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

   1 package org.simantics.modeling.ui.componentTypeEditor;\r
   2 \r
   3 import org.eclipse.core.runtime.IExecutableExtension;\r
   4 import org.eclipse.core.runtime.IProgressMonitor;\r
   5 import org.eclipse.jface.text.ITextListener;\r
   6 import org.eclipse.jface.text.TextEvent;\r
   7 import org.eclipse.swt.widgets.Composite;\r
   8 import org.eclipse.ui.IEditorInput;\r
   9 import org.eclipse.ui.IEditorSite;\r
  10 import org.eclipse.ui.PartInitException;\r
  11 import org.eclipse.ui.part.EditorPart;\r
  12 import org.simantics.Simantics;\r
  13 import org.simantics.databoard.Bindings;\r
  14 import org.simantics.db.ReadGraph;\r
  15 import org.simantics.db.Resource;\r
  16 import org.simantics.db.WriteGraph;\r
  17 import org.simantics.db.common.request.ResourceRead;\r
  18 import org.simantics.db.common.request.UniqueRead;\r
  19 import org.simantics.db.common.request.WriteRequest;\r
  20 import org.simantics.db.exception.DatabaseException;\r
  21 import org.simantics.db.layer0.util.Layer0Utils;\r
  22 import org.simantics.db.procedure.Listener;\r
  23 import org.simantics.layer0.Layer0;\r
  24 import org.simantics.scl.compiler.errors.CompilationError;\r
  25 import org.simantics.scl.ui.editor.SCLTextEditorNew;\r
  26 import org.simantics.scl.ui.editor.TextAndErrors;\r
  27 import org.simantics.structural2.scl.procedural.CompileProceduralComponentTypeRequest;\r
  28 import org.simantics.structural2.scl.procedural.ProceduralComponentTypeCompilationException;\r
  29 import org.simantics.ui.workbench.IResourceEditorInput;\r
  30 import org.simantics.ui.workbench.TitleUpdater;\r
  31 import org.simantics.utils.ui.ErrorLogger;\r
  32 import org.simantics.utils.ui.SWTUtils;\r
  33 \r
  34 public class SCLEditorBase extends EditorPart implements IExecutableExtension {\r
  35     Resource inputResource;\r
  36     SCLTextEditorNew editor;\r
  37     String originalText;\r
  38 \r
  39     protected TextAndErrors getTextAndErrors(ReadGraph graph, Resource resource) throws DatabaseException {\r
  40         Layer0 L0 = Layer0.getInstance(graph);\r
  41         String text = graph.getValue(resource, Bindings.STRING);\r
  42         Resource componentType = graph.getPossibleObject(inputResource, L0.PropertyOf);\r
  43         CompilationError[] errors = CompilationError.EMPTY_ARRAY;\r
  44         if(componentType != null) {\r
  45             try { \r
  46                 graph.syncRequest(new CompileProceduralComponentTypeRequest(componentType));\r
  47             } catch(ProceduralComponentTypeCompilationException e) {\r
  48                 errors = e.errors;\r
  49             }\r
  50         }\r
  51         return new TextAndErrors(text, errors);\r
  52     }\r
  53     \r
  54     @Override\r
  55     public void createPartControl(Composite parent) {\r
  56         editor = new SCLTextEditorNew(parent, 0);\r
  57         \r
  58         Simantics.getSession().asyncRequest(new ResourceRead<TextAndErrors>(inputResource) {\r
  59             @Override\r
  60             public TextAndErrors perform(ReadGraph graph) throws DatabaseException {\r
  61                 return getTextAndErrors(graph, inputResource);\r
  62             }\r
  63         }, new Listener<TextAndErrors>() {\r
  64             @Override\r
  65             public void execute(final TextAndErrors textAndErrors) {\r
  66                 SWTUtils.asyncExec(editor, new Runnable() {\r
  67                     @Override\r
  68                     public void run() {\r
  69                         \r
  70                         if (editor.isDisposed())\r
  71                             return;\r
  72                         \r
  73                         // FIXME Every graph change new overrides user's current modifications  \r
  74                         \r
  75                         originalText = textAndErrors.text;\r
  76                         boolean textDiffers = !originalText.equals(editor.getContent());\r
  77                         editor.setContent(textDiffers ? originalText : null, textAndErrors.errors);\r
  78                         firePropertyChange(PROP_DIRTY);\r
  79                         \r
  80                         // This condition is only true for the first time when the editor is initialized\r
  81                         // This fixes platform issue #5192 https://www.simantics.org/redmine/issues/5192\r
  82                         if (textDiffers)\r
  83                             editor.getUndoManager().reset();\r
  84                     }\r
  85                 });\r
  86             }\r
  87 \r
  88             @Override\r
  89             public void exception(Throwable t) {\r
  90                 ErrorLogger.defaultLogError(t);\r
  91             }\r
  92 \r
  93             @Override\r
  94             public boolean isDisposed() {\r
  95                 return editor.isDisposed();\r
  96             }\r
  97 \r
  98         });\r
  99 \r
 100         editor.viewer.addTextListener(new ITextListener() {\r
 101             @Override\r
 102             public void textChanged(TextEvent event) {\r
 103                 firePropertyChange(PROP_DIRTY);\r
 104             }\r
 105         });\r
 106     }\r
 107     \r
 108     @Override\r
 109     public void setFocus() {\r
 110         editor.setFocus();\r
 111     }\r
 112 \r
 113     protected void save(WriteGraph graph, Resource resource, String text) throws DatabaseException {\r
 114         graph.claimValue(resource, text);\r
 115     }\r
 116     \r
 117     @Override\r
 118     public void doSave(IProgressMonitor monitor) {\r
 119         this.originalText = editor.getContent();\r
 120         firePropertyChange(PROP_DIRTY);\r
 121         try {\r
 122             Simantics.getSession().syncRequest(new WriteRequest() {\r
 123                 @Override\r
 124                 public void perform(WriteGraph graph) throws DatabaseException {\r
 125                     graph.markUndoPoint();\r
 126                         save(graph, inputResource, originalText);\r
 127                         Layer0Utils.addCommentMetadata(graph, "Saved SCL Module " + graph.getRelatedValue2(inputResource, Layer0.getInstance(graph).HasName, Bindings.STRING));\r
 128                 }\r
 129             });\r
 130         } catch (DatabaseException e) {\r
 131             e.printStackTrace();\r
 132         }\r
 133     }\r
 134 \r
 135     @Override\r
 136     public void doSaveAs() {\r
 137     }\r
 138 \r
 139     protected String computeTitle(ReadGraph graph, Resource inputResource) throws DatabaseException {\r
 140         Layer0 L0 = Layer0.getInstance(graph);\r
 141         Resource parent = graph.getPossibleObject(inputResource, L0.PropertyOf);\r
 142         if(parent == null)\r
 143             return "No parent";\r
 144         return graph.getPossibleRelatedValue(parent, L0.HasName) + " (Code)";\r
 145     }\r
 146     \r
 147     @Override\r
 148     public void init(IEditorSite site, final IEditorInput input)\r
 149             throws PartInitException {\r
 150         setSite(site);\r
 151         setInput(input);\r
 152         this.inputResource = ((IResourceEditorInput)input).getResource();\r
 153         \r
 154         Simantics.getSession().asyncRequest(\r
 155                 new UniqueRead<String>() {\r
 156                     @Override\r
 157                     public String perform(ReadGraph graph) throws DatabaseException {\r
 158                         return computeTitle(graph, inputResource);\r
 159                     }\r
 160                 },\r
 161                 new TitleUpdater(site.getShell().getDisplay(), partName -> {\r
 162                     setPartName(partName);\r
 163                     setTitleToolTip(partName);\r
 164                 }, () -> editor != null && editor.isDisposed()));\r
 165     }\r
 166 \r
 167     @Override\r
 168     public boolean isDirty() {\r
 169         return !editor.getContent().equals(originalText);\r
 170     }\r
 171 \r
 172     @Override\r
 173     public boolean isSaveAsAllowed() {\r
 174         return false;\r
 175     }\r
 176 \r
 177 }