com.google.inject.tools.ideplugin.eclipse.BindingsObjectAction.java Source code

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Here is the source code for com.google.inject.tools.ideplugin.eclipse.BindingsObjectAction.java

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/**
 * Copyright (C) 2007 Google Inc.
 * 
 * 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.google.inject.tools.ideplugin.eclipse;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jface.viewers.IStructuredSelection;

import com.google.inject.tools.ideplugin.GuicePlugin;

/**
 * The action to take when the user selects an object in the tree view (Outline)
 * and selects "Find Bindings" from the right click menu.
 * 
 * @author Darren Creutz (dcreutz@gmail.com)
 */
public class BindingsObjectAction implements IObjectActionDelegate {
    private IWorkbenchPart part;
    private GuicePlugin guicePlugin;

    public BindingsObjectAction() {
        super();
        guicePlugin = Activator.getDefault().getGuicePlugin();
    }

    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
        this.part = targetPart;
    }

    /**
     * Eclipse callback to have us run the bindings engine.
     */
    public void run(IAction action) {
        IStructuredSelection selection = (IStructuredSelection) part.getSite().getSelectionProvider()
                .getSelection();
        IJavaElement element = (IJavaElement) selection.getFirstElement();
        EclipseJavaElement javaElement = element == null ? null : new EclipseJavaElement(element);
        if (javaElement != null) {
            guicePlugin.getBindingsEngine(javaElement, new EclipseJavaProject(element.getJavaProject()));
        } else {
            guicePlugin.getMessenger().display(PluginTextValues.SELECTION_NO_BINDINGS);
        }
    }

    /**
     * Eclipse callback that the selected text changed.
     */
    public void selectionChanged(IAction action, ISelection selection) {
    }

}