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// Copyright 2019 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 "third_party/blink/renderer/core/paint/image_element_timing.h"
#include "third_party/blink/renderer/core/frame/frame_test_helpers.h"
#include "third_party/blink/renderer/core/frame/web_local_frame_impl.h"
#include "third_party/blink/renderer/core/layout/layout_image.h"
#include "third_party/blink/renderer/core/layout/svg/layout_svg_image.h"
#include "third_party/blink/renderer/core/loader/resource/image_resource_content.h"
#include "third_party/blink/renderer/platform/graphics/static_bitmap_image.h"
#include "third_party/blink/renderer/platform/testing/url_test_helpers.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkSurface.h"
namespace blink {
namespace internal {
extern bool IsExplicitlyRegisteredForTiming(const LayoutObject* layout_object);
}
class ImageElementTimingTest : public testing::Test {
protected:
void SetUp() override {
web_view_helper_.Initialize();
frame_test_helpers::LoadFrame(
web_view_helper_.GetWebView()->MainFrameImpl(), "about:blank");
WebURL base_url_ = url_test_helpers::ToKURL("http://www.test.com/");
// Enable compositing on the page.
web_view_helper_.GetWebView()
->GetPage()
->GetSettings()
.SetAcceleratedCompositingEnabled(true);
GetDoc()->View()->SetParentVisible(true);
GetDoc()->View()->SetSelfVisible(true);
}
// Sets an image resource for the LayoutImage with the given |id| and return
// the LayoutImage.
LayoutImage* SetImageResource(const char* id, int width, int height) {
ImageResourceContent* content = CreateImageForTest(width, height);
auto* layout_image = ToLayoutImage(GetLayoutObjectById(id));
layout_image->ImageResource()->SetImageResource(content);
return layout_image;
}
// Similar to above but for a LayoutSVGImage.
LayoutSVGImage* SetSVGImageResource(const char* id, int width, int height) {
ImageResourceContent* content = CreateImageForTest(width, height);
auto* layout_image = ToLayoutSVGImage(GetLayoutObjectById(id));
layout_image->ImageResource()->SetImageResource(content);
return layout_image;
}
bool ImagesNotifiedContains(
const std::pair<const LayoutObject*, const ImageResourceContent*>&
record_id) {
return ImageElementTiming::From(*GetDoc()->domWindow())
.images_notified_.Contains(record_id);
}
unsigned ImagesNotifiedSize() {
return ImageElementTiming::From(*GetDoc()->domWindow())
.images_notified_.size();
}
Document* GetDoc() {
return web_view_helper_.GetWebView()
->MainFrameImpl()
->GetFrame()
->GetDocument();
}
LayoutObject* GetLayoutObjectById(const char* id) {
return GetDoc()->getElementById(id)->GetLayoutObject();
}
void UpdateAllLifecyclePhases() {
web_view_helper_.GetWebView()
->MainFrameImpl()
->GetFrame()
->View()
->UpdateAllLifecyclePhases(
DocumentLifecycle::LifecycleUpdateReason::kTest);
}
frame_test_helpers::WebViewHelper web_view_helper_;
WebURL base_url_;
private:
ImageResourceContent* CreateImageForTest(int width, int height) {
sk_sp<SkColorSpace> src_rgb_color_space = SkColorSpace::MakeSRGB();
SkImageInfo raster_image_info =
SkImageInfo::MakeN32Premul(width, height, src_rgb_color_space);
sk_sp<SkSurface> surface(SkSurface::MakeRaster(raster_image_info));
sk_sp<SkImage> image = surface->makeImageSnapshot();
ImageResourceContent* original_image_resource =
ImageResourceContent::CreateLoaded(
StaticBitmapImage::Create(image).get());
return original_image_resource;
}
};
TEST_F(ImageElementTimingTest, TestIsExplicitlyRegisteredForTiming) {
frame_test_helpers::LoadHTMLString(
web_view_helper_.GetWebView()->MainFrameImpl(), R"HTML(
<img id="missing-attribute" style='width: 100px; height: 100px;'/>
<img id="unset-attribute" elementtiming style='width: 100px; height: 100px;'/>
<img id="empty-attribute" elementtiming="" style='width: 100px; height: 100px;'/>
<img id="valid-attribute" elementtiming="valid-id" style='width: 100px; height: 100px;'/>
)HTML",
base_url_);
LayoutObject* without_attribute = GetLayoutObjectById("missing-attribute");
bool actual = internal::IsExplicitlyRegisteredForTiming(without_attribute);
EXPECT_FALSE(actual) << "Nodes without an 'elementtiming' attribute should "
"not be explicitly registered.";
LayoutObject* with_undefined_attribute =
GetLayoutObjectById("unset-attribute");
actual = internal::IsExplicitlyRegisteredForTiming(with_undefined_attribute);
EXPECT_FALSE(actual) << "Nodes with undefined 'elementtiming' attribute "
"should not be explicitly registered.";
LayoutObject* with_empty_attribute = GetLayoutObjectById("empty-attribute");
actual = internal::IsExplicitlyRegisteredForTiming(with_empty_attribute);
EXPECT_FALSE(actual) << "Nodes with an empty 'elementtiming' attribute "
"should not be explicitly registered.";
LayoutObject* with_explicit_element_timing =
GetLayoutObjectById("valid-attribute");
actual =
internal::IsExplicitlyRegisteredForTiming(with_explicit_element_timing);
EXPECT_TRUE(actual) << "Nodes with a non-empty 'elementtiming' attribute "
"should be explicitly registered.";
}
TEST_F(ImageElementTimingTest, IgnoresUnmarkedElement) {
// Tests that, if the 'elementtiming' attribute is missing, the element isn't
// considered by ImageElementTiming.
frame_test_helpers::LoadHTMLString(
web_view_helper_.GetWebView()->MainFrameImpl(), R"HTML(
<img id="target" style='width: 100px; height: 100px;'/>
)HTML",
base_url_);
LayoutImage* layout_image = SetImageResource("target", 5, 5);
ASSERT_TRUE(layout_image);
UpdateAllLifecyclePhases();
EXPECT_FALSE(ImagesNotifiedContains(
std::make_pair(layout_image, layout_image->CachedImage())));
}
TEST_F(ImageElementTimingTest, ImageInsideSVG) {
frame_test_helpers::LoadHTMLString(
web_view_helper_.GetWebView()->MainFrameImpl(), R"HTML(
<svg mask="url(#mask)">
<mask id="mask">
<foreignObject width="100" height="100">
<img elementtiming="image-inside-svg" id="target" style='width: 100px; height: 100px;'/>
</foreignObject>
</mask>
<rect width="100" height="100" fill="green"/>
</svg>
)HTML",
base_url_);
LayoutImage* layout_image = SetImageResource("target", 5, 5);
ASSERT_TRUE(layout_image);
UpdateAllLifecyclePhases();
// |layout_image| should have had its paint notified to ImageElementTiming.
EXPECT_TRUE(ImagesNotifiedContains(
std::make_pair(layout_image, layout_image->CachedImage())));
}
TEST_F(ImageElementTimingTest, ImageRemoved) {
frame_test_helpers::LoadHTMLString(
web_view_helper_.GetWebView()->MainFrameImpl(), R"HTML(
<img elementtiming="will-be-removed" id="target" style='width: 100px; height: 100px;'/>
)HTML",
base_url_);
LayoutImage* layout_image = SetImageResource("target", 5, 5);
ASSERT_TRUE(layout_image);
UpdateAllLifecyclePhases();
EXPECT_TRUE(ImagesNotifiedContains(
std::make_pair(layout_image, layout_image->CachedImage())));
GetDoc()->getElementById("target")->remove();
// |layout_image| should no longer be part of |images_notified| since it will
// be destroyed.
EXPECT_EQ(ImagesNotifiedSize(), 0u);
}
TEST_F(ImageElementTimingTest, SVGImageRemoved) {
frame_test_helpers::LoadHTMLString(
web_view_helper_.GetWebView()->MainFrameImpl(), R"HTML(
<svg>
<image elementtiming="svg-will-be-removed" id="target" style='width: 100px; height: 100px;'/>
</svg>
)HTML",
base_url_);
LayoutSVGImage* layout_image = SetSVGImageResource("target", 5, 5);
ASSERT_TRUE(layout_image);
UpdateAllLifecyclePhases();
EXPECT_TRUE(ImagesNotifiedContains(std::make_pair(
layout_image, layout_image->ImageResource()->CachedImage())));
GetDoc()->getElementById("target")->remove();
// |layout_image| should no longer be part of |images_notified| since it will
// be destroyed.
EXPECT_EQ(ImagesNotifiedSize(), 0u);
}
TEST_F(ImageElementTimingTest, BackgroundImageRemoved) {
frame_test_helpers::LoadHTMLString(
web_view_helper_.GetWebView()->MainFrameImpl(), R"HTML(
<style>
#target {
width: 100px;
height: 100px;
background: url(data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==);
}
</style>
<div elementtiming="time-my-background-image" id="target"></div>
)HTML",
base_url_);
LayoutObject* object = GetLayoutObjectById("target");
ImageResourceContent* content =
object->Style()->BackgroundLayers().GetImage()->CachedImage();
UpdateAllLifecyclePhases();
EXPECT_EQ(ImagesNotifiedSize(), 1u);
EXPECT_TRUE(ImagesNotifiedContains(std::make_pair(object, content)));
GetDoc()->getElementById("target")->remove();
EXPECT_EQ(ImagesNotifiedSize(), 0u);
}
} // namespace blink
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