bundles/org.simantics.document.swt.core/src/org/simantics/document/swt/core/selection/DocumentTabContributor.java

   1 package org.simantics.document.swt.core.selection;\r
   2 \r
   3 import java.util.function.Consumer;\r
   4 \r
   5 import org.eclipse.jface.layout.GridDataFactory;\r
   6 import org.eclipse.jface.layout.GridLayoutFactory;\r
   7 import org.eclipse.jface.viewers.ISelection;\r
   8 import org.eclipse.jface.viewers.ISelectionProvider;\r
   9 import org.eclipse.jface.viewers.StructuredSelection;\r
  10 import org.eclipse.swt.SWT;\r
  11 import org.eclipse.swt.widgets.Composite;\r
  12 import org.eclipse.swt.widgets.Control;\r
  13 import org.eclipse.swt.widgets.Event;\r
  14 import org.eclipse.swt.widgets.Listener;\r
  15 import org.eclipse.ui.IWorkbenchSite;\r
  16 import org.simantics.Simantics;\r
  17 import org.simantics.browsing.ui.common.ErrorLogger;\r
  18 import org.simantics.browsing.ui.common.views.IFilterArea;\r
  19 import org.simantics.browsing.ui.common.views.IFilterAreaProvider;\r
  20 import org.simantics.browsing.ui.swt.PartNameListener;\r
  21 import org.simantics.db.ReadGraph;\r
  22 import org.simantics.db.common.procedure.adapter.ListenerSupport;\r
  23 import org.simantics.db.common.request.UniqueRead;\r
  24 import org.simantics.db.common.utils.Logger;\r
  25 import org.simantics.db.exception.DatabaseException;\r
  26 import org.simantics.db.layer0.variable.Variable;\r
  27 import org.simantics.db.management.ISessionContext;\r
  28 import org.simantics.db.request.Read;\r
  29 import org.simantics.document.swt.core.SWTDocumentClient;\r
  30 import org.simantics.document.swt.core.SWTViews;\r
  31 import org.simantics.selectionview.IPropertyTab;\r
  32 import org.simantics.selectionview.IPropertyTab2;\r
  33 import org.simantics.selectionview.PropertyTabContributor;\r
  34 import org.simantics.utils.ui.ISelectionUtils;\r
  35 import org.simantics.utils.ui.jface.ActiveSelectionProvider;\r
  36 \r
  37 final public class DocumentTabContributor implements PropertyTabContributor, ListenerSupport {\r
  38 \r
  39     // For ListenerSupport (supporting DB request listeners)\r
  40     protected boolean    disposed = false;\r
  41     protected ISelection input    = StructuredSelection.EMPTY;\r
  42     final protected String documentURI;\r
  43     private SWTDocumentClient client;\r
  44     \r
  45     protected ISelectionProvider selectionProvider = new ActiveSelectionProvider();\r
  46     \r
  47     public DocumentTabContributor(String documentURI) {\r
  48         this.documentURI = documentURI;\r
  49     }\r
  50 \r
  51     public void createControls(Composite body, IWorkbenchSite site) {\r
  52         \r
  53         client = new SWTDocumentClient(SWTViews.getMapping(), selectionProvider, site, body);\r
  54         \r
  55     }\r
  56 \r
  57     public IFilterArea getFilterArea() {\r
  58         return null;\r
  59     }\r
  60 \r
  61     public void requestFocus() {\r
  62     }\r
  63 \r
  64     public ISelectionProvider getSelectionProvider() {\r
  65         return selectionProvider; \r
  66     }\r
  67 \r
  68     public Read<String> getPartNameReadRequest(ISelection forSelection) {\r
  69         return null;\r
  70     }\r
  71 \r
  72     public void updatePartName(ISelection forSelection, Consumer<String> updateCallback) {\r
  73         Read<String> read = getPartNameReadRequest(forSelection);\r
  74         if (read == null) {\r
  75             updateCallback.accept("Selection");\r
  76         } else {\r
  77             Simantics.getSession().asyncRequest(read, new PartNameListener(updateCallback, this));\r
  78         }\r
  79     }\r
  80 \r
  81     public void updatePartName(Consumer<String> updateCallback) {\r
  82         updatePartName(input, updateCallback);\r
  83     }\r
  84 \r
  85     protected void dispose() {\r
  86         this.disposed = true;\r
  87     }\r
  88 \r
  89     @Override\r
  90     public void exception(Throwable t) {\r
  91         ErrorLogger.defaultLogError("PropertyTabContributorImpl received unexpected exception.", t);\r
  92     }\r
  93 \r
  94     @Override\r
  95     public boolean isDisposed() {\r
  96         return disposed;\r
  97     }\r
  98 \r
  99     public void createControl(Composite parent, final IWorkbenchSite site) {\r
 100 \r
 101         class TabComposite extends Composite {\r
 102             public TabComposite(Composite parent) {\r
 103                 super(parent, 0);\r
 104 \r
 105                 GridLayoutFactory.fillDefaults().applyTo(parent);\r
 106                 GridDataFactory.fillDefaults().span(1, 1).grab(true, true).applyTo(this);\r
 107 \r
 108                 Composite body = this;\r
 109                 GridLayoutFactory.fillDefaults().spacing(0, 0).equalWidth(false).numColumns(1).applyTo(body);\r
 110 \r
 111                 try {\r
 112                         DocumentTabContributor.this.createControls(body, site);\r
 113                 } catch (Throwable t) {\r
 114                     ErrorLogger.defaultLogError(t);\r
 115                 }\r
 116             }\r
 117         }\r
 118 \r
 119         final TabComposite tc = new TabComposite(parent);\r
 120         tc.addListener(SWT.Dispose, new Listener() {\r
 121             public void handleEvent(Event e) {\r
 122                 DocumentTabContributor.this.dispose();\r
 123             }\r
 124         });\r
 125     }\r
 126 \r
 127     @Override\r
 128     public IPropertyTab create(Composite parent, IWorkbenchSite site, ISessionContext context, Object input) {\r
 129         IPropertyTab tab = new Tab(site, parent);\r
 130         tab.createControl((Composite) tab.getControl(), context);\r
 131         return tab;\r
 132     }\r
 133 \r
 134     class Tab extends Composite implements IPropertyTab2, IFilterAreaProvider {\r
 135 \r
 136         final IWorkbenchSite    site;\r
 137         \r
 138         public Tab(IWorkbenchSite site, Composite parent) {\r
 139             super(parent, SWT.NONE);\r
 140             this.site = site;\r
 141         }\r
 142 \r
 143         @Override\r
 144         public void createControl(Composite parent, ISessionContext context) {\r
 145                 DocumentTabContributor.this.createControl(parent, site);\r
 146         }\r
 147 \r
 148         @Override\r
 149         public Control getControl() {\r
 150             return this;\r
 151         }\r
 152 \r
 153         @Override\r
 154         public boolean isDisposed() {\r
 155             return super.isDisposed();\r
 156         }\r
 157 \r
 158         @Override\r
 159         public void requestFocus() {\r
 160                 DocumentTabContributor.this.requestFocus();\r
 161         }\r
 162 \r
 163         @Override\r
 164         public void setInput(ISessionContext context, ISelection selection, boolean force) {\r
 165                 \r
 166                 DocumentTabContributor.this.input = selection;\r
 167 \r
 168                         try {\r
 169                                 \r
 170                                 String input = Simantics.getSession().syncRequest(new UniqueRead<String>() {\r
 171 \r
 172                                         @Override\r
 173                                         public String perform(ReadGraph graph) throws DatabaseException {\r
 174                                                 Variable var = ISelectionUtils.filterSingleSelection(DocumentTabContributor.this.input, Variable.class);\r
 175                                                 if(var == null) return null;\r
 176                                                 return var.getURI(graph).substring("http:/".length());\r
 177                                         }\r
 178 \r
 179                                 });\r
 180                                 \r
 181                                 ListenerSupport support = new ListenerSupport() {\r
 182 \r
 183                                         @Override\r
 184                                         public void exception(Throwable t) {\r
 185                                                 Logger.defaultLogError(t);\r
 186                                         }\r
 187 \r
 188                                         @Override\r
 189                                         public boolean isDisposed() {\r
 190                                                 return DocumentTabContributor.this.isDisposed();\r
 191                                         }\r
 192                                         \r
 193                                 };\r
 194                                 \r
 195                                 if(input != null) {\r
 196                                         client.track(support, documentURI, input);\r
 197                                         layout(true, true);\r
 198                                 }\r
 199                         \r
 200                         } catch (DatabaseException e) {\r
 201                                 Logger.defaultLogError(e);\r
 202                         }\r
 203             \r
 204         }\r
 205 \r
 206         @Override\r
 207         public ISelectionProvider getSelectionProvider() {\r
 208             return DocumentTabContributor.this.getSelectionProvider();\r
 209         }\r
 210 \r
 211         @Override\r
 212         public IFilterArea getFilterArea() {\r
 213             return DocumentTabContributor.this.getFilterArea();\r
 214         }\r
 215 \r
 216         @Override\r
 217         public void updatePartName(Consumer<String> updateCallback) {\r
 218                 DocumentTabContributor.this.updatePartName(input, updateCallback);\r
 219         }\r
 220 \r
 221     }\r
 222     \r
 223     @Override\r
 224     public int hashCode() {\r
 225         return documentURI.hashCode();\r
 226     }\r
 227     \r
 228     @Override\r
 229     public boolean equals(Object object) {\r
 230         \r
 231         if (this == object)\r
 232             return true;\r
 233         else if (object == null)\r
 234             return false;\r
 235         else if (!(object instanceof DocumentTabContributor))\r
 236             return false;\r
 237 \r
 238         DocumentTabContributor dtc = (DocumentTabContributor)object;\r
 239         return documentURI.equals(dtc.documentURI);\r
 240         \r
 241     }\r
 242         \r
 243 }\r