The Tor Browser: layout/style/test/ParseCSS.cpp@7e26c7da4463

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 // vim:cindent:ts=8:et:sw=4:

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 /*

     8  * This file is meant to be used with |#define CSS_REPORT_PARSE_ERRORS|

     9  * in mozilla/content/html/style/src/nsCSSScanner.h uncommented, and the

    10  * |#ifdef DEBUG| block in nsCSSScanner::OutputError (in

    11  * nsCSSScanner.cpp in the same directory) used (even if not a debug

    12  * build).

    13  */

    15 #include "nsXPCOM.h"

    16 #include "nsCOMPtr.h"

    18 #include "nsIFile.h"

    19 #include "nsNetUtil.h"

    21 #include "nsContentCID.h"

    22 #include "mozilla/css/Loader.h"

    23 #include "nsCSSStyleSheet.h"

    25 static already_AddRefed<nsIURI>

    26 FileToURI(const char *aFilename, nsresult *aRv = 0)

    27 {

    28     nsCOMPtr<nsIFile> lf(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, aRv));

    29     NS_ENSURE_TRUE(lf, nullptr);

    30     // XXX Handle relative paths somehow.

    31     lf->InitWithNativePath(nsDependentCString(aFilename));

    33     nsIURI *uri = nullptr;

    34     nsresult rv = NS_NewFileURI(&uri, lf);

    35     if (aRv)

    36         *aRv = rv;

    37     return uri;

    38 }

    40 static int

    41 ParseCSSFile(nsIURI *aSheetURI)

    42 {

    43     nsRefPtr<mozilla::css::Loader> = new mozilla::css::Loader();

    44     nsRefPtr<nsCSSStyleSheet> sheet;

    45     loader->LoadSheetSync(aSheetURI, getter_AddRefs(sheet));

    46     NS_ASSERTION(sheet, "sheet load failed");

    47     /* This can happen if the file can't be found (e.g. you

    48      * ask for a relative path and xpcom/io rejects it)

    49      */

    50     if (!sheet)

    51         return -1;

    52     bool complete;

    53     sheet->GetComplete(complete);

    54     NS_ASSERTION(complete, "synchronous load did not complete");

    55     if (!complete)

    56         return -2;

    57     return 0;

    58 }

    60 int main(int argc, char** argv)

    61 {

    62     if (argc < 2) {

    63         fprintf(stderr, "%s [FILE]...\n", argv[0]);

    64     }

    65     nsresult rv = NS_InitXPCOM2(nullptr, nullptr, nullptr);

    66     if (NS_FAILED(rv))

    67         return (int)rv;

    69     int res = 0;

    70     for (int i = 1; i < argc; ++i) {

    71         const char *filename = argv[i];

    73         printf("\nParsing %s.\n", filename);

    75         nsCOMPtr<nsIURI> uri = FileToURI(filename, &rv);

    76         if (rv == NS_ERROR_OUT_OF_MEMORY) {

    77             fprintf(stderr, "Out of memory.\n");

    78             return 1;

    79         }

    80         if (uri)

    81             res = ParseCSSFile(uri);

    82     }

    84     NS_ShutdownXPCOM(nullptr);

    86     return res;

    87 }

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