| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // 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.royale.html.beads.models |
| { |
| import org.apache.royale.collections.ICollectionView; |
| import org.apache.royale.core.IRollOverModel; |
| import org.apache.royale.core.ISelectionModel; |
| import org.apache.royale.core.IStrand; |
| import org.apache.royale.events.Event; |
| import org.apache.royale.events.EventDispatcher; |
| |
| /** |
| * The SingleSelectionCollectionViewModel class is a selection model for |
| * a dataProvider that is an ICollectionView. It assumes that items |
| * can be fetched from the dataProvider using dataProvider.getItemAt(index). |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public class SingleSelectionCollectionViewModel extends EventDispatcher implements ISelectionModel, IRollOverModel |
| { |
| /** |
| * Constructor. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function SingleSelectionCollectionViewModel() |
| { |
| } |
| |
| private var _strand:IStrand; |
| |
| /** |
| * @copy org.apache.royale.core.IBead#strand |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function set strand(value:IStrand):void |
| { |
| _strand = value; |
| } |
| |
| private var _dataProvider:ICollectionView; |
| |
| /** |
| * @copy org.apache.royale.core.ISelectionModel#dataProvider |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function get dataProvider():Object |
| { |
| return _dataProvider; |
| } |
| |
| /** |
| * @private |
| */ |
| public function set dataProvider(value:Object):void |
| { |
| if (value == _dataProvider) return; |
| |
| _dataProvider = value as ICollectionView; |
| if(!_dataProvider || _selectedIndex >= _dataProvider.length) |
| _selectedIndex = -1; |
| |
| _selectedItem = _selectedIndex == -1 ? null : _dataProvider.getItemAt(_selectedIndex); |
| |
| dispatchEvent(new Event("dataProviderChanged")); |
| } |
| |
| private var _selectedIndex:int = -1; |
| private var _rollOverIndex:int = -1; |
| private var _labelField:String = null; |
| |
| /** |
| * @copy org.apache.royale.core.ISelectionModel#labelField |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function get labelField():String |
| { |
| return _labelField; |
| } |
| |
| /** |
| * @private |
| */ |
| public function set labelField(value:String):void |
| { |
| if (value != _labelField) { |
| _labelField = value; |
| dispatchEvent(new Event("labelFieldChanged")); |
| } |
| } |
| |
| /** |
| * @copy org.apache.royale.core.ISelectionModel#selectedIndex |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function get selectedIndex():int |
| { |
| return _selectedIndex; |
| } |
| |
| /** |
| * @private |
| */ |
| public function set selectedIndex(value:int):void |
| { |
| if (value == _selectedIndex) return; |
| |
| _selectedIndex = value; |
| _selectedItem = (value == -1 || _dataProvider == null) ? null : (value < _dataProvider.length) ? _dataProvider.getItemAt(value) : null; |
| dispatchEvent(new Event("selectedIndexChanged")); |
| } |
| |
| /** |
| * @copy org.apache.royale.core.IRollOverModel#rollOverIndex |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function get rollOverIndex():int |
| { |
| return _rollOverIndex; |
| } |
| |
| /** |
| * @private |
| */ |
| public function set rollOverIndex(value:int):void |
| { |
| if (value != _rollOverIndex) { |
| _rollOverIndex = value; |
| dispatchEvent(new Event("rollOverIndexChanged")); |
| } |
| } |
| |
| private var _selectedItem:Object; |
| |
| /** |
| * @copy org.apache.royale.core.ISelectionModel#selectedItem |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function get selectedItem():Object |
| { |
| return _selectedItem; |
| } |
| |
| /** |
| * @private |
| */ |
| public function set selectedItem(value:Object):void |
| { |
| if (value == _selectedItem) return; |
| |
| _selectedItem = value; |
| var n:int = _dataProvider.length; |
| for (var i:int = 0; i < n; i++) |
| { |
| if (_dataProvider.getItemAt(i) == value) |
| { |
| _selectedIndex = i; |
| break; |
| } |
| } |
| dispatchEvent(new Event("selectedItemChanged")); |
| dispatchEvent(new Event("selectedIndexChanged")); |
| } |
| |
| private var _selectedString:String; |
| |
| /** |
| * An alternative to selectedItem for strongly typing the |
| * the selectedItem if the Array is an Array of Strings. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10.2 |
| * @playerversion AIR 2.6 |
| * @productversion Royale 0.0 |
| */ |
| public function get selectedString():String |
| { |
| return String(_selectedItem); |
| } |
| |
| /** |
| * @private |
| */ |
| public function set selectedString(value:String):void |
| { |
| _selectedString = value; |
| var n:int = _dataProvider.length; |
| for (var i:int = 0; i < n; i++) |
| { |
| if (String(_dataProvider.getItemAt(i)) == value) |
| { |
| _selectedIndex = i; |
| break; |
| } |
| } |
| dispatchEvent(new Event("selectedItemChanged")); |
| dispatchEvent(new Event("selectedIndexChanged")); |
| } |
| } |
| } |