2 * IEnumMoniker implementation
4 * Copyright 2003 Robert Shearman
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "quartz_private.h"
25 #include "wine/debug.h"
27 WINE_DEFAULT_DEBUG_CHANNEL(quartz
);
29 typedef struct EnumMonikerImpl
31 IEnumMoniker IEnumMoniker_iface
;
33 IMoniker
** ppMoniker
;
38 static const IEnumMonikerVtbl EnumMonikerImpl_Vtbl
;
40 static inline EnumMonikerImpl
*impl_from_IEnumMoniker(IEnumMoniker
*iface
)
42 return CONTAINING_RECORD(iface
, EnumMonikerImpl
, IEnumMoniker_iface
);
45 static ULONG WINAPI
EnumMonikerImpl_AddRef(LPENUMMONIKER iface
);
47 HRESULT
EnumMonikerImpl_Create(IMoniker
** ppMoniker
, ULONG nMonikerCount
, IEnumMoniker
** ppEnum
)
49 /* NOTE: assumes that array of IMonikers has already been AddRef'd
50 * I.e. this function does not AddRef the array of incoming
52 EnumMonikerImpl
* pemi
= CoTaskMemAlloc(sizeof(EnumMonikerImpl
));
54 TRACE("(%p, %d, %p)\n", ppMoniker
, nMonikerCount
, ppEnum
);
61 pemi
->IEnumMoniker_iface
.lpVtbl
= &EnumMonikerImpl_Vtbl
;
63 pemi
->ppMoniker
= CoTaskMemAlloc(nMonikerCount
* sizeof(IMoniker
*));
64 memcpy(pemi
->ppMoniker
, ppMoniker
, nMonikerCount
*sizeof(IMoniker
*));
65 pemi
->nMonikerCount
= nMonikerCount
;
68 *ppEnum
= &pemi
->IEnumMoniker_iface
;
73 /**********************************************************************
74 * IEnumMoniker_QueryInterface (also IUnknown)
76 static HRESULT WINAPI
EnumMonikerImpl_QueryInterface(
81 EnumMonikerImpl
*This
= impl_from_IEnumMoniker(iface
);
82 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid
));
84 if (This
== NULL
|| ppvObj
== NULL
) return E_POINTER
;
86 if (IsEqualGUID(riid
, &IID_IUnknown
) ||
87 IsEqualGUID(riid
, &IID_IEnumMoniker
))
90 EnumMonikerImpl_AddRef(iface
);
95 FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid
));
99 /**********************************************************************
100 * IEnumMoniker_AddRef (also IUnknown)
102 static ULONG WINAPI
EnumMonikerImpl_AddRef(LPENUMMONIKER iface
)
104 EnumMonikerImpl
*This
= impl_from_IEnumMoniker(iface
);
107 if (This
== NULL
) return E_POINTER
;
109 ref
= InterlockedIncrement(&This
->ref
);
111 TRACE("(%p)->() AddRef from %d\n", iface
, ref
- 1);
116 /**********************************************************************
117 * IEnumMoniker_Release (also IUnknown)
119 static ULONG WINAPI
EnumMonikerImpl_Release(LPENUMMONIKER iface
)
121 EnumMonikerImpl
*This
= impl_from_IEnumMoniker(iface
);
122 ULONG ref
= InterlockedDecrement(&This
->ref
);
124 TRACE("(%p)->() Release from %d\n", iface
, ref
+ 1);
130 for (i
= 0; i
< This
->nMonikerCount
; i
++)
131 IMoniker_Release(This
->ppMoniker
[i
]);
133 CoTaskMemFree(This
->ppMoniker
);
134 This
->ppMoniker
= NULL
;
141 static HRESULT WINAPI
EnumMonikerImpl_Next(LPENUMMONIKER iface
, ULONG celt
, IMoniker
** rgelt
, ULONG
* pceltFetched
)
144 EnumMonikerImpl
*This
= impl_from_IEnumMoniker(iface
);
146 TRACE("(%p)->(%d, %p, %p)\n", iface
, celt
, rgelt
, pceltFetched
);
148 for (fetched
= 0; (This
->index
+ fetched
< This
->nMonikerCount
) && (fetched
< celt
); fetched
++)
150 rgelt
[fetched
] = This
->ppMoniker
[This
->index
+ fetched
];
151 IMoniker_AddRef(rgelt
[fetched
]);
154 This
->index
+= fetched
;
156 TRACE("-- fetched %d\n", fetched
);
159 *pceltFetched
= fetched
;
167 static HRESULT WINAPI
EnumMonikerImpl_Skip(LPENUMMONIKER iface
, ULONG celt
)
169 EnumMonikerImpl
*This
= impl_from_IEnumMoniker(iface
);
171 TRACE("(%p)->(%d)\n", iface
, celt
);
178 static HRESULT WINAPI
EnumMonikerImpl_Reset(LPENUMMONIKER iface
)
180 EnumMonikerImpl
*This
= impl_from_IEnumMoniker(iface
);
182 TRACE("(%p)->()\n", iface
);
189 static HRESULT WINAPI
EnumMonikerImpl_Clone(LPENUMMONIKER iface
, IEnumMoniker
** ppenum
)
191 FIXME("(%p)->(%p): stub\n", iface
, ppenum
);
196 /**********************************************************************
199 static const IEnumMonikerVtbl EnumMonikerImpl_Vtbl
=
201 EnumMonikerImpl_QueryInterface
,
202 EnumMonikerImpl_AddRef
,
203 EnumMonikerImpl_Release
,
204 EnumMonikerImpl_Next
,
205 EnumMonikerImpl_Skip
,
206 EnumMonikerImpl_Reset
,
207 EnumMonikerImpl_Clone