From e3bbfe00d1f71ba21889eec438e9438c0ee35c0a Mon Sep 17 00:00:00 2001 From: Friedemann Kleint Date: Fri, 11 May 2012 11:34:28 +0200 Subject: Windows: Compress Window Activation events. If the next active window is already known at the time a focus out is received, pass it to QWindowSystemInterface. Fixes a test and Qt Creator's locator bar. Task-number: QTBUG-24186 Task-number: QTCREATORBUG-1 Change-Id: I0aed4c386c08ed182555c95640e1637c5b67f5ce Reviewed-by: Miikka Heikkinen Reviewed-by: Friedemann Kleint --- src/plugins/platforms/windows/qwindowscontext.cpp | 33 ++++++++++++++++++++--- 1 file changed, 29 insertions(+), 4 deletions(-) (limited to 'src/plugins/platforms/windows/qwindowscontext.cpp') diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp index f44ce38c73..0a1ca138ad 100644 --- a/src/plugins/platforms/windows/qwindowscontext.cpp +++ b/src/plugins/platforms/windows/qwindowscontext.cpp @@ -259,6 +259,7 @@ struct QWindowsContextPrivate { const HRESULT m_oleInitializeResult; const QByteArray m_eventType; EventFilter m_eventFilters[EventFilterTypeCount]; + QWindow *m_lastActiveWindow; }; QWindowsContextPrivate::QWindowsContextPrivate() : @@ -266,7 +267,8 @@ QWindowsContextPrivate::QWindowsContextPrivate() : m_displayContext(GetDC(0)), m_defaultDPI(GetDeviceCaps(m_displayContext,LOGPIXELSY)), m_oleInitializeResult(OleInitialize(NULL)), - m_eventType(QByteArrayLiteral("windows_generic_MSG")) + m_eventType(QByteArrayLiteral("windows_generic_MSG")), + m_lastActiveWindow(0) { #ifndef Q_OS_WINCE QWindowsContext::user32dll.init(); @@ -819,10 +821,8 @@ bool QWindowsContext::windowsProc(HWND hwnd, UINT message, case QtWindows::TouchEvent: return d->m_mouseHandler.translateTouchEvent(platformWindow->window(), hwnd, et, msg, result); case QtWindows::FocusInEvent: // see QWindowsWindow::requestActivateWindow(). - QWindowSystemInterface::handleWindowActivated(platformWindow->window()); - return true; case QtWindows::FocusOutEvent: - QWindowSystemInterface::handleWindowActivated(0); + handleFocusEvent(et, platformWindow); return true; case QtWindows::ShowEvent: platformWindow->handleShown(); @@ -850,6 +850,31 @@ bool QWindowsContext::windowsProc(HWND hwnd, UINT message, return false; } +/* Compress activation events. If the next focus window is already known + * at the time the current one receives focus-out, pass that to + * QWindowSystemInterface instead of sending 0 and ignore its consecutive + * focus-in event. + * This helps applications that do handling in focus-out events. */ +void QWindowsContext::handleFocusEvent(QtWindows::WindowsEventType et, + QWindowsWindow *platformWindow) +{ + QWindow *nextActiveWindow = 0; + if (et == QtWindows::FocusInEvent) { + nextActiveWindow = platformWindow->window(); + } else { + // Focus out: Is the next window known and different + // from the receiving the focus out. + if (const HWND nextActiveHwnd = GetActiveWindow()) + if (QWindowsWindow *nextActivePlatformWindow = findPlatformWindow(nextActiveHwnd)) + if (nextActivePlatformWindow != platformWindow) + nextActiveWindow = nextActivePlatformWindow->window(); + } + if (nextActiveWindow != d->m_lastActiveWindow) { + d->m_lastActiveWindow = nextActiveWindow; + QWindowSystemInterface::handleWindowActivated(nextActiveWindow); + } +} + /*! \brief Windows functions for actual windows. -- cgit v1.2.3