The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/accessible/src/atk/nsMaiInterfaceComponent.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,116 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "InterfaceInitFuncs.h"
    1.11 +
    1.12 +#include "AccessibleWrap.h"
    1.13 +#include "nsAccUtils.h"
    1.14 +#include "nsCoreUtils.h"
    1.15 +#include "nsMai.h"
    1.16 +#include "mozilla/Likely.h"
    1.17 +
    1.18 +using namespace mozilla::a11y;
    1.19 +
    1.20 +extern "C" {
    1.21 +
    1.22 +static AtkObject*
    1.23 +refAccessibleAtPointCB(AtkComponent* aComponent, gint aAccX, gint aAccY,
    1.24 +                       AtkCoordType aCoordType)
    1.25 +{
    1.26 +  return refAccessibleAtPointHelper(GetAccessibleWrap(ATK_OBJECT(aComponent)),
    1.27 +                                    aAccX, aAccY, aCoordType);
    1.28 +}
    1.29 +
    1.30 +static void
    1.31 +getExtentsCB(AtkComponent* aComponent, gint* aX, gint* aY,
    1.32 +             gint* aWidth, gint* aHeight, AtkCoordType aCoordType)
    1.33 +{
    1.34 +  getExtentsHelper(GetAccessibleWrap(ATK_OBJECT(aComponent)),
    1.35 +                   aX, aY, aWidth, aHeight, aCoordType);
    1.36 +}
    1.37 +
    1.38 +static gboolean
    1.39 +grabFocusCB(AtkComponent* aComponent)
    1.40 +{
    1.41 +  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aComponent));
    1.42 +  if (!accWrap)
    1.43 +    return FALSE;
    1.44 +
    1.45 +  nsresult rv = accWrap->TakeFocus();
    1.46 +  return (NS_FAILED(rv)) ? FALSE : TRUE;
    1.47 +}
    1.48 +}
    1.49 +
    1.50 +AtkObject*
    1.51 +refAccessibleAtPointHelper(AccessibleWrap* aAccWrap, gint aX, gint aY,
    1.52 +                           AtkCoordType aCoordType)
    1.53 +{
    1.54 +  if (!aAccWrap || aAccWrap->IsDefunct() || nsAccUtils::MustPrune(aAccWrap))
    1.55 +    return nullptr;
    1.56 +
    1.57 +  // Accessible::ChildAtPoint(x,y) is in screen pixels.
    1.58 +  if (aCoordType == ATK_XY_WINDOW) {
    1.59 +    nsIntPoint winCoords =
    1.60 +      nsCoreUtils::GetScreenCoordsForWindow(aAccWrap->GetNode());
    1.61 +    aX += winCoords.x;
    1.62 +    aY += winCoords.y;
    1.63 +  }
    1.64 +
    1.65 +  Accessible* accAtPoint = aAccWrap->ChildAtPoint(aX, aY,
    1.66 +                                                  Accessible::eDirectChild);
    1.67 +  if (!accAtPoint)
    1.68 +    return nullptr;
    1.69 +
    1.70 +  AtkObject* atkObj = AccessibleWrap::GetAtkObject(accAtPoint);
    1.71 +  if (atkObj)
    1.72 +    g_object_ref(atkObj);
    1.73 +  return atkObj;
    1.74 +}
    1.75 +
    1.76 +void
    1.77 +getExtentsHelper(AccessibleWrap* aAccWrap,
    1.78 +                 gint* aX, gint* aY, gint* aWidth, gint* aHeight,
    1.79 +                 AtkCoordType aCoordType)
    1.80 +{
    1.81 +  *aX = *aY = *aWidth = *aHeight = 0;
    1.82 +
    1.83 +  if (!aAccWrap || aAccWrap->IsDefunct())
    1.84 +    return;
    1.85 +
    1.86 +  int32_t x = 0, y = 0, width = 0, height = 0;
    1.87 +  // Returned in screen coordinates
    1.88 +  nsresult rv = aAccWrap->GetBounds(&x, &y, &width, &height);
    1.89 +  if (NS_FAILED(rv))
    1.90 +    return;
    1.91 +
    1.92 +  if (aCoordType == ATK_XY_WINDOW) {
    1.93 +    nsIntPoint winCoords =
    1.94 +      nsCoreUtils::GetScreenCoordsForWindow(aAccWrap->GetNode());
    1.95 +    x -= winCoords.x;
    1.96 +    y -= winCoords.y;
    1.97 +  }
    1.98 +
    1.99 +  *aX = x;
   1.100 +  *aY = y;
   1.101 +  *aWidth = width;
   1.102 +  *aHeight = height;
   1.103 +}
   1.104 +
   1.105 +void
   1.106 +componentInterfaceInitCB(AtkComponentIface* aIface)
   1.107 +{
   1.108 +  NS_ASSERTION(aIface, "Invalid Interface");
   1.109 +  if(MOZ_UNLIKELY(!aIface))
   1.110 +    return;
   1.111 +
   1.112 +  /*
   1.113 +   * Use default implementation in atk for contains, get_position,
   1.114 +   * and get_size
   1.115 +   */
   1.116 +  aIface->ref_accessible_at_point = refAccessibleAtPointCB;
   1.117 +  aIface->get_extents = getExtentsCB;
   1.118 +  aIface->grab_focus = grabFocusCB;
   1.119 +}