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1
11
12 package org.eclipse.ui.internal.activities;
13
14 import java.util.ArrayList  ;
15 import java.util.Collections ;
16 import java.util.List ;
17
18 public abstract class AbstractActivityRegistry implements IActivityRegistry {
19 protected List activityRequirementBindingDefinitions = Collections.EMPTY_LIST;
20
21 protected List activityDefinitions = Collections.EMPTY_LIST;
22
23 protected List activityPatternBindingDefinitions = Collections.EMPTY_LIST;
24
25 private ActivityRegistryEvent activityRegistryEvent;
26
27 private List activityRegistryListeners;
28
29 protected List categoryActivityBindingDefinitions = Collections.EMPTY_LIST;
30
31 protected List categoryDefinitions = Collections.EMPTY_LIST;
32
33 protected List defaultEnabledActivities = Collections.EMPTY_LIST;
34
35 protected AbstractActivityRegistry() {
36 }
37
38 public void addActivityRegistryListener(
39 IActivityRegistryListener activityRegistryListener) {
40 if (activityRegistryListener == null) {
41 throw new NullPointerException ();
42 }
43
44 if (activityRegistryListeners == null) {
45 activityRegistryListeners = new ArrayList ();
46 }
47
48 if (!activityRegistryListeners.contains(activityRegistryListener)) {
49 activityRegistryListeners.add(activityRegistryListener);
50 }
51 }
52
53 protected void fireActivityRegistryChanged() {
54 if (activityRegistryListeners != null) {
55 for (int i = 0; i < activityRegistryListeners.size(); i++) {
56 if (activityRegistryEvent == null) {
57 activityRegistryEvent = new ActivityRegistryEvent(this);
58 }
59
60 ((IActivityRegistryListener) activityRegistryListeners.get(i))
61 .activityRegistryChanged(activityRegistryEvent);
62 }
63 }
64 }
65
66 public List getActivityRequirementBindingDefinitions() {
67 return activityRequirementBindingDefinitions;
68 }
69
70 public List getActivityDefinitions() {
71 return activityDefinitions;
72 }
73
74 public List getActivityPatternBindingDefinitions() {
75 return activityPatternBindingDefinitions;
76 }
77
78 public List getCategoryActivityBindingDefinitions() {
79 return categoryActivityBindingDefinitions;
80 }
81
82 public List getCategoryDefinitions() {
83 return categoryDefinitions;
84 }
85
86 public void removeActivityRegistryListener(
87 IActivityRegistryListener activityRegistryListener) {
88 if (activityRegistryListener == null) {
89 throw new NullPointerException ();
90 }
91
92 if (activityRegistryListeners != null) {
93 activityRegistryListeners.remove(activityRegistryListener);
94 }
95 }
96
97 public List getDefaultEnabledActivities() {
98 return defaultEnabledActivities;
99 }
100 }
101 |
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