RetroZilla/embedding/minimo/chromelite/nsSimpleChromeHandler.cpp
2015-10-20 23:03:22 -04:00

269 lines
7.4 KiB
C++

/* ***** 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 Minimo.
*
* The Initial Developer of the Original Code is
* Doug Turner <dougt@meer.net>.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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 ***** */
#include "nsSimpleChromeHandler.h"
#include "nsIServiceManager.h"
#include "nsILocalFile.h"
#include "nsDirectoryServiceDefs.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsIURL.h"
#include "nsIIOService.h"
#include "nsNetUtil.h"
#include "nsURLHelper.h"
#include "nsIGenericFactory.h"
#include "nsSimpleChromeRegistry.h"
#include "nsURLHelper.h"
#include "nsStandardURL.h"
class nsSimpleChromeURL : public nsIFileURL
{
public:
nsSimpleChromeURL(nsIFile* file);
nsresult Init(PRUint32 urlType,
PRInt32 defaultPort,
const nsACString &spec,
const char *charset,
nsIURI *baseURI);
NS_DECL_ISUPPORTS
NS_DECL_NSIFILEURL
NS_FORWARD_SAFE_NSIURI(mStandardURL)
NS_FORWARD_SAFE_NSIURL(mStandardURL)
private:
nsCOMPtr<nsIFile> mChromeDir;
nsCOMPtr<nsIURL> mStandardURL;
};
nsSimpleChromeURL::nsSimpleChromeURL(nsIFile *file) : mChromeDir(file)
{
}
nsresult
nsSimpleChromeURL::Init(PRUint32 urlType,
PRInt32 defaultPort,
const nsACString &spec,
const char *charset,
nsIURI *baseURI)
{
nsresult rv;
static NS_DEFINE_CID(kStandardURLCID, NS_STANDARDURL_CID);
mStandardURL = do_CreateInstance(kStandardURLCID, &rv);
NS_ASSERTION(mStandardURL, "Could not create a Standard URL");
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIStandardURL> surl = do_QueryInterface(mStandardURL);
return surl->Init(urlType, defaultPort, spec, charset, baseURI);
}
NS_IMPL_ADDREF(nsSimpleChromeURL)
NS_IMPL_RELEASE(nsSimpleChromeURL)
// DO we need to implements a QI for equals?
NS_INTERFACE_MAP_BEGIN(nsSimpleChromeURL)
NS_INTERFACE_MAP_ENTRY(nsIURI)
NS_INTERFACE_MAP_ENTRY(nsIURL)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIFileURL, mChromeDir)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
nsSimpleChromeURL::SetFile(nsIFile * aFile) { return NS_ERROR_FAILURE; }
NS_IMETHODIMP
nsSimpleChromeURL::GetFile(nsIFile **result)
{
nsCAutoString fileName;
GetFileName(fileName);
nsCOMPtr<nsIFile> newFile;
mChromeDir->Clone(getter_AddRefs(newFile));
nsresult rv = newFile->AppendNative(fileName);
NS_IF_ADDREF(*result = newFile);
return rv;
}
nsSimpleChromeHandler::nsSimpleChromeHandler()
{
}
nsSimpleChromeHandler::~nsSimpleChromeHandler()
{
}
nsresult
nsSimpleChromeHandler::Init()
{
nsresult rv;
mIOService = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
rv = NS_GetSpecialDirectory(NS_APP_CHROME_DIR, getter_AddRefs(mChromeDir));
return rv;
}
NS_IMPL_THREADSAFE_ISUPPORTS2(nsSimpleChromeHandler,
nsIProtocolHandler,
nsISupportsWeakReference)
NS_IMETHODIMP
nsSimpleChromeHandler::GetScheme(nsACString &result)
{
result = "chrome";
return NS_OK;
}
NS_IMETHODIMP
nsSimpleChromeHandler::GetDefaultPort(PRInt32 *result)
{
*result = -1;
return NS_OK;
}
NS_IMETHODIMP
nsSimpleChromeHandler::GetProtocolFlags(PRUint32 *result)
{
*result = URI_STD;
return NS_OK;
}
static NS_DEFINE_CID(kStandardURLCID, NS_STANDARDURL_CID);
NS_IMETHODIMP
nsSimpleChromeHandler::NewURI(const nsACString &aSpec,
const char *aCharset,
nsIURI *aBaseURI,
nsIURI **result)
{
nsresult rv;
nsSimpleChromeURL *chromeURL = new nsSimpleChromeURL(mChromeDir);
if (!chromeURL)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(chromeURL);
rv = chromeURL->Init(nsIStandardURL::URLTYPE_STANDARD, -1, aSpec, aCharset, aBaseURI);
if (NS_SUCCEEDED(rv))
rv = CallQueryInterface(chromeURL, result);
NS_RELEASE(chromeURL);
return rv;
}
NS_IMETHODIMP
nsSimpleChromeHandler::NewChannel(nsIURI* uri, nsIChannel* *result)
{
nsCOMPtr<nsIURL> url = do_QueryInterface(uri);
if (!url) return NS_ERROR_UNEXPECTED;
nsCAutoString fileName;
url->GetFileName(fileName);
nsCOMPtr<nsIFile> newFile;
mChromeDir->Clone(getter_AddRefs(newFile));
newFile->AppendNative(fileName);
nsCOMPtr<nsIURI> resultingURI;
mIOService->NewFileURI(newFile, getter_AddRefs(resultingURI));
nsresult rv = NS_NewChannel(result,
resultingURI,
mIOService);
(*result)->SetOriginalURI(uri);
return rv;
}
NS_IMETHODIMP
nsSimpleChromeHandler::AllowPort(PRInt32 port, const char *scheme, PRBool *_retval)
{
// don't override anything.
*_retval = PR_FALSE;
return NS_OK;
}
#define NS_SIMPLECHROMEPROTOCOLHANDLER_CLASSNAME \
"nsSimpleChromeHandler"
#define NS_SIMPLECHROMEPROTOCOLHANDLER_CID \
{ /* f6b3c2cc-b2a3-11d7-82a0-000802c1aa31 */ \
0xf6b3c2cc, \
0xb2a3, \
0x11d7, \
{0x82, 0xa0, 0x00, 0x08, 0x02, 0xc1, 0xaa, 0x31} \
}
#define NS_SIMPLECHROMEREGISTRY_CID \
{ /* 5972e8f4-a3a6-44d0-8994-57bf4eeb066d */ \
0x5972e8f4, \
0xa3a6, \
0x44d0, \
{0x89, 0x94, 0x57, 0xbf, 0x4e, 0xeb, 0x06, 0x6d} \
}
NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsSimpleChromeHandler, Init)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsSimpleChromeRegistry)
static const nsModuleComponentInfo components[] =
{
{ "Simple Chrome Registry",
NS_SIMPLECHROMEREGISTRY_CID,
"@mozilla.org/chrome/chrome-registry;1",
nsSimpleChromeRegistryConstructor,
},
{ NS_SIMPLECHROMEPROTOCOLHANDLER_CLASSNAME,
NS_SIMPLECHROMEPROTOCOLHANDLER_CID,
NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "chrome",
nsSimpleChromeHandlerConstructor
},
};
NS_IMPL_NSGETMODULE(chromelite, components)