bundles/org.simantics.document.ui/src/org/simantics/document/ui/CSSEditor.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.document.ui;
  13
  14 import java.util.function.Supplier;
  15
  16 import org.eclipse.swt.widgets.Composite;
  17 import org.eclipse.swt.widgets.Display;
  18 import org.eclipse.ui.IEditorInput;
  19 import org.eclipse.ui.IEditorSite;
  20 import org.eclipse.ui.PartInitException;
  21 import org.eclipse.ui.PlatformUI;
  22 import org.eclipse.ui.editors.text.TextEditor;
  23 import org.eclipse.ui.texteditor.ITextEditorActionConstants;
  24 import org.eclipse.ui.texteditor.StatusLineContributionItem;
  25 import org.simantics.Simantics;
  26 import org.simantics.db.Session;
  27 import org.simantics.db.common.request.ParametrizedRead;
  28 import org.simantics.db.exception.DatabaseException;
  29 import org.simantics.db.layer0.request.combinations.Combinators;
  30 import org.simantics.ui.workbench.IResourceEditorInput;
  31 import org.simantics.ui.workbench.ResourceEditorSupport;
  32 import org.simantics.ui.workbench.TitleUpdater;
  33 import org.simantics.ui.workbench.TitleWithParentNameRequest;
  34 import org.simantics.ui.workbench.ToolTipRequest;
  35 import org.simantics.ui.workbench.editor.input.InputValidationCombinators;
  36
  37
  38 /**
  39  * @author Antti Villberg;
  40  */
  41 public class CSSEditor extends TextEditor {
  42
  43         public static final String EDITOR_ID = "org.simantics.document.ui.csseditor";
  44
  45     private boolean disposed = false;
  46
  47     private ParametrizedRead<IResourceEditorInput, Boolean> INPUT_VALIDATOR =
  48             Combinators.compose(
  49                     InputValidationCombinators.hasURI(),
  50                     InputValidationCombinators.extractInputResource()
  51             );
  52
  53     private ResourceEditorSupport support;
  54
  55     public CSSEditor() {
  56         super();
  57         preInitialize();
  58     }
  59
  60     @Override
  61     public boolean isTabsToSpacesConversionEnabled() {
  62         return true;
  63     }
  64
  65     protected void preInitialize() {
  66         //showOverviewRuler();
  67         Display display = PlatformUI.getWorkbench().getDisplay();
  68         CSSSourceViewerConfiguration sourceViewer = new CSSSourceViewerConfiguration(display, new SharedTextColors(display));
  69         setDocumentProvider(new CSSModuleEditorDocumentProvider(sourceViewer));
  70         setSourceViewerConfiguration(sourceViewer);
  71     }
  72
  73     protected ParametrizedRead<IResourceEditorInput, Boolean> getInputValidator() {
  74         return INPUT_VALIDATOR;
  75     }
  76
  77     @Override
  78     public void init(IEditorSite site, IEditorInput input)
  79             throws PartInitException {
  80         super.init(site, input);
  81
  82         support = new ResourceEditorSupport(this, getInputValidator());
  83         support.activateValidation();
  84         try {
  85             getResourceInput().init(null);
  86         } catch (DatabaseException e) {
  87             throw new PartInitException("Failed to initialize " + input, e);
  88         }
  89     }
  90
  91     protected IResourceEditorInput getResourceInput() {
  92         return (IResourceEditorInput) getEditorInput();
  93     }
  94
  95     @Override
  96     public void createPartControl(Composite parent) {
  97         super.createPartControl(parent);
  98         StatusLineContributionItem statusLineContribution = new StatusLineContributionItem(
  99                 ITextEditorActionConstants.STATUS_CATEGORY_INPUT_POSITION,
 100                 true, 14);
 101         setStatusField(statusLineContribution,
 102                 ITextEditorActionConstants.STATUS_CATEGORY_INPUT_POSITION);
 103         getEditorSite().getActionBars().getStatusLineManager().add(statusLineContribution);
 104         getEditorSite().getActionBars().updateActionBars();
 105         updatePartName();
 106     }
 107
 108     protected void updatePartName() {
 109         setPartName(getEditorInput().getName());
 110
 111         Session session = Simantics.peekSession();
 112         if (session != null) {
 113             Supplier<Boolean> disposedCallback = this::isDisposed;
 114             session.asyncRequest(
 115                     new TitleWithParentNameRequest(getResourceInput()),
 116                     new TitleUpdater(getSite().getShell().getDisplay(), this::setPartName, disposedCallback));
 117             session.asyncRequest(
 118                     new ToolTipRequest(getSite().getId(), getResourceInput()),
 119                     new TitleUpdater(getSite().getShell().getDisplay(), this::setTitleToolTip, disposedCallback));
 120         }
 121     }
 122
 123     @Override
 124     public void dispose() {
 125         disposed = true;
 126         if (support != null) {
 127             support.dispose();
 128             support = null;
 129         }
 130         super.dispose();
 131     }
 132
 133     public boolean isDisposed() {
 134         return disposed;
 135     }
 136
 137 }