X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c009bf3e9fdbbbe794c0670ff1b1f9f296c91c02..ba49d2acf95d53517719c4fd9ac2ad5aaa13540b:/src/msw/evtloop.cpp diff --git a/src/msw/evtloop.cpp b/src/msw/evtloop.cpp index c260f52ea2..eb97f85bab 100644 --- a/src/msw/evtloop.cpp +++ b/src/msw/evtloop.cpp @@ -1,12 +1,12 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: msw/evtloop.cpp -// Purpose: implements wxEventLoop for MSW +// Name: src/msw/evtloop.cpp +// Purpose: implements wxEventLoop for wxMSW port // Author: Vadim Zeitlin // Modified by: // Created: 01.06.01 // RCS-ID: $Id$ // Copyright: (c) 2001 Vadim Zeitlin -// License: wxWindows licence +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -24,22 +24,21 @@ #pragma hdrstop #endif +#include "wx/evtloop.h" + #ifndef WX_PRECOMP #include "wx/window.h" #include "wx/app.h" + #include "wx/log.h" #endif //WX_PRECOMP -#include "wx/evtloop.h" - -#include "wx/tooltip.h" +#include "wx/thread.h" #include "wx/except.h" -#include "wx/ptr_scpd.h" - #include "wx/msw/private.h" +#include "wx/scopeguard.h" +#include "wx/tooltip.h" #if wxUSE_THREADS - #include "wx/thread.h" - // define the list of MSG strutures WX_DECLARE_LIST(MSG, wxMsgList); @@ -49,37 +48,12 @@ #endif // wxUSE_THREADS // ============================================================================ -// wxEventLoop implementation +// GUI wxEventLoop implementation // ============================================================================ -wxWindowMSW *wxEventLoop::ms_winCritical = NULL; - -// ---------------------------------------------------------------------------- -// ctor/dtor -// ---------------------------------------------------------------------------- - -wxEventLoop::wxEventLoop() -{ - m_shouldExit = false; - m_exitcode = 0; -} - -// ---------------------------------------------------------------------------- -// wxEventLoop message processing -// ---------------------------------------------------------------------------- - -void wxEventLoop::ProcessMessage(WXMSG *msg) -{ - // give us the chance to preprocess the message first - if ( !PreProcessMessage(msg) ) - { - // if it wasn't done, dispatch it to the corresponding window - ::TranslateMessage(msg); - ::DispatchMessage(msg); - } -} +wxWindowMSW *wxGUIEventLoop::ms_winCritical = NULL; -bool wxEventLoop::IsChildOfCriticalWindow(wxWindowMSW *win) +bool wxGUIEventLoop::IsChildOfCriticalWindow(wxWindowMSW *win) { while ( win ) { @@ -92,7 +66,7 @@ bool wxEventLoop::IsChildOfCriticalWindow(wxWindowMSW *win) return false; } -bool wxEventLoop::PreProcessMessage(WXMSG *msg) +bool wxGUIEventLoop::PreProcessMessage(WXMSG *msg) { HWND hwnd = msg->hwnd; wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd); @@ -172,16 +146,14 @@ bool wxEventLoop::PreProcessMessage(WXMSG *msg) // now try the other hooks (kbd navigation is handled here) for ( wnd = wndThis; wnd; wnd = wnd->GetParent() ) { - if (wnd != wndThis) // Skip the first since wndThis->MSWProcessMessage() was called above - { - if ( wnd->MSWProcessMessage((WXMSG *)msg) ) - return true; - } + if ( wnd->MSWProcessMessage((WXMSG *)msg) ) + return true; - // Stop at first top level window (as per comment above). - // If we don't do this, pressing ESC on a modal dialog shown as child of a modal - // dialog with wxID_CANCEL will cause the parent dialog to be closed, for example - if (wnd->IsTopLevel()) + // also stop at first top level window here, just as above because + // if we don't do this, pressing ESC on a modal dialog shown as child + // of a modal dialog with wxID_CANCEL will cause the parent dialog to + // be closed, for example + if ( wnd->IsTopLevel() ) break; } @@ -189,57 +161,22 @@ bool wxEventLoop::PreProcessMessage(WXMSG *msg) return false; } -// ---------------------------------------------------------------------------- -// wxEventLoop running and exiting -// ---------------------------------------------------------------------------- - -// ---------------------------------------------------------------------------- -// wxEventLoopManual customization -// ---------------------------------------------------------------------------- - -void wxEventLoop::OnNextIteration() -{ -#if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); -#endif // wxUSE_THREADS -} - -void wxEventLoop::WakeUp() +void wxGUIEventLoop::ProcessMessage(WXMSG *msg) { - ::PostMessage(NULL, WM_NULL, 0, 0); -} - -// ---------------------------------------------------------------------------- -// wxEventLoop message processing dispatching -// ---------------------------------------------------------------------------- - -bool wxEventLoop::Pending() const -{ - MSG msg; - return ::PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE) != 0; + // give us the chance to preprocess the message first + if ( !PreProcessMessage(msg) ) + { + // if it wasn't done, dispatch it to the corresponding window + ::TranslateMessage(msg); + ::DispatchMessage(msg); + } } -bool wxEventLoop::Dispatch() +bool wxGUIEventLoop::Dispatch() { - wxCHECK_MSG( IsRunning(), false, _T("can't call Dispatch() if not running") ); - MSG msg; - BOOL rc = ::GetMessage(&msg, (HWND) NULL, 0, 0); - - if ( rc == 0 ) - { - // got WM_QUIT - return false; - } - - if ( rc == -1 ) - { - // should never happen, but let's test for it nevertheless - wxLogLastError(wxT("GetMessage")); - - // still break from the loop + if ( !GetNextMessage(&msg) ) return false; - } #if wxUSE_THREADS wxASSERT_MSG( wxThread::IsMain(), @@ -296,3 +233,221 @@ bool wxEventLoop::Dispatch() return true; } +int wxGUIEventLoop::DispatchTimeout(unsigned long timeout) +{ + MSG msg; + int rc = GetNextMessageTimeout(&msg, timeout); + if ( rc != 1 ) + return rc; + + ProcessMessage(&msg); + + return 1; +} + +void wxGUIEventLoop::OnNextIteration() +{ +#if wxUSE_THREADS + wxMutexGuiLeaveOrEnter(); +#endif // wxUSE_THREADS +} + +void wxGUIEventLoop::WakeUp() +{ + ::PostMessage(NULL, WM_NULL, 0, 0); +} + + +// ---------------------------------------------------------------------------- +// Yield to incoming messages +// ---------------------------------------------------------------------------- + +#include +WX_DEFINE_OBJARRAY(wxMSGArray); + +bool wxGUIEventLoop::YieldFor(long eventsToProcess) +{ + // set the flag and don't forget to reset it before returning + m_isInsideYield = true; + m_eventsToProcessInsideYield = eventsToProcess; + + wxON_BLOCK_EXIT_SET(m_isInsideYield, false); + +#if wxUSE_LOG + // disable log flushing from here because a call to wxYield() shouldn't + // normally result in message boxes popping up &c + wxLog::Suspend(); + + // ensure the logs will be flashed again when we exit + wxON_BLOCK_EXIT0(wxLog::Resume); +#endif // wxUSE_LOG + + // we don't want to process WM_QUIT from here - it should be processed in + // the main event loop in order to stop it + MSG msg; + int nPaintsReceived = 0; + while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) && + msg.message != WM_QUIT ) + { +#if wxUSE_THREADS + wxMutexGuiLeaveOrEnter(); +#endif // wxUSE_THREADS + + if (msg.message == WM_PAINT) + { + // NOTE: WM_PAINTs are categorized as wxEVT_CATEGORY_UI + if ((eventsToProcess & wxEVT_CATEGORY_UI) == 0) + { + // this msg is not going to be dispatched... + // however WM_PAINT is special: until there are damaged + // windows, Windows will keep sending it forever! + if (nPaintsReceived > 10) + { + // we got 10 WM_PAINT consecutive messages... + // we must have reached the tail of the message queue: + // we're now getting _only_ WM_PAINT events and this will + // continue forever (since we don't dispatch them + // because of the user-specified eventsToProcess mask)... + // break out of this loop! + break; + } + else + nPaintsReceived++; + } + //else: we're going to dispatch it below, + // so we don't need to take any special action + } + else + { + // reset the counter of consecutive WM_PAINT messages received: + nPaintsReceived = 0; + } + + // choose a wxEventCategory for this Windows message + bool processNow; + switch (msg.message) + { +#if !defined(__WXWINCE__) + case WM_NCMOUSEMOVE: + + case WM_NCLBUTTONDOWN: + case WM_NCLBUTTONUP: + case WM_NCLBUTTONDBLCLK: + case WM_NCRBUTTONDOWN: + case WM_NCRBUTTONUP: + case WM_NCRBUTTONDBLCLK: + case WM_NCMBUTTONDOWN: + case WM_NCMBUTTONUP: + case WM_NCMBUTTONDBLCLK: +#endif + + case WM_KEYDOWN: + case WM_KEYUP: + case WM_CHAR: + case WM_DEADCHAR: + case WM_SYSKEYDOWN: + case WM_SYSKEYUP: + case WM_SYSCHAR: + case WM_SYSDEADCHAR: +#ifdef WM_UNICHAR + case WM_UNICHAR: +#endif + case WM_HOTKEY: + case WM_IME_STARTCOMPOSITION: + case WM_IME_ENDCOMPOSITION: + case WM_IME_COMPOSITION: + case WM_COMMAND: + case WM_SYSCOMMAND: + + case WM_IME_SETCONTEXT: + case WM_IME_NOTIFY: + case WM_IME_CONTROL: + case WM_IME_COMPOSITIONFULL: + case WM_IME_SELECT: + case WM_IME_CHAR: + case WM_IME_KEYDOWN: + case WM_IME_KEYUP: + +#if !defined(__WXWINCE__) + case WM_MOUSEHOVER: + case WM_MOUSELEAVE: +#endif +#ifdef WM_NCMOUSELEAVE + case WM_NCMOUSELEAVE: +#endif + + case WM_CUT: + case WM_COPY: + case WM_PASTE: + case WM_CLEAR: + case WM_UNDO: + + case WM_MOUSEMOVE: + case WM_LBUTTONDOWN: + case WM_LBUTTONUP: + case WM_LBUTTONDBLCLK: + case WM_RBUTTONDOWN: + case WM_RBUTTONUP: + case WM_RBUTTONDBLCLK: + case WM_MBUTTONDOWN: + case WM_MBUTTONUP: + case WM_MBUTTONDBLCLK: + case WM_MOUSEWHEEL: + processNow = (eventsToProcess & wxEVT_CATEGORY_USER_INPUT) != 0; + break; + + case WM_TIMER: + processNow = (eventsToProcess & wxEVT_CATEGORY_TIMER) != 0; + break; + + default: + if (msg.message < WM_USER) + { + // 0;WM_USER-1 is the range of message IDs reserved for use + // by the system. + // there are too many of these types of messages to handle + // them in this switch + processNow = (eventsToProcess & wxEVT_CATEGORY_UI) != 0; + } + else + { + // Process all the unknown messages. We must do it because + // failure to process some of them can be fatal, e.g. if we + // don't dispatch WM_APP+2 then embedded IE ActiveX + // controls don't work any more, see #14027. And there may + // be more examples like this, so dispatch all unknown + // messages immediately to be safe. + processNow = true; + } + } + + // should we process this event now? + if ( processNow ) + { + if ( !wxTheApp->Dispatch() ) + break; + } + else + { + // remove the message and store it + ::GetMessage(&msg, NULL, 0, 0); + m_arrMSG.Add(msg); + } + } + + // if there are pending events, we must process them. + if (wxTheApp) + wxTheApp->ProcessPendingEvents(); + + // put back unprocessed events in the queue + DWORD id = GetCurrentThreadId(); + for (size_t i=0; i