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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 VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_VIEWS_H_
#define VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_VIEWS_H_
#pragma once
#include "views/controls/combobox/native_combobox_wrapper.h"
#include "views/controls/menu/menu_delegate.h"
#include "views/view.h"
namespace gfx {
class Canvas;
class Font;
}
namespace views {
class KeyEvent;
class FocusableBorder;
class MenuRunner;
// A views/skia only implementation of NativeComboboxWrapper.
// No platform specific code is used.
class NativeComboboxViews : public views::View,
public NativeComboboxWrapper,
public views::MenuDelegate {
public:
explicit NativeComboboxViews(Combobox* parent);
virtual ~NativeComboboxViews();
// views::View overrides:
virtual bool OnMousePressed(const views::MouseEvent& mouse_event) OVERRIDE;
virtual bool OnMouseDragged(const views::MouseEvent& mouse_event) OVERRIDE;
virtual bool OnKeyPressed(const views::KeyEvent& key_event) OVERRIDE;
virtual bool OnKeyReleased(const views::KeyEvent& key_event) OVERRIDE;
virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
virtual void OnFocus() OVERRIDE;
virtual void OnBlur() OVERRIDE;
// NativeComboboxWrapper overrides:
virtual void UpdateFromModel() OVERRIDE;
virtual void UpdateSelectedItem() OVERRIDE;
virtual void UpdateEnabled() OVERRIDE;
virtual int GetSelectedItem() const OVERRIDE;
virtual bool IsDropdownOpen() const OVERRIDE;
virtual gfx::Size GetPreferredSize() OVERRIDE;
virtual View* GetView() OVERRIDE;
virtual void SetFocus() OVERRIDE;
virtual bool HandleKeyPressed(const views::KeyEvent& event) OVERRIDE;
virtual bool HandleKeyReleased(const views::KeyEvent& event) OVERRIDE;
virtual void HandleFocus() OVERRIDE;
virtual void HandleBlur() OVERRIDE;
virtual gfx::NativeView GetTestingHandle() const OVERRIDE;
// MenuDelegate overrides:
virtual bool IsItemChecked(int id) const OVERRIDE;
virtual bool IsCommandEnabled(int id) const OVERRIDE;
virtual void ExecuteCommand(int id) OVERRIDE;
virtual bool GetAccelerator(int id, views::Accelerator* accelerator) OVERRIDE;
// class name of internal
static const char kViewClassName[];
private:
// Returns the Combobox's font.
const gfx::Font& GetFont() const;
// Draw an arrow
void DrawArrow(gfx::Canvas* canvas,
int tip_x, int tip_y, int shift_x, int shift_y) const;
// Draw the selected value of the drop down list
void PaintText(gfx::Canvas* canvas);
// Show the drop down list
void ShowDropDownMenu();
// The parent combobox, the owner of this object.
Combobox* combobox_;
// The reference to the border class. The object is owned by View::border_.
FocusableBorder* text_border_;
// Responsible for showing the context menu.
scoped_ptr<MenuRunner> dropdown_list_menu_runner_;
// Is the drop down list showing
bool dropdown_open_;
// Index in the model of the selected item: -1 => none
int selected_item_;
// The maximum dimensions of the content in the dropdown
int content_width_;
int content_height_;
DISALLOW_COPY_AND_ASSIGN(NativeComboboxViews);
};
} // namespace views
#endif // VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_VIEWS_H_
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