/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
 *
 * 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.editors.manifest;

import org.eclipse.jface.action.IAction;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.ide.IDEActionFactory;
import org.eclipse.ui.part.MultiPageEditorActionBarContributor;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.ui.texteditor.ITextEditorActionConstants;

/**
 * Manages the installation/deinstallation of global actions for multi-page
 * editors. Responsible for the redirection of global actions to the active
 * editor. Multi-page contributor replaces the contributors for the individual
 * editors in the multi-page editor.
 * 
 * TODO: Doesn't look like we need this. Remove it if not needed.
 * @deprecated
 */
final class ManifestEditorContributor extends MultiPageEditorActionBarContributor {
    private IEditorPart mActiveEditorPart;

    /**
     * Creates a multi-page contributor.
     * 
     * Marked as Private so it can't be instanciated. This is a cheap way to make sure
     * it's not being used. As noted in constructor, should be removed if not used.
     * @deprecated
     */
    private ManifestEditorContributor() {
        super();
    }

    /**
     * Returns the action registed with the given text editor.
     *
     * @return IAction or null if editor is null.
     */
    protected IAction getAction(ITextEditor editor, String actionID) {
        return (editor == null ? null : editor.getAction(actionID));
    }

    /*
     * (non-JavaDoc) Method declared in
     * AbstractMultiPageEditorActionBarContributor.
     */

    @Override
    public void setActivePage(IEditorPart part) {
        if (mActiveEditorPart == part)
            return;

        mActiveEditorPart = part;

        IActionBars actionBars = getActionBars();
        if (actionBars != null) {

            ITextEditor editor =
                (part instanceof ITextEditor) ? (ITextEditor)part : null;

            actionBars.setGlobalActionHandler(ActionFactory.DELETE.getId(),
                    getAction(editor, ITextEditorActionConstants.DELETE));
            actionBars.setGlobalActionHandler(ActionFactory.UNDO.getId(),
                    getAction(editor, ITextEditorActionConstants.UNDO));
            actionBars.setGlobalActionHandler(ActionFactory.REDO.getId(),
                    getAction(editor, ITextEditorActionConstants.REDO));
            actionBars.setGlobalActionHandler(ActionFactory.CUT.getId(),
                    getAction(editor, ITextEditorActionConstants.CUT));
            actionBars.setGlobalActionHandler(ActionFactory.COPY.getId(),
                    getAction(editor, ITextEditorActionConstants.COPY));
            actionBars.setGlobalActionHandler(ActionFactory.PASTE.getId(),
                    getAction(editor, ITextEditorActionConstants.PASTE));
            actionBars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(),
                    getAction(editor, ITextEditorActionConstants.SELECT_ALL));
            actionBars.setGlobalActionHandler(ActionFactory.FIND.getId(),
                    getAction(editor, ITextEditorActionConstants.FIND));
            actionBars.setGlobalActionHandler(
                    IDEActionFactory.BOOKMARK.getId(), getAction(editor,
                            IDEActionFactory.BOOKMARK.getId()));
            actionBars.updateActionBars();
        }
    }
}