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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <vcl/svapp.hxx>
#include <vcl/window.hxx>
#include <vcl/toolbox.hxx>
#include <vcl/menu.hxx>
#include <osx/a11yfocustracker.hxx>
#include "documentfocuslistener.hxx"
#include <com/sun/star/accessibility/XAccessibleContext.hpp>
#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
#include <com/sun/star/accessibility/XAccessibleStateSet.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;
AquaA11yFocusTracker& TheAquaA11yFocusTracker()
{
static AquaA11yFocusTracker SINGLETON;
return SINGLETON;
}
static vcl::Window *
getWindow(const ::VclSimpleEvent *pEvent)
{
return static_cast< const ::VclWindowEvent *> (pEvent)->GetWindow();
}
// callback function for Application::addEventListener
void AquaA11yFocusTracker::WindowEventHandler(void * pThis, VclSimpleEvent& rEvent)
{
AquaA11yFocusTracker *pFocusTracker = static_cast<AquaA11yFocusTracker *>(
pThis);
switch (rEvent.GetId())
{
case VclEventId::WindowPaint:
pFocusTracker-> toolbox_open_floater( getWindow(&rEvent) );
break;
case VclEventId::WindowGetFocus:
pFocusTracker->window_got_focus( getWindow(&rEvent) );
break;
case VclEventId::ObjectDying:
pFocusTracker->m_aDocumentWindowList.erase( getWindow(&rEvent) );
[[fallthrough]];
case VclEventId::ToolboxHighlightOff:
pFocusTracker->toolbox_highlight_off( getWindow(&rEvent) );
break;
case VclEventId::ToolboxHighlight:
pFocusTracker->toolbox_highlight_on( getWindow(&rEvent) );
break;
case VclEventId::TabpageActivate:
pFocusTracker->tabpage_activated( getWindow(&rEvent) );
break;
case VclEventId::MenuHighlight:
// Inspired by code in WindowEventHandler in
// vcl/unx/gtk/a11y/atkutil.cxx, find out what kind of event
// it is to avoid blindly using a static_cast and crash,
// fdo#47275.
if( const VclMenuEvent* pMenuEvent = dynamic_cast < const VclMenuEvent* > (&rEvent) )
{
pFocusTracker->menu_highlighted( pMenuEvent );
}
break;
default:
break;
}
}
AquaA11yFocusTracker::AquaA11yFocusTracker() :
m_aWindowEventLink(this, WindowEventHandler),
m_xDocumentFocusListener(new DocumentFocusListener(*this))
{
Application::AddEventListener(m_aWindowEventLink);
window_got_focus(Application::GetFocusWindow());
}
AquaA11yFocusTracker::~AquaA11yFocusTracker() {}
void AquaA11yFocusTracker::setFocusedObject(const Reference< XAccessible >& xAccessible)
{
if( xAccessible != m_xFocusedObject )
{
m_xFocusedObject = xAccessible;
if( m_aFocusListener.is() )
m_aFocusListener->focusedObjectChanged(xAccessible);
}
}
void AquaA11yFocusTracker::notify_toolbox_item_focus(ToolBox *pToolBox)
{
Reference< XAccessible > xAccessible( pToolBox->GetAccessible() );
if( xAccessible.is() )
{
Reference< XAccessibleContext > xContext(xAccessible->getAccessibleContext());
if( xContext.is() )
{
ToolBox::ImplToolItems::size_type nPos = pToolBox->GetItemPos( pToolBox->GetHighlightItemId() );
if( nPos != ToolBox::ITEM_NOTFOUND )
setFocusedObject( xContext->getAccessibleChild( nPos ) );
//TODO: ToolBox::ImplToolItems::size_type -> sal_Int32!
}
}
}
void AquaA11yFocusTracker::toolbox_open_floater(vcl::Window *pWindow)
{
bool bToolboxFound = false;
bool bFloatingWindowFound = false;
vcl::Window * pFloatingWindow = nullptr;
while ( pWindow != nullptr ) {
if ( pWindow->GetType() == WindowType::TOOLBOX ) {
bToolboxFound = true;
} else if ( pWindow->GetType() == WindowType::FLOATINGWINDOW ) {
bFloatingWindowFound = true;
pFloatingWindow = pWindow;
}
pWindow = pWindow->GetParent();
}
if ( bToolboxFound && bFloatingWindowFound ) {
Reference < XAccessible > rxAccessible = pFloatingWindow -> GetAccessible();
if ( ! rxAccessible.is() ) {
return;
}
Reference < XAccessibleContext > rxContext = rxAccessible -> getAccessibleContext();
if ( ! rxContext.is() ) {
return;
}
if ( rxContext -> getAccessibleChildCount() > 0 ) {
Reference < XAccessible > rxAccessibleChild = rxContext -> getAccessibleChild( 0 );
if ( ! rxAccessibleChild.is() ) {
return;
}
setFocusedObject ( rxAccessibleChild );
}
}
}
void AquaA11yFocusTracker::toolbox_highlight_on(vcl::Window *pWindow)
{
// Make sure either the toolbox or its parent toolbox has the focus
if ( ! pWindow->HasFocus() )
{
ToolBox* pToolBoxParent = dynamic_cast< ToolBox * >( pWindow->GetParent() );
if ( ! pToolBoxParent || ! pToolBoxParent->HasFocus() )
return;
}
notify_toolbox_item_focus(static_cast <ToolBox *> (pWindow));
}
void AquaA11yFocusTracker::toolbox_highlight_off(vcl::Window const *pWindow)
{
ToolBox* pToolBoxParent = dynamic_cast< ToolBox * >( pWindow->GetParent() );
// Notify when leaving sub toolboxes
if( pToolBoxParent && pToolBoxParent->HasFocus() )
notify_toolbox_item_focus( pToolBoxParent );
}
void AquaA11yFocusTracker::tabpage_activated(vcl::Window *pWindow)
{
Reference< XAccessible > xAccessible( pWindow->GetAccessible() );
if( xAccessible.is() )
{
Reference< XAccessibleSelection > xSelection(xAccessible->getAccessibleContext(), UNO_QUERY);
if( xSelection.is() )
setFocusedObject( xSelection->getSelectedAccessibleChild(0) );
}
}
void AquaA11yFocusTracker::menu_highlighted(const VclMenuEvent *pEvent)
{
Menu * pMenu = pEvent->GetMenu();
if( pMenu )
{
Reference< XAccessible > xAccessible( pMenu->GetAccessible() );
if( xAccessible.is() )
setFocusedObject( xAccessible );
}
}
void AquaA11yFocusTracker::window_got_focus(vcl::Window *pWindow)
{
// The menu bar is handled through VclEventId::MenuHighlightED
if( ! pWindow || !pWindow->IsReallyVisible() || pWindow->GetType() == WindowType::MENUBARWINDOW )
return;
// ToolBoxes are handled through VclEventId::ToolboxHighlight
if( pWindow->GetType() == WindowType::TOOLBOX )
return;
if( pWindow->GetType() == WindowType::TABCONTROL )
{
tabpage_activated( pWindow );
return;
}
Reference< XAccessible > xAccessible(pWindow->GetAccessible());
if( ! xAccessible.is() )
return;
Reference< XAccessibleContext > xContext = xAccessible->getAccessibleContext();
if( ! xContext.is() )
return;
Reference< XAccessibleStateSet > xStateSet = xContext->getAccessibleStateSet();
if( ! xStateSet.is() )
return;
/* the UNO ToolBox wrapper does not (yet?) support XAccessibleSelection, so we
* need to add listeners to the children instead of re-using the tabpage stuff
*/
if( xStateSet->contains(AccessibleStateType::FOCUSED) && (pWindow->GetType() != WindowType::TREELISTBOX) )
{
setFocusedObject( xAccessible );
}
else
{
if( m_aDocumentWindowList.insert(pWindow).second )
m_xDocumentFocusListener->attachRecursive(xAccessible, xContext, xStateSet);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
