bundles/org.simantics.document.swt.core/src/org/simantics/document/swt/core/widget/SCLTextEditor.java

   1 package org.simantics.document.swt.core.widget;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.widgets.Composite;
   5 import org.eclipse.ui.PlatformUI;
   6 import org.simantics.document.server.JSONObject;
   7 import org.simantics.document.server.handler.AbstractEventHandler;
   8 import org.simantics.document.server.io.CommandContextImpl;
   9 import org.simantics.document.swt.core.SWTDocument;
  10 import org.simantics.document.swt.core.base.LeafWidgetManager;
  11 import org.simantics.scl.ui.editor.SCLTextEditorNew;
  12 import org.simantics.scl.ui.editor.TextAndErrors;
  13 import org.simantics.utils.ui.workbench.FocusContextActivator;
  14
  15 public class SCLTextEditor extends LeafWidgetManager<SCLTextEditorNew> {
  16
  17         public static class State {
  18
  19                 final private SWTDocument document;
  20                 final private SCLTextEditorNew editor;
  21                 public AbstractEventHandler onModify;
  22
  23                 public State(SWTDocument document, SCLTextEditorNew editor) {
  24                         this.document = document;
  25                         this.editor = editor;
  26                 }
  27
  28                 public void fireText() {
  29                         if(onModify != null) {
  30                                 CommandContextImpl parameters = new CommandContextImpl();
  31                                 parameters.putString("text", editor.getContent());
  32                                 document.post(onModify, parameters);
  33                         }
  34                 }
  35
  36         }
  37
  38         @Override
  39         protected SCLTextEditorNew doCreateControl(SWTDocument document, Composite parent, JSONObject object) {
  40
  41                 SCLTextEditorNew editor = new SCLTextEditorNew(parent, SWT.NONE);
  42                 State state = new State(document, editor);
  43
  44                 editor.viewer.getTextWidget().setData("state", state);
  45                 new FocusContextActivator("org.simantics.document.swt.core.widget.SCLTextEditor", editor.viewer.getTextWidget(), PlatformUI.getWorkbench().getActiveWorkbenchWindow());
  46
  47                 return editor;
  48
  49         }
  50
  51         @Override
  52         protected void doUpdateProperties(SWTDocument document, SCLTextEditorNew control, JSONObject object) {
  53
  54                 if(control.isDisposed()) return;
  55
  56                 TextAndErrors textAndErrors = object.getValue("textAndErrors");
  57                 if(textAndErrors == null) return;
  58
  59                 // Disable updates during setContent
  60
  61                 int caret = control.viewer.getTextWidget().getCaretOffset();
  62
  63                 control.setContent(textAndErrors.text, textAndErrors.errors);
  64
  65                 // For updates, restore caret
  66                 control.viewer.getTextWidget().setCaretOffset(caret);
  67
  68                 final AbstractEventHandler onModify = object.getValue("onModify");
  69                 State state = (State)control.viewer.getTextWidget().getData("state");
  70                 state.onModify = onModify;
  71
  72         }
  73
  74 }