[AiS] changing mac omnibox suggestions form NSMatrix to NSTableView

chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_CELL_H_
 #define CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_CELL_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "components/omnibox/autocomplete_match.h"
 
 class OmniboxPopupViewMac;
+@class OmniboxPopupCell;
 
-// OmniboxPopupCell overrides how backgrounds are displayed to
-// handle hover versus selected.  So long as we're in there, it also
-// provides some default initialization.
-@interface OmniboxPopupCell : NSButtonCell {
+@interface OmniboxPopupCellData : NSObject {
  @private
-  // The popup view parent of this cell.
-  OmniboxPopupViewMac* parent_;
-
-  // The match which will be rendered for this row in omnibox dropdown.
-  AutocompleteMatch match_;
-
   // NSAttributedString instances for various match components.
+  base::scoped_nsobject<NSAttributedString> contents_;
   base::scoped_nsobject<NSAttributedString> separator_;
   base::scoped_nsobject<NSAttributedString> description_;
 
   // NOTE: While |prefix_| is used only for postfix suggestions, it still needs
   // to be a member of the class. This allows the |NSAttributedString| instance
   // to stay alive between the call to |drawTitle| and the actual paint event
   // which accesses the |NSAttributedString| instance.
   base::scoped_nsobject<NSAttributedString> prefix_;
 
+  base::scoped_nsobject<NSImage> image_;
+
   // The width of widest match contents in a set of infinite suggestions.
   CGFloat maxMatchContentsWidth_;
 
   // The offset at which the infinite suggestion contents should be displayed.
   CGFloat contentsOffset_;
+
+  bool isContentsRTL_;
+  AutocompleteMatch::Type matchType_;
 }
 
-- (void)setMatch:(const AutocompleteMatch&)match;
+- (id)initWithMatch:(const AutocompleteMatch&)match image:(NSImage*)image;

[Scott Hess - ex-Googler, 2015/05/21 20:40:26]

Instead of (id) use (instancetype).  The reason is subtle, but the gist of it is
that (id) is entirely unchecked, it can be any Objective-C object including
objects which are instances from a different class hierarchy, while
(instancetype) is closer to the intended isa relationship.

I think this advice is only applicable to designated initializers.

[dschuyler, 2015/05/26 18:40:19]

Done.

+
+- (void)drawMatchWithFrame:(NSRect)cellFrame
+                    inCell:(OmniboxPopupCell*)cell
+                    inView:(NSView*)controlView;

[Scott Hess - ex-Googler, 2015/05/21 20:40:26]

This can probably be -drawWithFrame:inCell:inView:.  There's not another kind of
draw to distinguish things from, and none of the other instance information is
expressed into the method signature.

[dschuyler, 2015/05/26 18:40:19]

Done.

+
+- (CGFloat)rowHeight;

[Scott Hess - ex-Googler, 2015/05/21 20:40:26]

This one could use a comment, since there's not an obvious instance-variable
comment to refer to.

 
 - (void)setMaxMatchContentsWidth:(CGFloat)maxMatchContentsWidth;
 
 - (void)setContentsOffset:(CGFloat)contentsOffset;
 
 // Returns the width of the match contents.
 - (CGFloat)getMatchContentsWidth;
 
+@end
+
+// OmniboxPopupCell overrides how backgrounds are displayed to
+// handle hover versus selected.

[Scott Hess - ex-Googler, 2015/05/21 20:40:26]

This comment seems inadequate, since it does more than that.

[dschuyler, 2015/05/26 18:40:19]

Done.

+@interface OmniboxPopupCell : NSCell {
+}
+
 // Returns the offset of the start of the contents in the input text for the
 // given match. It is costly to compute this offset, so it is computed once and
 // shared by all OmniboxPopupCell instances through OmniboxPopupViewMac parent.
 + (CGFloat)computeContentsOffset:(const AutocompleteMatch&)match;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_CELL_H_