com.google.cloud.tools.eclipse.appengine.localserver.ui.LocalAppEngineConsolePageParticipant.java Source code

Introduction

Here is the source code for com.google.cloud.tools.eclipse.appengine.localserver.ui.LocalAppEngineConsolePageParticipant.java

Source

/*
 * Copyright 2016 Google Inc.
 *
 * 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.google.cloud.tools.eclipse.appengine.localserver.ui;

import com.google.cloud.tools.eclipse.appengine.localserver.server.LocalAppEngineServerBehaviour;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.console.IConsoleConstants;
import org.eclipse.ui.console.IConsolePageParticipant;
import org.eclipse.ui.part.IPageBookViewPage;
import org.eclipse.wst.server.core.IServer;
import org.eclipse.wst.server.ui.internal.ImageResource;
import org.eclipse.wst.server.ui.internal.Messages;

/**
 * Adds a stop button for the App Engine runtime to the {@link LocalAppEngineConsole}
 */
@SuppressWarnings("restriction") // For ImageResource, Messages
public class LocalAppEngineConsolePageParticipant implements IConsolePageParticipant {
    private LocalAppEngineConsole console;
    private Action terminateAction;

    @Override
    public <T> T getAdapter(Class<T> required) {
        return null;
    }

    @Override
    public void init(IPageBookViewPage page, IConsole console) {
        this.console = (LocalAppEngineConsole) console;

        // contribute to toolbar
        IActionBars actionBars = page.getSite().getActionBars();
        configureToolBar(actionBars.getToolBarManager());
    }

    @Override
    public void dispose() {
        terminateAction = null;
    }

    @Override
    public void activated() {
        update();
    }

    @Override
    public void deactivated() {
        update();
    }

    private void configureToolBar(IToolBarManager toolbarManager) {
        terminateAction = new Action(Messages.actionStop) {
            @Override
            public void run() {
                //code to execute when button is pressed
                LocalAppEngineServerBehaviour serverBehaviour = console.getServerBehaviourDelegate();
                if (serverBehaviour != null) {
                    // try to initiate a nice shutdown
                    boolean force = serverBehaviour.getServer().getServerState() == IServer.STATE_STOPPING;
                    serverBehaviour.stop(force);
                }
                update();
            }
        };
        terminateAction.setToolTipText(Messages.actionStopToolTip);
        terminateAction.setImageDescriptor(ImageResource.getImageDescriptor(ImageResource.IMG_ELCL_STOP));
        terminateAction.setHoverImageDescriptor(ImageResource.getImageDescriptor(ImageResource.IMG_CLCL_STOP));
        terminateAction.setDisabledImageDescriptor(ImageResource.getImageDescriptor(ImageResource.IMG_DLCL_STOP));

        toolbarManager.appendToGroup(IConsoleConstants.LAUNCH_GROUP, terminateAction);
    }

    private void update() {
        if (terminateAction != null) {
            LocalAppEngineServerBehaviour serverBehaviour = console.getServerBehaviourDelegate();
            if (serverBehaviour != null) {
                IStatus status = serverBehaviour.canStop();
                terminateAction.setEnabled(status.isOK());
            }
        }
    }

}