bundles/org.simantics.graphfile/src/org/simantics/graphfile/hack/GraphFileEditorInput.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2013 Association for Decentralized Information Management\r
   3  * in 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.graphfile.hack;\r
  13 \r
  14 import java.net.URI;\r
  15 \r
  16 import org.eclipse.core.resources.IFile;\r
  17 import org.eclipse.core.resources.IStorage;\r
  18 import org.eclipse.core.runtime.IPath;\r
  19 import org.eclipse.core.runtime.PlatformObject;\r
  20 import org.eclipse.core.runtime.content.IContentType;\r
  21 import org.eclipse.jface.resource.ImageDescriptor;\r
  22 import org.eclipse.ui.IFileEditorInput;\r
  23 import org.eclipse.ui.IMemento;\r
  24 import org.eclipse.ui.IPathEditorInput;\r
  25 import org.eclipse.ui.IPersistableElement;\r
  26 import org.eclipse.ui.IURIEditorInput;\r
  27 import org.eclipse.ui.PlatformUI;\r
  28 import org.eclipse.ui.ide.IDE;\r
  29 import org.eclipse.ui.model.IWorkbenchAdapter;\r
  30 \r
  31 \r
  32 /**\r
  33  * Editor input for files stored in the graph.\r
  34  * \r
  35  * Note: this class is required, since FileEditorInput is not able to load/save GraphFile references.\r
  36  * Contents of this class are mostly copy-pasted from FileEditorInput.\r
  37  * \r
  38  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
  39  *\r
  40  */\r
  41 public class GraphFileEditorInput  extends PlatformObject implements IFileEditorInput, IPathEditorInput, IURIEditorInput,\r
  42  IPersistableElement {\r
  43 private GraphFile file;\r
  44         \r
  45 \r
  46         /**\r
  47          * Creates an editor input based of the given file resource.\r
  48          *\r
  49          * @param file the file resource\r
  50          */\r
  51         public GraphFileEditorInput(GraphFile file) {\r
  52                 if (file == null)\r
  53                         throw new IllegalArgumentException();\r
  54                 this.file = file;\r
  55         \r
  56         }\r
  57 \r
  58         /* (non-Javadoc)\r
  59          * Method declared on Object.\r
  60          */\r
  61         public int hashCode() {\r
  62                 return file.hashCode();\r
  63         }\r
  64 \r
  65         /* (non-Javadoc)\r
  66          * Method declared on Object.\r
  67          *\r
  68          * The <code>FileEditorInput</code> implementation of this <code>Object</code>\r
  69          * method bases the equality of two <code>FileEditorInput</code> objects on the\r
  70          * equality of their underlying <code>IFile</code> resources.\r
  71          */\r
  72         public boolean equals(Object obj) {\r
  73                 if (this == obj) {\r
  74                         return true;\r
  75                 }\r
  76                 if (!(obj instanceof IFileEditorInput)) {\r
  77                         return false;\r
  78                 }\r
  79                 IFileEditorInput other = (IFileEditorInput) obj;\r
  80                 return file.equals(other.getFile());\r
  81         }\r
  82 \r
  83         /* (non-Javadoc)\r
  84          * Method declared on IEditorInput.\r
  85          */\r
  86         public boolean exists() {\r
  87                 return file.exists();\r
  88         }\r
  89 \r
  90         /* (non-Javadoc)\r
  91          * Method declared on IPersistableElement.\r
  92          */\r
  93         public String getFactoryId() {\r
  94                 return GraphFileEditorInputFactory.getFactoryId();\r
  95         }\r
  96 \r
  97         /* (non-Javadoc)\r
  98          * Method declared on IFileEditorInput.\r
  99          */\r
 100         public IFile getFile() {\r
 101                 return file;\r
 102         }\r
 103 \r
 104         /* (non-Javadoc)\r
 105          * Method declared on IEditorInput.\r
 106          */\r
 107         public ImageDescriptor getImageDescriptor() {\r
 108                 IContentType contentType = IDE.getContentType(file);\r
 109                 return PlatformUI.getWorkbench().getEditorRegistry()\r
 110                                 .getImageDescriptor(file.getName(), contentType);\r
 111         }\r
 112 \r
 113         /* (non-Javadoc)\r
 114          * Method declared on IEditorInput.\r
 115          */\r
 116         public String getName() {\r
 117                 return file.getName();\r
 118         }\r
 119 \r
 120         /* (non-Javadoc)\r
 121          * Method declared on IEditorInput.\r
 122          */\r
 123         public IPersistableElement getPersistable() {\r
 124                 return this;\r
 125         }\r
 126 \r
 127         /* (non-Javadoc)\r
 128          * Method declared on IStorageEditorInput.\r
 129          */\r
 130         public IStorage getStorage() {\r
 131                 return file;\r
 132         }\r
 133 \r
 134         /* (non-Javadoc)\r
 135          * Method declared on IEditorInput.\r
 136          */\r
 137         public String getToolTipText() {\r
 138                 return file.getFullPath().makeRelative().toString();\r
 139         }\r
 140 \r
 141         /* (non-Javadoc)\r
 142          * Method declared on IPersistableElement.\r
 143          */\r
 144         public void saveState(IMemento memento) {\r
 145                 GraphFileEditorInputFactory.saveState(memento, this);\r
 146         }\r
 147 \r
 148         \r
 149 \r
 150         /* (non-Javadoc)\r
 151          * @see org.eclipse.ui.IURIEditorInput#getURI()\r
 152          */\r
 153         public URI getURI() {\r
 154                 return file.getLocationURI();\r
 155         }\r
 156         \r
 157         \r
 158         /* (non-Javadoc)\r
 159          * @see org.eclipse.ui.IPathEditorInput#getPath()\r
 160          */\r
 161         public IPath getPath() {\r
 162                 IPath location = file.getLocation();\r
 163                 if (location != null)\r
 164                         return location;\r
 165 \r
 166                 throw new IllegalArgumentException();\r
 167         }\r
 168 \r
 169 \r
 170         /* (non-Javadoc)\r
 171          * @see java.lang.Object#toString()\r
 172          */\r
 173         public String toString() {\r
 174                 return getClass().getName() + "(" + getFile().getFullPath() + ")"; //$NON-NLS-1$ //$NON-NLS-2$\r
 175         }\r
 176         \r
 177         /*\r
 178          * Allows for the return of an {@link IWorkbenchAdapter} adapter.\r
 179          * \r
 180          * @since 3.5\r
 181          * \r
 182          * @see org.eclipse.core.runtime.PlatformObject#getAdapter(java.lang.Class)\r
 183          */\r
 184         @SuppressWarnings("rawtypes")\r
 185         public Object getAdapter(Class adapter) {\r
 186                 if (IWorkbenchAdapter.class.equals(adapter)) {\r
 187                         return new IWorkbenchAdapter() {\r
 188 \r
 189                                 public Object[] getChildren(Object o) {\r
 190                                         return new Object[0];\r
 191                                 }\r
 192 \r
 193                                 public ImageDescriptor getImageDescriptor(Object object) {\r
 194                                         return GraphFileEditorInput.this.getImageDescriptor();\r
 195                                 }\r
 196 \r
 197                                 public String getLabel(Object o) {\r
 198                                         return GraphFileEditorInput.this.getName();\r
 199                                 }\r
 200 \r
 201                                 public Object getParent(Object o) {\r
 202                                         return GraphFileEditorInput.this.getFile().getParent();\r
 203                                 }\r
 204                         };\r
 205                 }\r
 206 \r
 207                 return super.getAdapter(adapter);\r
 208         }\r
 209 }\r