summaryrefslogtreecommitdiffstats
path: root/src/gui/util/qsystemtrayicon_win.cpp
blob: 2b7935b03e3e2ad031cdd547f53bed8a19dee28f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qsystemtrayicon_p.h"
#ifndef QT_NO_SYSTEMTRAYICON

#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0600
#endif

#ifndef _WIN32_IE
#define _WIN32_IE 0x600
#endif

#include <qt_windows.h>
#include <windowsx.h>
#include <commctrl.h>

#include <private/qsystemlibrary_p.h>
#include <QApplication>
#include <QSettings>

QT_BEGIN_NAMESPACE

static const UINT q_uNOTIFYICONID = 0;

static uint MYWM_TASKBARCREATED = 0;
#define MYWM_NOTIFYICON (WM_APP+101)

struct Q_NOTIFYICONIDENTIFIER {
    DWORD cbSize;
    HWND hWnd;
    UINT uID;
    GUID guidItem;
};

#ifndef NOTIFYICON_VERSION_4
#define NOTIFYICON_VERSION_4 4
#endif

#ifndef NIN_SELECT
#define NIN_SELECT (WM_USER + 0)
#endif

#ifndef NIN_KEYSELECT
#define NIN_KEYSELECT (WM_USER + 1)
#endif

#ifndef NIN_BALLOONTIMEOUT
#define NIN_BALLOONTIMEOUT (WM_USER + 4)
#endif

#ifndef NIN_BALLOONUSERCLICK
#define NIN_BALLOONUSERCLICK (WM_USER + 5)
#endif

#ifndef NIF_SHOWTIP
#define NIF_SHOWTIP 0x00000080
#endif

#define Q_MSGFLT_ALLOW 1

typedef HRESULT (WINAPI *PtrShell_NotifyIconGetRect)(const Q_NOTIFYICONIDENTIFIER* identifier, RECT* iconLocation);
typedef BOOL (WINAPI *PtrChangeWindowMessageFilter)(UINT message, DWORD dwFlag);
typedef BOOL (WINAPI *PtrChangeWindowMessageFilterEx)(HWND hWnd, UINT message, DWORD action, void* pChangeFilterStruct);

class QSystemTrayIconSys : QWidget
{
public:
    QSystemTrayIconSys(QSystemTrayIcon *object);
    ~QSystemTrayIconSys();
    bool winEvent( MSG *m, long *result );
    bool trayMessage(DWORD msg);
    void setIconContents(NOTIFYICONDATA &data);
    bool showMessage(const QString &title, const QString &message, QSystemTrayIcon::MessageIcon type, uint uSecs);
    QRect findIconGeometry(const int a_iButtonID);
    void createIcon();
    HICON hIcon;
    QPoint globalPos;
    QSystemTrayIcon *q;
private:
    uint notifyIconSize;
    int maxTipLength;
    int version;
    bool ignoreNextMouseRelease;
};

static bool allowsMessages()
{
#ifndef QT_NO_SETTINGS
    QSettings settings(QLatin1String("HKEY_CURRENT_USER\\Software\\Microsoft"
                                      "\\Windows\\CurrentVersion\\Explorer\\Advanced"), QSettings::NativeFormat);
    return settings.value(QLatin1String("EnableBalloonTips"), true).toBool();
#else
    return false;
#endif
}

QSystemTrayIconSys::QSystemTrayIconSys(QSystemTrayIcon *object)
    : hIcon(0), q(object), ignoreNextMouseRelease(false)

{
    if (QSysInfo::windowsVersion() >= QSysInfo::WV_VISTA) {
        notifyIconSize = sizeof(NOTIFYICONDATA);
        version = NOTIFYICON_VERSION_4;
    } else {
        notifyIconSize = NOTIFYICONDATA_V2_SIZE;
        version = NOTIFYICON_VERSION;
    }

    maxTipLength = 128;

    // For restoring the tray icon after explorer crashes
    if (!MYWM_TASKBARCREATED) {
        MYWM_TASKBARCREATED = RegisterWindowMessage(L"TaskbarCreated");
    }

    // Allow the WM_TASKBARCREATED message through the UIPI filter on Windows Vista and higher
    static PtrChangeWindowMessageFilterEx pChangeWindowMessageFilterEx =
        (PtrChangeWindowMessageFilterEx)QSystemLibrary::resolve(QLatin1String("user32"), "ChangeWindowMessageFilterEx");

    if (pChangeWindowMessageFilterEx) {
        // Call the safer ChangeWindowMessageFilterEx API if available
        pChangeWindowMessageFilterEx(winId(), MYWM_TASKBARCREATED, Q_MSGFLT_ALLOW, 0);
    } else {
        static PtrChangeWindowMessageFilter pChangeWindowMessageFilter =
            (PtrChangeWindowMessageFilter)QSystemLibrary::resolve(QLatin1String("user32"), "ChangeWindowMessageFilter");

        if (pChangeWindowMessageFilter) {
            // Call the deprecated ChangeWindowMessageFilter API otherwise
            pChangeWindowMessageFilter(MYWM_TASKBARCREATED, Q_MSGFLT_ALLOW);
        }
    }
}

QSystemTrayIconSys::~QSystemTrayIconSys()
{
    if (hIcon)
        DestroyIcon(hIcon);
}

void QSystemTrayIconSys::setIconContents(NOTIFYICONDATA &tnd)
{
    tnd.uFlags |= NIF_MESSAGE | NIF_ICON | NIF_TIP;
    tnd.uCallbackMessage = MYWM_NOTIFYICON;
    tnd.hIcon = hIcon;
    QString tip = q->toolTip();

    if (!tip.isNull()) {
        tip = tip.left(maxTipLength - 1) + QChar();
        memcpy(tnd.szTip, tip.utf16(), qMin(tip.length() + 1, maxTipLength) * sizeof(wchar_t));
    }
}

static int iconFlag( QSystemTrayIcon::MessageIcon icon )
{
    switch (icon) {
        case QSystemTrayIcon::Information:
            return NIIF_INFO;
        case QSystemTrayIcon::Warning:
            return NIIF_WARNING;
        case QSystemTrayIcon::Critical:
            return NIIF_ERROR;
        case QSystemTrayIcon::NoIcon:
            return NIIF_NONE;
        default:
            Q_ASSERT_X(false, "QSystemTrayIconSys::showMessage", "Invalid QSystemTrayIcon::MessageIcon value");
            return NIIF_NONE;
    }
}

bool QSystemTrayIconSys::showMessage(const QString &title, const QString &message, QSystemTrayIcon::MessageIcon type, uint uSecs)
{
    NOTIFYICONDATA tnd;
    memset(&tnd, 0, notifyIconSize);

    memcpy(tnd.szInfo, message.utf16(), qMin(message.length() + 1, 256) * sizeof(wchar_t));
    memcpy(tnd.szInfoTitle, title.utf16(), qMin(title.length() + 1, 64) * sizeof(wchar_t));

    tnd.uID = q_uNOTIFYICONID;
    tnd.dwInfoFlags = iconFlag(type);
    tnd.cbSize = notifyIconSize;
    tnd.hWnd = winId();
    tnd.uTimeout = uSecs;
    tnd.uFlags = NIF_INFO | NIF_SHOWTIP;

    Q_ASSERT(testAttribute(Qt::WA_WState_Created));

    return Shell_NotifyIcon(NIM_MODIFY, &tnd);
}

bool QSystemTrayIconSys::trayMessage(DWORD msg)
{
    NOTIFYICONDATA tnd;
    memset(&tnd, 0, notifyIconSize);

    tnd.uID = q_uNOTIFYICONID;
    tnd.cbSize = notifyIconSize;
    tnd.hWnd = winId();
    tnd.uFlags = NIF_SHOWTIP;
    tnd.uVersion = version;

    Q_ASSERT(testAttribute(Qt::WA_WState_Created));

    if (msg == NIM_ADD || msg == NIM_MODIFY) {
        setIconContents(tnd);
    }

    bool success = Shell_NotifyIcon(msg, &tnd);

    if (msg == NIM_ADD)
        return success && Shell_NotifyIcon(NIM_SETVERSION, &tnd);
    else
        return success;
}

void QSystemTrayIconSys::createIcon()
{
    hIcon = 0;
    QIcon icon = q->icon();
    if (icon.isNull())
        return;

    const int iconSizeX = GetSystemMetrics(SM_CXSMICON);
    const int iconSizeY = GetSystemMetrics(SM_CYSMICON);
    QSize size = icon.actualSize(QSize(iconSizeX, iconSizeY));
    QPixmap pm = icon.pixmap(size);
    if (pm.isNull())
        return;

    hIcon = pm.toWinHICON();
}

bool QSystemTrayIconSys::winEvent( MSG *m, long *result )
{
    switch(m->message) {
    case MYWM_NOTIFYICON:
        {
            int message = 0;
            QPoint gpos;

            if (version == NOTIFYICON_VERSION_4) {
                Q_ASSERT(q_uNOTIFYICONID == HIWORD(m->lParam));
                message = LOWORD(m->lParam);
                gpos = QPoint(GET_X_LPARAM(m->wParam), GET_Y_LPARAM(m->wParam));
            } else {
                Q_ASSERT(q_uNOTIFYICONID == m->wParam);
                message = m->lParam;
                gpos = QCursor::pos();
            }

            switch (message) {
            case NIN_SELECT:
            case NIN_KEYSELECT:
                if (ignoreNextMouseRelease)
                    ignoreNextMouseRelease = false;
                else 
                    emit q->activated(QSystemTrayIcon::Trigger);
                break;

            case WM_LBUTTONDBLCLK:
                ignoreNextMouseRelease = true; // Since DBLCLICK Generates a second mouse 
                                               // release we must ignore it
                emit q->activated(QSystemTrayIcon::DoubleClick);
                break;

            case WM_CONTEXTMENU:
                if (q->contextMenu()) {
                    q->contextMenu()->popup(gpos);
                }
                emit q->activated(QSystemTrayIcon::Context);
                break;

            case NIN_BALLOONUSERCLICK:
                emit q->messageClicked();
                break;

            case WM_MBUTTONUP:
                emit q->activated(QSystemTrayIcon::MiddleClick);
                break;

            default:
                break;
            }
            break;
        }
    default:
        if (m->message == MYWM_TASKBARCREATED)
            trayMessage(NIM_ADD);
        else
            return QWidget::winEvent(m, result);
        break;
    }
    return 0;
}

void QSystemTrayIconPrivate::install_sys()
{
    Q_Q(QSystemTrayIcon);
    if (!sys) {
        sys = new QSystemTrayIconSys(q);
        sys->createIcon();
        sys->trayMessage(NIM_ADD);
    }
}

/*
* This function tries to determine the icon geometry from the tray
*
* If it fails an invalid rect is returned.
*/
QRect QSystemTrayIconSys::findIconGeometry(const int iconId)
{
    static PtrShell_NotifyIconGetRect Shell_NotifyIconGetRect =
        (PtrShell_NotifyIconGetRect)QSystemLibrary::resolve(QLatin1String("shell32"), "Shell_NotifyIconGetRect");

    if (Shell_NotifyIconGetRect) {
        Q_NOTIFYICONIDENTIFIER nid;
        memset(&nid, 0, sizeof(nid));
        nid.cbSize = sizeof(nid);
        nid.hWnd = winId();
        nid.uID = iconId;

        RECT rect;
        HRESULT hr = Shell_NotifyIconGetRect(&nid, &rect);
        if (SUCCEEDED(hr)) {
            return QRect(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
        }
    }

    QRect ret;

    TBBUTTON buttonData;
    DWORD processID = 0;
    HWND trayHandle = FindWindow(L"Shell_TrayWnd", NULL);

    //find the toolbar used in the notification area
    if (trayHandle) {
        trayHandle = FindWindowEx(trayHandle, NULL, L"TrayNotifyWnd", NULL);
        if (trayHandle) {
            HWND hwnd = FindWindowEx(trayHandle, NULL, L"SysPager", NULL);
            if (hwnd) {
                hwnd = FindWindowEx(hwnd, NULL, L"ToolbarWindow32", NULL);
                if (hwnd)
                    trayHandle = hwnd;
            }
        }
    }

    if (!trayHandle)
        return ret;

    GetWindowThreadProcessId(trayHandle, &processID);
    if (processID <= 0)
        return ret;

    HANDLE trayProcess = OpenProcess(PROCESS_VM_OPERATION | PROCESS_VM_READ, 0, processID);
    if (!trayProcess)
        return ret;

    int buttonCount = SendMessage(trayHandle, TB_BUTTONCOUNT, 0, 0);
    LPVOID data = VirtualAllocEx(trayProcess, NULL, sizeof(TBBUTTON), MEM_COMMIT, PAGE_READWRITE);

    if ( buttonCount < 1 || !data ) {
        CloseHandle(trayProcess);
        return ret;
    }

    //search for our icon among all toolbar buttons
    for (int toolbarButton = 0; toolbarButton  < buttonCount; ++toolbarButton ) {
        SIZE_T numBytes = 0;
        DWORD appData[2] = { 0, 0 };
        SendMessage(trayHandle, TB_GETBUTTON, toolbarButton , (LPARAM)data);

        if (!ReadProcessMemory(trayProcess, data, &buttonData, sizeof(TBBUTTON), &numBytes))
            continue;

        if (!ReadProcessMemory(trayProcess, (LPVOID) buttonData.dwData, appData, sizeof(appData), &numBytes))
            continue;

        int currentIconId = appData[1];
        HWND currentIconHandle = (HWND) appData[0];
        bool isHidden = buttonData.fsState & TBSTATE_HIDDEN;

        if (currentIconHandle == winId() &&
            currentIconId == iconId && !isHidden) {
            SendMessage(trayHandle, TB_GETITEMRECT, toolbarButton , (LPARAM)data);
            RECT iconRect = {0, 0};
            if(ReadProcessMemory(trayProcess, data, &iconRect, sizeof(RECT), &numBytes)) {
                MapWindowPoints(trayHandle, NULL, (LPPOINT)&iconRect, 2);
                QRect geometry(iconRect.left + 1, iconRect.top + 1,
                                iconRect.right - iconRect.left - 2,
                                iconRect.bottom - iconRect.top - 2);
                if (geometry.isValid())
                    ret = geometry;
                break;
            }
        }
    }
    VirtualFreeEx(trayProcess, data, 0, MEM_RELEASE);
    CloseHandle(trayProcess);
    return ret;
}

void QSystemTrayIconPrivate::showMessage_sys(const QString &title, const QString &message, QSystemTrayIcon::MessageIcon type, int timeOut)
{
    if (!sys || !allowsMessages())
        return;

    uint uSecs = 0;
    if ( timeOut < 0)
        uSecs = 10000; //10 sec default
    else uSecs = (int)timeOut;

    //message is limited to 255 chars + NULL
    QString messageString;
    if (message.isEmpty() && !title.isEmpty())
        messageString = QLatin1Char(' '); //ensures that the message shows when only title is set
    else
        messageString = message.left(255) + QChar();

    //title is limited to 63 chars + NULL
    QString titleString = title.left(63) + QChar();

    sys->showMessage(titleString, messageString, type, uSecs);
}

QRect QSystemTrayIconPrivate::geometry_sys() const
{
    if (!sys)
        return QRect();

    return sys->findIconGeometry(q_uNOTIFYICONID);
}

void QSystemTrayIconPrivate::remove_sys()
{
    if (!sys)
        return;

    sys->trayMessage(NIM_DELETE);
    delete sys;
    sys = 0;
}

void QSystemTrayIconPrivate::updateIcon_sys()
{
    if (!sys)
        return;

    HICON hIconToDestroy = sys->hIcon;

    sys->createIcon();
    sys->trayMessage(NIM_MODIFY);

    if (hIconToDestroy)
        DestroyIcon(hIconToDestroy);
}

void QSystemTrayIconPrivate::updateMenu_sys()
{

}

void QSystemTrayIconPrivate::updateToolTip_sys()
{
    if (!sys)
        return;

    sys->trayMessage(NIM_MODIFY);
}

bool QSystemTrayIconPrivate::isSystemTrayAvailable_sys()
{
    return true;
}

bool QSystemTrayIconPrivate::supportsMessages_sys()
{
    return allowsMessages();
}

QT_END_NAMESPACE

#endif