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// Copyright 2020 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/modules/delegated_ink/delegated_ink_trail_presenter.h"
#include "components/viz/common/delegated_ink_metadata.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_pointer_event_init.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_ink_trail_style.h"
#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/events/pointer_event.h"
#include "third_party/blink/renderer/core/html/html_iframe_element.h"
#include "third_party/blink/renderer/core/paint/paint_layer_scrollable_area.h"
#include "third_party/blink/renderer/core/testing/sim/sim_request.h"
#include "third_party/blink/renderer/core/testing/sim/sim_test.h"
namespace blink {
namespace {
class TestDelegatedInkMetadata {
public:
explicit TestDelegatedInkMetadata(viz::DelegatedInkMetadata* metadata)
: point_(metadata->point()),
color_(metadata->color()),
diameter_(metadata->diameter()),
area_(metadata->presentation_area()) {}
explicit TestDelegatedInkMetadata(gfx::RectF area,
float device_pixel_ratio = 1.0)
: area_(area) {
area_.Scale(device_pixel_ratio);
}
void ExpectEqual(TestDelegatedInkMetadata actual) const {
// LayoutUnits cast floats to ints, causing the actual point and area to be
// off a small amount from what is expected.
EXPECT_NEAR(point_.x(), actual.point_.x(), LayoutUnit::Epsilon());
EXPECT_NEAR(point_.y(), actual.point_.y(), LayoutUnit::Epsilon());
EXPECT_EQ(color_, actual.color_);
EXPECT_EQ(diameter_, actual.diameter_);
EXPECT_NEAR(area_.x(), actual.area_.x(), LayoutUnit::Epsilon());
EXPECT_NEAR(area_.y(), actual.area_.y(), LayoutUnit::Epsilon());
EXPECT_NEAR(area_.width(), actual.area_.width(), LayoutUnit::Epsilon());
EXPECT_NEAR(area_.height(), actual.area_.height(), LayoutUnit::Epsilon());
}
void SetPoint(gfx::PointF pt) { point_ = pt; }
void SetColor(SkColor color) { color_ = color; }
void SetDiameter(double diameter) { diameter_ = diameter; }
void SetArea(gfx::RectF area) { area_ = area; }
private:
gfx::PointF point_;
SkColor color_;
double diameter_;
gfx::RectF area_;
};
DelegatedInkTrailPresenter* CreatePresenter(Element* element,
LocalFrame* frame) {
return DelegatedInkTrailPresenter::CreatePresenter(element, frame);
}
} // namespace
class DelegatedInkTrailPresenterUnitTest : public SimTest {
protected:
PointerEvent* CreatePointerMoveEvent(gfx::PointF pt) {
PointerEventInit* init = PointerEventInit::Create();
init->setClientX(pt.x());
init->setClientY(pt.y());
PointerEvent* event = PointerEvent::Create("pointermove", init);
event->SetTrusted(true);
return event;
}
TestDelegatedInkMetadata GetActualMetadata() {
return TestDelegatedInkMetadata(
WebWidgetClient().layer_tree_host()->DelegatedInkMetadataForTesting());
}
void SetPageZoomFactor(const float zoom) {
GetDocument().GetFrame()->SetPageZoomFactor(zoom);
}
};
// Confirm that all the information is collected and transformed correctly, if
// necessary. Numbers and color used were chosen arbitrarily.
TEST_F(DelegatedInkTrailPresenterUnitTest, CollectAndPropagateMetadata) {
SimRequest main_resource("https://example.com/test.html", "text/html");
LoadURL("https://example.com/test.html");
main_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
canvas {
width: 191px;
height: 234px;
}
</style>
<canvas id='canvas'></canvas>
)HTML");
Compositor().BeginFrame();
const float kCanvasWidth = 191.f;
const float kCanvasHeight = 234.f;
TestDelegatedInkMetadata expected_metadata(
gfx::RectF(0, 0, kCanvasWidth, kCanvasHeight));
DelegatedInkTrailPresenter* presenter = CreatePresenter(
GetDocument().getElementById("canvas"), GetDocument().GetFrame());
DCHECK(presenter);
InkTrailStyle style;
style.setDiameter(5);
style.setColor("blue");
expected_metadata.SetDiameter(style.diameter());
expected_metadata.SetColor(SK_ColorBLUE);
gfx::PointF pt(100, 100);
presenter->updateInkTrailStartPoint(
ToScriptStateForMainWorld(GetDocument().GetFrame()),
CreatePointerMoveEvent(pt), &style);
expected_metadata.SetPoint(pt);
expected_metadata.ExpectEqual(GetActualMetadata());
}
// Confirm that presentation area defaults to the size of the viewport.
// Numbers and color used were chosen arbitrarily.
TEST_F(DelegatedInkTrailPresenterUnitTest, PresentationAreaNotProvided) {
const int kViewportHeight = 555;
const int kViewportWidth = 333;
WebView().MainFrameWidget()->Resize(WebSize(kViewportWidth, kViewportHeight));
DelegatedInkTrailPresenter* presenter =
CreatePresenter(nullptr, GetDocument().GetFrame());
DCHECK(presenter);
TestDelegatedInkMetadata expected_metadata(
gfx::RectF(0, 0, kViewportWidth, kViewportHeight));
InkTrailStyle style;
style.setDiameter(3.6);
style.setColor("yellow");
expected_metadata.SetDiameter(style.diameter());
expected_metadata.SetColor(SK_ColorYELLOW);
gfx::PointF pt(70, 109);
presenter->updateInkTrailStartPoint(
ToScriptStateForMainWorld(GetDocument().GetFrame()),
CreatePointerMoveEvent(pt), &style);
expected_metadata.SetPoint(pt);
expected_metadata.ExpectEqual(GetActualMetadata());
}
// Confirm that everything is still calculated correctly when the
// DevicePixelRatio is not 1. Numbers and color used were chosen arbitrarily.
TEST_F(DelegatedInkTrailPresenterUnitTest, NotDefaultDevicePixelRatio) {
const float kZoom = 1.7;
SetPageZoomFactor(kZoom);
SimRequest main_resource("https://example.com/test.html", "text/html");
LoadURL("https://example.com/test.html");
main_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
canvas {
width: 281px;
height: 190px;
}
</style>
<canvas id='canvas'></canvas>
)HTML");
Compositor().BeginFrame();
const float kCanvasWidth = 281.f;
const float kCanvasHeight = 190.f;
TestDelegatedInkMetadata expected_metadata(
gfx::RectF(0, 0, kCanvasWidth, kCanvasHeight), kZoom);
DelegatedInkTrailPresenter* presenter = CreatePresenter(
GetDocument().getElementById("canvas"), GetDocument().GetFrame());
DCHECK(presenter);
InkTrailStyle style;
style.setDiameter(101.5);
style.setColor("magenta");
expected_metadata.SetDiameter(style.diameter() * kZoom);
expected_metadata.SetColor(SK_ColorMAGENTA);
gfx::PointF pt(87, 113);
presenter->updateInkTrailStartPoint(
ToScriptStateForMainWorld(GetDocument().GetFrame()),
CreatePointerMoveEvent(pt), &style);
pt.Scale(kZoom);
expected_metadata.SetPoint(pt);
expected_metadata.ExpectEqual(GetActualMetadata());
}
// Confirm that the offset is correct. Numbers and color used were chosen
// arbitrarily.
TEST_F(DelegatedInkTrailPresenterUnitTest, CanvasNotAtOrigin) {
SimRequest main_resource("https://example.com/test.html", "text/html");
LoadURL("https://example.com/test.html");
main_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
canvas {
width: 250px;
height: 350px;
position: fixed;
top: 375px;
left: 166px;
}
</style>
<canvas id='canvas'></canvas>
)HTML");
Compositor().BeginFrame();
const float kCanvasWidth = 250.f;
const float kCanvasHeight = 350.f;
const float kCanvasTopOffset = 375.f;
const float kCanvasLeftOffset = 166.f;
TestDelegatedInkMetadata expected_metadata(gfx::RectF(
kCanvasLeftOffset, kCanvasTopOffset, kCanvasWidth, kCanvasHeight));
DelegatedInkTrailPresenter* presenter = CreatePresenter(
GetDocument().getElementById("canvas"), GetDocument().GetFrame());
DCHECK(presenter);
InkTrailStyle style;
style.setDiameter(8.6);
style.setColor("red");
expected_metadata.SetDiameter(style.diameter());
expected_metadata.SetColor(SK_ColorRED);
gfx::PointF pt(380, 175);
presenter->updateInkTrailStartPoint(
ToScriptStateForMainWorld(GetDocument().GetFrame()),
CreatePointerMoveEvent(pt), &style);
expected_metadata.SetPoint(pt);
expected_metadata.ExpectEqual(GetActualMetadata());
}
// Confirm that values, specifically offsets, are transformed correctly when
// the canvas is in an iframe. Numbers and color used were chosen arbitrarily.
TEST_F(DelegatedInkTrailPresenterUnitTest, CanvasInIFrame) {
SimRequest main_resource("https://example.com/test.html", "text/html");
SimRequest frame_resource("https://example.com/iframe.html", "text/html");
LoadURL("https://example.com/test.html");
main_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
iframe {
width: 500px;
height: 500px;
position: fixed;
top: 26px;
left: 57px;
}
</style>
<iframe id='iframe' src='https://example.com/iframe.html'>
</iframe>
)HTML");
frame_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
canvas {
width: 250px;
height: 250px;
position: fixed;
top: 33px;
left: 16px;
}
</style>
<canvas id='canvas'></canvas>
)HTML");
Compositor().BeginFrame();
// When creating the expected metadata, we have to take into account the
// offsets that are applied to the iframe that the canvas is in, and the 2px
// border around the iframe.
const float kIframeBorder = 2.f;
const float kIframeLeftOffset = 57.f + kIframeBorder;
const float kIframeTopOffset = 26.f + kIframeBorder;
const float kCanvasLeftOffset = 16.f;
const float kCanvasTopOffset = 33.f;
const float kCanvasHeight = 250.f;
const float kCanvasWidth = 250.f;
auto* iframe_element =
To<HTMLIFrameElement>(GetDocument().getElementById("iframe"));
auto* iframe_localframe = To<LocalFrame>(iframe_element->ContentFrame());
Document* iframe_document = iframe_element->contentDocument();
TestDelegatedInkMetadata expected_metadata(gfx::RectF(
kIframeLeftOffset + kCanvasLeftOffset,
kIframeTopOffset + kCanvasTopOffset, kCanvasWidth, kCanvasHeight));
DelegatedInkTrailPresenter* presenter = CreatePresenter(
iframe_localframe->GetDocument()->getElementById("canvas"),
iframe_document->GetFrame());
DCHECK(presenter);
InkTrailStyle style;
style.setDiameter(0.3);
style.setColor("cyan");
expected_metadata.SetDiameter(style.diameter());
expected_metadata.SetColor(SK_ColorCYAN);
gfx::PointF pt(380, 375);
presenter->updateInkTrailStartPoint(
ToScriptStateForMainWorld(iframe_document->GetFrame()),
CreatePointerMoveEvent(pt), &style);
expected_metadata.SetPoint(
gfx::PointF(pt.x() + kIframeLeftOffset, pt.y() + kIframeTopOffset));
expected_metadata.ExpectEqual(GetActualMetadata());
}
// Confirm that values are correct when an iframe is used and presentation area
// isn't provided. Numbers and color used were chosen arbitrarily.
TEST_F(DelegatedInkTrailPresenterUnitTest, IFrameNoPresentationArea) {
SimRequest main_resource("https://example.com/test.html", "text/html");
SimRequest frame_resource("https://example.com/iframe.html", "text/html");
LoadURL("https://example.com/test.html");
main_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
iframe {
width: 500px;
height: 500px;
position: fixed;
top: 56px;
left: 72px;
}
</style>
<iframe id='iframe' src='https://example.com/iframe.html'>
</iframe>
)HTML");
frame_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
margin: 0;
}
</style>
)HTML");
Compositor().BeginFrame();
// When creating the expected metadata, we have to take into account the
// offsets that are applied to the iframe, and the 2px border.
const float kIframeBorder = 2.f;
const float kIframeLeftOffset = 72.f + kIframeBorder;
const float kIframeTopOffset = 56.f + kIframeBorder;
const float kIframeHeight = 500.f;
const float kIframeWidth = 500.f;
Document* iframe_document =
To<HTMLIFrameElement>(GetDocument().getElementById("iframe"))
->contentDocument();
TestDelegatedInkMetadata expected_metadata(gfx::RectF(
kIframeLeftOffset, kIframeTopOffset, kIframeWidth, kIframeHeight));
DelegatedInkTrailPresenter* presenter =
CreatePresenter(nullptr, iframe_document->GetFrame());
DCHECK(presenter);
InkTrailStyle style;
style.setDiameter(0.01);
style.setColor("white");
expected_metadata.SetDiameter(style.diameter());
expected_metadata.SetColor(SK_ColorWHITE);
gfx::PointF pt(380, 375);
presenter->updateInkTrailStartPoint(
ToScriptStateForMainWorld(iframe_document->GetFrame()),
CreatePointerMoveEvent(pt), &style);
expected_metadata.SetPoint(
gfx::PointF(pt.x() + kIframeLeftOffset, pt.y() + kIframeTopOffset));
expected_metadata.ExpectEqual(GetActualMetadata());
}
} // namespace blink
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