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// Copyright 2015 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 "cc/input/scroll_state.h"
#include "cc/layers/layer_impl.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_impl.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
class ScrollStateTest : public testing::Test {};
TEST_F(ScrollStateTest, ConsumeDeltaNative) {
const float delta_x = 12.3f;
const float delta_y = 3.9f;
const float delta_x_to_consume = 1.2f;
const float delta_y_to_consume = 2.3f;
ScrollStateData scroll_state_data;
scroll_state_data.delta_x = delta_x;
scroll_state_data.delta_y = delta_y;
ScrollState scroll_state(scroll_state_data);
EXPECT_FLOAT_EQ(delta_x, scroll_state.delta_x());
EXPECT_FLOAT_EQ(delta_y, scroll_state.delta_y());
EXPECT_FALSE(scroll_state.delta_consumed_for_scroll_sequence());
EXPECT_FALSE(scroll_state.FullyConsumed());
scroll_state.ConsumeDelta(0, 0);
EXPECT_FLOAT_EQ(delta_x, scroll_state.delta_x());
EXPECT_FLOAT_EQ(delta_y, scroll_state.delta_y());
EXPECT_FALSE(scroll_state.delta_consumed_for_scroll_sequence());
EXPECT_FALSE(scroll_state.FullyConsumed());
scroll_state.ConsumeDelta(delta_x_to_consume, 0);
EXPECT_FLOAT_EQ(delta_x - delta_x_to_consume, scroll_state.delta_x());
EXPECT_FLOAT_EQ(delta_y, scroll_state.delta_y());
EXPECT_TRUE(scroll_state.delta_consumed_for_scroll_sequence());
EXPECT_FALSE(scroll_state.FullyConsumed());
scroll_state.ConsumeDelta(0, delta_y_to_consume);
EXPECT_FLOAT_EQ(delta_x - delta_x_to_consume, scroll_state.delta_x());
EXPECT_FLOAT_EQ(delta_y - delta_y_to_consume, scroll_state.delta_y());
EXPECT_TRUE(scroll_state.delta_consumed_for_scroll_sequence());
EXPECT_FALSE(scroll_state.FullyConsumed());
scroll_state.ConsumeDelta(scroll_state.delta_x(), scroll_state.delta_y());
EXPECT_TRUE(scroll_state.delta_consumed_for_scroll_sequence());
EXPECT_TRUE(scroll_state.FullyConsumed());
}
TEST_F(ScrollStateTest, CurrentNativeScrollingScrollable) {
ScrollStateData scroll_state_data;
ScrollState scroll_state(scroll_state_data);
FakeImplTaskRunnerProvider task_runner_provider;
TestSharedBitmapManager shared_bitmap_manager;
TestTaskGraphRunner task_graph_runner;
FakeLayerTreeHostImpl host_impl(&task_runner_provider, &shared_bitmap_manager,
&task_graph_runner);
scoped_ptr<LayerImpl> layer_impl =
LayerImpl::Create(host_impl.active_tree(), 1);
ScrollNode* scroll_node =
host_impl.active_tree()->property_trees()->scroll_tree.Node(
layer_impl->scroll_tree_index());
scroll_state.set_current_native_scrolling_node(scroll_node);
EXPECT_EQ(scroll_node, scroll_state.current_native_scrolling_node());
}
TEST_F(ScrollStateTest, FullyConsumed) {
ScrollStateData scroll_state_data;
scroll_state_data.delta_x = 1;
scroll_state_data.delta_y = 3;
ScrollState scroll_state(scroll_state_data);
EXPECT_FALSE(scroll_state.FullyConsumed());
scroll_state.ConsumeDelta(1, 3);
EXPECT_TRUE(scroll_state.FullyConsumed());
}
} // namespace cc
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