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2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
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15 : * The Original Code is XPCOM.
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17 : * The Initial Developer of the Original Code is
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19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
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22 : * Contributor(s):
23 : *
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37 :
38 : #ifndef nsServiceManagerUtils_h__
39 : #define nsServiceManagerUtils_h__
40 :
41 : #include "nsIServiceManager.h"
42 : #include "nsCOMPtr.h"
43 :
44 : inline
45 : const nsGetServiceByCID
46 : do_GetService(const nsCID& aCID)
47 : {
48 : return nsGetServiceByCID(aCID);
49 : }
50 :
51 : inline
52 : const nsGetServiceByCIDWithError
53 : do_GetService(const nsCID& aCID, nsresult* error)
54 : {
55 : return nsGetServiceByCIDWithError(aCID, error);
56 : }
57 :
58 : inline
59 : const nsGetServiceByContractID
60 24 : do_GetService(const char* aContractID)
61 : {
62 24 : return nsGetServiceByContractID(aContractID);
63 : }
64 :
65 : inline
66 : const nsGetServiceByContractIDWithError
67 0 : do_GetService( const char* aContractID, nsresult* error)
68 : {
69 0 : return nsGetServiceByContractIDWithError(aContractID, error);
70 : }
71 :
72 : class nsGetServiceFromCategory : public nsCOMPtr_helper
73 : {
74 : public:
75 : nsGetServiceFromCategory(const char* aCategory, const char* aEntry,
76 : nsresult* aErrorPtr)
77 : : mCategory(aCategory),
78 : mEntry(aEntry),
79 : mErrorPtr(aErrorPtr)
80 : {
81 : // nothing else to do
82 : }
83 :
84 : virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const;
85 : protected:
86 : const char* mCategory;
87 : const char* mEntry;
88 : nsresult* mErrorPtr;
89 : };
90 :
91 : inline
92 : const nsGetServiceFromCategory
93 : do_GetServiceFromCategory( const char* category, const char* entry,
94 : nsresult* error = 0)
95 : {
96 : return nsGetServiceFromCategory(category, entry, error);
97 : }
98 :
99 : NS_COM_GLUE nsresult
100 : CallGetService(const nsCID &aClass, const nsIID &aIID, void **aResult);
101 :
102 : NS_COM_GLUE nsresult
103 : CallGetService(const char *aContractID, const nsIID &aIID, void **aResult);
104 :
105 : // type-safe shortcuts for calling |GetService|
106 : template <class DestinationType>
107 : inline
108 : nsresult
109 : CallGetService( const nsCID &aClass,
110 : DestinationType** aDestination)
111 : {
112 : NS_PRECONDITION(aDestination, "null parameter");
113 :
114 : return CallGetService(aClass,
115 : NS_GET_TEMPLATE_IID(DestinationType),
116 : reinterpret_cast<void**>(aDestination));
117 : }
118 :
119 : template <class DestinationType>
120 : inline
121 : nsresult
122 : CallGetService( const char *aContractID,
123 : DestinationType** aDestination)
124 : {
125 : NS_PRECONDITION(aContractID, "null parameter");
126 : NS_PRECONDITION(aDestination, "null parameter");
127 :
128 : return CallGetService(aContractID,
129 : NS_GET_TEMPLATE_IID(DestinationType),
130 : reinterpret_cast<void**>(aDestination));
131 : }
132 :
133 : #endif
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