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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ia2AccessibleComponent.h"
#include "AccessibleComponent_i.c"
#include "AccessibleWrap.h"
#include "States.h"
#include "IUnknownImpl.h"
#include "nsIFrame.h"
using namespace mozilla::a11y;
// IUnknown
STDMETHODIMP
ia2AccessibleComponent::QueryInterface(REFIID iid, void** ppv)
{
if (!ppv)
return E_INVALIDARG;
*ppv = nullptr;
if (IID_IAccessibleComponent == iid) {
*ppv = static_cast<IAccessibleComponent*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
// IAccessibleComponent
STDMETHODIMP
ia2AccessibleComponent::get_locationInParent(long* aX, long* aY)
{
A11Y_TRYBLOCK_BEGIN
if (!aX || !aY)
return E_INVALIDARG;
*aX = 0;
*aY = 0;
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
// If the object is not on any screen the returned position is (0,0).
uint64_t state = acc->State();
if (state & states::INVISIBLE)
return S_OK;
nsIntRect rect = acc->Bounds();
// The coordinates of the returned position are relative to this object's
// parent or relative to the screen on which this object is rendered if it
// has no parent.
if (!acc->Parent()) {
*aX = rect.x;
*aY = rect.y;
return S_OK;
}
// The coordinates of the bounding box are given relative to the parent's
// coordinate system.
nsIntRect parentRect = acc->Parent()->Bounds();
*aX = rect.x - parentRect.x;
*aY = rect.y - parentRect.y;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleComponent::get_foreground(IA2Color* aForeground)
{
A11Y_TRYBLOCK_BEGIN
if (!aForeground)
return E_INVALIDARG;
*aForeground = 0;
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsIFrame* frame = acc->GetFrame();
if (frame)
*aForeground = frame->StyleColor()->mColor;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleComponent::get_background(IA2Color* aBackground)
{
A11Y_TRYBLOCK_BEGIN
if (!aBackground)
return E_INVALIDARG;
*aBackground = 0;
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsIFrame* frame = acc->GetFrame();
if (frame)
*aBackground = frame->StyleBackground()->mBackgroundColor;
return S_OK;
A11Y_TRYBLOCK_END
}
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