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// Copyright (c) 2011 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_COMBOBOX_H_
#define UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
#pragma once
#include <string>
#include "ui/gfx/native_widget_types.h"
#include "ui/views/controls/combobox/native_combobox_wrapper.h"
#include "ui/views/view.h"
namespace ui {
class ComboboxModel;
}
namespace views {
class ComboboxListener;
// A non-editable combo-box (aka a drop-down list)
class VIEWS_EXPORT Combobox : public View {
public:
// The combobox's class name.
static const char kViewClassName[];
// |model| is not owned by the combo box.
explicit Combobox(ui::ComboboxModel* model);
virtual ~Combobox();
// Register |listener| for item change events.
void set_listener(ComboboxListener* 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_|.
ui::ComboboxModel* model() const { return model_; }
// Set the accessible name of the combo box.
void SetAccessibleName(const string16& name);
// Provided only for testing:
gfx::NativeView GetTestingHandle() const {
return native_wrapper_ ? native_wrapper_->GetTestingHandle() : NULL;
}
NativeComboboxWrapper* GetNativeWrapperForTesting() const {
return native_wrapper_;
}
// Overridden from View:
virtual gfx::Size GetPreferredSize() OVERRIDE;
virtual void Layout() OVERRIDE;
virtual void OnEnabledChanged() OVERRIDE;
virtual bool SkipDefaultKeyEventProcessing(const KeyEvent& e) OVERRIDE;
virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
virtual bool OnKeyPressed(const views::KeyEvent& e) OVERRIDE;
virtual bool OnKeyReleased(const views::KeyEvent& e) OVERRIDE;
virtual void OnFocus() OVERRIDE;
virtual void OnBlur() OVERRIDE;
virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
protected:
// Overridden from View:
virtual void ViewHierarchyChanged(bool is_add,
View* parent,
View* child) OVERRIDE;
virtual std::string GetClassName() const OVERRIDE;
// The object that actually implements the native combobox.
NativeComboboxWrapper* native_wrapper_;
private:
// Our model.
ui::ComboboxModel* model_;
// The combobox's listener. Notified when the selected item change.
ComboboxListener* listener_;
// The current selection.
int selected_item_;
// The accessible name of the text field.
string16 accessible_name_;
DISALLOW_COPY_AND_ASSIGN(Combobox);
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
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