Use the source display's pixel size as a mirror window's size.

ash/display/mirror_window_controller_unittest.cc

 // Copyright (c) 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.
 
 #include "ash/display/mirror_window_controller.h"
 
 #include "ash/display/display_manager.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/mirror_window_test_api.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/event_generator.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/aura/test/test_windows.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
 
 namespace ash {
 namespace internal {
 
 typedef test::AshTestBase MirrorWindowControllerTest;
 
 #if defined(OS_WIN)
 // Software mirroring does not work on win.
-#define MAYBE_MirrorCursor DISABLED_MirrorCursor
+#define MAYBE_MirrorCursorBasic DISABLED_MirrorCursorBasic
+#define MAYBE_MirrorCursorLocations DISABLED_MirrorCursorLocations
 #else
-#define MAYBE_MirrorCursor MirrorCursor
+#define MAYBE_MirrorCursorBasic MirrorCursorBasic
+#define MAYBE_MirrorCursorLocations MirrorCursorLocations
 #endif
 
-TEST_F(MirrorWindowControllerTest, MAYBE_MirrorCursor) {
+TEST_F(MirrorWindowControllerTest, MAYBE_MirrorCursorBasic) {
   test::MirrorWindowTestApi test_api;
   aura::test::TestWindowDelegate test_window_delegate;
   test_window_delegate.set_window_component(HTTOP);
 
   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
   display_manager->SetSoftwareMirroring(true);
   UpdateDisplay("400x400,400x400");
   aura::RootWindow* root = Shell::GetInstance()->GetPrimaryRootWindow();
   scoped_ptr<aura::Window> window(aura::test::CreateTestWindowWithDelegate(
       &test_window_delegate,
       0,
       gfx::Rect(50, 50, 100, 100),
       root));
   window->Show();
   window->SetName("foo");
 
   EXPECT_TRUE(test_api.GetCursorWindow());
   EXPECT_EQ("50,50 100x100", window->bounds().ToString());
 
   aura::test::EventGenerator generator(root);
   generator.MoveMouseTo(10, 10);
 
   // Test if cursor movement is propertly reflected in mirror window.
   gfx::Point hot_point = test_api.GetCursorHotPoint();
   gfx::Point cursor_window_origin =
       test_api.GetCursorWindow()->bounds().origin();
+  EXPECT_EQ("4,4", hot_point.ToString());
   EXPECT_EQ(10 - hot_point.x(), cursor_window_origin.x());
   EXPECT_EQ(10 - hot_point.y(), cursor_window_origin.y());
   EXPECT_EQ(ui::kCursorNull, test_api.GetCurrentCursorType());
   EXPECT_TRUE(test_api.GetCursorWindow()->IsVisible());
 
   // Test if cursor type change is propertly reflected in mirror window.
   generator.MoveMouseTo(100, 100);
   hot_point = test_api.GetCursorHotPoint();
   cursor_window_origin = test_api.GetCursorWindow()->bounds().origin();
   EXPECT_EQ(100 - hot_point.x(), cursor_window_origin.x());
   EXPECT_EQ(100 - hot_point.y(), cursor_window_origin.y());
   EXPECT_EQ(ui::kCursorNorthResize, test_api.GetCurrentCursorType());
 
   // Test if visibility change is propertly reflected in mirror window.
   // A key event hides cursor.
   generator.PressKey(ui::VKEY_A, 0);
   generator.ReleaseKey(ui::VKEY_A, 0);
   EXPECT_FALSE(test_api.GetCursorWindow()->IsVisible());
 
   // Mouse event makes it visible again.
   generator.MoveMouseTo(300, 300);
   hot_point = test_api.GetCursorHotPoint();
   cursor_window_origin = test_api.GetCursorWindow()->bounds().origin();
   EXPECT_EQ(300 - hot_point.x(), cursor_window_origin.x());
   EXPECT_EQ(300 - hot_point.y(), cursor_window_origin.y());
   EXPECT_EQ(ui::kCursorNull, test_api.GetCurrentCursorType());
   EXPECT_TRUE(test_api.GetCursorWindow()->IsVisible());
 }
 
+// Make sure that the mirror cursor's location is same as
+// the source display's host location in the mirror root window's
+// coordinates.
+TEST_F(MirrorWindowControllerTest, MAYBE_MirrorCursorLocations) {
+  test::MirrorWindowTestApi test_api;
+  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
+  display_manager->SetSoftwareMirroring(true);
+
+  // Test with device scale factor.
+  UpdateDisplay("400x600*2,400x600");
+
+  aura::RootWindow* root = Shell::GetInstance()->GetPrimaryRootWindow();
+  aura::test::EventGenerator generator(root);
+  generator.MoveMouseToInHost(10, 20);
+
+  gfx::Point hot_point = test_api.GetCursorHotPoint();
+  EXPECT_EQ("8,9", hot_point.ToString());
+  gfx::Point cursor_window_origin =
+      test_api.GetCursorWindow()->bounds().origin();
+  EXPECT_EQ(10 - hot_point.x(), cursor_window_origin.x());
+  EXPECT_EQ(20 - hot_point.y(), cursor_window_origin.y());
+
+  // Test with ui scale
+  UpdateDisplay("400x600*0.5,400x600");
+  generator.MoveMouseToInHost(20, 30);
+
+  hot_point = test_api.GetCursorHotPoint();
+  EXPECT_EQ("4,4", hot_point.ToString());
+  cursor_window_origin = test_api.GetCursorWindow()->bounds().origin();
+  EXPECT_EQ(20 - hot_point.x(), cursor_window_origin.x());
+  EXPECT_EQ(30 - hot_point.y(), cursor_window_origin.y());
+
+  // Test with rotation
+  UpdateDisplay("400x600/r,400x600");
+  generator.MoveMouseToInHost(30, 40);
+
+  hot_point = test_api.GetCursorHotPoint();
+  EXPECT_EQ("4,4", hot_point.ToString());
+  cursor_window_origin = test_api.GetCursorWindow()->bounds().origin();
+  EXPECT_EQ(30 - hot_point.x(), cursor_window_origin.x());
+  EXPECT_EQ(40 - hot_point.y(), cursor_window_origin.y());
+}
+
 }  // namsspace internal
 }  // namespace ash