michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:expandtab:shiftwidth=2:tabstop=2:
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "ia2AccessibleComponent.h"
michael@0: 
michael@0: #include "AccessibleComponent_i.c"
michael@0: 
michael@0: #include "AccessibleWrap.h"
michael@0: #include "States.h"
michael@0: #include "IUnknownImpl.h"
michael@0: 
michael@0: #include "nsIFrame.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: // IUnknown
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleComponent::QueryInterface(REFIID iid, void** ppv)
michael@0: {
michael@0:   if (!ppv)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *ppv = nullptr;
michael@0: 
michael@0:   if (IID_IAccessibleComponent == iid) {
michael@0:     *ppv = static_cast<IAccessibleComponent*>(this);
michael@0:     (reinterpret_cast<IUnknown*>(*ppv))->AddRef();
michael@0:     return S_OK;
michael@0:   }
michael@0: 
michael@0:   return E_NOINTERFACE;
michael@0: }
michael@0: 
michael@0: // IAccessibleComponent
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleComponent::get_locationInParent(long* aX, long* aY)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aX || !aY)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aX = 0;
michael@0:   *aY = 0;
michael@0: 
michael@0:   AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
michael@0:   if (acc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   // If the object is not on any screen the returned position is (0,0).
michael@0:   uint64_t state = acc->State();
michael@0:   if (state & states::INVISIBLE)
michael@0:     return S_OK;
michael@0: 
michael@0:   int32_t x = 0, y = 0, width = 0, height = 0;
michael@0:   nsresult rv = acc->GetBounds(&x, &y, &width, &height);
michael@0:   if (NS_FAILED(rv))
michael@0:     return GetHRESULT(rv);
michael@0: 
michael@0:   Accessible* parentAcc = acc->Parent();
michael@0: 
michael@0:   // The coordinates of the returned position are relative to this object's
michael@0:   // parent or relative to the screen on which this object is rendered if it
michael@0:   // has no parent.
michael@0:   if (!parentAcc) {
michael@0:     *aX = x;
michael@0:     *aY = y;
michael@0:     return S_OK;
michael@0:   }
michael@0: 
michael@0:   // The coordinates of the bounding box are given relative to the parent's
michael@0:   // coordinate system.
michael@0:   int32_t parentx = 0, parenty = 0;
michael@0:   rv = acc->GetBounds(&parentx, &parenty, &width, &height);
michael@0:   if (NS_FAILED(rv))
michael@0:     return GetHRESULT(rv);
michael@0: 
michael@0:   *aX = x - parentx;
michael@0:   *aY = y - parenty;
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleComponent::get_foreground(IA2Color* aForeground)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aForeground)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aForeground = 0;
michael@0: 
michael@0:   AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
michael@0:   if (acc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   nsIFrame* frame = acc->GetFrame();
michael@0:   if (frame)
michael@0:     *aForeground = frame->StyleColor()->mColor;
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleComponent::get_background(IA2Color* aBackground)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aBackground)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aBackground = 0;
michael@0: 
michael@0:   AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
michael@0:   if (acc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   nsIFrame* frame = acc->GetFrame();
michael@0:   if (frame)
michael@0:     *aBackground = frame->StyleBackground()->mBackgroundColor;
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: