summaryrefslogtreecommitdiff
path: root/winaccessibility/source/service/AccTopWindowListener.cxx
blob: a463ca4ec5a55829bacecab3d7f156bc44d455ce (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
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 <cppuhelper/bootstrap.hxx>
#include <com/sun/star/bridge/XUnoUrlResolver.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <vcl/window.hxx>
#include <toolkit/awt/Vclxwindow.hxx>

#include <vcl/sysdata.hxx>
#include <vcl/svapp.hxx>

#include "AccTopWindowListener.hxx"
#include "unomsaaevent.hxx"

#include <com/sun/star/awt/XExtendedToolkit.hpp>
#include <com/sun/star/uno/XInterface.hpp>
#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
#include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>

using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::bridge;
using namespace com::sun::star::awt;
using namespace rtl;
using namespace cppu;

/**
 *  For the new opened window, generate all the UNO accessible's object, COM object and add
 *  accessible listener to monitor all these objects.
 *  @param pAccessible      the accessible of the new opened window
 */
void AccTopWindowListener::HandleWindowOpened( com::sun::star::accessibility::XAccessible* pAccessible )
{
    //get SystemData from window
    VCLXWindow* pvclwindow = (VCLXWindow*)pAccessible;
    Window* window = pvclwindow->GetWindow();
    // The SalFrame of window may be destructed at this time
    const SystemEnvData* systemdata = NULL;
    try
    {
        systemdata = window->GetSystemData();
    }
    catch(...)
    {
        systemdata = NULL;
    }
    Reference<com::sun::star::accessibility::XAccessibleContext> xContext(pAccessible->getAccessibleContext(),UNO_QUERY);
    if(!xContext.is())
        return;

    com::sun::star::accessibility::XAccessibleContext* pAccessibleContext = xContext.get();
    //Only AccessibleContext exist, add all listeners
    if(pAccessibleContext != NULL && systemdata != NULL)
    {
        accManagerAgent.SaveTopWindowHandle((long)(HWND)systemdata->hWnd, pAccessible);

        AddAllListeners(pAccessible,NULL,(HWND)systemdata->hWnd);

        if( window->GetStyle() & WB_MOVEABLE )
            accManagerAgent.IncreaseState( pAccessible, -1 /* U_MOVEBLE */ );

        short role = pAccessibleContext->getAccessibleRole();

        if (role == com::sun::star::accessibility::AccessibleRole::POPUP_MENU ||
                role == com::sun::star::accessibility::AccessibleRole::MENU )
        {
            accManagerAgent.NotifyAccEvent(UM_EVENT_MENUPOPUPSTART, pAccessible);
        }

        if (role == com::sun::star::accessibility::AccessibleRole::FRAME ||
                role == com::sun::star::accessibility::AccessibleRole::DIALOG ||
                role == com::sun::star::accessibility::AccessibleRole::WINDOW ||
                role == com::sun::star::accessibility::AccessibleRole::ALERT)
        {
            accManagerAgent.NotifyAccEvent(UM_EVENT_SHOW, pAccessible);
        }
    }
}

AccTopWindowListener::AccTopWindowListener()
    : accManagerAgent()
{
}

AccTopWindowListener::~AccTopWindowListener()
{
}

/**
 *  It is invoked when a new window is opened, the source of this EventObject is the window
 */
void AccTopWindowListener::windowOpened( const ::com::sun::star::lang::EventObject& e ) throw (::com::sun::star::uno::RuntimeException)
{
    SAL_INFO( "iacc2", "windowOpened triggered" );

    if ( !e.Source.is())
        return;

    Reference< com::sun::star::accessibility::XAccessible > xAccessible ( e.Source, UNO_QUERY );
    com::sun::star::accessibility::XAccessible* pAccessible = xAccessible.get();
    if ( !pAccessible )
        return;

    SolarMutexGuard g;

    HandleWindowOpened( pAccessible );
}

/**
 *  Add the accessible event listener to object and all its children objects.
 *  @param  pAccessible     the accessible object
 *  @param  pParentXAcc     the parent of current accessible object
 *  @param  pWND            the handle of top window which current object resides
 */
void AccTopWindowListener::AddAllListeners(com::sun::star::accessibility::XAccessible* pAccessible, com::sun::star::accessibility::XAccessible* pParentXAcc, HWND pWND)
{
    Reference<com::sun::star::accessibility::XAccessibleContext> xContext(pAccessible->getAccessibleContext(),UNO_QUERY);
    if(!xContext.is())
    {
        return;
    }
    com::sun::star::accessibility::XAccessibleContext* pAccessibleContext = xContext.get();
    if(pAccessibleContext == NULL)
    {
        return;
    }

    accManagerAgent.InsertAccObj( pAccessible, pParentXAcc,(long)(HWND)pWND );

    if (!accManagerAgent.IsContainer(pAccessible))
    {
        return;
    }


    short role = pAccessibleContext->getAccessibleRole();
    if(com::sun::star::accessibility::AccessibleRole::DOCUMENT == role )
    {
        if(accManagerAgent.IsStateManageDescendant(pAccessible))
        {
            return ;
        }
    }


    int count = pAccessibleContext->getAccessibleChildCount();
    for (int i=0;i<count;i++)
    {
        Reference<com::sun::star::accessibility::XAccessible> mxAccessible
        = pAccessibleContext->getAccessibleChild(i);

        com::sun::star::accessibility::XAccessible* mpAccessible = mxAccessible.get();
        if(mpAccessible != NULL)
        {
            Reference<com::sun::star::accessibility::XAccessibleContext> mxAccessibleContext
            = mpAccessible->getAccessibleContext();
            com::sun::star::accessibility::XAccessibleContext* mpContext = mxAccessibleContext.get();
            if(mpContext != NULL)
                AddAllListeners( mpAccessible, pAccessible, pWND);
        }
    }
}

void AccTopWindowListener::windowClosing( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException)
{
    SAL_INFO( "iacc2", "windowClosing triggered" );
}

/**
 *  Invoke this method when the top window is closed, remove all the objects and its children
 *  from current manager's cache, and remove the COM object and the accessible event listener
 *  assigned to the accessible objects.
 */
void AccTopWindowListener::windowClosed( const ::com::sun::star::lang::EventObject& e ) throw (::com::sun::star::uno::RuntimeException)
{
    SAL_INFO( "iacc2", "windowClosed triggered" );

    if ( !e.Source.is())
        return;

    Reference< com::sun::star::accessibility::XAccessible > xAccessible ( e.Source, UNO_QUERY );
    com::sun::star::accessibility::XAccessible* pAccessible = xAccessible.get();
    if ( pAccessible == NULL)
        return;

    VCLXWindow* pvclwindow = (VCLXWindow*)pAccessible;
    Window* window = pvclwindow->GetWindow();
    const SystemEnvData* systemdata=window->GetSystemData();

    Reference<com::sun::star::accessibility::XAccessibleContext> xContext(pAccessible->getAccessibleContext(),UNO_QUERY);
    if(!xContext.is())
    {
        return;
    }
    com::sun::star::accessibility::XAccessibleContext* pAccessibleContext = xContext.get();

    short role = -1;
    if(pAccessibleContext != NULL)
    {
        role = pAccessibleContext->getAccessibleRole();

        if (role == com::sun::star::accessibility::AccessibleRole::POPUP_MENU ||
                role == com::sun::star::accessibility::AccessibleRole::MENU)
        {
            accManagerAgent.NotifyAccEvent(UM_EVENT_MENUPOPUPEND, pAccessible);
        }
    }


    accManagerAgent.DeleteChildrenAccObj( pAccessible );
    if( role != com::sun::star::accessibility::AccessibleRole::POPUP_MENU )
        accManagerAgent.DeleteAccObj( pAccessible );

}

void AccTopWindowListener::windowMinimized( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException)
{
}

void AccTopWindowListener::windowNormalized( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException)
{
}

void AccTopWindowListener::windowActivated( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException)
{
}

void AccTopWindowListener::windowDeactivated( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException)
{
}

void AccTopWindowListener::disposing( const ::com::sun::star::lang::EventObject&  ) throw (::com::sun::star::uno::RuntimeException)
{
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */