com.aptana.portal.ui.dispatch.actionControllers.RecentFilesActionController.java Source code

Introduction

Here is the source code for com.aptana.portal.ui.dispatch.actionControllers.RecentFilesActionController.java

Source

/**
 * Aptana Studio
 * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions).
 * Please see the license.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.portal.ui.dispatch.actionControllers;

import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorDescriptor;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.internal.EditorHistory;
import org.eclipse.ui.internal.EditorHistoryItem;
import org.eclipse.ui.internal.IPreferenceConstants;
import org.eclipse.ui.internal.Workbench;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchPlugin;
import com.aptana.jetty.util.epl.ajax.JSON;

import com.aptana.configurations.processor.ConfigurationStatus;
import com.aptana.core.logging.IdeLog;
import com.aptana.portal.ui.PortalUIPlugin;
import com.aptana.portal.ui.dispatch.BrowserNotifier;
import com.aptana.portal.ui.dispatch.IBrowserNotificationConstants;

/**
 * A action controller for recent-files related actions.
 * 
 * @author Shalom Gibly <sgibly@appcelerator.com>
 */
@SuppressWarnings("restriction")
public class RecentFilesActionController extends AbstractActionController {

    // ############## Actions ###############

    /**
     * Returns a JSON representation of the recently opened files.
     */
    @ControllerAction
    public Object getRecentFiles() {
        EditorHistory editorHistory = ((Workbench) PortalUIPlugin.getDefault().getWorkbench()).getEditorHistory();
        EditorHistoryItem[] items = editorHistory.getItems();
        int itemsToShow = WorkbenchPlugin.getDefault().getPreferenceStore()
                .getInt(IPreferenceConstants.RECENT_FILES);
        Map<String, String> files = new LinkedHashMap<String, String>();
        if (items != null && itemsToShow > 0) {
            for (EditorHistoryItem item : items) {
                // Ignore any item that describes the portal browser that we opened.
                IEditorDescriptor editorDescriptor = item.getDescriptor();
                if (editorDescriptor == null || !editorDescriptor.getId().startsWith(PortalUIPlugin.PLUGIN_ID)) {
                    if (itemsToShow-- == 0) {
                        break;
                    }
                    files.put(item.getName(), item.getToolTipText());
                }
            }
        }
        return JSON.toString(files);
    }

    /**
     * Open a recently-opened file in the editor.
     * 
     * @param arguments
     *            A list of file identifiers (paths) that are known to the EditorHistory. The given arguments are
     *            expected to be an Object array.
     */
    @ControllerAction
    public Object openRecentFiles(Object arguments) {
        // We use a similar mechanism to open a history item as eclipse does at the
        // ReopenEditorMenu class.
        if (!(arguments instanceof Object[])) {
            String message = "Wrong argument type passed to RecentFilesActionController::openRecentFile. Expected Object[] and got " //$NON-NLS-1$
                    + ((arguments == null) ? "null" : arguments.getClass().getName()); //$NON-NLS-1$
            IdeLog.logError(PortalUIPlugin.getDefault(), new Exception(message));

            return BrowserNotifier.toJSONErrorNotification(IBrowserNotificationConstants.JSON_ERROR_WRONG_ARGUMENTS,
                    null);
        }
        Object[] args = (Object[]) arguments;
        if (args != null && args.length > 0) {
            Set<String> filesToOpen = new LinkedHashSet<String>();
            for (Object file : args) {
                filesToOpen.add(file.toString());
            }
            EditorHistory editorHistory = ((Workbench) PortalUIPlugin.getDefault().getWorkbench())
                    .getEditorHistory();
            EditorHistoryItem[] items = editorHistory.getItems();
            if (items != null) {
                for (EditorHistoryItem item : items) {
                    if (filesToOpen.contains(item.getToolTipText())) {
                        open(item);
                    }
                }
            }
        }
        return IBrowserNotificationConstants.JSON_OK;
    }

    /*
     * Reopens the editor for the given history item.
     */
    private void open(EditorHistoryItem item) {
        IWorkbenchPage page = PortalUIPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage();
        if (page != null) {
            try {
                String itemName = item.getName();
                if (!item.isRestored()) {
                    item.restoreState();
                }
                IEditorInput input = item.getInput();
                IEditorDescriptor desc = item.getDescriptor();
                if (input == null || desc == null) {
                    String title = WorkbenchMessages.OpenRecent_errorTitle;
                    String msg = NLS.bind(WorkbenchMessages.OpenRecent_unableToOpen, itemName);
                    MessageDialog.openWarning(Display.getDefault().getActiveShell(), title, msg);
                } else {
                    page.openEditor(input, desc.getId());
                }
            } catch (PartInitException e2) {
                String title = WorkbenchMessages.OpenRecent_errorTitle;
                MessageDialog.openWarning(Display.getDefault().getActiveShell(), title, e2.getMessage());
            }
        }
    }

    /*
     * (non-Javadoc)
     * @see com.aptana.configurations.processor.IConfigurationProcessorListener#configurationStateChanged(com.aptana.
     * configurations.processor.ConfigurationStatus, java.util.Set)
     */
    public void configurationStateChanged(ConfigurationStatus status, Set<String> attributesChanged) {
        // Nothing to do here
    }
}