com.intellij.uiDesigner.palette.DeleteGroupAction.java Source code

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Here is the source code for com.intellij.uiDesigner.palette.DeleteGroupAction.java

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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.palette;

import com.intellij.CommonBundle;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import com.intellij.uiDesigner.UIDesignerBundle;

import java.util.ArrayList;

/**
 * @author yole
 */
public class DeleteGroupAction extends AnAction {
    public void actionPerformed(AnActionEvent e) {
        Project project = e.getData(CommonDataKeys.PROJECT);
        GroupItem groupToBeRemoved = e.getData(GroupItem.DATA_KEY);
        if (groupToBeRemoved == null || project == null)
            return;

        if (!Palette.isRemovable(groupToBeRemoved)) {
            Messages.showInfoMessage(project, UIDesignerBundle.message("error.cannot.remove.default.group"),
                    CommonBundle.getErrorTitle());
            return;
        }

        Palette palette = Palette.getInstance(project);
        ArrayList<GroupItem> groups = new ArrayList<GroupItem>(palette.getGroups());
        groups.remove(groupToBeRemoved);
        palette.setGroups(groups);
    }

    @Override
    public void update(AnActionEvent e) {
        Project project = e.getData(CommonDataKeys.PROJECT);
        GroupItem groupItem = e.getData(GroupItem.DATA_KEY);
        ComponentItem selectedItem = e.getData(ComponentItem.DATA_KEY);
        e.getPresentation().setEnabled(
                project != null && groupItem != null && !groupItem.isReadOnly() && selectedItem == null);
    }
}