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// Copyright (c) 2010 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_BUTTON_H_
#define VIEWS_CONTROLS_BUTTON_BUTTON_H_
#pragma once
#include "views/view.h"
namespace views {
class Button;
class Event;
// An interface implemented by an object to let it know that a button was
// pressed.
class ButtonListener {
public:
virtual void ButtonPressed(Button* sender, const views::Event& event) = 0;
};
// A View representing a button. Depending on the specific type, the button
// could be implemented by a native control or custom rendered.
class Button : public View {
public:
virtual ~Button();
void SetTooltipText(const std::wstring& tooltip_text);
int tag() const { return tag_; }
void set_tag(int tag) { tag_ = tag; }
int mouse_event_flags() const { return mouse_event_flags_; }
void SetAccessibleKeyboardShortcut(const std::wstring& shortcut);
// Overridden from View:
virtual bool GetTooltipText(const gfx::Point& p, std::wstring* tooltip);
virtual bool GetAccessibleKeyboardShortcut(std::wstring* shortcut);
virtual bool GetAccessibleRole(AccessibilityTypes::Role* role);
protected:
// Construct the Button with a Listener. The listener can be NULL. This can be
// true of buttons that don't have a listener - e.g. menubuttons where there's
// no default action and checkboxes.
explicit Button(ButtonListener* listener);
// Cause the button to notify the listener that a click occurred.
virtual void NotifyClick(const views::Event& event);
// The button's listener. Notified when clicked.
ButtonListener* listener_;
private:
// The text shown in a tooltip.
std::wstring tooltip_text_;
// Accessibility data.
std::wstring accessible_shortcut_;
// The id tag associated with this button. Used to disambiguate buttons in
// the ButtonListener implementation.
int tag_;
// Event flags present when the button was clicked.
int mouse_event_flags_;
DISALLOW_COPY_AND_ASSIGN(Button);
};
} // namespace views
#endif // VIEWS_CONTROLS_BUTTON_BUTTON_H_
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