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// Copyright (c) 2006-2008 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_BUTTON_MENU_BUTTON_H_
#define VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_
#include <windows.h>
#include "app/gfx/font.h"
#include "base/time.h"
#include "views/background.h"
#include "views/controls/button/text_button.h"
namespace views {
class MouseEvent;
class ViewMenuDelegate;
////////////////////////////////////////////////////////////////////////////////
//
// MenuButton
//
// A button that shows a menu when the left mouse button is pushed
//
////////////////////////////////////////////////////////////////////////////////
class MenuButton : public TextButton {
public:
//
// Create a Button
MenuButton(ButtonListener* listener,
const std::wstring& text,
ViewMenuDelegate* menu_delegate,
bool show_menu_marker);
virtual ~MenuButton();
void set_menu_delegate(ViewMenuDelegate* delegate) {
menu_delegate_ = delegate;
}
// Activate the button (called when the button is pressed).
virtual bool Activate();
// Overridden to take into account the potential use of a drop marker.
virtual gfx::Size GetPreferredSize();
virtual void Paint(gfx::Canvas* canvas, bool for_drag);
// These methods are overriden to implement a simple push button
// behavior
virtual bool OnMousePressed(const MouseEvent& e);
void OnMouseReleased(const MouseEvent& e, bool canceled);
virtual bool OnKeyReleased(const KeyEvent& e);
virtual void OnMouseExited(const MouseEvent& event);
// Accessibility accessors, overridden from View.
virtual bool GetAccessibleDefaultAction(std::wstring* action);
virtual bool GetAccessibleRole(AccessibilityTypes::Role* role);
virtual bool GetAccessibleState(AccessibilityTypes::State* state);
protected:
// true if the menu is currently visible.
bool menu_visible_;
private:
// Compute the maximum X coordinate for the current screen. MenuButtons
// use this to make sure a menu is never shown off screen.
int GetMaximumScreenXCoordinate();
DISALLOW_EVIL_CONSTRUCTORS(MenuButton);
// We use a time object in order to keep track of when the menu was closed.
// The time is used for simulating menu behavior for the menu button; that
// is, if the menu is shown and the button is pressed, we need to close the
// menu. There is no clean way to get the second click event because the
// menu is displayed using a modal loop and, unlike regular menus in Windows,
// the button is not part of the displayed menu.
base::Time menu_closed_time_;
// The associated menu's resource identifier.
ViewMenuDelegate* menu_delegate_;
// Whether or not we're showing a drop marker.
bool show_menu_marker_;
friend class TextButtonBackground;
};
} // namespace views
#endif // VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_
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