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// Copyright 2020 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/utility/layer_util.h"
#include "base/cancelable_callback.h"
#include "base/run_loop.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "base/timer/timer.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/compositor/compositor.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/scoped_animation_duration_scale_mode.h"
#include "ui/compositor/test/test_compositor_host.h"
#include "ui/compositor/test/test_context_factories.h"
#include "ui/gfx/geometry/rect.h"
namespace ash {
namespace {
class LayerUtilTest : public testing::Test {
public:
LayerUtilTest() = default;
LayerUtilTest(const LayerUtilTest&) = delete;
LayerUtilTest& operator=(const LayerUtilTest&) = delete;
~LayerUtilTest() override = default;
// testing::Test:
void SetUp() override {
context_factories_ = std::make_unique<ui::TestContextFactories>(false);
const gfx::Rect bounds(300, 300);
host_.reset(ui::TestCompositorHost::Create(
bounds, context_factories_->GetContextFactory()));
host_->Show();
compositor()->SetRootLayer(&root_);
}
void TearDown() override {
host_.reset();
context_factories_.reset();
}
void Advance(const base::TimeDelta& delta) {
task_environment_.FastForwardBy(delta);
}
void GenerateOneFrame() { compositor()->ScheduleFullRedraw(); }
ui::Compositor* compositor() { return host_->GetCompositor(); }
ui::Layer* root_layer() { return &root_; }
private:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME,
base::test::TaskEnvironment::MainThreadType::UI};
std::unique_ptr<ui::TestContextFactories> context_factories_;
std::unique_ptr<ui::TestCompositorHost> host_;
ui::Layer root_;
};
} // namespace
TEST_F(LayerUtilTest, CopyContentToExistingLayer) {
ui::ScopedAnimationDurationScaleMode non_zero(
ui::ScopedAnimationDurationScaleMode::NORMAL_DURATION);
ui::Layer layer1;
layer1.SetBounds(gfx::Rect(100, 100));
root_layer()->Add(&layer1);
ui::Layer layer2;
layer2.SetBounds(gfx::Rect(100, 100));
root_layer()->Add(&layer2);
{
bool called = false;
base::CancelableOnceCallback<void(ui::Layer**)> cancelable;
cancelable.Reset(base::BindLambdaForTesting([&](ui::Layer** dummy) {
called = true;
*dummy = &layer2;
}));
CopyLayerContentToLayer(&layer1, cancelable.callback());
GenerateOneFrame();
Advance(base::Milliseconds(1000));
EXPECT_TRUE(called);
}
// Test cancel scenario.
{
bool called = false;
base::CancelableOnceCallback<void(ui::Layer**)> cancelable;
cancelable.Reset(base::BindLambdaForTesting([&](ui::Layer** dummy) {
called = true;
*dummy = &layer2;
}));
CopyLayerContentToLayer(&layer1, cancelable.callback());
cancelable.Cancel();
GenerateOneFrame();
Advance(base::Milliseconds(1000));
EXPECT_FALSE(called);
}
}
} // namespace ash
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