com.google.cloud.tools.eclipse.appengine.deploy.ui.DeployConsolePageParticipant.java Source code

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Here is the source code for com.google.cloud.tools.eclipse.appengine.deploy.ui.DeployConsolePageParticipant.java

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/*
 * 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.deploy.ui;

import org.eclipse.core.runtime.jobs.IJobChangeEvent;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.jobs.JobChangeAdapter;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.console.ConsolePlugin;
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 com.google.cloud.tools.eclipse.appengine.deploy.standard.StandardDeployJob;
import com.google.common.base.Preconditions;

public class DeployConsolePageParticipant implements IConsolePageParticipant {

    private DeployConsole console;
    private Action terminateAction;
    private Action closeAction;

    @Override
    public void init(IPageBookViewPage page, IConsole console) {
        Preconditions.checkArgument(console instanceof DeployConsole, "console should be instance of %s",
                DeployConsole.class.getName());
        this.console = (DeployConsole) console;

        console.addPropertyChangeListener(new IPropertyChangeListener() {
            @Override
            public void propertyChange(PropertyChangeEvent event) {
                if (event.getProperty().equals(DeployConsole.PROPERTY_JOB)) {
                    // keep the order of adding a listener and then calling update() to ensure update is called regardless of when the
                    // job finishes
                    addJobChangeListener();
                    update();
                }
            }
        });
        IActionBars actionBars = page.getSite().getActionBars();
        configureToolBar(actionBars.getToolBarManager());
        // keep the order of adding a listener and then calling update() to ensure update is called regardless of when the
        // job finishes
        addJobChangeListener();
        update();
    }

    private void configureToolBar(IToolBarManager toolbarManager) {
        terminateAction = createTerminateAction();
        toolbarManager.appendToGroup(IConsoleConstants.LAUNCH_GROUP, terminateAction);

        closeAction = createCloseAction();
        toolbarManager.appendToGroup(IConsoleConstants.LAUNCH_GROUP, closeAction);
    }

    private void addJobChangeListener() {
        StandardDeployJob job = console.getJob();
        if (job != null) {
            job.addJobChangeListener(new JobChangeAdapter() {
                @Override
                public void done(IJobChangeEvent event) {
                    update();
                }
            });
        }
    }

    private void update() {
        StandardDeployJob job = console.getJob();
        if (job != null) {
            if (terminateAction != null) {
                terminateAction.setEnabled(job.getState() != Job.NONE);
            }

            if (closeAction != null) {
                closeAction.setEnabled(job.getState() == Job.NONE);
            }
        }
    }

    private Action createCloseAction() {
        Action close = new Action(Messages.getString("action.remove")) {
            @Override
            public void run() {
                ConsolePlugin.getDefault().getConsoleManager().removeConsoles(new IConsole[] { console });
            }
        };
        close.setToolTipText(Messages.getString("action.remove"));
        close.setImageDescriptor(getSharedImage(ISharedImages.IMG_ELCL_REMOVE));
        close.setHoverImageDescriptor(getSharedImage(ISharedImages.IMG_ELCL_REMOVE));
        close.setDisabledImageDescriptor(getSharedImage(ISharedImages.IMG_ELCL_REMOVE_DISABLED));
        return close;
    }

    private Action createTerminateAction() {
        Action terminate = new Action(Messages.getString("action.stop")) {
            @Override
            public void run() {
                StandardDeployJob job = console.getJob();
                if (job != null) {
                    job.cancel();
                    update();
                }
            }
        };
        terminate.setToolTipText(Messages.getString("action.stop"));
        terminate.setImageDescriptor(getSharedImage(ISharedImages.IMG_ELCL_STOP));
        terminate.setHoverImageDescriptor(getSharedImage(ISharedImages.IMG_ELCL_STOP));
        terminate.setDisabledImageDescriptor(getSharedImage(ISharedImages.IMG_ELCL_STOP_DISABLED));
        return terminate;
    }

    private ImageDescriptor getSharedImage(String image) {
        return PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(image);
    }

    @Override
    public void activated() {
        // nothing to do
    }

    @Override
    public void deactivated() {
        // nothing to do
    }

    @Override
    public void dispose() {
    }

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

}