1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (c) 2007, 2008, 2010-2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.buddies.internal.ui;
import org.eclipse.net4j.buddies.common.ICollaboration;
import org.eclipse.net4j.buddies.common.IMembership;
import org.eclipse.net4j.internal.buddies.Self;
import org.eclipse.net4j.util.event.IEvent;
import org.eclipse.net4j.util.event.IListener;
import org.eclipse.net4j.util.lifecycle.ILifecycleEvent;
import org.eclipse.net4j.util.ui.views.IElementFilter;
import org.eclipse.swt.graphics.Image;
import java.util.Collection;
/**
* @author Eike Stepper
*/
public class CollaborationsItemProvider extends AbstractItemProvider
{
public CollaborationsItemProvider()
{
}
public CollaborationsItemProvider(IElementFilter rootElementFilter)
{
super(rootElementFilter);
}
@Override
protected Node createNode(Node parent, Object element)
{
if (element instanceof Self)
{
return new SelfNode((Self)element);
}
if (element instanceof IMembership)
{
IMembership membership = (IMembership)element;
if (membership.getBuddy() instanceof Self)
{
return null;
}
}
return super.createNode(parent, element);
}
@Override
protected Node createMembershipNode(Node parent, IMembership membership)
{
return createLeafNode(parent, membership);
}
@Override
protected String getText(IMembership membership)
{
return getText(membership.getBuddy());
}
@Override
protected Image getImage(IMembership membership)
{
return getImage(membership.getBuddy());
}
/**
* @since 4.0
*/
@Override
public void refreshElement(Object element, boolean updateLabels)
{
super.refreshElement(null, updateLabels);
}
/**
* @author Eike Stepper
*/
private class SelfNode extends AbstractContainerNode implements IListener
{
private Self self;
public SelfNode(Self self)
{
super(null);
this.self = self;
}
@Override
public void dispose()
{
if (!isDisposed())
{
self.removeListener(containerListener);
super.dispose();
}
}
public Self getElement()
{
return self;
}
public void notifyEvent(IEvent event)
{
IMembership membership = (IMembership)event.getSource();
if (event instanceof ILifecycleEvent)
{
ILifecycleEvent e = (ILifecycleEvent)event;
if (e.getKind() == ILifecycleEvent.Kind.DEACTIVATED)
{
membership.removeListener(this);
ICollaboration collaboration = membership.getCollaboration();
Node node = getNode(collaboration);
if (node != null)
{
node.dispose();
}
}
}
}
@Override
protected Node addChild(Collection<Node> children, Object element)
{
IMembership membership = (IMembership)element;
membership.addListener(this);
return super.addChild(children, membership.getCollaboration());
}
}
}
|
