Implement a status throbber on the mac, currently using the Win artwork. Made the tab cell use a generic NSView for showing the icon instead of relying on the NSButtonCell to draw it, so a NSImageView is in place by default. Remove un-needed outlets, bindings, and views from the nib. BUG=11916. TEST=loading pages, opening and closing tabs.

Review URL: http://codereview.chromium.org/115527

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16410 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 37 insertions, 0 deletions

diff --git a/chrome/browser/cocoa/throbber_view.h b/chrome/browser/cocoa/throbber_view.h
new file mode 100644
index 0000000..5403371
--- /dev/null
+++ b/chrome/browser/cocoa/throbber_view.h
@@ -0,0 +1,37 @@
+// Copyright (c) 2009 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_COCOA_THROBBER_VIEW_H_
+#define CHROME_BROWSER_COCOA_THROBBER_VIEW_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/scoped_nsobject.h"
+
+@class TimerTarget;
+
+// A class that knows how to draw an animated state to indicate progress.
+// Currently draws via a sequence of frames in an image, but may ultimately be
+// written to render paths that are rotated around a center origin. Creating
+// the class starts the animation, destroying it stops it. There is no state
+// where the class is frozen on an image and not animating.
+
+@interface ThrobberView : NSView {
+ @private
+  scoped_nsobject<NSImage> image_;
+  scoped_nsobject<TimerTarget> target_;  // Target of animation timer.
+  NSTimer* timer_;  // Animation timer. Weak, owned by runloop.
+  unsigned int numFrames_;  // Number of frames in this animation.
+  unsigned int animationFrame_;  // Current frame of the animation,
+                                 // [0..numFrames_)
+}
+
+// Creates the view with |frame| and the image strip desginated by |image|. The
+// image needs to be made of squares such that the height divides evently into
+// the width. Takes ownership of |image|.
+- (id)initWithFrame:(NSRect)frame image:(NSImage*)image;
+
+@end
+
+#endif  // CHROME_BROWSER_COCOA_THROBBER_VIEW_H_