cef/tests/cefclient/browser/osr_accessibility_helper.h

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1.7 KiB
C++

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