Fix positioning of autofill popup on rtl

chrome/browser/ui/autofill/popup_controller_common_unittest.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/ui/autofill/popup_controller_common.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/autofill/test_popup_controller_common.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "ui/gfx/display.h"
@@ skipping 11 matching lines @@
 };
 
 TEST_F(PopupControllerBaseTest, GetPopupBoundsTest) {
   int desired_width = 40;
   int desired_height = 16;
 
   // Set up the visible screen space.
   gfx::Display display(0,
                        gfx::Rect(0, 0, 2 * desired_width, 2 * desired_height));
 
-  // Store the possible element bounds and the popup bounds they should result
-  // in.
-  std::vector<gfx::RectF> element_bounds;
-  std::vector<gfx::Rect> expected_popup_bounds;
+  struct {
+    gfx::RectF element_bounds;
+    gfx::Rect expected_popup_bounds_ltr;
+    // Non-empty only when it differs from the ltr expectation.
+    gfx::Rect expected_popup_bounds_rtl;
+  } test_cases[] = {
+      // The popup grows down and to the end.
+      {gfx::RectF(38, 0, 5, 0),
+       gfx::Rect(38, 0, desired_width, desired_height),
+       gfx::Rect(3, 0, desired_width, desired_height)},
 
-  // The popup grows down and to the right.
-  element_bounds.push_back(gfx::RectF(0, 0, 0, 0));
-  expected_popup_bounds.push_back(
-      gfx::Rect(0, 0, desired_width, desired_height));
+      // The popup grows down and to the left when there's no room on the right.
+      {gfx::RectF(2 * desired_width, 0, 5, 0),
+       gfx::Rect(desired_width, 0, desired_width, desired_height)},
 
-  // The popup grows down and to the left.
-  element_bounds.push_back(gfx::RectF(2 * desired_width, 0, 0, 0));
-  expected_popup_bounds.push_back(
-      gfx::Rect(desired_width, 0, desired_width, desired_height));
+      // The popup grows up and to the right.
+      {gfx::RectF(0, 2 * desired_height, 5, 0),
+       gfx::Rect(0, desired_height, desired_width, desired_height)},
 
-  // The popup grows up and to the right.
-  element_bounds.push_back(gfx::RectF(0, 2 * desired_height, 0, 0));
-  expected_popup_bounds.push_back(
-      gfx::Rect(0, desired_height, desired_width, desired_height));
+      // The popup grows up and to the left.
+      {gfx::RectF(2 * desired_width, 2 * desired_height, 5, 0),
+       gfx::Rect(desired_width, desired_height, desired_width, desired_height)},
 
-  // The popup grows up and to the left.
-  element_bounds.push_back(
-      gfx::RectF(2 * desired_width, 2 * desired_height, 0, 0));
-  expected_popup_bounds.push_back(
-      gfx::Rect(desired_width, desired_height, desired_width, desired_height));
+      // The popup would be partial off the top and left side of the screen.
+      {gfx::RectF(-desired_width / 2, -desired_height / 2, 5, 0),
+       gfx::Rect(0, 0, desired_width, desired_height)},
 
-  // The popup would be partial off the top and left side of the screen.
-  element_bounds.push_back(
-      gfx::RectF(-desired_width / 2, -desired_height / 2, 0, 0));
-  expected_popup_bounds.push_back(
-      gfx::Rect(0, 0, desired_width, desired_height));
+      // The popup would be partially off the bottom and the right side of
+      // the screen.
+      {gfx::RectF(desired_width * 1.5, desired_height * 1.5, 5, 0),
+       gfx::Rect((desired_width * 1.5 + 5 - desired_width),
+                 (desired_height * 1.5 - desired_height), desired_width,
+                 desired_height)},
+  };
 
-  // The popup would be partially off the bottom and the right side of
-  // the screen.
-  element_bounds.push_back(
-      gfx::RectF(desired_width * 1.5, desired_height * 1.5, 0, 0));
-  expected_popup_bounds.push_back(
-      gfx::Rect((desired_width + 1) / 2, (desired_height + 1) / 2,
-                desired_width, desired_height));
-
-  for (size_t i = 0; i < element_bounds.size(); ++i) {
+  for (size_t i = 0; i < arraysize(test_cases); ++i) {
     scoped_ptr<TestPopupControllerCommon> popup_controller(
-        new TestPopupControllerCommon(element_bounds[i]));
+        new TestPopupControllerCommon(test_cases[i].element_bounds,
+                                      base::i18n::LEFT_TO_RIGHT));
     popup_controller->set_display(display);
     gfx::Rect actual_popup_bounds =
         popup_controller->GetPopupBounds(desired_width, desired_height);
+    EXPECT_EQ(test_cases[i].expected_popup_bounds_ltr.ToString(),
+              actual_popup_bounds.ToString())
+        << "Popup bounds failed to match for ltr test " << i;
 
-    EXPECT_EQ(expected_popup_bounds[i].ToString(),
-              actual_popup_bounds.ToString()) <<
-        "Popup bounds failed to match for test " << i;
+    popup_controller.reset(new TestPopupControllerCommon(
+        test_cases[i].element_bounds, base::i18n::RIGHT_TO_LEFT));
+    popup_controller->set_display(display);
+    actual_popup_bounds =
+        popup_controller->GetPopupBounds(desired_width, desired_height);
+    gfx::Rect expected_popup_bounds = test_cases[i].expected_popup_bounds_rtl;
+    if (expected_popup_bounds.IsEmpty())
+      expected_popup_bounds = test_cases[i].expected_popup_bounds_ltr;
+    EXPECT_EQ(expected_popup_bounds.ToString(), actual_popup_bounds.ToString())
+        << "Popup bounds failed to match for rtl test " << i;
   }
 }
 
 }  // namespace autofill