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Implement accessibility enhancements (issue #1217)

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- Add new CefBrowserHost::SetAccessibilityState method for toggling
  accessibility state when readers are detected by the client.
- Add new CefAccessibilityHandler interface for the delivery of
  accessibility notifications to windowless (OSR) clients.
- Fix delivery of CefFocusHandler callbacks to windowless clients.
- cefclient: Add example windowless accessibility implementation on Windows and macOS.
- cefclient: Automatically detect screen readers on Windows and macOS.
This commit is contained in:
Nishant Kaushik
2017-05-12 18:28:25 +00:00
committed by Marshall Greenblatt
parent 64fcfa6068
commit 816f700d3e
51 changed files with 3476 additions and 8 deletions
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3
libcef_dll/wrapper/libcef_dll_wrapper.cc
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@ -39,6 +39,7 @@
#include "include/cef_web_plugin.h"
#include "include/capi/cef_web_plugin_capi.h"
#include "include/cef_version.h"
#include "libcef_dll/cpptoc/accessibility_handler_cpptoc.h"
#include "libcef_dll/cpptoc/app_cpptoc.h"
#include "libcef_dll/cpptoc/browser_process_handler_cpptoc.h"
#include "libcef_dll/cpptoc/views/browser_view_delegate_cpptoc.h"
@ -229,6 +230,8 @@ CEF_GLOBAL void CefShutdown() {
#if DCHECK_IS_ON()
// Check that all wrapper objects have been destroyed
DCHECK(base::AtomicRefCountIsZero(
&CefAccessibilityHandlerCppToC::DebugObjCt));
DCHECK(base::AtomicRefCountIsZero(&CefAuthCallbackCToCpp::DebugObjCt));
DCHECK(base::AtomicRefCountIsZero(
&CefBeforeDownloadCallbackCToCpp::DebugObjCt));