| package org.eclipse.jdt.internal.debug.ui; |
| |
| /* |
| * (c) Copyright IBM Corp. 2000, 2001. |
| * All Rights Reserved. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.ILaunchManager; |
| import org.eclipse.debug.core.model.IDebugTarget; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.debug.core.model.IVariable; |
| import org.eclipse.jdt.debug.core.IJavaDebugTarget; |
| import org.eclipse.jdt.debug.core.IJavaType; |
| import org.eclipse.jdt.debug.core.IJavaValue; |
| import org.eclipse.jdt.ui.text.java.hover.IJavaEditorTextHover; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.ui.IEditorPart; |
| |
| |
| public class JavaDebugHover implements IJavaEditorTextHover { |
| |
| |
| protected IEditorPart fEditor; |
| |
| |
| public JavaDebugHover() { |
| } |
| |
| /** |
| * @see IJavaEditorTextHover#setEditor(IEditorPart) |
| */ |
| public void setEditor(IEditorPart editor) { |
| fEditor= editor; |
| } |
| |
| /** |
| * @see ITextHover#getHoverRegion(ITextViewer, int) |
| */ |
| public IRegion getHoverRegion(ITextViewer textViewer, int offset) { |
| return JavaWordFinder.findWord(textViewer.getDocument(), offset); |
| } |
| |
| /** |
| * @see ITextHover#getHoverInfo(ITextViewer, IRegion) |
| */ |
| public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) { |
| |
| DebugPlugin debugPlugin= DebugPlugin.getDefault(); |
| if (debugPlugin == null) { |
| return null; |
| } |
| |
| ILaunchManager launchManager= debugPlugin.getLaunchManager(); |
| if (launchManager == null) { |
| return null; |
| } |
| |
| IDebugTarget[] targets= launchManager.getDebugTargets(); |
| if (targets != null && targets.length > 0) { |
| try { |
| |
| IDocument document= textViewer.getDocument(); |
| if (document == null) |
| return null; |
| |
| String variableName= document.get(hoverRegion.getOffset(), hoverRegion.getLength()); |
| |
| List javaTargetList = new ArrayList(targets.length); |
| for (int i = 0; i < targets.length; i++) { |
| IJavaDebugTarget javaTarget = (IJavaDebugTarget) targets[i].getAdapter(IJavaDebugTarget.class); |
| if (javaTarget != null) { |
| javaTargetList.add(i, javaTarget); |
| } |
| } |
| |
| StringBuffer buffer= new StringBuffer(); |
| boolean showDebugTarget = javaTargetList.size() > 1; |
| Iterator iterator = javaTargetList.iterator(); |
| while (iterator.hasNext()) { |
| IJavaDebugTarget javaTarget = (IJavaDebugTarget) iterator.next(); |
| try { |
| IVariable variable= javaTarget.findVariable(variableName); |
| if (variable != null) { |
| String debugTargetName = showDebugTarget ? javaTarget.getName() : null; |
| appendVariable(buffer, variable, debugTargetName); |
| } |
| } catch (DebugException x) { |
| JDIDebugUIPlugin.log(x); |
| } |
| } |
| |
| if (buffer.length() > 0) { |
| return buffer.toString(); |
| } |
| |
| } catch (BadLocationException x) { |
| JDIDebugUIPlugin.log(x); |
| } |
| } |
| |
| return null; |
| } |
| |
| /** |
| * A variable gets one line for each debug target it appears in. |
| */ |
| private static void appendVariable(StringBuffer buffer, IVariable variable, String debugTargetName) throws DebugException { |
| |
| buffer.append("<p>"); //$NON-NLS-1$ |
| if (debugTargetName != null) { |
| buffer.append('[' + debugTargetName + "] "); //$NON-NLS-1$ |
| } |
| buffer.append(makeHTMLSafe(variable.getName())); |
| buffer.append(" ="); //$NON-NLS-1$ |
| |
| String type= getTypeName(variable); |
| String value= "<b>" + makeHTMLSafe(variable.getValue().getValueString().trim()) + "</b>"; //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| if (type == null) { |
| buffer.append(" null"); //$NON-NLS-1$ |
| } else if (type.equals("java.lang.String")) { //$NON-NLS-1$ |
| buffer.append(" \""); //$NON-NLS-1$ |
| buffer.append(value); |
| buffer.append('"'); |
| } else if (type.equals("boolean")) { //$NON-NLS-1$ |
| buffer.append(' '); |
| buffer.append(value); |
| } else { |
| buffer.append(" ("); //$NON-NLS-1$ |
| buffer.append(makeHTMLSafe(type)); |
| buffer.append(") "); //$NON-NLS-1$ |
| buffer.append(value); |
| } |
| buffer.append("</p>"); //$NON-NLS-1$ |
| } |
| |
| private static String getTypeName(IVariable variable) throws DebugException { |
| IValue value= variable.getValue(); |
| if (value instanceof IJavaValue) { |
| IJavaType type= ((IJavaValue) value).getJavaType(); |
| if (type == null) { |
| return null; |
| } |
| return type.getName(); |
| } |
| return value.getReferenceTypeName(); |
| } |
| |
| /** |
| * Replace any characters in the given String that would confuse an HTML |
| * parser with their escape sequences. |
| */ |
| private static String makeHTMLSafe(String string) { |
| StringBuffer buffer= new StringBuffer(string.length()); |
| |
| for (int i= 0; i != string.length(); i++) { |
| char ch= string.charAt(i); |
| |
| switch (ch) { |
| case '&': |
| buffer.append("&"); //$NON-NLS-1$ |
| break; |
| |
| case '<': |
| buffer.append("<"); //$NON-NLS-1$ |
| break; |
| |
| case '>': |
| buffer.append(">"); //$NON-NLS-1$ |
| break; |
| |
| default: |
| buffer.append(ch); |
| break; |
| } |
| } |
| |
| return buffer.toString(); |
| } |
| |
| } |