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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/wm/screen_dimmer.h"
#include <memory>
#include "ash/root_window_controller.h"
#include "ash/shell.h"
#include "ash/test/ash_test_base.h"
#include "ash/window_user_data.h"
#include "ash/wm/window_dimmer.h"
#include "base/ranges/algorithm.h"
#include "ui/aura/test/test_windows.h"
#include "ui/compositor/layer.h"
namespace ash {
class ScreenDimmerTest : public AshTestBase {
public:
ScreenDimmerTest() = default;
ScreenDimmerTest(const ScreenDimmerTest&) = delete;
ScreenDimmerTest& operator=(const ScreenDimmerTest&) = delete;
~ScreenDimmerTest() override = default;
void SetUp() override {
AshTestBase::SetUp();
dimmer_ = std::make_unique<ScreenDimmer>();
}
void TearDown() override {
dimmer_.reset();
AshTestBase::TearDown();
}
aura::Window* GetDimWindow() {
WindowDimmer* window_dimmer =
dimmer_->window_dimmers_->Get(Shell::GetPrimaryRootWindow());
return window_dimmer ? window_dimmer->window() : nullptr;
}
ui::Layer* GetDimWindowLayer() {
aura::Window* window = GetDimWindow();
return window ? window->layer() : nullptr;
}
protected:
std::unique_ptr<ScreenDimmer> dimmer_;
};
TEST_F(ScreenDimmerTest, DimAndUndim) {
// Don't create a layer until we need to.
EXPECT_EQ(nullptr, GetDimWindowLayer());
dimmer_->SetDimming(false);
EXPECT_EQ(nullptr, GetDimWindowLayer());
// When we enable dimming, the layer should be created and stacked at the top
// of the root's children.
dimmer_->SetDimming(true);
ASSERT_NE(nullptr, GetDimWindowLayer());
ui::Layer* root_layer = Shell::GetPrimaryRootWindow()->layer();
ASSERT_TRUE(!root_layer->children().empty());
EXPECT_EQ(GetDimWindowLayer(), root_layer->children().back());
EXPECT_TRUE(GetDimWindowLayer()->visible());
EXPECT_GT(GetDimWindowLayer()->GetTargetOpacity(), 0.0f);
// When we disable dimming, the layer should be removed.
dimmer_->SetDimming(false);
ASSERT_EQ(nullptr, GetDimWindowLayer());
}
TEST_F(ScreenDimmerTest, ResizeLayer) {
// The dimming layer should be initially sized to cover the root window.
dimmer_->SetDimming(true);
ui::Layer* dimming_layer = GetDimWindowLayer();
ASSERT_TRUE(dimming_layer != nullptr);
ui::Layer* root_layer = Shell::GetPrimaryRootWindow()->layer();
EXPECT_EQ(gfx::Rect(root_layer->bounds().size()).ToString(),
dimming_layer->bounds().ToString());
// When we resize the root window, the dimming layer should be resized to
// match.
gfx::Rect kNewBounds(400, 300);
Shell::GetPrimaryRootWindow()->GetHost()->SetBoundsInPixels(kNewBounds);
EXPECT_EQ(kNewBounds.ToString(), dimming_layer->bounds().ToString());
}
TEST_F(ScreenDimmerTest, DimAtBottom) {
aura::Window* root_window = Shell::GetPrimaryRootWindow();
std::unique_ptr<aura::Window> window(
aura::test::CreateTestWindowWithId(1, root_window));
dimmer_->SetDimming(true);
std::vector<aura::Window*>::const_iterator dim_iter =
base::ranges::find(root_window->children(), GetDimWindow());
ASSERT_TRUE(dim_iter != root_window->children().end());
// Dim layer is at top.
EXPECT_EQ(*dim_iter, *root_window->children().rbegin());
dimmer_->SetDimming(false);
dimmer_->set_at_bottom_for_testing(true);
dimmer_->SetDimming(true);
dim_iter = base::ranges::find(root_window->children(), GetDimWindow());
ASSERT_TRUE(dim_iter != root_window->children().end());
// Dom layer is at the bottom.
EXPECT_EQ(*dim_iter, *root_window->children().begin());
}
// See description above TEST_F for details.
class ScreenDimmerShellDestructionTest : public AshTestBase {
public:
ScreenDimmerShellDestructionTest() = default;
ScreenDimmerShellDestructionTest(const ScreenDimmerShellDestructionTest&) =
delete;
ScreenDimmerShellDestructionTest& operator=(
const ScreenDimmerShellDestructionTest&) = delete;
~ScreenDimmerShellDestructionTest() override = default;
void TearDown() override {
ScreenDimmer screen_dimmer;
AshTestBase::TearDown();
// ScreenDimmer is destroyed *after* the shell.
}
};
// This test verifies ScreenDimmer can be destroyed after the shell. The
// interesting part of this test is in TearDown(), which creates a ScreenDimmer
// that is deleted after Shell.
TEST_F(ScreenDimmerShellDestructionTest, DontCrashIfScreenDimmerOutlivesShell) {
}
} // namespace ash
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