1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/windows/ia2/ia2AccessibleComponent.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,136 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:expandtab:shiftwidth=2:tabstop=2:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "ia2AccessibleComponent.h"
1.12 +
1.13 +#include "AccessibleComponent_i.c"
1.14 +
1.15 +#include "AccessibleWrap.h"
1.16 +#include "States.h"
1.17 +#include "IUnknownImpl.h"
1.18 +
1.19 +#include "nsIFrame.h"
1.20 +
1.21 +using namespace mozilla::a11y;
1.22 +
1.23 +// IUnknown
1.24 +
1.25 +STDMETHODIMP
1.26 +ia2AccessibleComponent::QueryInterface(REFIID iid, void** ppv)
1.27 +{
1.28 + if (!ppv)
1.29 + return E_INVALIDARG;
1.30 +
1.31 + *ppv = nullptr;
1.32 +
1.33 + if (IID_IAccessibleComponent == iid) {
1.34 + *ppv = static_cast<IAccessibleComponent*>(this);
1.35 + (reinterpret_cast<IUnknown*>(*ppv))->AddRef();
1.36 + return S_OK;
1.37 + }
1.38 +
1.39 + return E_NOINTERFACE;
1.40 +}
1.41 +
1.42 +// IAccessibleComponent
1.43 +
1.44 +STDMETHODIMP
1.45 +ia2AccessibleComponent::get_locationInParent(long* aX, long* aY)
1.46 +{
1.47 + A11Y_TRYBLOCK_BEGIN
1.48 +
1.49 + if (!aX || !aY)
1.50 + return E_INVALIDARG;
1.51 +
1.52 + *aX = 0;
1.53 + *aY = 0;
1.54 +
1.55 + AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
1.56 + if (acc->IsDefunct())
1.57 + return CO_E_OBJNOTCONNECTED;
1.58 +
1.59 + // If the object is not on any screen the returned position is (0,0).
1.60 + uint64_t state = acc->State();
1.61 + if (state & states::INVISIBLE)
1.62 + return S_OK;
1.63 +
1.64 + int32_t x = 0, y = 0, width = 0, height = 0;
1.65 + nsresult rv = acc->GetBounds(&x, &y, &width, &height);
1.66 + if (NS_FAILED(rv))
1.67 + return GetHRESULT(rv);
1.68 +
1.69 + Accessible* parentAcc = acc->Parent();
1.70 +
1.71 + // The coordinates of the returned position are relative to this object's
1.72 + // parent or relative to the screen on which this object is rendered if it
1.73 + // has no parent.
1.74 + if (!parentAcc) {
1.75 + *aX = x;
1.76 + *aY = y;
1.77 + return S_OK;
1.78 + }
1.79 +
1.80 + // The coordinates of the bounding box are given relative to the parent's
1.81 + // coordinate system.
1.82 + int32_t parentx = 0, parenty = 0;
1.83 + rv = acc->GetBounds(&parentx, &parenty, &width, &height);
1.84 + if (NS_FAILED(rv))
1.85 + return GetHRESULT(rv);
1.86 +
1.87 + *aX = x - parentx;
1.88 + *aY = y - parenty;
1.89 + return S_OK;
1.90 +
1.91 + A11Y_TRYBLOCK_END
1.92 +}
1.93 +
1.94 +STDMETHODIMP
1.95 +ia2AccessibleComponent::get_foreground(IA2Color* aForeground)
1.96 +{
1.97 + A11Y_TRYBLOCK_BEGIN
1.98 +
1.99 + if (!aForeground)
1.100 + return E_INVALIDARG;
1.101 +
1.102 + *aForeground = 0;
1.103 +
1.104 + AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
1.105 + if (acc->IsDefunct())
1.106 + return CO_E_OBJNOTCONNECTED;
1.107 +
1.108 + nsIFrame* frame = acc->GetFrame();
1.109 + if (frame)
1.110 + *aForeground = frame->StyleColor()->mColor;
1.111 +
1.112 + return S_OK;
1.113 +
1.114 + A11Y_TRYBLOCK_END
1.115 +}
1.116 +
1.117 +STDMETHODIMP
1.118 +ia2AccessibleComponent::get_background(IA2Color* aBackground)
1.119 +{
1.120 + A11Y_TRYBLOCK_BEGIN
1.121 +
1.122 + if (!aBackground)
1.123 + return E_INVALIDARG;
1.124 +
1.125 + *aBackground = 0;
1.126 +
1.127 + AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
1.128 + if (acc->IsDefunct())
1.129 + return CO_E_OBJNOTCONNECTED;
1.130 +
1.131 + nsIFrame* frame = acc->GetFrame();
1.132 + if (frame)
1.133 + *aBackground = frame->StyleBackground()->mBackgroundColor;
1.134 +
1.135 + return S_OK;
1.136 +
1.137 + A11Y_TRYBLOCK_END
1.138 +}
1.139 +
