com.sap.dirigible.ide.workspace.ui.commands.RenameCommandHandler.java Source code

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Here is the source code for com.sap.dirigible.ide.workspace.ui.commands.RenameCommandHandler.java

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/*******************************************************************************
 * Copyright (c) 2014 SAP AG or an SAP affiliate company. All rights reserved.
 * 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.sap.dirigible.ide.workspace.ui.commands;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;

import com.sap.dirigible.ide.editor.js.JavaScriptEditor;
import com.sap.dirigible.ide.logging.Logger;
import com.sap.dirigible.ide.workspace.ui.wizards.rename.RenameWizard;

public class RenameCommandHandler extends AbstractHandler {

    private static final String RENAME_OPERATION_CANCELLED_CAN_ONLY_RENAME_INSTANCES_OF_I_RESOURCE = Messages.RenameCommandHandler_RENAME_OPERATION_CANCELLED_CAN_ONLY_RENAME_INSTANCES_OF_I_RESOURCE;
    private static final String RENAME_OPERATION_CANCELLED_CAN_ONLY_RENAME_A_SINGLE_RESOURCE_AT_A_TIME = Messages.RenameCommandHandler_RENAME_OPERATION_CANCELLED_CAN_ONLY_RENAME_A_SINGLE_RESOURCE_AT_A_TIME;
    private static final Logger log = Logger.getLogger(RenameCommandHandler.class);

    public Object execute(ExecutionEvent event) throws ExecutionException {
        final ISelection selection = HandlerUtil.getCurrentSelection(event);
        if (selection instanceof IStructuredSelection) {
            renameSelection((IStructuredSelection) selection);
        }
        return null;

    }

    private void renameFileInEditor(String oldFileName, String newFileName) {
        IEditorReference[] editors = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                .getEditorReferences();
        for (IEditorReference editorRef : editors) {
            IEditorPart editorPart = editorRef.getEditor(false);
            if (editorPart != null && editorPart.getTitle().equals(oldFileName)) {
                // com.sap.dirigible.ide.editor.js.
                if (editorPart instanceof JavaScriptEditor) {
                    ((JavaScriptEditor) editorPart).setPartName(newFileName);
                    return;
                }
            }

        }
    }

    private void renameSelection(IStructuredSelection selection) {
        if (selection.size() != 1) {
            log.warn(RENAME_OPERATION_CANCELLED_CAN_ONLY_RENAME_A_SINGLE_RESOURCE_AT_A_TIME);
            return;
        }
        final Object element = selection.getFirstElement();
        if (!(element instanceof IResource)) {
            log.warn(RENAME_OPERATION_CANCELLED_CAN_ONLY_RENAME_INSTANCES_OF_I_RESOURCE);
            return;
        }
        String newValue = renameResource((IResource) element);
        if (newValue != null) {
            renameFileInEditor(((IResource) element).getName(), newValue);
        }
    }

    private String renameResource(IResource resource) {
        final RenameWizard wizard = new RenameWizard(resource);
        final Dialog dialog = new WizardDialog(null, wizard);
        if (dialog.open() == Window.CANCEL) {
            return null;
        }
        ;
        return wizard.getText();
    }

}