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     HWND           tooltip;  /* Icon tooltip */
  57     UINT           state;    /* state flags */
  58     UINT           id;       /* the unique id given by the app */
  59     UINT           callback_message;
  60     int            display;  /* display index, or -1 if hidden */
  61     WCHAR          tiptext[128];    /* tooltip text */
  62     WCHAR          info_text[256];  /* info balloon text */
  63     WCHAR          info_title[64];  /* info balloon title */
  64     UINT           info_flags;      /* flags for info balloon */
  65     UINT           info_timeout;    /* timeout for info balloon */
  66     HICON          info_icon;       /* info balloon icon */
  67 };
  68
  69 static struct list icon_list = LIST_INIT( icon_list );
  70
  71 static const WCHAR icon_classname[] = {'_','_','w','i','n','e','x','1','1','_','t','r','a','y','_','i','c','o','n',0};
  72 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};
  73
  74 static BOOL show_icon( struct tray_icon *icon );
  75 static BOOL hide_icon( struct tray_icon *icon );
  76 static BOOL delete_icon( struct tray_icon *icon );
  77
  78 #define SYSTEM_TRAY_REQUEST_DOCK  0
  79 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
  80 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
  81
  82 Atom systray_atom = 0;
  83
  84 #define MIN_DISPLAYED 8
  85 #define ICON_BORDER 2
  86
  87 #define VALID_WIN_TIMER      1
  88 #define BALLOON_CREATE_TIMER 2
  89 #define BALLOON_SHOW_TIMER   3
  90
  91 #define VALID_WIN_TIMEOUT        2000
  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 /* window procedure for the individual tray icon window */
 365 static LRESULT WINAPI tray_icon_wndproc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 366 {
 367     struct tray_icon *icon = NULL;
 368     BOOL ret;
 369
 370     TRACE("hwnd=%p, msg=0x%x\n", hwnd, msg);
 371
 372     /* set the icon data for the window from the data passed into CreateWindow */
 373     if (msg == WM_NCCREATE)
 374         SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LPARAM)((const CREATESTRUCTW *)lparam)->lpCreateParams);
 375
 376     icon = (struct tray_icon *) GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 377
 378     switch (msg)
 379     {
 380     case WM_CREATE:
 381         SetTimer( hwnd, VALID_WIN_TIMER, VALID_WIN_TIMEOUT, NULL );
 382         break;
 383
 384     case WM_PAINT:
 385         {
 386             PAINTSTRUCT ps;
 387             RECT rc;
 388             HDC hdc;
 389             int cx = GetSystemMetrics( SM_CXSMICON );
 390             int cy = GetSystemMetrics( SM_CYSMICON );
 391
 392             hdc = BeginPaint(hwnd, &ps);
 393             GetClientRect(hwnd, &rc);
 394             TRACE("painting rect %s\n", wine_dbgstr_rect(&rc));
 395             DrawIconEx( hdc, (rc.left + rc.right - cx) / 2, (rc.top + rc.bottom - cy) / 2,
 396                         icon->image, cx, cy, 0, 0, DI_DEFAULTSIZE|DI_NORMAL );
 397             EndPaint(hwnd, &ps);
 398             return 0;
 399         }
 400
 401     case WM_MOUSEMOVE:
 402     case WM_LBUTTONDOWN:
 403     case WM_LBUTTONUP:
 404     case WM_RBUTTONDOWN:
 405     case WM_RBUTTONUP:
 406     case WM_MBUTTONDOWN:
 407     case WM_MBUTTONUP:
 408     case WM_LBUTTONDBLCLK:
 409     case WM_RBUTTONDBLCLK:
 410     case WM_MBUTTONDBLCLK:
 411         /* notify the owner hwnd of the message */
 412         TRACE("relaying 0x%x\n", msg);
 413         ret = PostMessageW(icon->owner, icon->callback_message, icon->id, msg);
 414         if (!ret && (GetLastError() == ERROR_INVALID_WINDOW_HANDLE))
 415         {
 416             WARN( "application window was destroyed, removing icon %u\n", icon->id );
 417             delete_icon( icon );
 418         }
 419         return 0;
 420
 421     case WM_WINDOWPOSCHANGED:
 422         update_systray_balloon_position();
 423         break;
 424
 425     case WM_TIMER:
 426         switch (wparam)
 427         {
 428         case VALID_WIN_TIMER:
 429             if (!IsWindow( icon->owner )) delete_icon( icon );
 430             break;
 431         case BALLOON_CREATE_TIMER:
 432             balloon_create_timer( icon );
 433             break;
 434         case BALLOON_SHOW_TIMER:
 435             balloon_timer();
 436             break;
 437         }
 438         return 0;
 439
 440     case WM_CLOSE:
 441         if (icon->display == -1)
 442         {
 443             TRACE( "icon %u no longer embedded\n", icon->id );
 444             hide_icon( icon );
 445             add_to_standalone_tray( icon );
 446         }
 447         return 0;
 448     }
 449     return DefWindowProcW( hwnd, msg, wparam, lparam );
 450 }
 451
 452 /* find the X11 window owner the system tray selection */
 453 static Window get_systray_selection_owner( Display *display )
 454 {
 455     return XGetSelectionOwner( display, systray_atom );
 456 }
 457
 458 static BOOL init_systray(void)
 459 {
 460     static BOOL init_done;
 461     WNDCLASSEXW class;
 462     Display *display;
 463
 464     if (root_window != DefaultRootWindow( gdi_display )) return FALSE;
 465     if (init_done) return TRUE;
 466
 467     icon_cx = GetSystemMetrics( SM_CXSMICON ) + 2 * ICON_BORDER;
 468     icon_cy = GetSystemMetrics( SM_CYSMICON ) + 2 * ICON_BORDER;
 469
 470     memset( &class, 0, sizeof(class) );
 471     class.cbSize        = sizeof(class);
 472     class.lpfnWndProc   = tray_icon_wndproc;
 473     class.hIcon         = LoadIconW(0, (LPCWSTR)IDI_WINLOGO);
 474     class.hCursor       = LoadCursorW( 0, (LPCWSTR)IDC_ARROW );
 475     class.lpszClassName = icon_classname;
 476     class.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 477
 478     if (!RegisterClassExW( &class ) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
 479     {
 480         ERR( "Could not register icon tray window class\n" );
 481         return FALSE;
 482     }
 483
 484     class.lpfnWndProc   = standalone_tray_wndproc;
 485     class.hbrBackground = (HBRUSH)COLOR_WINDOW;
 486     class.lpszClassName = tray_classname;
 487     class.style         = CS_DBLCLKS;
 488
 489     if (!RegisterClassExW( &class ) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
 490     {
 491         ERR( "Could not register standalone tray window class\n" );
 492         return FALSE;
 493     }
 494
 495     display = thread_init_display();
 496     wine_tsx11_lock();
 497     if (DefaultScreen( display ) == 0)
 498         systray_atom = x11drv_atom(_NET_SYSTEM_TRAY_S0);
 499     else
 500     {
 501         char systray_buffer[29]; /* strlen(_NET_SYSTEM_TRAY_S4294967295)+1 */
 502         sprintf( systray_buffer, "_NET_SYSTEM_TRAY_S%u", DefaultScreen( display ) );
 503         systray_atom = XInternAtom( display, systray_buffer, False );
 504     }
 505     XSelectInput( display, root_window, StructureNotifyMask );
 506     wine_tsx11_unlock();
 507
 508     init_done = TRUE;
 509     return TRUE;
 510 }
 511
 512 /* dock the given icon with the NETWM system tray */
 513 static void dock_systray_icon( Display *display, struct tray_icon *icon, Window systray_window )
 514 {
 515     struct x11drv_win_data *data;
 516     XEvent ev;
 517     XSetWindowAttributes attr;
 518
 519     icon->window = CreateWindowW( icon_classname, NULL, WS_CLIPSIBLINGS | WS_POPUP,
 520                                   CW_USEDEFAULT, CW_USEDEFAULT, icon_cx, icon_cy,
 521                                   NULL, NULL, NULL, icon );
 522     if (!icon->window) return;
 523
 524     if (!(data = X11DRV_get_win_data( icon->window )) &&
 525         !(data = X11DRV_create_win_data( icon->window ))) return;
 526
 527     TRACE( "icon window %p/%lx managed %u\n", data->hwnd, data->whole_window, data->managed );
 528
 529     make_window_embedded( display, data );
 530     create_tooltip( icon );
 531     ShowWindow( icon->window, SW_SHOWNA );
 532
 533     /* send the docking request message */
 534     ev.xclient.type = ClientMessage;
 535     ev.xclient.window = systray_window;
 536     ev.xclient.message_type = x11drv_atom( _NET_SYSTEM_TRAY_OPCODE );
 537     ev.xclient.format = 32;
 538     ev.xclient.data.l[0] = CurrentTime;
 539     ev.xclient.data.l[1] = SYSTEM_TRAY_REQUEST_DOCK;
 540     ev.xclient.data.l[2] = data->whole_window;
 541     ev.xclient.data.l[3] = 0;
 542     ev.xclient.data.l[4] = 0;
 543     XSendEvent( display, systray_window, False, NoEventMask, &ev );
 544     attr.background_pixmap = ParentRelative;
 545     attr.bit_gravity = ForgetGravity;
 546     XChangeWindowAttributes( display, data->whole_window, CWBackPixmap | CWBitGravity, &attr );
 547     XChangeWindowAttributes( display, data->client_window, CWBackPixmap | CWBitGravity, &attr );
 548 }
 549
 550 /* dock systray windows again with the new owner */
 551 void change_systray_owner( Display *display, Window systray_window )
 552 {
 553     struct tray_icon *icon;
 554
 555     TRACE( "new owner %lx\n", systray_window );
 556     LIST_FOR_EACH_ENTRY( icon, &icon_list, struct tray_icon, entry )
 557     {
 558         if (icon->display == -1) continue;
 559         hide_icon( icon );
 560         dock_systray_icon( display, icon, systray_window );
 561     }
 562 }
 563
 564 /* hide a tray icon */
 565 static BOOL hide_icon( struct tray_icon *icon )
 566 {
 567     struct x11drv_win_data *data;
 568
 569     TRACE( "id=0x%x, hwnd=%p\n", icon->id, icon->owner );
 570
 571     if (!icon->window) return TRUE;  /* already hidden */
 572
 573     /* make sure we don't try to unmap it, it confuses some systray docks */
 574     if ((data = X11DRV_get_win_data( icon->window )) && data->embedded) data->mapped = FALSE;
 575
 576     DestroyWindow(icon->window);
 577     DestroyWindow(icon->tooltip);
 578     icon->window = 0;
 579     icon->tooltip = 0;
 580     remove_from_standalone_tray( icon );
 581     update_balloon( icon );
 582     return TRUE;
 583 }
 584
 585 /* make the icon visible */
 586 static BOOL show_icon( struct tray_icon *icon )
 587 {
 588     Window systray_window;
 589     Display *display = thread_init_display();
 590
 591     TRACE( "id=0x%x, hwnd=%p\n", icon->id, icon->owner );
 592
 593     if (icon->window) return TRUE;  /* already shown */
 594
 595     if ((systray_window = get_systray_selection_owner( display )))
 596         dock_systray_icon( display, icon, systray_window );
 597     else
 598         add_to_standalone_tray( icon );
 599
 600     update_balloon( icon );
 601     return TRUE;
 602 }
 603
 604 /* Modifies an existing icon record */
 605 static BOOL modify_icon( struct tray_icon *icon, NOTIFYICONDATAW *nid )
 606 {
 607     TRACE( "id=0x%x hwnd=%p flags=%x\n", nid->uID, nid->hWnd, nid->uFlags );
 608
 609     if (nid->uFlags & NIF_STATE)
 610     {
 611         icon->state = (icon->state & ~nid->dwStateMask) | (nid->dwState & nid->dwStateMask);
 612     }
 613
 614     if (nid->uFlags & NIF_ICON)
 615     {
 616         if (icon->image) DestroyIcon(icon->image);
 617         icon->image = CopyIcon(nid->hIcon);
 618         if (icon->window)
 619         {
 620             if (icon->display != -1) InvalidateRect( icon->window, NULL, TRUE );
 621             else
 622             {
 623                 struct x11drv_win_data *data = X11DRV_get_win_data( icon->window );
 624                 if (data) XClearArea( gdi_display, data->client_window, 0, 0, 0, 0, True );
 625             }
 626         }
 627     }
 628
 629     if (nid->uFlags & NIF_MESSAGE)
 630     {
 631         icon->callback_message = nid->uCallbackMessage;
 632     }
 633     if (nid->uFlags & NIF_TIP)
 634     {
 635         lstrcpynW(icon->tiptext, nid->szTip, sizeof(icon->tiptext)/sizeof(WCHAR));
 636         if (icon->tooltip) update_tooltip_text(icon);
 637     }
 638     if (nid->uFlags & NIF_INFO && nid->cbSize >= NOTIFYICONDATAA_V2_SIZE)
 639     {
 640         lstrcpynW( icon->info_text, nid->szInfo, sizeof(icon->info_text)/sizeof(WCHAR) );
 641         lstrcpynW( icon->info_title, nid->szInfoTitle, sizeof(icon->info_title)/sizeof(WCHAR) );
 642         icon->info_flags = nid->dwInfoFlags;
 643         icon->info_timeout = max(min(nid->u.uTimeout, BALLOON_SHOW_MAX_TIMEOUT), BALLOON_SHOW_MIN_TIMEOUT);
 644         icon->info_icon = nid->hBalloonIcon;
 645         update_balloon( icon );
 646     }
 647     if (icon->state & NIS_HIDDEN) hide_icon( icon );
 648     else show_icon( icon );
 649     return TRUE;
 650 }
 651
 652 /* Adds a new icon record to the list */
 653 static BOOL add_icon(NOTIFYICONDATAW *nid)
 654 {
 655     struct tray_icon  *icon;
 656
 657     TRACE("id=0x%x, hwnd=%p\n", nid->uID, nid->hWnd);
 658
 659     if ((icon = get_icon(nid->hWnd, nid->uID)))
 660     {
 661         WARN("duplicate tray icon add, buggy app?\n");
 662         return FALSE;
 663     }
 664
 665     if (!(icon = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*icon))))
 666     {
 667         ERR("out of memory\n");
 668         return FALSE;
 669     }
 670
 671     ZeroMemory(icon, sizeof(struct tray_icon));
 672     icon->id     = nid->uID;
 673     icon->owner  = nid->hWnd;
 674     icon->display = -1;
 675
 676     list_add_tail(&icon_list, &icon->entry);
 677
 678     return modify_icon( icon, nid );
 679 }
 680
 681 /* delete tray icon window and icon structure */
 682 static BOOL delete_icon( struct tray_icon *icon )
 683 {
 684     hide_icon( icon );
 685     list_remove( &icon->entry );
 686     DestroyIcon( icon->image );
 687     HeapFree( GetProcessHeap(), 0, icon );
 688     return TRUE;
 689 }
 690
 691
 692 /***********************************************************************
 693  *              wine_notify_icon   (X11DRV.@)
 694  *
 695  * Driver-side implementation of Shell_NotifyIcon.
 696  */
 697 int CDECL wine_notify_icon( DWORD msg, NOTIFYICONDATAW *data )
 698 {
 699     BOOL ret = FALSE;
 700     struct tray_icon *icon;
 701
 702     switch (msg)
 703     {
 704     case NIM_ADD:
 705         if (!init_systray()) return -1;  /* fall back to default handling */
 706         ret = add_icon( data );
 707         break;
 708     case NIM_DELETE:
 709         if ((icon = get_icon( data->hWnd, data->uID ))) ret = delete_icon( icon );
 710         break;
 711     case NIM_MODIFY:
 712         if ((icon = get_icon( data->hWnd, data->uID ))) ret = modify_icon( icon, data );
 713         break;
 714     default:
 715         FIXME( "unhandled tray message: %u\n", msg );
 716         break;
 717     }
 718     return ret;
 719 }