chrome/browser/ui/status_bubble.h

   1 // Copyright (c) 2011 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_STATUS_BUBBLE_H_
   6 #define CHROME_BROWSER_UI_STATUS_BUBBLE_H_
   7
   8 #include <string>
   9
  10 #include "base/strings/string16.h"
  11
  12 class GURL;
  13 namespace gfx {
  14 class Point;
  15 }
  16
  17 ////////////////////////////////////////////////////////////////////////////////
  18 // StatusBubble interface
  19 //  An interface implemented by an object providing the status display area of
  20 //  the browser window.
  21 //
  22 class StatusBubble {
  23  public:
  24   // On hover, expand status bubble to fit long URL after this delay.
  25   static const int kExpandHoverDelayMS = 1600;
  26
  27   virtual ~StatusBubble() {}
  28
  29   // Sets the bubble contents to a specific string and causes the bubble
  30   // to display immediately. Subsequent empty SetURL calls (typically called
  31   // when the cursor exits a link) will set the status bubble back to its
  32   // status text. To hide the status bubble again, either call SetStatus
  33   // with an empty string, or call Hide().
  34   virtual void SetStatus(const base::string16& status) = 0;
  35
  36   // Sets the bubble text to a URL - if given a non-empty URL, this will cause
  37   // the bubble to fade in and remain open until given an empty URL or until
  38   // the Hide() method is called. languages is the value of Accept-Language
  39   // to determine what characters are understood by a user.
  40   virtual void SetURL(const GURL& url, const std::string& languages) = 0;
  41
  42   // Skip the fade and instant-hide the bubble.
  43   virtual void Hide() = 0;
  44
  45   // Called when the user's mouse has moved over web content. This is used to
  46   // determine when the status area should move out of the way of the user's
  47   // mouse. |position| is the absolute position of the pointer, and
  48   // |left_content| is true if the mouse just left the content area.
  49   virtual void MouseMoved(const gfx::Point& position, bool left_content) = 0;
  50
  51   // Called when the download shelf becomes visible or invisible.
  52   // This is used by to ensure that the status bubble does not obscure
  53   // the download shelf, when it is visible.
  54   virtual void UpdateDownloadShelfVisibility(bool visible) = 0;
  55 };
  56
  57 #endif  // CHROME_BROWSER_UI_STATUS_BUBBLE_H_