pjs/uriloader/exthandler/unix/nsOSHelperAppService.h

145 строки
7.7 KiB
C++

/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Contributor(s):
* Scott MacGregor <mscott@netscape.com>
*/
#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 "nsCOMPtr.h"
class nsHashtable;
class nsILineInputStream;
class nsOSHelperAppService : public nsExternalHelperAppService
{
public:
nsOSHelperAppService();
virtual ~nsOSHelperAppService();
// override nsIExternalHelperAppService methods....
NS_IMETHOD LaunchAppWithTempFile(nsIMIMEInfo *aMIMEInfo, nsIFile * aTempFile);
// method overrides for mime.types and mime.info look up steps
already_AddRefed<nsIMIMEInfo> GetMIMEInfoFromOS(const char *aMimeType, const char *aFileExt);
// override nsIExternalProtocolService methods
NS_IMETHOD ExternalProtocolHandlerExists(const char * aProtocolScheme, PRBool * aHandlerExists);
NS_IMETHOD LoadUrl(nsIURI * aURL);
// GetFileTokenForPath must be implemented by each platform.
// platformAppPath --> a platform specific path to an application that we got out of the
// rdf data source. This can be a mac file spec, a unix path or a windows path depending on the platform
// aFile --> an nsIFile representation of that platform application path.
virtual nsresult GetFileTokenForPath(const PRUnichar * platformAppPath, nsIFile ** aFile);
protected:
already_AddRefed<nsIMIMEInfo> GetFromType(const char *aMimeType);
already_AddRefed<nsIMIMEInfo> GetFromExtension(const char *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,
PRUnichar** aFileLocation);
static nsresult LookUpTypeAndDescription(const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription);
static nsresult CreateInputStream(const nsAString& aFilename,
nsIFileInputStream ** aFileInputStream,
nsILineInputStream ** aLineInputStream,
nsAString& aBuffer,
PRBool * aNetscapeFormat,
PRBool * 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 DoLookUpHandlerAndDescription(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);
nsresult GetHandlerAppFromPrefs(const char* aScheme, nsIFile** aApp);
};
#endif // nsOSHelperAppService_h__