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Diffstat (limited to 'bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/autoedit/AutoEditStrategyForTabs.java')
-rw-r--r--bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/autoedit/AutoEditStrategyForTabs.java182
1 files changed, 0 insertions, 182 deletions
diff --git a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/autoedit/AutoEditStrategyForTabs.java b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/autoedit/AutoEditStrategyForTabs.java
deleted file mode 100644
index 21cb26d270..0000000000
--- a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/autoedit/AutoEditStrategyForTabs.java
+++ /dev/null
@@ -1,182 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2005 IBM Corporation 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:
- * IBM Corporation - initial API and implementation
- * Jens Lukowski/Innoopract - initial renaming/restructuring
- *******************************************************************************/
-package org.eclipse.wst.jsdt.web.ui.internal.autoedit;
-
-import org.eclipse.core.runtime.Preferences;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.ConfigurableLineTracker;
-import org.eclipse.jface.text.DocumentCommand;
-import org.eclipse.jface.text.IAutoEditStrategy;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.ILineTracker;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.TextUtilities;
-import org.eclipse.ui.IEditorPart;
-import org.eclipse.ui.IWorkbenchPage;
-import org.eclipse.ui.IWorkbenchWindow;
-import org.eclipse.ui.PlatformUI;
-import org.eclipse.ui.texteditor.ITextEditor;
-import org.eclipse.ui.texteditor.ITextEditorExtension3;
-import org.eclipse.wst.html.core.internal.HTMLCorePlugin;
-import org.eclipse.wst.html.core.internal.preferences.HTMLCorePreferenceNames;
-import org.eclipse.wst.jsdt.web.ui.internal.Logger;
-
-/**
- * AutoEditStrategy to handle characters inserted when Tab key is pressed
- */
-public class AutoEditStrategyForTabs implements IAutoEditStrategy {
- private final String TAB_CHARACTER = "\t"; //$NON-NLS-1$
-
- public void customizeDocumentCommand(IDocument document, DocumentCommand command) {
- // if not in smart insert mode just ignore
- if (!isSmartInsertMode()) {
- return;
- }
- // spaces for tab character
- if (command.length == 0 && command.text != null && command.text.length() > 0 && command.text.indexOf(TAB_CHARACTER) != -1) {
- smartInsertForTab(command, document);
- }
- }
-
- /**
- * Returns indentation width if using spaces for indentation, -1 otherwise
- *
- * @return
- */
- private int getIndentationWidth() {
- int width = -1;
- Preferences preferences = HTMLCorePlugin.getDefault().getPluginPreferences();
- if (HTMLCorePreferenceNames.SPACE.equals(preferences.getString(HTMLCorePreferenceNames.INDENTATION_CHAR))) {
- width = preferences.getInt(HTMLCorePreferenceNames.INDENTATION_SIZE);
- }
- return width;
- }
-
- /**
- * Calculate number of spaces for next tab stop
- */
- private String getIndentString(int indentationWidth, int lineOffset, ILineTracker lineTracker, int index) {
- int indentSize = indentationWidth;
- int offsetInLine = -1;
- if (lineTracker != null) {
- try {
- IRegion lineInfo = lineTracker.getLineInformationOfOffset(index);
- if (lineInfo.getOffset() == 0 && lineOffset > -1) {
- offsetInLine = lineOffset + index;
- } else {
- offsetInLine = index - lineInfo.getOffset();
- }
- } catch (BadLocationException e) {
- Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e);
- }
- } else {
- if (lineOffset > -1) {
- offsetInLine = lineOffset + index;
- }
- }
- if (offsetInLine > -1 && indentationWidth > 0) {
- int remainder = offsetInLine % indentationWidth;
- indentSize = indentationWidth - remainder;
- }
- StringBuffer indent = new StringBuffer();
- for (int i = 0; i < indentSize; i++) {
- indent.append(' ');
- }
- return indent.toString();
- }
-
- /**
- * Set up a line tracker for text within command if text is multi-line
- */
- private ILineTracker getLineTracker(IDocument document, String originalText) {
- ConfigurableLineTracker lineTracker = null;
- int[] delims = TextUtilities.indexOf(document.getLegalLineDelimiters(), originalText, 0);
- if (delims[0] != -1 || delims[1] != -1) {
- lineTracker = new ConfigurableLineTracker(document.getLegalLineDelimiters());
- lineTracker.set(originalText);
- }
- return lineTracker;
- }
-
- /**
- * Return true if active editor is in smart insert mode, false otherwise
- *
- * @return
- */
- private boolean isSmartInsertMode() {
- boolean isSmartInsertMode = false;
- ITextEditor textEditor = null;
- IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
- if (window != null) {
- IWorkbenchPage page = window.getActivePage();
- if (page != null) {
- IEditorPart editor = page.getActiveEditor();
- if (editor != null) {
- if (editor instanceof ITextEditor) {
- textEditor = (ITextEditor) editor;
- } else {
- textEditor = (ITextEditor) editor.getAdapter(ITextEditor.class);
- }
- }
- }
- }
- // check if smart insert mode
- if (textEditor instanceof ITextEditorExtension3 && ((ITextEditorExtension3) textEditor).getInsertMode() == ITextEditorExtension3.SMART_INSERT) {
- isSmartInsertMode = true;
- }
- return isSmartInsertMode;
- }
-
- /**
- * Insert spaces for tabs
- *
- * @param command
- */
- private void smartInsertForTab(DocumentCommand command, IDocument document) {
- // tab key was pressed. now check preferences to see if need to insert
- // spaces instead of tab
- int indentationWidth = getIndentationWidth();
- if (indentationWidth > -1) {
- String originalText = command.text;
- StringBuffer newText = new StringBuffer(originalText);
- // determine where in line this command begins
- int lineOffset = -1;
- try {
- IRegion lineInfo = document.getLineInformationOfOffset(command.offset);
- lineOffset = command.offset - lineInfo.getOffset();
- } catch (BadLocationException e) {
- Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e);
- }
- ILineTracker lineTracker = getLineTracker(document, originalText);
- int startIndex = 0;
- int index = newText.indexOf(TAB_CHARACTER);
- while (index != -1) {
- String indent = getIndentString(indentationWidth, lineOffset, lineTracker, index);
- // replace \t character with spaces
- newText.replace(index, index + 1, indent);
- if (lineTracker != null) {
- try {
- lineTracker.replace(index, 1, indent);
- } catch (BadLocationException e) {
- // if something goes wrong with replacing text, just
- // reset to current string
- lineTracker.set(newText.toString());
- Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e);
- }
- }
- startIndex = index + indent.length();
- index = newText.indexOf(TAB_CHARACTER, startIndex);
- }
- command.text = newText.toString();
- }
- }
-}

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