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// Copyright (c) 2006-2008 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 WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_H_
#define WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_H_
#include "webkit/glue/webaccessibility.h"
namespace WebKit {
class WebAccessibilityObject;
class WebView;
}
////////////////////////////////////////////////////////////////////////////////
//
// WebAccessibilityManager
//
// Responds to incoming accessibility requests from the browser side. Retrieves
// the requested information from the active AccessibilityObject, through the
// GlueAccessibilityObject.
////////////////////////////////////////////////////////////////////////////////
namespace webkit_glue {
class WebAccessibilityManager {
public:
WebAccessibilityManager() {}
virtual ~WebAccessibilityManager() {}
// Creates a new instance of WebAccessibilityManager.
static WebAccessibilityManager* Create();
// Retrieves the accessibility information as requested in in_params, by
// calling into WebKit's AccessibilityObject. Maintains a hashmap of the
// currently active (browser side ref-count non-zero) instances. Returns true
// if successful, false otherwise.
virtual bool GetAccObjInfo(WebKit::WebView* view,
const WebAccessibility::InParams& in_params,
WebAccessibility::OutParams* out_params) = 0;
// Erases the entry identified by the [acc_obj_id] from the hash maps. If
// [clear_all] is true, all entries are erased. Returns true if successful,
// false otherwise.
virtual bool ClearAccObjMap(int acc_obj_id, bool clear_all) = 0;
// Retrieves the id of the input AccessibilityObject, due to a focus event.
// Returns an id greater than or equal to 0 if successful, -1 otherwise.
virtual int FocusAccObj(const WebKit::WebAccessibilityObject& object) = 0;
private:
// Retrieves the RenderObject associated with this WebView, and uses it to
// initialize the root of the GlueAccessibilityObject tree with the
// associated accessibility information. Returns true if successful, false
// otherwise.
virtual bool InitAccObjRoot(WebKit::WebView* view) = 0;
DISALLOW_COPY_AND_ASSIGN(WebAccessibilityManager);
};
} // namespace webkit_glue
#endif // WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_H_
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