RetroZilla/layout/html/tests/ParseCSS.cpp
2015-10-20 23:03:22 -04:00

122 lines
3.9 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:cindent:ts=8:et:sw=4:
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is L. David Baron.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* L. David Baron <dbaron@dbaron.org> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* This file is meant to be used with |#define CSS_REPORT_PARSE_ERRORS|
* in mozilla/content/html/style/src/nsCSSScanner.h uncommented, and the
* |#ifdef DEBUG| block in nsCSSScanner::OutputError (in
* nsCSSScanner.cpp in the same directory) used (even if not a debug
* build).
*/
#include "nsXPCOM.h"
#include "nsCOMPtr.h"
#include "nsILocalFile.h"
#include "nsNetUtil.h"
#include "nsContentCID.h"
#include "nsICSSLoader.h"
#include "nsICSSStyleSheet.h"
static NS_DEFINE_CID(kCSSLoaderCID, NS_CSS_LOADER_CID);
static already_AddRefed<nsIURI>
FileToURI(const char *aFilename, nsresult *aRv = 0)
{
nsCOMPtr<nsILocalFile> lf(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, aRv));
NS_ENSURE_TRUE(lf, nsnull);
// XXX Handle relative paths somehow.
lf->InitWithNativePath(nsDependentCString(aFilename));
nsIURI *uri = nsnull;
nsresult rv = NS_NewFileURI(&uri, lf);
if (aRv)
*aRv = rv;
return uri;
}
static int
ParseCSSFile(nsIURI *aSheetURI)
{
nsCOMPtr<nsICSSLoader> loader(do_CreateInstance(kCSSLoaderCID));
nsCOMPtr<nsICSSStyleSheet> sheet;
loader->LoadAgentSheet(aSheetURI, getter_AddRefs(sheet));
NS_ASSERTION(sheet, "sheet load failed");
/* This can happen if the file can't be found (e.g. you
* ask for a relative path and xpcom/io rejects it)
*/
if (!sheet)
return -1;
PRBool complete;
sheet->GetComplete(complete);
NS_ASSERTION(complete, "synchronous load did not complete");
if (!complete)
return -2;
return 0;
}
int main(int argc, char** argv)
{
if (argc < 2) {
fprintf(stderr, "%s [FILE]...\n", argv[0]);
}
nsresult rv = NS_InitXPCOM2(nsnull, nsnull, nsnull);
if (NS_FAILED(rv))
return (int)rv;
int res = 0;
for (int i = 1; i < argc; ++i) {
const char *filename = argv[i];
printf("\nParsing %s.\n", filename);
nsCOMPtr<nsIURI> uri = FileToURI(filename, &rv);
if (rv == NS_ERROR_OUT_OF_MEMORY) {
fprintf(stderr, "Out of memory.\n");
return 1;
}
if (uri)
res = ParseCSSFile(uri);
}
NS_ShutdownXPCOM(nsnull);
return res;
}