Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/ui/views/panels/panel_view.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 CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_
-#define CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "build/build_config.h"
-#include "chrome/browser/ui/panels/native_panel.h"
-#include "ui/gfx/animation/animation_delegate.h"
-#include "ui/views/widget/widget_delegate.h"
-#include "ui/views/widget/widget_observer.h"
-
-#if defined(OS_WIN)
-#include "ui/base/win/hwnd_subclass.h"
-#endif
-
-class ScopedKeepAlive;
-class Panel;
-class PanelBoundsAnimation;
-class PanelFrameView;
-class TaskbarWindowThumbnailerWin;
-
-namespace views {
-class WebView;
-}
-
-class PanelView : public NativePanel,
-                  public views::WidgetObserver,
-                  public views::WidgetDelegateView,
-#if defined(OS_WIN)
-                  public ui::HWNDMessageFilter,
-#endif
-                  public gfx::AnimationDelegate {
- public:
-  // The size of inside area used for mouse resizing.
-  static const int kResizeInsideBoundsSize = 5;
-
-  PanelView(Panel* panel, const gfx::Rect& bounds, bool always_on_top);
-  ~PanelView() override;
-
-  // Overridden from NativePanel:
-  void ShowPanel() override;
-  void ShowPanelInactive() override;
-  gfx::Rect GetPanelBounds() const override;
-  void SetPanelBounds(const gfx::Rect& bounds) override;
-  void SetPanelBoundsInstantly(const gfx::Rect& bounds) override;
-  void ClosePanel() override;
-  void ActivatePanel() override;
-  void DeactivatePanel() override;
-  bool IsPanelActive() const override;
-  void PreventActivationByOS(bool prevent_activation) override;
-  gfx::NativeWindow GetNativePanelWindow() override;
-  void UpdatePanelTitleBar() override;
-  void UpdatePanelLoadingAnimations(bool should_animate) override;
-  void PanelCut() override;
-  void PanelCopy() override;
-  void PanelPaste() override;
-  void DrawAttention(bool draw_attention) override;
-  bool IsDrawingAttention() const override;
-  void HandlePanelKeyboardEvent(
-      const content::NativeWebKeyboardEvent& event) override;
-  void FullScreenModeChanged(bool is_full_screen) override;
-  bool IsPanelAlwaysOnTop() const override;
-  void SetPanelAlwaysOnTop(bool on_top) override;
-  void UpdatePanelMinimizeRestoreButtonVisibility() override;
-  void SetWindowCornerStyle(panel::CornerStyle corner_style) override;
-  void PanelExpansionStateChanging(Panel::ExpansionState old_state,
-                                   Panel::ExpansionState new_state) override;
-  void AttachWebContents(content::WebContents* contents) override;
-  void DetachWebContents(content::WebContents* contents) override;
-  gfx::Size WindowSizeFromContentSize(
-      const gfx::Size& content_size) const override;
-  gfx::Size ContentSizeFromWindowSize(
-      const gfx::Size& window_size) const override;
-  int TitleOnlyHeight() const override;
-  void MinimizePanelBySystem() override;
-  bool IsPanelMinimizedBySystem() const override;
-  bool IsPanelShownOnActiveDesktop() const override;
-  void ShowShadow(bool show) override;
-  NativePanelTesting* CreateNativePanelTesting() override;
-
-  // Overridden from views::View:
-  gfx::Size GetMinimumSize() const override;
-  gfx::Size GetMaximumSize() const override;
-
-  // Return true if the mouse event is handled.
-  // |mouse_location| is in screen coordinate system.
-  bool OnTitlebarMousePressed(const gfx::Point& mouse_location);
-  bool OnTitlebarMouseDragged(const gfx::Point& mouse_location);
-  bool OnTitlebarMouseReleased(panel::ClickModifier modifier);
-  bool OnTitlebarMouseCaptureLost();
-
-  PanelFrameView* GetFrameView() const;
-  bool IsAnimatingBounds() const;
-
-  Panel* panel() const { return panel_.get(); }
-  views::Widget* window() const { return window_; }
-  bool force_to_paint_as_inactive() const {
-    return force_to_paint_as_inactive_;
-  }
-
-  // PanelStackView might want to update the stored bounds directly since it
-  // has already taken care of updating the window bounds directly.
-  void set_cached_bounds_directly(const gfx::Rect& bounds) { bounds_ = bounds; }
-
- private:
-  enum MouseDraggingState {
-    NO_DRAGGING,
-    DRAGGING_STARTED,
-    DRAGGING_ENDED
-  };
-
-  // Overridden from views::WidgetDelegate:
-  void OnDisplayChanged() override;
-  void OnWorkAreaChanged() override;
-  bool WillProcessWorkAreaChange() const override;
-  views::View* GetContentsView() override;
-  views::NonClientFrameView* CreateNonClientFrameView(
-      views::Widget* widget) override;
-  bool CanResize() const override;
-  bool CanMaximize() const override;
-  bool CanMinimize() const override;
-  views::Widget* GetWidget() override;
-  const views::Widget* GetWidget() const override;
-  base::string16 GetWindowTitle() const override;
-  gfx::ImageSkia GetWindowAppIcon() override;
-  gfx::ImageSkia GetWindowIcon() override;
-  void WindowClosing() override;
-  void DeleteDelegate() override;
-  void OnWindowBeginUserBoundsChange() override;
-  void OnWindowEndUserBoundsChange() override;
-
-  // Overridden from views::View:
-  void Layout() override;
-  bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
-
-  // Overridden from views::WidgetObserver:
-  void OnWidgetDestroying(views::Widget* widget) override;
-  void OnWidgetActivationChanged(views::Widget* widget, bool active) override;
-  void OnWidgetBoundsChanged(views::Widget* widget,
-                             const gfx::Rect& new_bounds) override;
-
-  // Overridden from ui::HWNDMessageFilter:
-#if defined(OS_WIN)
-  bool FilterMessage(HWND hwnd,
-                     UINT message,
-                     WPARAM w_param,
-                     LPARAM l_param,
-                     LRESULT* l_result) override;
-#endif
-
-  // Overridden from AnimationDelegate:
-  void AnimationEnded(const gfx::Animation* animation) override;
-  void AnimationProgressed(const gfx::Animation* animation) override;
-
-  void UpdateLoadingAnimations(bool should_animate);
-  void UpdateWindowTitle();
-  void UpdateWindowIcon();
-  void SetBoundsInternal(const gfx::Rect& bounds, bool animate);
-  bool EndDragging(bool cancelled);
-
-  // Sets the bounds of the underlying window to |new_bounds|. Note that this
-  // might update the window style to work around the minimum overlapped
-  // window height limitation.
-  void SetWidgetBounds(const gfx::Rect& new_bounds);
-
-#if defined(OS_WIN)
-  // Sets |attribute_value_to_set| and/or clears |attribute_value_to_reset| for
-  // the attibute denoted by |attribute_index|. This is used to update the style
-  // or extended style for the native window.
-  void UpdateWindowAttribute(int attribute_index,
-                             int attribute_value_to_set,
-                             int attribute_value_to_reset,
-                             bool update_frame);
-#endif
-
-  std::unique_ptr<Panel> panel_;
-  gfx::Rect bounds_;
-
-  // The window that holds all panel views. Lifetime managed by native widget.
-  // See widget.h.
-  views::Widget* window_;
-
-  // Close gets called more than once, so use this to do one-time clean up once.
-  bool window_closed_;
-
-  // The view hosting the web contents. Will be destroyed when child views
-  // of this class are destroyed.
-  views::WebView* web_view_;
-
-  // True if the panel should always stay on top of other windows.
-  bool always_on_top_;
-
-  // Is the panel receiving the focus?
-  bool focused_;
-
-  // True if the user is resizing the panel.
-  bool user_resizing_;
-
-#if defined(OS_WIN)
-  // True if the user is resizing the interior edge of a stack.
-  bool user_resizing_interior_stacked_panel_edge_;
-
-  // The original full size of the resizing panel before the resizing states.
-  gfx::Size original_full_size_of_resizing_panel_;
-
-  // The original full size of the panel below the resizing panel before the
-  // resizing starts.
-  gfx::Size original_full_size_of_panel_below_resizing_panel_;
-#endif
-
-
-  // Is the mouse button currently down?
-  bool mouse_pressed_;
-
-  // Location the mouse was pressed at or dragged to last time when we process
-  // the mouse event. Used in drag-and-drop.
-  // This point is represented in the screen coordinate system.
-  gfx::Point last_mouse_location_;
-
-  // Is the titlebar currently being dragged?  That is, has the cursor
-  // moved more than kDragThreshold away from its starting position?
-  MouseDraggingState mouse_dragging_state_;
-
-  // Used to animate the bounds change.
-  std::unique_ptr<PanelBoundsAnimation> bounds_animator_;
-  gfx::Rect animation_start_bounds_;
-
-  // Is the panel in highlighted state to draw people's attention?
-  bool is_drawing_attention_;
-
-  // Should we force to paint the panel as inactive? This is needed when we need
-  // to capture the screenshot before an active panel goes minimized.
-  bool force_to_paint_as_inactive_;
-
-  // The last view that had focus in the panel. This is saved so that focus can
-  // be restored properly when a drag ends.
-  views::View* old_focused_view_;
-
-  std::unique_ptr<ScopedKeepAlive> keep_alive_;
-
-#if defined(OS_WIN)
-  // Used to provide custom taskbar thumbnail for Windows 7 and later.
-  std::unique_ptr<TaskbarWindowThumbnailerWin> thumbnailer_;
-#endif
-
-  DISALLOW_COPY_AND_ASSIGN(PanelView);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_