| /******************************************************************************* |
| * Copyright (c) 2000, 2012 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.editors.text; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| |
| import org.eclipse.core.runtime.IPath; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| |
| import org.eclipse.core.filebuffers.FileBuffers; |
| import org.eclipse.core.filebuffers.ITextFileBufferManager; |
| import org.eclipse.core.filebuffers.manipulation.ConvertLineDelimitersOperation; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.window.Window; |
| |
| import org.eclipse.jface.text.ITextSelection; |
| |
| import org.eclipse.ui.internal.editors.text.SelectResourcesDialog.IFilter; |
| |
| import org.eclipse.ui.editors.text.FileBufferOperationAction; |
| |
| |
| /** |
| * A file buffer operation action that changes the line delimiters to a specified |
| * line delimiter. |
| * |
| * @since 3.1 |
| */ |
| public class ConvertLineDelimitersAction extends FileBufferOperationAction { |
| |
| private String fLabel; |
| private boolean fStrictCheckIfTextLocation; |
| |
| protected ConvertLineDelimitersAction(String lineDelimiter, String label) { |
| super(new ConvertLineDelimitersOperation(lineDelimiter)); |
| setText(constructLabel(label, lineDelimiter, System.lineSeparator())); |
| fLabel= Action.removeMnemonics(label); |
| } |
| |
| private static String constructLabel(String label, String lineDelimiter, String platformLineDelimiter) { |
| if (lineDelimiter.equals(platformLineDelimiter)) |
| return label + TextEditorMessages.ConvertLineDelimitersAction_default_label; |
| return label; |
| } |
| |
| @Override |
| protected boolean isAcceptableLocation(IPath location) { |
| ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager(); |
| return location != null && manager.isTextFileLocation(location, fStrictCheckIfTextLocation); |
| } |
| |
| @Override |
| public void selectionChanged(IAction action, ISelection selection) { |
| super.selectionChanged(action, selection); |
| fStrictCheckIfTextLocation= !(selection instanceof ITextSelection); |
| } |
| |
| @Override |
| protected IFile[] collectFiles(final IResource[] resources) { |
| fStrictCheckIfTextLocation= fStrictCheckIfTextLocation || resources.length != 1 || resources[0].getType() != IResource.FILE; |
| if (containsOnlyFiles(resources)) { |
| IFile[] files= super.collectFiles(resources); |
| return filterUnacceptableFiles(files); |
| } |
| |
| final IFilter filter= resource -> resource != null && isAcceptableLocation(resource.getFullPath()); |
| |
| SelectResourcesDialog dialog= new SelectResourcesDialog(getShell(), getDialogTitle(), TextEditorMessages.ConvertLineDelimitersAction_dialog_description, filter) { |
| @Override |
| protected Composite createSelectionButtonGroup(Composite parent) { |
| Composite buttonGroup= super.createSelectionButtonGroup(parent); |
| |
| final Button button = new Button(buttonGroup, SWT.CHECK); |
| ((GridLayout) buttonGroup.getLayout()).numColumns++; |
| button.setText(TextEditorMessages.ConvertLineDelimitersAction_show_only_text_files); |
| button.setFont(JFaceResources.getDialogFont()); |
| button.setSelection(fStrictCheckIfTextLocation); |
| button.addSelectionListener(new SelectionAdapter() { |
| @Override |
| public void widgetSelected(SelectionEvent event) { |
| fStrictCheckIfTextLocation= button.getSelection(); |
| refresh(); |
| } |
| }); |
| |
| return buttonGroup; |
| } |
| }; |
| dialog.setInput(resources); |
| int result= dialog.open(); |
| if (Window.OK == result) { |
| IResource[] selectedResources= dialog.getSelectedResources(); |
| return super.collectFiles(selectedResources); |
| } |
| return null; |
| } |
| |
| private String getDialogTitle() { |
| return NLSUtility.format(TextEditorMessages.ConvertLineDelimitersAction_dialog_title, fLabel); |
| } |
| |
| /** |
| * Checks whether the given resources array contains |
| * only files. |
| * |
| * @param resources the array with the resources |
| * @return <code>true</code> if there array only contains <code>IFiles</code>s |
| * @since 3.2 |
| */ |
| private boolean containsOnlyFiles(IResource[] resources) { |
| for (IResource resource : resources) { |
| if ((IResource.FILE & resource.getType()) == 0) |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Filters the unacceptable files. |
| * |
| * @param files the files to filter |
| * @return an array of files |
| * @since 3.2 |
| */ |
| private IFile[] filterUnacceptableFiles(IFile[] files) { |
| boolean askForBinary= true; |
| Set<IFile> filtered= new HashSet<>(); |
| for (IFile file : files) { |
| if (isAcceptableLocation(file.getFullPath())) { |
| filtered.add(file); |
| } else if (askForBinary) { |
| int result= new MessageDialog(getShell(), getDialogTitle(), null, |
| TextEditorMessages.ConvertLineDelimitersAction_nontext_selection, |
| MessageDialog.WARNING, |
| new String[] { TextEditorMessages.ConvertLineDelimitersAction_convert_all , TextEditorMessages.ConvertLineDelimitersAction_convert_text, IDialogConstants.CANCEL_LABEL}, 1).open(); |
| if (result == 0) { |
| fStrictCheckIfTextLocation= false; |
| filtered.add(file); |
| } else if (result == 1) { |
| askForBinary= false; |
| } else { |
| return null; |
| } |
| } |
| } |
| return filtered.toArray(new IFile[filtered.size()]); |
| } |
| |
| } |