chrome/browser/ui/cocoa/tabs/throbber_view.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_COCOA_TABS_THROBBER_VIEW_H_
   6 #define CHROME_BROWSER_UI_COCOA_TABS_THROBBER_VIEW_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 @protocol ThrobberDataDelegate;
  11
  12 // A class that knows how to draw an animated state to indicate progress.
  13 // Creating the class starts the animation, destroying it stops it. There are
  14 // two types:
  15 //
  16 // - Filmstrip: Draws via a sequence of frames in an image. There is no state
  17 //   where the class is frozen on an image and not animating. The image needs to
  18 //   be made of squares such that the height divides evenly into the width.
  19 //
  20 // - Toast: Draws an image animating down to the bottom and then another image
  21 //   animating up from the bottom. Stops once the animation is complete.
  22
  23 @interface ThrobberView : NSView {
  24  @private
  25   id<ThrobberDataDelegate> dataDelegate_;
  26 }
  27
  28 // Creates a filmstrip view with |frame| and image |image|.
  29 + (id)filmstripThrobberViewWithFrame:(NSRect)frame
  30                                image:(NSImage*)image;
  31
  32 // Creates a toast view with |frame| and specified images.
  33 + (id)toastThrobberViewWithFrame:(NSRect)frame
  34                      beforeImage:(NSImage*)beforeImage
  35                       afterImage:(NSImage*)afterImage;
  36
  37 @end
  38
  39 #endif  // CHROME_BROWSER_UI_COCOA_TABS_THROBBER_VIEW_H_