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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_UI_FULLSCREEN_FULLSCREEN_EXIT_BUBBLE_H_
      6 #define CHROME_BROWSER_UI_FULLSCREEN_FULLSCREEN_EXIT_BUBBLE_H_
      7 
      8 #include "base/timer/timer.h"
      9 #include "chrome/browser/ui/fullscreen/fullscreen_exit_bubble_type.h"
     10 #include "ui/gfx/animation/animation_delegate.h"
     11 #include "ui/gfx/point.h"
     12 #include "url/gurl.h"
     13 
     14 class Browser;
     15 
     16 namespace gfx {
     17 class Rect;
     18 }
     19 
     20 class FullscreenExitBubble : public gfx::AnimationDelegate {
     21  public:
     22   explicit FullscreenExitBubble(Browser* browser,
     23                                 const GURL& url,
     24                                 FullscreenExitBubbleType bubble_type);
     25   virtual ~FullscreenExitBubble();
     26 
     27  protected:
     28   static const int kPaddingPx;           // Amount of padding around the link
     29   static const int kInitialDelayMs;      // Initial time bubble remains onscreen
     30   static const int kIdleTimeMs;          // Time before mouse idle triggers hide
     31   static const int kPositionCheckHz;     // How fast to check the mouse position
     32   static const int kSlideInRegionHeightPx;
     33                                          // Height of region triggering
     34                                          // slide-in
     35   static const int kPopupTopPx;          // Space between the popup and the top
     36                                          // of the screen.
     37   static const int kSlideInDurationMs;   // Duration of slide-in animation
     38   static const int kSlideOutDurationMs;  // Duration of slide-out animation
     39 
     40   // Returns the current desirable rect for the popup window.  If
     41   // |ignore_animation_state| is true this returns the rect assuming the popup
     42   // is fully onscreen.
     43   virtual gfx::Rect GetPopupRect(bool ignore_animation_state) const = 0;
     44   virtual gfx::Point GetCursorScreenPoint() = 0;
     45   virtual bool WindowContainsPoint(gfx::Point pos) = 0;
     46 
     47   // Returns true if the window is active.
     48   virtual bool IsWindowActive() = 0;
     49 
     50   // Hides the bubble.  This is a separate function so it can be called by a
     51   // timer.
     52   virtual void Hide() = 0;
     53 
     54   // Shows the bubble.
     55   virtual void Show() = 0;
     56 
     57   virtual bool IsAnimating() = 0;
     58 
     59   // True if the mouse position can trigger sliding in the exit fullscreen
     60   // bubble when the bubble is hidden.
     61   virtual bool CanMouseTriggerSlideIn() const = 0;
     62 
     63   void StartWatchingMouse();
     64   void StopWatchingMouse();
     65   bool IsWatchingMouse() const;
     66 
     67   // Called repeatedly to get the current mouse position and animate the bubble
     68   // on or off the screen as appropriate.
     69   void CheckMousePosition();
     70 
     71   void ToggleFullscreen();
     72   // Accepts the request. Can cause FullscreenExitBubble to be deleted.
     73   void Accept();
     74   // Denys the request. Can cause FullscreenExitBubble to be deleted.
     75   void Cancel();
     76 
     77   // The following strings may change according to the content type and URL.
     78   base::string16 GetCurrentMessageText() const;
     79   base::string16 GetCurrentDenyButtonText() const;
     80 
     81   // The following strings never change.
     82   base::string16 GetAllowButtonText() const;
     83   base::string16 GetInstructionText() const;
     84 
     85   // The browser this bubble is in.
     86   Browser* browser_;
     87 
     88   // The host the bubble is for, can be empty.
     89   GURL url_;
     90 
     91   // The type of the bubble; controls e.g. which buttons to show.
     92   FullscreenExitBubbleType bubble_type_;
     93 
     94  private:
     95   // Timer to delay before allowing the bubble to hide after it's initially
     96   // shown.
     97   base::OneShotTimer<FullscreenExitBubble> initial_delay_;
     98 
     99   // Timer to see how long the mouse has been idle.
    100   base::OneShotTimer<FullscreenExitBubble> idle_timeout_;
    101 
    102   // Timer to poll the current mouse position.  We can't just listen for mouse
    103   // events without putting a non-empty HWND onscreen (or hooking Windows, which
    104   // has other problems), so instead we run a low-frequency poller to see if the
    105   // user has moved in or out of our show/hide regions.
    106   base::RepeatingTimer<FullscreenExitBubble> mouse_position_checker_;
    107 
    108   // The most recently seen mouse position, in screen coordinates.  Used to see
    109   // if the mouse has moved since our last check.
    110   gfx::Point last_mouse_pos_;
    111 
    112   DISALLOW_COPY_AND_ASSIGN(FullscreenExitBubble);
    113 };
    114 
    115 #endif  // CHROME_BROWSER_UI_FULLSCREEN_FULLSCREEN_EXIT_BUBBLE_H_
    116