-
Notifications
You must be signed in to change notification settings - Fork 117
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Use mx drag beads for mx components - multi selection
- Loading branch information
Showing
4 changed files
with
799 additions
and
10 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
300 changes: 300 additions & 0 deletions
300
...s/projects/MXRoyale/src/main/royale/mx/controls/beads/TreeMultiSelectionDragSourceBead.as
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,300 @@ | ||
|
|
||
| //////////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // Licensed to the Apache Software Foundation (ASF) under one or more | ||
| // contributor license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright ownership. | ||
| // The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| // (the "License"); you may not use this file except in compliance with | ||
| // the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| //////////////////////////////////////////////////////////////////////////////// | ||
| package mx.controls.beads | ||
| { | ||
| import org.apache.royale.core.IBead; | ||
| import org.apache.royale.core.IChild; | ||
| import org.apache.royale.core.IDataProviderModel; | ||
| import org.apache.royale.core.IDragInitiator; | ||
| import org.apache.royale.core.IIndexedItemRenderer; | ||
| import org.apache.royale.core.IItemRenderer; | ||
| import org.apache.royale.core.IMultiSelectionModel; | ||
| import org.apache.royale.core.IStrand; | ||
| import org.apache.royale.events.DragEvent; | ||
| import org.apache.royale.events.Event; | ||
| import org.apache.royale.events.EventDispatcher; | ||
| import org.apache.royale.events.IEventDispatcher; | ||
| import org.apache.royale.html.beads.controllers.DragMouseController; | ||
| import org.apache.royale.utils.getParentOrSelfByType; | ||
| import org.apache.royale.html.util.getModelByType; | ||
| import mx.collections.IList; | ||
| import org.apache.royale.utils.sendStrandEvent; | ||
| import org.apache.royale.events.ValueEvent; | ||
|
|
||
| /** | ||
| * The start event is dispatched when a DragStart event happens. The DragEvent.dragSource | ||
| * is set before this event is dispatched. A listener for this event can then decide if | ||
| * if the drag-drop action should continue or not. If not, the event should be cancelled. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| [Event(name="start", type="org.apache.royale.events.Event")] | ||
|
|
||
| /** | ||
| * The accept event is dispatched when the drop happens but just before the data being | ||
| * dragged as been incorporated into the drop target's data source. Cancelling this event | ||
| * prevents that from happening. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| [Event(name="accept", type="org.apache.royale.events.Event")] | ||
|
|
||
| /** | ||
| * The complete event is dispatched when the entire drag-and-drop operation has completed | ||
| * from the drag source's perspective. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| [Event(name="complete", type="org.apache.royale.events.Event")] | ||
|
|
||
| /** | ||
| * The dragMove event is dispatched while the drag action moves. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| [Event(name="dragMove", type="org.apache.royale.events.DragEvent")] | ||
|
|
||
| /** | ||
| * The dragEnd event is dispatched while the drag action stops. | ||
| * This is dispatched even when the drag event is aborted. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| [Event(name="dragEnd", type="org.apache.royale.events.DragEvent")] | ||
| /** | ||
| * The TreeMultiSelectionDragSourceBead brings drag capability to multi-selection Tree components. | ||
| * By adding this bead, a user can drag a row of the Tree to a new location within the tree. This bead | ||
| * should be used in conjunction with TreeSingleSelectionDropTargetBead. | ||
| * | ||
| * This bead adds a new event to the strand, "dragImageNeeded", which is dispatched on the strand | ||
| * just prior to the dragImage's appearance. An event listener can create its own dragImage if the | ||
| * default, taken from the data item, is not suitable. | ||
| * | ||
| * @see org.apache.royale.html.beads.SingleSelectionDropTargetBead. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| public class TreeMultiSelectionDragSourceBead extends EventDispatcher implements IBead, IDragInitiator | ||
| { | ||
| /** | ||
| * Constructor | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| public function TreeMultiSelectionDragSourceBead() | ||
| { | ||
| super(); | ||
| } | ||
|
|
||
| private var _strand:IStrand; | ||
| private var _dragController:DragMouseController; | ||
| private var continueDragOperation:Boolean = true; | ||
|
|
||
| private var _dragType:String = "move"; | ||
|
|
||
| /** | ||
| * The type of drag and drop operation: move or copy. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| public function get dragType():String | ||
| { | ||
| return _dragType; | ||
| } | ||
| public function set dragType(value:String):void | ||
| { | ||
| _dragType = value; | ||
| } | ||
|
|
||
| private var _approveDragStart:Function; | ||
| /** | ||
| * Provides the ability to approve (or prevent) a mouseDown event being considered | ||
| * as the start of a drag sequence. This can be useful for renderers with some controls | ||
| * that must remain interactive, so that dragging is only supported by other parts of the renderer. | ||
| * The function should return true for the mouseDown event to be approved as the possible start | ||
| * of a drag sequence | ||
| * | ||
| * @param value a function that takes a MouseEvent as a parameter and returns a Boolean value that | ||
| * pre-approves a mouseDown event (or not) | ||
| */ | ||
| public function set approveDragStart(value:Function):void{ | ||
| if (_dragController) { | ||
| _dragController.approveDragStart=value | ||
| } else { | ||
| _approveDragStart = value; | ||
| } | ||
| } | ||
| public function get approveDragStart():Function{ | ||
| return _dragController? _dragController.approveDragStart :_approveDragStart; | ||
| } | ||
|
|
||
| private var _explicitTopmostDispatcher:IEventDispatcher; | ||
| /** | ||
| * Provides the ability to specify a non-default topMostEventDispatcher. | ||
| * A Basic Royale application looks on the document.body tag for an associated Royale EventDispatcher instance, | ||
| * and the default behaviour is to consider that to be valid. | ||
| * Other Application types may not be associated with the body tag, so this provides a way to explicitly specify | ||
| * the top level instance. | ||
| * | ||
| */ | ||
| public function set explicitTopmostDispatcher(value:IEventDispatcher):void{ | ||
| if (_dragController) { | ||
| _dragController.topMostDispatcher = value; | ||
| _explicitTopmostDispatcher = null; | ||
| } | ||
| else _explicitTopmostDispatcher = value; | ||
| } | ||
| public function get explicitTopmostDispatcher():IEventDispatcher{ | ||
| return _dragController? _dragController.topMostDispatcher :_explicitTopmostDispatcher; | ||
| } | ||
|
|
||
| /** | ||
| * @private | ||
| */ | ||
| public function set strand(value:IStrand):void | ||
| { | ||
| _strand = value; | ||
| _dragController = new DragMouseController(); | ||
| _dragController.topMostDispatcher = _explicitTopmostDispatcher; | ||
| _dragController.approveDragStart = _approveDragStart; | ||
| _strand.addBead(_dragController); | ||
|
|
||
| _dragController.addEventListener(DragEvent.DRAG_START, handleDragStart); | ||
| _dragController.addEventListener(DragEvent.DRAG_MOVE, handleDragMove); | ||
| _dragController.addEventListener(DragEvent.DRAG_END, handleDragEnd); | ||
| } | ||
|
|
||
|
|
||
| /** | ||
| * @private | ||
| * @royaleignorecoercion org.apache.royale.core.IChild | ||
| * @royaleignorecoercion org.apache.royale.core.IIndexedItemRenderer | ||
| */ | ||
| private function handleDragStart(event:DragEvent):void | ||
| { | ||
| //trace("TreeMultiSelectionDragSourceBead received the DragStart"); | ||
|
|
||
| DragEvent.dragInitiator = this; | ||
| DragMouseController.dragImageOffsetX = 0; | ||
| DragMouseController.dragImageOffsetY = -30; | ||
|
|
||
| var relatedObject:Object = event.relatedObject; | ||
| var itemRenderer:IIndexedItemRenderer = getParentOrSelfByType(relatedObject as IChild, IItemRenderer) as IIndexedItemRenderer; | ||
|
|
||
| if (itemRenderer) { | ||
| DragEvent.dragSource = itemRenderer.data; | ||
| sendStrandEvent(_strand, new ValueEvent("dragSourceSet", itemRenderer)); | ||
| } | ||
|
|
||
| var newEvent:Event = new Event("start", false, true); | ||
| continueDragOperation = true; | ||
| dispatchEvent(newEvent); | ||
| if (newEvent.defaultPrevented) { | ||
| continueDragOperation = false; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @private | ||
| */ | ||
| protected function handleDragMove(event:DragEvent):void | ||
| { | ||
| dispatchEvent(event); | ||
| } | ||
|
|
||
| /** | ||
| * @private | ||
| */ | ||
| protected function handleDragEnd(event:DragEvent):void | ||
| { | ||
| dispatchEvent(event); | ||
| } | ||
|
|
||
| /* IDragInitiator */ | ||
|
|
||
| /** | ||
| * Handles pre-drop actions. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| * @royaleignorecoercion Array | ||
| * @royaleignorecoercion org.apache.royale.core.IMultiSelectionModel | ||
| * @royaleignorecoercion org.apache.royale.core.IDataProviderModel | ||
| * @royaleignorecoercion mx.collections.IList | ||
| */ | ||
| public function acceptingDrop(dropTarget:Object, type:String):void | ||
| { | ||
| if (!continueDragOperation) return; | ||
|
|
||
| //trace("TreeMultiSelectionDragSourceBead accepting drop of type "+type); | ||
| var newEvent:Event = new Event("accept", false, true); | ||
| dispatchEvent(newEvent); | ||
| if (newEvent.defaultPrevented) return; | ||
|
|
||
| var dataProviderModel:IDataProviderModel = getModelByType(_strand,IDataProviderModel) as IDataProviderModel; | ||
| if (dataProviderModel is IMultiSelectionModel) { | ||
| (dataProviderModel as IMultiSelectionModel).selectedIndices = null; | ||
| } | ||
|
|
||
| if (dragType == "copy") return; | ||
| sendStrandEvent(_strand, new Event("acceptingMoveDrop")); | ||
| } | ||
|
|
||
| /** | ||
| * Handles post-drop actions. | ||
| * | ||
| * @langversion 3.0 | ||
| * @playerversion Flash 10.2 | ||
| * @playerversion AIR 2.6 | ||
| * @productversion Royale 0.9.10 | ||
| */ | ||
| public function acceptedDrop(dropTarget:Object, type:String):void | ||
| { | ||
| dispatchEvent(new Event("complete")); | ||
| } | ||
|
|
||
| } | ||
| } |
Oops, something went wrong.