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

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