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// Copyright (c) 2012 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 UI_VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_WRAPPER_H_
#define UI_VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_WRAPPER_H_
#include "ui/gfx/native_widget_types.h"
#include "ui/views/views_export.h"
namespace gfx {
class Size;
}
namespace ui {
class KeyEvent;
}
namespace views {
class Combobox;
class View;
class VIEWS_EXPORT NativeComboboxWrapper {
public:
// Updates the combobox's content from its model.
virtual void UpdateFromModel() = 0;
// Updates the selected index from the associated combobox.
virtual void UpdateSelectedIndex() = 0;
// Updates the enabled state of the combobox from the associated view.
virtual void UpdateEnabled() = 0;
// Returns the selected index.
virtual int GetSelectedIndex() const = 0;
// Returns true if the combobox dropdown is open.
virtual bool IsDropdownOpen() const = 0;
// Returns the preferred size of the combobox.
virtual gfx::Size GetPreferredSize() = 0;
// Retrieves the view that hosts the native control.
virtual View* GetView() = 0;
// Sets the focus to the button.
virtual void SetFocus() = 0;
// Invoked when a key is pressed/release on combobox. Subclasser should
// return true if the event has been processed and false otherwise.
// See also View::OnKeyPressed/OnKeyReleased.
virtual bool HandleKeyPressed(const ui::KeyEvent& e) = 0;
virtual bool HandleKeyReleased(const ui::KeyEvent& e) = 0;
// Invoked when focus is being moved from or to the combobox.
// See also View::OnFocus/OnBlur.
virtual void HandleFocus() = 0;
virtual void HandleBlur() = 0;
// Returns a handle to the underlying native view for testing.
virtual gfx::NativeView GetTestingHandle() const = 0;
static NativeComboboxWrapper* CreateWrapper(Combobox* combobox);
protected:
virtual ~NativeComboboxWrapper() {}
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_WRAPPER_H_
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