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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 VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
#define VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
#pragma once
#include <string>
#include "views/view.h"
class ComboboxModel;
namespace views {
class NativeComboboxWrapper;
// A non-editable combo-box.
class Combobox : public View {
public:
// The combobox's class name.
static const char kViewClassName[];
class Listener {
public:
// This is invoked once the selected item changed.
virtual void ItemChanged(Combobox* combo_box,
int prev_index,
int new_index) = 0;
};
// |model| is not owned by the combo box.
explicit Combobox(ComboboxModel* model);
virtual ~Combobox();
// Register |listener| for item change events.
void set_listener(Listener* listener) {
listener_ = listener;
}
// Inform the combo box that its model changed.
void ModelChanged();
// Gets/Sets the selected item.
int selected_item() const { return selected_item_; }
void SetSelectedItem(int index);
// Called when the combo box's selection is changed by the user.
void SelectionChanged();
// Accessor for |model_|.
ComboboxModel* model() const { return model_; }
// Overridden from View:
virtual gfx::Size GetPreferredSize();
virtual void Layout();
virtual void SetEnabled(bool enabled);
virtual bool SkipDefaultKeyEventProcessing(const KeyEvent& e);
virtual void PaintFocusBorder(gfx::Canvas* canvas);
virtual bool GetAccessibleRole(AccessibilityTypes::Role* role);
virtual bool GetAccessibleValue(std::wstring* value);
protected:
virtual void Focus();
virtual void ViewHierarchyChanged(bool is_add, View* parent,
View* child);
virtual std::string GetClassName() const;
// The object that actually implements the native combobox.
NativeComboboxWrapper* native_wrapper_;
private:
// Our model.
ComboboxModel* model_;
// Item change listener.
Listener* listener_;
// The current selection.
int selected_item_;
DISALLOW_COPY_AND_ASSIGN(Combobox);
};
} // namespace views
#endif // VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
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