Implement Clear Browser Data for Mac as an app modal dialog. Uses the profile...

chrome/browser/cocoa/throbber_view.mm

 // 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.
 
 #import "chrome/browser/cocoa/throbber_view.h"
 
 #include "base/logging.h"
 
 const float kAnimationIntervalSeconds = 0.03;  // 30ms, same as windows
 
@@ skipping 21 matching lines @@
 
 - (void)animate:(NSTimer*)timer {
   [throbber_ animate];
 }
 @end
 
 @implementation ThrobberView
 
 - (id)initWithFrame:(NSRect)frame image:(NSImage*)image {
   if ((self = [super initWithFrame:frame])) {
-    // Ensure that the height divides evenly into the width. Cache the
-    // number of frames in the animation for later.
-    NSSize imageSize = [image size];
-    DCHECK(imageSize.height && imageSize.width);
-    if (!imageSize.height)
-      return nil;
-    DCHECK((int)imageSize.width % (int)imageSize.height == 0);
-    numFrames_ = (int)imageSize.width / (int)imageSize.height;
-    DCHECK(numFrames_);
-
-    // First check if we have a bitmap image rep and use it, otherwise fall
-    // back to creating one.
-    NSBitmapImageRep* rep = [[image representations] objectAtIndex:0];
-    if (![rep isKindOfClass:[NSBitmapImageRep class]]) {
-      [image lockFocus];
-      NSRect imageRect = NSMakeRect(0, 0, imageSize.width, imageSize.height);
-      rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:imageRect]
-                autorelease];
-      [image unlockFocus];
-    }
-    image_.reset([[CIImage alloc] initWithBitmapImageRep:rep]);
+    [self setImage:image];
 
 #if 0
 // TODO(pinkerton): The invalidation of the view to trigger re-draw causes

[TVL, 2009/05/29 13:05:19]

this should also move into the setImage call with some tweaks:
  stop timer when clearning animationFrame_
  numFrames_ > 1, create timer

[pink (ping after 24hrs), 2009/05/29 13:19:11]

Done.

 // the entire title-bar to redraw (you can see it with QuartzDebug). For some
 // reason, setting isOpaque on this view, or any of its parent views, doesn't
 // help. As a result, enabling this timer causes new tab to take a very long
 // time on a loaded machine, crushing our perf bot when it's under load. For
 // now, I'm disabling the timer so we draw the first frame of the animation,
 // but nothing more. There are a couple of ways we can fix this:
 // 1) Try to figure out why the invalidate is invalidating the entire title bar
 // 2) Find some way to draw only the pixels we want and nothing else, but I
 // don't know how we'd do that.
     // Start a timer for the animation frames.
@@ skipping 33 matching lines @@
   float imageDimension = [image_ extent].size.height;
   float xOffset = animationFrame_ * imageDimension;
   NSRect sourceImageRect =
       NSMakeRect(xOffset, 0, imageDimension, imageDimension);
   [image_ drawInRect:[self bounds]
              fromRect:sourceImageRect
             operation:NSCompositeSourceOver
              fraction:1.0];
 }
 
+// Stores the internal representation of the image from |image|. We use
+// CoreImage for speed (though this doesn't seem to help perf issues). We
+// validate that the image is of the appropriate ratio.
+- (void)setImage:(NSImage*)image {
+  // Reset the animation counter so there's no chance we are off the end.
+  animationFrame_ = 0;
+
+  // Ensure that the height divides evenly into the width. Cache the
+  // number of frames in the animation for later.
+  NSSize imageSize = [image size];
+  DCHECK(imageSize.height && imageSize.width);
+  if (!imageSize.height)
+    return;
+  DCHECK((int)imageSize.width % (int)imageSize.height == 0);
+  numFrames_ = (int)imageSize.width / (int)imageSize.height;
+  DCHECK(numFrames_);
+
+  // First check if we have a bitmap image rep and use it, otherwise fall
+  // back to creating one.
+  NSBitmapImageRep* rep = [[image representations] objectAtIndex:0];
+  if (![rep isKindOfClass:[NSBitmapImageRep class]]) {
+    [image lockFocus];
+    NSRect imageRect = NSMakeRect(0, 0, imageSize.width, imageSize.height);
+    rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:imageRect]
+              autorelease];
+    [image unlockFocus];
+  }
+  image_.reset([[CIImage alloc] initWithBitmapImageRep:rep]);
+}
+
 @end