mac: Support "Use Selection for Find" when omnibox is focused.

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm

 // Copyright (c) 2011 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/location_bar/autocomplete_text_field_editor.h"
 
 #include "base/string_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"  // IDC_*
 #include "chrome/browser/ui/browser_list.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.h"
 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
+#import "content/browser/find_pasteboard.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 
 namespace {
 
 // When too much data is put into a single-line text field, things get
 // janky due to the cost of computing the blink rect.  Sometimes users
 // accidentally paste large amounts, so place a limit on what will be
 // accepted.
 //
@@ skipping 440 matching lines @@
 
 - (void)mouseDown:(NSEvent*)theEvent {
   // Close the popup before processing the event.
   AutocompleteTextFieldObserver* observer = [self observer];
   if (observer)
     observer->ClosePopup();
 
   [super mouseDown:theEvent];
 }
 
+- (BOOL)validateMenuItem:(NSMenuItem*)item {
+  if ([item action] == @selector(copyToFindPboard:))
+    return [self selectedRange].length > 0;
+  return YES;

[Avi (use Gerrit), 2011/09/24 11:45:04]

return [super validateMenuItem:item]? Otherwise comment why as that's what would
be expected.

+}
+
+- (void)copyToFindPboard:(id)sender {
+  NSRange selectedRange = [self selectedRange];
+  if (selectedRange.length == 0)
+    return;
+  NSAttributedString* selection =
+      [self attributedSubstringForProposedRange:selectedRange
+                                    actualRange:NULL];
+  if (!selection)
+    return;
+
+  [[FindPasteboard sharedInstance] setFindText:[selection string]];

[Scott Hess - ex-Googler, 2011/09/24 15:37:27]

There are times I find myself not entirely convinced by our pasteboard code ...

+}
+
 @end