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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 CHROME_VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_
+#define CHROME_VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_
+
+#include <windows.h>
+
+#include "chrome/common/gfx/chrome_font.h"
+#include "chrome/views/background.h"
+#include "chrome/views/controls/button/text_button.h"
+#include "base/time.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();
+
+ // 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(ChromeCanvas* 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);
+
+ // Returns the MSAA default action of the current view. The string returned
+ // describes the default action that will occur when executing
+ // IAccessible::DoDefaultAction.
+ bool GetAccessibleDefaultAction(std::wstring* action);
+
+ // Returns the MSAA role of the current view. The role is what assistive
+ // technologies (ATs) use to determine what behavior to expect from a given
+ // control.
+ bool GetAccessibleRole(VARIANT* role);
+
+ // Returns the MSAA state of the current view. Sets the input VARIANT
+ // appropriately, and returns true if a change was performed successfully.
+ // Overriden from View.
+ virtual bool GetAccessibleState(VARIANT* 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 // CHROME_VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_