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

   1 package org.simantics.modeling.ui.componentTypeEditor;\r
   2 \r
   3 import java.io.PrintWriter;\r
   4 import java.io.StringWriter;\r
   5 \r
   6 import org.eclipse.core.runtime.CoreException;\r
   7 import org.eclipse.core.runtime.IProgressMonitor;\r
   8 import org.eclipse.jface.operation.IRunnableContext;\r
   9 import org.eclipse.jface.text.Document;\r
  10 import org.eclipse.jface.text.IDocument;\r
  11 import org.eclipse.jface.text.Position;\r
  12 import org.eclipse.jface.text.source.Annotation;\r
  13 import org.eclipse.jface.text.source.AnnotationModel;\r
  14 import org.eclipse.jface.text.source.IAnnotationModel;\r
  15 import org.eclipse.ui.texteditor.AbstractDocumentProvider;\r
  16 import org.simantics.Simantics;\r
  17 import org.simantics.databoard.Bindings;\r
  18 import org.simantics.db.ReadGraph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.db.WriteGraph;\r
  21 import org.simantics.db.common.request.UniqueRead;\r
  22 import org.simantics.db.common.request.WriteRequest;\r
  23 import org.simantics.db.exception.DatabaseException;\r
  24 import org.simantics.db.procedure.Listener;\r
  25 import org.simantics.db.request.Read;\r
  26 import org.simantics.modeling.ComponentTypeScriptRequest;\r
  27 import org.simantics.modeling.ComponentTypeScriptResult;\r
  28 import org.simantics.scl.compiler.errors.CompilationError;\r
  29 import org.simantics.scl.compiler.errors.Locations;\r
  30 import org.simantics.structural.stubs.StructuralResource2;\r
  31 import org.simantics.ui.workbench.ResourceEditorInput;\r
  32 import org.simantics.utils.logging.TimeLogger;\r
  33 \r
  34 public class ComponentTypeScriptDocumentProvider extends AbstractDocumentProvider {\r
  35 \r
  36     protected ComponentTypeScriptEditor editor;\r
  37     \r
  38     protected Resource resource;\r
  39     protected String currentText;\r
  40     protected boolean errorHappened;\r
  41     \r
  42     protected AnnotationModel annotationModel = new AnnotationModel();\r
  43     \r
  44     protected boolean annotationsInitialized = false;\r
  45     \r
  46     public ComponentTypeScriptDocumentProvider(ComponentTypeScriptEditor editor) {\r
  47         this.editor = editor;\r
  48     }\r
  49 \r
  50     @Override\r
  51     protected IDocument createDocument(Object element) throws CoreException {\r
  52         ResourceEditorInput input = (ResourceEditorInput)element;\r
  53         resource = input.getResource();\r
  54         try {\r
  55             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {\r
  56                 @Override\r
  57                 public Document perform(ReadGraph graph) throws DatabaseException {\r
  58                     StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
  59                     currentText = graph.getRelatedValue(resource, STR.ComponentTypeScript_code, Bindings.STRING);\r
  60                     errorHappened = false;\r
  61                     return new Document(currentText != null ? currentText : "");\r
  62                 }\r
  63             });\r
  64         } catch (DatabaseException e) {\r
  65             StringWriter sw = new StringWriter();\r
  66             PrintWriter pw = new PrintWriter(sw);\r
  67             e.printStackTrace(pw);\r
  68             errorHappened = true;\r
  69             return new Document(sw.toString());\r
  70         }\r
  71     }\r
  72     \r
  73     protected void updateAnnotations() {\r
  74         Simantics.getSession().asyncRequest(new Read<ComponentTypeScriptResult>() {\r
  75             @Override\r
  76             public ComponentTypeScriptResult perform(ReadGraph graph) throws DatabaseException {\r
  77                 // is this the correct way to obtain the parent?\r
  78                 StructuralResource2 str = StructuralResource2.getInstance(graph);\r
  79                 Resource componentType = graph.getSingleObject(resource, str.ComponentType_hasScript_Inverse);\r
  80                 \r
  81                 return graph.syncRequest(new ComponentTypeScriptRequest(resource, componentType));\r
  82             }\r
  83         }, new Listener<ComponentTypeScriptResult>() {\r
  84 \r
  85             @Override\r
  86             public void execute(ComponentTypeScriptResult result) {\r
  87                 synchronized(annotationModel.getLockObject()) {\r
  88                     annotationModel.removeAllAnnotations();\r
  89                     for(CompilationError error : result.getErrors()) {\r
  90                         Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true, error.description);\r
  91                         int begin = Locations.beginOf(error.location);\r
  92                         int end = Locations.endOf(error.location);\r
  93                         Position position = new Position(begin, end - begin);\r
  94                         annotationModel.addAnnotation(annotation, position);\r
  95                     }\r
  96                 }\r
  97             }\r
  98 \r
  99             @Override\r
 100             public void exception(Throwable t) {\r
 101                 t.printStackTrace();\r
 102             }\r
 103 \r
 104             @Override\r
 105             public boolean isDisposed() {\r
 106                 return editor.isDisposed();\r
 107             }\r
 108         });\r
 109     }\r
 110     \r
 111     @Override\r
 112     protected void doSaveDocument(IProgressMonitor monitor, Object element,\r
 113             IDocument document, boolean overwrite) throws CoreException {\r
 114         TimeLogger.resetTimeAndLog(getClass(), "doSaveDocument");\r
 115         currentText = document.get();\r
 116         Simantics.getSession().asyncRequest(new WriteRequest() {\r
 117             @Override\r
 118             public void perform(WriteGraph graph) throws DatabaseException {\r
 119                 graph.markUndoPoint();\r
 120                 StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
 121                 graph.claimLiteral(resource, STR.ComponentTypeScript_code, currentText, Bindings.STRING);\r
 122             }\r
 123         });\r
 124     }\r
 125 \r
 126     @Override\r
 127     protected IAnnotationModel createAnnotationModel(Object element) throws CoreException {\r
 128         if(!annotationsInitialized) {\r
 129             updateAnnotations();\r
 130             annotationsInitialized = true;\r
 131         }\r
 132         return annotationModel;\r
 133     }\r
 134 \r
 135     @Override\r
 136     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {\r
 137         return null;\r
 138     }\r
 139     \r
 140     @Override\r
 141     public boolean isModifiable(Object element) {\r
 142         return !errorHappened;\r
 143     }\r
 144 \r
 145     @Override\r
 146     public boolean isReadOnly(Object element) {\r
 147         return errorHappened;\r
 148     }\r
 149 \r
 150     @Override\r
 151     public boolean canSaveDocument(Object element) {\r
 152         return !errorHappened && !getDocument(element).get().equals(currentText);\r
 153     }\r
 154     \r
 155 }\r