[Mac] Eat mouse clicks in the findbar to prevent them from falling through to views below.

BUG=http://crbug.com/22854
TEST=See test case in bug.
Review URL: http://codereview.chromium.org/273041

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@29281 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 56 insertions, 7 deletions

diff --git a/chrome/browser/cocoa/find_bar_view.mm b/chrome/browser/cocoa/find_bar_view.mm
index 259d59d..93b0c0c 100644
--- a/chrome/browser/cocoa/find_bar_view.mm
+++ b/chrome/browser/cocoa/find_bar_view.mm
@@ -4,10 +4,13 @@
 
 #import "chrome/browser/cocoa/find_bar_view.h"
 
+namespace {
+CGFloat kCurveSize = 8;
+}  // end namespace
+
 @implementation FindBarView
 
 - (void)drawRect:(NSRect)rect {
-  CGFloat curveSize = 8;
   // TODO(rohitrao): Make this prettier.
   rect = NSInsetRect([self bounds], 0.5, 0.5);
   rect = NSOffsetRect(rect, 0, 1.0);
@@ -15,17 +18,17 @@
   NSPoint topLeft = NSMakePoint(NSMinX(rect), NSMaxY(rect));
   NSPoint topRight = NSMakePoint(NSMaxX(rect), NSMaxY(rect));
   NSPoint midLeft1 =
-      NSMakePoint(NSMinX(rect) + curveSize, NSMaxY(rect) - curveSize);
+      NSMakePoint(NSMinX(rect) + kCurveSize, NSMaxY(rect) - kCurveSize);
   NSPoint midLeft2 =
-      NSMakePoint(NSMinX(rect) + curveSize, NSMinY(rect) + curveSize);
+      NSMakePoint(NSMinX(rect) + kCurveSize, NSMinY(rect) + kCurveSize);
   NSPoint midRight1 =
-      NSMakePoint(NSMaxX(rect) - curveSize, NSMinY(rect) + curveSize);
+      NSMakePoint(NSMaxX(rect) - kCurveSize, NSMinY(rect) + kCurveSize);
   NSPoint midRight2 =
-      NSMakePoint(NSMaxX(rect) - curveSize, NSMaxY(rect) - curveSize);
+      NSMakePoint(NSMaxX(rect) - kCurveSize, NSMaxY(rect) - kCurveSize);
   NSPoint bottomLeft =
-      NSMakePoint(NSMinX(rect) + (2 * curveSize), NSMinY(rect));
+      NSMakePoint(NSMinX(rect) + (2 * kCurveSize), NSMinY(rect));
   NSPoint bottomRight =
-      NSMakePoint(NSMaxX(rect) - (2 * curveSize), NSMinY(rect));
+      NSMakePoint(NSMaxX(rect) - (2 * kCurveSize), NSMinY(rect));
 
   NSBezierPath* path = [NSBezierPath bezierPath];
   [path moveToPoint:topLeft];
@@ -60,4 +63,50 @@
   [path stroke];
 }
 
+// The findbar is mostly opaque, but has an 8px transparent border on the left
+// and right sides (see |kCurveSize|).  This is an artifact of the way it is
+// drawn.  We override hitTest to return nil for points in this transparent
+// area.
+- (NSView*)hitTest:(NSPoint)point {
+  NSView* hitView = [super hitTest:point];
+  if (hitView == self) {
+    // |rect| is approximately equivalent to the opaque area of the findbar.
+    NSRect rect = NSInsetRect([self bounds], kCurveSize, 0);
+    if (!NSMouseInRect(point, rect, [self isFlipped]))
+      return nil;
+  }
+
+  return hitView;
+}
+
+// Eat all mouse events, to prevent clicks from falling through to views below.
+- (void)mouseDown:(NSEvent *)theEvent {
+}
+
+- (void)rightMouseDown:(NSEvent *)theEvent {
+}
+
+- (void)otherMouseDown:(NSEvent *)theEvent {
+}
+
+- (void)mouseUp:(NSEvent *)theEvent {
+}
+
+- (void)rightMouseUp:(NSEvent *)theEvent {
+}
+
+- (void)otherMouseUp:(NSEvent *)theEvent {
+}
+
+- (void)mouseMoved:(NSEvent *)theEvent {
+}
+
+- (void)mouseDragged:(NSEvent *)theEvent {
+}
+
+- (void)rightMouseDragged:(NSEvent *)theEvent {
+}
+
+- (void)otherMouseDragged:(NSEvent *)theEvent {
+}
 @end