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

   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.Collection;
   7 import java.util.Collections;
   8
   9 import org.eclipse.core.runtime.CoreException;
  10 import org.eclipse.core.runtime.IProgressMonitor;
  11 import org.eclipse.core.runtime.IStatus;
  12 import org.eclipse.core.runtime.Status;
  13 import org.eclipse.jface.text.Document;
  14 import org.eclipse.jface.text.IDocument;
  15 import org.eclipse.swt.widgets.Display;
  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.ResourceRead;
  22 import org.simantics.db.common.request.UniqueRead;
  23 import org.simantics.db.common.request.WriteRequest;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.db.layer0.util.Layer0Utils;
  26 import org.simantics.db.procedure.Listener;
  27 import org.simantics.diagram.stubs.DiagramResource;
  28 import org.simantics.layer0.Layer0;
  29 import org.simantics.modeling.ModelingResources;
  30 import org.simantics.modeling.ui.Activator;
  31 import org.simantics.scl.compiler.errors.CompilationError;
  32 import org.simantics.scl.ui.editor.SCLSourceViewerConfigurationNew;
  33 import org.simantics.scl.ui.editor.TextAndErrors;
  34 import org.simantics.ui.workbench.ResourceEditorInput;
  35 import org.simantics.utils.logging.TimeLogger;
  36 import org.simantics.utils.ui.SWTUtils;
  37
  38 public class SymbolDropHandlerDocumentProvider extends SCLModuleEditorDocumentProvider {
  39
  40     Display display;
  41     SCLModuleEditor editor;
  42
  43     public SymbolDropHandlerDocumentProvider(SCLSourceViewerConfigurationNew sourceViewer, Display display, SCLModuleEditor editor) {
  44         super(sourceViewer);
  45         this.display = display;
  46         this.editor = editor;
  47     }
  48
  49     @Override
  50     protected IDocument createDocument(Object element) throws CoreException {
  51         ResourceEditorInput input = (ResourceEditorInput)element;
  52         resource = input.getResource();
  53         try {
  54             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {
  55                 @Override
  56                 public Document perform(ReadGraph graph) throws DatabaseException {
  57                         return new Document(getText(graph));
  58                 }
  59             });
  60         } catch (DatabaseException e) {
  61             StringWriter sw = new StringWriter();
  62             PrintWriter pw = new PrintWriter(sw);
  63             e.printStackTrace(pw);
  64             return new Document(sw.toString());
  65         }
  66     }
  67
  68     private String getText(ReadGraph graph) throws DatabaseException {
  69         Layer0 L0 = Layer0.getInstance(graph);
  70         DiagramResource DIA = DiagramResource.getInstance(graph);
  71         for(Resource text : graph.getAssertedObjects(resource, DIA.symbolDropHandler)) {
  72                 errorHappened = false;
  73                 return graph.getRelatedValue(text, L0.SCLValue_expression, Bindings.STRING);
  74         }
  75         return ""; //$NON-NLS-1$
  76     }
  77
  78     protected void updateAnnotations() {
  79         Simantics.getSession().asyncRequest(new ResourceRead<TextAndErrors>(resource) {
  80             @Override
  81             public TextAndErrors perform(ReadGraph graph) throws DatabaseException {
  82                 return new TextAndErrors(getText(graph), CompilationError.EMPTY_ARRAY);
  83             }
  84         }, new Listener<TextAndErrors>() {
  85             @Override
  86             public void execute(final TextAndErrors textAndErrors) {
  87                 if (editor.isDisposed())
  88                     return;
  89                 SWTUtils.asyncExec(display, new Runnable() {
  90                     @Override
  91                     public void run() {
  92                         if (editor.isDisposed())
  93                             return;
  94                         if(textAndErrors.errors.length > 0) {
  95                             setAnnotations(Arrays.asList(textAndErrors.errors));
  96                         } else {
  97                             setAnnotations(Collections.<CompilationError>emptyList());
  98                         }
  99                     }
 100                 });
 101             }
 102
 103             @Override
 104             public void exception(Throwable t) {
 105                 Activator.getDefault().getLog().log(
 106                         new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.SymbolDropHandlerDocumentProvider_ActivatorInternalError, t));
 107             }
 108
 109             @Override
 110             public boolean isDisposed() {
 111                 return editor.isDisposed();
 112             }
 113         });
 114     }
 115
 116     @Override
 117     protected void doSaveDocument(IProgressMonitor monitor, Object element,
 118             IDocument document, boolean overwrite) throws CoreException {
 119         TimeLogger.resetTimeAndLog(getClass(), "doSaveDocument"); //$NON-NLS-1$
 120         currentText = document.get();
 121         Simantics.getSession().asyncRequest(new WriteRequest() {
 122             @Override
 123             public void perform(WriteGraph graph) throws DatabaseException {
 124                 graph.markUndoPoint();
 125                 Layer0 L0 = Layer0.getInstance(graph);
 126                 DiagramResource DIA = DiagramResource.getInstance(graph);
 127                 Collection<Resource> ass = graph.getAssertedObjects(resource, DIA.symbolDropHandler);
 128                 if(ass.size() == 0) {
 129
 130                         ModelingResources MOD = ModelingResources.getInstance(graph);
 131                         Resource newValue = graph.newResource();
 132                         graph.claim(newValue, L0.InstanceOf, MOD.SCLValue);
 133                         graph.claimLiteral(newValue, L0.HasValueType, "[WorkbenchSelectionElement] -> <WriteGraph,Proc> ()", Bindings.STRING); //$NON-NLS-1$
 134                         graph.claimLiteral(newValue, L0.SCLValue_expression, currentText, Bindings.STRING);
 135
 136                         Layer0Utils.assert_(graph, resource, DIA.symbolDropHandler, newValue);
 137                         return;
 138
 139                 }
 140
 141                 for(Resource text : ass) {
 142                         graph.claimLiteral(text, L0.SCLValue_expression, currentText, Bindings.STRING);
 143                         return;
 144                 }
 145
 146             }
 147         });
 148     }
 149
 150 }