bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/SCLModuleEditorDocumentProvider.java

   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.structural2.utils.StructuralUtils;\r
  40 import org.simantics.ui.workbench.ResourceEditorInput;\r
  41 import org.simantics.utils.logging.TimeLogger;\r
  42 \r
  43 public class SCLModuleEditorDocumentProvider extends AbstractDocumentProvider {\r
  44 \r
  45     protected Resource resource;\r
  46     protected String currentText;\r
  47     protected boolean immutable;\r
  48     protected boolean errorHappened;\r
  49 \r
  50     protected AnnotationModel annotationModel = new AnnotationModel();\r
  51     private final SCLSourceViewerConfigurationNew sourceViewer;\r
  52 \r
  53     public SCLModuleEditorDocumentProvider(SCLSourceViewerConfigurationNew sourceViewer) {\r
  54         this.sourceViewer = sourceViewer;\r
  55     }\r
  56 \r
  57     @Override\r
  58     protected IDocument createDocument(Object element) throws CoreException {\r
  59         ResourceEditorInput input = (ResourceEditorInput)element;\r
  60         resource = input.getResource();\r
  61         try {\r
  62             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {\r
  63                 @Override\r
  64                 public Document perform(ReadGraph graph) throws DatabaseException {\r
  65                     Layer0 L0 = Layer0.getInstance(graph);\r
  66                     currentText = graph.getRelatedValue(resource, L0.SCLModule_definition, Bindings.STRING);\r
  67                     immutable = StructuralUtils.isImmutable(graph, resource);\r
  68                     errorHappened = false;\r
  69                     return new Document(currentText != null ? currentText : "");\r
  70                 }\r
  71             });\r
  72         } catch (DatabaseException e) {\r
  73             StringWriter sw = new StringWriter();\r
  74             PrintWriter pw = new PrintWriter(sw);\r
  75             e.printStackTrace(pw);\r
  76             errorHappened = true;\r
  77             return new Document(sw.toString());\r
  78         }\r
  79     }\r
  80 \r
  81     // While this editor is active we do not want that this listener gets collected\r
  82     private UpdateListener listener = new UpdateListener() {\r
  83         @Override\r
  84         public void notifyAboutUpdate() {\r
  85             updateAnnotations();\r
  86         }\r
  87     };\r
  88 \r
  89     protected void updateAnnotations() {\r
  90         Simantics.getSession().asyncRequest(new ReadRequest() {\r
  91             @Override\r
  92             public void run(ReadGraph graph) throws DatabaseException {\r
  93                 if (!graph.hasStatement(resource))\r
  94                     return;\r
  95                 String moduleName = graph.getURI(resource);\r
  96                 SCLContext context = SCLContext.getCurrent();\r
  97                 context.put("graph", graph);\r
  98                 Failable<Module> result = SCLOsgi.MODULE_REPOSITORY.getModule(moduleName, listener);\r
  99                 \r
 100                 if(result instanceof Failure) {\r
 101                     Failure failure = (Failure)result;\r
 102                     setAnnotations(Arrays.asList(failure.errors));\r
 103                 }\r
 104                 else {\r
 105                     setAnnotations(Collections.<CompilationError>emptyList());\r
 106                 }\r
 107                 \r
 108                 SCLModuleEditorDocumentProvider.this.sourceViewer.updateCompletionAssistModuleName(moduleName);\r
 109             }\r
 110         });\r
 111     }\r
 112 \r
 113     protected void setAnnotations(List<CompilationError> errors) {\r
 114         synchronized(annotationModel.getLockObject()) {\r
 115             annotationModel.removeAllAnnotations();\r
 116             for(CompilationError error : errors) {\r
 117                 Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true,\r
 118                         error.description);\r
 119                 int begin = Locations.beginOf(error.location);\r
 120                 int end = Locations.endOf(error.location);\r
 121                 Position position = new Position(begin, end - begin);\r
 122                 annotationModel.addAnnotation(annotation, position);\r
 123             }\r
 124         }\r
 125     }\r
 126 \r
 127     boolean annotationsInitialized = false;\r
 128 \r
 129     @Override\r
 130     protected IAnnotationModel createAnnotationModel(Object element)\r
 131             throws CoreException {\r
 132         if(!annotationsInitialized) {\r
 133             updateAnnotations();\r
 134             annotationsInitialized = true;\r
 135         }\r
 136         return annotationModel;\r
 137     }\r
 138 \r
 139     @Override\r
 140     protected void doSaveDocument(IProgressMonitor monitor, Object element,\r
 141             IDocument document, boolean overwrite) throws CoreException {\r
 142         TimeLogger.resetTimeAndLog("SCLModuleEditorDocumentProvider.doSaveDocument");\r
 143         currentText = document.get();\r
 144         Simantics.getSession().asyncRequest(new WriteRequest() {\r
 145             @Override\r
 146             public void perform(WriteGraph graph) throws DatabaseException {\r
 147                 graph.markUndoPoint();\r
 148                 Layer0 L0 = Layer0.getInstance(graph);\r
 149                 graph.claimLiteral(resource, L0.SCLModule_definition, currentText, Bindings.STRING);\r
 150                 Layer0Utils.addCommentMetadata(graph, "Saved SCL Module " + graph.getRelatedValue2(resource, Layer0.getInstance(graph).HasName, Bindings.STRING));\r
 151             }\r
 152         });\r
 153     }\r
 154 \r
 155     @Override\r
 156     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {\r
 157         return null;\r
 158     }\r
 159 \r
 160     @Override\r
 161     public boolean isModifiable(Object element) {\r
 162         return !errorHappened && !immutable;\r
 163     }\r
 164 \r
 165     @Override\r
 166     public boolean isReadOnly(Object element) {\r
 167         return errorHappened || immutable;\r
 168     }\r
 169 \r
 170 }\r