accessible/src/msaa/CAccessibleEditableText.cpp

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   4 /* ***** BEGIN LICENSE BLOCK *****
   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
   9  * the License. You may obtain a copy of the License at
  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 "CAccessibleEditableText.h"
  42
  43 #include "nsIAccessibleEditableText.h"
  44 #include "AccessibleEditableText_i.c"
  45 #include "nsAccessNodeWrap.h"
  46
  47 #include "nsCOMPtr.h"
  48 #include "nsString.h"
  49
  50 #define GET_NSIACCESSIBLEEDITABLETEXT \
  51 nsCOMPtr<nsIAccessibleEditableText> textAcc(do_QueryInterface(this));\
  52 NS_ASSERTION(textAcc,\
  53              "Subclass of CAccessibleEditableText doesn't implement nsIAccessibleEditableText");\
  54 if (!textAcc)\
  55   return E_FAIL;\
  56
  57 // IUnknown
  58
  59 STDMETHODIMP
  60 CAccessibleEditableText::QueryInterface(REFIID iid, void** ppv)
  61 {
  62   *ppv = NULL;
  63
  64   if (IID_IAccessibleEditableText == iid) {
  65     nsCOMPtr<nsIAccessibleEditableText> editTextAcc(do_QueryInterface(this));
  66     if (!editTextAcc)
  67       return E_NOINTERFACE;
  68     *ppv = static_cast<IAccessibleEditableText*>(this);
  69     (reinterpret_cast<IUnknown*>(*ppv))->AddRef();
  70     return S_OK;
  71   }
  72
  73   return E_NOINTERFACE;
  74 }
  75
  76 // IAccessibleEditableText
  77
  78 STDMETHODIMP
  79 CAccessibleEditableText::copyText(long aStartOffset, long aEndOffset)
  80 {
  81 __try {
  82   GET_NSIACCESSIBLEEDITABLETEXT
  83
  84   nsresult rv = textAcc->CopyText(aStartOffset, aEndOffset);
  85   return GetHRESULT(rv);
  86
  87 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
  88   return E_FAIL;
  89 }
  90
  91 STDMETHODIMP
  92 CAccessibleEditableText::deleteText(long aStartOffset, long aEndOffset)
  93 {
  94 __try {
  95   GET_NSIACCESSIBLEEDITABLETEXT
  96
  97   nsresult rv = textAcc->DeleteText(aStartOffset, aEndOffset);
  98   return GetHRESULT(rv);
  99
 100 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 101   return E_FAIL;
 102 }
 103
 104 STDMETHODIMP
 105 CAccessibleEditableText::insertText(long aOffset, BSTR *aText)
 106 {
 107 __try {
 108   GET_NSIACCESSIBLEEDITABLETEXT
 109
 110   PRUint32 length = ::SysStringLen(*aText);
 111   nsAutoString text(*aText, length);
 112
 113   nsresult rv = textAcc->InsertText(text, aOffset);
 114   return GetHRESULT(rv);
 115
 116 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 117   return E_FAIL;
 118 }
 119
 120 STDMETHODIMP
 121 CAccessibleEditableText::cutText(long aStartOffset, long aEndOffset)
 122 {
 123 __try {
 124   GET_NSIACCESSIBLEEDITABLETEXT
 125
 126   nsresult rv = textAcc->CutText(aStartOffset, aEndOffset);
 127   return GetHRESULT(rv);
 128
 129 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 130   return E_FAIL;
 131 }
 132
 133 STDMETHODIMP
 134 CAccessibleEditableText::pasteText(long aOffset)
 135 {
 136 __try {
 137   GET_NSIACCESSIBLEEDITABLETEXT
 138
 139   nsresult rv = textAcc->PasteText(aOffset);
 140   return GetHRESULT(rv);
 141
 142 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 143   return E_FAIL;
 144 }
 145
 146 STDMETHODIMP
 147 CAccessibleEditableText::replaceText(long aStartOffset, long aEndOffset,
 148                                      BSTR *aText)
 149 {
 150 __try {
 151   GET_NSIACCESSIBLEEDITABLETEXT
 152
 153   nsresult rv = textAcc->DeleteText(aStartOffset, aEndOffset);
 154   if (NS_FAILED(rv))
 155     return GetHRESULT(rv);
 156
 157   PRUint32 length = ::SysStringLen(*aText);
 158   nsAutoString text(*aText, length);
 159
 160   rv = textAcc->InsertText(text, aStartOffset);
 161   return GetHRESULT(rv);
 162
 163 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 164   return E_FAIL;
 165 }
 166
 167 STDMETHODIMP
 168 CAccessibleEditableText::setAttributes(long aStartOffset, long aEndOffset,
 169                                        BSTR *aAttributes)
 170 {
 171 __try {
 172
 173 } __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), GetExceptionInformation())) { }
 174   return E_NOTIMPL;
 175 }