[rAC] Allow clickthrough for SuggestionView

chrome/browser/ui/cocoa/autofill/autofill_suggestion_container.mm

 // Copyright 2013 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/ui/cocoa/autofill/autofill_suggestion_container.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/logging.h"
@@ skipping 36 matching lines @@
   CGFloat baseline_;  // The cell's baseline adjustment.
 }
 
 // Adjust the cell's baseline so that the lower edge of the image aligns with
 // the longest descender, not the font baseline
 - (void)adjustBaselineForFont:(NSFont*)font;
 
 @end
 
 
+@interface AutofillSuggestionView : NSView {
+ @private
+  // The main input field - only view not ignoring mouse events.
+  NSView* inputField_;
+}
+
+@property (assign, nonatomic) NSView* inputField;
+
+@end
+
+
+// The suggestion container should ignore any mouse events unless they occur
+// within the bounds of an editable field.
+@implementation AutofillSuggestionView
+
+@synthesize inputField = inputField_;
+
+- (NSView*)hitTest:(NSPoint)point {
+  NSView* hitView = [super hitTest:point];
+  if ([hitView isDescendantOf:inputField_])
+    return hitView;
+
+  return nil;
+}
+
+@end
+
+
 @implementation IconAttachmentCell
 
 - (NSPoint)cellBaselineOffset {
   return NSMakePoint(0.0, baseline_);
 }
 
 // Ensure proper padding between text and icon.
 - (NSSize)cellSize {
   NSSize size = [super cellSize];
   size.width += kAroundTextPadding;
@@ skipping 56 matching lines @@
   [paragraphStyle setLineSpacing:0.5 * [[label_ font] pointSize]];
   [label_ setDefaultParagraphStyle:paragraphStyle];
 
   inputField_.reset([[AutofillTextField alloc] initWithFrame:NSZeroRect]);
   [inputField_ setHidden:YES];
 
   spacer_.reset([[NSBox alloc] initWithFrame:NSZeroRect]);
   [spacer_ setBoxType:NSBoxSeparator];
   [spacer_ setBorderType:NSLineBorder];
 
-  base::scoped_nsobject<NSView> view([[NSView alloc] initWithFrame:NSZeroRect]);
+  base::scoped_nsobject<AutofillSuggestionView> view(
+      [[AutofillSuggestionView alloc] initWithFrame:NSZeroRect]);
   [view setSubviews:
       @[ label_, inputField_, spacer_ ]];
+  [view setInputField:inputField_];
   [self setView:view];
 }
 
 - (void)setSuggestionText:(NSString*)line
                      icon:(NSImage*)icon
                  wrapText:(BOOL)wrapText {
   [label_ setString:@""];
 
   if ([icon size].width) {
     base::scoped_nsobject<IconAttachmentCell> cell(
@@ skipping 98 matching lines @@
     // Due to fixed width, fields are guaranteed to not overlap.
     DCHECK_LE(NSMaxX(labelFrame), NSMinX(inputFieldFrame));
   }
 
   [spacer_ setFrame:spacerFrame];
   [label_ setFrame:labelFrame];
   [[self view] setFrameSize:preferredContainerSize];
 }
 
 @end