Make power button controller restore to original transformation on the layer.

ash/wm/power_button_controller_unittest.cc

 // 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.
 
 #include "ash/wm/power_button_controller.h"
 
 #include "ash/shell.h"
 #include "ash/test/aura_shell_test_base.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "ui/aura/root_window.h"
+#include "ui/aura/window.h"
 
 namespace ash {
 namespace test {
 
 // Fake implementation of PowerButtonControllerDelegate that just logs requests
 // to lock the screen and shut down the device.
 class TestPowerButtonControllerDelegate : public PowerButtonControllerDelegate {
  public:
   TestPowerButtonControllerDelegate()
       : num_lock_requests_(0),
@@ skipping 243 matching lines @@
   // Notify that the screen has been unlocked.  We should show the
   // non-screen-locker windows and hide the background layer.
   controller_->OnLockStateChange(false);
   EXPECT_TRUE(
       test_api_->ContainerGroupIsAnimated(
           PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
           PowerButtonController::ANIMATION_RESTORE));
   EXPECT_FALSE(test_api_->BackgroundLayerIsVisible());
 }
 
+// Test that we restore transformation that are non empty.

[Daniel Erat, 2012/02/15 05:50:03]

s/transformation/transformations/

[alicet1, 2012/02/15 20:48:53]

Done.

+TEST_F(PowerButtonControllerTest, LockAndUnlockTransformed) {
+  controller_->set_has_legacy_power_button_for_test(false);
+  controller_->OnLoginStateChange(true /*logged_in*/, false /*is_guest*/);
+  controller_->OnLockStateChange(false);
+
+  // Get current transformation on the containers.
+  aura::Window::Windows windows;
+  test_api_->GetContainerWindows(
+          PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
+          &windows);
+
+  // Set a random transform to each container layer.
+  ui::Transform expected_transform;
+  expected_transform.ConcatTranslate(180, 180);
+  for (aura::Window::Windows::iterator it = windows.begin();
+       it != windows.end();
+       ++it) {
+    (*it)->layer()->SetTransform(expected_transform);
+  }
+
+  // Press the power button and check that the lock timer is started and that we
+  // start scaling the non-screen-locker containers.
+  controller_->OnPowerButtonEvent(true, base::TimeTicks::Now());
+  EXPECT_TRUE(test_api_->lock_timer_is_running());
+  EXPECT_FALSE(test_api_->shutdown_timer_is_running());
+  EXPECT_TRUE(
+      test_api_->ContainerGroupIsAnimated(
+          PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
+          PowerButtonController::ANIMATION_SLOW_CLOSE));
+
+  // Check current transformation is different than before.
+  windows.clear();
+  test_api_->GetContainerWindows(
+          PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
+          &windows);
+  for (aura::Window::Windows::iterator it = windows.begin();
+       it != windows.end();
+       ++it) {
+    EXPECT_FALSE(expected_transform == (*it)->layer()->GetTargetTransform());

[Daniel Erat, 2012/02/15 05:50:03]

EXPECT_NE?

[alicet1, 2012/02/15 20:48:53]

Done.

+  }
+
+  // Release the button before the lock timer fires.
+  controller_->OnPowerButtonEvent(false, base::TimeTicks::Now());
+  EXPECT_FALSE(test_api_->lock_timer_is_running());
+  EXPECT_TRUE(
+      test_api_->ContainerGroupIsAnimated(
+          PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
+          PowerButtonController::ANIMATION_UNDO_SLOW_CLOSE));
+
+  // Get current transformation on the containers to compare,
+  // it shouldn't have changed.
+  windows.clear();
+  test_api_->GetContainerWindows(
+          PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
+          &windows);
+  for (aura::Window::Windows::iterator it = windows.begin();
+       it != windows.end();
+       ++it) {
+    EXPECT_EQ(expected_transform, (*it)->layer()->GetTargetTransform());
+  }
+}
+
 // Hold the power button down from the unlocked state to eventual shutdown.
 TEST_F(PowerButtonControllerTest, LockToShutdown) {
   controller_->set_has_legacy_power_button_for_test(false);
   controller_->OnLoginStateChange(true /*logged_in*/, false /*is_guest*/);
   controller_->OnLockStateChange(false);
 
   // Hold the power button and lock the screen.
   controller_->OnPowerButtonEvent(true, base::TimeTicks::Now());
   EXPECT_TRUE(test_api_->lock_timer_is_running());
   test_api_->trigger_lock_timeout();
@@ skipping 174 matching lines @@
   controller_->OnStartingLock();
   EXPECT_TRUE(
       test_api_->ContainerGroupIsAnimated(
           PowerButtonController::ALL_BUT_SCREEN_LOCKER_AND_RELATED_CONTAINERS,
           PowerButtonController::ANIMATION_FAST_CLOSE));
   EXPECT_TRUE(test_api_->BackgroundLayerIsVisible());
 }
 
 }  // namespace test
 }  // namespace ash