Support for SCL script database storage, editing and execution

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / scl / scriptEditor / SCLScriptEditorDocumentProvider.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/scl/scriptEditor/SCLScriptEditorDocumentProvider.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/scl/scriptEditor/SCLScriptEditorDocumentProvider.java
new file mode 100644 (file)
index 0000000..c58e72d
--- /dev/null
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/scl/scriptEditor/SCLScriptEditorDocumentProvider.java
@@ -0,0 +1,112 @@
+/*******************************************************************************
+ * Copyright (c) 2017 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.modeling.ui.scl.scriptEditor;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.jface.operation.IRunnableContext;
+import org.eclipse.jface.text.Document;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IDocumentPartitioner;
+import org.eclipse.jface.text.rules.FastPartitioner;
+import org.eclipse.jface.text.source.AnnotationModel;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.ui.texteditor.AbstractDocumentProvider;
+import org.simantics.scl.osgi.SCLOsgi;
+import org.simantics.scl.ui.editor.SCLSourceViewerConfigurationNew;
+import org.simantics.scl.ui.editor2.SCLPartitionScanner;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.31.0
+ */
+public class SCLScriptEditorDocumentProvider extends AbstractDocumentProvider {
+
+    private SCLSourceViewerConfigurationNew sourceViewer;
+    protected AnnotationModel annotationModel = new AnnotationModel();
+
+    private Object currentElement;
+    private SCLScriptSource currentSource;
+
+    public SCLScriptEditorDocumentProvider(SCLSourceViewerConfigurationNew sourceViewer) {
+        this.sourceViewer = sourceViewer;
+    }
+
+    private void updateScriptSource(Object input) {
+        if (currentElement != null && currentElement.equals(input))
+            return;
+        currentElement = input;
+        if (!(currentElement instanceof SCLScriptEditorInput))
+            return;
+
+        SCLScriptSource source = ((SCLScriptEditorInput) currentElement).getAdapter(SCLScriptSource.class);
+        if (source != null)
+            currentSource = source;
+    }
+
+    @Override
+    protected IDocument createDocument(Object element) throws CoreException {
+        updateScriptSource(element);
+        if (currentSource == null)
+            throw new CoreException(
+                    new Status(Status.ERROR, "org.simantics.scl.ui", "Source for the SCL module could not be found."));
+        Document document = new Document(currentSource.getSourceText());
+        IDocumentPartitioner partitioner = new FastPartitioner(new SCLPartitionScanner(), SCLPartitionScanner.PARTITION_TYPES);
+        partitioner.connect(document);
+        document.setDocumentPartitioner(partitioner);
+        sourceViewer.updateCompletionAssistModuleName(currentSource.getScriptURI());
+        return document;
+    }
+
+    @Override
+    public void changed(Object element) {
+        updateScriptSource(element);
+    }
+
+    @Override
+    public void aboutToChange(Object element) {
+        super.aboutToChange(element);
+    }
+
+    @Override
+    public boolean isModifiable(Object element) {
+        if (currentSource == null)
+            return false;
+        return currentSource.isUpdateable();
+    }
+
+    @Override
+    public boolean isReadOnly(Object element) {
+        return !isModifiable(element);
+    }
+
+    @Override
+    protected IAnnotationModel createAnnotationModel(Object element) throws CoreException {
+        SCLScriptEditorInput input = (SCLScriptEditorInput) element;
+        return new SCLScriptAnnotationModel(input, SCLOsgi.MODULE_REPOSITORY);
+    }
+
+    @Override
+    protected void doSaveDocument(IProgressMonitor monitor, Object element,
+            IDocument document, boolean overwrite) throws CoreException
+    {
+        if (currentSource != null)
+            currentSource.update(document.get());
+    }
+
+    @Override
+    protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
+        return null;
+    }
+
+}