ash/frame/caption_buttons/frame_size_button_delegate.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_FRAME_CAPTION_BUTTONS_FRAME_SIZE_BUTTON_DELEGATE_H_
   6 #define ASH_FRAME_CAPTION_BUTTONS_FRAME_SIZE_BUTTON_DELEGATE_H_
   7
   8 #include "ash/ash_export.h"
   9 #include "ash/frame/caption_buttons/caption_button_types.h"
  10
  11 namespace gfx {
  12 class Insets;
  13 class Point;
  14 class Vector2d;
  15 }
  16
  17 namespace ash {
  18 class FrameCaptionButton;
  19
  20 // Delegate interface for FrameSizeButton.
  21 class ASH_EXPORT FrameSizeButtonDelegate {
  22  public:
  23   enum Animate {
  24     ANIMATE_YES,
  25     ANIMATE_NO
  26   };
  27
  28   // Returns whether the minimize button is visible.
  29   virtual bool IsMinimizeButtonVisible() const = 0;
  30
  31   // Reset the caption button views::Button::ButtonState back to normal. If
  32   // |animate| is ANIMATE_YES, the buttons will crossfade back to their
  33   // original icons.
  34   virtual void SetButtonsToNormal(Animate animate) = 0;
  35
  36   // Sets the minimize and close button icons. The buttons will crossfade to
  37   // their new icons if |animate| is ANIMATE_YES.
  38   virtual void SetButtonIcons(CaptionButtonIcon minimize_button_icon,
  39                               CaptionButtonIcon close_button_icon,
  40                               Animate animate) = 0;
  41
  42   // Returns the button closest to |position_in_screen|.
  43   virtual const FrameCaptionButton* GetButtonClosestTo(
  44       const gfx::Point& position_in_screen) const = 0;
  45
  46   // Sets |to_hover| and |to_pressed| to STATE_HOVERED and STATE_PRESSED
  47   // respectively. All other buttons are to set to STATE_NORMAL.
  48   virtual void SetHoveredAndPressedButtons(
  49       const FrameCaptionButton* to_hover,
  50       const FrameCaptionButton* to_press) = 0;
  51
  52  protected:
  53   virtual ~FrameSizeButtonDelegate() {}
  54 };
  55
  56 }  // namespace ash
  57
  58 #endif  // ASH_FRAME_CAPTION_BUTTONS_FRAME_SIZE_BUTTON_DELEGATE_H_