/*

  * Copyright 2004-2008 the Seasar Foundation and the Others.

  *

  * Licensed 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.seasar.uruma.core.impl;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.eclipse.jface.window.WindowManager;

 import org.eclipse.swt.widgets.Shell;

 import org.seasar.framework.container.annotation.tiger.Binding;

 import org.seasar.framework.container.annotation.tiger.BindingType;

 import org.seasar.framework.container.annotation.tiger.Component;

 import org.seasar.framework.util.AssertionUtil;

 import org.seasar.uruma.binding.context.ApplicationContextBinder;

 import org.seasar.uruma.binding.context.ApplicationContextDef;

 import org.seasar.uruma.component.Template;

 import org.seasar.uruma.component.jface.WindowComponent;

 import org.seasar.uruma.context.ApplicationContext;

 import org.seasar.uruma.context.ContextFactory;

 import org.seasar.uruma.context.WindowContext;

 import org.seasar.uruma.context.impl.ApplicationContextImpl;

 import org.seasar.uruma.core.TemplateManager;

 import org.seasar.uruma.core.UrumaMessageCodes;

 import org.seasar.uruma.core.UrumaWindowManager;

 import org.seasar.uruma.desc.PartActionDesc;

 import org.seasar.uruma.desc.PartActionDescFactory;

 import org.seasar.uruma.log.UrumaLogger;

 import org.seasar.uruma.ui.UrumaApplicationWindow;

 /**

  * ウィンドウを管理するためのクラスです。</br>

  * 

  * @author y-komori

  * @author bskuroneko

  */

 @Component

 public class UrumaWindowManagerImpl implements UrumaWindowManager {

     private static final UrumaLogger logger = UrumaLogger

             .getLogger(UrumaWindowManager.class);

     private WindowManager windowManager = new WindowManager();

     private Map<String, WindowComponent> windowMap = new HashMap<String, WindowComponent>();

     private List<UrumaApplicationWindow> windowList = new ArrayList<UrumaApplicationWindow>();

     private TemplateManager templateManager = new TemplateManagerImpl();

     /**

      * 画面間のパラメータ共有に使用する {@link ApplicationContext} オブジェクトです。

      */

     @Binding(bindingType = BindingType.MUST)

     public ApplicationContext applicationContext;

     /*

      * @see org.seasar.uruma.core.UrumaWindowManager#close(java.lang.String)

      */

     public void close(final String windowId) {

         UrumaApplicationWindow window = findWindow(windowId);

         if (window != null) {

             logger.log(UrumaMessageCodes.CLOSE_WINDOW, windowId);

             windowList.remove(window);

             windowMap.remove(windowId);

             ((ApplicationContextImpl) applicationContext)

                     .disposeWindowContext(windowId);

             Shell shell = window.getShell();

             if (shell != null && !shell.isDisposed()) {

                 shell.close();

             }

         }

     }

     /*

      * @see org.seasar.uruma.core.UrumaWindowManager#openWindow(java.lang.String,

      *      boolean)

      */

     public UrumaApplicationWindow openWindow(final String templatePath,

             final boolean modal) {

         Template template = loadTemplate(templatePath);

         UrumaApplicationWindow window = createWindow();

         WindowComponent windowComponent = (WindowComponent) template

                 .getRootComponent();

         String windowId = windowComponent.getId();

         WindowContext windowContext = ContextFactory.createWindowContext(

                 applicationContext, windowId);

         logger.log(UrumaMessageCodes.INIT_WINDOW, windowId);

         window.init(windowContext, windowComponent, modal);

         if (modal) {

             window.setBlockOnOpen(true);

         }

         windowManager.add(window);

         logger.log(UrumaMessageCodes.OPEN_WINDOW, windowId);

         window.open();

         return window;

     }

     protected Template loadTemplate(final String path) {

         Template template = templateManager.getTemplate(path);

         WindowComponent window = (WindowComponent) template.getRootComponent();

         windowMap.put(window.getId(), window);

         return template;

     }

     /*

      * @see org.seasar.uruma.core.UrumaWindowManager#openDialog(java.lang.String,

      *      java.lang.Object)

      */

     public int openDialog(final String templatePath, final Object parentAction) {

         // TODO 仮実装

         // 親画面から ApplicationContext へのエクスポート処理

         if (parentAction != null) {

             PartActionDesc desc = PartActionDescFactory

                     .getPartActionDesc(parentAction.getClass());

             List<ApplicationContextDef> defs = desc

                     .getApplicationContextDefList();

             ApplicationContextBinder.exportObjects(parentAction, defs,

                     applicationContext);

         }

         openWindow(templatePath, true);

         // ApplicationContext から親画面へのインポート処理

         if (parentAction != null) {

             PartActionDesc desc = PartActionDescFactory

                     .getPartActionDesc(parentAction.getClass());

             List<ApplicationContextDef> defs = desc

                     .getApplicationContextDefList();

             ApplicationContextBinder.importObjects(parentAction, defs,

                     applicationContext);

         }

         return 0;

     }

     protected UrumaApplicationWindow createWindow() {

         UrumaApplicationWindow window = new UrumaApplicationWindow(this);

         windowList.add(window);

         return window;

     }

     protected UrumaApplicationWindow findWindow(final String windowId) {

         AssertionUtil.assertNotNull("windowId", windowId);

         for (UrumaApplicationWindow window : windowList) {

             if (windowId.equals(window.getWindowId())) {

                 return window;

             }

         }

         return null;

     }

 }