blob: c0aea933ece76302a3c178cfd7d726f33676d048 (
plain)
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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
import com.sun.star.awt.XWindow;
import com.sun.star.awt.XExtendedToolkit;
import com.sun.star.accessibility.XAccessible;
import com.sun.star.accessibility.XAccessibleContext;
import com.sun.star.uno.XInterface;
import com.sun.star.uno.UnoRuntime;
import javax.swing.event.TreeModelEvent;
/** Listen for top window events and create or delete children of the tree
model accordingly.
*/
class TopWindowListener
{
TopWindowListener (AccessibilityTreeModel aModel, SimpleOffice aOffice)
{
maModel = aModel;
maOffice = aOffice;
}
/** Use this function to initially fill the accessibility object tree
view with nodes for top level windows.
*/
public void Initialize ()
{
XExtendedToolkit xToolkit = maOffice.getExtendedToolkit();
if (xToolkit != null)
{
maModel.lock ();
int nTopWindowCount = xToolkit.getTopWindowCount();
MessageArea.println ("There are " + nTopWindowCount + " top windows.");
for (int i=0; i<nTopWindowCount; i++)
{
try
{
XAccessible xAccessible = maOffice.getAccessibleObject(
xToolkit.getTopWindow (i));
// Uncomment the following line to get the real root of
// the accessible tree that xAccessible belongs to.
// xAccessible = maOffice.getAccessibleRoot(xAccessible);
AddTopLevelNode (xAccessible);
}
catch (Exception e)
{
System.out.println ("caught exception: " + e);
e.printStackTrace();
}
}
maModel.unlock ((AccessibleTreeNode)maModel.getRoot());
}
}
/** Add a new top level node which, to be exact, will be placed on the
second layer of the tree.
@param xNewTopLevelObject
The accessible object of the new top level window.
*/
private void AddTopLevelNode (XAccessible xNewTopLevelObject)
{
System.out.println ("adding top level window");
if (xNewTopLevelObject != null)
{
XAccessibleContext xContext = xNewTopLevelObject.getAccessibleContext();
if (xContext == null)
System.out.println ("top level window not accessible");
else
{
if ( ! FilterTopLevelNode (xContext))
{
Object aRootObject = maModel.getRoot();
if (aRootObject instanceof VectorNode)
{
VectorNode aRoot = (VectorNode) aRootObject;
AccessibleTreeNode aNode =
NodeFactory.Instance().createDefaultNode (xNewTopLevelObject, aRoot);
aRoot.addChild (aNode);
maModel.fireTreeNodesInserted (maModel.createEvent (aRoot, aNode));
}
}
}
}
}
/** Ignore windows that have no accessible name, i.e. do not represent
document windows.
@return
Returns <true/> when the given object should not be displayed,
i.e. filtered out.
*/
private boolean FilterTopLevelNode (XAccessibleContext xContext)
{
// No filtering at the moment.
return false;
// return xContext.getAccessibleName().length() == 0;
}
/** Remove an existing top level node from the tree.
@param xNewTopLevelObject
The accessible object to remove.
*/
private void RemoveTopLevelNode (XAccessible xTopLevelObject)
{
Object aObject = maModel.getRoot();
if (aObject instanceof VectorNode && xTopLevelObject != null)
{
System.out.println ("removing node " + xTopLevelObject);
VectorNode aRoot = (VectorNode) aObject;
maModel.removeNode (xTopLevelObject.getAccessibleContext());
}
}
/** This method exists for debugging. It prints a list of all top
level windows.
*/
private void ShowAllTopLevelWindows ()
{
XExtendedToolkit xToolkit = maOffice.getExtendedToolkit();
if (xToolkit != null)
{
int nTopWindowCount = xToolkit.getTopWindowCount();
for (int i=0; i<nTopWindowCount; i++)
{
try
{
System.out.println (i + " : " + xToolkit.getTopWindow (i));
}
catch (Exception e)
{
System.out.println ("caught exception; " + e);
}
}
}
}
// XTopWindowListener
public void windowOpened (final com.sun.star.lang.EventObject aEvent)
throws RuntimeException
{
if (maModel != null)
{
XWindow xWindow = (XWindow) UnoRuntime.queryInterface(
XWindow.class, aEvent.Source);
if (xWindow == null)
System.out.println ("event source is no XWindow");
else
{
XAccessible xAccessible = maOffice.getAccessibleObject(xWindow);
if (xAccessible == null)
System.out.println ("event source is no XAccessible");
else
AddTopLevelNode (xAccessible);
}
}
}
public void windowClosed (final com.sun.star.lang.EventObject aEvent)
throws RuntimeException
{
if (maModel != null)
{
XWindow xWindow = (XWindow) UnoRuntime.queryInterface(
XWindow.class, aEvent.Source);
if (xWindow == null)
System.out.println ("event source is no XWindow");
else
{
XAccessible xAccessible = maOffice.getAccessibleObject(xWindow);
if (xAccessible == null)
System.out.println ("event source is no XAccessible");
else
RemoveTopLevelNode (xAccessible);
}
}
}
public void disposing (final com.sun.star.lang.EventObject aEvent)
{
System.out.println ("Top window disposed: " + aEvent);
}
private AccessibilityTreeModel
maModel;
private SimpleOffice
maOffice;
}
|
