mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* DOM object holding utility CSS functions */
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#include "CSS.h"
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#include "mozilla/dom/BindingDeclarations.h"
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#include "nsCSSParser.h"
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#include "nsGlobalWindow.h"
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#include "nsIDOMDocument.h"
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#include "nsIDocument.h"
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#include "nsIPrincipal.h"
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#include "nsIURI.h"
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namespace mozilla {
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namespace dom {
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struct SupportsParsingInfo
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{
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nsIURI* mDocURI;
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nsIURI* mBaseURI;
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nsIPrincipal* mPrincipal;
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};
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static nsresult
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GetParsingInfo(nsISupports* aGlobal,
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SupportsParsingInfo& aInfo)
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{
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if (!aGlobal) {
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return NS_ERROR_FAILURE;
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}
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nsGlobalWindow* win = nsGlobalWindow::FromSupports(aGlobal);
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nsCOMPtr<nsIDocument> doc = win->GetDoc();
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if (!doc) {
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return NS_ERROR_FAILURE;
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}
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aInfo.mDocURI = nsCOMPtr<nsIURI>(doc->GetDocumentURI());
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aInfo.mBaseURI = nsCOMPtr<nsIURI>(doc->GetBaseURI());
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aInfo.mPrincipal = win->GetPrincipal();
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return NS_OK;
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}
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/* static */ bool
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CSS::Supports(const GlobalObject& aGlobal,
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const nsAString& aProperty,
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const nsAString& aValue,
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ErrorResult& aRv)
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{
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nsCSSParser parser;
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SupportsParsingInfo info;
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nsresult rv = GetParsingInfo(aGlobal.Get(), info);
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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return false;
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}
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return parser.EvaluateSupportsDeclaration(aProperty, aValue, info.mDocURI,
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info.mBaseURI, info.mPrincipal);
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}
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/* static */ bool
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CSS::Supports(const GlobalObject& aGlobal,
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const nsAString& aCondition,
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ErrorResult& aRv)
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{
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nsCSSParser parser;
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SupportsParsingInfo info;
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nsresult rv = GetParsingInfo(aGlobal.Get(), info);
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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return false;
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}
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return parser.EvaluateSupportsCondition(aCondition, info.mDocURI,
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info.mBaseURI, info.mPrincipal);
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}
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} // dom
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} // mozilla
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