gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.modeling.ui.componentTypeEditor;\r
   2 \r
   3 import java.io.PrintWriter;\r
   4 import java.io.StringWriter;\r
   5 import java.util.Arrays;\r
   6 import java.util.Collections;\r
   7 import java.util.List;\r
   8 \r
   9 import org.eclipse.core.runtime.CoreException;\r
  10 import org.eclipse.core.runtime.IProgressMonitor;\r
  11 import org.eclipse.jface.operation.IRunnableContext;\r
  12 import org.eclipse.jface.text.Document;\r
  13 import org.eclipse.jface.text.IDocument;\r
  14 import org.eclipse.jface.text.Position;\r
  15 import org.eclipse.jface.text.source.Annotation;\r
  16 import org.eclipse.jface.text.source.AnnotationModel;\r
  17 import org.eclipse.jface.text.source.IAnnotationModel;\r
  18 import org.eclipse.ui.texteditor.AbstractDocumentProvider;\r
  19 import org.simantics.Simantics;\r
  20 import org.simantics.databoard.Bindings;\r
  21 import org.simantics.db.ReadGraph;\r
  22 import org.simantics.db.Resource;\r
  23 import org.simantics.db.WriteGraph;\r
  24 import org.simantics.db.common.request.ReadRequest;\r
  25 import org.simantics.db.common.request.UniqueRead;\r
  26 import org.simantics.db.common.request.WriteRequest;\r
  27 import org.simantics.db.exception.DatabaseException;\r
  28 import org.simantics.db.layer0.util.Layer0Utils;\r
  29 import org.simantics.layer0.Layer0;\r
  30 import org.simantics.scl.compiler.errors.CompilationError;\r
  31 import org.simantics.scl.compiler.errors.Failable;\r
  32 import org.simantics.scl.compiler.errors.Failure;\r
  33 import org.simantics.scl.compiler.errors.Locations;\r
  34 import org.simantics.scl.compiler.module.Module;\r
  35 import org.simantics.scl.compiler.module.repository.UpdateListener;\r
  36 import org.simantics.scl.osgi.SCLOsgi;\r
  37 import org.simantics.scl.runtime.SCLContext;\r
  38 import org.simantics.scl.ui.editor.SCLSourceViewerConfigurationNew;\r
  39 import org.simantics.ui.workbench.ResourceEditorInput;\r
  40 import org.simantics.utils.logging.TimeLogger;\r
  41 \r
  42 public class SCLModuleEditorDocumentProvider extends AbstractDocumentProvider {\r
  43 \r
  44     protected Resource resource;\r
  45     protected String currentText;\r
  46     protected boolean errorHappened;\r
  47 \r
  48     protected AnnotationModel annotationModel = new AnnotationModel();\r
  49     private final SCLSourceViewerConfigurationNew sourceViewer;\r
  50 \r
  51     public SCLModuleEditorDocumentProvider(SCLSourceViewerConfigurationNew sourceViewer) {\r
  52         this.sourceViewer = sourceViewer;\r
  53     }\r
  54 \r
  55     @Override\r
  56     protected IDocument createDocument(Object element) throws CoreException {\r
  57         ResourceEditorInput input = (ResourceEditorInput)element;\r
  58         resource = input.getResource();\r
  59         try {\r
  60             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {\r
  61                 @Override\r
  62                 public Document perform(ReadGraph graph) throws DatabaseException {\r
  63                     Layer0 L0 = Layer0.getInstance(graph);\r
  64                     currentText = graph.getRelatedValue(resource, L0.SCLModule_definition, Bindings.STRING);\r
  65                     errorHappened = false;\r
  66                     return new Document(currentText != null ? currentText : "");\r
  67                 }\r
  68             });\r
  69         } catch (DatabaseException e) {\r
  70             StringWriter sw = new StringWriter();\r
  71             PrintWriter pw = new PrintWriter(sw);\r
  72             e.printStackTrace(pw);\r
  73             errorHappened = true;\r
  74             return new Document(sw.toString());\r
  75         }\r
  76     }\r
  77 \r
  78     // While this editor is active we do not want that this listener gets collected\r
  79     private UpdateListener listener = new UpdateListener() {\r
  80         @Override\r
  81         public void notifyAboutUpdate() {\r
  82             updateAnnotations();\r
  83         }\r
  84     };\r
  85 \r
  86     protected void updateAnnotations() {\r
  87         Simantics.getSession().asyncRequest(new ReadRequest() {\r
  88             @Override\r
  89             public void run(ReadGraph graph) throws DatabaseException {\r
  90                 if (!graph.hasStatement(resource))\r
  91                     return;\r
  92                 String moduleName = graph.getURI(resource);\r
  93                 SCLContext context = SCLContext.getCurrent();\r
  94                 context.put("graph", graph);\r
  95                 Failable<Module> result = SCLOsgi.MODULE_REPOSITORY.getModule(moduleName, listener);\r
  96                 \r
  97                 if(result instanceof Failure) {\r
  98                     Failure failure = (Failure)result;\r
  99                     setAnnotations(Arrays.asList(failure.errors));\r
 100                 }\r
 101                 else {\r
 102                     setAnnotations(Collections.<CompilationError>emptyList());\r
 103                 }\r
 104                 \r
 105                 SCLModuleEditorDocumentProvider.this.sourceViewer.updateCompletionAssistModuleName(moduleName);\r
 106             }\r
 107         });\r
 108     }\r
 109 \r
 110     protected void setAnnotations(List<CompilationError> errors) {\r
 111         synchronized(annotationModel.getLockObject()) {\r
 112             annotationModel.removeAllAnnotations();\r
 113             for(CompilationError error : errors) {\r
 114                 Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true,\r
 115                         error.description);\r
 116                 int begin = Locations.beginOf(error.location);\r
 117                 int end = Locations.endOf(error.location);\r
 118                 Position position = new Position(begin, end - begin);\r
 119                 annotationModel.addAnnotation(annotation, position);\r
 120             }\r
 121         }\r
 122     }\r
 123 \r
 124     boolean annotationsInitialized = false;\r
 125 \r
 126     @Override\r
 127     protected IAnnotationModel createAnnotationModel(Object element)\r
 128             throws CoreException {\r
 129         if(!annotationsInitialized) {\r
 130             updateAnnotations();\r
 131             annotationsInitialized = true;\r
 132         }\r
 133         return annotationModel;\r
 134     }\r
 135 \r
 136     @Override\r
 137     protected void doSaveDocument(IProgressMonitor monitor, Object element,\r
 138             IDocument document, boolean overwrite) throws CoreException {\r
 139         TimeLogger.resetTimeAndLog("SCLModuleEditorDocumentProvider.doSaveDocument");\r
 140         currentText = document.get();\r
 141         Simantics.getSession().asyncRequest(new WriteRequest() {\r
 142             @Override\r
 143             public void perform(WriteGraph graph) throws DatabaseException {\r
 144                 graph.markUndoPoint();\r
 145                 Layer0 L0 = Layer0.getInstance(graph);\r
 146                 graph.claimLiteral(resource, L0.SCLModule_definition, currentText, Bindings.STRING);\r
 147                 Layer0Utils.addCommentMetadata(graph, "Saved SCL Module " + graph.getRelatedValue2(resource, Layer0.getInstance(graph).HasName, Bindings.STRING));\r
 148             }\r
 149         });\r
 150     }\r
 151 \r
 152     @Override\r
 153     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {\r
 154         return null;\r
 155     }\r
 156 \r
 157     @Override\r
 158     public boolean isModifiable(Object element) {\r
 159         return !errorHappened;\r
 160     }\r
 161 \r
 162     @Override\r
 163     public boolean isReadOnly(Object element) {\r
 164         return errorHappened;\r
 165     }\r
 166 \r
 167     @Override\r
 168     public boolean canSaveDocument(Object element) {\r
 169         return !errorHappened && !getDocument(element).get().equals(currentText);\r
 170     }\r
 171 \r
 172 }\r