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

ash/common/frame/header_view.h

-// Copyright 2016 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_HEADER_VIEW_H_
-#define ASH_COMMON_FRAME_HEADER_VIEW_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/common/shell_observer.h"
-#include "ash/shared/immersive_fullscreen_controller_delegate.h"
-#include "base/macros.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/views/view.h"
-
-namespace views {
-class ImageView;
-class Widget;
-}
-
-namespace ash {
-
-class DefaultHeaderPainter;
-class FrameCaptionButtonContainerView;
-
-// View which paints the frame header (title, caption buttons...). It slides off
-// and on screen in immersive fullscreen.
-class ASH_EXPORT HeaderView : public views::View,
-                              public ImmersiveFullscreenControllerDelegate,
-                              public ShellObserver {
- public:
-  // |target_widget| is the widget that the caption buttons act on.
-  // |target_widget| is not necessarily the same as the widget the header is
-  // placed in. For example, in immersive fullscreen this view may be painted in
-  // a widget that slides in and out on top of the main app or browser window.
-  // However, clicking a caption button should act on the target widget.
-  explicit HeaderView(views::Widget* target_widget);
-  ~HeaderView() override;
-
-  void set_is_immersive_delegate(bool value) { is_immersive_delegate_ = value; }
-
-  // Schedules a repaint for the entire title.
-  void SchedulePaintForTitle();
-
-  // Tells the window controls to reset themselves to the normal state.
-  void ResetWindowControls();
-
-  // Returns the amount of the view's pixels which should be on screen.
-  int GetPreferredOnScreenHeight();
-
-  // Returns the view's preferred height.
-  int GetPreferredHeight();
-
-  // Returns the view's minimum width.
-  int GetMinimumWidth() const;
-
-  void UpdateAvatarIcon();
-
-  void SizeConstraintsChanged();
-
-  void SetFrameColors(SkColor active_frame_color, SkColor inactive_frame_color);
-  SkColor GetActiveFrameColor() const;
-  SkColor GetInactiveFrameColor() const;
-
-  // views::View:
-  void Layout() override;
-  void OnPaint(gfx::Canvas* canvas) override;
-  void ChildPreferredSizeChanged(views::View* child) override;
-
-  // ShellObserver:
-  void OnOverviewModeStarting() override;
-  void OnOverviewModeEnded() override;
-  void OnMaximizeModeStarted() override;
-  void OnMaximizeModeEnded() override;
-
-  FrameCaptionButtonContainerView* caption_button_container() {
-    return caption_button_container_;
-  }
-
-  views::View* avatar_icon() const;
-
- private:
-  // ImmersiveFullscreenControllerDelegate:
-  void OnImmersiveRevealStarted() override;
-  void OnImmersiveRevealEnded() override;
-  void OnImmersiveFullscreenExited() override;
-  void SetVisibleFraction(double visible_fraction) override;
-  std::vector<gfx::Rect> GetVisibleBoundsInScreen() const override;
-
-  // The widget that the caption buttons act on.
-  views::Widget* target_widget_;
-
-  // Helper for painting the header.
-  std::unique_ptr<DefaultHeaderPainter> header_painter_;
-
-  views::ImageView* avatar_icon_;
-
-  // View which contains the window caption buttons.
-  FrameCaptionButtonContainerView* caption_button_container_;
-
-  // The fraction of the header's height which is visible while in fullscreen.
-  // This value is meaningless when not in fullscreen.
-  double fullscreen_visible_fraction_;
-
-  // Has this instance been set as the ImmersiveFullscreenControllerDelegate?
-  bool is_immersive_delegate_ = true;
-
-  bool did_layout_ = false;
-
-  DISALLOW_COPY_AND_ASSIGN(HeaderView);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_FRAME_HEADER_VIEW_H_