Abstract fullscreen exit bubble logic to bring Linux's behaviour in line with

chrome/browser/ui/views/fullscreen_exit_bubble.h

-// Copyright (c) 2011 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_FULLSCREEN_EXIT_BUBBLE_H_
-#define CHROME_BROWSER_UI_VIEWS_FULLSCREEN_EXIT_BUBBLE_H_
-#pragma once
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/timer.h"
-#include "chrome/browser/command_updater.h"
-#include "ui/base/animation/animation_delegate.h"
-#include "ui/gfx/point.h"
-#include "views/controls/link_listener.h"
-
-namespace gfx {
-class Rect;
-}
-
-namespace ui {
-class SlideAnimation;
-}
-
-namespace views {
-class View;
-class Widget;
-}
-
-// FullscreenExitBubble is responsible for showing a bubble atop the screen in
-// fullscreen mode, telling users how to exit and providing a click target.
-// The bubble auto-hides, and re-shows when the user moves to the screen top.
-class FullscreenExitBubble : public views::LinkListener,
-                             public ui::AnimationDelegate {
- public:
-  explicit FullscreenExitBubble(
-      views::Widget* frame,
-      CommandUpdater::CommandUpdaterDelegate* delegate);
-  virtual ~FullscreenExitBubble();
-
- private:
-  class FullscreenExitView;
-
-  static const double kOpacity;          // Opacity of the bubble, 0.0 - 1.0
-  static const int kInitialDelayMs;      // Initial time bubble remains onscreen
-  static const int kIdleTimeMs;          // Time before mouse idle triggers hide
-  static const int kPositionCheckHz;     // How fast to check the mouse position
-  static const int kSlideInRegionHeightPx;
-                                         // Height of region triggering slide-in
-  static const int kSlideInDurationMs;   // Duration of slide-in animation
-  static const int kSlideOutDurationMs;  // Duration of slide-out animation
-
-  // views::LinkListener:
-  virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
-
-  // ui::AnimationDelegate:
-  virtual void AnimationProgressed(const ui::Animation* animation);
-  virtual void AnimationEnded(const ui::Animation* animation);
-
-  // Called repeatedly to get the current mouse position and animate the bubble
-  // on or off the screen as appropriate.
-  void CheckMousePosition();
-
-  // Hides the bubble.  This is a separate function so it can be called by a
-  // timer.
-  void Hide();
-
-  // Returns the current desirable rect for the popup window.  If
-  // |ignore_animation_state| is true this returns the rect assuming the popup
-  // is fully onscreen.
-  gfx::Rect GetPopupRect(bool ignore_animation_state) const;
-
-  // The root view containing us.
-  views::View* root_view_;
-
-  // Someone who can toggle fullscreen mode on and off when the user requests
-  // it.
-  CommandUpdater::CommandUpdaterDelegate* delegate_;
-
-  views::Widget* popup_;
-
-  // The contents of the popup.
-  FullscreenExitView* view_;
-
-  // Animation controlling sliding into/out of the top of the screen.
-  scoped_ptr<ui::SlideAnimation> size_animation_;
-
-  // Timer to delay before allowing the bubble to hide after it's initially
-  // shown.
-  base::OneShotTimer<FullscreenExitBubble> initial_delay_;
-
-  // Timer to see how long the mouse has been idle.
-  base::OneShotTimer<FullscreenExitBubble> idle_timeout_;
-
-  // Timer to poll the current mouse position.  We can't just listen for mouse
-  // events without putting a non-empty HWND onscreen (or hooking Windows, which
-  // has other problems), so instead we run a low-frequency poller to see if the
-  // user has moved in or out of our show/hide regions.
-  base::RepeatingTimer<FullscreenExitBubble> mouse_position_checker_;
-
-  // The most recently seen mouse position, in screen coordinates.  Used to see
-  // if the mouse has moved since our last check.
-  gfx::Point last_mouse_pos_;
-
-  DISALLOW_COPY_AND_ASSIGN(FullscreenExitBubble);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_FULLSCREEN_EXIT_BUBBLE_H_