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// Copyright 2014 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/layers/solid_color_scrollbar_layer_impl.h"
#include "cc/test/layer_test_common.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
TEST(SolidColorScrollbarLayerImplTest, Occlusion) {
gfx::Size layer_size(10, 1000);
gfx::Size viewport_size(1000, 1000);
LayerTestCommon::LayerImplTest impl;
ScrollbarOrientation orientation = VERTICAL;
int thumb_thickness = layer_size.width();
int track_start = 0;
bool is_left_side_vertical_scrollbar = false;
bool is_overlay = false;
SolidColorScrollbarLayerImpl* scrollbar_layer_impl =
impl.AddChildToRoot<SolidColorScrollbarLayerImpl>(
orientation,
thumb_thickness,
track_start,
is_left_side_vertical_scrollbar,
is_overlay);
scrollbar_layer_impl->SetBounds(layer_size);
scrollbar_layer_impl->SetContentBounds(layer_size);
scrollbar_layer_impl->SetDrawsContent(true);
scrollbar_layer_impl->SetCurrentPos(100.f / 4);
scrollbar_layer_impl->SetMaximum(100);
scrollbar_layer_impl->SetVisibleToTotalLengthRatio(1.f / 2);
// SolidColorScrollbarLayers construct with opacity = 0.f, so override.
scrollbar_layer_impl->SetOpacity(1.f);
impl.CalcDrawProps(viewport_size);
gfx::Rect thumb_rect = scrollbar_layer_impl->ComputeThumbQuadRect();
EXPECT_EQ(gfx::Rect(0, 500 / 4, 10, layer_size.height() / 2).ToString(),
thumb_rect.ToString());
{
SCOPED_TRACE("No occlusion");
gfx::Rect occluded;
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), thumb_rect);
EXPECT_EQ(1u, impl.quad_list().size());
}
{
SCOPED_TRACE("Full occlusion");
gfx::Rect occluded(scrollbar_layer_impl->visible_content_rect());
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
EXPECT_EQ(impl.quad_list().size(), 0u);
}
{
SCOPED_TRACE("Partial occlusion");
gfx::Rect occluded(0, 0, 5, 1000);
impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
size_t partially_occluded_count = 0;
LayerTestCommon::VerifyQuadsCoverRectWithOcclusion(
impl.quad_list(), thumb_rect, occluded, &partially_occluded_count);
// The layer outputs one quad, which is partially occluded.
EXPECT_EQ(1u, impl.quad_list().size());
EXPECT_EQ(1u, partially_occluded_count);
}
}
} // namespace
} // namespace cc
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