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     const struct ITaskbarListVtbl *lpVtbl;
  31     LONG refcount;
  32 };
  33
  34 /* IUnknown methods */
  35
  36 static HRESULT STDMETHODCALLTYPE taskbar_list_QueryInterface(ITaskbarList *iface, REFIID riid, void **object)
  37 {
  38     TRACE("iface %p, riid %s, object %p\n", iface, debugstr_guid(riid), object);
  39
  40     if (IsEqualGUID(riid, &IID_ITaskbarList)
  41             || IsEqualGUID(riid, &IID_IUnknown))
  42     {
  43         IUnknown_AddRef(iface);
  44         *object = iface;
  45         return S_OK;
  46     }
  47
  48     WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));
  49
  50     *object = NULL;
  51     return E_NOINTERFACE;
  52 }
  53
  54 static ULONG STDMETHODCALLTYPE taskbar_list_AddRef(ITaskbarList *iface)
  55 {
  56     struct taskbar_list *This = (struct taskbar_list *)iface;
  57     ULONG refcount = InterlockedIncrement(&This->refcount);
  58
  59     TRACE("%p increasing refcount to %u\n", This, refcount);
  60
  61     return refcount;
  62 }
  63
  64 static ULONG STDMETHODCALLTYPE taskbar_list_Release(ITaskbarList *iface)
  65 {
  66     struct taskbar_list *This = (struct taskbar_list *)iface;
  67     ULONG refcount = InterlockedDecrement(&This->refcount);
  68
  69     TRACE("%p decreasing refcount to %u\n", This, refcount);
  70
  71     if (!refcount)
  72     {
  73         HeapFree(GetProcessHeap(), 0, This);
  74         SHDOCVW_UnlockModule();
  75     }
  76
  77     return refcount;
  78 }
  79
  80 /* ITaskbarList methods */
  81
  82 static HRESULT STDMETHODCALLTYPE taskbar_list_HrInit(ITaskbarList *iface)
  83 {
  84     TRACE("iface %p\n", iface);
  85
  86     return S_OK;
  87 }
  88
  89 static HRESULT STDMETHODCALLTYPE taskbar_list_AddTab(ITaskbarList *iface, HWND hwnd)
  90 {
  91     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
  92
  93     return E_NOTIMPL;
  94 }
  95
  96 static HRESULT STDMETHODCALLTYPE taskbar_list_DeleteTab(ITaskbarList *iface, HWND hwnd)
  97 {
  98     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
  99
 100     return E_NOTIMPL;
 101 }
 102
 103 static HRESULT STDMETHODCALLTYPE taskbar_list_ActivateTab(ITaskbarList *iface, HWND hwnd)
 104 {
 105     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
 106
 107     return E_NOTIMPL;
 108 }
 109
 110 static HRESULT STDMETHODCALLTYPE taskbar_list_SetActiveAlt(ITaskbarList *iface, HWND hwnd)
 111 {
 112     FIXME("iface %p, hwnd %p stub!\n", iface, hwnd);
 113
 114     return E_NOTIMPL;
 115 }
 116
 117 static const struct ITaskbarListVtbl taskbar_list_vtbl =
 118 {
 119     /* IUnknown methods */
 120     taskbar_list_QueryInterface,
 121     taskbar_list_AddRef,
 122     taskbar_list_Release,
 123     /* ITaskbarList methods */
 124     taskbar_list_HrInit,
 125     taskbar_list_AddTab,
 126     taskbar_list_DeleteTab,
 127     taskbar_list_ActivateTab,
 128     taskbar_list_SetActiveAlt,
 129 };
 130
 131 HRESULT TaskbarList_Create(IUnknown *outer, REFIID riid, void **taskbar_list)
 132 {
 133     struct taskbar_list *object;
 134     HRESULT hr;
 135
 136     TRACE("outer %p, riid %s, taskbar_list %p\n", outer, debugstr_guid(riid), taskbar_list);
 137
 138     if (outer)
 139     {
 140         WARN("Aggregation not supported\n");
 141         *taskbar_list = NULL;
 142         return CLASS_E_NOAGGREGATION;
 143     }
 144
 145     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
 146     if (!object)
 147     {
 148         ERR("Failed to allocate taskbar list object memory\n");
 149         *taskbar_list = NULL;
 150         return E_OUTOFMEMORY;
 151     }
 152
 153     object->lpVtbl = &taskbar_list_vtbl;
 154     object->refcount = 0;
 155
 156     TRACE("Created ITaskbarList %p\n", object);
 157
 158     hr = ITaskbarList_QueryInterface((ITaskbarList *)object, riid, taskbar_list);
 159     if (FAILED(hr))
 160     {
 161         HeapFree(GetProcessHeap(), 0, object);
 162         return hr;
 163     }
 164
 165     SHDOCVW_LockModule();
 166
 167     return S_OK;
 168 }