| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.texteditor; |
| |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Map; |
| import java.util.MissingResourceException; |
| import java.util.ResourceBundle; |
| |
| import org.eclipse.swt.custom.BusyIndicator; |
| import org.eclipse.swt.widgets.Shell; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| |
| import org.eclipse.jface.dialogs.ProgressMonitorDialog; |
| import org.eclipse.jface.operation.IRunnableWithProgress; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IDocumentPartitioner; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.IRewriteTarget; |
| import org.eclipse.jface.text.TextUtilities; |
| |
| |
| /** |
| * An action to convert line delimiters of a text editor document to a |
| * particular line delimiter. |
| * |
| * @since 2.0 |
| * @deprecated since 3.1. Line delimiter conversion has been modified to work on groups of files rather than being editor specific |
| */ |
| @Deprecated |
| public class ConvertLineDelimitersAction extends TextEditorAction { |
| |
| |
| /** The target line delimiter. */ |
| private final String fLineDelimiter; |
| |
| /** |
| * Creates a line delimiter conversion action. |
| * |
| * @param editor the editor |
| * @param lineDelimiter the target line delimiter to convert the editor's document to |
| */ |
| public ConvertLineDelimitersAction(ITextEditor editor, String lineDelimiter) { |
| this(EditorMessages.getBundleForConstructedKeys(), "dummy", editor, lineDelimiter); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Creates a line delimiter conversion action. |
| * |
| * @param bundle the resource bundle |
| * @param prefix the prefix for the resource bundle lookup |
| * @param editor the editor |
| * @param lineDelimiter the target line delimiter to convert the editor's document to |
| */ |
| public ConvertLineDelimitersAction(ResourceBundle bundle, String prefix, ITextEditor editor, String lineDelimiter) { |
| super(bundle, prefix, editor); |
| fLineDelimiter= lineDelimiter; |
| |
| String platformLineDelimiter= System.lineSeparator(); |
| setText(getString(getLabelKey(fLineDelimiter, platformLineDelimiter))); |
| |
| update(); |
| } |
| |
| @Override |
| public void run() { |
| |
| try { |
| |
| ITextEditor editor= getTextEditor(); |
| if (editor == null) |
| return; |
| |
| if (!validateEditorInputState()) |
| return; |
| |
| Object adapter= editor.getAdapter(IRewriteTarget.class); |
| if (adapter instanceof IRewriteTarget) { |
| |
| IRewriteTarget target= (IRewriteTarget) adapter; |
| IDocument document= target.getDocument(); |
| if (document != null) { |
| Shell shell= getTextEditor().getSite().getShell(); |
| ConvertRunnable runnable= new ConvertRunnable(target, fLineDelimiter); |
| |
| if (document.getNumberOfLines() < 40) { |
| BusyIndicator.showWhile(shell.getDisplay(), runnable); |
| |
| } else { |
| ProgressMonitorDialog dialog= new ProgressMonitorDialog(shell); |
| dialog.run(false, true, runnable); |
| } |
| } |
| } |
| |
| } catch (InterruptedException e) { |
| // action canceled |
| } catch (InvocationTargetException e) { |
| // should not happen |
| } |
| } |
| |
| /** |
| * A runnable that converts all line delimiters of a document to <code>lineDelimiter</code>. |
| */ |
| private static class ConvertRunnable implements IRunnableWithProgress, Runnable { |
| |
| /** The rewrite target */ |
| private final IRewriteTarget fRewriteTarget; |
| /** The line delimiter to which to convert to */ |
| private final String fLineDelimiter; |
| |
| /** |
| * Returns a new runnable for converting all line delimiters in the |
| * <code>rewriteTarget</code> to <code>lineDelimter</code>. |
| * |
| * @param rewriteTarget the rewrite target |
| * @param lineDelimiter the line delimiter |
| */ |
| public ConvertRunnable(IRewriteTarget rewriteTarget, String lineDelimiter) { |
| fRewriteTarget= rewriteTarget; |
| fLineDelimiter= lineDelimiter; |
| } |
| |
| @Override |
| public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { |
| |
| IDocument document= fRewriteTarget.getDocument(); |
| final int lineCount= document.getNumberOfLines(); |
| monitor.beginTask(EditorMessages.Editor_ConvertLineDelimiter_title, lineCount); |
| |
| final boolean isLargeUpdate= lineCount > 50; |
| if (isLargeUpdate) |
| fRewriteTarget.setRedraw(false); |
| fRewriteTarget.beginCompoundChange(); |
| |
| Map<String, IDocumentPartitioner> partitioners= TextUtilities.removeDocumentPartitioners(document); |
| |
| try { |
| for (int i= 0; i < lineCount; i++) { |
| if (monitor.isCanceled()) |
| throw new InterruptedException(); |
| |
| final String delimiter= document.getLineDelimiter(i); |
| if (delimiter != null && !delimiter.isEmpty() && !delimiter.equals(fLineDelimiter)) { |
| IRegion region= document.getLineInformation(i); |
| document.replace(region.getOffset() + region.getLength(), delimiter.length(), fLineDelimiter); |
| } |
| |
| monitor.worked(1); |
| } |
| |
| } catch (BadLocationException e) { |
| throw new InvocationTargetException(e); |
| |
| } finally { |
| |
| if (partitioners != null) |
| TextUtilities.addDocumentPartitioners(document, partitioners); |
| |
| fRewriteTarget.endCompoundChange(); |
| if (isLargeUpdate) |
| fRewriteTarget.setRedraw(true); |
| |
| monitor.done(); |
| } |
| } |
| |
| @Override |
| public void run() { |
| try { |
| run(new NullProgressMonitor()); |
| |
| } catch (InterruptedException e) { |
| // should not happen |
| |
| } catch (InvocationTargetException e) { |
| // should not happen |
| } |
| } |
| } |
| |
| // /** |
| // * Returns whether the given document uses only the given line delimiter. |
| // * @param document the document to check |
| // * @param lineDelimiter the line delimiter to check for |
| // */ |
| // private static boolean usesLineDelimiterExclusively(IDocument document, String lineDelimiter) { |
| // |
| // try { |
| // final int lineCount= document.getNumberOfLines(); |
| // for (int i= 0; i < lineCount; i++) { |
| // final String delimiter= document.getLineDelimiter(i); |
| // if (delimiter != null && delimiter.length() > 0 && !delimiter.equals(lineDelimiter)) |
| // return false; |
| // } |
| // |
| // } catch (BadLocationException e) { |
| // return false; |
| // } |
| // |
| // return true; |
| // } |
| |
| /** |
| * Computes and returns the key to be used to lookup the action's label in |
| * its resource bundle. |
| * |
| * @param lineDelimiter the line delimiter |
| * @param platformLineDelimiter the platform line delimiter |
| * @return the key used to lookup the action's label |
| */ |
| private static String getLabelKey(String lineDelimiter, String platformLineDelimiter) { |
| if (lineDelimiter.equals(platformLineDelimiter)) { |
| |
| if (lineDelimiter.equals("\r\n")) //$NON-NLS-1$ |
| return "Editor.ConvertLineDelimiter.toWindows.default.label"; //$NON-NLS-1$ |
| |
| if (lineDelimiter.equals("\n")) //$NON-NLS-1$ |
| return "Editor.ConvertLineDelimiter.toUNIX.default.label"; //$NON-NLS-1$ |
| |
| if (lineDelimiter.equals("\r")) //$NON-NLS-1$ |
| return "Editor.ConvertLineDelimiter.toMac.default.label"; //$NON-NLS-1$ |
| |
| } else { |
| |
| if (lineDelimiter.equals("\r\n")) //$NON-NLS-1$ |
| return "Editor.ConvertLineDelimiter.toWindows.label"; //$NON-NLS-1$ |
| |
| if (lineDelimiter.equals("\n")) //$NON-NLS-1$ |
| return "Editor.ConvertLineDelimiter.toUNIX.label"; //$NON-NLS-1$ |
| |
| if (lineDelimiter.equals("\r")) //$NON-NLS-1$ |
| return "Editor.ConvertLineDelimiter.toMac.label"; //$NON-NLS-1$ |
| } |
| |
| return null; |
| } |
| |
| /* |
| * @since 3.1 |
| */ |
| private static String getString(String key) { |
| try { |
| return EditorMessages.getBundleForConstructedKeys().getString(key); |
| } catch (MissingResourceException e) { |
| return "!" + key + "!";//$NON-NLS-2$ //$NON-NLS-1$ |
| } |
| } |
| |
| @Override |
| public void update() { |
| super.update(); |
| setEnabled(canModifyEditor()); |
| } |
| |
| } |