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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_VIEWS_BUTTON_DROPDOWN_H__
#define CHROME_VIEWS_BUTTON_DROPDOWN_H__
#include "base/task.h"
#include "chrome/views/button.h"
#include "chrome/views/menu.h"
class Timer;
namespace ChromeViews {
////////////////////////////////////////////////////////////////////////////////
//
// ButtonDropDown
//
// A button class that when pressed (and held) or pressed (and drag down) will
// display a menu
//
////////////////////////////////////////////////////////////////////////////////
class ButtonDropDown : public Button {
public:
explicit ButtonDropDown(Menu::Delegate* menu_delegate);
virtual ~ButtonDropDown();
// 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);
private:
// Overridden from Button
virtual bool OnMousePressed(const ChromeViews::MouseEvent& e);
virtual void OnMouseReleased(const ChromeViews::MouseEvent& e,
bool canceled);
virtual bool OnMouseDragged(const ChromeViews::MouseEvent& e);
// Internal function to show the dropdown menu
void ShowDropDownMenu(HWND window);
// Specifies who to delegate populating the menu
Menu::Delegate* menu_delegate_;
// Y position of mouse when left mouse button is pressed
int y_position_on_lbuttondown_;
// A factory for tasks that show the dropdown context menu for the button.
ScopedRunnableMethodFactory<ButtonDropDown> show_menu_factory_;
DISALLOW_EVIL_CONSTRUCTORS(ButtonDropDown);
};
} // namespace
#endif // CHROME_VIEWS_BUTTON_DROPDOWN_H__
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