mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-20 16:55:40 +00:00
ff890f406e
When we call nsContentUtils::IsPatternMatching, we swallow JS engine errors unconditionally returning true. This is bad, because if it happens in one of the value sets that arguably shouldn't change the state of the element, we end up returning an arbitrary value (true) which may or may not match the previous state of the element. Handle error explicitly instead, by not updating the state. Differential Revision: https://phabricator.services.mozilla.com/D45727 --HG-- extra : moz-landing-system : lando
129 lines
4.4 KiB
C++
129 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/dom/CSSMozDocumentRule.h"
|
|
#include "mozilla/dom/CSSMozDocumentRuleBinding.h"
|
|
#include "mozilla/ServoBindings.h"
|
|
#include "nsContentUtils.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
using namespace mozilla::css;
|
|
|
|
/* virtual */
|
|
JSObject* CSSMozDocumentRule::WrapObject(JSContext* aCx,
|
|
JS::Handle<JSObject*> aGivenProto) {
|
|
return CSSMozDocumentRule_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
bool CSSMozDocumentRule::Match(const Document* aDoc, nsIURI* aDocURI,
|
|
const nsACString& aDocURISpec,
|
|
const nsACString& aPattern,
|
|
DocumentMatchingFunction aMatchingFunction) {
|
|
switch (aMatchingFunction) {
|
|
case DocumentMatchingFunction::MediaDocument: {
|
|
auto kind = aDoc->MediaDocumentKind();
|
|
if (aPattern.EqualsLiteral("all")) {
|
|
return kind != Document::MediaDocumentKind::NotMedia;
|
|
}
|
|
MOZ_ASSERT(aPattern.EqualsLiteral("plugin") ||
|
|
aPattern.EqualsLiteral("image") ||
|
|
aPattern.EqualsLiteral("video"));
|
|
switch (kind) {
|
|
case Document::MediaDocumentKind::NotMedia:
|
|
return false;
|
|
case Document::MediaDocumentKind::Plugin:
|
|
return aPattern.EqualsLiteral("plugin");
|
|
case Document::MediaDocumentKind::Image:
|
|
return aPattern.EqualsLiteral("image");
|
|
case Document::MediaDocumentKind::Video:
|
|
return aPattern.EqualsLiteral("video");
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Unknown media document kind");
|
|
return false;
|
|
}
|
|
case DocumentMatchingFunction::URL:
|
|
return aDocURISpec == aPattern;
|
|
case DocumentMatchingFunction::URLPrefix:
|
|
return StringBeginsWith(aDocURISpec, aPattern);
|
|
case DocumentMatchingFunction::Domain: {
|
|
nsAutoCString host;
|
|
if (aDocURI) {
|
|
aDocURI->GetHost(host);
|
|
}
|
|
int32_t lenDiff = host.Length() - aPattern.Length();
|
|
if (lenDiff == 0) {
|
|
return host == aPattern;
|
|
}
|
|
return StringEndsWith(host, aPattern) && host.CharAt(lenDiff - 1) == '.';
|
|
}
|
|
case DocumentMatchingFunction::RegExp: {
|
|
NS_ConvertUTF8toUTF16 spec(aDocURISpec);
|
|
NS_ConvertUTF8toUTF16 regex(aPattern);
|
|
return nsContentUtils::IsPatternMatching(spec, regex, aDoc)
|
|
.valueOr(false);
|
|
}
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Unknown matching function");
|
|
return false;
|
|
}
|
|
|
|
CSSMozDocumentRule::CSSMozDocumentRule(RefPtr<RawServoMozDocumentRule> aRawRule,
|
|
StyleSheet* aSheet,
|
|
css::Rule* aParentRule, uint32_t aLine,
|
|
uint32_t aColumn)
|
|
: css::ConditionRule(Servo_MozDocumentRule_GetRules(aRawRule).Consume(),
|
|
aSheet, aParentRule, aLine, aColumn),
|
|
mRawRule(std::move(aRawRule)) {}
|
|
|
|
NS_IMPL_ADDREF_INHERITED(CSSMozDocumentRule, css::ConditionRule)
|
|
NS_IMPL_RELEASE_INHERITED(CSSMozDocumentRule, css::ConditionRule)
|
|
|
|
// QueryInterface implementation for MozDocumentRule
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSMozDocumentRule)
|
|
NS_INTERFACE_MAP_END_INHERITING(css::ConditionRule)
|
|
|
|
#ifdef DEBUG
|
|
/* virtual */
|
|
void CSSMozDocumentRule::List(FILE* out, int32_t aIndent) const {
|
|
nsAutoCString str;
|
|
for (int32_t i = 0; i < aIndent; i++) {
|
|
str.AppendLiteral(" ");
|
|
}
|
|
Servo_MozDocumentRule_Debug(mRawRule, &str);
|
|
fprintf_stderr(out, "%s\n", str.get());
|
|
}
|
|
#endif
|
|
|
|
void CSSMozDocumentRule::GetConditionText(nsAString& aConditionText) {
|
|
Servo_MozDocumentRule_GetConditionText(mRawRule, &aConditionText);
|
|
}
|
|
|
|
void CSSMozDocumentRule::SetConditionText(const nsAString& aConditionText,
|
|
ErrorResult& aRv) {
|
|
if (IsReadOnly()) {
|
|
return;
|
|
}
|
|
|
|
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
|
|
}
|
|
|
|
/* virtual */
|
|
void CSSMozDocumentRule::GetCssText(nsAString& aCssText) const {
|
|
Servo_MozDocumentRule_GetCssText(mRawRule, &aCssText);
|
|
}
|
|
|
|
/* virtual */
|
|
size_t CSSMozDocumentRule::SizeOfIncludingThis(
|
|
MallocSizeOf aMallocSizeOf) const {
|
|
// TODO Implement this!
|
|
return aMallocSizeOf(this);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|