chromeos: Move files in //ash/common to //ash, part 2

ash/common/frame/caption_buttons/frame_size_button.h

-// Copyright 2014 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 ASH_COMMON_FRAME_CAPTION_BUTTONS_FRAME_SIZE_BUTTON_H_
-#define ASH_COMMON_FRAME_CAPTION_BUTTONS_FRAME_SIZE_BUTTON_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/common/frame/caption_buttons/frame_caption_button.h"
-#include "ash/common/frame/caption_buttons/frame_size_button_delegate.h"
-#include "base/macros.h"
-#include "base/timer/timer.h"
-
-namespace views {
-class Widget;
-}
-
-namespace ash {
-class FrameSizeButtonDelegate;
-class PhantomWindowController;
-
-// The maximize/restore button.
-// When the mouse is pressed over the size button or the size button is touched:
-// - The minimize and close buttons are set to snap left and snap right
-//   respectively.
-// - The size button stays pressed while the mouse is over the buttons to snap
-//   left and to snap right. The button underneath the mouse is hovered.
-// When the drag terminates, the action for the button underneath the mouse
-// is executed. For the sake of simplicity, the size button is the event
-// handler for a click starting on the size button and the entire drag.
-class ASH_EXPORT FrameSizeButton : public FrameCaptionButton {
- public:
-  FrameSizeButton(views::ButtonListener* listener,
-                  views::Widget* frame,
-                  FrameSizeButtonDelegate* delegate);
-
-  ~FrameSizeButton() override;
-
-  // views::CustomButton overrides:
-  bool OnMousePressed(const ui::MouseEvent& event) override;
-  bool OnMouseDragged(const ui::MouseEvent& event) override;
-  void OnMouseReleased(const ui::MouseEvent& event) override;
-  void OnMouseCaptureLost() override;
-  void OnMouseMoved(const ui::MouseEvent& event) override;
-  void OnGestureEvent(ui::GestureEvent* event) override;
-
-  void set_delay_to_set_buttons_to_snap_mode(int delay_ms) {
-    set_buttons_to_snap_mode_delay_ms_ = delay_ms;
-  }
-
- private:
-  enum SnapType { SNAP_LEFT, SNAP_RIGHT, SNAP_NONE };
-
-  // Starts |set_buttons_to_snap_mode_timer_|.
-  void StartSetButtonsToSnapModeTimer(const ui::LocatedEvent& event);
-
-  // Animates the buttons adjacent to the size button to snap left and right.
-  void AnimateButtonsToSnapMode();
-
-  // Sets the buttons adjacent to the size button to snap left and right.
-  // Passing in ANIMATE_NO progresses the animation (if any) to the end.
-  void SetButtonsToSnapMode(FrameSizeButtonDelegate::Animate animate);
-
-  // Updates |snap_type_|, whether the size button is pressed and whether any
-  // other buttons are hovered.
-  void UpdateSnapType(const ui::LocatedEvent& event);
-
-  // Returns the button which should be hovered (if any) while in "snap mode"
-  // for |event_location_in_screen|.
-  const FrameCaptionButton* GetButtonToHover(
-      const gfx::Point& event_location_in_screen) const;
-
-  // Snaps |frame_| according to |snap_type_|. Returns true if |frame_| was
-  // snapped.
-  bool CommitSnap(const ui::LocatedEvent& event);
-
-  // Sets the buttons adjacent to the size button to minimize and close again.
-  // Clears any state set while snapping was enabled. |animate| indicates
-  // whether the buttons should animate back to their original icons.
-  void SetButtonsToNormalMode(FrameSizeButtonDelegate::Animate animate);
-
-  // Widget that the size button acts on.
-  views::Widget* frame_;
-
-  // Not owned.
-  FrameSizeButtonDelegate* delegate_;
-
-  // Location of the event which started |set_buttons_to_snap_mode_timer_| in
-  // view coordinates.
-  gfx::Point set_buttons_to_snap_mode_timer_event_location_;
-
-  // The delay between the user pressing the size button and the buttons
-  // adjacent to the size button morphing into buttons for snapping left and
-  // right.
-  int set_buttons_to_snap_mode_delay_ms_;
-
-  base::OneShotTimer set_buttons_to_snap_mode_timer_;
-
-  // Whether the buttons adjacent to the size button snap the window left and
-  // right.
-  bool in_snap_mode_;
-
-  // The action to execute when the drag/click is ended. If
-  // |snap_type_| == SNAP_NONE, the size button's default action is run when the
-  // drag/click is ended.
-  SnapType snap_type_;
-
-  // Displays a preview of how the window's bounds will change as a result of
-  // snapping the window left or right. The preview is only visible if the snap
-  // left or snap right button is pressed.
-  std::unique_ptr<PhantomWindowController> phantom_window_controller_;
-
-  DISALLOW_COPY_AND_ASSIGN(FrameSizeButton);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_FRAME_CAPTION_BUTTONS_FRAME_SIZE_BUTTON_H_