gecko-dev/layout/style/CSSMozDocumentRule.cpp

137 строки
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(nsIDocument* 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 != nsIDocument::MediaDocumentKind::NotMedia;
}
MOZ_ASSERT(aPattern.EqualsLiteral("plugin") ||
aPattern.EqualsLiteral("image") ||
aPattern.EqualsLiteral("video"));
switch (kind) {
case nsIDocument::MediaDocumentKind::NotMedia:
return false;
case nsIDocument::MediaDocumentKind::Plugin:
return aPattern.EqualsLiteral("plugin");
case nsIDocument::MediaDocumentKind::Image:
return aPattern.EqualsLiteral("image");
case nsIDocument::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);
}
}
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)
{
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