/*
 * Copyright (C) 2011 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.android.ide.eclipse.traceview;

import com.android.ide.eclipse.ddms.ITraceviewLauncher;

import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.Path;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.WorkbenchException;
import org.eclipse.ui.ide.IDE;

public class TraceviewLauncher implements ITraceviewLauncher {

    @Override
    public boolean openFile(String osPath) {
        final IFileStore fileStore =  EFS.getLocalFileSystem().getStore(new Path(osPath));
        if (!fileStore.fetchInfo().isDirectory() && fileStore.fetchInfo().exists()) {
            // before we open the file in an editor window, we make sure the current
            // workbench page has an editor area (typically the ddms perspective doesn't).
            final IWorkbench workbench = PlatformUI.getWorkbench();
            Display display = workbench.getDisplay();
            final boolean[] result = new boolean[] { false };
            display.syncExec(new Runnable() {
                @Override
                public void run() {
                    IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
                    IWorkbenchPage page = window.getActivePage();
                    if (page.isEditorAreaVisible() == false) {
                        IAdaptable input;
                        if (page != null)
                            input= page.getInput();
                        else
                            input= ResourcesPlugin.getWorkspace().getRoot();
                        try {
                            workbench.showPerspective("org.eclipse.debug.ui.DebugPerspective",
                                    window, input);
                        } catch (WorkbenchException e) {
                        }
                    }

                    try {
                        result[0] = IDE.openEditorOnFileStore(page, fileStore) != null;
                    } catch (PartInitException e) {
                        // return false below
                    }
                }
            });

            return result[0];
        }

        return false;
    }
}