ExecuteCommandPresenter.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.command.toolbar.commands;

import com.google.gwt.user.client.ui.AcceptsOneWidget;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import com.google.web.bindery.event.shared.EventBus;

import org.eclipse.che.api.core.model.machine.Machine;
import org.eclipse.che.ide.api.command.CommandAddedEvent;
import org.eclipse.che.ide.api.command.CommandExecutor;
import org.eclipse.che.ide.api.command.CommandGoal;
import org.eclipse.che.ide.api.command.CommandImpl;
import org.eclipse.che.ide.api.command.CommandManager;
import org.eclipse.che.ide.api.command.CommandRemovedEvent;
import org.eclipse.che.ide.api.command.CommandUpdatedEvent;
import org.eclipse.che.ide.api.command.CommandsLoadedEvent;
import org.eclipse.che.ide.api.mvp.Presenter;
import org.eclipse.che.ide.command.goal.DebugGoal;
import org.eclipse.che.ide.command.goal.RunGoal;
import org.eclipse.che.ide.command.toolbar.CommandCreationGuide;

import java.util.HashSet;
import java.util.Set;

/** Presenter drives the UI for executing commands. */
@Singleton
public class ExecuteCommandPresenter implements Presenter, ExecuteCommandView.ActionDelegate {

    private final ExecuteCommandView        view;
    private final Provider<CommandExecutor> commandExecutorProvider;
    private final CommandCreationGuide      commandCreationGuide;

    /** Command goals to display in the view. */
    private final Set<CommandGoal> goals;

    @Inject
    public ExecuteCommandPresenter(ExecuteCommandView view,
                                   CommandManager commandManager,
                                   Provider<CommandExecutor> commandExecutorProvider,
                                   CommandCreationGuide commandCreationGuide,
                                   RunGoal runGoal,
                                   DebugGoal debugGoal,
                                   EventBus eventBus) {
        this.view = view;
        this.commandExecutorProvider = commandExecutorProvider;
        this.commandCreationGuide = commandCreationGuide;

        view.setDelegate(this);

        goals = new HashSet<>();
        goals.add(runGoal);
        goals.add(debugGoal);

        eventBus.addHandler(CommandsLoadedEvent.getType(), e -> commandManager.getCommands().forEach(view::addCommand));
        eventBus.addHandler(CommandAddedEvent.getType(), e -> view.addCommand(e.getCommand()));
        eventBus.addHandler(CommandRemovedEvent.getType(), e -> view.removeCommand(e.getCommand()));
        eventBus.addHandler(CommandUpdatedEvent.getType(), e -> {
            view.removeCommand(e.getInitialCommand());
            view.addCommand(e.getUpdatedCommand());
        });
    }

    @Override
    public void go(AcceptsOneWidget container) {
        view.setGoals(goals);

        container.setWidget(view);
    }

    @Override
    public void onCommandExecute(CommandImpl command) {
        commandExecutorProvider.get().executeCommand(command);
    }

    @Override
    public void onCommandExecute(CommandImpl command, Machine machine) {
        commandExecutorProvider.get().executeCommand(command, machine);
    }

    @Override
    public void onGuide(CommandGoal goal) {
        commandCreationGuide.guide(goal);
    }
}