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

   1 package org.simantics.modeling.ui.componentTypeEditor;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5
   6 import org.eclipse.core.runtime.CoreException;
   7 import org.eclipse.core.runtime.IProgressMonitor;
   8 import org.eclipse.jface.operation.IRunnableContext;
   9 import org.eclipse.jface.text.Document;
  10 import org.eclipse.jface.text.IDocument;
  11 import org.eclipse.jface.text.Position;
  12 import org.eclipse.jface.text.source.Annotation;
  13 import org.eclipse.jface.text.source.AnnotationModel;
  14 import org.eclipse.jface.text.source.IAnnotationModel;
  15 import org.eclipse.ui.texteditor.AbstractDocumentProvider;
  16 import org.simantics.Simantics;
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.WriteGraph;
  21 import org.simantics.db.common.request.UniqueRead;
  22 import org.simantics.db.common.request.WriteRequest;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.db.procedure.Listener;
  25 import org.simantics.db.request.Read;
  26 import org.simantics.modeling.ComponentTypeScriptRequest;
  27 import org.simantics.modeling.ComponentTypeScriptResult;
  28 import org.simantics.scl.compiler.errors.CompilationError;
  29 import org.simantics.scl.compiler.errors.Locations;
  30 import org.simantics.structural.stubs.StructuralResource2;
  31 import org.simantics.structural2.utils.StructuralUtils;
  32 import org.simantics.ui.workbench.ResourceEditorInput;
  33 import org.simantics.utils.logging.TimeLogger;
  34
  35 public class ComponentTypeScriptDocumentProvider extends AbstractDocumentProvider {
  36
  37     protected ComponentTypeScriptEditor editor;
  38
  39     protected Resource resource;
  40     protected String currentText;
  41     protected boolean immutable;
  42     protected boolean errorHappened;
  43
  44     protected AnnotationModel annotationModel = new AnnotationModel();
  45
  46     protected boolean annotationsInitialized = false;
  47
  48     public ComponentTypeScriptDocumentProvider(ComponentTypeScriptEditor editor) {
  49         this.editor = editor;
  50     }
  51
  52     @Override
  53     protected IDocument createDocument(Object element) throws CoreException {
  54         ResourceEditorInput input = (ResourceEditorInput)element;
  55         resource = input.getResource();
  56         try {
  57             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {
  58                 @Override
  59                 public Document perform(ReadGraph graph) throws DatabaseException {
  60                     StructuralResource2 STR = StructuralResource2.getInstance(graph);
  61                     currentText = graph.getRelatedValue(resource, STR.ComponentTypeScript_code, Bindings.STRING);
  62                     Resource owner = graph.getPossibleObject(resource, STR.ComponentType_hasScript_Inverse);
  63                     immutable = owner != null && StructuralUtils.isImmutable(graph, owner);
  64                     errorHappened = false;
  65                     return new Document(currentText != null ? currentText : ""); //$NON-NLS-1$
  66                 }
  67             });
  68         } catch (DatabaseException e) {
  69             StringWriter sw = new StringWriter();
  70             PrintWriter pw = new PrintWriter(sw);
  71             e.printStackTrace(pw);
  72             errorHappened = true;
  73             return new Document(sw.toString());
  74         }
  75     }
  76
  77     protected void updateAnnotations() {
  78         Simantics.getSession().asyncRequest(new Read<ComponentTypeScriptResult>() {
  79             @Override
  80             public ComponentTypeScriptResult perform(ReadGraph graph) throws DatabaseException {
  81                 // is this the correct way to obtain the parent?
  82                 StructuralResource2 str = StructuralResource2.getInstance(graph);
  83                 Resource componentType = graph.getSingleObject(resource, str.ComponentType_hasScript_Inverse);
  84
  85                 return graph.syncRequest(new ComponentTypeScriptRequest(resource, componentType));
  86             }
  87         }, new Listener<ComponentTypeScriptResult>() {
  88
  89             @Override
  90             public void execute(ComponentTypeScriptResult result) {
  91                 synchronized(annotationModel.getLockObject()) {
  92                     annotationModel.removeAllAnnotations();
  93                     for(CompilationError error : result.getErrors()) {
  94                         Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true, error.description); //$NON-NLS-1$
  95                         int begin = Locations.beginOf(error.location);
  96                         int end = Locations.endOf(error.location);
  97                         Position position = new Position(begin, end - begin);
  98                         annotationModel.addAnnotation(annotation, position);
  99                     }
 100                 }
 101             }
 102
 103             @Override
 104             public void exception(Throwable t) {
 105                 t.printStackTrace();
 106             }
 107
 108             @Override
 109             public boolean isDisposed() {
 110                 return editor.isDisposed();
 111             }
 112         });
 113     }
 114
 115     @Override
 116     protected void doSaveDocument(IProgressMonitor monitor, Object element,
 117             IDocument document, boolean overwrite) throws CoreException {
 118         TimeLogger.resetTimeAndLog(getClass(), "doSaveDocument"); //$NON-NLS-1$
 119         currentText = document.get();
 120         Simantics.getSession().asyncRequest(new WriteRequest() {
 121             @Override
 122             public void perform(WriteGraph graph) throws DatabaseException {
 123                 graph.markUndoPoint();
 124                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 125                 graph.claimLiteral(resource, STR.ComponentTypeScript_code, currentText, Bindings.STRING);
 126             }
 127         });
 128     }
 129
 130     @Override
 131     protected IAnnotationModel createAnnotationModel(Object element) throws CoreException {
 132         if(!annotationsInitialized) {
 133             updateAnnotations();
 134             annotationsInitialized = true;
 135         }
 136         return annotationModel;
 137     }
 138
 139     @Override
 140     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
 141         return null;
 142     }
 143
 144     @Override
 145     public boolean isModifiable(Object element) {
 146         return !errorHappened && !immutable;
 147     }
 148
 149     @Override
 150     public boolean isReadOnly(Object element) {
 151         return errorHappened || immutable;
 152     }
 153
 154 }