michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
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 "DocAccessibleWrap.h"
michael@0: 
michael@0: #include "Compatibility.h"
michael@0: #include "nsWinUtils.h"
michael@0: #include "mozilla/dom/TabChild.h"
michael@0: #include "Role.h"
michael@0: #include "RootAccessible.h"
michael@0: #include "sdnDocAccessible.h"
michael@0: #include "Statistics.h"
michael@0: 
michael@0: #include "nsIDocShell.h"
michael@0: #include "nsIInterfaceRequestorUtils.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // DocAccessibleWrap
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: DocAccessibleWrap::
michael@0:   DocAccessibleWrap(nsIDocument* aDocument, nsIContent* aRootContent,
michael@0:                     nsIPresShell* aPresShell) :
michael@0:   DocAccessible(aDocument, aRootContent, aPresShell), mHWND(nullptr)
michael@0: {
michael@0: }
michael@0: 
michael@0: DocAccessibleWrap::~DocAccessibleWrap()
michael@0: {
michael@0: }
michael@0: 
michael@0: IMPL_IUNKNOWN_QUERY_HEAD(DocAccessibleWrap)
michael@0:   if (aIID == IID_ISimpleDOMDocument) {
michael@0:     statistics::ISimpleDOMUsed();
michael@0:     *aInstancePtr = static_cast<ISimpleDOMDocument*>(new sdnDocAccessible(this));
michael@0:     static_cast<IUnknown*>(*aInstancePtr)->AddRef();
michael@0:     return S_OK;
michael@0:   }
michael@0: IMPL_IUNKNOWN_QUERY_TAIL_INHERITED(HyperTextAccessibleWrap)
michael@0: 
michael@0: STDMETHODIMP
michael@0: DocAccessibleWrap::get_accValue(VARIANT aVarChild, BSTR __RPC_FAR* aValue)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aValue)
michael@0:     return E_INVALIDARG;
michael@0:   *aValue = nullptr;
michael@0: 
michael@0:   // For backwards-compat, we still support old MSAA hack to provide URL in accValue
michael@0:   // Check for real value first
michael@0:   HRESULT hr = AccessibleWrap::get_accValue(aVarChild, aValue);
michael@0:   if (FAILED(hr) || *aValue || aVarChild.lVal != CHILDID_SELF)
michael@0:     return hr;
michael@0: 
michael@0:   // If document is being used to create a widget, don't use the URL hack
michael@0:   roles::Role role = Role();
michael@0:   if (role != roles::DOCUMENT && role != roles::APPLICATION && 
michael@0:       role != roles::DIALOG && role != roles::ALERT) 
michael@0:     return hr;
michael@0: 
michael@0:   nsAutoString URL;
michael@0:   nsresult rv = GetURL(URL);
michael@0:   if (URL.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aValue = ::SysAllocStringLen(URL.get(), URL.Length());
michael@0:   return *aValue ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // Accessible
michael@0: 
michael@0: void
michael@0: DocAccessibleWrap::Shutdown()
michael@0: {
michael@0:   // Do window emulation specific shutdown if emulation was started.
michael@0:   if (nsWinUtils::IsWindowEmulationStarted()) {
michael@0:     // Destroy window created for root document.
michael@0:     if (mDocFlags & eTabDocument) {
michael@0:       nsWinUtils::sHWNDCache->Remove(mHWND);
michael@0:       ::DestroyWindow(static_cast<HWND>(mHWND));
michael@0:     }
michael@0: 
michael@0:     mHWND = nullptr;
michael@0:   }
michael@0: 
michael@0:   DocAccessible::Shutdown();
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // DocAccessible public
michael@0: 
michael@0: void*
michael@0: DocAccessibleWrap::GetNativeWindow() const
michael@0: {
michael@0:   return mHWND ? mHWND : DocAccessible::GetNativeWindow();
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // DocAccessible protected
michael@0: 
michael@0: void
michael@0: DocAccessibleWrap::DoInitialUpdate()
michael@0: {
michael@0:   DocAccessible::DoInitialUpdate();
michael@0: 
michael@0:   if (nsWinUtils::IsWindowEmulationStarted()) {
michael@0:     // Create window for tab document.
michael@0:     if (mDocFlags & eTabDocument) {
michael@0:       mozilla::dom::TabChild* tabChild =
michael@0:         mozilla::dom::TabChild::GetFrom(mDocumentNode->GetShell());
michael@0: 
michael@0:       a11y::RootAccessible* rootDocument = RootAccessible();
michael@0: 
michael@0:       mozilla::WindowsHandle nativeData = 0;
michael@0:       if (tabChild)
michael@0:         tabChild->SendGetWidgetNativeData(&nativeData);
michael@0:       else
michael@0:         nativeData = reinterpret_cast<mozilla::WindowsHandle>(
michael@0:           rootDocument->GetNativeWindow());
michael@0: 
michael@0:       bool isActive = true;
michael@0:       int32_t x = CW_USEDEFAULT, y = CW_USEDEFAULT, width = 0, height = 0;
michael@0:       if (Compatibility::IsDolphin()) {
michael@0:         GetBounds(&x, &y, &width, &height);
michael@0:         int32_t rootX = 0, rootY = 0, rootWidth = 0, rootHeight = 0;
michael@0:         rootDocument->GetBounds(&rootX, &rootY, &rootWidth, &rootHeight);
michael@0:         x = rootX - x;
michael@0:         y -= rootY;
michael@0: 
michael@0:         nsCOMPtr<nsISupports> container = mDocumentNode->GetContainer();
michael@0:         nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(container);
michael@0:         docShell->GetIsActive(&isActive);
michael@0:       }
michael@0: 
michael@0:       HWND parentWnd = reinterpret_cast<HWND>(nativeData);
michael@0:       mHWND = nsWinUtils::CreateNativeWindow(kClassNameTabContent, parentWnd,
michael@0:                                              x, y, width, height, isActive);
michael@0: 
michael@0:       nsWinUtils::sHWNDCache->Put(mHWND, this);
michael@0: 
michael@0:     } else {
michael@0:       DocAccessible* parentDocument = ParentDocument();
michael@0:       if (parentDocument)
michael@0:         mHWND = parentDocument->GetNativeWindow();
michael@0:     }
michael@0:   }
michael@0: }