accessible/atk/nsMaiInterfaceEditableText.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "InterfaceInitFuncs.h"
   8
   9 #include "LocalAccessible-inl.h"
  10 #include "HyperTextAccessible-inl.h"
  11 #include "nsMai.h"
  12 #include "RemoteAccessible.h"
  13 #include "nsString.h"
  14 #include "mozilla/Likely.h"
  15
  16 using namespace mozilla::a11y;
  17
  18 extern "C" {
  19 static void setTextContentsCB(AtkEditableText* aText, const gchar* aString) {
  20   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  21   if (accWrap) {
  22     HyperTextAccessible* text = accWrap->AsHyperText();
  23     if (!text || !text->IsTextRole()) {
  24       return;
  25     }
  26
  27     NS_ConvertUTF8toUTF16 strContent(aString);
  28     text->ReplaceText(strContent);
  29   } else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
  30     NS_ConvertUTF8toUTF16 strContent(aString);
  31     proxy->ReplaceText(strContent);
  32   }
  33 }
  34
  35 static void insertTextCB(AtkEditableText* aText, const gchar* aString,
  36                          gint aLength, gint* aPosition) {
  37   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  38   if (accWrap) {
  39     HyperTextAccessible* text = accWrap->AsHyperText();
  40     if (!text || !text->IsTextRole()) {
  41       return;
  42     }
  43
  44     NS_ConvertUTF8toUTF16 strContent(aString);
  45     text->InsertText(strContent, *aPosition);
  46   } else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
  47     NS_ConvertUTF8toUTF16 strContent(aString);
  48     proxy->InsertText(strContent, *aPosition);
  49   }
  50 }
  51
  52 static void copyTextCB(AtkEditableText* aText, gint aStartPos, gint aEndPos) {
  53   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  54   if (accWrap) {
  55     HyperTextAccessible* text = accWrap->AsHyperText();
  56     if (!text || !text->IsTextRole()) {
  57       return;
  58     }
  59
  60     text->CopyText(aStartPos, aEndPos);
  61   } else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
  62     proxy->CopyText(aStartPos, aEndPos);
  63   }
  64 }
  65
  66 static void cutTextCB(AtkEditableText* aText, gint aStartPos, gint aEndPos) {
  67   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  68   if (accWrap) {
  69     HyperTextAccessible* text = accWrap->AsHyperText();
  70     if (!text || !text->IsTextRole()) {
  71       return;
  72     }
  73
  74     text->CutText(aStartPos, aEndPos);
  75   } else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
  76     proxy->CutText(aStartPos, aEndPos);
  77   }
  78 }
  79
  80 static void deleteTextCB(AtkEditableText* aText, gint aStartPos, gint aEndPos) {
  81   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  82   if (accWrap) {
  83     HyperTextAccessible* text = accWrap->AsHyperText();
  84     if (!text || !text->IsTextRole()) {
  85       return;
  86     }
  87
  88     text->DeleteText(aStartPos, aEndPos);
  89   } else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
  90     proxy->DeleteText(aStartPos, aEndPos);
  91   }
  92 }
  93
  94 MOZ_CAN_RUN_SCRIPT_BOUNDARY
  95 static void pasteTextCB(AtkEditableText* aText, gint aPosition) {
  96   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  97   if (accWrap) {
  98     RefPtr<HyperTextAccessible> text = accWrap->AsHyperText();
  99     if (!text || !text->IsTextRole()) {
 100       return;
 101     }
 102
 103     text->PasteText(aPosition);
 104   } else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
 105     proxy->PasteText(aPosition);
 106   }
 107 }
 108 }
 109
 110 void editableTextInterfaceInitCB(AtkEditableTextIface* aIface) {
 111   NS_ASSERTION(aIface, "Invalid aIface");
 112   if (MOZ_UNLIKELY(!aIface)) return;
 113
 114   aIface->set_text_contents = setTextContentsCB;
 115   aIface->insert_text = insertTextCB;
 116   aIface->copy_text = copyTextCB;
 117   aIface->cut_text = cutTextCB;
 118   aIface->delete_text = deleteTextCB;
 119   aIface->paste_text = pasteTextCB;
 120 }