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

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_CELL_H_
   6 #define CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_CELL_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "base/mac/scoped_nsobject.h"
  11 #include "chrome/browser/autocomplete/autocomplete_match.h"
  12
  13 class OmniboxPopupViewMac;
  14
  15 // OmniboxPopupCell overrides how backgrounds are displayed to
  16 // handle hover versus selected.  So long as we're in there, it also
  17 // provides some default initialization.
  18 @interface OmniboxPopupCell : NSButtonCell {
  19  @private
  20   // The popup view parent of this cell.
  21   OmniboxPopupViewMac* parent_;
  22
  23   // The match which will be rendered for this row in omnibox dropdown.
  24   AutocompleteMatch match_;
  25
  26   // NSAttributedString instances for various match components.
  27   base::scoped_nsobject<NSAttributedString> separator_;
  28   base::scoped_nsobject<NSAttributedString> description_;
  29
  30   // NOTE: While |prefix_| is used only for postfix suggestions, it still needs
  31   // to be a member of the class. This allows the |NSAttributedString| instance
  32   // to stay alive between the call to |drawTitle| and the actual paint event
  33   // which accesses the |NSAttributedString| instance.
  34   base::scoped_nsobject<NSAttributedString> prefix_;
  35
  36   // The width of widest match contents in a set of infinite suggestions.
  37   CGFloat maxMatchContentsWidth_;
  38
  39   // The offset at which the infinite suggesiton contents should be displayed.
  40   CGFloat contentsOffset_;
  41 }
  42
  43 - (void)setMatch:(const AutocompleteMatch&)match;
  44
  45 - (void)setMaxMatchContentsWidth:(CGFloat)maxMatchContentsWidth;
  46
  47 - (void)setContentsOffset:(CGFloat)contentsOffset;
  48
  49 // Returns the width of the match contents.
  50 - (CGFloat)getMatchContentsWidth;
  51
  52 // Returns the offset of the start of the contents in the input text for the
  53 // given match. It is costly to compute this offset, so it is computed once and
  54 // shared by all OmniboxPopupCell instances through OmniboxPopupViewMac parent.
  55 + (CGFloat)computeContentsOffset:(const AutocompleteMatch&)match;
  56
  57 @end
  58
  59 #endif  // CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_CELL_H_