CefAccessibilityHandler

Header: cef_accessibility_handler.h
Category: Browser Handlers

Overview

User-implemented handler interfaces returned from CefClient and registered with CefBrowserHost.

CefAccessibilityHandler

Source File: include/cef_accessibility_handler.h

Process / Thread Context: Browser Process / UI Thread (class comment: "The

Purpose: User-implemented interface to receive accessibility notifications

Usage Example

#include "include/cef_accessibility_handler.h"
#include "include/cef_render_handler.h"
#include "include/cef_client.h"

class MyAccessibilityHandler : public CefAccessibilityHandler {
 public:
  void OnAccessibilityTreeChange(CefRefPtr<CefValue> value) override {
    // Inspect |value| (typically a dictionary) and push into the
    // platform's accessibility API (UIAutomation / NSAccessibility / AT-SPI).
  }

  void OnAccessibilityLocationChange(CefRefPtr<CefValue> value) override {
    // Update on-screen bounds for accessibility nodes only.
  }

  IMPLEMENT_REFCOUNTING(MyAccessibilityHandler);
};

// Returned from your CefRenderHandler (not directly from CefClient):
class MyRenderHandler : public CefRenderHandler {
  // ... OnPaint, GetViewRect, etc. ...
  CefRefPtr<CefAccessibilityHandler> GetAccessibilityHandler() override {
    return new MyAccessibilityHandler();
  }
};

class MyClient : public CefClient {
 public:
  CefRefPtr<CefRenderHandler> GetRenderHandler() override {
    return new MyRenderHandler();
  }
};