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/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 */
#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"
#include <windows.h>
#ifdef _WIN32_WINNT
# undef _WIN32_WINNT
#define _WIN32_WINNT 0x0600
#include <shlobj.h>
class nsMIMEInfoWin;
class nsIMIMEInfo;
class nsOSHelperAppService : public nsExternalHelperAppService {
virtual ~nsOSHelperAppService();
// override nsIExternalProtocolService methods
NS_IMETHOD OSProtocolHandlerExists(const char* aProtocolScheme,
bool* aHandlerExists) override;
nsresult LoadUriInternal(nsIURI* aURL);
NS_IMETHOD GetApplicationDescription(const nsACString& aScheme,
nsAString& _retval) override;
NS_IMETHOD IsCurrentAppOSDefaultForProtocol(const nsACString& aScheme,
bool* _retval) override;
// method overrides for windows registry look up steps....
NS_IMETHOD GetMIMEInfoFromOS(const nsACString& aMIMEType,
const nsACString& aFileExt, bool* aFound,
nsIMIMEInfo** aMIMEInfo) override;
NS_IMETHOD GetProtocolHandlerInfoFromOS(const nsACString& aScheme,
bool* found,
nsIHandlerInfo** _retval);
virtual bool GetMIMETypeFromOSForExtension(const nsACString& aExtension,
nsACString& aMIMEType) override;
/** Get the string value of a registry value and store it in result.
* @return true on success, false on failure
static bool GetValueString(HKEY hKey, const char16_t* pValueName,
nsAString& result);
nsresult GetDefaultAppInfo(const nsAString& aTypeName,
nsAString& aDefaultDescription,
nsIFile** aDefaultApplication);
// Lookup a mime info by extension, using an optional type hint
already_AddRefed<nsMIMEInfoWin> GetByExtension(
const nsString& aFileExt, const char* aTypeHint = nullptr);
nsresult FindOSMimeInfoForType(const char* aMimeContentType, nsIURI* aURI,
char** aFileExtension,
nsIMIMEInfo** aMIMEInfo);
static nsresult GetMIMEInfoFromRegistry(const nsString& fileType,
nsIMIMEInfo* pInfo);
/// Looks up the type for the extension aExt and compares it to aType
static bool typeFromExtEquals(const char16_t* aExt, const char* aType);
IApplicationAssociationRegistration* mAppAssoc;
#endif // nsOSHelperAppService_h__