ObfuscateProjectsHandler.java

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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.motorola.studio.android.obfuscate.handlers;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.ui.PlatformUI;

import com.motorola.studio.android.model.AndroidProject;
import com.motorola.studio.android.obfuscate.ObfuscatorManager;
import com.motorola.studio.android.obfuscate.ui.ObfuscateDialog;

/**
 * 
 * This class is responsible for handling the command that marks/unmarks Android
 * project to be obfuscated.
 * 
 * Its proposal at first is to be called from the motodev menu
 */
public class ObfuscateProjectsHandler extends AbstractHandler
{

    public Object execute(ExecutionEvent event) throws ExecutionException
    {

        PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable()
        {
            public void run()
            {
                ObfuscateDialog dialog =
                        new ObfuscateDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow()
                                .getShell());
                if (dialog.open() == TitleAreaDialog.OK)
                {
                    List<IProject> obfuscatedProjects = new ArrayList<IProject>();
                    ArrayList<IProject> selectedProjects = dialog.getSelectedProjects();

                    List<IProject> toDesobfuscate = new ArrayList<IProject>();
                    IProject[] allProjects = ResourcesPlugin.getWorkspace().getRoot().getProjects();

                    for (int i = 0; i < allProjects.length; i++)
                    {
                        IProject projectN = allProjects[i];

                        try
                        {
                            //it is an android project and is opened
                            if ((projectN.getNature(AndroidProject.ANDROID_NATURE) != null)
                                    && projectN.isOpen())
                            {
                                //it is obfuscated
                                if (ObfuscatorManager.isProguardSet(projectN))
                                {
                                    obfuscatedProjects.add(projectN);
                                    //it was not selected -> desobfuscate it
                                    if (!selectedProjects.contains(projectN))
                                    {
                                        toDesobfuscate.add(projectN);
                                    }
                                }
                            }
                        }
                        catch (CoreException e)
                        {
                            // do nothing
                        }
                    }

                    //It only makes sense to perform some action if there is a project to obfuscate/desobfuscate
                    if (!(obfuscatedProjects.containsAll(selectedProjects) && toDesobfuscate
                            .isEmpty()))
                    {
                        toggleObfuscateMode(selectedProjects, toDesobfuscate);
                    }
                }
            }
        });

        return null;
    }

    /**
     * Receives a list of project and toogles obfscation mode of these projects:
     * if it is set to be obfuscated, than unset. (and vice-versa)
     * 
     * @param selection
     */
    private void toggleObfuscateMode(List<IProject> _obfuscatedProjects,
            List<IProject> _notObfuscatedProjects)
    {

        for (Iterator<IProject> iterator = _notObfuscatedProjects.iterator(); iterator.hasNext();)
        {
            IProject iProject = iterator.next();
            ObfuscatorManager.unobfuscate(iProject);
        }

        for (Iterator<IProject> iterator = _obfuscatedProjects.iterator(); iterator.hasNext();)
        {
            IProject iProject = iterator.next();
            ObfuscatorManager.obfuscate(iProject, new NullProgressMonitor());
        }

    }
}