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yishayw pushed a commit to branch develop
in repository https://gitbox.apache.org/repos/asf/royale-asjs.git
The following commit(s) were added to refs/heads/develop by this push:
new 70d9fdddc5 Emulation - add dragMoveEnabled option to List
70d9fdddc5 is described below
commit 70d9fdddc5090a866f76c4ba843404adc549fb85
Author: Yishay Weiss <yishayj...@hotmail.com>
AuthorDate: Mon Sep 12 11:27:26 2022 +0300
Emulation - add dragMoveEnabled option to List
---
.../MXRoyale/src/main/royale/mx/controls/List.as | 5 +-
.../beads/SingleSelectionDragSourceBead.as | 332 +++++++++++++++++++++
2 files changed, 336 insertions(+), 1 deletion(-)
diff --git a/frameworks/projects/MXRoyale/src/main/royale/mx/controls/List.as
b/frameworks/projects/MXRoyale/src/main/royale/mx/controls/List.as
index 5fdbc5074b..dcc31036ce 100644
--- a/frameworks/projects/MXRoyale/src/main/royale/mx/controls/List.as
+++ b/frameworks/projects/MXRoyale/src/main/royale/mx/controls/List.as
@@ -81,9 +81,10 @@ import mx.controls.listClasses.ListBase;
import org.apache.royale.html.beads.DataGridDrawingLayerBead;
import mx.controls.beads.SingleSelectionDropTargetBead;
import org.apache.royale.html.beads.SingleSelectionDropIndicatorBead;
-import org.apache.royale.html.beads.SingleSelectionDragSourceBead;
+import mx.controls.beads.SingleSelectionDragSourceBead;
import org.apache.royale.html.beads.SingleSelectionDragImageBead;
import org.apache.royale.utils.getOrAddBeadByType;
+import org.apache.royale.core.DropType;
//[IconFile("List.png")]
@@ -359,6 +360,8 @@ public class List extends ListBase // implements IIMESupport
*/
override protected function setDragMoveEnabled():void
{
+ var dragSourceBead:SingleSelectionDragSourceBead =
getOrAddBeadByType(SingleSelectionDragSourceBead, this) as
SingleSelectionDragSourceBead;
+ dragSourceBead.dragType = dragMoveEnabled ? DropType.MOVE :
DropType.COPY;
}
/**
diff --git
a/frameworks/projects/MXRoyale/src/main/royale/mx/controls/beads/SingleSelectionDragSourceBead.as
b/frameworks/projects/MXRoyale/src/main/royale/mx/controls/beads/SingleSelectionDragSourceBead.as
new file mode 100644
index 0000000000..56b0da5c8c
--- /dev/null
+++
b/frameworks/projects/MXRoyale/src/main/royale/mx/controls/beads/SingleSelectionDragSourceBead.as
@@ -0,0 +1,332 @@
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// 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.ISelectionModel;
+ 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;
+
+ /**
+ * 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
+ */
+ [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 SingleSelectionDragSourceBead brings drag capability to
single-selection List components.
+ * By adding this bead, a user can drag a row of the List to a new
location within the list. This bead
+ * should be used in conjunction with SingleSelectionDropTargetBead.
+ *
+ * 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 0.8
+ */
+ public class SingleSelectionDragSourceBead extends EventDispatcher
implements IBead, IDragInitiator
+ {
+ /**
+ * Constructor
+ *
+ * @langversion 3.0
+ * @playerversion Flash 10.2
+ * @playerversion AIR 2.6
+ * @productversion Royale 0.8
+ */
+ public function SingleSelectionDragSourceBead()
+ {
+ 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 0.8
+ */
+ 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 var _dragSourceIndex:int = -1;
+
+ /**
+ * The index into the dataProvider of the strand's model where
the dragSource
+ * can be found. If -1, the dragSource is not in the
dataProvider.
+ *
+ * @langversion 3.0
+ * @playerversion Flash 10.2
+ * @playerversion AIR 2.6
+ * @productversion Royale 0.9.10
+ */
+ public function get dragSourceIndex():int
+ {
+ return _dragSourceIndex;
+ }
+
+ /**
+ * @private
+ * @royaleignorecoercion org.apache.royale.core.IChild
+ * @royaleignorecoercion
org.apache.royale.core.IIndexedItemRenderer
+ */
+ private function handleDragStart(event:DragEvent):void
+ {
+ //trace("SingleSelectionDragSourceBead 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) {
+ _dragSourceIndex = itemRenderer.index;
+ DragEvent.dragSource = itemRenderer.data;
+ }
+
+ 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 0.8
+ * @royaleignorecoercion Array
+ * @royaleignorecoercion org.apache.royale.core.ISelectionModel
+ * @royaleignorecoercion
org.apache.royale.core.IDataProviderModel
+ * @royaleignorecoercion mx.collections.IList
+ */
+ public function acceptingDrop(dropTarget:Object,
type:String):void
+ {
+ if (!continueDragOperation) return;
+
+ //trace("SingleSelectionDragSourceBead 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 ISelectionModel) {
+ (dataProviderModel as
ISelectionModel).selectedIndex = -1;
+ }
+
+ if (dragType == "copy") return;
+ if (dataProviderModel.dataProvider is Array) {
+ var dataArray:Array =
dataProviderModel.dataProvider as Array;
+
+ // remove the item being selected
+ DragEvent.dragSource =
dataArray.splice(_dragSourceIndex,1)[0];
+
+ // refresh the dataProvider model
+ var newArray:Array = dataArray.slice()
+ dataProviderModel.dataProvider = newArray;
+ }
+ else if (dataProviderModel.dataProvider is IList) {
+ var dataList:IList =
dataProviderModel.dataProvider as IList;
+
+ DragEvent.dragSource =
dataList.removeItemAt(_dragSourceIndex);
+ }
+ }
+
+ /**
+ * Handles post-drop actions.
+ *
+ * @langversion 3.0
+ * @playerversion Flash 10.2
+ * @playerversion AIR 2.6
+ * @productversion Royale 0.8
+ */
+ public function acceptedDrop(dropTarget:Object,
type:String):void
+ {
+ //trace("SingleSelectionDragSourceBead accepted drop of
type "+type);
+ var value:Object = DragEvent.dragSource;
+
+ _dragSourceIndex = -1;
+
+ dispatchEvent(new Event("complete"));
+ }
+
+ }
+}
