зеркало из https://github.com/mozilla/gecko-dev.git
82 строки
2.0 KiB
C++
82 строки
2.0 KiB
C++
|
/* -*- 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 "nsCSSParser.h"
|
||
|
|
#include "nsGlobalWindow.h"
|
||
|
|
#include "nsIDOMDocument.h"
|
||
|
|
#include "nsIDocument.h"
|
||
|
|
#include "nsIPrincipal.h"
|
||
|
|
#include "nsIURI.h"
|
||
|
|
|
||
|
|
namespace mozilla {
|
||
|
|
namespace dom {
|
||
|
|
|
||
|
|
struct SupportsParsingInfo
|
||
|
|
{
|
||
|
|
nsIURI* mDocURI;
|
||
|
|
nsIURI* mBaseURI;
|
||
|
|
nsIPrincipal* mPrincipal;
|
||
|
|
};
|
||
|
|
|
||
|
|
static nsresult
|
||
|
|
GetParsingInfo(nsISupports* aGlobal,
|
||
|
|
SupportsParsingInfo& aInfo)
|
||
|
|
{
|
||
|
|
nsGlobalWindow* win = nsGlobalWindow::FromSupports(aGlobal);
|
||
|
|
nsCOMPtr<nsIDocument> doc = win->GetDoc();
|
||
|
|
if (!doc) {
|
||
|
|
return NS_ERROR_FAILURE;
|
||
|
|
}
|
||
|
|
|
||
|
|
aInfo.mDocURI = nsCOMPtr<nsIURI>(doc->GetDocumentURI());
|
||
|
|
aInfo.mBaseURI = nsCOMPtr<nsIURI>(doc->GetBaseURI());
|
||
|
|
aInfo.mPrincipal = win->GetPrincipal();
|
||
|
|
return NS_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* static */ bool
|
||
|
|
CSS::Supports(nsISupports* aGlobal,
|
||
|
|
const nsAString& aProperty,
|
||
|
|
const nsAString& aValue,
|
||
|
|
ErrorResult& aRv)
|
||
|
|
{
|
||
|
|
nsCSSParser parser;
|
||
|
|
SupportsParsingInfo info;
|
||
|
|
|
||
|
|
nsresult rv = GetParsingInfo(aGlobal, info);
|
||
|
|
if (NS_FAILED(rv)) {
|
||
|
|
aRv.Throw(rv);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return parser.EvaluateSupportsDeclaration(aProperty, aValue, info.mDocURI,
|
||
|
|
info.mBaseURI, info.mPrincipal);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* static */ bool
|
||
|
|
CSS::Supports(nsISupports* aGlobal,
|
||
|
|
const nsAString& aCondition,
|
||
|
|
ErrorResult& aRv)
|
||
|
|
{
|
||
|
|
nsCSSParser parser;
|
||
|
|
SupportsParsingInfo info;
|
||
|
|
|
||
|
|
nsresult rv = GetParsingInfo(aGlobal, info);
|
||
|
|
if (NS_FAILED(rv)) {
|
||
|
|
aRv.Throw(rv);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return parser.EvaluateSupportsCondition(aCondition, info.mDocURI,
|
||
|
|
info.mBaseURI, info.mPrincipal);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // dom
|
||
|
|
} // mozilla
|