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// Copyright 2016 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/box_paint_invalidator.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/html/html_frame_owner_element.h"
#include "third_party/blink/renderer/core/html_names.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/paint/paint_controller_paint_test.h"
#include "third_party/blink/renderer/core/paint/paint_invalidator.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
#include "third_party/blink/renderer/core/testing/core_unit_test_helper.h"
#include "third_party/blink/renderer/platform/graphics/graphics_layer.h"
#include "third_party/blink/renderer/platform/graphics/paint/raster_invalidation_tracking.h"
#include "third_party/blink/renderer/platform/testing/runtime_enabled_features_test_helpers.h"
namespace blink {
class BoxPaintInvalidatorTest : public PaintControllerPaintTest {
public:
BoxPaintInvalidatorTest()
: PaintControllerPaintTest(SingleChildLocalFrameClient::Create()) {}
protected:
PaintInvalidationReason ComputePaintInvalidationReason(
const LayoutBox& box,
const LayoutRect& old_visual_rect,
const LayoutPoint& old_paint_offset) {
FragmentData fragment_data;
PaintInvalidatorContext context;
context.old_visual_rect = old_visual_rect;
context.old_paint_offset = old_paint_offset;
fragment_data_.SetVisualRect(box.FirstFragment().VisualRect());
fragment_data_.SetPaintOffset(box.FirstFragment().PaintOffset());
context.fragment_data = &fragment_data_;
return BoxPaintInvalidator(box, context).ComputePaintInvalidationReason();
}
// This applies when the target is set to meet conditions that we should do
// full paint invalidation instead of incremental invalidation on geometry
// change.
void ExpectFullPaintInvalidationOnGeometryChange(const char* test_title) {
SCOPED_TRACE(test_title);
GetDocument().View()->UpdateAllLifecyclePhases();
auto& target = *GetDocument().getElementById("target");
const auto& box = *ToLayoutBox(target.GetLayoutObject());
LayoutRect visual_rect = box.FirstFragment().VisualRect();
LayoutPoint paint_offset = box.FirstFragment().PaintOffset();
// No geometry change.
EXPECT_EQ(PaintInvalidationReason::kNone,
ComputePaintInvalidationReason(box, visual_rect, paint_offset));
target.setAttribute(
HTMLNames::styleAttr,
target.getAttribute(HTMLNames::styleAttr) + "; width: 200px");
GetDocument().View()->UpdateLifecycleToLayoutClean();
// Simulate that PaintInvalidator updates visual rect.
box.GetMutableForPainting().SetVisualRect(
LayoutRect(visual_rect.Location(), box.Size()));
EXPECT_EQ(PaintInvalidationReason::kGeometry,
ComputePaintInvalidationReason(box, visual_rect, paint_offset));
}
void SetUpHTML() {
SetBodyInnerHTML(R"HTML(
<style>
body {
margin: 0;
height: 0;
}
::-webkit-scrollbar { display: none }
#target {
width: 50px;
height: 100px;
transform-origin: 0 0;
}
.border {
border-width: 20px 10px;
border-style: solid;
border-color: red;
}
</style>
<div id='target' class='border'></div>
)HTML");
}
private:
FragmentData fragment_data_;
};
INSTANTIATE_PAINT_TEST_CASE_P(BoxPaintInvalidatorTest);
TEST_P(BoxPaintInvalidatorTest, ComputePaintInvalidationReasonPaintingNothing) {
SetUpHTML();
auto& target = *GetDocument().getElementById("target");
auto& box = *ToLayoutBox(target.GetLayoutObject());
// Remove border.
target.setAttribute(HTMLNames::classAttr, "");
GetDocument().View()->UpdateAllLifecyclePhases();
EXPECT_TRUE(box.PaintedOutputOfObjectHasNoEffectRegardlessOfSize());
LayoutRect visual_rect = box.FirstFragment().VisualRect();
EXPECT_EQ(LayoutRect(0, 0, 50, 100), visual_rect);
// No geometry change.
EXPECT_EQ(
PaintInvalidationReason::kNone,
ComputePaintInvalidationReason(box, visual_rect, visual_rect.Location()));
// Paint offset change.
EXPECT_EQ(PaintInvalidationReason::kNone,
ComputePaintInvalidationReason(
box, visual_rect, visual_rect.Location() + LayoutSize(10, 20)));
// Visual rect size change.
LayoutRect old_visual_rect = visual_rect;
target.setAttribute(HTMLNames::styleAttr, "width: 200px");
GetDocument().View()->UpdateLifecycleToLayoutClean();
// Simulate that PaintInvalidator updates visual rect.
box.GetMutableForPainting().SetVisualRect(
LayoutRect(visual_rect.Location(), box.Size()));
EXPECT_EQ(PaintInvalidationReason::kNone,
ComputePaintInvalidationReason(box, old_visual_rect,
old_visual_rect.Location()));
}
TEST_P(BoxPaintInvalidatorTest, ComputePaintInvalidationReasonBasic) {
SetUpHTML();
auto& target = *GetDocument().getElementById("target");
auto& box = *ToLayoutBox(target.GetLayoutObject());
// Remove border.
target.setAttribute(HTMLNames::classAttr, "");
target.setAttribute(HTMLNames::styleAttr, "background: blue");
GetDocument().View()->UpdateAllLifecyclePhases();
box.SetMayNeedPaintInvalidation();
LayoutRect visual_rect = box.FirstFragment().VisualRect();
EXPECT_EQ(LayoutRect(0, 0, 50, 100), visual_rect);
// No geometry change.
EXPECT_EQ(
PaintInvalidationReason::kNone,
ComputePaintInvalidationReason(box, visual_rect, visual_rect.Location()));
// Visual rect size change.
LayoutRect old_visual_rect = visual_rect;
target.setAttribute(HTMLNames::styleAttr, "background: blue; width: 200px");
GetDocument().View()->UpdateLifecycleToLayoutClean();
// Simulate that PaintInvalidator updates visual rect.
box.GetMutableForPainting().SetVisualRect(
LayoutRect(visual_rect.Location(), box.Size()));
EXPECT_EQ(PaintInvalidationReason::kIncremental,
ComputePaintInvalidationReason(box, old_visual_rect,
old_visual_rect.Location()));
// Visual rect size change, with paint offset different from location of
// visual rect.
LayoutPoint fake_paint_offset = visual_rect.Location() + LayoutSize(10, 20);
box.GetMutableForPainting().FirstFragment().SetPaintOffset(fake_paint_offset);
EXPECT_EQ(
PaintInvalidationReason::kGeometry,
ComputePaintInvalidationReason(box, old_visual_rect, fake_paint_offset));
// Should use the existing full paint invalidation reason regardless of
// geometry change.
box.SetShouldDoFullPaintInvalidation(PaintInvalidationReason::kStyle);
EXPECT_EQ(
PaintInvalidationReason::kStyle,
ComputePaintInvalidationReason(box, visual_rect, visual_rect.Location()));
EXPECT_EQ(PaintInvalidationReason::kStyle,
ComputePaintInvalidationReason(
box, visual_rect, visual_rect.Location() + LayoutSize(10, 20)));
}
TEST_P(BoxPaintInvalidatorTest, ComputePaintInvalidationReasonOtherCases) {
SetUpHTML();
auto& target = *GetDocument().getElementById("target");
// The target initially has border.
ExpectFullPaintInvalidationOnGeometryChange("With border");
// Clear border.
target.setAttribute(HTMLNames::classAttr, "");
target.setAttribute(HTMLNames::styleAttr, "border-radius: 5px");
ExpectFullPaintInvalidationOnGeometryChange("With border-radius");
target.setAttribute(HTMLNames::styleAttr, "-webkit-mask: url(#)");
ExpectFullPaintInvalidationOnGeometryChange("With mask");
target.setAttribute(HTMLNames::styleAttr, "filter: blur(5px)");
ExpectFullPaintInvalidationOnGeometryChange("With filter");
target.setAttribute(HTMLNames::styleAttr, "outline: 2px solid blue");
ExpectFullPaintInvalidationOnGeometryChange("With outline");
target.setAttribute(HTMLNames::styleAttr, "box-shadow: inset 3px 2px");
ExpectFullPaintInvalidationOnGeometryChange("With box-shadow");
target.setAttribute(HTMLNames::styleAttr, "-webkit-appearance: button");
ExpectFullPaintInvalidationOnGeometryChange("With appearance");
target.setAttribute(HTMLNames::styleAttr, "clip-path: circle(50% at 0 50%)");
ExpectFullPaintInvalidationOnGeometryChange("With clip-path");
}
} // namespace blink
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