chromeos: Move files in //ash/common to //ash

ash/common/wm/panels/panel_window_resizer.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 ASH_COMMON_WM_PANELS_PANEL_WINDOW_RESIZER_H_
-#define ASH_COMMON_WM_PANELS_PANEL_WINDOW_RESIZER_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/common/wm/window_resizer.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-
-namespace gfx {
-class Rect;
-class Point;
-}
-
-namespace ash {
-
-// PanelWindowResizer is used by ToplevelWindowEventFilter to handle dragging,
-// moving or resizing panel window. These can be attached and detached from the
-// launcher.
-class ASH_EXPORT PanelWindowResizer : public WindowResizer {
- public:
-  ~PanelWindowResizer() override;
-
-  // Creates a new PanelWindowResizer. The caller takes ownership of the
-  // returned object. The ownership of |next_window_resizer| is taken by the
-  // returned object. Returns NULL if not resizable.
-  static PanelWindowResizer* Create(WindowResizer* next_window_resizer,
-                                    wm::WindowState* window_state);
-
-  // WindowResizer:
-  void Drag(const gfx::Point& location, int event_flags) override;
-  void CompleteDrag() override;
-  void RevertDrag() override;
-
- private:
-  // Creates PanelWindowResizer that adds the ability to attach / detach panel
-  // windows as well as reparenting them to the panel layer while dragging to
-  // |next_window_resizer|. This object takes ownership of
-  // |next_window_resizer|.
-  PanelWindowResizer(WindowResizer* next_window_resizer,
-                     wm::WindowState* window_state);
-
-  // Checks if the provided window bounds should attach to the launcher. If true
-  // the offset gives the necessary adjustment to snap to the launcher.
-  bool AttachToLauncher(const gfx::Rect& bounds, gfx::Point* offset);
-
-  // Tracks the panel's initial position and attachment at the start of a drag
-  // and informs the PanelLayoutManager that a drag has started if necessary.
-  void StartedDragging();
-
-  // Informs the PanelLayoutManager that the drag is complete if it was informed
-  // of the drag start.
-  void FinishDragging();
-
-  // Updates the dragged panel's index in the launcher.
-  void UpdateLauncherPosition();
-
-  // Last pointer location in screen coordinates.
-  gfx::Point last_location_;
-
-  // Wraps a window resizer and adds panel detaching / reattaching and snapping
-  // to launcher behavior during drags.
-  std::unique_ptr<WindowResizer> next_window_resizer_;
-
-  // Panel container window.
-  WmWindow* panel_container_;
-  WmWindow* initial_panel_container_;
-
-  // Set to true once Drag() is invoked and the bounds of the window change.
-  bool did_move_or_resize_;
-
-  // True if the window started attached to the launcher.
-  const bool was_attached_;
-
-  base::WeakPtrFactory<PanelWindowResizer> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PanelWindowResizer);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_WM_PANELS_PANEL_WINDOW_RESIZER_H_