Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/panels/panel_drag_gtk.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_GTK_PANELS_PANEL_DRAG_GTK_H_
-#define CHROME_BROWSER_UI_GTK_PANELS_PANEL_DRAG_GTK_H_
-
-#include <gtk/gtk.h>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "ui/base/gtk/gtk_signal.h"
-
-class Panel;
-class PanelDragDelegate;
-
-// Class for GTK handling of move-drag and resize-drag on a panel.
-// Only one type of drag may be active at any time.
-// Dragging only begins if the mouse is moved beyond the drag threshold.
-// If mouse is released without exceeding the drag threshold, the mouse
-// press and release is treated as a mouse click.
-class PanelDragGtk {
- public:
-  explicit PanelDragGtk(Panel* panel);
-  ~PanelDragGtk();
-
-  GtkWidget* widget() const { return drag_widget_; }
-
-  // Sets up mouse and keyboard events processing while the mouse
-  // is pressed on a window edge.
-  // |event| is the mouse press event.
-  // |cursor| is the cursor to display during the drag.
-  // |edge| is the window edge from which to resize the panel.
-  void InitialWindowEdgeMousePress(GdkEventButton* event, GdkCursor* cursor,
-                                   GdkWindowEdge& edge);
-
-  // Sets up mouse and keyboard events processing while the mouse is
-  // pressed on the titlebar.
-  // |event| is the mouse press event.
-  // |titlebar_widget| should handle the mouse release event if the mouse
-  // is released without exceeding the drag threshold (a mouse click).
-  void InitialTitlebarMousePress(GdkEventButton* event,
-                                 GtkWidget* titlebar_widget);
-
- private:
-  friend class GtkNativePanelTesting;
-
-  enum DragState {
-    NOT_DRAGGING,
-    DRAG_CAN_START,  // mouse pressed
-    DRAG_IN_PROGRESS,  // mouse moved beyond drag threshold
-    DRAG_ENDED_WAITING_FOR_MOUSE_RELEASE
-  };
-
-  // Callbacks for GTK mouse and key events.
-  CHROMEGTK_CALLBACK_1(PanelDragGtk, gboolean, OnMouseMoveEvent,
-                       GdkEventMotion*);
-  CHROMEGTK_CALLBACK_1(PanelDragGtk, gboolean, OnButtonPressEvent,
-                       GdkEventButton*);
-  CHROMEGTK_CALLBACK_1(PanelDragGtk, gboolean, OnButtonReleaseEvent,
-                       GdkEventButton*);
-  CHROMEGTK_CALLBACK_1(PanelDragGtk, gboolean, OnKeyPressEvent,
-                       GdkEventKey*);
-  CHROMEGTK_CALLBACK_1(PanelDragGtk, gboolean, OnKeyReleaseEvent,
-                       GdkEventKey*);
-  CHROMEGTK_CALLBACK_1(PanelDragGtk, gboolean, OnGrabBrokenEvent,
-                       GdkEventGrabBroken*);
-
-  // Utility to dcheck a bunch of state to ensure a clean slate.
-  // Returns only if all the dchecks pass.
-  void AssertCleanState();
-
-  void GrabPointerAndKeyboard(GdkEventButton* event,
-                              GdkCursor* cursor);
-  void ReleasePointerAndKeyboardGrab();
-
-  // Ends any drag that is currently in progress (if any).
-  // Resets all drag state except for pointer and keyboard grabs.
-  // The grabs are released when the mouse is released to prevent a
-  // mouse release *after* the drag has ended (e.g. via ESC key) from
-  // being treated as a mouse click.
-  void EndDrag(bool canceled);
-
-  // Weak pointer to the panel being dragged.
-  Panel* panel_;
-
-  // Invisible event box to receive mouse and key events.
-  GtkWidget* drag_widget_;
-
-  DragState drag_state_;
-
-  // A copy of the initial button press event.
-  GdkEvent* initial_mouse_down_;
-
-  // Widget that should process the mouse click if mouse is released
-  // without exceeding the drag threshold. May be NULL if no click
-  // handling is necessary.
-  GtkWidget* click_handler_;
-
-  // Delegate for processing drag depends on actual type of drag.
-  PanelDragDelegate* drag_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(PanelDragGtk);
-};
-
-#endif  // CHROME_BROWSER_UI_GTK_PANELS_PANEL_DRAG_GTK_H_