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// Copyright (c) 2010 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 CHROME_BROWSER_GTK_ACCESSIBLE_WIDGET_HELPER_GTK_H_
#define CHROME_BROWSER_GTK_ACCESSIBLE_WIDGET_HELPER_GTK_H_
#include <gtk/gtk.h>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/singleton.h"
#include "chrome/browser/gtk/accessibility_event_router_gtk.h"
#include "chrome/common/accessibility_events.h"
class Profile;
// Helper class that helps to manage the accessibility information for all
// of the widgets in a container. Create an instance of this class for
// each container GtkWidget (like a dialog) that should send accessibility
// events for all of its descendants.
//
// Most controls have default behavior for accessibility; when this needs
// to be augmented, call one of the methods below to ignore a particular
// widget or change its details.
//
// All of the information managed by this class is registered with the
// (global) AccessibilityEventRouter and unregistered when this object is
// destroyed.
class AccessibleWidgetHelper {
public:
// Contruct an AccessibleWidgetHelper that makes the given root widget
// accessible for the lifetime of this object, sending accessibility
// notifications to the given profile.
AccessibleWidgetHelper(GtkWidget* root_widget, Profile* profile);
virtual ~AccessibleWidgetHelper();
// Do not send accessibility events for this widget
void IgnoreWidget(GtkWidget* widget);
// Use the following string as the name of this widget, instead of the
// gtk label associated with the widget.
void SetWidgetName(GtkWidget* widget, std::string name);
// Use the following string as the name of this widget, instead of the
// gtk label associated with the widget.
void SetWidgetName(GtkWidget* widget, int string_id);
private:
AccessibilityEventRouter* accessibility_event_router_;
GtkWidget* root_widget_;
std::vector<GtkWidget*> managed_widgets_;
};
#endif // CHROME_BROWSER_GTK_ACCESSIBLE_WIDGET_HELPER_GTK_H_
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