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A packaging of the IntelliJ Community Edition ui-designer library. This is release number 1 of trunk branch 142.
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/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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 com.intellij.uiDesigner.actions;

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.project.DumbAware;
import com.intellij.uiDesigner.FormEditingUtil;
import com.intellij.uiDesigner.designSurface.GuiEditor;
import com.intellij.uiDesigner.radComponents.RadComponent;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.ArrayList;
import java.util.List;

/**
 * @author yole
 */
public abstract class AbstractGuiEditorAction extends AnAction implements DumbAware {
  private final boolean myModifying;

  protected AbstractGuiEditorAction() {
    myModifying = false;
  }

  protected AbstractGuiEditorAction(final boolean modifying) {
    myModifying = modifying;
  }

  public final void actionPerformed(final AnActionEvent e) {
    final GuiEditor editor = FormEditingUtil.getEditorFromContext(e.getDataContext());
    if (editor != null) {
      final ArrayList selection = FormEditingUtil.getSelectedComponents(editor);
      if (myModifying) {
        if (!editor.ensureEditable()) return;
      }
      Runnable runnable = new Runnable() {
        public void run() {
          actionPerformed(editor, selection, e);
          if (myModifying) {
            editor.refreshAndSave(true);
          }
        }
      };
      if (getCommandName() != null) {
        CommandProcessor.getInstance().executeCommand(editor.getProject(), runnable, getCommandName(), null);
      }
      else {
        runnable.run();
      }
    }
  }

  protected abstract void actionPerformed(final GuiEditor editor, final List selection, final AnActionEvent e);

  public final void update(AnActionEvent e) {
    GuiEditor editor = FormEditingUtil.getEditorFromContext(e.getDataContext());
    if (editor == null) {
      e.getPresentation().setVisible(false);
      e.getPresentation().setEnabled(false);
    }
    else {
      e.getPresentation().setVisible(true);
      e.getPresentation().setEnabled(true);
      final ArrayList selection = FormEditingUtil.getSelectedComponents(editor);
      update(editor, selection, e);
    }
  }

  protected void update(@NotNull GuiEditor editor, final ArrayList selection, final AnActionEvent e) {
  }

  @Nullable
  protected String getCommandName() {
    return null;
  }
}