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1
8 package com.nightlabs.rcp.action;
9
10 import java.util.HashMap  ;
11 import java.util.Map ;
12
13 import org.eclipse.core.runtime.CoreException;
14 import org.eclipse.core.runtime.IConfigurationElement;
15 import org.eclipse.jface.resource.ImageDescriptor;
16
17 import com.nightlabs.base.NLBasePlugin;
18 import com.nightlabs.rcp.extensionpoint.AbstractEPProcessor;
19 import com.nightlabs.rcp.extensionpoint.EPProcessorException;
20
21 public class NewFileRegistry
22 extends AbstractEPProcessor
23 {
24 public static final String EXTENSION_POINT_ID = "com.nightlabs.base.newfileaction";
25 public static final String DEFAULT_CATEGORY = "Default category";
26
27 private static NewFileRegistry sharedInstance;
28 public static NewFileRegistry getSharedInstance() {
29 if (sharedInstance == null)
30 sharedInstance = new NewFileRegistry();
31 return sharedInstance;
32 }
33
34 protected Map category2Actions = new HashMap ();
35 public Map getCategory2Actions() {
36 checkProcessing();
37 return category2Actions;
38 }
39
40 public String getCategoryName(String categoryID) {
41 return categoryRegistry.getCategoryName(categoryID);
42 }
43
44 protected CategoryRegistry categoryRegistry = new CategoryRegistry();
45
46 public String getExtensionPointID() {
47 return EXTENSION_POINT_ID;
48 }
49
50 public void processElement(IConfigurationElement element)
51 throws EPProcessorException
52 {
53 if (element.getName().equalsIgnoreCase("action"))
54 {
55 String className = element.getAttribute("class");
56 if (!checkString(className))
57 throw new EPProcessorException("Element action has to define attribute class.");
58
59 String categoryID = element.getAttribute("categoryID");
60 if (!checkString(categoryID) || categoryRegistry.getCategoryName(categoryID) == null)
61 categoryID = DEFAULT_CATEGORY;
62
63 String fileExtension = element.getAttribute("fileExtension");
64 if (!checkString(fileExtension))
65 throw new EPProcessorException("Element action has to define attribute fileExtension.");
66
67 String title = element.getAttribute("title");
68 if (!checkString(title))
69 throw new EPProcessorException("Element action has to define attribute title.");
70
71 String tooltip = element.getAttribute("tooltip");
72 String iconName = element.getAttribute("icon");
73
74
89 Object o;
90 try {
91 o = element.createExecutableExtension("class");
92 if (o instanceof INewFileAction) {
93 INewFileAction action = (INewFileAction) o;
94 action.setFileExtension(fileExtension);
95 action.setText(title);
96 if (checkString(tooltip))
97 action.setToolTipText(tooltip);
98 if (checkString(iconName))
99 action.setImageDescriptor(getImageDescriptor(iconName));
100
101 category2Actions.put(categoryID, action);
102 }
103 } catch (CoreException e) {
104 throw new EPProcessorException(e);
105 }
106 }
107 }
108
109 protected ImageDescriptor getImageDescriptor(String iconName)
110 {
111 if (iconName != null) {
112 return ImageDescriptor.createFromURL(NLBasePlugin.getDefault().getBundle().getEntry(iconName));
113 }
114 return null;
115 }
116
117 protected boolean checkString(String s)
118 {
119 if (s == null || "".equals(s))
120 return false;
121
122 return true;
123 }
124
125 protected class CategoryRegistry
126 extends AbstractEPProcessor
127 {
128 protected Map categoryID2name = new HashMap ();
129
130 public String getExtensionPointID() {
131 return EXTENSION_POINT_ID;
132 }
133
134 public String getCategoryName(String categoryID)
136 {
137 checkProcessing();
138 return (String ) categoryID2name.get(categoryID);
139 }
140
141 public void processElement(IConfigurationElement element)
142 throws EPProcessorException
143 {
144 if (element.getName().equalsIgnoreCase("category"))
145 {
146 String id = element.getAttribute("id");
147 if (!checkString(id))
148 throw new EPProcessorException("Element category has to define attribute id.");
149
150 String name = element.getAttribute("name");
151 if (!checkString(name))
152 throw new EPProcessorException("Element category has to define attribute name.");
153
154 categoryID2name.put(id, name);
155 }
156 }
157
158 }
159
160 } |
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