mirror of
https://bitbucket.org/chromiumembedded/cef
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816f700d3e
- 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.
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// Copyright 2017 The Chromium Embedded Framework Authors. Portions copyright
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// 2013 The Chromium Authors. All rights reserved. Use of this source code is
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// governed by a BSD-style license that can be found in the LICENSE file.
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#ifndef CEF_TESTS_CEFCLIENT_BROWSER_OSR_ACCESSIBILITY_HELPER_H_
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#define CEF_TESTS_CEFCLIENT_BROWSER_OSR_ACCESSIBILITY_HELPER_H_
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#include <map>
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#include "include/cef_browser.h"
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namespace client {
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class OsrAXNode;
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// Helper class that abstracts Renderer Accessibility tree and provides a
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// uniform interface to be consumed by IAccessible interface on Windows and
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// NSAccessibility implementation on Mac in CefClient.
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class OsrAccessibilityHelper {
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public:
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OsrAccessibilityHelper(CefRefPtr<CefValue> value,
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CefRefPtr<CefBrowser> browser);
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void UpdateAccessibilityTree(CefRefPtr<CefValue> value);
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OsrAXNode* GetRootNode() const {
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return GetNode(root_node_id_);
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}
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OsrAXNode* GetFocusedNode() const {
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return GetNode(focused_node_id_);
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}
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CefWindowHandle GetWindowHandle() const {
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return browser_->GetHost()->GetWindowHandle();
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}
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CefRefPtr<CefBrowser> GetBrowser() const {
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return browser_;
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};
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OsrAXNode* GetNode(int nodeId) const;
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private:
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OsrAXNode* CreateNode(OsrAXNode* parent, CefRefPtr<CefDictionaryValue> value);
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void Reset();
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void UpdateLayout(CefRefPtr<CefDictionaryValue> update);
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void UpdateFocusedNode(CefRefPtr<CefDictionaryValue> update);
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// Destroy the node and remove from Map
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void DestroyNode(OsrAXNode* node);
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int root_node_id_;
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int focused_node_id_;
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CefRefPtr<CefBrowser> browser_;
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std::map<int, OsrAXNode*> accessibility_node_map_;
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};
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} // namespace client
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#endif // CEF_TESTS_CEFCLIENT_BROWSER_OSR_ACCESSIBILITY_HELPER_H_
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