Update zoom/close/miniaturize button based on cursor location after the window

has been moved.

BUG=27388
TEST=Click the zoom button on a browser window. Make sure the '+' disappears.

Review URL: http://codereview.chromium.org/384054

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31712 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 0 deletions

diff --git a/chrome/browser/cocoa/chrome_browser_window.mm b/chrome/browser/cocoa/chrome_browser_window.mm
index 94a169b..f9d0722 100644
--- a/chrome/browser/cocoa/chrome_browser_window.mm
+++ b/chrome/browser/cocoa/chrome_browser_window.mm
@@ -222,6 +222,18 @@ namespace {
                                        owner:self
                                     userInfo:nil]);
     [frameView addTrackingArea:widgetTrackingArea_];
+
+    // Check to see if the cursor is still in trackingRect.
+    NSPoint point = [self mouseLocationOutsideOfEventStream];
+    point = [[self contentView] convertPoint:point fromView:nil];
+    BOOL newEntered = NSPointInRect (point, trackingRect);
+    if (newEntered != entered_) {
+      // Buttons have moved, so update button state.
+      entered_ = newEntered;
+      [closeButton_ setNeedsDisplay];
+      [zoomButton_ setNeedsDisplay];
+      [miniaturizeButton_ setNeedsDisplay];
+    }
   }
 }