accessible/src/msaa/nsApplicationAccessibleWrap.cpp

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   5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   6  *
   7  * The contents of this file are subject to the Mozilla Public License Version
   8  * 1.1 (the "License"); you may not use this file except in compliance with
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  10  * http://www.mozilla.org/MPL/
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  12  * Software distributed under the License is distributed on an "AS IS" basis,
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  17  * The Original Code is mozilla.org code.
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  19  * The Initial Developer of the Original Code is
  20  * Mozilla Foundation.
  21  * Portions created by the Initial Developer are Copyright (C) 2007
  22  * the Initial Developer. All Rights Reserved.
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  24  * Contributor(s):
  25  *   Alexander Surkov <surkov.alexander@gmail.com> (original author)
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  27  * Alternatively, the contents of this file may be used under the terms of
  28  * either the GNU General Public License Version 2 or later (the "GPL"), or
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  39  * ***** END LICENSE BLOCK ***** */
  40
  41 #include "nsApplicationAccessibleWrap.h"
  42
  43 #include "AccessibleApplication_i.c"
  44
  45 #include "nsServiceManagerUtils.h"
  46
  47 nsIXULAppInfo* nsApplicationAccessibleWrap::sAppInfo = nsnull;
  48
  49 // nsISupports
  50 NS_IMPL_ISUPPORTS_INHERITED0(nsApplicationAccessibleWrap,
  51                              nsApplicationAccessible)
  52
  53 // IUnknown
  54
  55 STDMETHODIMP
  56 nsApplicationAccessibleWrap::QueryInterface(REFIID iid, void** ppv)
  57 {
  58   *ppv = NULL;
  59
  60   if (IID_IAccessibleApplication == iid) {
  61     *ppv = static_cast<IAccessibleApplication*>(this);
  62     (reinterpret_cast<IUnknown*>(*ppv))->AddRef();
  63     return S_OK;
  64   }
  65
  66   return nsAccessibleWrap::QueryInterface(iid, ppv);
  67 }
  68
  69 // IAccessibleApplication
  70
  71 STDMETHODIMP
  72 nsApplicationAccessibleWrap::get_appName(BSTR *aName)
  73 {
  74 __try {
  75   *aName = NULL;
  76
  77   if (!sAppInfo)
  78     return E_FAIL;
  79
  80   nsCAutoString cname;
  81   nsresult rv = sAppInfo->GetName(cname);
  82   if (NS_FAILED(rv))
  83     return GetHRESULT(rv);
  84
  85   if (cname.IsEmpty())
  86     return S_FALSE;
  87
  88   NS_ConvertUTF8toUTF16 name(cname);
  89   *aName = ::SysAllocStringLen(name.get(), name.Length());
  90   return *aName ? S_OK : E_OUTOFMEMORY;
  91
  92 } __except(FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
  93   return E_FAIL;
  94 }
  95
  96 STDMETHODIMP
  97 nsApplicationAccessibleWrap::get_appVersion(BSTR *aVersion)
  98 {
  99 __try {
 100   *aVersion = NULL;
 101
 102   if (!sAppInfo)
 103     return E_FAIL;
 104
 105   nsCAutoString cversion;
 106   nsresult rv = sAppInfo->GetVersion(cversion);
 107   if (NS_FAILED(rv))
 108     return GetHRESULT(rv);
 109
 110   if (cversion.IsEmpty())
 111     return S_FALSE;
 112
 113   NS_ConvertUTF8toUTF16 version(cversion);
 114   *aVersion = ::SysAllocStringLen(version.get(), version.Length());
 115   return *aVersion ? S_OK : E_OUTOFMEMORY;
 116
 117 } __except(FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 118   return E_FAIL;
 119 }
 120
 121 STDMETHODIMP
 122 nsApplicationAccessibleWrap::get_toolkitName(BSTR *aName)
 123 {
 124 __try {
 125   *aName = ::SysAllocString(L"Gecko");
 126   return *aName ? S_OK : E_OUTOFMEMORY;
 127
 128 } __except(FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 129   return E_FAIL;
 130 }
 131
 132 STDMETHODIMP
 133 nsApplicationAccessibleWrap::get_toolkitVersion(BSTR *aVersion)
 134 {
 135 __try {
 136   *aVersion = NULL;
 137
 138   if (!sAppInfo)
 139     return E_FAIL;
 140
 141   nsCAutoString cversion;
 142   nsresult rv = sAppInfo->GetPlatformVersion(cversion);
 143   if (NS_FAILED(rv))
 144     return GetHRESULT(rv);
 145
 146   if (cversion.IsEmpty())
 147     return S_FALSE;
 148
 149   NS_ConvertUTF8toUTF16 version(cversion);
 150   *aVersion = ::SysAllocStringLen(version.get(), version.Length());
 151   return *aVersion ? S_OK : E_OUTOFMEMORY;
 152
 153 } __except(FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 154   return E_FAIL;
 155 }
 156
 157 // nsApplicationAccessibleWrap
 158
 159 void
 160 nsApplicationAccessibleWrap::PreCreate()
 161 {
 162   nsresult rv = CallGetService("@mozilla.org/xre/app-info;1", &sAppInfo);
 163   NS_ASSERTION(NS_SUCCEEDED(rv), "No XUL application info service");
 164 }
 165
 166 void
 167 nsApplicationAccessibleWrap::Unload()
 168 {
 169   NS_IF_RELEASE(sAppInfo);
 170 }
 171