dlls/winex11.drv/systray.c

   1 /*
   2  * X11 system tray management
   3  *
   4  * Copyright (C) 2004 Mike Hearn, for CodeWeavers
   5  * Copyright (C) 2005 Robert Shearman
   6  * Copyright (C) 2008 Alexandre Julliard
   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 #include "config.h"
  24
  25 #include <assert.h>
  26 #include <stdarg.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32
  33 #include <X11/Xlib.h>
  34
  35 #define NONAMELESSUNION
  36 #include "windef.h"
  37 #include "winbase.h"
  38 #include "wingdi.h"
  39 #include "winuser.h"
  40 #include "commctrl.h"
  41 #include "shellapi.h"
  42
  43 #include "x11drv.h"
  44 #include "wine/list.h"
  45 #include "wine/debug.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(systray);
  48
  49 /* an individual systray icon */
  50 struct tray_icon
  51 {
  52     struct list    entry;
  53     HICON          image;    /* the image to render */
  54     HWND           owner;    /* the HWND passed in to the Shell_NotifyIcon call */
  55     HWND           window;   /* the adaptor window */
  56     BOOL           layered;  /* whether we are using a layered window */
  57     HWND           tooltip;  /* Icon tooltip */
  58     UINT           state;    /* state flags */
  59     UINT           id;       /* the unique id given by the app */
  60     UINT           callback_message;
  61     int            display;  /* display index, or -1 if hidden */
  62     WCHAR          tiptext[128];    /* tooltip text */
  63     WCHAR          info_text[256];  /* info balloon text */
  64     WCHAR          info_title[64];  /* info balloon title */
  65     UINT           info_flags;      /* flags for info balloon */
  66     UINT           info_timeout;    /* timeout for info balloon */
  67     HICON          info_icon;       /* info balloon icon */
  68     UINT           version;         /* notify icon api version */
  69 };
  70
  71 static struct list icon_list = LIST_INIT( icon_list );
  72
  73 static const WCHAR icon_classname[] = {'_','_','w','i','n','e','x','1','1','_','t','r','a','y','_','i','c','o','n',0};
  74 static const WCHAR tray_classname[] = {'_','_','w','i','n','e','x','1','1','_','s','t','a','n','d','a','l','o','n','e','_','t','r','a','y',0};
  75
  76 static BOOL show_icon( struct tray_icon *icon );
  77 static BOOL hide_icon( struct tray_icon *icon );
  78 static BOOL delete_icon( struct tray_icon *icon );
  79
  80 #define SYSTEM_TRAY_REQUEST_DOCK  0
  81 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
  82 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
  83
  84 Atom systray_atom = 0;
  85
  86 #define MIN_DISPLAYED 8
  87 #define ICON_BORDER 2
  88
  89 #define BALLOON_CREATE_TIMER 1
  90 #define BALLOON_SHOW_TIMER   2
  91
  92 #define BALLOON_CREATE_TIMEOUT   2000
  93 #define BALLOON_SHOW_MIN_TIMEOUT 10000
  94 #define BALLOON_SHOW_MAX_TIMEOUT 30000
  95
  96 static struct tray_icon *balloon_icon;
  97 static HWND balloon_window;
  98 static POINT balloon_pos;
  99
 100 /* stand-alone tray window */
 101 static HWND standalone_tray;
 102 static int icon_cx, icon_cy;
 103 static unsigned int nb_displayed;
 104
 105 /* retrieves icon record by owner window and ID */
 106 static struct tray_icon *get_icon(HWND owner, UINT id)
 107 {
 108     struct tray_icon *this;
 109
 110     LIST_FOR_EACH_ENTRY( this, &icon_list, struct tray_icon, entry )
 111         if ((this->id == id) && (this->owner == owner)) return this;
 112     return NULL;
 113 }
 114
 115 static void init_common_controls(void)
 116 {
 117     static BOOL initialized = FALSE;
 118
 119     if (!initialized)
 120     {
 121         INITCOMMONCONTROLSEX init_tooltip;
 122
 123         init_tooltip.dwSize = sizeof(INITCOMMONCONTROLSEX);
 124         init_tooltip.dwICC = ICC_TAB_CLASSES;
 125
 126         InitCommonControlsEx(&init_tooltip);
 127         initialized = TRUE;
 128     }
 129 }
 130
 131 /* create tooltip window for icon */
 132 static void create_tooltip(struct tray_icon *icon)
 133 {
 134     init_common_controls();
 135     icon->tooltip = CreateWindowExW( WS_EX_TOPMOST, TOOLTIPS_CLASSW, NULL,
 136                                      WS_POPUP | TTS_ALWAYSTIP,
 137                                      CW_USEDEFAULT, CW_USEDEFAULT,
 138                                      CW_USEDEFAULT, CW_USEDEFAULT,
 139                                      icon->window, NULL, NULL, NULL);
 140     if (icon->tooltip)
 141     {
 142         TTTOOLINFOW ti;
 143         ZeroMemory(&ti, sizeof(ti));
 144         ti.cbSize = sizeof(TTTOOLINFOW);
 145         ti.uFlags = TTF_SUBCLASS | TTF_IDISHWND;
 146         ti.hwnd = icon->window;
 147         ti.uId = (UINT_PTR)icon->window;
 148         ti.lpszText = icon->tiptext;
 149         SendMessageW(icon->tooltip, TTM_ADDTOOLW, 0, (LPARAM)&ti);
 150     }
 151 }
 152
 153 void update_systray_balloon_position(void)
 154 {
 155     RECT rect;
 156     POINT pos;
 157
 158     if (!balloon_icon) return;
 159     GetWindowRect( balloon_icon->window, &rect );
 160     pos.x = (rect.left + rect.right) / 2;
 161     pos.y = (rect.top + rect.bottom) / 2;
 162     if (pos.x == balloon_pos.x && pos.y == balloon_pos.y) return;  /* nothing changed */
 163     balloon_pos = pos;
 164     SendMessageW( balloon_window, TTM_TRACKPOSITION, 0, MAKELONG( pos.x, pos.y ));
 165 }
 166
 167 static void balloon_create_timer( struct tray_icon *icon )
 168 {
 169     TTTOOLINFOW ti;
 170
 171     init_common_controls();
 172     balloon_window = CreateWindowExW( WS_EX_TOPMOST, TOOLTIPS_CLASSW, NULL,
 173                                       WS_POPUP | TTS_ALWAYSTIP | TTS_NOPREFIX | TTS_BALLOON | TTS_CLOSE,
 174                                       CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
 175                                       icon->window, NULL, NULL, NULL);
 176
 177     memset( &ti, 0, sizeof(ti) );
 178     ti.cbSize = sizeof(TTTOOLINFOW);
 179     ti.hwnd = icon->window;
 180     ti.uId = (UINT_PTR)icon->window;
 181     ti.uFlags = TTF_TRACK | TTF_IDISHWND;
 182     ti.lpszText = icon->info_text;
 183     SendMessageW( balloon_window, TTM_ADDTOOLW, 0, (LPARAM)&ti );
 184     if ((icon->info_flags & NIIF_ICONMASK) == NIIF_USER)
 185         SendMessageW( balloon_window, TTM_SETTITLEW, (WPARAM)icon->info_icon, (LPARAM)icon->info_title );
 186     else
 187         SendMessageW( balloon_window, TTM_SETTITLEW, icon->info_flags, (LPARAM)icon->info_title );
 188     balloon_icon = icon;
 189     balloon_pos.x = balloon_pos.y = MAXLONG;
 190     update_systray_balloon_position();
 191     SendMessageW( balloon_window, TTM_TRACKACTIVATE, TRUE, (LPARAM)&ti );
 192     KillTimer( icon->window, BALLOON_CREATE_TIMER );
 193     SetTimer( icon->window, BALLOON_SHOW_TIMER, icon->info_timeout, NULL );
 194 }
 195
 196 static BOOL show_balloon( struct tray_icon *icon )
 197 {
 198     if (standalone_tray && !show_systray) return FALSE;  /* no systray window */
 199     if (!icon->window) return FALSE;  /* not displayed */
 200     if (!icon->info_text[0]) return FALSE;  /* no balloon */
 201     balloon_icon = icon;
 202     SetTimer( icon->window, BALLOON_CREATE_TIMER, BALLOON_CREATE_TIMEOUT, NULL );
 203     return TRUE;
 204 }
 205
 206 static void hide_balloon(void)
 207 {
 208     if (!balloon_icon) return;
 209     if (balloon_window)
 210     {
 211         KillTimer( balloon_icon->window, BALLOON_SHOW_TIMER );
 212         DestroyWindow( balloon_window );
 213         balloon_window = 0;
 214     }
 215     else KillTimer( balloon_icon->window, BALLOON_CREATE_TIMER );
 216     balloon_icon = NULL;
 217 }
 218
 219 static void show_next_balloon(void)
 220 {
 221     struct tray_icon *icon;
 222
 223     LIST_FOR_EACH_ENTRY( icon, &icon_list, struct tray_icon, entry )
 224         if (show_balloon( icon )) break;
 225 }
 226
 227 static void update_balloon( struct tray_icon *icon )
 228 {
 229     if (balloon_icon == icon)
 230     {
 231         hide_balloon();
 232         show_balloon( icon );
 233     }
 234     else if (!balloon_icon)
 235     {
 236         if (!show_balloon( icon )) return;
 237     }
 238     if (!balloon_icon) show_next_balloon();
 239 }
 240
 241 static void balloon_timer(void)
 242 {
 243     if (balloon_icon) balloon_icon->info_text[0] = 0;  /* clear text now that balloon has been shown */
 244     hide_balloon();
 245     show_next_balloon();
 246 }
 247
 248 /* synchronize tooltip text with tooltip window */
 249 static void update_tooltip_text(struct tray_icon *icon)
 250 {
 251     TTTOOLINFOW ti;
 252
 253     ZeroMemory(&ti, sizeof(ti));
 254     ti.cbSize = sizeof(TTTOOLINFOW);
 255     ti.uFlags = TTF_SUBCLASS | TTF_IDISHWND;
 256     ti.hwnd = icon->window;
 257     ti.uId = (UINT_PTR)icon->window;
 258     ti.lpszText = icon->tiptext;
 259
 260     SendMessageW(icon->tooltip, TTM_UPDATETIPTEXTW, 0, (LPARAM)&ti);
 261 }
 262
 263 /* get the size of the stand-alone tray window */
 264 static SIZE get_window_size(void)
 265 {
 266     SIZE size;
 267     RECT rect;
 268
 269     rect.left = 0;
 270     rect.top = 0;
 271     rect.right = icon_cx * max( nb_displayed, MIN_DISPLAYED );
 272     rect.bottom = icon_cy;
 273     AdjustWindowRect( &rect, WS_CAPTION, FALSE );
 274     size.cx = rect.right - rect.left;
 275     size.cy = rect.bottom - rect.top;
 276     return size;
 277 }
 278
 279 /* get the position of an icon in the stand-alone tray */
 280 static POINT get_icon_pos( struct tray_icon *icon )
 281 {
 282     POINT pos;
 283
 284     pos.x = icon_cx * icon->display;
 285     pos.y = 0;
 286     return pos;
 287 }
 288
 289 /* window procedure for the standalone tray window */
 290 static LRESULT WINAPI standalone_tray_wndproc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
 291 {
 292     switch (msg)
 293     {
 294     case WM_MOVE:
 295         update_systray_balloon_position();
 296         break;
 297     case WM_CLOSE:
 298         ShowWindow( hwnd, SW_HIDE );
 299         hide_balloon();
 300         show_systray = FALSE;
 301         return 0;
 302     case WM_DESTROY:
 303         standalone_tray = 0;
 304         break;
 305     }
 306     return DefWindowProcW( hwnd, msg, wparam, lparam );
 307 }
 308
 309 /* add an icon to the standalone tray window */
 310 static void add_to_standalone_tray( struct tray_icon *icon )
 311 {
 312     SIZE size;
 313     POINT pos;
 314
 315     if (!standalone_tray)
 316     {
 317         static const WCHAR winname[] = {'W','i','n','e',' ','S','y','s','t','e','m',' ','T','r','a','y',0};
 318
 319         size = get_window_size();
 320         standalone_tray = CreateWindowExW( 0, tray_classname, winname, WS_CAPTION | WS_SYSMENU,
 321                                            CW_USEDEFAULT, CW_USEDEFAULT, size.cx, size.cy, 0, 0, 0, 0 );
 322         if (!standalone_tray) return;
 323     }
 324
 325     icon->display = nb_displayed;
 326     pos = get_icon_pos( icon );
 327     icon->window = CreateWindowW( icon_classname, NULL, WS_CHILD | WS_VISIBLE,
 328                                   pos.x, pos.y, icon_cx, icon_cy, standalone_tray, NULL, NULL, icon );
 329     if (!icon->window)
 330     {
 331         icon->display = -1;
 332         return;
 333     }
 334     create_tooltip( icon );
 335
 336     nb_displayed++;
 337     size = get_window_size();
 338     SetWindowPos( standalone_tray, 0, 0, 0, size.cx, size.cy, SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER );
 339     if (nb_displayed == 1 && show_systray) ShowWindow( standalone_tray, SW_SHOWNA );
 340     TRACE( "added %u now %d icons\n", icon->id, nb_displayed );
 341 }
 342
 343 /* remove an icon from the stand-alone tray */
 344 static void remove_from_standalone_tray( struct tray_icon *icon )
 345 {
 346     struct tray_icon *ptr;
 347     POINT pos;
 348
 349     if (icon->display == -1) return;
 350
 351     LIST_FOR_EACH_ENTRY( ptr, &icon_list, struct tray_icon, entry )
 352     {
 353         if (ptr == icon) continue;
 354         if (ptr->display < icon->display) continue;
 355         ptr->display--;
 356         pos = get_icon_pos( ptr );
 357         SetWindowPos( ptr->window, 0, pos.x, pos.y, 0, 0, SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOZORDER );
 358     }
 359     icon->display = -1;
 360     if (!--nb_displayed) ShowWindow( standalone_tray, SW_HIDE );
 361     TRACE( "removed %u now %d icons\n", icon->id, nb_displayed );
 362 }
 363
 364 static void repaint_tray_icon( struct tray_icon *icon )
 365 {
 366     BLENDFUNCTION blend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
 367     int width = GetSystemMetrics( SM_CXSMICON );
 368     int height = GetSystemMetrics( SM_CYSMICON );
 369     BITMAPINFO *info;
 370     HBITMAP dib, mask;
 371     HDC hdc;
 372     RECT rc;
 373     SIZE size;
 374     POINT pos;
 375     int i, x, y;
 376     void *color_bits, *mask_bits;
 377     DWORD *ptr;
 378     BOOL has_alpha = FALSE;
 379
 380     GetWindowRect( icon->window, &rc );
 381     size.cx = rc.right - rc.left;
 382     size.cy = rc.bottom - rc.top;
 383     pos.x = (size.cx - width) / 2;
 384     pos.y = (size.cy - height) / 2;
 385
 386     info = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, FIELD_OFFSET( BITMAPINFO, bmiColors[2] ));
 387     if (!info) return;
 388     info->bmiHeader.biSize = sizeof(info->bmiHeader);
 389     info->bmiHeader.biWidth = size.cx;
 390     info->bmiHeader.biHeight = size.cy;
 391     info->bmiHeader.biBitCount = 32;
 392     info->bmiHeader.biPlanes = 1;
 393     info->bmiHeader.biCompression = BI_RGB;
 394
 395     hdc = CreateCompatibleDC( 0 );
 396     if (!(dib = CreateDIBSection( 0, info, DIB_RGB_COLORS, &color_bits, NULL, 0 ))) goto done;
 397     SelectObject( hdc, dib );
 398     DrawIconEx( hdc, pos.x, pos.y, icon->image, width, height, 0, 0, DI_DEFAULTSIZE | DI_NORMAL );
 399
 400     /* check if the icon was drawn with an alpha channel */
 401     for (i = 0, ptr = color_bits; i < size.cx * size.cy; i++)
 402         if ((has_alpha = (ptr[i] & 0xff000000) != 0)) break;
 403
 404     if (!has_alpha)
 405     {
 406         unsigned int width_bytes = (size.cx + 31) / 32 * 4;
 407
 408         info->bmiHeader.biBitCount = 1;
 409         info->bmiColors[0].rgbRed      = 0;
 410         info->bmiColors[0].rgbGreen    = 0;
 411         info->bmiColors[0].rgbBlue     = 0;
 412         info->bmiColors[0].rgbReserved = 0;
 413         info->bmiColors[1].rgbRed      = 0xff;
 414         info->bmiColors[1].rgbGreen    = 0xff;
 415         info->bmiColors[1].rgbBlue     = 0xff;
 416         info->bmiColors[1].rgbReserved = 0;
 417
 418         if (!(mask = CreateDIBSection( 0, info, DIB_RGB_COLORS, &mask_bits, NULL, 0 ))) goto done;
 419         memset( mask_bits, 0xff, width_bytes * size.cy );
 420         SelectObject( hdc, mask );
 421         DrawIconEx( hdc, pos.x, pos.y, icon->image, width, height, 0, 0, DI_DEFAULTSIZE | DI_MASK );
 422
 423         for (y = 0, ptr = color_bits; y < size.cy; y++)
 424             for (x = 0; x < size.cx; x++, ptr++)
 425                 if (!((((BYTE *)mask_bits)[y * width_bytes + x / 8] << (x % 8)) & 0x80))
 426                     *ptr |= 0xff000000;
 427
 428         SelectObject( hdc, dib );
 429         DeleteObject( mask );
 430     }
 431
 432     UpdateLayeredWindow( icon->window, 0, NULL, NULL, hdc, NULL, 0, &blend, ULW_ALPHA );
 433 done:
 434     HeapFree (GetProcessHeap(), 0, info);
 435     if (hdc) DeleteDC( hdc );
 436     if (dib) DeleteObject( dib );
 437 }
 438
 439 static BOOL notify_owner( struct tray_icon *icon, UINT msg, LPARAM lparam )
 440 {
 441     WPARAM wp = icon->id;
 442     LPARAM lp = msg;
 443
 444     if (icon->version >= NOTIFYICON_VERSION_4)
 445     {
 446         POINT pt = { (short)LOWORD(lparam), (short)HIWORD(lparam) };
 447
 448         ClientToScreen( icon->window, &pt );
 449         wp = MAKEWPARAM( pt.x, pt.y );
 450         lp = MAKELPARAM( msg, icon->id );
 451     }
 452
 453     TRACE( "relaying 0x%x\n", msg );
 454     if (!SendNotifyMessageW( icon->owner, icon->callback_message, wp, lp ) &&
 455         (GetLastError() == ERROR_INVALID_WINDOW_HANDLE))
 456     {
 457         WARN( "application window was destroyed, removing icon %u\n", icon->id );
 458         delete_icon( icon );
 459         return FALSE;
 460     }
 461     return TRUE;
 462 }
 463
 464 /* window procedure for the individual tray icon window */
 465 static LRESULT WINAPI tray_icon_wndproc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 466 {
 467     struct tray_icon *icon = NULL;
 468
 469     TRACE("hwnd=%p, msg=0x%x\n", hwnd, msg);
 470
 471     /* set the icon data for the window from the data passed into CreateWindow */
 472     if (msg == WM_NCCREATE)
 473         SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LPARAM)((const CREATESTRUCTW *)lparam)->lpCreateParams);
 474
 475     icon = (struct tray_icon *) GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 476
 477     switch (msg)
 478     {
 479     case WM_SIZE:
 480         if (icon->window && icon->layered) repaint_tray_icon( icon );
 481         break;
 482
 483     case WM_PAINT:
 484         if (!icon->layered)
 485         {
 486             PAINTSTRUCT ps;
 487             RECT rc;
 488             HDC hdc;
 489             int cx = GetSystemMetrics( SM_CXSMICON );
 490             int cy = GetSystemMetrics( SM_CYSMICON );
 491
 492             hdc = BeginPaint(hwnd, &ps);
 493             GetClientRect(hwnd, &rc);
 494             TRACE("painting rect %s\n", wine_dbgstr_rect(&rc));
 495             DrawIconEx( hdc, (rc.left + rc.right - cx) / 2, (rc.top + rc.bottom - cy) / 2,
 496                         icon->image, cx, cy, 0, 0, DI_DEFAULTSIZE|DI_NORMAL );
 497             EndPaint(hwnd, &ps);
 498             return 0;
 499         }
 500         break;
 501
 502     case WM_MOUSEMOVE:
 503     case WM_LBUTTONDOWN:
 504     case WM_RBUTTONDOWN:
 505     case WM_MBUTTONDOWN:
 506     case WM_MBUTTONUP:
 507     case WM_LBUTTONDBLCLK:
 508     case WM_RBUTTONDBLCLK:
 509     case WM_MBUTTONDBLCLK:
 510         notify_owner( icon, msg, lparam );
 511         break;
 512
 513     case WM_LBUTTONUP:
 514         if (!notify_owner( icon, msg, lparam )) break;
 515         if (icon->version > 0) notify_owner( icon, NIN_SELECT, lparam );
 516         break;
 517
 518     case WM_RBUTTONUP:
 519         if (!notify_owner( icon, msg, lparam )) break;
 520         if (icon->version > 0) notify_owner( icon, WM_CONTEXTMENU, lparam );
 521         break;
 522
 523     case WM_WINDOWPOSCHANGED:
 524         update_systray_balloon_position();
 525         break;
 526
 527     case WM_TIMER:
 528         switch (wparam)
 529         {
 530         case BALLOON_CREATE_TIMER:
 531             balloon_create_timer( icon );
 532             break;
 533         case BALLOON_SHOW_TIMER:
 534             balloon_timer();
 535             break;
 536         }
 537         return 0;
 538
 539     case WM_CLOSE:
 540         if (icon->display == -1)
 541         {
 542             TRACE( "icon %u no longer embedded\n", icon->id );
 543             hide_icon( icon );
 544             add_to_standalone_tray( icon );
 545         }
 546         return 0;
 547     }
 548     return DefWindowProcW( hwnd, msg, wparam, lparam );
 549 }
 550
 551 /* find the X11 window owner the system tray selection */
 552 static Window get_systray_selection_owner( Display *display )
 553 {
 554     return XGetSelectionOwner( display, systray_atom );
 555 }
 556
 557 static void get_systray_visual_info( Display *display, Window systray_window, XVisualInfo *info )
 558 {
 559     XVisualInfo *list, template;
 560     VisualID *visual_id;
 561     Atom type;
 562     int format, num;
 563     unsigned long count, remaining;
 564
 565     *info = default_visual;
 566     if (XGetWindowProperty( display, systray_window, x11drv_atom(_NET_SYSTEM_TRAY_VISUAL), 0,
 567                             65536/sizeof(CARD32), False, XA_VISUALID, &type, &format, &count,
 568                             &remaining, (unsigned char **)&visual_id ))
 569         return;
 570
 571     if (type == XA_VISUALID && format == 32)
 572     {
 573         template.visualid = visual_id[0];
 574         if ((list = XGetVisualInfo( display, VisualIDMask, &template, &num )))
 575         {
 576             *info = list[0];
 577             TRACE( "systray window %lx got visual %lx\n", systray_window, info->visualid );
 578             XFree( list );
 579         }
 580     }
 581     XFree( visual_id );
 582 }
 583
 584 static BOOL init_systray(void)
 585 {
 586     static BOOL init_done;
 587     WNDCLASSEXW class;
 588     Display *display;
 589
 590     if (is_virtual_desktop()) return FALSE;
 591     if (init_done) return TRUE;
 592
 593     icon_cx = GetSystemMetrics( SM_CXSMICON ) + 2 * ICON_BORDER;
 594     icon_cy = GetSystemMetrics( SM_CYSMICON ) + 2 * ICON_BORDER;
 595
 596     memset( &class, 0, sizeof(class) );
 597     class.cbSize        = sizeof(class);
 598     class.lpfnWndProc   = tray_icon_wndproc;
 599     class.hIcon         = LoadIconW(0, (LPCWSTR)IDI_WINLOGO);
 600     class.hCursor       = LoadCursorW( 0, (LPCWSTR)IDC_ARROW );
 601     class.lpszClassName = icon_classname;
 602     class.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 603
 604     if (!RegisterClassExW( &class ) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
 605     {
 606         ERR( "Could not register icon tray window class\n" );
 607         return FALSE;
 608     }
 609
 610     class.lpfnWndProc   = standalone_tray_wndproc;
 611     class.hbrBackground = (HBRUSH)COLOR_WINDOW;
 612     class.lpszClassName = tray_classname;
 613     class.style         = CS_DBLCLKS;
 614
 615     if (!RegisterClassExW( &class ) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
 616     {
 617         ERR( "Could not register standalone tray window class\n" );
 618         return FALSE;
 619     }
 620
 621     display = thread_init_display();
 622     if (DefaultScreen( display ) == 0)
 623         systray_atom = x11drv_atom(_NET_SYSTEM_TRAY_S0);
 624     else
 625     {
 626         char systray_buffer[29]; /* strlen(_NET_SYSTEM_TRAY_S4294967295)+1 */
 627         sprintf( systray_buffer, "_NET_SYSTEM_TRAY_S%u", DefaultScreen( display ) );
 628         systray_atom = XInternAtom( display, systray_buffer, False );
 629     }
 630     XSelectInput( display, root_window, StructureNotifyMask );
 631
 632     init_done = TRUE;
 633     return TRUE;
 634 }
 635
 636 /* dock the given icon with the NETWM system tray */
 637 static void dock_systray_icon( Display *display, struct tray_icon *icon, Window systray_window )
 638 {
 639     Window window;
 640     XEvent ev;
 641     XSetWindowAttributes attr;
 642     XVisualInfo visual;
 643     struct x11drv_win_data *data;
 644
 645     get_systray_visual_info( display, systray_window, &visual );
 646
 647     icon->layered = (visual.depth == 32);
 648     icon->window = CreateWindowExW( icon->layered ? WS_EX_LAYERED : 0,
 649                                     icon_classname, NULL, WS_CLIPSIBLINGS | WS_POPUP,
 650                                     CW_USEDEFAULT, CW_USEDEFAULT, icon_cx, icon_cy,
 651                                     NULL, NULL, NULL, icon );
 652
 653     if (!(data = get_win_data( icon->window ))) return;
 654     if (icon->layered) set_window_visual( data, &visual, TRUE );
 655     make_window_embedded( data );
 656     window = data->whole_window;
 657     release_win_data( data );
 658
 659     create_tooltip( icon );
 660     ShowWindow( icon->window, SW_SHOWNA );
 661
 662     TRACE( "icon window %p/%lx\n", icon->window, window );
 663
 664     /* send the docking request message */
 665     ev.xclient.type = ClientMessage;
 666     ev.xclient.window = systray_window;
 667     ev.xclient.message_type = x11drv_atom( _NET_SYSTEM_TRAY_OPCODE );
 668     ev.xclient.format = 32;
 669     ev.xclient.data.l[0] = CurrentTime;
 670     ev.xclient.data.l[1] = SYSTEM_TRAY_REQUEST_DOCK;
 671     ev.xclient.data.l[2] = window;
 672     ev.xclient.data.l[3] = 0;
 673     ev.xclient.data.l[4] = 0;
 674     XSendEvent( display, systray_window, False, NoEventMask, &ev );
 675
 676     if (!icon->layered)
 677     {
 678         attr.background_pixmap = ParentRelative;
 679         attr.bit_gravity = ForgetGravity;
 680         XChangeWindowAttributes( display, window, CWBackPixmap | CWBitGravity, &attr );
 681     }
 682     else repaint_tray_icon( icon );
 683 }
 684
 685 /* dock systray windows again with the new owner */
 686 void change_systray_owner( Display *display, Window systray_window )
 687 {
 688     struct tray_icon *icon;
 689
 690     TRACE( "new owner %lx\n", systray_window );
 691     LIST_FOR_EACH_ENTRY( icon, &icon_list, struct tray_icon, entry )
 692     {
 693         if (icon->display == -1) continue;
 694         hide_icon( icon );
 695         dock_systray_icon( display, icon, systray_window );
 696     }
 697 }
 698
 699 /* hide a tray icon */
 700 static BOOL hide_icon( struct tray_icon *icon )
 701 {
 702     struct x11drv_win_data *data;
 703
 704     TRACE( "id=0x%x, hwnd=%p\n", icon->id, icon->owner );
 705
 706     if (!icon->window) return TRUE;  /* already hidden */
 707
 708     /* make sure we don't try to unmap it, it confuses some systray docks */
 709     if ((data = get_win_data( icon->window )))
 710     {
 711         if (data->embedded) data->mapped = FALSE;
 712         release_win_data( data );
 713     }
 714     DestroyWindow(icon->window);
 715     DestroyWindow(icon->tooltip);
 716     icon->window = 0;
 717     icon->layered = FALSE;
 718     icon->tooltip = 0;
 719     remove_from_standalone_tray( icon );
 720     update_balloon( icon );
 721     return TRUE;
 722 }
 723
 724 /* make the icon visible */
 725 static BOOL show_icon( struct tray_icon *icon )
 726 {
 727     Window systray_window;
 728     Display *display = thread_init_display();
 729
 730     TRACE( "id=0x%x, hwnd=%p\n", icon->id, icon->owner );
 731
 732     if (icon->window) return TRUE;  /* already shown */
 733
 734     if ((systray_window = get_systray_selection_owner( display )))
 735         dock_systray_icon( display, icon, systray_window );
 736     else
 737         add_to_standalone_tray( icon );
 738
 739     update_balloon( icon );
 740     return TRUE;
 741 }
 742
 743 /* Modifies an existing icon record */
 744 static BOOL modify_icon( struct tray_icon *icon, NOTIFYICONDATAW *nid )
 745 {
 746     TRACE( "id=0x%x hwnd=%p flags=%x\n", nid->uID, nid->hWnd, nid->uFlags );
 747
 748     if (nid->uFlags & NIF_STATE)
 749     {
 750         icon->state = (icon->state & ~nid->dwStateMask) | (nid->dwState & nid->dwStateMask);
 751     }
 752
 753     if (nid->uFlags & NIF_ICON)
 754     {
 755         if (icon->image) DestroyIcon(icon->image);
 756         icon->image = CopyIcon(nid->hIcon);
 757         if (icon->window)
 758         {
 759             if (icon->display != -1) InvalidateRect( icon->window, NULL, TRUE );
 760             else if (icon->layered) repaint_tray_icon( icon );
 761             else
 762             {
 763                 Window win = X11DRV_get_whole_window( icon->window );
 764                 if (win) XClearArea( gdi_display, win, 0, 0, 0, 0, True );
 765             }
 766         }
 767     }
 768
 769     if (nid->uFlags & NIF_MESSAGE)
 770     {
 771         icon->callback_message = nid->uCallbackMessage;
 772     }
 773     if (nid->uFlags & NIF_TIP)
 774     {
 775         lstrcpynW(icon->tiptext, nid->szTip, ARRAY_SIZE( icon->tiptext ));
 776         if (icon->tooltip) update_tooltip_text(icon);
 777     }
 778     if (nid->uFlags & NIF_INFO && nid->cbSize >= NOTIFYICONDATAA_V2_SIZE)
 779     {
 780         lstrcpynW( icon->info_text, nid->szInfo, ARRAY_SIZE( icon->info_text ));
 781         lstrcpynW( icon->info_title, nid->szInfoTitle, ARRAY_SIZE( icon->info_title ));
 782         icon->info_flags = nid->dwInfoFlags;
 783         icon->info_timeout = max(min(nid->u.uTimeout, BALLOON_SHOW_MAX_TIMEOUT), BALLOON_SHOW_MIN_TIMEOUT);
 784         icon->info_icon = nid->hBalloonIcon;
 785         update_balloon( icon );
 786     }
 787     if (icon->state & NIS_HIDDEN) hide_icon( icon );
 788     else show_icon( icon );
 789     return TRUE;
 790 }
 791
 792 /* Adds a new icon record to the list */
 793 static BOOL add_icon(NOTIFYICONDATAW *nid)
 794 {
 795     struct tray_icon  *icon;
 796
 797     TRACE("id=0x%x, hwnd=%p\n", nid->uID, nid->hWnd);
 798
 799     if ((icon = get_icon(nid->hWnd, nid->uID)))
 800     {
 801         WARN("duplicate tray icon add, buggy app?\n");
 802         return FALSE;
 803     }
 804
 805     if (!(icon = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*icon))))
 806     {
 807         ERR("out of memory\n");
 808         return FALSE;
 809     }
 810
 811     ZeroMemory(icon, sizeof(struct tray_icon));
 812     icon->id     = nid->uID;
 813     icon->owner  = nid->hWnd;
 814     icon->display = -1;
 815
 816     list_add_tail(&icon_list, &icon->entry);
 817
 818     return modify_icon( icon, nid );
 819 }
 820
 821 /* delete tray icon window and icon structure */
 822 static BOOL delete_icon( struct tray_icon *icon )
 823 {
 824     hide_icon( icon );
 825     list_remove( &icon->entry );
 826     DestroyIcon( icon->image );
 827     HeapFree( GetProcessHeap(), 0, icon );
 828     return TRUE;
 829 }
 830
 831 /* cleanup all icons for a given window */
 832 static void cleanup_icons( HWND owner )
 833 {
 834     struct tray_icon *this, *next;
 835
 836     LIST_FOR_EACH_ENTRY_SAFE( this, next, &icon_list, struct tray_icon, entry )
 837         if (this->owner == owner) delete_icon( this );
 838 }
 839
 840
 841 /***********************************************************************
 842  *              wine_notify_icon   (X11DRV.@)
 843  *
 844  * Driver-side implementation of Shell_NotifyIcon.
 845  */
 846 int CDECL wine_notify_icon( DWORD msg, NOTIFYICONDATAW *data )
 847 {
 848     BOOL ret = FALSE;
 849     struct tray_icon *icon;
 850
 851     switch (msg)
 852     {
 853     case NIM_ADD:
 854         if (!init_systray()) return -1;  /* fall back to default handling */
 855         ret = add_icon( data );
 856         break;
 857     case NIM_DELETE:
 858         if ((icon = get_icon( data->hWnd, data->uID ))) ret = delete_icon( icon );
 859         break;
 860     case NIM_MODIFY:
 861         if ((icon = get_icon( data->hWnd, data->uID ))) ret = modify_icon( icon, data );
 862         break;
 863     case NIM_SETVERSION:
 864         if ((icon = get_icon( data->hWnd, data->uID )))
 865         {
 866             icon->version = data->u.uVersion;
 867             ret = TRUE;
 868         }
 869         break;
 870     case 0xdead:  /* Wine extension: owner window has died */
 871         cleanup_icons( data->hWnd );
 872         break;
 873     default:
 874         FIXME( "unhandled tray message: %u\n", msg );
 875         break;
 876     }
 877     return ret;
 878 }