QuickDocumentationAction.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.ext.java.client.action;

import com.google.inject.Inject;
import com.google.inject.Singleton;

import org.eclipse.che.ide.api.action.ActionEvent;
import org.eclipse.che.ide.api.editor.EditorAgent;
import org.eclipse.che.ide.api.editor.EditorPartPresenter;
import org.eclipse.che.ide.api.editor.texteditor.TextEditor;
import org.eclipse.che.ide.api.filetypes.FileTypeRegistry;
import org.eclipse.che.ide.ext.java.client.JavaLocalizationConstant;
import org.eclipse.che.ide.ext.java.client.JavaResources;
import org.eclipse.che.ide.ext.java.client.documentation.QuickDocumentation;
import org.eclipse.che.ide.api.editor.codeassist.HasCompletionInformation;

/**
 * @author Evgen Vidolob
 */
@Singleton
public class QuickDocumentationAction extends JavaEditorAction {

    private QuickDocumentation quickDocumentation;

    @Inject
    public QuickDocumentationAction(JavaLocalizationConstant constant,
                                    QuickDocumentation quickDocumentation,
                                    EditorAgent editorAgent,
                                    JavaResources resources,
                                    FileTypeRegistry fileTypeRegistry) {
        super(constant.actionQuickdocTitle(),
              constant.actionQuickdocDescription(),
              resources.quickDocumentation(),
              editorAgent,
              fileTypeRegistry);
        this.quickDocumentation = quickDocumentation;
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        EditorPartPresenter activeEditor = editorAgent.getActiveEditor();
        if(activeEditor == null){
            return;
        }
        if(activeEditor instanceof TextEditor && activeEditor instanceof HasCompletionInformation) {
            if (((TextEditor)activeEditor).getEditorWidget().isCompletionProposalsShowing() ) {
                ((HasCompletionInformation)activeEditor).showCompletionInformation();
                return;
            }
        }
        quickDocumentation.showDocumentation();
    }
}