gecko/uriloader/exthandler/os2/nsOSHelperAppService.h
2012-05-21 12:12:37 +01:00

131 lines
7.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 sts=2 et cin: */
/* 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/. */
#ifndef nsOSHelperAppService_h__
#define nsOSHelperAppService_h__
// The OS helper app service is a subclass of nsExternalHelperAppService and is implemented on each
// platform. It contains platform specific code for finding helper applications for a given mime type
// in addition to launching those applications.
#include "nsExternalHelperAppService.h"
#include "nsCExternalHandlerService.h"
#include "nsMIMEInfoImpl.h"
#include "nsCOMPtr.h"
#define LOG(args) PR_LOG(mLog, PR_LOG_DEBUG, args)
#define LOG_ENABLED() PR_LOG_TEST(mLog, PR_LOG_DEBUG)
class nsHashtable;
class nsILineInputStream;
class nsMIMEInfoOS2;
class nsOSHelperAppService : public nsExternalHelperAppService
{
public:
nsOSHelperAppService();
virtual ~nsOSHelperAppService();
// method overrides for mime.types and mime.info look up steps
NS_IMETHOD GetFromTypeAndExtension(const nsACString& aMIMEType,
const nsACString& aFileExt,
nsIMIMEInfo **_retval);
already_AddRefed<nsIMIMEInfo> GetMIMEInfoFromOS(const nsACString& aMimeType,
const nsACString& aFileExt,
bool *aFound);
NS_IMETHOD GetProtocolHandlerInfoFromOS(const nsACString &aScheme,
bool *found,
nsIHandlerInfo **_retval);
// override nsIExternalProtocolService methods
NS_IMETHODIMP GetApplicationDescription(const nsACString& aScheme, nsAString& _retval);
nsresult OSProtocolHandlerExists(const char * aProtocolScheme, bool * aHandlerExists);
protected:
already_AddRefed<nsMIMEInfoOS2> GetFromType(const nsCString& aMimeType);
already_AddRefed<nsMIMEInfoOS2> GetFromExtension(const nsCString& aFileExt);
private:
// Helper methods which have to access static members
static nsresult UnescapeCommand(const nsAString& aEscapedCommand,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsACString& aUnEscapedCommand);
static nsresult GetFileLocation(const char* aPrefName,
const char* aEnvVarName,
nsAString& aFileLocation);
static nsresult LookUpTypeAndDescription(const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription);
static nsresult CreateInputStream(const nsAString& aFilename,
nsIFileInputStream ** aFileInputStream,
nsILineInputStream ** aLineInputStream,
nsACString& aBuffer,
bool * aNetscapeFormat,
bool * aMore);
static nsresult GetTypeAndDescriptionFromMimetypesFile(const nsAString& aFilename,
const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription);
static nsresult LookUpExtensionsAndDescription(const nsAString& aMajorType,
const nsAString& aMinorType,
nsAString& aFileExtensions,
nsAString& aDescription);
static nsresult GetExtensionsAndDescriptionFromMimetypesFile(const nsAString& aFilename,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsAString& aFileExtensions,
nsAString& aDescription);
static nsresult ParseNetscapeMIMETypesEntry(const nsAString& aEntry,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
nsAString& aExtensions,
nsAString::const_iterator& aDescriptionStart,
nsAString::const_iterator& aDescriptionEnd);
static nsresult ParseNormalMIMETypesEntry(const nsAString& aEntry,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
nsAString& aExtensions,
nsAString::const_iterator& aDescriptionStart,
nsAString::const_iterator& aDescriptionEnd);
static nsresult LookUpHandlerAndDescription(const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsAString& aHandler,
nsAString& aDescription,
nsAString& aMozillaFlags);
static nsresult GetHandlerAndDescriptionFromMailcapFile(const nsAString& aFilename,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsAString& aHandler,
nsAString& aDescription,
nsAString& aMozillaFlags);
};
#define MAXINIPARAMLENGTH 1024 // max length of OS/2 INI key for application parameters
// helper function for access to OS2.INI
nsresult GetApplicationAndParametersFromINI(const nsACString& aProtocol,
char* app, unsigned long appLength,
char* param, unsigned long paramLength);
#endif // nsOSHelperAppService_h__