/*
 * Copyright 2000-2020 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 jetbrains.teamcity.ui.actions;

import jetbrains.teamcity.SharedImages;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;

public class CollapseAllAction extends Action implements IViewActionDelegate {

    private TreeViewer viewer;

    public CollapseAllAction() {
        super("Collapse All", SharedImages.getImageDescriptorByPath(SharedImages.COLLAPSE_ALL_IMG));
    }

    public CollapseAllAction(TreeViewer viewer) {
        this();
        this.viewer = viewer;
    }

    @Override
    public void run() {
        viewer.getTree().setRedraw(false);
        BusyIndicator.showWhile(viewer.getControl().getShell().getDisplay(), new Runnable() {
            public void run() {
                viewer.collapseAll();
                viewer.getTree().setRedraw(true);
            }
        });
    }

    public void init(IViewPart view) {
        if (view.getViewSite().getSelectionProvider() instanceof TreeViewer) {
            viewer = (TreeViewer) view.getViewSite().getSelectionProvider();
        }
    }

    public void run(IAction action) {
        run();
    }

    public void selectionChanged(IAction action, ISelection selection) {
    }

}