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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /accessible/windows/msaa/DocAccessibleWrap.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'accessible/windows/msaa/DocAccessibleWrap.cpp')
-rw-r--r--accessible/windows/msaa/DocAccessibleWrap.cpp165
1 files changed, 165 insertions, 0 deletions
diff --git a/accessible/windows/msaa/DocAccessibleWrap.cpp b/accessible/windows/msaa/DocAccessibleWrap.cpp
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+++ b/accessible/windows/msaa/DocAccessibleWrap.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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 "DocAccessibleWrap.h"
+
+#include "Compatibility.h"
+#include "DocAccessibleChild.h"
+#include "nsWinUtils.h"
+#include "Role.h"
+#include "RootAccessible.h"
+#include "sdnDocAccessible.h"
+#include "Statistics.h"
+
+#include "nsIDocShell.h"
+#include "nsIInterfaceRequestorUtils.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+////////////////////////////////////////////////////////////////////////////////
+// DocAccessibleWrap
+////////////////////////////////////////////////////////////////////////////////
+
+DocAccessibleWrap::
+ DocAccessibleWrap(nsIDocument* aDocument, nsIPresShell* aPresShell) :
+ DocAccessible(aDocument, aPresShell), mHWND(nullptr)
+{
+}
+
+DocAccessibleWrap::~DocAccessibleWrap()
+{
+}
+
+IMPL_IUNKNOWN_QUERY_HEAD(DocAccessibleWrap)
+ if (aIID == IID_ISimpleDOMDocument) {
+ statistics::ISimpleDOMUsed();
+ *aInstancePtr = static_cast<ISimpleDOMDocument*>(new sdnDocAccessible(this));
+ static_cast<IUnknown*>(*aInstancePtr)->AddRef();
+ return S_OK;
+ }
+IMPL_IUNKNOWN_QUERY_TAIL_INHERITED(HyperTextAccessibleWrap)
+
+STDMETHODIMP
+DocAccessibleWrap::get_accParent(
+ /* [retval][out] */ IDispatch __RPC_FAR *__RPC_FAR *ppdispParent)
+{
+ // We might be a top-level document in a content process.
+ DocAccessibleChild* ipcDoc = IPCDoc();
+ if (!ipcDoc) {
+ return DocAccessible::get_accParent(ppdispParent);
+ }
+ IAccessible* dispParent = ipcDoc->GetParentIAccessible();
+ if (!dispParent) {
+ return S_FALSE;
+ }
+
+ dispParent->AddRef();
+ *ppdispParent = static_cast<IDispatch*>(dispParent);
+ return S_OK;
+}
+
+STDMETHODIMP
+DocAccessibleWrap::get_accValue(VARIANT aVarChild, BSTR __RPC_FAR* aValue)
+{
+ A11Y_TRYBLOCK_BEGIN
+
+ if (!aValue)
+ return E_INVALIDARG;
+ *aValue = nullptr;
+
+ // For backwards-compat, we still support old MSAA hack to provide URL in accValue
+ // Check for real value first
+ HRESULT hr = AccessibleWrap::get_accValue(aVarChild, aValue);
+ if (FAILED(hr) || *aValue || aVarChild.lVal != CHILDID_SELF)
+ return hr;
+
+ // If document is being used to create a widget, don't use the URL hack
+ roles::Role role = Role();
+ if (role != roles::DOCUMENT && role != roles::APPLICATION &&
+ role != roles::DIALOG && role != roles::ALERT)
+ return hr;
+
+ nsAutoString url;
+ URL(url);
+ if (url.IsEmpty())
+ return S_FALSE;
+
+ *aValue = ::SysAllocStringLen(url.get(), url.Length());
+ return *aValue ? S_OK : E_OUTOFMEMORY;
+
+ A11Y_TRYBLOCK_END
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Accessible
+
+void
+DocAccessibleWrap::Shutdown()
+{
+ // Do window emulation specific shutdown if emulation was started.
+ if (nsWinUtils::IsWindowEmulationStarted()) {
+ // Destroy window created for root document.
+ if (mDocFlags & eTabDocument) {
+ HWND hWnd = static_cast<HWND>(mHWND);
+ ::RemovePropW(hWnd, kPropNameDocAcc);
+ ::DestroyWindow(hWnd);
+ }
+
+ mHWND = nullptr;
+ }
+
+ DocAccessible::Shutdown();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// DocAccessible public
+
+void*
+DocAccessibleWrap::GetNativeWindow() const
+{
+ return mHWND ? mHWND : DocAccessible::GetNativeWindow();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// DocAccessible protected
+
+void
+DocAccessibleWrap::DoInitialUpdate()
+{
+ DocAccessible::DoInitialUpdate();
+
+ if (nsWinUtils::IsWindowEmulationStarted()) {
+ // Create window for tab document.
+ if (mDocFlags & eTabDocument) {
+ a11y::RootAccessible* rootDocument = RootAccessible();
+ bool isActive = true;
+ nsIntRect rect(CW_USEDEFAULT, CW_USEDEFAULT, 0, 0);
+ if (Compatibility::IsDolphin()) {
+ rect = Bounds();
+ nsIntRect rootRect = rootDocument->Bounds();
+ rect.x = rootRect.x - rect.x;
+ rect.y -= rootRect.y;
+
+ nsCOMPtr<nsISupports> container = mDocumentNode->GetContainer();
+ nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(container);
+ docShell->GetIsActive(&isActive);
+ }
+
+ HWND parentWnd = reinterpret_cast<HWND>(rootDocument->GetNativeWindow());
+ mHWND = nsWinUtils::CreateNativeWindow(kClassNameTabContent, parentWnd,
+ rect.x, rect.y,
+ rect.width, rect.height, isActive);
+
+ ::SetPropW(static_cast<HWND>(mHWND), kPropNameDocAcc, (HANDLE)this);
+
+ } else {
+ DocAccessible* parentDocument = ParentDocument();
+ if (parentDocument)
+ mHWND = parentDocument->GetNativeWindow();
+ }
+ }
+}