[Mac] Ensure Omnibox text is always right-aligned in RTL

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm

 // Copyright (c) 2012 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/omnibox/omnibox_view_mac.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/ui/cocoa/test/cocoa_profile_test.h"
+#include "chrome/browser/ui/cocoa/test/scoped_force_rtl_mac.h"
 #include "chrome/browser/ui/omnibox/chrome_omnibox_client.h"
 #include "chrome/browser/ui/omnibox/chrome_omnibox_edit_controller.h"
 #include "chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/omnibox/browser/omnibox_popup_model.h"
 #include "components/omnibox/browser/omnibox_popup_view.h"
 #include "components/toolbar/toolbar_model_impl.h"
 #include "content/public/common/content_constants.h"
 #include "testing/platform_test.h"
 #include "ui/gfx/font.h"
@@ skipping 147 matching lines @@
 
   // With popup open verify that pressing up and down arrow works.
   popup_view.set_is_open(true);
   model->set_up_or_down_count(0);
   view.OnDoCommandBySelector(@selector(moveDown:));
   EXPECT_EQ(1, model->up_or_down_count());
   model->set_up_or_down_count(0);
   view.OnDoCommandBySelector(@selector(moveUp:));
   EXPECT_EQ(-1, model->up_or_down_count());
 }
+
+TEST_F(OmniboxViewMacTest, WritingDirectionLTR) {
+  TestingToolbarModelDelegate delegate;
+  ToolbarModelImpl toolbar_model(&delegate, 32 * 1024);
+  TestingOmniboxEditController edit_controller(&toolbar_model);
+  OmniboxViewMac view(&edit_controller, profile(), NULL, NULL);
+
+  // This is deleted by the omnibox view.
+  MockOmniboxEditModel* model =
+      new MockOmniboxEditModel(&view, &edit_controller, profile());
+  MockOmniboxPopupView popup_view;
+  OmniboxPopupModel popup_model(&popup_view, model);
+
+  model->OnSetFocus(true);
+  SetModel(&view, model);
+  view.SetUserText(base::ASCIIToUTF16("foo.com"));
+  model->OnChanged();
+
+  base::scoped_nsobject<NSMutableAttributedString> string(
+      [[NSMutableAttributedString alloc] initWithString:@"foo.com"]);
+  view.ApplyTextStyle(string);
+
+  NSParagraphStyle* paragraphStyle =
+      [string attribute:NSParagraphStyleAttributeName
+                 atIndex:0
+          effectiveRange:NULL];
+  DCHECK(paragraphStyle);
+  EXPECT_EQ(paragraphStyle.alignment, NSLeftTextAlignment);
+  EXPECT_EQ(paragraphStyle.baseWritingDirection, NSWritingDirectionLeftToRight);
+}
+
+TEST_F(OmniboxViewMacTest, WritingDirectionRTL) {
+  cocoa_l10n_util::ScopedForceRTLMac rtl;
+
+  TestingToolbarModelDelegate delegate;
+  ToolbarModelImpl toolbar_model(&delegate, 32 * 1024);
+  TestingOmniboxEditController edit_controller(&toolbar_model);
+  OmniboxViewMac view(&edit_controller, profile(), NULL, NULL);
+
+  // This is deleted by the omnibox view.
+  MockOmniboxEditModel* model =
+      new MockOmniboxEditModel(&view, &edit_controller, profile());
+  MockOmniboxPopupView popup_view;
+  OmniboxPopupModel popup_model(&popup_view, model);
+
+  model->OnSetFocus(true);
+  SetModel(&view, model);
+  view.SetUserText(base::ASCIIToUTF16("foo.com"));
+  model->OnChanged();
+
+  base::scoped_nsobject<NSMutableAttributedString> string(
+      [[NSMutableAttributedString alloc] initWithString:@"foo.com"]);
+  view.ApplyTextStyle(string);
+
+  NSParagraphStyle* paragraphStyle =
+      [string attribute:NSParagraphStyleAttributeName
+                 atIndex:0
+          effectiveRange:NULL];
+  DCHECK(paragraphStyle);
+  EXPECT_EQ(paragraphStyle.alignment, NSRightTextAlignment);
+  EXPECT_EQ(paragraphStyle.baseWritingDirection, NSWritingDirectionLeftToRight);
+}