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

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Here is the source code for com.sap.dirigible.ide.workspace.ui.commands.OpenHandler.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.IFile;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;

import com.sap.dirigible.ide.logging.Logger;
import com.sap.dirigible.repository.api.ContentTypeHelper;
import com.sap.dirigible.repository.api.ICommonConstants.ARTIFACT_TYPE;
import com.sap.rap.ui.shared.editor.EditorUtil;
import com.sap.rap.ui.shared.editor.SourceFileEditorInput;

public class OpenHandler extends AbstractHandler {

    private static final String OPEN_FAILURE2 = Messages.OpenHandler_OPEN_FAILURE2;

    private static final String VIEW_THEM_VIA_REGISTRY_AFTER_ACTIVATION = Messages.OpenHandler_VIEW_THEM_VIA_REGISTRY_AFTER_ACTIVATION;

    private static final String OPEN_FAILURE = Messages.OpenHandler_OPEN_FAILURE;

    private static final String BINARY_FILES_ARE_NOT_SUPPORTED = Messages.OpenHandler_BINARY_FILES_ARE_NOT_SUPPORTED;

    private static final Logger logger = Logger.getLogger(OpenHandler.class);

    private static final String COULD_NOT_OPEN_ONE_OR_MORE_FILES = Messages.OpenHandler_COULD_NOT_OPEN_ONE_OR_MORE_FILES;

    private static final String TEXT_EDITOR_ID = "com.sap.dirigible.ide.editor.SourceCodeEditor"; //$NON-NLS-1$

    public Object execute(ExecutionEvent event) throws ExecutionException {
        boolean successful = true;
        ISelection selection = HandlerUtil.getCurrentSelection(event);
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structuredSelection = (IStructuredSelection) selection;
            for (Object element : structuredSelection.toArray()) {
                if (element instanceof IFile) {
                    successful &= (openEditorFor(element) != null);
                } else {
                    successful &= true;
                    //               WorkspaceViewerUtils.expandElement(element);
                }
            }
        }
        if (!successful) {
            logger.error(COULD_NOT_OPEN_ONE_OR_MORE_FILES);
            MessageDialog.openError(null, OPEN_FAILURE2, COULD_NOT_OPEN_ONE_OR_MORE_FILES);
        }
        return null;
    }

    public static IEditorPart open(Object element, int row) {
        OpenHandler handler = new OpenHandler();

        if (element instanceof IFile) {
            return handler.openEditorForResource((IFile) element, row);
        }
        return null;
    }

    public IEditorPart openEditorFor(Object element) {
        if (element instanceof IFile) {
            return openEditorForResource((IFile) element, 0);
        }
        return null;
    }

    private IEditorPart openEditorForResource(IFile file, int row) {
        String editorId = EditorUtil.getEditorIdForExtension(file.getFileExtension());
        String contentType = ContentTypeHelper.getContentType(file.getFileExtension());
        if (editorId == null) {
            if (contentType != null && contentType.contains("text")) { //$NON-NLS-1$
                editorId = TEXT_EDITOR_ID;
            } else {
                logger.error(BINARY_FILES_ARE_NOT_SUPPORTED);
                MessageDialog.openError(null, OPEN_FAILURE,
                        BINARY_FILES_ARE_NOT_SUPPORTED + VIEW_THEM_VIA_REGISTRY_AFTER_ACTIVATION);
                return null;
            }
        }
        SourceFileEditorInput input = new SourceFileEditorInput(file);

        input.setRow(row);

        breakpointsSupported(file, contentType, input);

        readonlyEnabled(file, contentType, input);

        return openEditor(editorId, input);
    }

    protected void readonlyEnabled(IFile file, String contentType, SourceFileEditorInput input) {
        //      input.setReadOnly(true);
    }

    protected void breakpointsSupported(IFile file, String contentType, SourceFileEditorInput input) {
        if (file.getRawLocation().toString().contains(ARTIFACT_TYPE.SCRIPTING_SERVICES) && contentType != null
                && contentType.contains("javascript")) {
            input.setBreakpointsEnabled(true);
        }
    }

    private IEditorPart openEditor(String id, IEditorInput input) {
        IWorkbench workbench = PlatformUI.getWorkbench();
        IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
        IWorkbenchPage page = window.getActivePage();
        try {
            IEditorPart editorPart = page.openEditor(input, id);
            return editorPart;
        } catch (PartInitException e) {
            logger.error(e.getMessage(), e);
            return null;
        }
    }

}