plugins/org.eclipse.sphinx.platform.ui/src/org/eclipse/sphinx/platform/ui/groups/FileSelectionGroup.java - sphinx/org.eclipse.sphinx - Git at Google

 /**
  * <copyright>
  *
  * Copyright (c) 2011-2016 See4sys, itemis and others.
  * 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:
  *     See4sys - Initial API and implementation
  *     itemis - [503063] Provide launching support for Sphinx Workflows
  *
  * </copyright>
  */
 package org.eclipse.sphinx.platform.ui.groups;

 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.IDialogSettings;
 import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerFilter;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.sphinx.platform.ui.fields.IField;
 import org.eclipse.sphinx.platform.ui.fields.IFieldListener;
 import org.eclipse.sphinx.platform.ui.fields.ListButtonsField;
 import org.eclipse.sphinx.platform.ui.fields.ListField;
 import org.eclipse.sphinx.platform.ui.fields.SelectionButtonField;
 import org.eclipse.sphinx.platform.ui.fields.adapters.IListAdapter;
 import org.eclipse.sphinx.platform.ui.groups.messages.Messages;
 import org.eclipse.sphinx.platform.ui.internal.Activator;
 import org.eclipse.sphinx.platform.util.ExtendedPlatform;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
 import org.eclipse.ui.dialogs.ISelectionStatusValidator;
 import org.eclipse.ui.model.WorkbenchContentProvider;
 import org.eclipse.ui.model.WorkbenchLabelProvider;
 import org.eclipse.ui.views.navigator.ResourceComparator;

 public class FileSelectionGroup extends AbstractGroup {

 	// Dialog settings
 	protected static final String DEFAULT_SECTION_NAME = Activator.getDefault().getBundle().getSymbolicName() + ".SECTION"; //$NON-NLS-1$
 	protected static final String STORE_SELECTED_FILES = "SELECTED_FILES"; //$NON-NLS-1$
 	protected static final String STORE_ENABLE_BUTTON = "ENABLE_BUTTON"; //$NON-NLS-1$

 	protected ListButtonsField fileListField;
 	protected SelectionButtonField enableButton;
 	protected Set<IFile> selectedFiles = new HashSet<IFile>();

 	protected String enableText;
 	protected String fileListLabel;
 	protected String fileExtension;
 	protected IProject project;

 	private String sectionName = DEFAULT_SECTION_NAME;

 	public FileSelectionGroup(String groupName, String enableText, String fileListLabel, String fileExtension, IProject project) {
 		this(groupName, enableText, fileListLabel, fileExtension, project, null);
 	}

 	public FileSelectionGroup(String groupName, String enableText, String fileListLabel, String fileExtension, IProject project,
 			IDialogSettings dialogSettings) {
 		super(groupName, dialogSettings);

 		this.enableText = enableText;
 		this.fileListLabel = fileListLabel;
 		this.fileExtension = fileExtension;
 		this.project = project;
 	}

 	@Override
 	protected void doCreateContent(Composite parent, final int numColumns) {
 		parent.setLayout(new GridLayout(numColumns, false));

 		if (enableText != null && enableText.length() > 0) {
 			enableButton = new SelectionButtonField(SWT.CHECK);
 		}
 		if (enableText != null && enableText.length() > 0) {
 			enableButton.setLabelText(enableText);
 			enableButton.setSelection(false);
 			enableButton.fillIntoGrid(parent, numColumns);
 			enableButton.addFieldListener(new IFieldListener() {
 				@Override
 				public void dialogFieldChanged(IField field) {
 					updateFileSelectionEnableState(enableButton.isSelected());
 				}
 			});
 		}

 		fileListField = new ListButtonsField(createListAdapter(parent), new String[] { Messages.button_add_label, Messages.button_remove_label },
 				new LabelProvider()) {
 			@Override
 			public int getNumberOfControls() {
 				return numColumns;
 			}
 		};
 		fileListField.fillIntoGrid(parent, numColumns);
 		updateFileSelectionEnableState(false);
 		// Add label to fileListField if no button
 		if (enableButton == null) {
 			fileListField.setLabelText(fileListLabel);
 			updateFileSelectionEnableState(true);
 		}
 	}

 	public void updateFileSelectionEnableState(boolean enabled) {
 		if (fileListField != null) {
 			fileListField.setEnabled(enabled);
 		}
 	}

 	private IListAdapter createListAdapter(final Composite parent) {
 		return new IListAdapter() {

 			@Override
 			public void selectionChanged(ListField field) {
 				// Do nothing.
 			}

 			@Override
 			public void doubleClicked(ListField field) {
 				// Do nothing.
 			}

 			@Override
 			public void customButtonPressed(ListField field, int index) {
 				if (index == 0) {
 					selectFiles(parent);
 				}
 				if (index == 1) {
 					removeFiles();
 				}
 			}
 		};
 	}

 	private void selectFiles(Composite parent) {
 		ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(parent.getShell(), new WorkbenchLabelProvider(),
 				new WorkbenchContentProvider());
 		dialog.setTitle(Messages.title_fileSelection);
 		dialog.setMessage(NLS.bind(Messages.desc_fileSelection, groupName));
 		dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());
 		dialog.setAllowMultiple(true);
 		if (project != null) {
 			dialog.setInitialSelection(project);
 		}
 		dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
 		dialog.addFilter(new ViewerFilter() {

 			@Override
 			public boolean select(Viewer viewer, Object parentElement, Object element) {
 				if (element instanceof IFile) {
 					return fileExtension.equals(((IFile) element).getFileExtension());
 				}
 				if (element instanceof IResource) {
 					return !ExtendedPlatform.isPlatformPrivateResource((IResource) element);
 				}
 				return true;
 			}
 		});
 		dialog.setValidator(new ISelectionStatusValidator() {

 			@Override
 			public IStatus validate(Object[] selection) {
 				String pluginId = Activator.getDefault().getBundle().getSymbolicName();
 				for (Object file : selection) {
 					if (!(file instanceof IFile) || ((IFile) file).exists() && !fileExtension.equals(((IFile) file).getFileExtension())) {
 						return new Status(IStatus.ERROR, pluginId, IStatus.ERROR, NLS.bind(Messages.msg_fileSelectionError, groupName), null);
 					}
 				}
 				return Status.OK_STATUS;
 			}
 		});

 		if (dialog.open() == IDialogConstants.OK_ID) {
 			for (Object object : dialog.getResult()) {
 				addFile((IFile) object);
 			}
 		}
 	}

 	private void removeFiles() {
 		if (fileListField != null) {
 			List<Object> selection = fileListField.getSelectedElements();
 			fileListField.removeElements(selection);
 			// remove the file in the 'selectedFiles'
 			for (Object element : selection) {
 				IFile fileToSuppress = null;
 				for (IFile file : selectedFiles) {
 					if (file.getName().equals(element.toString())) {
 						fileToSuppress = file;
 						break;
 					}
 				}
 				if (fileToSuppress != null) {
 					selectedFiles.remove(fileToSuppress);
 				}
 			}
 		}
 	}

 	public void addFile(IFile file) {
 		Assert.isNotNull(file);

 		if (selectedFiles != null && fileListField != null) {
 			selectedFiles.add(file);
 			fileListField.addElement(file.getName());
 		}
 	}

 	@Override
 	public void saveGroupSettings() {
 		IDialogSettings settings = getDialogSettings();
 		if (settings != null) {
 			IDialogSettings section = settings.getSection(getSectionName());
 			if (section == null) {
 				section = settings.addNewSection(getSectionName());
 			}
 			Collection<IFile> files = getFiles();
 			String[] items = new String[files.size()];
 			int i = 0;
 			for (IFile file : files) {
 				items[i] = file.getFullPath().makeRelative().toString();
 				i++;
 			}
 			section.put(STORE_SELECTED_FILES, items);
 			section.put(STORE_ENABLE_BUTTON, getEnableButtonState());
 		}
 	}

 	@Override
 	protected void loadGroupSettings() {
 		IDialogSettings settings = getDialogSettings();
 		if (settings != null) {
 			IDialogSettings section = settings.getSection(getSectionName());
 			if (section != null) {
 				String[] items = section.getArray(STORE_SELECTED_FILES);
 				boolean enableCheck = section.getBoolean(STORE_ENABLE_BUTTON);
 				if (items != null) {
 					setEnabledButtonSelection(enableCheck);
 					for (String fullPath : items) {
 						IFile file = getFile(fullPath);
 						if (file != null && file.exists()) {
 							addFile(file);
 						}
 					}
 					updateFileSelectionEnableState(enableCheck);
 				}
 			}
 		}
 	}

 	protected IFile getFile(String fullPath) {
 		if (fullPath != null && fullPath.length() > 0) {
 			Path path = new Path(fullPath);
 			if (path.segmentCount() > 1) {
 				return ResourcesPlugin.getWorkspace().getRoot().getFile(path);
 			}
 		}
 		return null;
 	}

 	public Collection<IFile> getFiles() {
 		return selectedFiles;
 	}

 	public boolean getEnableButtonState() {
 		if (enableButton != null) {
 			return enableButton.isSelected();
 		}
 		return false;
 	}

 	public void setEnabledButtonSelection(boolean selected) {
 		if (enableButton != null) {
 			enableButton.setSelection(selected);
 		}
 	}

 	public String getSectionName() {
 		return sectionName;
 	}

 	public void setSectionName(String sectionName) {
 		this.sectionName = sectionName;
 	}
 }
	/**
	* <copyright>
	*
	* Copyright (c) 2011-2016 See4sys, itemis and others.
	* 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:
	* See4sys - Initial API and implementation
	* itemis - [503063] Provide launching support for Sphinx Workflows
	*
	* </copyright>
	*/
	package org.eclipse.sphinx.platform.ui.groups;

	import java.util.Collection;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.dialogs.IDialogSettings;
	import org.eclipse.jface.viewers.LabelProvider;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerFilter;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.sphinx.platform.ui.fields.IField;
	import org.eclipse.sphinx.platform.ui.fields.IFieldListener;
	import org.eclipse.sphinx.platform.ui.fields.ListButtonsField;
	import org.eclipse.sphinx.platform.ui.fields.ListField;
	import org.eclipse.sphinx.platform.ui.fields.SelectionButtonField;
	import org.eclipse.sphinx.platform.ui.fields.adapters.IListAdapter;
	import org.eclipse.sphinx.platform.ui.groups.messages.Messages;
	import org.eclipse.sphinx.platform.ui.internal.Activator;
	import org.eclipse.sphinx.platform.util.ExtendedPlatform;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
	import org.eclipse.ui.dialogs.ISelectionStatusValidator;
	import org.eclipse.ui.model.WorkbenchContentProvider;
	import org.eclipse.ui.model.WorkbenchLabelProvider;
	import org.eclipse.ui.views.navigator.ResourceComparator;

	public class FileSelectionGroup extends AbstractGroup {

	// Dialog settings
	protected static final String DEFAULT_SECTION_NAME = Activator.getDefault().getBundle().getSymbolicName() + ".SECTION"; //$NON-NLS-1$
	protected static final String STORE_SELECTED_FILES = "SELECTED_FILES"; //$NON-NLS-1$
	protected static final String STORE_ENABLE_BUTTON = "ENABLE_BUTTON"; //$NON-NLS-1$

	protected ListButtonsField fileListField;
	protected SelectionButtonField enableButton;
	protected Set<IFile> selectedFiles = new HashSet<IFile>();

	protected String enableText;
	protected String fileListLabel;
	protected String fileExtension;
	protected IProject project;

	private String sectionName = DEFAULT_SECTION_NAME;

	public FileSelectionGroup(String groupName, String enableText, String fileListLabel, String fileExtension, IProject project) {
	this(groupName, enableText, fileListLabel, fileExtension, project, null);
	}

	public FileSelectionGroup(String groupName, String enableText, String fileListLabel, String fileExtension, IProject project,
	IDialogSettings dialogSettings) {
	super(groupName, dialogSettings);

	this.enableText = enableText;
	this.fileListLabel = fileListLabel;
	this.fileExtension = fileExtension;
	this.project = project;
	}

	@Override
	protected void doCreateContent(Composite parent, final int numColumns) {
	parent.setLayout(new GridLayout(numColumns, false));

	if (enableText != null && enableText.length() > 0) {
	enableButton = new SelectionButtonField(SWT.CHECK);
	}
	if (enableText != null && enableText.length() > 0) {
	enableButton.setLabelText(enableText);
	enableButton.setSelection(false);
	enableButton.fillIntoGrid(parent, numColumns);
	enableButton.addFieldListener(new IFieldListener() {
	@Override
	public void dialogFieldChanged(IField field) {
	updateFileSelectionEnableState(enableButton.isSelected());
	}
	});
	}

	fileListField = new ListButtonsField(createListAdapter(parent), new String[] { Messages.button_add_label, Messages.button_remove_label },
	new LabelProvider()) {
	@Override
	public int getNumberOfControls() {
	return numColumns;
	}
	};
	fileListField.fillIntoGrid(parent, numColumns);
	updateFileSelectionEnableState(false);
	// Add label to fileListField if no button
	if (enableButton == null) {
	fileListField.setLabelText(fileListLabel);
	updateFileSelectionEnableState(true);
	}
	}

	public void updateFileSelectionEnableState(boolean enabled) {
	if (fileListField != null) {
	fileListField.setEnabled(enabled);
	}
	}

	private IListAdapter createListAdapter(final Composite parent) {
	return new IListAdapter() {

	@Override
	public void selectionChanged(ListField field) {
	// Do nothing.
	}

	@Override
	public void doubleClicked(ListField field) {
	// Do nothing.
	}

	@Override
	public void customButtonPressed(ListField field, int index) {
	if (index == 0) {
	selectFiles(parent);
	}
	if (index == 1) {
	removeFiles();
	}
	}
	};
	}

	private void selectFiles(Composite parent) {
	ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(parent.getShell(), new WorkbenchLabelProvider(),
	new WorkbenchContentProvider());
	dialog.setTitle(Messages.title_fileSelection);
	dialog.setMessage(NLS.bind(Messages.desc_fileSelection, groupName));
	dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());
	dialog.setAllowMultiple(true);
	if (project != null) {
	dialog.setInitialSelection(project);
	}
	dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
	dialog.addFilter(new ViewerFilter() {

	@Override
	public boolean select(Viewer viewer, Object parentElement, Object element) {
	if (element instanceof IFile) {
	return fileExtension.equals(((IFile) element).getFileExtension());
	}
	if (element instanceof IResource) {
	return !ExtendedPlatform.isPlatformPrivateResource((IResource) element);
	}
	return true;
	}
	});
	dialog.setValidator(new ISelectionStatusValidator() {

	@Override
	public IStatus validate(Object[] selection) {
	String pluginId = Activator.getDefault().getBundle().getSymbolicName();
	for (Object file : selection) {
	if (!(file instanceof IFile) \|\| ((IFile) file).exists() && !fileExtension.equals(((IFile) file).getFileExtension())) {
	return new Status(IStatus.ERROR, pluginId, IStatus.ERROR, NLS.bind(Messages.msg_fileSelectionError, groupName), null);
	}
	}
	return Status.OK_STATUS;
	}
	});

	if (dialog.open() == IDialogConstants.OK_ID) {
	for (Object object : dialog.getResult()) {
	addFile((IFile) object);
	}
	}
	}

	private void removeFiles() {
	if (fileListField != null) {
	List<Object> selection = fileListField.getSelectedElements();
	fileListField.removeElements(selection);
	// remove the file in the 'selectedFiles'
	for (Object element : selection) {
	IFile fileToSuppress = null;
	for (IFile file : selectedFiles) {
	if (file.getName().equals(element.toString())) {
	fileToSuppress = file;
	break;
	}
	}
	if (fileToSuppress != null) {
	selectedFiles.remove(fileToSuppress);
	}
	}
	}
	}

	public void addFile(IFile file) {
	Assert.isNotNull(file);

	if (selectedFiles != null && fileListField != null) {
	selectedFiles.add(file);
	fileListField.addElement(file.getName());
	}
	}

	@Override
	public void saveGroupSettings() {
	IDialogSettings settings = getDialogSettings();
	if (settings != null) {
	IDialogSettings section = settings.getSection(getSectionName());
	if (section == null) {
	section = settings.addNewSection(getSectionName());
	}
	Collection<IFile> files = getFiles();
	String[] items = new String[files.size()];
	int i = 0;
	for (IFile file : files) {
	items[i] = file.getFullPath().makeRelative().toString();
	i++;
	}
	section.put(STORE_SELECTED_FILES, items);
	section.put(STORE_ENABLE_BUTTON, getEnableButtonState());
	}
	}

	@Override
	protected void loadGroupSettings() {
	IDialogSettings settings = getDialogSettings();
	if (settings != null) {
	IDialogSettings section = settings.getSection(getSectionName());
	if (section != null) {
	String[] items = section.getArray(STORE_SELECTED_FILES);
	boolean enableCheck = section.getBoolean(STORE_ENABLE_BUTTON);
	if (items != null) {
	setEnabledButtonSelection(enableCheck);
	for (String fullPath : items) {
	IFile file = getFile(fullPath);
	if (file != null && file.exists()) {
	addFile(file);
	}
	}
	updateFileSelectionEnableState(enableCheck);
	}
	}
	}
	}

	protected IFile getFile(String fullPath) {
	if (fullPath != null && fullPath.length() > 0) {
	Path path = new Path(fullPath);
	if (path.segmentCount() > 1) {
	return ResourcesPlugin.getWorkspace().getRoot().getFile(path);
	}
	}
	return null;
	}

	public Collection<IFile> getFiles() {
	return selectedFiles;
	}

	public boolean getEnableButtonState() {
	if (enableButton != null) {
	return enableButton.isSelected();
	}
	return false;
	}

	public void setEnabledButtonSelection(boolean selected) {
	if (enableButton != null) {
	enableButton.setSelection(selected);
	}
	}

	public String getSectionName() {
	return sectionName;
	}

	public void setSectionName(String sectionName) {
	this.sectionName = sectionName;
	}
	}