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   1 /**********************************************************************
   2  Copyright (c) 2000, 2002 IBM Corp. and others.
   3  All rights reserved. This program and the accompanying materials
   4  are made available under the terms of the Common Public License v1.0
   5  which accompanies this distribution, and is available at
   6  http://www.eclipse.org/legal/cpl-v10.html
   7
   8  Contributors:
   9  IBM Corporation - Initial implementation
  10  Vicente Fernando - www.alfersoft.com.ar
  11  **********************************************************************/
  12 package net.sourceforge.phpeclipse.xdebug.ui.actions;
  13
  14 import net.sourceforge.phpeclipse.xdebug.ui.XDebugUIPlugin;
  15 import net.sourceforge.phpeclipse.xdebug.ui.php.model.PHPLineBreakpointAdapter;
  16
  17 import org.eclipse.core.runtime.CoreException;
  18 import org.eclipse.debug.core.DebugPlugin;
  19 import org.eclipse.jface.action.Action;
  20 import org.eclipse.jface.text.BadLocationException;
  21 import org.eclipse.jface.text.IDocument;
  22 import org.eclipse.jface.text.IRegion;
  23 import org.eclipse.jface.text.TextSelection;
  24 import org.eclipse.jface.text.source.IVerticalRulerInfo;
  25 import org.eclipse.jface.viewers.ISelection;
  26 import org.eclipse.ui.IWorkbenchPart;
  27 import org.eclipse.ui.texteditor.IDocumentProvider;
  28 import org.eclipse.ui.texteditor.ITextEditor;
  29
  30 public class ToggleBreakpointRulerAction extends Action {
  31
  32         static class EmptySelection implements ISelection {
  33
  34                 public boolean isEmpty() {
  35                         return true;
  36                 }
  37         }
  38
  39         private IVerticalRulerInfo fRuler;
  40
  41         private IWorkbenchPart fTargetPart;
  42
  43         private PHPLineBreakpointAdapter fBreakpointAdapter;
  44
  45         private static final ISelection EMPTY_SELECTION = new EmptySelection();
  46
  47         public ToggleBreakpointRulerAction(IWorkbenchPart part,
  48                         IVerticalRulerInfo ruler) {
  49                 super("Toggle Breakpoint"); //$NON-NLS-1$
  50
  51                 fRuler = ruler;
  52                 fRuler = ruler;
  53                 setTargetPart(part);
  54                 fBreakpointAdapter = new PHPLineBreakpointAdapter();
  55                 // part.getSite().getWorkbenchWindow().getWorkbench().getHelpSystem().setHelp(
  56                 // this, ICDebugHelpContextIds.TOGGLE_BREAKPOINT_ACTION );
  57                 // setId( IInternalCDebugUIConstants.ACTION_TOGGLE_BREAKPOINT );
  58         }
  59
  60         /**
  61          * @see Action#run()
  62          */
  63         public void run() {
  64                 try {
  65                         fBreakpointAdapter.toggleLineBreakpoints(getTargetPart(),
  66                                         getTargetSelection());
  67                 } catch (CoreException e) {
  68                         XDebugUIPlugin.errorDialog(getTargetPart().getSite().getShell(),
  69                                         "Error", "Operation failed", e.getStatus());
  70                 }
  71         }
  72
  73         /**
  74          * Returns this action's vertical ruler info.
  75          *
  76          * @return this action's vertical ruler
  77          */
  78         protected IVerticalRulerInfo getVerticalRulerInfo() {
  79                 return fRuler;
  80         }
  81
  82         private IWorkbenchPart getTargetPart() {
  83                 return this.fTargetPart;
  84         }
  85
  86         private void setTargetPart(IWorkbenchPart targetPart) {
  87                 this.fTargetPart = targetPart;
  88         }
  89
  90         /**
  91          * Returns the current selection in the active part, possibly and empty
  92          * selection, but never <code>null</code>.
  93          *
  94          * @return the selection in the active part, possibly empty
  95          */
  96         private ISelection getTargetSelection() {
  97                 IDocument doc = getDocument();
  98                 if (doc != null) {
  99                         int line = getVerticalRulerInfo()
 100                                         .getLineOfLastMouseButtonActivity();
 101                         try {
 102                                 IRegion region = doc.getLineInformation(line);
 103                                 return new TextSelection(doc, region.getOffset(), region
 104                                                 .getLength());
 105                         } catch (BadLocationException e) {
 106                                 DebugPlugin.log(e);
 107                         }
 108                 }
 109                 return EMPTY_SELECTION;
 110         }
 111
 112         private IDocument getDocument() {
 113                 IWorkbenchPart targetPart = getTargetPart();
 114                 if (targetPart instanceof ITextEditor) {
 115                         ITextEditor textEditor = (ITextEditor) targetPart;
 116                         IDocumentProvider provider = textEditor.getDocumentProvider();
 117                         if (provider != null)
 118                                 return provider.getDocument(textEditor.getEditorInput());
 119                 }
 120                 // else if ( targetPart instanceof DisassemblyView ) {
 121                 // DisassemblyView dv = (DisassemblyView)targetPart;
 122                 // IDocumentProvider provider = dv.getDocumentProvider();
 123                 // if ( provider != null )
 124                 // return provider.getDocument( dv.getInput() );
 125                 // }
 126                 return null;
 127         }
 128
 129 }