dlls/shell32/systray.c

   1 /*
   2  * Systray handling
   3  *
   4  * Copyright 1999 Kai Morich    <kai.morich@bigfoot.de>
   5  * Copyright 2004 Mike Hearn, for CodeWeavers
   6  * Copyright 2005 Robert Shearman
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #define NONAMELESSUNION
  24
  25 #include <stdarg.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winnls.h"
  31 #include "winuser.h"
  32 #include "shellapi.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(systray);
  37
  38 static const WCHAR classname[] = /* Shell_TrayWnd */ {'S','h','e','l','l','_','T','r','a','y','W','n','d','\0'};
  39
  40 struct notify_data  /* platform-independent format for NOTIFYICONDATA */
  41 {
  42     LONG  hWnd;
  43     UINT  uID;
  44     UINT  uFlags;
  45     UINT  uCallbackMessage;
  46     WCHAR szTip[128];
  47     DWORD dwState;
  48     DWORD dwStateMask;
  49     WCHAR szInfo[256];
  50     union {
  51         UINT uTimeout;
  52         UINT uVersion;
  53     } u;
  54     WCHAR szInfoTitle[64];
  55     DWORD dwInfoFlags;
  56     GUID  guidItem;
  57     /* data for the icon bitmap */
  58     UINT width;
  59     UINT height;
  60     UINT planes;
  61     UINT bpp;
  62 };
  63
  64 /*************************************************************************
  65  * Shell_NotifyIcon                     [SHELL32.296]
  66  * Shell_NotifyIconA                    [SHELL32.297]
  67  */
  68 BOOL WINAPI Shell_NotifyIconA(DWORD dwMessage, PNOTIFYICONDATAA pnid)
  69 {
  70     NOTIFYICONDATAW nidW;
  71     INT cbSize;
  72
  73     /* Validate the cbSize as Windows XP does */
  74     if (pnid->cbSize != NOTIFYICONDATAA_V1_SIZE &&
  75         pnid->cbSize != NOTIFYICONDATAA_V2_SIZE &&
  76         pnid->cbSize != NOTIFYICONDATAA_V3_SIZE &&
  77         pnid->cbSize != sizeof(NOTIFYICONDATAA))
  78     {
  79         WARN("Invalid cbSize (%d) - using only Win95 fields (size=%d)\n",
  80             pnid->cbSize, NOTIFYICONDATAA_V1_SIZE);
  81         cbSize = NOTIFYICONDATAA_V1_SIZE;
  82     }
  83     else
  84         cbSize = pnid->cbSize;
  85
  86     ZeroMemory(&nidW, sizeof(nidW));
  87     nidW.cbSize = sizeof(nidW);
  88     nidW.hWnd   = pnid->hWnd;
  89     nidW.uID    = pnid->uID;
  90     nidW.uFlags = pnid->uFlags;
  91     nidW.uCallbackMessage = pnid->uCallbackMessage;
  92     nidW.hIcon  = pnid->hIcon;
  93
  94     /* szTip */
  95     if (pnid->uFlags & NIF_TIP)
  96         MultiByteToWideChar(CP_ACP, 0, pnid->szTip, -1, nidW.szTip, sizeof(nidW.szTip)/sizeof(WCHAR));
  97
  98     if (cbSize >= NOTIFYICONDATAA_V2_SIZE)
  99     {
 100         nidW.dwState      = pnid->dwState;
 101         nidW.dwStateMask  = pnid->dwStateMask;
 102
 103         /* szInfo, szInfoTitle */
 104         if (pnid->uFlags & NIF_INFO)
 105         {
 106             MultiByteToWideChar(CP_ACP, 0, pnid->szInfo, -1,  nidW.szInfo, sizeof(nidW.szInfo)/sizeof(WCHAR));
 107             MultiByteToWideChar(CP_ACP, 0, pnid->szInfoTitle, -1, nidW.szInfoTitle, sizeof(nidW.szInfoTitle)/sizeof(WCHAR));
 108         }
 109
 110         nidW.u.uTimeout = pnid->u.uTimeout;
 111         nidW.dwInfoFlags = pnid->dwInfoFlags;
 112     }
 113
 114     if (cbSize >= NOTIFYICONDATAA_V3_SIZE)
 115         nidW.guidItem = pnid->guidItem;
 116
 117     if (cbSize >= sizeof(NOTIFYICONDATAA))
 118         nidW.hBalloonIcon = pnid->hBalloonIcon;
 119     return Shell_NotifyIconW(dwMessage, &nidW);
 120 }
 121
 122 /*************************************************************************
 123  * Shell_NotifyIconW                    [SHELL32.298]
 124  */
 125 BOOL WINAPI Shell_NotifyIconW(DWORD dwMessage, PNOTIFYICONDATAW nid)
 126 {
 127     HWND tray;
 128     COPYDATASTRUCT cds;
 129     struct notify_data data_buffer;
 130     struct notify_data *data = &data_buffer;
 131     BOOL ret;
 132
 133     TRACE("dwMessage = %d, nid->cbSize=%d\n", dwMessage, nid->cbSize);
 134
 135     /* Validate the cbSize so that WM_COPYDATA doesn't crash the application */
 136     if (nid->cbSize != NOTIFYICONDATAW_V1_SIZE &&
 137         nid->cbSize != NOTIFYICONDATAW_V2_SIZE &&
 138         nid->cbSize != NOTIFYICONDATAW_V3_SIZE &&
 139         nid->cbSize != sizeof(NOTIFYICONDATAW))
 140     {
 141         NOTIFYICONDATAW newNid;
 142
 143         WARN("Invalid cbSize (%d) - using only Win95 fields (size=%d)\n",
 144             nid->cbSize, NOTIFYICONDATAW_V1_SIZE);
 145         CopyMemory(&newNid, nid, NOTIFYICONDATAW_V1_SIZE);
 146         newNid.cbSize = NOTIFYICONDATAW_V1_SIZE;
 147         return Shell_NotifyIconW(dwMessage, &newNid);
 148     }
 149
 150     tray = FindWindowExW(0, NULL, classname, NULL);
 151     if (!tray) return FALSE;
 152
 153     cds.dwData = dwMessage;
 154     cds.cbData = sizeof(*data);
 155     memset( data, 0, sizeof(*data) );
 156
 157     /* FIXME: if statement only needed because we don't support interprocess
 158      * icon handles */
 159     if (nid->uFlags & NIF_ICON)
 160     {
 161         ICONINFO iconinfo;
 162         BITMAP bmMask;
 163         BITMAP bmColour;
 164         LONG cbMaskBits;
 165         LONG cbColourBits = 0;
 166         char *buffer;
 167
 168         if (!GetIconInfo(nid->hIcon, &iconinfo))
 169             goto noicon;
 170
 171         if (!GetObjectW(iconinfo.hbmMask, sizeof(bmMask), &bmMask) ||
 172             (iconinfo.hbmColor && !GetObjectW(iconinfo.hbmColor, sizeof(bmColour), &bmColour)))
 173         {
 174             DeleteObject(iconinfo.hbmMask);
 175             if (iconinfo.hbmColor) DeleteObject(iconinfo.hbmColor);
 176             goto noicon;
 177         }
 178
 179         cbMaskBits = (bmMask.bmPlanes * bmMask.bmWidth * bmMask.bmHeight * bmMask.bmBitsPixel + 15) / 16 * 2;
 180         if (iconinfo.hbmColor)
 181             cbColourBits = (bmColour.bmPlanes * bmColour.bmWidth * bmColour.bmHeight * bmColour.bmBitsPixel + 15) / 16 * 2;
 182         cds.cbData = sizeof(*data) + cbMaskBits + cbColourBits;
 183         buffer = HeapAlloc(GetProcessHeap(), 0, cds.cbData);
 184         if (!buffer)
 185         {
 186             DeleteObject(iconinfo.hbmMask);
 187             if (iconinfo.hbmColor) DeleteObject(iconinfo.hbmColor);
 188             return FALSE;
 189         }
 190
 191         data = (struct notify_data *)buffer;
 192         memset( data, 0, sizeof(*data) );
 193         buffer += sizeof(*data);
 194         GetBitmapBits(iconinfo.hbmMask, cbMaskBits, buffer);
 195         if (!iconinfo.hbmColor)
 196         {
 197             data->width  = bmMask.bmWidth;
 198             data->height = bmMask.bmHeight / 2;
 199             data->planes = 1;
 200             data->bpp    = 1;
 201         }
 202         else
 203         {
 204             data->width  = bmColour.bmWidth;
 205             data->height = bmColour.bmHeight;
 206             data->planes = bmColour.bmPlanes;
 207             data->bpp    = bmColour.bmBitsPixel;
 208             buffer += cbMaskBits;
 209             GetBitmapBits(iconinfo.hbmColor, cbColourBits, buffer);
 210             DeleteObject(iconinfo.hbmColor);
 211         }
 212         DeleteObject(iconinfo.hbmMask);
 213     }
 214
 215 noicon:
 216     data->hWnd   = HandleToLong( nid->hWnd );
 217     data->uID    = nid->uID;
 218     data->uFlags = nid->uFlags;
 219     if (data->uFlags & NIF_MESSAGE)
 220         data->uCallbackMessage = nid->uCallbackMessage;
 221     if (data->uFlags & NIF_TIP)
 222         lstrcpynW( data->szTip, nid->szTip, sizeof(data->szTip)/sizeof(WCHAR) );
 223     if (data->uFlags & NIF_STATE)
 224     {
 225         data->dwState     = nid->dwState;
 226         data->dwStateMask = nid->dwStateMask;
 227     }
 228     if (data->uFlags & NIF_INFO)
 229     {
 230         lstrcpynW( data->szInfo, nid->szInfo, sizeof(data->szInfo)/sizeof(WCHAR) );
 231         lstrcpynW( data->szInfoTitle, nid->szInfoTitle, sizeof(data->szInfoTitle)/sizeof(WCHAR) );
 232         data->u.uTimeout  = nid->u.uTimeout;
 233         data->dwInfoFlags = nid->dwInfoFlags;
 234     }
 235     if (data->uFlags & NIF_GUID)
 236         data->guidItem = nid->guidItem;
 237     /* FIXME: balloon icon */
 238
 239     cds.lpData = data;
 240     ret = SendMessageW(tray, WM_COPYDATA, (WPARAM)nid->hWnd, (LPARAM)&cds);
 241     if (data != &data_buffer) HeapFree( GetProcessHeap(), 0, data );
 242     return ret;
 243 }