--- a/WebKitTools/DumpRenderTree/win/AccessibilityControllerWin.cpp Fri Sep 17 09:02:29 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,294 +0,0 @@
-/*
- * Copyright (C) 2008, 2009, 2010 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "AccessibilityController.h"
-
-#include "AccessibilityUIElement.h"
-#include "DumpRenderTree.h"
-#include "FrameLoadDelegate.h"
-#include <JavaScriptCore/Assertions.h>
-#include <JavaScriptCore/JSRetainPtr.h>
-#include <JavaScriptCore/JSStringRef.h>
-#include <WebCore/COMPtr.h>
-#include <WebKit/WebKit.h>
-#include <oleacc.h>
-#include <string>
-
-using namespace std;
-
-AccessibilityController::AccessibilityController()
- : m_focusEventHook(0)
- , m_scrollingStartEventHook(0)
- , m_valueChangeEventHook(0)
- , m_allEventsHook(0)
-{
-}
-
-AccessibilityController::~AccessibilityController()
-{
- setLogFocusEvents(false);
- setLogValueChangeEvents(false);
-
- if (m_allEventsHook)
- UnhookWinEvent(m_allEventsHook);
-
- for (HashMap<PlatformUIElement, JSObjectRef>::iterator it = m_notificationListeners.begin(); it != m_notificationListeners.end(); ++it)
- JSValueUnprotect(frame->globalContext(), it->second);
-}
-
-AccessibilityUIElement AccessibilityController::elementAtPoint(int x, int y)
-{
- // FIXME: implement
- return 0;
-}
-
-AccessibilityUIElement AccessibilityController::focusedElement()
-{
- COMPtr<IAccessible> rootAccessible = rootElement().platformUIElement();
-
- VARIANT vFocus;
- if (FAILED(rootAccessible->get_accFocus(&vFocus)))
- return 0;
-
- if (V_VT(&vFocus) == VT_I4) {
- ASSERT(V_I4(&vFocus) == CHILDID_SELF);
- // The root accessible object is the focused object.
- return rootAccessible;
- }
-
- ASSERT(V_VT(&vFocus) == VT_DISPATCH);
- // We have an IDispatch; query for IAccessible.
- return COMPtr<IAccessible>(Query, V_DISPATCH(&vFocus));
-}
-
-AccessibilityUIElement AccessibilityController::rootElement()
-{
- COMPtr<IWebView> view;
- if (FAILED(frame->webView(&view)))
- return 0;
-
- COMPtr<IWebViewPrivate> viewPrivate(Query, view);
- if (!viewPrivate)
- return 0;
-
- HWND webViewWindow;
- if (FAILED(viewPrivate->viewWindow((OLE_HANDLE*)&webViewWindow)))
- return 0;
-
- // Get the root accessible object by querying for the accessible object for the
- // WebView's window.
- COMPtr<IAccessible> rootAccessible;
- if (FAILED(AccessibleObjectFromWindow(webViewWindow, static_cast<DWORD>(OBJID_CLIENT), __uuidof(IAccessible), reinterpret_cast<void**>(&rootAccessible))))
- return 0;
-
- return rootAccessible;
-}
-
-static void CALLBACK logEventProc(HWINEVENTHOOK, DWORD event, HWND hwnd, LONG idObject, LONG idChild, DWORD, DWORD)
-{
- // Get the accessible object for this event.
- COMPtr<IAccessible> parentObject;
-
- VARIANT vChild;
- VariantInit(&vChild);
-
- HRESULT hr = AccessibleObjectFromEvent(hwnd, idObject, idChild, &parentObject, &vChild);
- ASSERT(SUCCEEDED(hr));
-
- // Get the name of the focused element, and log it to stdout.
- BSTR nameBSTR;
- hr = parentObject->get_accName(vChild, &nameBSTR);
- ASSERT(SUCCEEDED(hr));
- wstring name(nameBSTR, ::SysStringLen(nameBSTR));
- SysFreeString(nameBSTR);
-
- switch (event) {
- case EVENT_OBJECT_FOCUS:
- printf("Received focus event for object '%S'.\n", name.c_str());
- break;
-
- case EVENT_OBJECT_VALUECHANGE: {
- BSTR valueBSTR;
- hr = parentObject->get_accValue(vChild, &valueBSTR);
- ASSERT(SUCCEEDED(hr));
- wstring value(valueBSTR, ::SysStringLen(valueBSTR));
- SysFreeString(valueBSTR);
-
- printf("Received value change event for object '%S', value '%S'.\n", name.c_str(), value.c_str());
- break;
- }
-
- case EVENT_SYSTEM_SCROLLINGSTART:
- printf("Received scrolling start event for object '%S'.\n", name.c_str());
- break;
-
- default:
- printf("Received unknown event for object '%S'.\n", name.c_str());
- break;
- }
-
- VariantClear(&vChild);
-}
-
-void AccessibilityController::setLogFocusEvents(bool logFocusEvents)
-{
- if (!!m_focusEventHook == logFocusEvents)
- return;
-
- if (!logFocusEvents) {
- UnhookWinEvent(m_focusEventHook);
- m_focusEventHook = 0;
- return;
- }
-
- // Ensure that accessibility is initialized for the WebView by querying for
- // the root accessible object.
- rootElement();
-
- m_focusEventHook = SetWinEventHook(EVENT_OBJECT_FOCUS, EVENT_OBJECT_FOCUS, GetModuleHandle(0), logEventProc, GetCurrentProcessId(), 0, WINEVENT_INCONTEXT);
-
- ASSERT(m_focusEventHook);
-}
-
-void AccessibilityController::setLogValueChangeEvents(bool logValueChangeEvents)
-{
- if (!!m_valueChangeEventHook == logValueChangeEvents)
- return;
-
- if (!logValueChangeEvents) {
- UnhookWinEvent(m_valueChangeEventHook);
- m_valueChangeEventHook = 0;
- return;
- }
-
- // Ensure that accessibility is initialized for the WebView by querying for
- // the root accessible object.
- rootElement();
-
- m_valueChangeEventHook = SetWinEventHook(EVENT_OBJECT_VALUECHANGE, EVENT_OBJECT_VALUECHANGE, GetModuleHandle(0), logEventProc, GetCurrentProcessId(), 0, WINEVENT_INCONTEXT);
-
- ASSERT(m_valueChangeEventHook);
-}
-
-void AccessibilityController::setLogScrollingStartEvents(bool logScrollingStartEvents)
-{
- if (!!m_scrollingStartEventHook == logScrollingStartEvents)
- return;
-
- if (!logScrollingStartEvents) {
- UnhookWinEvent(m_scrollingStartEventHook);
- m_scrollingStartEventHook = 0;
- return;
- }
-
- // Ensure that accessibility is initialized for the WebView by querying for
- // the root accessible object.
- rootElement();
-
- m_scrollingStartEventHook = SetWinEventHook(EVENT_SYSTEM_SCROLLINGSTART, EVENT_SYSTEM_SCROLLINGSTART, GetModuleHandle(0), logEventProc, GetCurrentProcessId(), 0, WINEVENT_INCONTEXT);
-
- ASSERT(m_scrollingStartEventHook);
-}
-
-static string stringEvent(DWORD event)
-{
- switch(event) {
- case EVENT_OBJECT_VALUECHANGE:
- return "value change event";
- default:
- return "unknown event";
- }
-}
-
-static void CALLBACK notificationListenerProc(HWINEVENTHOOK, DWORD event, HWND hwnd, LONG idObject, LONG idChild, DWORD, DWORD)
-{
- // Get the accessible object for this event.
- COMPtr<IAccessible> parentObject;
-
- VARIANT vChild;
- VariantInit(&vChild);
-
- HRESULT hr = AccessibleObjectFromEvent(hwnd, idObject, idChild, &parentObject, &vChild);
- ASSERT(SUCCEEDED(hr));
-
- COMPtr<IDispatch> childDispatch;
- if (FAILED(parentObject->get_accChild(vChild, &childDispatch))) {
- VariantClear(&vChild);
- return;
- }
-
- COMPtr<IAccessible> childAccessible(Query, childDispatch);
-
- sharedFrameLoadDelegate->accessibilityController()->notificationReceived(childAccessible, stringEvent(event));
-
- VariantClear(&vChild);
-}
-
-static COMPtr<IAccessibleComparable> comparableObject(const COMPtr<IServiceProvider>& serviceProvider)
-{
- COMPtr<IAccessibleComparable> comparable;
- serviceProvider->QueryService(SID_AccessibleComparable, __uuidof(IAccessibleComparable), reinterpret_cast<void**>(&comparable));
- return comparable;
-}
-
-void AccessibilityController::notificationReceived(PlatformUIElement element, const string& eventName)
-{
- for (HashMap<PlatformUIElement, JSObjectRef>::iterator it = m_notificationListeners.begin(); it != m_notificationListeners.end(); ++it) {
- COMPtr<IServiceProvider> thisServiceProvider(Query, it->first);
- if (!thisServiceProvider)
- continue;
-
- COMPtr<IAccessibleComparable> thisComparable = comparableObject(thisServiceProvider);
- if (!thisComparable)
- continue;
-
- COMPtr<IServiceProvider> elementServiceProvider(Query, element);
- if (!elementServiceProvider)
- continue;
-
- COMPtr<IAccessibleComparable> elementComparable = comparableObject(elementServiceProvider);
- if (!elementComparable)
- continue;
-
- BOOL isSame = FALSE;
- thisComparable->isSameObject(elementComparable.get(), &isSame);
- if (!isSame)
- continue;
-
- JSRetainPtr<JSStringRef> jsNotification(Adopt, JSStringCreateWithUTF8CString(eventName.c_str()));
- JSValueRef argument = JSValueMakeString(frame->globalContext(), jsNotification.get());
- JSObjectCallAsFunction(frame->globalContext(), it->second, NULL, 1, &argument, NULL);
- }
-}
-
-void AccessibilityController::addNotificationListener(PlatformUIElement element, JSObjectRef functionCallback)
-{
- if (!m_allEventsHook)
- m_allEventsHook = SetWinEventHook(EVENT_MIN, EVENT_MAX, GetModuleHandle(0), notificationListenerProc, GetCurrentProcessId(), 0, WINEVENT_INCONTEXT);
-
- JSValueProtect(frame->globalContext(), functionCallback);
- m_notificationListeners.add(element, functionCallback);
-}