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

   1 package org.simantics.modeling.ui.componentTypeEditor;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5 import java.util.Arrays;
   6 import java.util.Collections;
   7 import java.util.List;
   8
   9 import org.eclipse.core.runtime.CoreException;
  10 import org.eclipse.core.runtime.IProgressMonitor;
  11 import org.eclipse.jface.operation.IRunnableContext;
  12 import org.eclipse.jface.text.Document;
  13 import org.eclipse.jface.text.IDocument;
  14 import org.eclipse.jface.text.Position;
  15 import org.eclipse.jface.text.source.Annotation;
  16 import org.eclipse.jface.text.source.AnnotationModel;
  17 import org.eclipse.jface.text.source.IAnnotationModel;
  18 import org.eclipse.ui.texteditor.AbstractDocumentProvider;
  19 import org.simantics.Simantics;
  20 import org.simantics.databoard.Bindings;
  21 import org.simantics.db.ReadGraph;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.WriteGraph;
  24 import org.simantics.db.common.request.ReadRequest;
  25 import org.simantics.db.common.request.UniqueRead;
  26 import org.simantics.db.common.request.WriteRequest;
  27 import org.simantics.db.exception.DatabaseException;
  28 import org.simantics.db.layer0.util.Layer0Utils;
  29 import org.simantics.layer0.Layer0;
  30 import org.simantics.scl.compiler.errors.CompilationError;
  31 import org.simantics.scl.compiler.errors.Failable;
  32 import org.simantics.scl.compiler.errors.Failure;
  33 import org.simantics.scl.compiler.errors.Locations;
  34 import org.simantics.scl.compiler.module.Module;
  35 import org.simantics.scl.compiler.module.repository.UpdateListener;
  36 import org.simantics.scl.osgi.SCLOsgi;
  37 import org.simantics.scl.runtime.SCLContext;
  38 import org.simantics.scl.ui.editor.SCLSourceViewerConfigurationNew;
  39 import org.simantics.structural2.utils.StructuralUtils;
  40 import org.simantics.ui.workbench.ResourceEditorInput;
  41 import org.simantics.utils.logging.TimeLogger;
  42
  43 public class SCLModuleEditorDocumentProvider extends AbstractDocumentProvider {
  44
  45     protected Resource resource;
  46     protected String currentText;
  47     protected boolean immutable;
  48     protected boolean errorHappened;
  49
  50     protected AnnotationModel annotationModel = new AnnotationModel();
  51     private final SCLSourceViewerConfigurationNew sourceViewer;
  52
  53     public SCLModuleEditorDocumentProvider(SCLSourceViewerConfigurationNew sourceViewer) {
  54         this.sourceViewer = sourceViewer;
  55     }
  56
  57     @Override
  58     protected IDocument createDocument(Object element) throws CoreException {
  59         ResourceEditorInput input = (ResourceEditorInput)element;
  60         resource = input.getResource();
  61         try {
  62             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {
  63                 @Override
  64                 public Document perform(ReadGraph graph) throws DatabaseException {
  65                     Layer0 L0 = Layer0.getInstance(graph);
  66                     currentText = graph.getRelatedValue(resource, L0.SCLModule_definition, Bindings.STRING);
  67                     immutable = StructuralUtils.isImmutable(graph, resource);
  68                     errorHappened = false;
  69                     return new Document(currentText != null ? currentText : "");
  70                 }
  71             });
  72         } catch (DatabaseException e) {
  73             StringWriter sw = new StringWriter();
  74             PrintWriter pw = new PrintWriter(sw);
  75             e.printStackTrace(pw);
  76             errorHappened = true;
  77             return new Document(sw.toString());
  78         }
  79     }
  80
  81     // While this editor is active we do not want that this listener gets collected
  82     private UpdateListener listener = new UpdateListener() {
  83         @Override
  84         public void notifyAboutUpdate() {
  85             updateAnnotations();
  86         }
  87     };
  88
  89     protected void updateAnnotations() {
  90         Simantics.getSession().asyncRequest(new ReadRequest() {
  91             @Override
  92             public void run(ReadGraph graph) throws DatabaseException {
  93                 if (!graph.hasStatement(resource))
  94                     return;
  95                 String moduleName = graph.getURI(resource);
  96                 SCLContext context = SCLContext.getCurrent();
  97                 context.put("graph", graph);
  98                 Failable<Module> result = SCLOsgi.MODULE_REPOSITORY.getModule(moduleName, listener);
  99
 100                 if(result instanceof Failure) {
 101                     Failure failure = (Failure)result;
 102                     setAnnotations(Arrays.asList(failure.errors));
 103                 }
 104                 else {
 105                     setAnnotations(Collections.<CompilationError>emptyList());
 106                 }
 107
 108                 SCLModuleEditorDocumentProvider.this.sourceViewer.updateCompletionAssistModuleName(moduleName);
 109             }
 110         });
 111     }
 112
 113     protected void setAnnotations(List<CompilationError> errors) {
 114         synchronized(annotationModel.getLockObject()) {
 115             annotationModel.removeAllAnnotations();
 116             for(CompilationError error : errors) {
 117                 Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true,
 118                         error.description);
 119                 int begin = Locations.beginOf(error.location);
 120                 int end = Locations.endOf(error.location);
 121                 Position position = new Position(begin, end - begin);
 122                 annotationModel.addAnnotation(annotation, position);
 123             }
 124         }
 125     }
 126
 127     boolean annotationsInitialized = false;
 128
 129     @Override
 130     protected IAnnotationModel createAnnotationModel(Object element)
 131             throws CoreException {
 132         if(!annotationsInitialized) {
 133             updateAnnotations();
 134             annotationsInitialized = true;
 135         }
 136         return annotationModel;
 137     }
 138
 139     @Override
 140     protected void doSaveDocument(IProgressMonitor monitor, Object element,
 141             IDocument document, boolean overwrite) throws CoreException {
 142         TimeLogger.resetTimeAndLog("SCLModuleEditorDocumentProvider.doSaveDocument");
 143         currentText = document.get();
 144         Simantics.getSession().asyncRequest(new WriteRequest() {
 145             @Override
 146             public void perform(WriteGraph graph) throws DatabaseException {
 147                 graph.markUndoPoint();
 148                 Layer0 L0 = Layer0.getInstance(graph);
 149                 graph.claimLiteral(resource, L0.SCLModule_definition, currentText, Bindings.STRING);
 150                 Layer0Utils.addCommentMetadata(graph, "Saved SCL Module " + graph.getRelatedValue2(resource, Layer0.getInstance(graph).HasName, Bindings.STRING));
 151             }
 152         });
 153     }
 154
 155     @Override
 156     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
 157         return null;
 158     }
 159
 160     @Override
 161     public boolean isModifiable(Object element) {
 162         return !errorHappened && !immutable;
 163     }
 164
 165     @Override
 166     public boolean isReadOnly(Object element) {
 167         return errorHappened || immutable;
 168     }
 169
 170 }