org.rstudio.studio.client.workbench.views.vcs.ConsoleProgressDialog.java Source code

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Here is the source code for org.rstudio.studio.client.workbench.views.vcs.ConsoleProgressDialog.java

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/*
 * ConsoleProgressDialog.java
 *
 * Copyright (C) 2009-11 by RStudio, Inc.
 *
 * This program is licensed to you under the terms of version 3 of the
 * GNU Affero General Public License. This program is distributed WITHOUT
 * ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
 * AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
 *
 */
package org.rstudio.studio.client.workbench.views.vcs;

import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.BorderStyle;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import org.rstudio.core.client.HandlerRegistrations;
import org.rstudio.core.client.VirtualConsole;
import org.rstudio.core.client.widget.BottomScrollPanel;
import org.rstudio.core.client.widget.ModalDialogBase;
import org.rstudio.core.client.widget.PreWidget;
import org.rstudio.core.client.widget.ThemedButton;
import org.rstudio.studio.client.common.SimpleRequestCallback;
import org.rstudio.studio.client.common.console.ConsoleOutputEvent;
import org.rstudio.studio.client.common.console.ConsoleOutputEvent.Handler;
import org.rstudio.studio.client.common.console.ConsoleProcess;
import org.rstudio.studio.client.common.console.ProcessExitEvent;
import org.rstudio.studio.client.server.*;
import org.rstudio.studio.client.server.Void;

public class ConsoleProgressDialog extends ModalDialogBase
        implements Handler, ClickHandler, ProcessExitEvent.Handler {
    public ConsoleProgressDialog(String title, ConsoleProcess consoleProcess) {
        consoleProcess_ = consoleProcess;

        setText(title);

        registrations_ = new HandlerRegistrations();
        registrations_.add(consoleProcess.addConsoleOutputHandler(this));
        registrations_.add(consoleProcess.addProcessExitHandler(this));

        output_ = new PreWidget();
        output_.getElement().getStyle().setMargin(0, Unit.PX);
        output_.getElement().getStyle().setFontSize(11, Unit.PX);

        scrollPanel_ = new BottomScrollPanel(output_);
        scrollPanel_.setSize("640px", "200px");

        Style style = scrollPanel_.getElement().getStyle();
        style.setBackgroundColor("white");
        style.setBorderStyle(BorderStyle.SOLID);
        style.setBorderColor("#BBB");
        style.setBorderWidth(1, Style.Unit.PX);
        style.setMargin(0, Unit.PX);
        style.setMarginBottom(3, Unit.PX);
        style.setPadding(4, Unit.PX);

        status_ = new Label("The process is executing...");

        button_ = new ThemedButton("Stop", this);
        addOkButton(button_);

        consoleProcess.start(new SimpleRequestCallback<Void>() {
            @Override
            public void onError(ServerError error) {
                // Show error and stop
                super.onError(error);
                closeDialog();
            }
        });
    }

    @Override
    protected void onUnload() {
        super.onUnload();
        registrations_.removeHandler();
    }

    @Override
    protected Widget createMainWidget() {
        VerticalPanel vpanel = new VerticalPanel();
        vpanel.add(scrollPanel_);
        vpanel.add(status_);
        return vpanel;
    }

    @Override
    public void onConsoleOutput(ConsoleOutputEvent event) {
        boolean scrolledToBottom = scrollPanel_.isScrolledToBottom();
        console_.submit(event.getOutput());
        output_.setText(console_.toString());
        if (scrolledToBottom)
            scrollPanel_.scrollToBottom();
    }

    @Override
    public void onProcessExit(ProcessExitEvent event) {
        running_ = false;
        button_.setText("Close");

        if (event.getExitCode() == 0)
            status_.setText("The process executed successfully.");
        else
            status_.setText("The process exited with error code " + event.getExitCode());
    }

    @Override
    public void onClick(ClickEvent event) {
        if (running_)
            consoleProcess_.interrupt(new SimpleRequestCallback<Void>());

        // Whether success or failure, we don't want to interrupt again
        running_ = false;

        closeDialog();
    }

    private boolean running_ = false;
    private final ConsoleProcess consoleProcess_;
    private final PreWidget output_;
    private final ThemedButton button_;
    private HandlerRegistrations registrations_;
    private Label status_;
    private VirtualConsole console_ = new VirtualConsole();
    private BottomScrollPanel scrollPanel_;
}