accessible/xpcom/xpcAccessibleHyperLink.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 file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "xpcAccessibleHyperLink.h"
   8
   9 #include "LocalAccessible-inl.h"
  10 #include "mozilla/StaticPrefs_accessibility.h"
  11 #include "nsNetUtil.h"
  12 #include "xpcAccessibleDocument.h"
  13
  14 using namespace mozilla::a11y;
  15
  16 NS_IMETHODIMP
  17 xpcAccessibleHyperLink::GetStartIndex(int32_t* aStartIndex) {
  18   NS_ENSURE_ARG_POINTER(aStartIndex);
  19   *aStartIndex = 0;
  20
  21   if (!Intl()) return NS_ERROR_FAILURE;
  22
  23 #if defined(XP_WIN)
  24   if (Intl()->IsRemote() &&
  25       !StaticPrefs::accessibility_cache_enabled_AtStartup()) {
  26     return NS_ERROR_NOT_IMPLEMENTED;
  27   }
  28 #endif
  29
  30   *aStartIndex = static_cast<int32_t>(Intl()->StartOffset());
  31   return NS_OK;
  32 }
  33
  34 NS_IMETHODIMP
  35 xpcAccessibleHyperLink::GetEndIndex(int32_t* aEndIndex) {
  36   NS_ENSURE_ARG_POINTER(aEndIndex);
  37   *aEndIndex = 0;
  38
  39   if (!Intl()) return NS_ERROR_FAILURE;
  40
  41 #if defined(XP_WIN)
  42   if (Intl()->IsRemote() &&
  43       !StaticPrefs::accessibility_cache_enabled_AtStartup()) {
  44     return NS_ERROR_NOT_IMPLEMENTED;
  45   }
  46 #endif
  47
  48   *aEndIndex = static_cast<int32_t>(Intl()->EndOffset());
  49   return NS_OK;
  50 }
  51
  52 NS_IMETHODIMP
  53 xpcAccessibleHyperLink::GetAnchorCount(int32_t* aAnchorCount) {
  54   NS_ENSURE_ARG_POINTER(aAnchorCount);
  55   *aAnchorCount = 0;
  56
  57   if (!Intl()) return NS_ERROR_FAILURE;
  58
  59   if (Intl()->IsLocal()) {
  60     *aAnchorCount = Intl()->AsLocal()->AnchorCount();
  61   } else {
  62 #if defined(XP_WIN)
  63     return NS_ERROR_NOT_IMPLEMENTED;
  64 #else
  65     bool isCountValid = false;
  66     uint32_t anchorCount = Intl()->AsRemote()->AnchorCount(&isCountValid);
  67     if (!isCountValid) return NS_ERROR_FAILURE;
  68
  69     *aAnchorCount = anchorCount;
  70 #endif
  71   }
  72
  73   return NS_OK;
  74 }
  75
  76 NS_IMETHODIMP
  77 xpcAccessibleHyperLink::GetURI(int32_t aIndex, nsIURI** aURI) {
  78   NS_ENSURE_ARG_POINTER(aURI);
  79
  80   if (!Intl()) return NS_ERROR_FAILURE;
  81
  82   if (aIndex < 0) return NS_ERROR_INVALID_ARG;
  83
  84   if (Intl()->IsLocal()) {
  85     if (aIndex >= static_cast<int32_t>(Intl()->AsLocal()->AnchorCount())) {
  86       return NS_ERROR_INVALID_ARG;
  87     }
  88
  89     RefPtr<nsIURI>(Intl()->AsLocal()->AnchorURIAt(aIndex)).forget(aURI);
  90   } else {
  91 #if defined(XP_WIN)
  92     return NS_ERROR_NOT_IMPLEMENTED;
  93 #else
  94     nsCString spec;
  95     bool isURIValid = false;
  96     Intl()->AsRemote()->AnchorURIAt(aIndex, spec, &isURIValid);
  97     if (!isURIValid) return NS_ERROR_FAILURE;
  98
  99     nsCOMPtr<nsIURI> uri;
 100     nsresult rv = NS_NewURI(getter_AddRefs(uri), spec);
 101     NS_ENSURE_SUCCESS(rv, rv);
 102
 103     uri.forget(aURI);
 104 #endif
 105   }
 106
 107   return NS_OK;
 108 }
 109
 110 NS_IMETHODIMP
 111 xpcAccessibleHyperLink::GetAnchor(int32_t aIndex, nsIAccessible** aAccessible) {
 112   NS_ENSURE_ARG_POINTER(aAccessible);
 113   *aAccessible = nullptr;
 114
 115   if (!Intl()) return NS_ERROR_FAILURE;
 116
 117   if (aIndex < 0) return NS_ERROR_INVALID_ARG;
 118
 119   if (Intl()->IsLocal()) {
 120     if (aIndex >= static_cast<int32_t>(Intl()->AsLocal()->AnchorCount())) {
 121       return NS_ERROR_INVALID_ARG;
 122     }
 123
 124     NS_IF_ADDREF(*aAccessible = ToXPC(Intl()->AsLocal()->AnchorAt(aIndex)));
 125   } else {
 126 #if defined(XP_WIN)
 127     return NS_ERROR_NOT_IMPLEMENTED;
 128 #else
 129     NS_IF_ADDREF(*aAccessible = ToXPC(Intl()->AsRemote()->AnchorAt(aIndex)));
 130 #endif
 131   }
 132
 133   return NS_OK;
 134 }
 135
 136 NS_IMETHODIMP
 137 xpcAccessibleHyperLink::GetValid(bool* aValid) {
 138   NS_ENSURE_ARG_POINTER(aValid);
 139   *aValid = false;
 140
 141   if (!Intl()) return NS_ERROR_FAILURE;
 142
 143   if (Intl()->IsLocal()) {
 144     *aValid = Intl()->AsLocal()->IsLinkValid();
 145   } else {
 146 #if defined(XP_WIN)
 147     return NS_ERROR_NOT_IMPLEMENTED;
 148 #else
 149     *aValid = Intl()->AsRemote()->IsLinkValid();
 150 #endif
 151   }
 152
 153   return NS_OK;
 154 }