ash/wm/screen_dimmer_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ash/wm/screen_dimmer.h"
   6
   7 #include "ash/root_window_controller.h"
   8 #include "ash/shell.h"
   9 #include "ash/test/ash_test_base.h"
  10 #include "base/basictypes.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/aura/window_event_dispatcher.h"
  13 #include "ui/compositor/layer.h"
  14
  15 namespace ash {
  16 namespace test {
  17
  18 class ScreenDimmerTest : public AshTestBase {
  19  public:
  20   ScreenDimmerTest() : dimmer_(NULL) {}
  21   ~ScreenDimmerTest() override {}
  22
  23   void SetUp() override {
  24     AshTestBase::SetUp();
  25     dimmer_ = Shell::GetPrimaryRootWindowController()->screen_dimmer();
  26     test_api_.reset(new ScreenDimmer::TestApi(dimmer_));
  27   }
  28
  29  protected:
  30   ScreenDimmer* dimmer_;  // not owned
  31
  32   scoped_ptr<ScreenDimmer::TestApi> test_api_;
  33
  34  private:
  35   DISALLOW_COPY_AND_ASSIGN(ScreenDimmerTest);
  36 };
  37
  38 TEST_F(ScreenDimmerTest, DimAndUndim) {
  39   // Don't create a layer until we need to.
  40   EXPECT_TRUE(test_api_->layer() == NULL);
  41   dimmer_->SetDimming(false);
  42   EXPECT_TRUE(test_api_->layer() == NULL);
  43
  44   // When we enable dimming, the layer should be created and stacked at the top
  45   // of the root's children.
  46   dimmer_->SetDimming(true);
  47   ASSERT_TRUE(test_api_->layer() != NULL);
  48   ui::Layer* root_layer = Shell::GetPrimaryRootWindow()->layer();
  49   ASSERT_TRUE(!root_layer->children().empty());
  50   EXPECT_EQ(test_api_->layer(), root_layer->children().back());
  51   EXPECT_TRUE(test_api_->layer()->visible());
  52   EXPECT_GT(test_api_->layer()->GetTargetOpacity(), 0.0f);
  53
  54   // When we disable dimming, the layer should be animated back to full
  55   // transparency.
  56   dimmer_->SetDimming(false);
  57   ASSERT_TRUE(test_api_->layer() != NULL);
  58   EXPECT_TRUE(test_api_->layer()->visible());
  59   EXPECT_FLOAT_EQ(0.0f, test_api_->layer()->GetTargetOpacity());
  60 }
  61
  62 TEST_F(ScreenDimmerTest, ResizeLayer) {
  63   // The dimming layer should be initially sized to cover the root window.
  64   dimmer_->SetDimming(true);
  65   ui::Layer* dimming_layer = test_api_->layer();
  66   ASSERT_TRUE(dimming_layer != NULL);
  67   ui::Layer* root_layer = Shell::GetPrimaryRootWindow()->layer();
  68   EXPECT_EQ(gfx::Rect(root_layer->bounds().size()).ToString(),
  69             dimming_layer->bounds().ToString());
  70
  71   // When we resize the root window, the dimming layer should be resized to
  72   // match.
  73   gfx::Rect kNewBounds(400, 300);
  74   Shell::GetPrimaryRootWindow()->GetHost()->SetBounds(kNewBounds);
  75   EXPECT_EQ(kNewBounds.ToString(), dimming_layer->bounds().ToString());
  76 }
  77
  78 }  // namespace test
  79 }  // namespace ash