It is time.

ui/views/controls/button/custom_button.h

-// Copyright (c) 2012 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 UI_VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
-#define UI_VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "ui/events/event_constants.h"
-#include "ui/gfx/animation/animation_delegate.h"
-#include "ui/views/controls/button/button.h"
-
-namespace gfx {
-class ThrobAnimation;
-}
-
-namespace views {
-
-class CustomButtonStateChangedDelegate;
-
-// A button with custom rendering. The base of ImageButton and LabelButton.
-// Note that this type of button is not focusable by default and will not be
-// part of the focus chain.  Call SetFocusable(true) to make it part of the
-// focus chain.
-class VIEWS_EXPORT CustomButton : public Button,
-                                  public gfx::AnimationDelegate {
- public:
-  // The menu button's class name.
-  static const char kViewClassName[];
-
-  static const CustomButton* AsCustomButton(const views::View* view);
-  static CustomButton* AsCustomButton(views::View* view);
-
-  virtual ~CustomButton();
-
-  // Get/sets the current display state of the button.
-  ButtonState state() const { return state_; }
-  void SetState(ButtonState state);
-
-  // Starts throbbing. See HoverAnimation for a description of cycles_til_stop.
-  void StartThrobbing(int cycles_til_stop);
-
-  // Stops throbbing immediately.
-  void StopThrobbing();
-
-  // Set how long the hover animation will last for.
-  void SetAnimationDuration(int duration);
-
-  void set_triggerable_event_flags(int triggerable_event_flags) {
-    triggerable_event_flags_ = triggerable_event_flags;
-  }
-  int triggerable_event_flags() const { return triggerable_event_flags_; }
-
-  // Sets whether |RequestFocus| should be invoked on a mouse press. The default
-  // is true.
-  void set_request_focus_on_press(bool value) {
-    request_focus_on_press_ = value;
-  }
-  bool request_focus_on_press() const { return request_focus_on_press_; }
-
-  // See description above field.
-  void set_animate_on_state_change(bool value) {
-    animate_on_state_change_ = value;
-  }
-
-  void SetHotTracked(bool is_hot_tracked);
-  bool IsHotTracked() const;
-
-  // Overridden from View:
-  virtual void OnEnabledChanged() override;
-  virtual const char* GetClassName() const override;
-  virtual bool OnMousePressed(const ui::MouseEvent& event) override;
-  virtual bool OnMouseDragged(const ui::MouseEvent& event) override;
-  virtual void OnMouseReleased(const ui::MouseEvent& event) override;
-  virtual void OnMouseCaptureLost() override;
-  virtual void OnMouseEntered(const ui::MouseEvent& event) override;
-  virtual void OnMouseExited(const ui::MouseEvent& event) override;
-  virtual void OnMouseMoved(const ui::MouseEvent& event) override;
-  virtual bool OnKeyPressed(const ui::KeyEvent& event) override;
-  virtual bool OnKeyReleased(const ui::KeyEvent& event) override;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
-  virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
-  virtual void ShowContextMenu(const gfx::Point& p,
-                               ui::MenuSourceType source_type) override;
-  virtual void OnDragDone() override;
-  virtual void GetAccessibleState(ui::AXViewState* state) override;
-  virtual void VisibilityChanged(View* starting_from, bool is_visible) override;
-
-  // Overridden from gfx::AnimationDelegate:
-  virtual void AnimationProgressed(const gfx::Animation* animation) override;
-
-  // Takes ownership of the delegate.
-  void set_state_changed_delegate(CustomButtonStateChangedDelegate* delegate) {
-    state_changed_delegate_.reset(delegate);
-  }
-
- protected:
-  // Construct the Button with a Listener. See comment for Button's ctor.
-  explicit CustomButton(ButtonListener* listener);
-
-  // Invoked from SetState() when SetState() is passed a value that differs from
-  // the current state. CustomButton's implementation of StateChanged() does
-  // nothing; this method is provided for subclasses that wish to do something
-  // on state changes.
-  virtual void StateChanged();
-
-  // Returns true if the event is one that can trigger notifying the listener.
-  // This implementation returns true if the left mouse button is down.
-  virtual bool IsTriggerableEvent(const ui::Event& event);
-
-  // Returns true if the button should become pressed when the user
-  // holds the mouse down over the button. For this implementation,
-  // we simply return IsTriggerableEvent(event).
-  virtual bool ShouldEnterPushedState(const ui::Event& event);
-
-  // Overridden from View:
-  virtual void ViewHierarchyChanged(
-      const ViewHierarchyChangedDetails& details) override;
-  virtual void OnBlur() override;
-
-  // The button state (defined in implementation)
-  ButtonState state_;
-
-  // Hover animation.
-  scoped_ptr<gfx::ThrobAnimation> hover_animation_;
-
- private:
-  // Should we animate when the state changes? Defaults to true.
-  bool animate_on_state_change_;
-
-  // Is the hover animation running because StartThrob was invoked?
-  bool is_throbbing_;
-
-  // Mouse event flags which can trigger button actions.
-  int triggerable_event_flags_;
-
-  // See description above setter.
-  bool request_focus_on_press_;
-
-  scoped_ptr<CustomButtonStateChangedDelegate> state_changed_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(CustomButton);
-};
-
-// Delegate for actions taken on state changes by CustomButton.
-class VIEWS_EXPORT CustomButtonStateChangedDelegate {
-public:
-  virtual ~CustomButtonStateChangedDelegate() {}
-  virtual void StateChanged(Button::ButtonState state) = 0;
-
-protected:
-  CustomButtonStateChangedDelegate() {}
-
-private:
-  DISALLOW_COPY_AND_ASSIGN(CustomButtonStateChangedDelegate);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_