| /******************************************************************************* |
| * Copyright (c) 2010 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 |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.debug.internal.ui.breakpoints; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.IBreakpointManager; |
| import org.eclipse.debug.core.model.IBreakpoint; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.Position; |
| import org.eclipse.ui.texteditor.IMarkerUpdater; |
| import org.eclipse.ui.texteditor.MarkerUtilities; |
| import org.eclipse.wst.jsdt.core.IJavaScriptUnit; |
| import org.eclipse.wst.jsdt.core.JavaScriptCore; |
| import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit; |
| import org.eclipse.wst.jsdt.debug.core.breakpoints.IJavaScriptBreakpoint; |
| import org.eclipse.wst.jsdt.debug.core.breakpoints.IJavaScriptLineBreakpoint; |
| import org.eclipse.wst.jsdt.debug.core.model.JavaScriptDebugModel; |
| import org.eclipse.wst.jsdt.debug.internal.ui.JavaScriptDebugUIPlugin; |
| import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin; |
| import org.eclipse.wst.jsdt.internal.ui.javaeditor.ASTProvider; |
| |
| /** |
| * A marker updater for {@link IJavaScriptBreakpoint}s |
| * |
| * @since 1.1 |
| */ |
| public class JavaScriptBreakpointUpdater implements IMarkerUpdater { |
| |
| /** |
| * Constructor |
| */ |
| public JavaScriptBreakpointUpdater() { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.texteditor.IMarkerUpdater#getMarkerType() |
| */ |
| public String getMarkerType() { |
| return IJavaScriptBreakpoint.MARKER_ID; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.texteditor.IMarkerUpdater#getAttribute() |
| */ |
| public String[] getAttribute() { |
| return new String[] {IMarker.LINE_NUMBER}; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.texteditor.IMarkerUpdater#updateMarker(org.eclipse.core.resources.IMarker, org.eclipse.jface.text.IDocument, org.eclipse.jface.text.Position) |
| */ |
| public boolean updateMarker(IMarker marker, IDocument document, Position position) { |
| if(position.isDeleted()) { |
| return false; |
| } |
| IBreakpointManager manager = DebugPlugin.getDefault().getBreakpointManager(); |
| IBreakpoint breakpoint = manager.getBreakpoint(marker); |
| if(breakpoint == null) { |
| return false; |
| } |
| IJavaScriptUnit unit = JavaScriptCore.createCompilationUnitFrom((IFile) marker.getResource()); |
| if(unit == null) { |
| return false; |
| } |
| JavaScriptUnit jsunit = JavaScriptPlugin.getDefault().getASTProvider().getAST(unit, ASTProvider.WAIT_YES, null); |
| try { |
| BreakpointLocationFinder finder = new BreakpointLocationFinder(jsunit, document.getLineOfOffset(position.getOffset())+1, true); |
| jsunit.accept(finder); |
| if(finder.getLocation() == BreakpointLocationFinder.UNKNOWN) { |
| return false; |
| } |
| int line = finder.getLineNumber(); |
| if(MarkerUtilities.getLineNumber(marker) == line) { |
| //if there exists a breakpoint on the line remove this one |
| if(isLineBreakpoint(marker)) { |
| ensureRanges(document, marker, line); |
| return lineBreakpointExists(marker.getResource(), ((IJavaScriptLineBreakpoint)breakpoint).getScriptPath(), line, marker, true) == null; |
| } |
| return true; |
| } |
| if(isLineBreakpoint(marker) & line == -1) { |
| return false; |
| } |
| if(lineBreakpointExists(marker.getResource(), ((IJavaScriptLineBreakpoint)breakpoint).getScriptPath(), line, marker, false) != null) { |
| return false; |
| } |
| MarkerUtilities.setLineNumber(marker, line); |
| if(isLineBreakpoint(marker)) { |
| ensureRanges(document, marker, line); |
| } |
| return true; |
| } |
| catch(BadLocationException ble) { |
| JavaScriptDebugUIPlugin.log(ble); |
| } catch (CoreException e) { |
| JavaScriptDebugUIPlugin.log(e); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns if the given marker is of the type {@link IJavaScriptLineBreakpoint#MARKER_ID} |
| * @param marker |
| * @return true if the marker is a {@link IJavaScriptLineBreakpoint} marker |
| */ |
| boolean isLineBreakpoint(IMarker marker) { |
| return MarkerUtilities.isMarkerType(marker, IJavaScriptLineBreakpoint.MARKER_ID); |
| } |
| |
| /** |
| * Corrects the {@link IMarker#CHAR_START} and {@link IMarker#CHAR_END} values as needed |
| * |
| * @param document |
| * @param marker |
| * @param line |
| * @throws BadLocationException |
| */ |
| void ensureRanges(IDocument document, IMarker marker, int line) throws BadLocationException { |
| if(line < 0 || line > document.getNumberOfLines()) { |
| return; |
| } |
| IRegion region = document.getLineInformation(line - 1); |
| int charstart = region.getOffset(); |
| int charend = charstart + region.getLength(); |
| MarkerUtilities.setCharStart(marker, charstart); |
| MarkerUtilities.setCharEnd(marker, charend); |
| } |
| |
| /** |
| * Looks up the {@link IJavaScriptLineBreakpoint} that is associated with the given marker. Returns <code>null</code> if one |
| * does not exist |
| * |
| * @param resource |
| * @param typeName |
| * @param lineNumber |
| * @param currentmarker |
| * @param useid if the id of the markers should be compared |
| * @return the {@link IJavaScriptLineBreakpoint} for the given marker or <code>null</code> if one does not exist |
| * @throws CoreException |
| */ |
| IJavaScriptLineBreakpoint lineBreakpointExists(IResource resource, String typeName, int lineNumber, IMarker currentmarker, boolean useid) throws CoreException { |
| String modelId = JavaScriptDebugModel.MODEL_ID; |
| IBreakpointManager manager = DebugPlugin.getDefault().getBreakpointManager(); |
| IBreakpoint[] breakpoints = manager.getBreakpoints(modelId); |
| for (int i = 0; i < breakpoints.length; i++) { |
| if ((breakpoints[i] instanceof IJavaScriptLineBreakpoint)) { |
| IJavaScriptLineBreakpoint breakpoint = (IJavaScriptLineBreakpoint) breakpoints[i]; |
| if(breakpoint.getLineNumber() == lineNumber) { |
| IMarker marker = breakpoint.getMarker(); |
| if (marker != null && |
| marker.exists() && |
| marker.getType().equals(IJavaScriptLineBreakpoint.MARKER_ID) && |
| pathsEqual(breakpoint.getScriptPath(), typeName) && |
| resource.equals(marker.getResource())) { |
| if(useid) { |
| if(currentmarker.getId() != marker.getId()) { |
| return breakpoint; |
| } |
| return null; |
| } |
| return breakpoint; |
| } |
| } |
| |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns if n1 equals n2, where both being <code>null</code> is also considered equal |
| * @param n1 |
| * @param n2 |
| * @return |
| */ |
| boolean pathsEqual(String n1, String n2) { |
| if(n1 == null) { |
| return n2 == null; |
| } |
| return n1.equals(n2); |
| } |
| } |