org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/meta/internal/CellEditorFactoryRegistry.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2006 Sybase, Inc. and others.\r
   3  *\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  *     Sybase, Inc. - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.eclipse.jst.pagedesigner.meta.internal;\r
  13 \r
  14 import java.util.ArrayList;\r
  15 import java.util.HashMap;\r
  16 import java.util.List;\r
  17 import java.util.Map;\r
  18 \r
  19 import org.eclipse.jface.viewers.CellEditor;\r
  20 import org.eclipse.jst.jsf.common.ui.internal.dialogfield.DialogField;\r
  21 import org.eclipse.jst.jsf.common.ui.internal.dialogfield.ISupportTextValue;\r
  22 import org.eclipse.jst.jsf.common.ui.internal.dialogfield.StringDialogField;\r
  23 import org.eclipse.jst.pagedesigner.editors.properties.IPropertyPageDescriptor;\r
  24 import org.eclipse.jst.pagedesigner.meta.ITagAttributeCellEditorFactory;\r
  25 import org.eclipse.jst.pagedesigner.properties.celleditors.CellEditorFactory;\r
  26 import org.eclipse.swt.widgets.Composite;\r
  27 import org.w3c.dom.Element;\r
  28 \r
  29 /**\r
  30  * CellEditorFactoryRegistry also read information from plugin.xml extension to\r
  31  * allow other plugins to contribute new kinds of cell editors.\r
  32  * \r
  33  */\r
  34 public class CellEditorFactoryRegistry {\r
  35 //      private static final Logger _log = PDPlugin\r
  36 //                      .getLogger(CellEditorFactoryRegistry.class);\r
  37 \r
  38         private static CellEditorFactoryRegistry _instance;\r
  39 \r
  40         private Map _factoryMap = new HashMap();\r
  41 \r
  42         private List _defaultFactories = new ArrayList();\r
  43 \r
  44         /**\r
  45          * @return singleton CellEditorFactoryRegistry\r
  46          */\r
  47         public static CellEditorFactoryRegistry getInstance() {\r
  48                 if (_instance == null) {\r
  49                         _instance = new CellEditorFactoryRegistry();\r
  50                 }\r
  51                 return _instance;\r
  52         }\r
  53 \r
  54         private CellEditorFactoryRegistry() {\r
  55                 ITagAttributeCellEditorFactory[] facs = CellEditorFacRegistryReader\r
  56                                 .getAllFactories();\r
  57                 if (facs != null) {\r
  58                         for (int i = 0; i < facs.length; i++) {\r
  59                                 addCellEditorFactory(facs[i]);\r
  60                         }\r
  61                 }\r
  62                 addCellEditorFactory(new CellEditorFactory());\r
  63         }\r
  64 \r
  65         /**\r
  66          * @param fac\r
  67          */\r
  68         public void addCellEditorFactory(ITagAttributeCellEditorFactory fac) {\r
  69                 String[] types = fac.getSupportedValueTypes();\r
  70                 if (types == null || types.length == 0) {\r
  71                         _defaultFactories.add(fac);\r
  72                 } else {\r
  73                         for (int i = 0; i < types.length; i++) {\r
  74                                 _factoryMap.put(types[i], fac);\r
  75                         }\r
  76                 }\r
  77         }\r
  78 \r
  79         /**\r
  80          * Return cell editor for attribute based upon runtime value type\r
  81          * @param parent\r
  82          * @param attr\r
  83          * @param element\r
  84          * @return CellEditor\r
  85          */\r
  86         public CellEditor createCellEditor(Composite parent,\r
  87                         IPropertyPageDescriptor attr, Element element) {\r
  88                 String type = attr.getValueType();\r
  89                 if (type == null || type.length() == 0)\r
  90                         return null;\r
  91 \r
  92                 CellEditor result = null;\r
  93                 ITagAttributeCellEditorFactory fac = (ITagAttributeCellEditorFactory) _factoryMap\r
  94                                 .get(type);\r
  95                 \r
  96                 if (fac != null) {\r
  97                         result = fac.createCellEditor(parent, attr, element);\r
  98                 }\r
  99                 if (result == null) {\r
 100                         for (int i = 0, size = _defaultFactories.size(); i < size; i++) {\r
 101                                 result = ((ITagAttributeCellEditorFactory) _defaultFactories\r
 102                                                 .get(i)).createCellEditor(parent, attr, element);\r
 103                                 if (result != null)\r
 104                                         break;\r
 105                         }\r
 106                 }\r
 107                 return result;\r
 108         }\r
 109 \r
 110         /**\r
 111          * @param attr\r
 112          * @return DialogField\r
 113          */\r
 114         public DialogField createDialogField(IPropertyPageDescriptor attr) {\r
 115                 String type = attr.getValueType();\r
 116                 if (type == null || type.length() == 0) {\r
 117                         DialogField result = createTextDialogField(attr);\r
 118                         result.setLabelText(attr.getLabel()); //labelProvider???\r
 119                         return result;\r
 120                 }\r
 121 //              type = type.toUpperCase();\r
 122 \r
 123                 DialogField result = null;\r
 124                 ITagAttributeCellEditorFactory fac = (ITagAttributeCellEditorFactory) _factoryMap\r
 125                                 .get(type);\r
 126                 if (fac != null) {\r
 127                         result = fac.createDialogField(attr);\r
 128                 }\r
 129                 if (result == null) {\r
 130                         for (int i = 0, size = _defaultFactories.size(); i < size; i++) {\r
 131                                 result = ((ITagAttributeCellEditorFactory) _defaultFactories\r
 132                                                 .get(i)).createDialogField(attr);\r
 133                                 if (result != null) {\r
 134                                         break;\r
 135                                 }\r
 136                         }\r
 137                 }\r
 138                 if (result == null) {\r
 139                         result = createTextDialogField(attr);\r
 140                 }\r
 141                 if (!(result instanceof ISupportTextValue)) {\r
 142                         result = createTextDialogField(attr);\r
 143                 }\r
 144 //              result.setLabelText(attr.getLabel() + ":"); //$NON-NLS-1$\r
 145                 return result;\r
 146         }\r
 147 \r
 148         /**\r
 149          * @param attr\r
 150          * @return DialogField\r
 151          */\r
 152         public DialogField createTextDialogField(IPropertyPageDescriptor attr) {\r
 153                 StringDialogField field = new StringDialogField();\r
 154                 field.setLabelText(attr.getLabel());\r
 155                 field.setRequired(attr.isRequired());\r
 156                 field.setToolTip(attr.getDescription());\r
 157                 return field;\r
 158         }\r
 159 \r
 160 }\r