1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/windows/msaa/DocAccessibleWrap.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,157 @@
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 "DocAccessibleWrap.h"
1.11 +
1.12 +#include "Compatibility.h"
1.13 +#include "nsWinUtils.h"
1.14 +#include "mozilla/dom/TabChild.h"
1.15 +#include "Role.h"
1.16 +#include "RootAccessible.h"
1.17 +#include "sdnDocAccessible.h"
1.18 +#include "Statistics.h"
1.19 +
1.20 +#include "nsIDocShell.h"
1.21 +#include "nsIInterfaceRequestorUtils.h"
1.22 +
1.23 +using namespace mozilla;
1.24 +using namespace mozilla::a11y;
1.25 +
1.26 +////////////////////////////////////////////////////////////////////////////////
1.27 +// DocAccessibleWrap
1.28 +////////////////////////////////////////////////////////////////////////////////
1.29 +
1.30 +DocAccessibleWrap::
1.31 + DocAccessibleWrap(nsIDocument* aDocument, nsIContent* aRootContent,
1.32 + nsIPresShell* aPresShell) :
1.33 + DocAccessible(aDocument, aRootContent, aPresShell), mHWND(nullptr)
1.34 +{
1.35 +}
1.36 +
1.37 +DocAccessibleWrap::~DocAccessibleWrap()
1.38 +{
1.39 +}
1.40 +
1.41 +IMPL_IUNKNOWN_QUERY_HEAD(DocAccessibleWrap)
1.42 + if (aIID == IID_ISimpleDOMDocument) {
1.43 + statistics::ISimpleDOMUsed();
1.44 + *aInstancePtr = static_cast<ISimpleDOMDocument*>(new sdnDocAccessible(this));
1.45 + static_cast<IUnknown*>(*aInstancePtr)->AddRef();
1.46 + return S_OK;
1.47 + }
1.48 +IMPL_IUNKNOWN_QUERY_TAIL_INHERITED(HyperTextAccessibleWrap)
1.49 +
1.50 +STDMETHODIMP
1.51 +DocAccessibleWrap::get_accValue(VARIANT aVarChild, BSTR __RPC_FAR* aValue)
1.52 +{
1.53 + A11Y_TRYBLOCK_BEGIN
1.54 +
1.55 + if (!aValue)
1.56 + return E_INVALIDARG;
1.57 + *aValue = nullptr;
1.58 +
1.59 + // For backwards-compat, we still support old MSAA hack to provide URL in accValue
1.60 + // Check for real value first
1.61 + HRESULT hr = AccessibleWrap::get_accValue(aVarChild, aValue);
1.62 + if (FAILED(hr) || *aValue || aVarChild.lVal != CHILDID_SELF)
1.63 + return hr;
1.64 +
1.65 + // If document is being used to create a widget, don't use the URL hack
1.66 + roles::Role role = Role();
1.67 + if (role != roles::DOCUMENT && role != roles::APPLICATION &&
1.68 + role != roles::DIALOG && role != roles::ALERT)
1.69 + return hr;
1.70 +
1.71 + nsAutoString URL;
1.72 + nsresult rv = GetURL(URL);
1.73 + if (URL.IsEmpty())
1.74 + return S_FALSE;
1.75 +
1.76 + *aValue = ::SysAllocStringLen(URL.get(), URL.Length());
1.77 + return *aValue ? S_OK : E_OUTOFMEMORY;
1.78 +
1.79 + A11Y_TRYBLOCK_END
1.80 +}
1.81 +
1.82 +////////////////////////////////////////////////////////////////////////////////
1.83 +// Accessible
1.84 +
1.85 +void
1.86 +DocAccessibleWrap::Shutdown()
1.87 +{
1.88 + // Do window emulation specific shutdown if emulation was started.
1.89 + if (nsWinUtils::IsWindowEmulationStarted()) {
1.90 + // Destroy window created for root document.
1.91 + if (mDocFlags & eTabDocument) {
1.92 + nsWinUtils::sHWNDCache->Remove(mHWND);
1.93 + ::DestroyWindow(static_cast<HWND>(mHWND));
1.94 + }
1.95 +
1.96 + mHWND = nullptr;
1.97 + }
1.98 +
1.99 + DocAccessible::Shutdown();
1.100 +}
1.101 +
1.102 +////////////////////////////////////////////////////////////////////////////////
1.103 +// DocAccessible public
1.104 +
1.105 +void*
1.106 +DocAccessibleWrap::GetNativeWindow() const
1.107 +{
1.108 + return mHWND ? mHWND : DocAccessible::GetNativeWindow();
1.109 +}
1.110 +
1.111 +////////////////////////////////////////////////////////////////////////////////
1.112 +// DocAccessible protected
1.113 +
1.114 +void
1.115 +DocAccessibleWrap::DoInitialUpdate()
1.116 +{
1.117 + DocAccessible::DoInitialUpdate();
1.118 +
1.119 + if (nsWinUtils::IsWindowEmulationStarted()) {
1.120 + // Create window for tab document.
1.121 + if (mDocFlags & eTabDocument) {
1.122 + mozilla::dom::TabChild* tabChild =
1.123 + mozilla::dom::TabChild::GetFrom(mDocumentNode->GetShell());
1.124 +
1.125 + a11y::RootAccessible* rootDocument = RootAccessible();
1.126 +
1.127 + mozilla::WindowsHandle nativeData = 0;
1.128 + if (tabChild)
1.129 + tabChild->SendGetWidgetNativeData(&nativeData);
1.130 + else
1.131 + nativeData = reinterpret_cast<mozilla::WindowsHandle>(
1.132 + rootDocument->GetNativeWindow());
1.133 +
1.134 + bool isActive = true;
1.135 + int32_t x = CW_USEDEFAULT, y = CW_USEDEFAULT, width = 0, height = 0;
1.136 + if (Compatibility::IsDolphin()) {
1.137 + GetBounds(&x, &y, &width, &height);
1.138 + int32_t rootX = 0, rootY = 0, rootWidth = 0, rootHeight = 0;
1.139 + rootDocument->GetBounds(&rootX, &rootY, &rootWidth, &rootHeight);
1.140 + x = rootX - x;
1.141 + y -= rootY;
1.142 +
1.143 + nsCOMPtr<nsISupports> container = mDocumentNode->GetContainer();
1.144 + nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(container);
1.145 + docShell->GetIsActive(&isActive);
1.146 + }
1.147 +
1.148 + HWND parentWnd = reinterpret_cast<HWND>(nativeData);
1.149 + mHWND = nsWinUtils::CreateNativeWindow(kClassNameTabContent, parentWnd,
1.150 + x, y, width, height, isActive);
1.151 +
1.152 + nsWinUtils::sHWNDCache->Put(mHWND, this);
1.153 +
1.154 + } else {
1.155 + DocAccessible* parentDocument = ParentDocument();
1.156 + if (parentDocument)
1.157 + mHWND = parentDocument->GetNativeWindow();
1.158 + }
1.159 + }
1.160 +}
