| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 Ivan Vizir <define-true-false@yandex.com> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtWinExtras module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
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| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qwineventfilter_p.h" |
| #include "qwinfunctions.h" |
| #include "qwinevent.h" |
| #include <QtGui/qguiapplication.h> |
| #include <QtGui/qwindow.h> |
| |
| #ifndef WM_DWMCOLORIZATIONCOLORCHANGED |
| # define WM_DWMCOLORIZATIONCOLORCHANGED 0x0320 |
| #endif |
| |
| #ifndef WM_DWMCOMPOSITIONCHANGED |
| # define WM_DWMCOMPOSITIONCHANGED 0x031E |
| #endif |
| |
| QWinEventFilter *QWinEventFilter::instance = nullptr; |
| |
| QWinEventFilter::QWinEventFilter() : |
| tbButtonCreatedMsgId(RegisterWindowMessageW(L"TaskbarButtonCreated")) |
| { |
| } |
| |
| QWinEventFilter::~QWinEventFilter() |
| { |
| instance = nullptr; |
| } |
| |
| #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) |
| bool QWinEventFilter::nativeEventFilter(const QByteArray &, void *message, qintptr *result) |
| #else |
| bool QWinEventFilter::nativeEventFilter(const QByteArray &, void *message, long *result) |
| #endif |
| { |
| MSG *msg = static_cast<MSG *>(message); |
| bool filterOut = false; |
| |
| QEvent *event = nullptr; |
| QWindow *window = nullptr; |
| switch (msg->message) { |
| case WM_DWMCOLORIZATIONCOLORCHANGED : |
| event = new QWinColorizationChangeEvent(QRgb(msg->wParam), msg->lParam); |
| break; |
| case WM_DWMCOMPOSITIONCHANGED : |
| event = new QWinCompositionChangeEvent(QtWin::isCompositionEnabled()); |
| break; |
| case WM_THEMECHANGED : |
| event = new QWinEvent(QWinEvent::ThemeChange); |
| break; |
| default : |
| if (tbButtonCreatedMsgId == msg->message) { |
| event = new QWinEvent(QWinEvent::TaskbarButtonCreated); |
| filterOut = true; |
| } |
| break; |
| } |
| |
| if (event) { |
| window = findWindow(msg->hwnd); |
| if (window) |
| QCoreApplication::sendEvent(window, event); |
| delete event; |
| } |
| |
| if (filterOut && result) { |
| *result = 0; |
| } |
| |
| return filterOut; |
| } |
| |
| void QWinEventFilter::setup() |
| { |
| if (!instance) { |
| instance = new QWinEventFilter; |
| qApp->installNativeEventFilter(instance); |
| } |
| } |
| |
| QWindow *QWinEventFilter::findWindow(HWND handle) |
| { |
| const WId wid = reinterpret_cast<WId>(handle); |
| const auto topLevels = QGuiApplication::topLevelWindows(); |
| for (QWindow *topLevel : topLevels) { |
| if (topLevel->handle() && topLevel->winId() == wid) |
| return topLevel; |
| } |
| return nullptr; |
| } |