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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/svg/svg_element.h"
#include "third_party/blink/renderer/core/dom/dom_implementation.h"
#include "third_party/blink/renderer/core/dom/shadow_root.h"
#include "third_party/blink/renderer/core/html/html_element.h"
#include "third_party/blink/renderer/core/svg/svg_use_element.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
namespace blink {
using LifecycleUpdateReason = DocumentUpdateReason;
class SVGUseElementTest : public PageTestBase {};
TEST_F(SVGUseElementTest, InstanceInvalidatedWhenNonAttachedTargetRemoved) {
GetDocument().body()->setInnerHTML(R"HTML(
<style></style>
<svg>
<unknown>
<g id="parent">
<a id="target">
</g>
<use id="use" href="#parent">
</unknown>
</svg>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
// Remove #target.
ASSERT_TRUE(GetDocument().getElementById("target"));
GetDocument().getElementById("target")->remove();
// This should cause a rebuild of the <use> shadow tree.
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
// There should be no instance for #target anymore, since that element was
// removed.
auto* use = To<SVGUseElement>(GetDocument().getElementById("use"));
ASSERT_TRUE(use);
ASSERT_TRUE(use->GetShadowRoot());
ASSERT_FALSE(use->GetShadowRoot()->getElementById("target"));
}
TEST_F(SVGUseElementTest,
InstanceInvalidatedWhenNonAttachedTargetMovedInDocument) {
GetDocument().body()->setInnerHTML(R"HTML(
<svg>
<use id="use" href="#path"/>
<textPath id="path">
<textPath>
<a id="target" systemLanguage="th"></a>
</textPath>
</textPath>
</svg>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
// Move #target in the document (leaving it still "connected").
Element* target = GetDocument().getElementById("target");
ASSERT_TRUE(target);
GetDocument().body()->appendChild(target);
// This should cause a rebuild of the <use> shadow tree.
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
// There should be no instance for #target anymore, since that element was
// removed.
auto* use = To<SVGUseElement>(GetDocument().getElementById("use"));
ASSERT_TRUE(use);
ASSERT_TRUE(use->GetShadowRoot());
ASSERT_FALSE(use->GetShadowRoot()->getElementById("target"));
}
TEST_F(SVGUseElementTest, NullInstanceRootWhenNotConnectedToDocument) {
GetDocument().body()->setInnerHTML(R"HTML(
<svg>
<defs>
<rect id="r" width="100" height="100" fill="blue"/>
</defs>
<use id="target" href="#r"/>
</svg>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
auto* target = To<SVGUseElement>(GetDocument().getElementById("target"));
ASSERT_TRUE(target);
ASSERT_TRUE(target->InstanceRoot());
target->remove();
ASSERT_FALSE(target->InstanceRoot());
}
TEST_F(SVGUseElementTest, NullInstanceRootWhenConnectedToInactiveDocument) {
GetDocument().body()->setInnerHTML(R"HTML(
<svg>
<defs>
<rect id="r" width="100" height="100" fill="blue"/>
</defs>
<use id="target" href="#r"/>
</svg>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
auto* target = To<SVGUseElement>(GetDocument().getElementById("target"));
ASSERT_TRUE(target);
ASSERT_TRUE(target->InstanceRoot());
Document* other_document =
GetDocument().implementation().createHTMLDocument();
other_document->body()->appendChild(target);
ASSERT_FALSE(target->InstanceRoot());
}
TEST_F(SVGUseElementTest, NullInstanceRootWhenShadowTreePendingRebuild) {
GetDocument().body()->setInnerHTML(R"HTML(
<svg>
<defs>
<rect id="r" width="100" height="100" fill="blue"/>
</defs>
<use id="target" href="#r"/>
</svg>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases(LifecycleUpdateReason::kTest);
auto* target = To<SVGUseElement>(GetDocument().getElementById("target"));
ASSERT_TRUE(target);
ASSERT_TRUE(target->InstanceRoot());
GetDocument().getElementById("r")->setAttribute(html_names::kWidthAttr, "50");
ASSERT_FALSE(target->InstanceRoot());
}
} // namespace blink
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