dlls/shdocvw/taskbarlist.c

   1 /*
   2  * Copyright 2009 Henri Verbeet for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  */
  19
  20 #include "config.h"
  21 #include "wine/port.h"
  22 #include "wine/debug.h"
  23
  24 #include "shdocvw.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(shdocvw);
  27
  28 struct taskbar_list
  29 {
  30     ITaskbarList ITaskbarList_iface;
  31     LONG refcount;
  32 };
  33
  34 static inline struct taskbar_list *impl_from_ITaskbarList(ITaskbarList *iface)
  35 {
  36     return CONTAINING_RECORD(iface, struct taskbar_list, ITaskbarList_iface);
  37 }
  38
  39 /* IUnknown methods */
  40
  41 static HRESULT STDMETHODCALLTYPE taskbar_list_QueryInterface(ITaskbarList *iface, REFIID riid, void **object)
  42 {
  43     TRACE("iface %p, riid %s, object %p\n", iface, debugstr_guid(riid), object);
  44
  45     if (IsEqualGUID(riid, &IID_ITaskbarList)
  46             || IsEqualGUID(riid, &IID_IUnknown))
  47     {
  48         IUnknown_AddRef(iface);
  49         *object = iface;
  50         return S_OK;
  51     }
  52
  53     WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));
  54
  55     *object = NULL;
  56     return E_NOINTERFACE;
  57 }
  58
  59 static ULONG STDMETHODCALLTYPE taskbar_list_AddRef(ITaskbarList *iface)
  60 {
  61     struct taskbar_list *This = impl_from_ITaskbarList(iface);
  62     ULONG refcount = InterlockedIncrement(&This->refcount);
  63
  64     TRACE("%p increasing refcount to %u\n", This, refcount);
  65
  66     return refcount;
  67 }
  68
  69 static ULONG STDMETHODCALLTYPE taskbar_list_Release(ITaskbarList *iface)
  70 {
  71     struct taskbar_list *This = impl_from_ITaskbarList(iface);
  72     ULONG refcount = InterlockedDecrement(&This->refcount);
  73
  74     TRACE("%p decreasing refcount to %u\n", This, refcount);
  75
  76     if (!refcount)
  77     {
  78         HeapFree(GetProcessHeap(), 0, This);
  79         SHDOCVW_UnlockModule();
  80     }
  81
  82     return refcount;
  83 }
  84
  85 /* ITaskbarList methods */
  86
  87 static HRESULT STDMETHODCALLTYPE taskbar_list_HrInit(ITaskbarList *iface)
  88 {
  89     TRACE("iface %p\n", iface);
  90
  91     return S_OK;
  92 }
  93
  94 static HRESULT STDMETHODCALLTYPE taskbar_list_AddTab(ITaskbarList *iface, HWND hwnd)
  95 {
  96     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
  97
  98     return E_NOTIMPL;
  99 }
 100
 101 static HRESULT STDMETHODCALLTYPE taskbar_list_DeleteTab(ITaskbarList *iface, HWND hwnd)
 102 {
 103     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
 104
 105     return E_NOTIMPL;
 106 }
 107
 108 static HRESULT STDMETHODCALLTYPE taskbar_list_ActivateTab(ITaskbarList *iface, HWND hwnd)
 109 {
 110     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
 111
 112     return E_NOTIMPL;
 113 }
 114
 115 static HRESULT STDMETHODCALLTYPE taskbar_list_SetActiveAlt(ITaskbarList *iface, HWND hwnd)
 116 {
 117     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
 118
 119     return E_NOTIMPL;
 120 }
 121
 122 static const struct ITaskbarListVtbl taskbar_list_vtbl =
 123 {
 124     /* IUnknown methods */
 125     taskbar_list_QueryInterface,
 126     taskbar_list_AddRef,
 127     taskbar_list_Release,
 128     /* ITaskbarList methods */
 129     taskbar_list_HrInit,
 130     taskbar_list_AddTab,
 131     taskbar_list_DeleteTab,
 132     taskbar_list_ActivateTab,
 133     taskbar_list_SetActiveAlt,
 134 };
 135
 136 HRESULT TaskbarList_Create(IUnknown *outer, REFIID riid, void **taskbar_list)
 137 {
 138     struct taskbar_list *object;
 139     HRESULT hr;
 140
 141     TRACE("outer %p, riid %s, taskbar_list %p\n", outer, debugstr_guid(riid), taskbar_list);
 142
 143     if (outer)
 144     {
 145         WARN("Aggregation not supported\n");
 146         *taskbar_list = NULL;
 147         return CLASS_E_NOAGGREGATION;
 148     }
 149
 150     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
 151     if (!object)
 152     {
 153         ERR("Failed to allocate taskbar list object memory\n");
 154         *taskbar_list = NULL;
 155         return E_OUTOFMEMORY;
 156     }
 157
 158     object->ITaskbarList_iface.lpVtbl = &taskbar_list_vtbl;
 159     object->refcount = 0;
 160
 161     TRACE("Created ITaskbarList %p\n", object);
 162
 163     hr = ITaskbarList_QueryInterface(&object->ITaskbarList_iface, riid, taskbar_list);
 164     if (FAILED(hr))
 165     {
 166         HeapFree(GetProcessHeap(), 0, object);
 167         return hr;
 168     }
 169
 170     SHDOCVW_LockModule();
 171
 172     return S_OK;
 173 }