd.DragSource} has been dragged out of + /** + * Called when the DropZone determines that a {@link Ext.dd.DragSource} has been dragged out of * the drop node without dropping. This method has no default implementation and should be overridden to provide * node-specific processing if necessary. * @param {Object} nodeData The custom data associated with the drop node (this is the same value returned from @@ -137,8 +143,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { }, -
/** - * Called when the DropZone determines that a {@link Ext.dd.DragSource} has been dropped onto + /** + * Called when the DropZone determines that a {@link Ext.dd.DragSource} has been dropped onto * the drop node. The default implementation returns false, so it should be overridden to provide the * appropriate processing of the drop event and return true so that the drag source's repair action does not run. * @param {Object} nodeData The custom data associated with the drop node (this is the same value returned from @@ -152,8 +158,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return false; }, -
/** - * Called while the DropZone determines that a {@link Ext.dd.DragSource} is being dragged over it, + /** + * Called while the DropZone determines that a {@link Ext.dd.DragSource} is being dragged over it, * but not over any of its registered drop nodes. The default implementation returns this.dropNotAllowed, so * it should be overridden to provide the proper feedback if necessary. * @param {Ext.dd.DragSource} source The drag source that was dragged over this drop zone @@ -166,8 +172,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return this.dropNotAllowed; }, -
/** - * Called when the DropZone determines that a {@link Ext.dd.DragSource} has been dropped on it, + /** + * Called when the DropZone determines that a {@link Ext.dd.DragSource} has been dropped on it, * but not on any of its registered drop nodes. The default implementation returns false, so it should be * overridden to provide the appropriate processing of the drop event if you need the drop zone itself to * be able to accept drops. It should return true when valid so that the drag source's repair action does not run. @@ -180,8 +186,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return false; }, -
/** - * The function a {@link Ext.dd.DragSource} calls once to notify this drop zone that the source is now over + /** + * The function a {@link Ext.dd.DragSource} calls once to notify this drop zone that the source is now over * the zone. The default implementation returns this.dropNotAllowed and expects that only registered drop * nodes can process drag drop operations, so if you need the drop zone itself to be able to process drops * you should override this method and provide a custom implementation. @@ -195,8 +201,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return this.dropNotAllowed; }, -
/** - * The function a {@link Ext.dd.DragSource} calls continuously while it is being dragged over the drop zone. + /** + * The function a {@link Ext.dd.DragSource} calls continuously while it is being dragged over the drop zone. * This method will be called on every mouse movement while the drag source is over the drop zone. * It will call {@link #onNodeOver} while the drag source is over a registered node, and will also automatically * delegate to the appropriate node-specific methods as necessary when the drag source enters and exits @@ -210,7 +216,7 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { */ notifyOver : function(dd, e, data){ var n = this.getTargetFromEvent(e); - if(!n){ // not over valid drop target + if(!n) { // not over valid drop target if(this.lastOverNode){ this.onNodeOut(this.lastOverNode, dd, e, data); this.lastOverNode = null; @@ -227,8 +233,8 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { return this.onNodeOver(n, dd, e, data); }, -
/** - * The function a {@link Ext.dd.DragSource} calls once to notify this drop zone that the source has been dragged + /** + * The function a {@link Ext.dd.DragSource} calls once to notify this drop zone that the source has been dragged * out of the zone without dropping. If the drag source is currently over a registered node, the notification * will be delegated to {@link #onNodeOut} for node-specific handling, otherwise it will be ignored. * @param {Ext.dd.DragSource} source The drag source that was dragged over this drop target @@ -242,15 +248,15 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { } }, -
/** - * The function a {@link Ext.dd.DragSource} calls once to notify this drop zone that the dragged item has + /** + * The function a {@link Ext.dd.DragSource} calls once to notify this drop zone that the dragged item has * been dropped on it. The drag zone will look up the target node based on the event passed in, and if there * is a node registered for that event, it will delegate to {@link #onNodeDrop} for node-specific handling, * otherwise it will call {@link #onContainerDrop}. * @param {Ext.dd.DragSource} source The drag source that was dragged over this drop zone * @param {Event} e The event * @param {Object} data An object containing arbitrary data supplied by the drag source - * @return {Boolean} True if the drop was valid, else false + * @return {Boolean} False if the drop was invalid. */ notifyDrop : function(dd, e, data){ if(this.lastOverNode){ @@ -264,9 +270,9 @@ Ext.extend(Ext.dd.DropZone, Ext.dd.DropTarget, { }, // private - triggerCacheRefresh : function(){ + triggerCacheRefresh : function() { Ext.dd.DDM.refreshCache(this.groups); - } -});
+ } +});
- \ No newline at end of file +