plugins/ui-designer/src/com/intellij/uiDesigner/actions/ReloadCustomComponentsAction.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 /*
  18  * Created by IntelliJ IDEA.
  19  * User: yole
  20  * Date: 05.10.2006
  21  * Time: 13:35:16
  22  */
  23 package com.intellij.uiDesigner.actions;
  24
  25 import com.intellij.openapi.actionSystem.AnAction;
  26 import com.intellij.openapi.actionSystem.AnActionEvent;
  27 import com.intellij.openapi.actionSystem.PlatformDataKeys;
  28 import com.intellij.openapi.fileEditor.FileEditor;
  29 import com.intellij.openapi.fileEditor.FileEditorManager;
  30 import com.intellij.openapi.project.Project;
  31 import com.intellij.openapi.util.Ref;
  32 import com.intellij.uiDesigner.FormEditingUtil;
  33 import com.intellij.uiDesigner.LoaderFactory;
  34 import com.intellij.uiDesigner.designSurface.GuiEditor;
  35 import com.intellij.uiDesigner.editor.UIFormEditor;
  36 import com.intellij.uiDesigner.lw.IComponent;
  37 import com.intellij.uiDesigner.radComponents.RadErrorComponent;
  38
  39 public class ReloadCustomComponentsAction extends AnAction {
  40   public void actionPerformed(AnActionEvent e) {
  41     Project project = e.getData(PlatformDataKeys.PROJECT);
  42     if (project == null) return;
  43     LoaderFactory.getInstance(project).clearClassLoaderCache();
  44     final FileEditor[] fileEditors = FileEditorManager.getInstance(project).getAllEditors();
  45     for(FileEditor editor: fileEditors) {
  46       if (editor instanceof UIFormEditor) {
  47         ((UIFormEditor) editor).getEditor().readFromFile(true);
  48       }
  49     }
  50   }
  51
  52   @Override
  53   public void update(AnActionEvent e) {
  54     final GuiEditor editor = FormEditingUtil.getActiveEditor(e.getDataContext());
  55     e.getPresentation().setVisible(editor != null && haveCustomComponents(editor));
  56   }
  57
  58   private static boolean haveCustomComponents(final GuiEditor editor) {
  59     // quick & dirty check
  60     if (editor.isFormInvalid()) {
  61       return true;
  62     }
  63     final Ref<Boolean> result = new Ref<Boolean>();
  64     FormEditingUtil.iterate(editor.getRootContainer(), new FormEditingUtil.ComponentVisitor() {
  65       public boolean visit(final IComponent component) {
  66         if (component instanceof RadErrorComponent || !component.getComponentClassName().startsWith("javax.swing")) {
  67           result.set(Boolean.TRUE);
  68           return false;
  69         }
  70         return true;
  71       }
  72     });
  73     return !result.isNull();
  74   }
  75 }