reactos/base/shell/explorer/trayntfy.cpp

   1 /*
   2  * ReactOS Explorer
   3  *
   4  * Copyright 2006 - 2007 Thomas Weidenmueller <w3seek@reactos.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include "precomp.h"
  22
  23 #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
  24 #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
  25
  26 /*
  27  * SysPagerWnd
  28  */
  29 static const WCHAR szSysPagerWndClass [] = L"SysPager";
  30
  31 // Data comes from shell32/systray.cpp -> TrayNotifyCDS_Dummy
  32 typedef struct _SYS_PAGER_COPY_DATA
  33 {
  34     DWORD           cookie;
  35     DWORD           notify_code;
  36     NOTIFYICONDATA  nicon_data;
  37 } SYS_PAGER_COPY_DATA, *PSYS_PAGER_COPY_DATA;
  38
  39 class CNotifyToolbar :
  40     public CWindowImplBaseT< CToolbar<NOTIFYICONDATA>, CControlWinTraits >
  41 {
  42     static const int ICON_SIZE = 16;
  43
  44     HIMAGELIST m_ImageList;
  45     int m_VisibleButtonCount;
  46
  47 public:
  48     CNotifyToolbar() :
  49         m_ImageList(NULL),
  50         m_VisibleButtonCount(0)
  51     {
  52     }
  53
  54     ~CNotifyToolbar()
  55     {
  56     }
  57
  58     int GetVisibleButtonCount()
  59     {
  60         return m_VisibleButtonCount;
  61     }
  62
  63     int FindItemByIconData(IN CONST NOTIFYICONDATA *iconData, NOTIFYICONDATA ** pdata)
  64     {
  65         int count = GetButtonCount();
  66
  67         for (int i = 0; i < count; i++)
  68         {
  69             NOTIFYICONDATA * data;
  70
  71             data = GetItemData(i);
  72
  73             if (data->hWnd == iconData->hWnd &&
  74                 data->uID == iconData->uID)
  75             {
  76                 if (pdata)
  77                     *pdata = data;
  78                 return i;
  79             }
  80         }
  81
  82         return -1;
  83     }
  84
  85     BOOL AddButton(IN CONST NOTIFYICONDATA *iconData)
  86     {
  87         TBBUTTON tbBtn;
  88         NOTIFYICONDATA * notifyItem;
  89         WCHAR text[] = L"";
  90
  91         int index = FindItemByIconData(iconData, &notifyItem);
  92         if (index >= 0)
  93         {
  94             return UpdateButton(iconData);
  95         }
  96
  97         notifyItem = new NOTIFYICONDATA();
  98         ZeroMemory(notifyItem, sizeof(*notifyItem));
  99
 100         notifyItem->hWnd = iconData->hWnd;
 101         notifyItem->uID = iconData->uID;
 102
 103         tbBtn.fsState = TBSTATE_ENABLED;
 104         tbBtn.fsStyle = BTNS_NOPREFIX;
 105         tbBtn.dwData = (DWORD_PTR)notifyItem;
 106         tbBtn.iString = (INT_PTR) text;
 107         tbBtn.idCommand = GetButtonCount();
 108
 109         if (iconData->uFlags & NIF_MESSAGE)
 110         {
 111             notifyItem->uCallbackMessage = iconData->uCallbackMessage;
 112         }
 113
 114         if (iconData->uFlags & NIF_ICON)
 115         {
 116             tbBtn.iBitmap = ImageList_AddIcon(m_ImageList, iconData->hIcon);
 117         }
 118
 119         if (iconData->uFlags & NIF_TIP)
 120         {
 121             StringCchCopy(notifyItem->szTip, _countof(notifyItem->szTip), iconData->szTip);
 122         }
 123
 124         m_VisibleButtonCount++;
 125         if (iconData->uFlags & NIF_STATE)
 126         {
 127             notifyItem->dwState &= ~iconData->dwStateMask;
 128             notifyItem->dwState |= (iconData->dwState & iconData->dwStateMask);
 129             if (notifyItem->dwState & NIS_HIDDEN)
 130             {
 131                 tbBtn.fsState |= TBSTATE_HIDDEN;
 132                 m_VisibleButtonCount--;
 133             }
 134         }
 135
 136         /* TODO: support NIF_INFO, NIF_GUID, NIF_REALTIME, NIF_SHOWTIP */
 137
 138         CToolbar::AddButton(&tbBtn);
 139         SetButtonSize(ICON_SIZE, ICON_SIZE);
 140
 141         return TRUE;
 142     }
 143
 144     BOOL UpdateButton(IN CONST NOTIFYICONDATA *iconData)
 145     {
 146         NOTIFYICONDATA * notifyItem;
 147         TBBUTTONINFO tbbi = { 0 };
 148
 149         int index = FindItemByIconData(iconData, &notifyItem);
 150         if (index < 0)
 151         {
 152             return AddButton(iconData);
 153         }
 154
 155         tbbi.cbSize = sizeof(tbbi);
 156         tbbi.dwMask = TBIF_BYINDEX | TBIF_COMMAND;
 157         tbbi.idCommand = index;
 158
 159         if (iconData->uFlags & NIF_MESSAGE)
 160         {
 161             notifyItem->uCallbackMessage = iconData->uCallbackMessage;
 162         }
 163
 164         if (iconData->uFlags & NIF_ICON)
 165         {
 166             tbbi.dwMask |= TBIF_IMAGE;
 167             tbbi.iImage = ImageList_ReplaceIcon(m_ImageList, index, iconData->hIcon);
 168         }
 169
 170         if (iconData->uFlags & NIF_TIP)
 171         {
 172             StringCchCopy(notifyItem->szTip, _countof(notifyItem->szTip), iconData->szTip);
 173         }
 174
 175         if (iconData->uFlags & NIF_STATE)
 176         {
 177             if (iconData->dwStateMask & NIS_HIDDEN &&
 178                 (notifyItem->dwState & NIS_HIDDEN) != (iconData->dwState & NIS_HIDDEN))
 179             {
 180                 tbbi.dwMask |= TBIF_STATE;
 181                 if (iconData->dwState & NIS_HIDDEN)
 182                 {
 183                     tbbi.fsState |= TBSTATE_HIDDEN;
 184                     m_VisibleButtonCount--;
 185                 }
 186                 else
 187                 {
 188                     tbbi.fsState &= ~TBSTATE_HIDDEN;
 189                     m_VisibleButtonCount++;
 190                 }
 191             }
 192
 193             notifyItem->dwState &= ~iconData->dwStateMask;
 194             notifyItem->dwState |= (iconData->dwState & iconData->dwStateMask);
 195         }
 196
 197         /* TODO: support NIF_INFO, NIF_GUID, NIF_REALTIME, NIF_SHOWTIP */
 198
 199         SetButtonInfo(index, &tbbi);
 200
 201         return TRUE;
 202     }
 203
 204     BOOL RemoveButton(IN CONST NOTIFYICONDATA *iconData)
 205     {
 206         NOTIFYICONDATA * notifyItem;
 207
 208         int index = FindItemByIconData(iconData, &notifyItem);
 209         if (index < 0)
 210             return FALSE;
 211
 212         if (!(notifyItem->dwState & NIS_HIDDEN))
 213         {
 214             m_VisibleButtonCount--;
 215         }
 216
 217         delete notifyItem;
 218
 219         ImageList_Remove(m_ImageList, index);
 220
 221         int count = GetButtonCount();
 222
 223         /* shift all buttons one index to the left -- starting one index right
 224            from item to delete -- to preserve their correct icon and tip */
 225         for (int i = index; i < count - 1; i++)
 226         {
 227             notifyItem = GetItemData(i + 1);
 228             SetItemData(i, notifyItem);
 229             UpdateButton(notifyItem);
 230         }
 231
 232         /* Delete the right-most, now obsolete button */
 233         DeleteButton(count - 1);
 234
 235         return TRUE;
 236     }
 237
 238     VOID GetTooltipText(int index, LPTSTR szTip, DWORD cchTip)
 239     {
 240         NOTIFYICONDATA * notifyItem;
 241         notifyItem = GetItemData(index);
 242
 243         if (notifyItem)
 244         {
 245             StringCchCopy(szTip, cchTip, notifyItem->szTip);
 246         }
 247     }
 248
 249 private:
 250
 251     VOID SendMouseEvent(IN WORD wIndex, IN UINT uMsg, IN WPARAM wParam)
 252     {
 253         static LPCWSTR eventNames [] = {
 254             L"WM_MOUSEMOVE",
 255             L"WM_LBUTTONDOWN",
 256             L"WM_LBUTTONUP",
 257             L"WM_LBUTTONDBLCLK",
 258             L"WM_RBUTTONDOWN",
 259             L"WM_RBUTTONUP",
 260             L"WM_RBUTTONDBLCLK",
 261             L"WM_MBUTTONDOWN",
 262             L"WM_MBUTTONUP",
 263             L"WM_MBUTTONDBLCLK",
 264             L"WM_MOUSEWHEEL",
 265             L"WM_XBUTTONDOWN",
 266             L"WM_XBUTTONUP",
 267             L"WM_XBUTTONDBLCLK"
 268         };
 269
 270         NOTIFYICONDATA * notifyItem = GetItemData(wIndex);
 271
 272         if (!::IsWindow(notifyItem->hWnd))
 273         {
 274             // We detect and destroy icons with invalid handles only on mouse move over systray, same as MS does.
 275             // Alternatively we could search for them periodically (would waste more resources).
 276             TRACE("destroying icon with invalid handle\n");
 277
 278             HWND parentHWND = GetParent();
 279             parentHWND = ::GetParent(parentHWND);
 280
 281             RECT windowRect;
 282             ::GetClientRect(parentHWND, &windowRect);
 283
 284             RemoveButton(notifyItem);
 285
 286             SendMessage(parentHWND,
 287                 WM_SIZE,
 288                 0,
 289                 MAKELONG(windowRect.right - windowRect.left,
 290                          windowRect.bottom - windowRect.top));
 291
 292             return;
 293         }
 294
 295         if (uMsg >= WM_MOUSEFIRST && uMsg <= WM_MOUSELAST)
 296         {
 297             TRACE("Sending message %S from button %d to %p (msg=%x, w=%x, l=%x)...\n",
 298                      eventNames[uMsg - WM_MOUSEFIRST], wIndex,
 299                      notifyItem->hWnd, notifyItem->uCallbackMessage, notifyItem->uID, uMsg);
 300         }
 301
 302         DWORD pid;
 303         GetWindowThreadProcessId(notifyItem->hWnd, &pid);
 304
 305         if (pid == GetCurrentProcessId() ||
 306             (uMsg >= WM_MOUSEFIRST && uMsg <= WM_MOUSELAST))
 307         {
 308             ::PostMessage(notifyItem->hWnd,
 309                           notifyItem->uCallbackMessage,
 310                           notifyItem->uID,
 311                           uMsg);
 312         }
 313         else
 314         {
 315             SendMessage(notifyItem->hWnd,
 316                         notifyItem->uCallbackMessage,
 317                         notifyItem->uID,
 318                         uMsg);
 319         }
 320     }
 321
 322     LRESULT OnMouseEvent(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 323     {
 324         POINT pt = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
 325
 326         INT iBtn = HitTest(&pt);
 327
 328         if (iBtn >= 0)
 329         {
 330             SendMouseEvent(iBtn, uMsg, wParam);
 331         }
 332
 333         bHandled = FALSE;
 334         return FALSE;
 335     }
 336
 337     LRESULT OnTooltipShow(INT uCode, LPNMHDR hdr, BOOL& bHandled)
 338     {
 339         RECT rcTip, rcItem;
 340         ::GetWindowRect(hdr->hwndFrom, &rcTip);
 341
 342         SIZE szTip = { rcTip.right - rcTip.left, rcTip.bottom - rcTip.top };
 343
 344         INT iBtn = GetHotItem();
 345
 346         if (iBtn >= 0)
 347         {
 348             MONITORINFO monInfo = { 0 };
 349             HMONITOR hMon = MonitorFromWindow(m_hWnd, MONITOR_DEFAULTTONEAREST);
 350
 351             monInfo.cbSize = sizeof(monInfo);
 352
 353             if (hMon)
 354                 GetMonitorInfo(hMon, &monInfo);
 355             else
 356                 ::GetWindowRect(GetDesktopWindow(), &monInfo.rcMonitor);
 357
 358             GetItemRect(iBtn, &rcItem);
 359
 360             POINT ptItem = { rcItem.left, rcItem.top };
 361             SIZE szItem = { rcItem.right - rcItem.left, rcItem.bottom - rcItem.top };
 362             ClientToScreen(&ptItem);
 363
 364             ptItem.x += szItem.cx / 2;
 365             ptItem.y -= szTip.cy;
 366
 367             if (ptItem.x + szTip.cx > monInfo.rcMonitor.right)
 368                 ptItem.x = monInfo.rcMonitor.right - szTip.cx;
 369
 370             if (ptItem.y + szTip.cy > monInfo.rcMonitor.bottom)
 371                 ptItem.y = monInfo.rcMonitor.bottom - szTip.cy;
 372
 373             if (ptItem.x < monInfo.rcMonitor.left)
 374                 ptItem.x = monInfo.rcMonitor.left;
 375
 376             if (ptItem.y < monInfo.rcMonitor.top)
 377                 ptItem.y = monInfo.rcMonitor.top;
 378
 379             TRACE("ptItem { %d, %d }\n", ptItem.x, ptItem.y);
 380
 381             ::SetWindowPos(hdr->hwndFrom, NULL, ptItem.x, ptItem.y, 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
 382
 383             return TRUE;
 384         }
 385
 386         bHandled = FALSE;
 387         return 0;
 388     }
 389
 390
 391 public:
 392     BEGIN_MSG_MAP(CNotifyToolbar)
 393         MESSAGE_RANGE_HANDLER(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseEvent)
 394         NOTIFY_CODE_HANDLER(TTN_SHOW, OnTooltipShow)
 395     END_MSG_MAP()
 396
 397     void Initialize(HWND hWndParent)
 398     {
 399         DWORD styles =
 400             WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN |
 401             TBSTYLE_FLAT | TBSTYLE_TOOLTIPS | TBSTYLE_WRAPABLE | TBSTYLE_TRANSPARENT |
 402             CCS_TOP | CCS_NORESIZE | CCS_NOPARENTALIGN | CCS_NODIVIDER;
 403
 404         SubclassWindow(CToolbar::Create(hWndParent, styles));
 405
 406         SetWindowTheme(m_hWnd, L"TrayNotify", NULL);
 407
 408         m_ImageList = ImageList_Create(16, 16, ILC_COLOR32 | ILC_MASK, 0, 1000);
 409         SetImageList(m_ImageList);
 410
 411         SetButtonSize(ICON_SIZE, ICON_SIZE);
 412     }
 413 };
 414
 415 class CSysPagerWnd :
 416     public CComObjectRootEx<CComMultiThreadModelNoCS>,
 417     public CWindowImpl < CSysPagerWnd, CWindow, CControlWinTraits >
 418 {
 419     CNotifyToolbar Toolbar;
 420
 421 public:
 422     CSysPagerWnd() {}
 423     virtual ~CSysPagerWnd() {}
 424
 425     LRESULT DrawBackground(HDC hdc)
 426     {
 427         RECT rect;
 428
 429         GetClientRect(&rect);
 430         DrawThemeParentBackground(m_hWnd, hdc, &rect);
 431
 432         return TRUE;
 433     }
 434
 435     LRESULT OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 436     {
 437         HDC hdc = (HDC) wParam;
 438
 439         if (!IsAppThemed())
 440         {
 441             bHandled = FALSE;
 442             return 0;
 443         }
 444
 445         return DrawBackground(hdc);
 446     }
 447
 448     LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 449     {
 450         Toolbar.Initialize(m_hWnd);
 451
 452         // Explicitly request running applications to re-register their systray icons
 453         ::SendNotifyMessageW(HWND_BROADCAST,
 454                              RegisterWindowMessageW(L"TaskbarCreated"),
 455                              0, 0);
 456
 457         return TRUE;
 458     }
 459
 460     BOOL NotifyIconCmd(WPARAM wParam, LPARAM lParam)
 461     {
 462         PCOPYDATASTRUCT cpData = (PCOPYDATASTRUCT) lParam;
 463         if (cpData->dwData == 1)
 464         {
 465             SYS_PAGER_COPY_DATA * data;
 466             NOTIFYICONDATA *iconData;
 467             HWND parentHWND;
 468             RECT windowRect;
 469             BOOL ret = FALSE;
 470             parentHWND = GetParent();
 471             parentHWND = ::GetParent(parentHWND);
 472             ::GetClientRect(parentHWND, &windowRect);
 473
 474             data = (PSYS_PAGER_COPY_DATA) cpData->lpData;
 475             iconData = &data->nicon_data;
 476
 477             TRACE("NotifyIconCmd received. Code=%d\n", data->notify_code);
 478             switch (data->notify_code)
 479             {
 480             case NIM_ADD:
 481                 ret = Toolbar.AddButton(iconData);
 482                 break;
 483             case NIM_MODIFY:
 484                 ret = Toolbar.UpdateButton(iconData);
 485                 break;
 486             case NIM_DELETE:
 487                 ret = Toolbar.RemoveButton(iconData);
 488                 break;
 489             default:
 490                 TRACE("NotifyIconCmd received with unknown code %d.\n", data->notify_code);
 491                 return FALSE;
 492             }
 493
 494             SendMessage(parentHWND,
 495                 WM_SIZE,
 496                 0,
 497                 MAKELONG(windowRect.right - windowRect.left,
 498                          windowRect.bottom - windowRect.top));
 499
 500             return ret;
 501         }
 502
 503         return TRUE;
 504     }
 505
 506     void GetSize(IN WPARAM wParam, IN PSIZE size)
 507     {
 508         INT rows = 0;
 509         int VisibleButtonCount = Toolbar.GetVisibleButtonCount();
 510
 511         if (wParam) /* horizontal */
 512         {
 513             rows = size->cy / 24;
 514             if (rows == 0)
 515                 rows++;
 516             size->cx = (VisibleButtonCount + rows - 1) / rows * 24;
 517         }
 518         else
 519         {
 520             rows = size->cx / 24;
 521             if (rows == 0)
 522                 rows++;
 523             size->cy = (VisibleButtonCount + rows - 1) / rows * 24;
 524         }
 525     }
 526
 527     LRESULT OnGetInfoTip(INT uCode, LPNMHDR hdr, BOOL& bHandled)
 528     {
 529         NMTBGETINFOTIPW * nmtip = (NMTBGETINFOTIPW *) hdr;
 530         Toolbar.GetTooltipText(nmtip->iItem, nmtip->pszText, nmtip->cchTextMax);
 531         return TRUE;
 532     }
 533
 534     LRESULT OnCustomDraw(INT uCode, LPNMHDR hdr, BOOL& bHandled)
 535     {
 536         NMCUSTOMDRAW * cdraw = (NMCUSTOMDRAW *) hdr;
 537         switch (cdraw->dwDrawStage)
 538         {
 539         case CDDS_PREPAINT:
 540             return CDRF_NOTIFYITEMDRAW;
 541
 542         case CDDS_ITEMPREPAINT:
 543             return TBCDRF_NOBACKGROUND | TBCDRF_NOEDGES | TBCDRF_NOOFFSET | TBCDRF_NOMARK | TBCDRF_NOETCHEDEFFECT;
 544         }
 545         return TRUE;
 546     }
 547
 548     LRESULT OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 549     {
 550         LRESULT Ret = TRUE;
 551         SIZE szClient;
 552         szClient.cx = LOWORD(lParam);
 553         szClient.cy = HIWORD(lParam);
 554
 555         Ret = DefWindowProc(uMsg, wParam, lParam);
 556
 557         if (Toolbar)
 558         {
 559             TBMETRICS tbm;
 560             tbm.cbSize = sizeof(tbm);
 561             tbm.dwMask = TBMF_BARPAD | TBMF_BUTTONSPACING;
 562             tbm.cxBarPad = tbm.cyBarPad = 0;
 563             tbm.cxButtonSpacing = 0;
 564             tbm.cyButtonSpacing = 0;
 565
 566             Toolbar.SetMetrics(&tbm);
 567
 568             Toolbar.SetWindowPos(NULL, 0, 0, szClient.cx, szClient.cy, SWP_NOZORDER);
 569             Toolbar.AutoSize();
 570
 571             RECT rc;
 572             Toolbar.GetClientRect(&rc);
 573
 574             SIZE szBar = { rc.right - rc.left, rc.bottom - rc.top };
 575
 576             INT xOff = (szClient.cx - szBar.cx) / 2;
 577             INT yOff = (szClient.cy - szBar.cy) / 2;
 578
 579             Toolbar.SetWindowPos(NULL, xOff, yOff, szBar.cx, szBar.cy, SWP_NOZORDER);
 580         }
 581         return Ret;
 582     }
 583
 584     LRESULT OnCtxMenu(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 585     {
 586         bHandled = TRUE;
 587         return 0;
 588     }
 589
 590     DECLARE_WND_CLASS_EX(szSysPagerWndClass, CS_DBLCLKS, COLOR_3DFACE)
 591
 592     BEGIN_MSG_MAP(CTaskSwitchWnd)
 593         MESSAGE_HANDLER(WM_CREATE, OnCreate)
 594         MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
 595         MESSAGE_HANDLER(WM_SIZE, OnSize)
 596         MESSAGE_HANDLER(WM_CONTEXTMENU, OnCtxMenu)
 597         NOTIFY_CODE_HANDLER(TBN_GETINFOTIPW, OnGetInfoTip)
 598         NOTIFY_CODE_HANDLER(NM_CUSTOMDRAW, OnCustomDraw)
 599     END_MSG_MAP()
 600
 601     HWND _Init(IN HWND hWndParent, IN BOOL bVisible)
 602     {
 603         DWORD dwStyle;
 604
 605         /* Create the window. The tray window is going to move it to the correct
 606             position and resize it as needed. */
 607         dwStyle = WS_CHILD | WS_CLIPSIBLINGS;
 608         if (bVisible)
 609             dwStyle |= WS_VISIBLE;
 610
 611         Create(hWndParent, 0, NULL, dwStyle);
 612
 613         if (!m_hWnd)
 614         {
 615             return NULL;
 616         }
 617
 618         SetWindowTheme(m_hWnd, L"TrayNotify", NULL);
 619
 620         return m_hWnd;
 621     }
 622 };
 623
 624 /*
 625  * TrayClockWnd
 626  */
 627
 628 static const WCHAR szTrayClockWndClass[] = L"TrayClockWClass";
 629
 630 #define ID_TRAYCLOCK_TIMER  0
 631 #define ID_TRAYCLOCK_TIMER_INIT 1
 632
 633 static const struct
 634 {
 635     BOOL IsTime;
 636     DWORD dwFormatFlags;
 637     LPCWSTR lpFormat;
 638 } ClockWndFormats [] = {
 639     { TRUE, 0, NULL },
 640     { FALSE, 0, L"dddd" },
 641     { FALSE, DATE_SHORTDATE, NULL }
 642 };
 643
 644 #define CLOCKWND_FORMAT_COUNT (_ARRAYSIZE(ClockWndFormats))
 645
 646 #define TRAY_CLOCK_WND_SPACING_X    0
 647 #define TRAY_CLOCK_WND_SPACING_Y    0
 648
 649 class CTrayClockWnd :
 650     public CComObjectRootEx<CComMultiThreadModelNoCS>,
 651     public CWindowImpl < CTrayClockWnd, CWindow, CControlWinTraits >
 652 {
 653     HWND hWndNotify;
 654     HFONT hFont;
 655     COLORREF textColor;
 656     RECT rcText;
 657     SYSTEMTIME LocalTime;
 658
 659     union
 660     {
 661         DWORD dwFlags;
 662         struct
 663         {
 664             DWORD IsTimerEnabled : 1;
 665             DWORD IsInitTimerEnabled : 1;
 666             DWORD LinesMeasured : 1;
 667             DWORD IsHorizontal : 1;
 668         };
 669     };
 670     DWORD LineSpacing;
 671     SIZE CurrentSize;
 672     WORD VisibleLines;
 673     SIZE LineSizes[CLOCKWND_FORMAT_COUNT];
 674     WCHAR szLines[CLOCKWND_FORMAT_COUNT][48];
 675
 676 public:
 677     CTrayClockWnd() :
 678         hWndNotify(NULL),
 679         hFont(NULL),
 680         dwFlags(0),
 681         LineSpacing(0),
 682         VisibleLines(0)
 683     {
 684         ZeroMemory(&textColor, sizeof(textColor));
 685         ZeroMemory(&rcText, sizeof(rcText));
 686         ZeroMemory(&LocalTime, sizeof(LocalTime));
 687         ZeroMemory(&CurrentSize, sizeof(CurrentSize));
 688         ZeroMemory(LineSizes, sizeof(LineSizes));
 689         ZeroMemory(szLines, sizeof(szLines));
 690     }
 691     virtual ~CTrayClockWnd() { }
 692
 693     LRESULT OnThemeChanged()
 694     {
 695         LOGFONTW clockFont;
 696         HTHEME clockTheme;
 697         HFONT hFont;
 698
 699         clockTheme = OpenThemeData(m_hWnd, L"Clock");
 700
 701         if (clockTheme)
 702         {
 703             GetThemeFont(clockTheme,
 704                 NULL,
 705                 CLP_TIME,
 706                 0,
 707                 TMT_FONT,
 708                 &clockFont);
 709
 710             hFont = CreateFontIndirectW(&clockFont);
 711
 712             GetThemeColor(clockTheme,
 713                 CLP_TIME,
 714                 0,
 715                 TMT_TEXTCOLOR,
 716                 &textColor);
 717
 718             if (this->hFont != NULL)
 719                 DeleteObject(this->hFont);
 720
 721             SetFont(hFont, FALSE);
 722         }
 723         else
 724         {
 725             /* We don't need to set a font here, our parent will use
 726               * WM_SETFONT to set the right one when themes are not enabled. */
 727             textColor = RGB(0, 0, 0);
 728         }
 729
 730         CloseThemeData(clockTheme);
 731
 732         return TRUE;
 733     }
 734
 735     LRESULT OnThemeChanged(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 736     {
 737         return OnThemeChanged();
 738     }
 739
 740     BOOL MeasureLines()
 741     {
 742         HDC hDC;
 743         HFONT hPrevFont;
 744         UINT c, i;
 745         BOOL bRet = TRUE;
 746
 747         hDC = GetDC();
 748         if (hDC != NULL)
 749         {
 750             if (hFont)
 751                 hPrevFont = (HFONT) SelectObject(hDC, hFont);
 752
 753             for (i = 0; i < CLOCKWND_FORMAT_COUNT && bRet; i++)
 754             {
 755                 if (szLines[i][0] != L'\0' &&
 756                     !GetTextExtentPointW(hDC, szLines[i], wcslen(szLines[i]),
 757                                          &LineSizes[i]))
 758                 {
 759                     bRet = FALSE;
 760                     break;
 761                 }
 762             }
 763
 764             if (hFont)
 765                 SelectObject(hDC, hPrevFont);
 766
 767             ReleaseDC(hDC);
 768
 769             if (bRet)
 770             {
 771                 LineSpacing = 0;
 772
 773                 /* calculate the line spacing */
 774                 for (i = 0, c = 0; i < CLOCKWND_FORMAT_COUNT; i++)
 775                 {
 776                     if (LineSizes[i].cx > 0)
 777                     {
 778                         LineSpacing += LineSizes[i].cy;
 779                         c++;
 780                     }
 781                 }
 782
 783                 if (c > 0)
 784                 {
 785                     /* We want a spacing of 1/2 line */
 786                     LineSpacing = (LineSpacing / c) / 2;
 787                 }
 788
 789                 return TRUE;
 790             }
 791         }
 792
 793         return FALSE;
 794     }
 795
 796     WORD GetMinimumSize(IN BOOL Horizontal, IN OUT PSIZE pSize)
 797     {
 798         WORD iLinesVisible = 0;
 799         UINT i;
 800         SIZE szMax = { 0, 0 };
 801
 802         if (!LinesMeasured)
 803             LinesMeasured = MeasureLines();
 804
 805         if (!LinesMeasured)
 806             return 0;
 807
 808         for (i = 0; i < CLOCKWND_FORMAT_COUNT; i++)
 809         {
 810             if (LineSizes[i].cx != 0)
 811             {
 812                 if (iLinesVisible > 0)
 813                 {
 814                     if (Horizontal)
 815                     {
 816                         if (szMax.cy + LineSizes[i].cy + (LONG) LineSpacing >
 817                             pSize->cy - (2 * TRAY_CLOCK_WND_SPACING_Y))
 818                         {
 819                             break;
 820                         }
 821                     }
 822                     else
 823                     {
 824                         if (LineSizes[i].cx > pSize->cx - (2 * TRAY_CLOCK_WND_SPACING_X))
 825                             break;
 826                     }
 827
 828                     /* Add line spacing */
 829                     szMax.cy += LineSpacing;
 830                 }
 831
 832                 iLinesVisible++;
 833
 834                 /* Increase maximum rectangle */
 835                 szMax.cy += LineSizes[i].cy;
 836                 if (LineSizes[i].cx > szMax.cx - (2 * TRAY_CLOCK_WND_SPACING_X))
 837                     szMax.cx = LineSizes[i].cx + (2 * TRAY_CLOCK_WND_SPACING_X);
 838             }
 839         }
 840
 841         szMax.cx += 2 * TRAY_CLOCK_WND_SPACING_X;
 842         szMax.cy += 2 * TRAY_CLOCK_WND_SPACING_Y;
 843
 844         *pSize = szMax;
 845
 846         return iLinesVisible;
 847     }
 848
 849
 850     VOID UpdateWnd()
 851     {
 852         SIZE szPrevCurrent;
 853         UINT BufSize, i;
 854         INT iRet;
 855         RECT rcClient;
 856
 857         ZeroMemory(LineSizes, sizeof(LineSizes));
 858
 859         szPrevCurrent = CurrentSize;
 860
 861         for (i = 0; i < CLOCKWND_FORMAT_COUNT; i++)
 862         {
 863             szLines[i][0] = L'\0';
 864             BufSize = _countof(szLines[0]);
 865
 866             if (ClockWndFormats[i].IsTime)
 867             {
 868                 iRet = GetTimeFormat(LOCALE_USER_DEFAULT,
 869                     TaskBarSettings.bShowSeconds ? ClockWndFormats[i].dwFormatFlags : TIME_NOSECONDS,
 870                     &LocalTime,
 871                     ClockWndFormats[i].lpFormat,
 872                     szLines[i],
 873                     BufSize);
 874             }
 875             else
 876             {
 877                 iRet = GetDateFormat(LOCALE_USER_DEFAULT,
 878                     ClockWndFormats[i].dwFormatFlags,
 879                     &LocalTime,
 880                     ClockWndFormats[i].lpFormat,
 881                     szLines[i],
 882                     BufSize);
 883             }
 884
 885             if (iRet != 0 && i == 0)
 886             {
 887                 /* Set the window text to the time only */
 888                 SetWindowText(szLines[i]);
 889             }
 890         }
 891
 892         LinesMeasured = MeasureLines();
 893
 894         if (LinesMeasured &&
 895             GetClientRect(&rcClient))
 896         {
 897             SIZE szWnd;
 898
 899             szWnd.cx = rcClient.right;
 900             szWnd.cy = rcClient.bottom;
 901
 902             VisibleLines = GetMinimumSize(IsHorizontal, &szWnd);
 903             CurrentSize = szWnd;
 904         }
 905
 906         if (IsWindowVisible())
 907         {
 908             InvalidateRect(NULL, TRUE);
 909
 910             if (hWndNotify != NULL &&
 911                 (szPrevCurrent.cx != CurrentSize.cx ||
 912                 szPrevCurrent.cy != CurrentSize.cy))
 913             {
 914                 NMHDR nmh;
 915
 916                 nmh.hwndFrom = m_hWnd;
 917                 nmh.idFrom = GetWindowLongPtr(GWLP_ID);
 918                 nmh.code = NTNWM_REALIGN;
 919
 920                 SendMessage(hWndNotify,
 921                     WM_NOTIFY,
 922                     (WPARAM) nmh.idFrom,
 923                     (LPARAM) &nmh);
 924             }
 925         }
 926     }
 927
 928     VOID Update()
 929     {
 930         GetLocalTime(&LocalTime);
 931         UpdateWnd();
 932     }
 933
 934     UINT CalculateDueTime()
 935     {
 936         UINT uiDueTime;
 937
 938         /* Calculate the due time */
 939         GetLocalTime(&LocalTime);
 940         uiDueTime = 1000 - (UINT) LocalTime.wMilliseconds;
 941         if (TaskBarSettings.bShowSeconds)
 942             uiDueTime += (UINT) LocalTime.wSecond * 100;
 943         else
 944             uiDueTime += (59 - (UINT) LocalTime.wSecond) * 1000;
 945
 946         if (uiDueTime < USER_TIMER_MINIMUM || uiDueTime > USER_TIMER_MAXIMUM)
 947             uiDueTime = 1000;
 948         else
 949         {
 950             /* Add an artificial delay of 0.05 seconds to make sure the timer
 951                doesn't fire too early*/
 952             uiDueTime += 50;
 953         }
 954
 955         return uiDueTime;
 956     }
 957
 958     BOOL ResetTime()
 959     {
 960         UINT uiDueTime;
 961         BOOL Ret;
 962
 963         /* Disable all timers */
 964         if (IsTimerEnabled)
 965         {
 966             KillTimer(ID_TRAYCLOCK_TIMER);
 967             IsTimerEnabled = FALSE;
 968         }
 969
 970         if (IsInitTimerEnabled)
 971         {
 972             KillTimer(ID_TRAYCLOCK_TIMER_INIT);
 973         }
 974
 975         uiDueTime = CalculateDueTime();
 976
 977         /* Set the new timer */
 978         Ret = SetTimer(ID_TRAYCLOCK_TIMER_INIT, uiDueTime, NULL) != 0;
 979         IsInitTimerEnabled = Ret;
 980
 981         /* Update the time */
 982         Update();
 983
 984         return Ret;
 985     }
 986
 987     VOID CalibrateTimer()
 988     {
 989         UINT uiDueTime;
 990         BOOL Ret;
 991         UINT uiWait1, uiWait2;
 992
 993         /* Kill the initialization timer */
 994         KillTimer(ID_TRAYCLOCK_TIMER_INIT);
 995         IsInitTimerEnabled = FALSE;
 996
 997         uiDueTime = CalculateDueTime();
 998
 999         if (TaskBarSettings.bShowSeconds)
1000         {
1001             uiWait1 = 1000 - 200;
1002             uiWait2 = 1000;
1003         }
1004         else
1005         {
1006             uiWait1 = 60 * 1000 - 200;
1007             uiWait2 = 60 * 1000;
1008         }
1009
1010         if (uiDueTime > uiWait1)
1011         {
1012             /* The update of the clock will be up to 200 ms late, but that's
1013                acceptable. We're going to setup a timer that fires depending
1014                uiWait2. */
1015             Ret = SetTimer(ID_TRAYCLOCK_TIMER, uiWait2, NULL) != 0;
1016             IsTimerEnabled = Ret;
1017
1018             /* Update the time */
1019             Update();
1020         }
1021         else
1022         {
1023             /* Recalibrate the timer and recalculate again when the current
1024                minute/second ends. */
1025             ResetTime();
1026         }
1027     }
1028
1029     LRESULT OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1030     {
1031         /* Disable all timers */
1032         if (IsTimerEnabled)
1033         {
1034             KillTimer(ID_TRAYCLOCK_TIMER);
1035         }
1036
1037         if (IsInitTimerEnabled)
1038         {
1039             KillTimer(ID_TRAYCLOCK_TIMER_INIT);
1040         }
1041
1042         return TRUE;
1043     }
1044
1045     LRESULT OnPaint(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1046     {
1047         RECT rcClient;
1048         HFONT hPrevFont;
1049         INT iPrevBkMode;
1050         UINT i, line;
1051
1052         PAINTSTRUCT ps;
1053         HDC hDC = (HDC) wParam;
1054
1055         if (wParam == 0)
1056         {
1057             hDC = BeginPaint(&ps);
1058         }
1059
1060         if (hDC == NULL)
1061             return FALSE;
1062
1063         if (LinesMeasured &&
1064             GetClientRect(&rcClient))
1065         {
1066             iPrevBkMode = SetBkMode(hDC, TRANSPARENT);
1067
1068             SetTextColor(hDC, textColor);
1069
1070             hPrevFont = (HFONT) SelectObject(hDC, hFont);
1071
1072             rcClient.left = (rcClient.right / 2) - (CurrentSize.cx / 2);
1073             rcClient.top = (rcClient.bottom / 2) - (CurrentSize.cy / 2);
1074             rcClient.right = rcClient.left + CurrentSize.cx;
1075             rcClient.bottom = rcClient.top + CurrentSize.cy;
1076
1077             for (i = 0, line = 0;
1078                  i < CLOCKWND_FORMAT_COUNT && line < VisibleLines;
1079                  i++)
1080             {
1081                 if (LineSizes[i].cx != 0)
1082                 {
1083                     TextOut(hDC,
1084                         rcClient.left + (CurrentSize.cx / 2) - (LineSizes[i].cx / 2) +
1085                         TRAY_CLOCK_WND_SPACING_X,
1086                         rcClient.top + TRAY_CLOCK_WND_SPACING_Y,
1087                         szLines[i],
1088                         wcslen(szLines[i]));
1089
1090                     rcClient.top += LineSizes[i].cy + LineSpacing;
1091                     line++;
1092                 }
1093             }
1094
1095             SelectObject(hDC, hPrevFont);
1096
1097             SetBkMode(hDC, iPrevBkMode);
1098         }
1099
1100         if (wParam == 0)
1101         {
1102             EndPaint(&ps);
1103         }
1104
1105         return TRUE;
1106     }
1107
1108     VOID SetFont(IN HFONT hNewFont, IN BOOL bRedraw)
1109     {
1110         hFont = hNewFont;
1111         LinesMeasured = MeasureLines();
1112         if (bRedraw)
1113         {
1114             InvalidateRect(NULL, TRUE);
1115         }
1116     }
1117
1118     LRESULT DrawBackground(HDC hdc)
1119     {
1120         RECT rect;
1121
1122         GetClientRect(&rect);
1123         DrawThemeParentBackground(m_hWnd, hdc, &rect);
1124
1125         return TRUE;
1126     }
1127
1128     LRESULT OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1129     {
1130         HDC hdc = (HDC) wParam;
1131
1132         if (!IsAppThemed())
1133         {
1134             bHandled = FALSE;
1135             return 0;
1136         }
1137
1138         return DrawBackground(hdc);
1139     }
1140
1141     LRESULT OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1142     {
1143         switch (wParam)
1144         {
1145         case ID_TRAYCLOCK_TIMER:
1146             Update();
1147             break;
1148
1149         case ID_TRAYCLOCK_TIMER_INIT:
1150             CalibrateTimer();
1151             break;
1152         }
1153         return TRUE;
1154     }
1155
1156     LRESULT OnGetMinimumSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1157     {
1158         IsHorizontal = (BOOL) wParam;
1159
1160         return (LRESULT) GetMinimumSize((BOOL) wParam, (PSIZE) lParam) != 0;
1161     }
1162
1163     LRESULT OnUpdateTime(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1164     {
1165         return (LRESULT) ResetTime();
1166     }
1167
1168     LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1169     {
1170         return HTTRANSPARENT;
1171     }
1172
1173     LRESULT OnSetFont(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1174     {
1175         SetFont((HFONT) wParam, (BOOL) LOWORD(lParam));
1176         return TRUE;
1177     }
1178
1179     LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1180     {
1181         ResetTime();
1182         return TRUE;
1183     }
1184
1185     LRESULT OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1186     {
1187         SIZE szClient;
1188
1189         szClient.cx = LOWORD(lParam);
1190         szClient.cy = HIWORD(lParam);
1191
1192         VisibleLines = GetMinimumSize(IsHorizontal, &szClient);
1193         CurrentSize = szClient;
1194
1195         InvalidateRect(NULL, TRUE);
1196         return TRUE;
1197     }
1198
1199     DECLARE_WND_CLASS_EX(szTrayClockWndClass, CS_DBLCLKS, COLOR_3DFACE)
1200
1201     BEGIN_MSG_MAP(CTaskSwitchWnd)
1202         MESSAGE_HANDLER(WM_CREATE, OnCreate)
1203         MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
1204         MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
1205         MESSAGE_HANDLER(WM_SIZE, OnSize)
1206         MESSAGE_HANDLER(WM_PAINT, OnPaint)
1207         MESSAGE_HANDLER(WM_PRINTCLIENT, OnPaint)
1208         MESSAGE_HANDLER(WM_THEMECHANGED, OnThemeChanged)
1209         MESSAGE_HANDLER(WM_TIMER, OnTimer)
1210         MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
1211         MESSAGE_HANDLER(WM_SETFONT, OnSetFont)
1212         MESSAGE_HANDLER(TCWM_GETMINIMUMSIZE, OnGetMinimumSize)
1213         MESSAGE_HANDLER(TCWM_UPDATETIME, OnUpdateTime)
1214
1215     END_MSG_MAP()
1216
1217     HWND _Init(IN HWND hWndParent, IN BOOL bVisible)
1218     {
1219         IsHorizontal = TRUE;
1220
1221         hWndNotify = hWndParent;
1222
1223         /* Create the window. The tray window is going to move it to the correct
1224             position and resize it as needed. */
1225         DWORD dwStyle = WS_CHILD | WS_CLIPSIBLINGS;
1226         if (bVisible)
1227             dwStyle |= WS_VISIBLE;
1228
1229         Create(hWndParent, 0, NULL, dwStyle);
1230
1231         if (m_hWnd != NULL)
1232             SetWindowTheme(m_hWnd, L"TrayNotify", NULL);
1233
1234         return m_hWnd;
1235
1236     }
1237 };
1238
1239 /*
1240  * TrayNotifyWnd
1241  */
1242
1243 static const WCHAR szTrayNotifyWndClass [] = TEXT("TrayNotifyWnd");
1244
1245 #define TRAY_NOTIFY_WND_SPACING_X   2
1246 #define TRAY_NOTIFY_WND_SPACING_Y   2
1247
1248 class CTrayNotifyWnd :
1249     public CComObjectRootEx<CComMultiThreadModelNoCS>,
1250     public CWindowImpl < CTrayNotifyWnd, CWindow, CControlWinTraits >
1251 {
1252     HWND hWndNotify;
1253
1254     CSysPagerWnd * m_pager;
1255     CTrayClockWnd * m_clock;
1256
1257     CComPtr<ITrayWindow> TrayWindow;
1258
1259     HTHEME TrayTheme;
1260     SIZE szTrayClockMin;
1261     SIZE szTrayNotify;
1262     MARGINS ContentMargin;
1263     HFONT hFontClock;
1264     union
1265     {
1266         DWORD dwFlags;
1267         struct
1268         {
1269             DWORD HideClock : 1;
1270             DWORD IsHorizontal : 1;
1271         };
1272     };
1273
1274 public:
1275     CTrayNotifyWnd() :
1276         hWndNotify(NULL),
1277         m_pager(NULL),
1278         m_clock(NULL),
1279         TrayTheme(NULL),
1280         hFontClock(NULL),
1281         dwFlags(0)
1282     {
1283         ZeroMemory(&szTrayClockMin, sizeof(szTrayClockMin));
1284         ZeroMemory(&szTrayNotify, sizeof(szTrayNotify));
1285         ZeroMemory(&ContentMargin, sizeof(ContentMargin));
1286     }
1287     virtual ~CTrayNotifyWnd() { }
1288
1289     LRESULT OnThemeChanged()
1290     {
1291         if (TrayTheme)
1292             CloseThemeData(TrayTheme);
1293
1294         if (IsThemeActive())
1295             TrayTheme = OpenThemeData(m_hWnd, L"TrayNotify");
1296         else
1297             TrayTheme = NULL;
1298
1299         if (TrayTheme)
1300         {
1301             SetWindowExStyle(m_hWnd, WS_EX_STATICEDGE, 0);
1302
1303             GetThemeMargins(TrayTheme,
1304                 NULL,
1305                 TNP_BACKGROUND,
1306                 0,
1307                 TMT_CONTENTMARGINS,
1308                 NULL,
1309                 &ContentMargin);
1310         }
1311         else
1312         {
1313             SetWindowExStyle(m_hWnd, WS_EX_STATICEDGE, WS_EX_STATICEDGE);
1314
1315             ContentMargin.cxLeftWidth = 0;
1316             ContentMargin.cxRightWidth = 0;
1317             ContentMargin.cyTopHeight = 0;
1318             ContentMargin.cyBottomHeight = 0;
1319         }
1320
1321         return TRUE;
1322     }
1323
1324     LRESULT OnThemeChanged(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1325     {
1326         return OnThemeChanged();
1327     }
1328
1329     LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1330     {
1331         m_clock = new CTrayClockWnd();
1332         m_clock->_Init(m_hWnd, !HideClock);
1333
1334         m_pager = new CSysPagerWnd();
1335         m_pager->_Init(m_hWnd, !HideClock);
1336
1337         OnThemeChanged();
1338
1339         return TRUE;
1340     }
1341
1342     BOOL GetMinimumSize(IN BOOL Horizontal, IN OUT PSIZE pSize)
1343     {
1344         SIZE szClock = { 0, 0 };
1345         SIZE szTray = { 0, 0 };
1346
1347         IsHorizontal = Horizontal;
1348         if (IsHorizontal)
1349             SetWindowTheme(m_hWnd, L"TrayNotifyHoriz", NULL);
1350         else
1351             SetWindowTheme(m_hWnd, L"TrayNotifyVert", NULL);
1352
1353         if (!HideClock)
1354         {
1355             if (Horizontal)
1356             {
1357                 szClock.cy = pSize->cy - 2 * TRAY_NOTIFY_WND_SPACING_Y;
1358                 if (szClock.cy <= 0)
1359                     goto NoClock;
1360             }
1361             else
1362             {
1363                 szClock.cx = pSize->cx - 2 * TRAY_NOTIFY_WND_SPACING_X;
1364                 if (szClock.cx <= 0)
1365                     goto NoClock;
1366             }
1367
1368             m_clock->SendMessage(TCWM_GETMINIMUMSIZE, (WPARAM) Horizontal, (LPARAM) &szClock);
1369
1370             szTrayClockMin = szClock;
1371         }
1372         else
1373         NoClock:
1374         szTrayClockMin = szClock;
1375
1376         if (Horizontal)
1377         {
1378             szTray.cy = pSize->cy - 2 * TRAY_NOTIFY_WND_SPACING_Y;
1379         }
1380         else
1381         {
1382             szTray.cx = pSize->cx - 2 * TRAY_NOTIFY_WND_SPACING_X;
1383         }
1384
1385         m_pager->GetSize(Horizontal, &szTray);
1386
1387         szTrayNotify = szTray;
1388
1389         if (Horizontal)
1390         {
1391             pSize->cx = 2 * TRAY_NOTIFY_WND_SPACING_X;
1392
1393             if (!HideClock)
1394                 pSize->cx += TRAY_NOTIFY_WND_SPACING_X + szTrayClockMin.cx;
1395
1396             pSize->cx += szTray.cx;
1397         }
1398         else
1399         {
1400             pSize->cy = 2 * TRAY_NOTIFY_WND_SPACING_Y;
1401
1402             if (!HideClock)
1403                 pSize->cy += TRAY_NOTIFY_WND_SPACING_Y + szTrayClockMin.cy;
1404
1405             pSize->cy += szTray.cy;
1406         }
1407
1408         pSize->cy += ContentMargin.cyTopHeight + ContentMargin.cyBottomHeight;
1409         pSize->cx += ContentMargin.cxLeftWidth + ContentMargin.cxRightWidth;
1410
1411         return TRUE;
1412     }
1413
1414     VOID Size(IN const SIZE *pszClient)
1415     {
1416         if (!HideClock)
1417         {
1418             POINT ptClock;
1419             SIZE szClock;
1420
1421             if (IsHorizontal)
1422             {
1423                 ptClock.x = pszClient->cx - TRAY_NOTIFY_WND_SPACING_X - szTrayClockMin.cx;
1424                 ptClock.y = TRAY_NOTIFY_WND_SPACING_Y;
1425                 szClock.cx = szTrayClockMin.cx;
1426                 szClock.cy = pszClient->cy - (2 * TRAY_NOTIFY_WND_SPACING_Y);
1427             }
1428             else
1429             {
1430                 ptClock.x = TRAY_NOTIFY_WND_SPACING_X;
1431                 ptClock.y = pszClient->cy - TRAY_NOTIFY_WND_SPACING_Y - szTrayClockMin.cy;
1432                 szClock.cx = pszClient->cx - (2 * TRAY_NOTIFY_WND_SPACING_X);
1433                 szClock.cy = szTrayClockMin.cy;
1434             }
1435
1436             m_clock->SetWindowPos(
1437                 NULL,
1438                 ptClock.x,
1439                 ptClock.y,
1440                 szClock.cx,
1441                 szClock.cy,
1442                 SWP_NOZORDER);
1443
1444             if (IsHorizontal)
1445             {
1446                 ptClock.x -= szTrayNotify.cx;
1447             }
1448             else
1449             {
1450                 ptClock.y -= szTrayNotify.cy;
1451             }
1452
1453             m_pager->SetWindowPos(
1454                 NULL,
1455                 ptClock.x,
1456                 ptClock.y,
1457                 szTrayNotify.cx,
1458                 szTrayNotify.cy,
1459                 SWP_NOZORDER);
1460         }
1461     }
1462
1463     LRESULT DrawBackground(HDC hdc)
1464     {
1465         HRESULT res;
1466         RECT rect;
1467
1468         GetClientRect(&rect);
1469
1470         if (TrayTheme)
1471         {
1472             if (IsThemeBackgroundPartiallyTransparent(TrayTheme, TNP_BACKGROUND, 0))
1473             {
1474                 DrawThemeParentBackground(m_hWnd, hdc, &rect);
1475             }
1476
1477             res = DrawThemeBackground(TrayTheme, hdc, TNP_BACKGROUND, 0, &rect, 0);
1478         }
1479
1480         return res;
1481     }
1482
1483     LRESULT OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1484     {
1485         HDC hdc = (HDC) wParam;
1486
1487         if (!TrayTheme)
1488         {
1489             bHandled = FALSE;
1490             return 0;
1491         }
1492
1493         return DrawBackground(hdc);
1494     }
1495
1496     BOOL NotifyIconCmd(WPARAM wParam, LPARAM lParam)
1497     {
1498         if (m_pager)
1499         {
1500             return m_pager->NotifyIconCmd(wParam, lParam);
1501         }
1502
1503         return TRUE;
1504     }
1505
1506     BOOL GetClockRect(OUT PRECT rcClock)
1507     {
1508         if (!m_clock->IsWindowVisible())
1509             return FALSE;
1510
1511         return m_clock->GetWindowRect(rcClock);
1512     }
1513
1514     LRESULT OnGetMinimumSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1515     {
1516         return (LRESULT) GetMinimumSize((BOOL) wParam, (PSIZE) lParam);
1517     }
1518
1519     LRESULT OnUpdateTime(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1520     {
1521         if (m_clock != NULL)
1522         {
1523             /* Forward the message to the tray clock window procedure */
1524             return m_clock->OnUpdateTime(uMsg, wParam, lParam, bHandled);
1525         }
1526         return FALSE;
1527     }
1528
1529     LRESULT OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1530     {
1531         SIZE szClient;
1532
1533         szClient.cx = LOWORD(lParam);
1534         szClient.cy = HIWORD(lParam);
1535
1536         Size(&szClient);
1537
1538         return TRUE;
1539     }
1540
1541     LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1542     {
1543         return HTTRANSPARENT;
1544     }
1545
1546     LRESULT OnShowClock(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1547     {
1548         BOOL PrevHidden = HideClock;
1549         HideClock = (wParam == 0);
1550
1551         if (m_clock != NULL && PrevHidden != HideClock)
1552         {
1553             m_clock->ShowWindow(HideClock ? SW_HIDE : SW_SHOW);
1554         }
1555
1556         return (LRESULT) (!PrevHidden);
1557     }
1558
1559     LRESULT OnNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1560     {
1561         const NMHDR *nmh = (const NMHDR *) lParam;
1562
1563         if (nmh->hwndFrom == m_clock->m_hWnd)
1564         {
1565             /* Pass down notifications */
1566             return m_clock->SendMessage(WM_NOTIFY, wParam, lParam);
1567         }
1568
1569         return FALSE;
1570     }
1571
1572     LRESULT OnSetFont(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1573     {
1574         if (m_clock != NULL)
1575         {
1576             m_clock->SendMessageW(WM_SETFONT, wParam, lParam);
1577         }
1578
1579         bHandled = FALSE;
1580         return FALSE;
1581     }
1582
1583     LRESULT OnCtxMenu(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
1584     {
1585         bHandled = TRUE;
1586         return 0;
1587     }
1588
1589     DECLARE_WND_CLASS_EX(szTrayNotifyWndClass, CS_DBLCLKS, COLOR_3DFACE)
1590
1591     BEGIN_MSG_MAP(CTaskSwitchWnd)
1592         MESSAGE_HANDLER(WM_CREATE, OnCreate)
1593         MESSAGE_HANDLER(WM_THEMECHANGED, OnThemeChanged)
1594         MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
1595         MESSAGE_HANDLER(WM_SIZE, OnSize)
1596         MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
1597         MESSAGE_HANDLER(WM_NOTIFY, OnNotify)
1598         MESSAGE_HANDLER(WM_SETFONT, OnSetFont)
1599         MESSAGE_HANDLER(WM_CONTEXTMENU, OnCtxMenu) // FIXME: This handler is not necessary in Windows
1600         MESSAGE_HANDLER(TNWM_GETMINIMUMSIZE, OnGetMinimumSize)
1601         MESSAGE_HANDLER(TNWM_UPDATETIME, OnUpdateTime)
1602         MESSAGE_HANDLER(TNWM_SHOWCLOCK, OnShowClock)
1603     END_MSG_MAP()
1604
1605     HWND _Init(IN OUT ITrayWindow *TrayWindow, IN BOOL bHideClock)
1606     {
1607         HWND hWndTrayWindow;
1608
1609         hWndTrayWindow = TrayWindow->GetHWND();
1610         if (hWndTrayWindow == NULL)
1611             return NULL;
1612
1613         this->TrayWindow = TrayWindow;
1614         this->HideClock = bHideClock;
1615         this->hWndNotify = hWndTrayWindow;
1616
1617         DWORD dwStyle = WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
1618         return Create(hWndTrayWindow, 0, NULL, dwStyle, WS_EX_STATICEDGE);
1619     }
1620 };
1621
1622 HWND CreateTrayNotifyWnd(IN OUT ITrayWindow *Tray, BOOL bHideClock, CTrayNotifyWnd** ppinstance)
1623 {
1624     CTrayNotifyWnd * pTrayNotify = new CTrayNotifyWnd();
1625     // TODO: Destroy after the window is destroyed
1626     *ppinstance = pTrayNotify;
1627
1628     return pTrayNotify->_Init(Tray, bHideClock);
1629 }
1630
1631 BOOL
1632 TrayNotify_NotifyIconCmd(CTrayNotifyWnd* pTrayNotify, WPARAM wParam, LPARAM lParam)
1633 {
1634     return pTrayNotify->NotifyIconCmd(wParam, lParam);
1635 }
1636
1637 BOOL
1638 TrayNotify_GetClockRect(CTrayNotifyWnd* pTrayNotify, OUT PRECT rcClock)
1639 {
1640     return pTrayNotify->GetClockRect(rcClock);
1641 }