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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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9
include/capi/cef_render_handler_capi.h
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@ -38,6 +38,7 @@
#define CEF_INCLUDE_CAPI_CEF_RENDER_HANDLER_CAPI_H_
#pragma once
#include "include/capi/cef_accessibility_handler_capi.h"
#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_browser_capi.h"
#include "include/capi/cef_drag_data_capi.h"
@ -57,6 +58,14 @@ typedef struct _cef_render_handler_t {
///
cef_base_ref_counted_t base;
///
// Return the handler for accessibility notifications. If no handler is
// provided the default implementation will be used.
///
struct _cef_accessibility_handler_t* (
CEF_CALLBACK *get_accessibility_handler)(
struct _cef_render_handler_t* self);
///
// Called to retrieve the root window rectangle in screen coordinates. Return
// true (1) if the rectangle was provided.