jp.sourceforge.moreemacs.exp/src/jp/sourceforge/moreemacs/exp/NextErrorHandler.java

   1 package jp.sourceforge.moreemacs.exp;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.List;\r
   5 \r
   6 import org.eclipse.core.commands.AbstractHandler;\r
   7 import org.eclipse.core.commands.ExecutionEvent;\r
   8 import org.eclipse.core.commands.ExecutionException;\r
   9 import org.eclipse.core.commands.NotEnabledException;\r
  10 import org.eclipse.core.commands.NotHandledException;\r
  11 import org.eclipse.core.commands.common.NotDefinedException;\r
  12 import org.eclipse.core.resources.IMarker;\r
  13 import org.eclipse.core.resources.IResource;\r
  14 import org.eclipse.core.runtime.CoreException;\r
  15 import org.eclipse.jface.util.OpenStrategy;\r
  16 import org.eclipse.ui.IViewPart;\r
  17 import org.eclipse.ui.IWorkbenchPage;\r
  18 import org.eclipse.ui.IWorkbenchSite;\r
  19 import org.eclipse.ui.PartInitException;\r
  20 import org.eclipse.ui.handlers.HandlerUtil;\r
  21 import org.eclipse.ui.handlers.IHandlerService;\r
  22 import org.eclipse.ui.ide.IDE;\r
  23 import org.eclipse.ui.views.markers.MarkerSupportView;\r
  24 \r
  25 public class NextErrorHandler extends AbstractHandler {\r
  26 \r
  27     @Override\r
  28     public Object execute(ExecutionEvent event) throws ExecutionException {\r
  29         IWorkbenchSite site = HandlerUtil.getActiveSite(event);\r
  30         IWorkbenchPage page = site.getPage();\r
  31 \r
  32         MarkerSupportView problemView = (MarkerSupportView) page.findView("org.eclipse.ui.views.ProblemView");\r
  33         @SuppressWarnings("restriction")\r
  34         IMarker[] currentMarkers = problemView.getSelectedMarkers();\r
  35         IMarker startPoint = (currentMarkers.length != 0)?currentMarkers[currentMarkers.length-1]:null;\r
  36 \r
  37         selectAll(problemView);\r
  38         \r
  39         @SuppressWarnings("restriction")\r
  40         IMarker[] allMarkers = problemView.getSelectedMarkers();\r
  41         goNextError(allMarkers, startPoint, page);\r
  42 \r
  43         return null;\r
  44     }\r
  45     \r
  46     void selectAll(IViewPart view) throws ExecutionException {\r
  47         view.getSite().getPage().activate(view);\r
  48         IHandlerService handlerService = (IHandlerService)view.getSite().getService(IHandlerService.class);\r
  49         try {\r
  50             handlerService.executeCommand("org.eclipse.ui.edit.selectAll", null);\r
  51         } catch (NotDefinedException e) {\r
  52             throw new ExecutionException(e.getMessage(), e);\r
  53         } catch (NotEnabledException e) {\r
  54             throw new ExecutionException(e.getMessage(), e);\r
  55         } catch (NotHandledException e) {\r
  56             throw new ExecutionException(e.getMessage(), e);\r
  57         }\r
  58     }\r
  59 \r
  60     void goNextError(IMarker[] allMarkers, IMarker startPoint, IWorkbenchPage page) throws ExecutionException {\r
  61         boolean found = false;\r
  62         List<IMarker> skipped = new ArrayList<IMarker>();\r
  63         for(IMarker marker: allMarkers) {\r
  64             if(!marker.exists()) {\r
  65                 continue;\r
  66             }\r
  67             if(startPoint != null && startPoint.exists()) {\r
  68                 if(startPoint.equals(marker)) {\r
  69                     found = true;\r
  70                     continue;\r
  71                 }\r
  72                 \r
  73                 if(hasSameLineNumber(startPoint, marker)) {\r
  74                     continue;\r
  75                 }\r
  76                 \r
  77                 if(!found) {\r
  78                     skipped.add(marker);\r
  79                     continue;\r
  80                 }\r
  81             }\r
  82             \r
  83             if(marker.getResource().getType() != IResource.FILE) {\r
  84                 continue;\r
  85             }\r
  86 \r
  87             try {\r
  88                 IDE.openEditor(page, marker, OpenStrategy.activateOnOpen());\r
  89             } catch (PartInitException e) {\r
  90                 throw new ExecutionException(e.getMessage(), e);\r
  91             }\r
  92             return;\r
  93         }\r
  94         if(startPoint != null && startPoint.exists()) {\r
  95             skipped.add(startPoint);\r
  96         }\r
  97         \r
  98         for(IMarker marker: skipped) {\r
  99             if(marker.getResource().getType() != IResource.FILE) {\r
 100                 continue;\r
 101             }\r
 102 \r
 103             try {\r
 104                 IDE.openEditor(page, marker, OpenStrategy.activateOnOpen());\r
 105             } catch (PartInitException e) {\r
 106                 throw new ExecutionException(e.getMessage(), e);\r
 107             }\r
 108             return;\r
 109         }\r
 110         \r
 111     }\r
 112 \r
 113     boolean hasSameLineNumber(IMarker marker1, IMarker marker2) throws ExecutionException {\r
 114         if(!marker1.getResource().equals(marker2.getResource())) {\r
 115             return false;\r
 116         }\r
 117         try {\r
 118             Integer line1 = (Integer)marker1.getAttribute(IMarker.LINE_NUMBER);\r
 119             Integer line2 = (Integer)marker2.getAttribute(IMarker.LINE_NUMBER);\r
 120             if(line1 == null) {\r
 121                 return (line2 == null);\r
 122             }\r
 123             return line1.equals(line2);\r
 124         } catch (CoreException e) {\r
 125             throw new ExecutionException(e.getMessage(), e);\r
 126         }\r
 127     }\r
 128 }\r