Move code related to the window controls to ash/wm/caption_buttons

ash/wm/workspace/frame_maximize_button.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_WM_WORKSPACE_FRAME_MAXIMIZE_BUTTON_H_
-#define ASH_WM_WORKSPACE_FRAME_MAXIMIZE_BUTTON_H_
-
-#include "ash/ash_export.h"
-#include "ash/wm/workspace/maximize_bubble_frame_state.h"
-#include "ash/wm/workspace/snap_types.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/timer/timer.h"
-#include "ui/aura/window_observer.h"
-#include "ui/views/controls/button/image_button.h"
-#include "ui/views/widget/widget_observer.h"
-
-namespace views {
-class NonClientFrameView;
-}
-
-namespace ash {
-
-namespace internal {
-class PhantomWindowController;
-class SnapSizer;
-}
-
-class MaximizeBubbleController;
-
-// Button used for the maximize control on the frame. Handles snapping logic.
-class ASH_EXPORT FrameMaximizeButton : public views::ImageButton,
-                                       public views::WidgetObserver,
-                                       public aura::WindowObserver {
- public:
-  FrameMaximizeButton(views::ButtonListener* listener,
-                      views::NonClientFrameView* frame);
-  virtual ~FrameMaximizeButton();
-
-  // Updates |snap_type_| based on a a given snap type. This is used by
-  // external hover events from the button menu.
-  void SnapButtonHovered(SnapType type);
-
-  // The user clicked the |type| button and the action needs to be performed,
-  // which will at the same time close the window.
-  void ExecuteSnapAndCloseMenu(SnapType type);
-
-  // Remove the maximize menu from the screen (and destroy it).
-  void DestroyMaximizeMenu();
-
-  // Returns true when the user clicks and drags the button.
-  bool is_snap_enabled() const { return is_snap_enabled_; }
-
-  // WindowObserver overrides:
-  virtual void OnWindowBoundsChanged(aura::Window* window,
-                                     const gfx::Rect& old_bounds,
-                                     const gfx::Rect& new_bounds) OVERRIDE;
-  virtual void OnWindowPropertyChanged(aura::Window* window,
-                                       const void* key,
-                                       intptr_t old) OVERRIDE;
-  virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
-
-  // WidgetObserver overrides:
-  virtual void OnWidgetActivationChanged(views::Widget* widget,
-                                        bool active) OVERRIDE;
-
-  // ImageButton overrides:
-  virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
-  virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
-  virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
-  virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
-  virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
-  virtual void OnMouseCaptureLost() OVERRIDE;
-
-  // ui::EventHandler overrides:
-  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
-
-  // views::View overwrite:
-  virtual void SetVisible(bool visible) OVERRIDE;
-
-  // Unit test overwrite: Change the UI delay used for the bubble show up.
-  void set_bubble_appearance_delay_ms(int bubble_appearance_delay_ms) {
-    bubble_appearance_delay_ms_ = bubble_appearance_delay_ms;
-  }
-
-  // Unit test accessor for the maximize bubble.
-  MaximizeBubbleController* maximizer() { return maximizer_.get(); }
-
-  // Unit test to see if phantom window is open.
-  bool phantom_window_open() { return phantom_window_.get() != NULL; }
-
- private:
-  class EscapeEventFilter;
-
-  // Initializes the snap-gesture based on the event. This should only be called
-  // when the event is confirmed to have started a snap gesture.
-  void ProcessStartEvent(const ui::LocatedEvent& event);
-
-  // Updates the snap-state based on the current event. This should only be
-  // called after the snap gesture has already started.
-  void ProcessUpdateEvent(const ui::LocatedEvent& event);
-
-  // Returns true if the window was snapped. Returns false otherwise.
-  bool ProcessEndEvent(const ui::LocatedEvent& event);
-
-  // Cancels snap behavior. If |keep_menu_open| is set, a possibly opened
-  // bubble help will remain open.
-  void Cancel(bool keep_menu_open);
-
-  // Installs/uninstalls an EventFilter to track when escape is pressed.
-  void InstallEventFilter();
-  void UninstallEventFilter();
-
-  // Updates the snap position from the event location. This is invoked by
-  // |update_timer_|.
-  void UpdateSnapFromEventLocation();
-
-  // Updates |snap_type_| based on a mouse drag. If |select_default| is set,
-  // the single button click default setting of the snap sizer should be used.
-  // Set |is_touch| to true to make touch snapping at the corners possible.
-  void UpdateSnap(const gfx::Point& location,
-                  bool select_default,
-                  bool is_touch);
-
-  // Returns the type of snap based on the specified location.
-  SnapType SnapTypeForLocation(const gfx::Point& location) const;
-
-  // Returns the bounds of the resulting window for the specified type.
-  gfx::Rect ScreenBoundsForType(SnapType type,
-                                const internal::SnapSizer& snap_sizer) const;
-
-  // Converts location to screen coordinates and returns it. These are the
-  // coordinates used by the SnapSizer.
-  gfx::Point LocationForSnapSizer(const gfx::Point& location) const;
-
-  // Snaps the window to the current snap position.
-  void Snap(const internal::SnapSizer& snap_sizer);
-
-  // Determine the maximize type of this window.
-  MaximizeBubbleFrameState GetMaximizeBubbleFrameState() const;
-
-  // Frame that the maximize button acts on.
-  views::NonClientFrameView* frame_;
-
-  // Renders the snap position.
-  scoped_ptr<internal::PhantomWindowController> phantom_window_;
-
-  // Is snapping enabled? Set on press so that in drag we know whether we
-  // should show the snap locations.
-  bool is_snap_enabled_;
-
-  // Did the user drag far enough to trigger snapping?
-  bool exceeded_drag_threshold_;
-
-  // Remember the widget on which we have put some an observers,
-  // so that we can remove it upon destruction.
-  views::Widget* widget_;
-
-  // Location of the press.
-  gfx::Point press_location_;
-
-  // True if the press was triggered by a gesture/touch.
-  bool press_is_gesture_;
-
-  // Current snap type.
-  SnapType snap_type_;
-
-  scoped_ptr<internal::SnapSizer> snap_sizer_;
-
-  scoped_ptr<EscapeEventFilter> escape_event_filter_;
-
-  base::OneShotTimer<FrameMaximizeButton> update_timer_;
-
-  scoped_ptr<MaximizeBubbleController> maximizer_;
-
-  // The delay of the bubble appearance.
-  int bubble_appearance_delay_ms_;
-
-  DISALLOW_COPY_AND_ASSIGN(FrameMaximizeButton);
-};
-
-}  // namespace ash
-
-#endif  // ASH_WM_WORKSPACE_FRAME_MAXIMIZE_BUTTON_H_