Added a new itemRenderer factory that extends EventDispatcher, allowing custom itemRenderers to intercept events from the itemRenderers and forward them.
Project: http://git-wip-us.apache.org/repos/asf/flex-asjs/repo Commit: http://git-wip-us.apache.org/repos/asf/flex-asjs/commit/eb11ac15 Tree: http://git-wip-us.apache.org/repos/asf/flex-asjs/tree/eb11ac15 Diff: http://git-wip-us.apache.org/repos/asf/flex-asjs/diff/eb11ac15 Branch: refs/heads/refactor-sprite Commit: eb11ac158183a3ee41e90a1f5ef0a027a5f8894f Parents: 022fcd0 Author: Peter Ent <p...@apache.org> Authored: Fri Aug 5 13:17:16 2016 -0400 Committer: Peter Ent <p...@apache.org> Committed: Fri Aug 5 13:17:16 2016 -0400 ---------------------------------------------------------------------- .../projects/HTML/src/main/flex/HTMLClasses.as | 1 + ...ererFactoryAndEventDispatcherForArrayData.as | 191 +++++++++++++++++++ 2 files changed, 192 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/flex-asjs/blob/eb11ac15/frameworks/projects/HTML/src/main/flex/HTMLClasses.as ---------------------------------------------------------------------- diff --git a/frameworks/projects/HTML/src/main/flex/HTMLClasses.as b/frameworks/projects/HTML/src/main/flex/HTMLClasses.as index 51b5e48..f5c0f41 100644 --- a/frameworks/projects/HTML/src/main/flex/HTMLClasses.as +++ b/frameworks/projects/HTML/src/main/flex/HTMLClasses.as @@ -144,6 +144,7 @@ internal class HTMLClasses import org.apache.flex.html.beads.TextItemRendererFactoryForArrayData; TextItemRendererFactoryForArrayData; import org.apache.flex.html.beads.DataItemRendererFactoryForArrayData; DataItemRendererFactoryForArrayData; import org.apache.flex.html.beads.DataItemRendererFactoryForArrayList; DataItemRendererFactoryForArrayList; + import org.apache.flex.html.beads.DataItemRendererFactoryAndEventDispatcherForArrayData; DataItemRendererFactoryAndEventDispatcherForArrayData; import org.apache.flex.html.beads.DataItemRendererFactoryForHierarchicalData; DataItemRendererFactoryForHierarchicalData; import org.apache.flex.html.supportClasses.DataGroup; DataGroup; import org.apache.flex.html.supportClasses.Viewport; Viewport; http://git-wip-us.apache.org/repos/asf/flex-asjs/blob/eb11ac15/frameworks/projects/HTML/src/main/flex/org/apache/flex/html/beads/DataItemRendererFactoryAndEventDispatcherForArrayData.as ---------------------------------------------------------------------- diff --git a/frameworks/projects/HTML/src/main/flex/org/apache/flex/html/beads/DataItemRendererFactoryAndEventDispatcherForArrayData.as b/frameworks/projects/HTML/src/main/flex/org/apache/flex/html/beads/DataItemRendererFactoryAndEventDispatcherForArrayData.as new file mode 100644 index 0000000..3c55c60 --- /dev/null +++ b/frameworks/projects/HTML/src/main/flex/org/apache/flex/html/beads/DataItemRendererFactoryAndEventDispatcherForArrayData.as @@ -0,0 +1,191 @@ +//////////////////////////////////////////////////////////////////////////////// +// +// 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 org.apache.flex.html.beads +{ + import org.apache.flex.core.IBead; + import org.apache.flex.core.IDataProviderItemRendererMapper; + import org.apache.flex.core.IItemRendererClassFactory; + import org.apache.flex.core.IItemRendererParent; + import org.apache.flex.core.IListPresentationModel; + import org.apache.flex.core.ISelectableItemRenderer; + import org.apache.flex.core.ISelectionModel; + import org.apache.flex.core.IStrand; + import org.apache.flex.core.IUIBase; + import org.apache.flex.core.SimpleCSSStyles; + import org.apache.flex.core.UIBase; + import org.apache.flex.core.ValuesManager; + import org.apache.flex.events.Event; + import org.apache.flex.events.EventDispatcher; + import org.apache.flex.events.IEventDispatcher; + import org.apache.flex.html.List; + + /** + * The DataItemRendererFactoryAndEventDispatcherForArrayData class reads an + * array of data and creates an item renderer for every + * item in the array. As each itemRenderer is created, a function is called + * that can be overridden in a subclass. Other implementations of + * IDataProviderItemRendererMapper map different data + * structures or manage a virtual set of renderers. + * + * @langversion 3.0 + * @playerversion Flash 10.2 + * @playerversion AIR 2.6 + * @productversion FlexJS 0.0 + */ + public class DataItemRendererFactoryAndEventDispatcherForArrayData extends EventDispatcher implements IBead, IDataProviderItemRendererMapper + { + /** + * Constructor. + * + * @langversion 3.0 + * @playerversion Flash 10.2 + * @playerversion AIR 2.6 + * @productversion FlexJS 0.0 + */ + public function DataItemRendererFactoryAndEventDispatcherForArrayData() + { + super() + } + + private var selectionModel:ISelectionModel; + + private var labelField:String; + + private var _strand:IStrand; + + /** + * @copy org.apache.flex.core.IBead#strand + * + * @langversion 3.0 + * @playerversion Flash 10.2 + * @playerversion AIR 2.6 + * @productversion FlexJS 0.0 + */ + public function set strand(value:IStrand):void + { + _strand = value; + var listView:IListView = _strand.getBeadByType(IListView) as IListView; + if (listView == null) { + IEventDispatcher(_strand).addEventListener("viewChanged", completeSetup); + } + else { + completeSetup(null); + } + } + + private function completeSetup(event:Event):void + { + selectionModel = _strand.getBeadByType(ISelectionModel) as ISelectionModel; + var listView:IListView = _strand.getBeadByType(IListView) as IListView; + dataGroup = listView.dataGroup; + selectionModel.addEventListener("dataProviderChanged", dataProviderChangeHandler); + + labelField = (listView.host as List).labelField; + + if (!itemRendererFactory) + { + _itemRendererFactory = new (ValuesManager.valuesImpl.getValue(_strand, "iItemRendererClassFactory")) as IItemRendererClassFactory; + _strand.addBead(_itemRendererFactory); + } + + dataProviderChangeHandler(null); + } + + private var _itemRendererFactory:IItemRendererClassFactory; + + /** + * The org.apache.flex.core.IItemRendererClassFactory used + * to generate instances of item renderers. + * + * @langversion 3.0 + * @playerversion Flash 10.2 + * @playerversion AIR 2.6 + * @productversion FlexJS 0.0 + */ + public function get itemRendererFactory():IItemRendererClassFactory + { + return _itemRendererFactory; + } + + /** + * @private + */ + public function set itemRendererFactory(value:IItemRendererClassFactory):void + { + _itemRendererFactory = value; + } + + /** + * The org.apache.flex.core.IItemRendererParent that will + * parent the item renderers. + * + * @langversion 3.0 + * @playerversion Flash 10.2 + * @playerversion AIR 2.6 + * @productversion FlexJS 0.0 + */ + protected var dataGroup:IItemRendererParent; + + private function dataProviderChangeHandler(event:Event):void + { + var dp:Array = selectionModel.dataProvider as Array; + if (!dp) + return; + + dataGroup.removeAllElements(); + + var listView:IListView = _strand.getBeadByType(IListView) as IListView; + var presentationModel:IListPresentationModel = _strand.getBeadByType(IListPresentationModel) as IListPresentationModel; + + var n:int = dp.length; + for (var i:int = 0; i < n; i++) + { + var ir:ISelectableItemRenderer = itemRendererFactory.createItemRenderer(dataGroup) as ISelectableItemRenderer; + ir.index = i; + ir.labelField = labelField; + if (presentationModel) { + var style:SimpleCSSStyles = new SimpleCSSStyles(); + style.marginBottom = presentationModel.separatorThickness; + UIBase(ir).style = style; + UIBase(ir).height = presentationModel.rowHeight; + } + dataGroup.addElement(ir); + ir.data = dp[i]; + + itemRendererCreated(ir); + } + + IEventDispatcher(_strand).dispatchEvent(new Event("itemsCreated")); + } + + /** + * Override this function in a subclass to hook event listeners or other features into + * the itemRenderer when it has been created and set. + * + * @langversion 3.0 + * @playerversion Flash 10.2 + * @playerversion AIR 2.6 + * @productversion FlexJS 0.0 + */ + protected function itemRendererCreated(ir:ISelectableItemRenderer):void + { + // do something with this in a subclass + } + } +}
