/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* 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/. */ /* DOM object holding utility CSS functions */ #include "CSS.h" #include "mozilla/dom/BindingDeclarations.h" #include "mozilla/ServoBindings.h" #include "nsCSSParser.h" #include "nsGlobalWindow.h" #include "nsIDocument.h" #include "nsIURI.h" #include "nsStyleUtil.h" #include "xpcpublic.h" namespace mozilla { namespace dom { struct SupportsParsingInfo { nsIURI* mDocURI; nsIURI* mBaseURI; nsIPrincipal* mPrincipal; StyleBackendType mStyleBackendType; }; static nsresult GetParsingInfo(const GlobalObject& aGlobal, SupportsParsingInfo& aInfo) { nsGlobalWindow* win = xpc::WindowOrNull(aGlobal.Get()); if (!win) { return NS_ERROR_FAILURE; } nsCOMPtr<nsIDocument> doc = win->GetDoc(); if (!doc) { return NS_ERROR_FAILURE; } aInfo.mDocURI = nsCOMPtr<nsIURI>(doc->GetDocumentURI()).get(); aInfo.mBaseURI = nsCOMPtr<nsIURI>(doc->GetBaseURI()).get(); aInfo.mPrincipal = win->GetPrincipal(); aInfo.mStyleBackendType = doc->GetStyleBackendType(); return NS_OK; } /* static */ bool CSS::Supports(const GlobalObject& aGlobal, const nsAString& aProperty, const nsAString& aValue, ErrorResult& aRv) { SupportsParsingInfo info; nsresult rv = GetParsingInfo(aGlobal, info); if (NS_FAILED(rv)) { aRv.Throw(rv); return false; } if (info.mStyleBackendType == StyleBackendType::Servo) { NS_ConvertUTF16toUTF8 property(aProperty); NS_ConvertUTF16toUTF8 value(aValue); return Servo_CSSSupports(&property, &value); } nsCSSParser parser; return parser.EvaluateSupportsDeclaration(aProperty, aValue, info.mDocURI, info.mBaseURI, info.mPrincipal); } /* static */ bool CSS::Supports(const GlobalObject& aGlobal, const nsAString& aCondition, ErrorResult& aRv) { SupportsParsingInfo info; nsresult rv = GetParsingInfo(aGlobal, info); if (NS_FAILED(rv)) { aRv.Throw(rv); return false; } if (info.mStyleBackendType == StyleBackendType::Servo) { MOZ_CRASH("stylo: CSS.supports() with arguments is not yet implemented"); } nsCSSParser parser; return parser.EvaluateSupportsCondition(aCondition, info.mDocURI, info.mBaseURI, info.mPrincipal); } /* static */ void CSS::Escape(const GlobalObject& aGlobal, const nsAString& aIdent, nsAString& aReturn) { nsStyleUtil::AppendEscapedCSSIdent(aIdent, aReturn); } } // namespace dom } // namespace mozilla