X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d15b1f8509deec8b0679bbd9b680aafaf8d5caac..5c87527c5a81eda63e7ccbda2f226ca02716e7da:/src/common/event.cpp diff --git a/src/common/event.cpp b/src/common/event.cpp index ae6acd1979..3a32fb3719 100644 --- a/src/common/event.cpp +++ b/src/common/event.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: event.cpp +// Name: src/common/event.cpp // Purpose: Event classes // Author: Julian Smart // Modified by: @@ -17,17 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__) -// Some older compilers (such as EMX) cannot handle -// #pragma interface/implementation correctly, iff -// #pragma implementation is used in _two_ translation -// units (as created by e.g. event.cpp compiled for -// libwx_base and event.cpp compiled for libwx_gui_core). -// So we must not use those pragmas for those compilers in -// such files. - #pragma implementation "event.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -35,28 +24,33 @@ #pragma hdrstop #endif +#include "wx/event.h" +#include "wx/evtloop.h" + #ifndef WX_PRECOMP - #include "wx/defs.h" - #include "wx/app.h" #include "wx/list.h" + #include "wx/app.h" + #include "wx/utils.h" + #include "wx/stopwatch.h" + #include "wx/module.h" #if wxUSE_GUI + #include "wx/window.h" #include "wx/control.h" - #include "wx/utils.h" #include "wx/dc.h" #include "wx/textctrl.h" + #include "wx/validate.h" #endif // wxUSE_GUI #endif -#include "wx/event.h" -#include "wx/module.h" +#include "wx/thread.h" -#if wxUSE_GUI - #include "wx/validate.h" -#if wxUSE_STOPWATCH - #include "wx/stopwatch.h" -#endif -#endif // wxUSE_GUI +#if wxUSE_BASE + #include "wx/ptr_scpd.h" + + wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr) + wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr) +#endif // wxUSE_BASE // ---------------------------------------------------------------------------- // wxWin macros @@ -65,10 +59,10 @@ #if wxUSE_BASE IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) + IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) #endif // wxUSE_BASE #if wxUSE_GUI - IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent) @@ -103,6 +97,8 @@ IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent) + IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent) + IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent) #endif // wxUSE_GUI #if wxUSE_BASE @@ -122,37 +118,40 @@ const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] = { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) }; -#ifdef __WXDEBUG__ -// Clear up event hash table contents or we can get problems -// when C++ is cleaning up the static object +// wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors +// leaked, so we need to manually clean up all event tables before checking for +// the memory leaks when using it, however this breaks re-initializing the +// library (i.e. repeated calls to wxInitialize/wxUninitialize) because the +// event tables won't be rebuilt the next time, so disable this by default +#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING + class wxEventTableEntryModule: public wxModule { -DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule) public: - wxEventTableEntryModule() {} - bool OnInit() { return true; } - void OnExit() - { - wxEventHashTable::ClearAll(); - } + wxEventTableEntryModule() { } + virtual bool OnInit() { return true; } + virtual void OnExit() { wxEventHashTable::ClearAll(); } + + DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule) }; + IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule) -#endif + +#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING // ---------------------------------------------------------------------------- // global variables // ---------------------------------------------------------------------------- -// To put pending event handlers -wxList *wxPendingEvents = (wxList *)NULL; +// List containing event handlers with pending events (each handler can occur +// at most once here) +wxList *wxHandlersWithPendingEvents = NULL; #if wxUSE_THREADS - // protects wxPendingEvents list - wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL; + // protects wxHandlersWithPendingEvents list + wxCriticalSection *wxHandlersWithPendingEventsLocker = NULL; #endif -#if !WXWIN_COMPATIBILITY_EVENT_TYPES - // common event types are defined here, other event types are defined by the // components which use them @@ -162,15 +161,12 @@ const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000; DEFINE_EVENT_TYPE(wxEVT_NULL) DEFINE_EVENT_TYPE(wxEVT_IDLE) DEFINE_EVENT_TYPE(wxEVT_SOCKET) - -#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES +DEFINE_EVENT_TYPE(wxEVT_TIMER) #endif // wxUSE_BASE #if wxUSE_GUI -#if !WXWIN_COMPATIBILITY_EVENT_TYPES - DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED) @@ -187,9 +183,8 @@ DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER) DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED) - -// Sockets and timers send events, too -DEFINE_EVENT_TYPE(wxEVT_TIMER) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED) // Mouse event types DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN) @@ -208,6 +203,12 @@ DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS) DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS) DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS) DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL) +DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN) +DEFINE_EVENT_TYPE(wxEVT_AUX1_UP) +DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK) +DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN) +DEFINE_EVENT_TYPE(wxEVT_AUX2_UP) +DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK) // Non-client mouse events DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN) @@ -262,12 +263,13 @@ DEFINE_EVENT_TYPE(wxEVT_SIZE) DEFINE_EVENT_TYPE(wxEVT_SIZING) DEFINE_EVENT_TYPE(wxEVT_MOVE) DEFINE_EVENT_TYPE(wxEVT_MOVING) +DEFINE_EVENT_TYPE(wxEVT_MOVE_START) +DEFINE_EVENT_TYPE(wxEVT_MOVE_END) DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW) DEFINE_EVENT_TYPE(wxEVT_END_SESSION) DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION) DEFINE_EVENT_TYPE(wxEVT_HIBERNATE) DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP) -DEFINE_EVENT_TYPE(wxEVT_POWER) DEFINE_EVENT_TYPE(wxEVT_ACTIVATE) DEFINE_EVENT_TYPE(wxEVT_CREATE) DEFINE_EVENT_TYPE(wxEVT_DESTROY) @@ -275,6 +277,7 @@ DEFINE_EVENT_TYPE(wxEVT_SHOW) DEFINE_EVENT_TYPE(wxEVT_ICONIZE) DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE) DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED) +DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST) DEFINE_EVENT_TYPE(wxEVT_PAINT) DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND) DEFINE_EVENT_TYPE(wxEVT_NC_PAINT) @@ -299,6 +302,11 @@ DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM) DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG) DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI) +// Clipboard events +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE) + // Generic command events // Note: a click is a higher-level event than button down/up DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK) @@ -313,12 +321,12 @@ DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER) DEFINE_EVENT_TYPE(wxEVT_HELP) DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP) -#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES - #endif // wxUSE_GUI #if wxUSE_BASE +wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL; + // ============================================================================ // implementation // ============================================================================ @@ -360,8 +368,8 @@ wxEvent::wxEvent(int theId, wxEventType commandType ) m_propagationLevel = wxEVENT_PROPAGATE_NONE; } -wxEvent::wxEvent(const wxEvent &src) - : wxObject() +wxEvent::wxEvent(const wxEvent& src) + : wxObject(src) , m_eventObject(src.m_eventObject) , m_eventType(src.m_eventType) , m_timeStamp(src.m_timeStamp) @@ -373,6 +381,22 @@ wxEvent::wxEvent(const wxEvent &src) { } +wxEvent& wxEvent::operator=(const wxEvent& src) +{ + wxObject::operator=(src); + + m_eventObject = src.m_eventObject; + m_eventType = src.m_eventType; + m_timeStamp = src.m_timeStamp; + m_id = src.m_id; + m_callbackUserData = src.m_callbackUserData; + m_propagationLevel = src.m_propagationLevel; + m_skipped = src.m_skipped; + m_isCommandEvent = src.m_isCommandEvent; + + return *this; +} + #endif // wxUSE_BASE #if wxUSE_GUI @@ -389,9 +413,6 @@ wxEvent::wxEvent(const wxEvent &src) wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId) : wxEvent(theId, commandType) -#if WXWIN_COMPATIBILITY_2_4 - , m_commandString(this) -#endif { m_clientData = (char *) NULL; m_clientObject = (wxClientData *) NULL; @@ -409,13 +430,15 @@ wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId) wxString wxCommandEvent::GetString() const { - if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject) + if (m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject) + { return m_cmdString; + } else { #if wxUSE_TEXTCTRL wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl); - if(txt) + if ( txt ) return txt->GetValue(); else #endif // wxUSE_TEXTCTRL @@ -482,25 +505,6 @@ void wxUpdateUIEvent::ResetUpdateTime() #endif } -/* - * Idle events - */ - -wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL; - -// Can we send an idle event? -bool wxIdleEvent::CanSend(wxWindow* win) -{ - // Don't update if we've switched global updating off - // and this window doesn't support updates. - if (win && - (GetMode() == wxIDLE_PROCESS_SPECIFIED && - ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0))) - return false; - - return true; -} - /* * Scroll events */ @@ -536,23 +540,31 @@ wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType, wxMouseEvent::wxMouseEvent(wxEventType commandType) { m_eventType = commandType; - m_metaDown = false; - m_altDown = false; - m_controlDown = false; - m_shiftDown = false; - m_leftDown = false; - m_rightDown = false; - m_middleDown = false; + m_x = 0; m_y = 0; + + m_leftDown = false; + m_middleDown = false; + m_rightDown = false; + m_aux1Down = false; + m_aux2Down = false; + + m_clickCount = -1; + m_wheelRotation = 0; m_wheelDelta = 0; m_linesPerAction = 0; + m_wheelAxis = 0; } void wxMouseEvent::Assign(const wxMouseEvent& event) { - m_eventType = event.m_eventType; + wxEvent::operator=(event); + + // Borland C++ 5.82 doesn't compile an explicit call to an implicitly + // defined operator=() so need to do it this way: + *static_cast(this) = event; m_x = event.m_x; m_y = event.m_y; @@ -560,15 +572,13 @@ void wxMouseEvent::Assign(const wxMouseEvent& event) m_leftDown = event.m_leftDown; m_middleDown = event.m_middleDown; m_rightDown = event.m_rightDown; - - m_controlDown = event.m_controlDown; - m_shiftDown = event.m_shiftDown; - m_altDown = event.m_altDown; - m_metaDown = event.m_metaDown; + m_aux1Down = event.m_aux1Down; + m_aux2Down = event.m_aux2Down; m_wheelRotation = event.m_wheelRotation; m_wheelDelta = event.m_wheelDelta; m_linesPerAction = event.m_linesPerAction; + m_wheelAxis = event.m_wheelAxis; } // return true if was a button dclick event @@ -581,7 +591,8 @@ bool wxMouseEvent::ButtonDClick(int but) const // fall through case wxMOUSE_BTN_ANY: - return (LeftDClick() || MiddleDClick() || RightDClick()); + return (LeftDClick() || MiddleDClick() || RightDClick() || + Aux1DClick() || Aux2DClick()); case wxMOUSE_BTN_LEFT: return LeftDClick(); @@ -591,6 +602,12 @@ bool wxMouseEvent::ButtonDClick(int but) const case wxMOUSE_BTN_RIGHT: return RightDClick(); + + case wxMOUSE_BTN_AUX1: + return Aux1DClick(); + + case wxMOUSE_BTN_AUX2: + return Aux2DClick(); } } @@ -604,7 +621,8 @@ bool wxMouseEvent::ButtonDown(int but) const // fall through case wxMOUSE_BTN_ANY: - return (LeftDown() || MiddleDown() || RightDown()); + return (LeftDown() || MiddleDown() || RightDown() || + Aux1Down() || Aux2Down()); case wxMOUSE_BTN_LEFT: return LeftDown(); @@ -614,6 +632,12 @@ bool wxMouseEvent::ButtonDown(int but) const case wxMOUSE_BTN_RIGHT: return RightDown(); + + case wxMOUSE_BTN_AUX1: + return Aux1Down(); + + case wxMOUSE_BTN_AUX2: + return Aux2Down(); } } @@ -627,7 +651,8 @@ bool wxMouseEvent::ButtonUp(int but) const // fall through case wxMOUSE_BTN_ANY: - return (LeftUp() || MiddleUp() || RightUp()); + return (LeftUp() || MiddleUp() || RightUp() || + Aux1Up() || Aux2Up()); case wxMOUSE_BTN_LEFT: return LeftUp(); @@ -637,6 +662,12 @@ bool wxMouseEvent::ButtonUp(int but) const case wxMOUSE_BTN_RIGHT: return RightUp(); + + case wxMOUSE_BTN_AUX1: + return Aux1Up(); + + case wxMOUSE_BTN_AUX2: + return Aux2Up(); } } @@ -662,6 +693,12 @@ bool wxMouseEvent::Button(int but) const case wxMOUSE_BTN_RIGHT: return RightDown() || RightUp() || RightDClick(); + + case wxMOUSE_BTN_AUX1: + return Aux1Down() || Aux1Up() || Aux1DClick(); + + case wxMOUSE_BTN_AUX2: + return Aux2Down() || Aux2Up() || Aux2DClick(); } } @@ -674,7 +711,7 @@ bool wxMouseEvent::ButtonIsDown(int but) const // fall through case wxMOUSE_BTN_ANY: - return LeftIsDown() || MiddleIsDown() || RightIsDown(); + return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down(); case wxMOUSE_BTN_LEFT: return LeftIsDown(); @@ -684,12 +721,18 @@ bool wxMouseEvent::ButtonIsDown(int but) const case wxMOUSE_BTN_RIGHT: return RightIsDown(); + + case wxMOUSE_BTN_AUX1: + return Aux1IsDown(); + + case wxMOUSE_BTN_AUX2: + return Aux2IsDown(); } } int wxMouseEvent::GetButton() const { - for ( int i = 1; i <= 3; i++ ) + for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ ) { if ( Button(i) ) { @@ -716,10 +759,6 @@ wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const wxKeyEvent::wxKeyEvent(wxEventType type) { m_eventType = type; - m_shiftDown = false; - m_controlDown = false; - m_metaDown = false; - m_altDown = false; m_keyCode = 0; m_scanCode = 0; #if wxUSE_UNICODE @@ -728,17 +767,14 @@ wxKeyEvent::wxKeyEvent(wxEventType type) } wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) - : wxEvent(evt) + : wxEvent(evt), + wxKeyboardState(evt) { m_x = evt.m_x; m_y = evt.m_y; m_keyCode = evt.m_keyCode; - m_controlDown = evt.m_controlDown; - m_shiftDown = evt.m_shiftDown; - m_altDown = evt.m_altDown; - m_metaDown = evt.m_metaDown; m_scanCode = evt.m_scanCode; m_rawCode = evt.m_rawCode; m_rawFlags = evt.m_rawFlags; @@ -748,11 +784,6 @@ wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) #endif } -long wxKeyEvent::KeyCode() const -{ - return m_keyCode; -} - wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win) { SetEventType(wxEVT_CREATE); @@ -771,6 +802,23 @@ wxChildFocusEvent::wxChildFocusEvent(wxWindow *win) SetEventObject(win); } +// ---------------------------------------------------------------------------- +// wxHelpEvent +// ---------------------------------------------------------------------------- + +/* static */ +wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin) +{ + if ( origin == Origin_Unknown ) + { + // assume that the event comes from the help button if it's not from + // keyboard and that pressing F1 always results in the help event + origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton; + } + + return origin; +} + #endif // wxUSE_GUI @@ -810,25 +858,20 @@ wxEventHashTable::~wxEventHashTable() void wxEventHashTable::Clear() { - size_t i; - for(i = 0; i < m_size; i++) + for ( size_t i = 0; i < m_size; i++ ) { EventTypeTablePointer eTTnode = m_eventTypeTable[i]; - if (eTTnode) - { - delete eTTnode; - } + delete eTTnode; } - // Necessary in order to not invoke the - // overloaded delete operator when statics are cleaned up - if (m_eventTypeTable) - delete[] m_eventTypeTable; - + delete[] m_eventTypeTable; m_eventTypeTable = NULL; + m_size = 0; } +#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING + // Clear all tables void wxEventHashTable::ClearAll() { @@ -840,6 +883,8 @@ void wxEventHashTable::ClearAll() } } +#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING + bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self) { if (m_rebuildHash) @@ -980,7 +1025,6 @@ void wxEventHashTable::GrowEventTypeTable() delete[] oldEventTypeTable; } - // ---------------------------------------------------------------------------- // wxEvtHandler // ---------------------------------------------------------------------------- @@ -996,11 +1040,7 @@ wxEvtHandler::wxEvtHandler() m_enabled = true; m_dynamicEvents = (wxList *) NULL; m_pendingEvents = (wxList *) NULL; -#if wxUSE_THREADS -# if !defined(__VISAGECPP__) - m_eventsLocker = new wxCriticalSection; -# endif -#endif + // no client data (yet) m_clientData = NULL; m_clientDataType = wxClientData_None; @@ -1017,15 +1057,26 @@ wxEvtHandler::~wxEvtHandler() if (m_dynamicEvents) { - wxList::iterator it = m_dynamicEvents->begin(), - en = m_dynamicEvents->end(); - for (;it != en; ++it) + for ( wxList::iterator it = m_dynamicEvents->begin(), + end = m_dynamicEvents->end(); + it != end; + ++it ) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)*it; -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it; -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES + + // Remove ourselves from sink destructor notifications + // (this has usually been been done, in wxTrackable destructor) + wxEvtHandler *eventSink = entry->m_eventSink; + if ( eventSink ) + { + wxEventConnectionRef * const + evtConnRef = FindRefInTrackerList(eventSink); + if ( evtConnRef ) + { + eventSink->RemoveNode(evtConnRef); + delete evtConnRef; + } + } if (entry->m_callbackUserData) delete entry->m_callbackUserData; @@ -1034,24 +1085,31 @@ wxEvtHandler::~wxEvtHandler() delete m_dynamicEvents; }; + if (m_pendingEvents) + m_pendingEvents->DeleteContents(true); delete m_pendingEvents; -#if wxUSE_THREADS -# if !defined(__VISAGECPP__) - delete m_eventsLocker; -# endif - - // Remove us from wxPendingEvents if necessary. - if(wxPendingEventsLocker) - wxENTER_CRIT_SECT(*wxPendingEventsLocker); - if ( wxPendingEvents ) + // Remove us from wxHandlersWithPendingEvents if necessary. + if ( wxHandlersWithPendingEvents ) { - // Delete all occurences of this from the list of pending events - while (wxPendingEvents->DeleteObject(this)) { } // Do nothing - } - if(wxPendingEventsLocker) - wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); +#if wxUSE_THREADS + if (wxHandlersWithPendingEventsLocker) + wxENTER_CRIT_SECT(*wxHandlersWithPendingEventsLocker); +#endif + + if ( wxHandlersWithPendingEvents->DeleteObject(this) ) + { + // check that we were present only once in the list + wxASSERT_MSG( !wxHandlersWithPendingEvents->Find(this), + "Handler occurs twice in wxHandlersWithPendingEvents list" ); + } + //else: we weren't in this list at all, it's ok + +#if wxUSE_THREADS + if (wxHandlersWithPendingEventsLocker) + wxLEAVE_CRIT_SECT(*wxHandlersWithPendingEventsLocker); #endif + } // we only delete object data, not untyped if ( m_clientDataType == wxClientData_Object ) @@ -1060,7 +1118,7 @@ wxEvtHandler::~wxEvtHandler() #if wxUSE_THREADS -bool wxEvtHandler::ProcessThreadEvent(wxEvent& event) +bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event) { // check that we are really in a child thread wxASSERT_MSG( !wxThread::IsMain(), @@ -1071,86 +1129,84 @@ bool wxEvtHandler::ProcessThreadEvent(wxEvent& event) return true; } -void wxEvtHandler::ClearEventLocker() -{ -#if !defined(__VISAGECPP__) - delete m_eventsLocker; - m_eventsLocker = NULL; -#endif -}; - #endif // wxUSE_THREADS -void wxEvtHandler::AddPendingEvent(wxEvent& event) +void wxEvtHandler::QueueEvent(wxEvent *event) { - // 1) Add event to list of pending events of this event handler + wxCHECK_RET( event, "NULL event can't be posted" ); - wxEvent *eventCopy = event.Clone(); - - // we must be able to copy the events here so the event class must - // implement Clone() properly instead of just providing a NULL stab for it - wxCHECK_RET( eventCopy, - _T("events of this type aren't supposed to be posted") ); - - wxENTER_CRIT_SECT( Lock() ); + // 1) Add this event to our list of pending events + wxENTER_CRIT_SECT( m_pendingEventsLock ); if ( !m_pendingEvents ) m_pendingEvents = new wxList; - m_pendingEvents->Append(eventCopy); - - wxLEAVE_CRIT_SECT( Lock() ); + m_pendingEvents->Append(event); // 2) Add this event handler to list of event handlers that // have pending events. - wxENTER_CRIT_SECT(*wxPendingEventsLocker); + wxENTER_CRIT_SECT(*wxHandlersWithPendingEventsLocker); + + if ( !wxHandlersWithPendingEvents ) + wxHandlersWithPendingEvents = new wxList; + if ( !wxHandlersWithPendingEvents->Find(this) ) + wxHandlersWithPendingEvents->Append(this); - if ( !wxPendingEvents ) - wxPendingEvents = new wxList; - wxPendingEvents->Append(this); + wxLEAVE_CRIT_SECT(*wxHandlersWithPendingEventsLocker); - wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); + // only release m_pendingEventsLock now because otherwise there is a race + // condition as described in the ticket #9093: we could process the event + // just added to m_pendingEvents in our ProcessPendingEvents() below before + // we had time to append this pointer to wxHandlersWithPendingEvents list; thus + // breaking the invariant that a handler should be in the list iff it has + // any pending events to process + wxLEAVE_CRIT_SECT( m_pendingEventsLock ); - // 3) Inform the system that new pending events are somwehere, + // 3) Inform the system that new pending events are somewhere, // and that these should be processed in idle time. wxWakeUpIdle(); } void wxEvtHandler::ProcessPendingEvents() { - // this method is only called by wxApp if this handler does have pending - // events - wxCHECK_RET( m_pendingEvents, - wxT("Please call wxApp::ProcessPendingEvents() instead") ); - - wxENTER_CRIT_SECT( Lock() ); - - // we leave the loop once we have processed all events that were present at - // the start of ProcessPendingEvents because otherwise we could get into - // infinite loop if the pending event handler execution resulted in another - // event being posted - size_t n = m_pendingEvents->size(); - for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst(); - node; - node = m_pendingEvents->GetFirst() ) - { - wxEvent *event = (wxEvent *)node->GetData(); - - m_pendingEvents->Erase(node); + wxENTER_CRIT_SECT( m_pendingEventsLock ); - wxLEAVE_CRIT_SECT( Lock() ); + // this method is only called by wxApp if this handler does have + // pending events + wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(), + "should have pending events if called" ); - ProcessEvent(*event); - delete event; + wxList::compatibility_iterator node = m_pendingEvents->GetFirst(); + wxEventPtr event(static_cast(node->GetData())); - wxENTER_CRIT_SECT( Lock() ); + // it's important we remove event from list before processing it, else a + // nested event loop, for example from a modal dialog, might process the + // same event again. + m_pendingEvents->Erase(node); - if ( !--n ) - break; + // if there are no more pending events left, we don't need to stay in this + // list + if ( m_pendingEvents->IsEmpty() ) + { +#if wxUSE_THREADS + if (wxHandlersWithPendingEventsLocker) + wxENTER_CRIT_SECT(*wxHandlersWithPendingEventsLocker); +#endif + wxHandlersWithPendingEvents->DeleteObject(this); +#if wxUSE_THREADS + if (wxHandlersWithPendingEventsLocker) + wxLEAVE_CRIT_SECT(*wxHandlersWithPendingEventsLocker); +#endif } - wxLEAVE_CRIT_SECT( Lock() ); + wxLEAVE_CRIT_SECT( m_pendingEventsLock ); + + ProcessEvent(*event); + + // careful: this object could have been deleted by the event handler + // executed by the above ProcessEvent() call, so we can't access any fields + // of this object any more } /* @@ -1200,6 +1256,13 @@ wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry, bool wxEvtHandler::TryParent(wxEvent& event) { + if ( GetNextHandler() ) + { + // the next handler will pass it to wxTheApp if it doesn't process it, + // so return from here to avoid doing it again + return GetNextHandler()->TryParent(event); + } + if ( wxTheApp && (this != wxTheApp) ) { // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always @@ -1231,6 +1294,16 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event) //else: proceed normally } + if ( ProcessEventHere(event) ) + return true; + + // propagate the event upwards the window chain and/or to the application + // object if it wasn't processed at this level + return TryParent(event); +} + +bool wxEvtHandler::ProcessEventHere(wxEvent& event) +{ // An event handler can be enabled or disabled if ( GetEvtHandlerEnabled() ) { @@ -1249,15 +1322,47 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event) } // Try going down the event handler chain - if ( GetNextHandler() ) + if ( GetNextHandler() && GetNextHandler()->ProcessEventHere(event) ) + return true; + + // We don't have a handler for this event. + return false; +} + +bool wxEvtHandler::SafelyProcessEvent(wxEvent& event) +{ +#if wxUSE_EXCEPTIONS + try { - if ( GetNextHandler()->ProcessEvent(event) ) - return true; +#endif + return ProcessEvent(event); +#if wxUSE_EXCEPTIONS } + catch ( ... ) + { + wxEventLoopBase *loop = wxEventLoopBase::GetActive(); + try + { + if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() ) + { + if ( loop ) + loop->Exit(); + } + //else: continue running current event loop - // Finally propagate the event upwards the window chain and/or to the - // application object as necessary - return TryParent(event); + return false; + } + catch ( ... ) + { + // OnExceptionInMainLoop() threw, possibly rethrowing the same + // exception again: very good, but we still need Exit() to + // be called + if ( loop ) + loop->Exit(); + throw; + } + } +#endif // wxUSE_EXCEPTIONS } @@ -1278,28 +1383,29 @@ bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event) } void wxEvtHandler::Connect( int id, int lastId, - int eventType, + wxEventType eventType, wxObjectEventFunction func, wxObject *userData, wxEvtHandler* eventSink ) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = new wxEventTableEntry; - entry->m_eventType = eventType; - entry->m_id = id; - entry->m_lastId = lastId; - entry->m_fn = func; - entry->m_callbackUserData = userData; -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES wxDynamicEventTableEntry *entry = new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink); -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES if (!m_dynamicEvents) m_dynamicEvents = new wxList; // Insert at the front of the list so most recent additions are found first m_dynamicEvents->Insert( (wxObject*) entry ); + + // Make sure we get to know when a sink is destroyed + if ( eventSink && eventSink != this ) + { + wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink); + if ( evtConnRef ) + evtConnRef->IncRef( ); + else + new wxEventConnectionRef(this, eventSink); + } } bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, @@ -1310,14 +1416,18 @@ bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, if (!m_dynamicEvents) return false; + // Remove connection from tracker node (wxEventConnectionRef) + if ( eventSink && eventSink != this ) + { + wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink); + if ( evtConnRef ) + evtConnRef->DecRef(); + } + wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); while (node) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES - wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); if ((entry->m_id == id) && ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) && @@ -1345,32 +1455,23 @@ bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event ) wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); while (node) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES + + // get next node before (maybe) calling the event handler as it could + // call Disconnect() invalidating the current node + node = node->GetNext(); if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0)) { - wxEvtHandler *handler = -#if !WXWIN_COMPATIBILITY_EVENT_TYPES - entry->m_eventSink ? entry->m_eventSink - : -#endif - this; - + wxEvtHandler *handler = entry->m_eventSink ? entry->m_eventSink + : this; if ( ProcessEventIfMatches(*entry, handler, event) ) - { return true; - } } - - node = node->GetNext(); } return false; -}; +} void wxEvtHandler::DoSetClientObject( wxClientData *data ) { @@ -1413,6 +1514,46 @@ void *wxEvtHandler::DoGetClientData() const return m_clientData; } +// A helper to find an wxEventConnectionRef object +wxEventConnectionRef * +wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink) +{ + for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt ) + { + // we only want wxEventConnectionRef nodes here + wxEventConnectionRef *evtConnRef = node->ToEventConnection(); + if ( evtConnRef && evtConnRef->m_src == this ) + { + wxASSERT( evtConnRef->m_sink==eventSink ); + return evtConnRef; + } + } + + return NULL; +} + +void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink ) +{ + wxASSERT(m_dynamicEvents); + + // remove all connections with this sink + wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt; + while (node) + { + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); + node_nxt = node->GetNext(); + + if ( entry->m_eventSink==sink ) + { + if (entry->m_callbackUserData) + delete entry->m_callbackUserData; + m_dynamicEvents->Erase( node ); + delete entry; + } + node = node_nxt; + } +} + #endif // wxUSE_BASE #if wxUSE_GUI @@ -1440,4 +1581,38 @@ wxWindow* wxFindFocusDescendant(wxWindow* ancestor) return focusWin; } +// ---------------------------------------------------------------------------- +// wxEventBlocker +// ---------------------------------------------------------------------------- + +wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type) +{ + wxCHECK_RET(win, wxT("Null window given to wxEventBlocker")); + + m_window = win; + + Block(type); + m_window->PushEventHandler(this); +} + +wxEventBlocker::~wxEventBlocker() +{ + wxEvtHandler *popped = m_window->PopEventHandler(false); + wxCHECK_RET(popped == this, + wxT("Don't push other event handlers into a window managed by wxEventBlocker!")); +} + +bool wxEventBlocker::ProcessEvent(wxEvent& event) +{ + // should this event be blocked? + for ( size_t i = 0; i < m_eventsToBlock.size(); i++ ) + { + wxEventType t = (wxEventType)m_eventsToBlock[i]; + if ( t == wxEVT_ANY || t == event.GetEventType() ) + return true; // yes, it should: mark this event as processed + } + + return false; +} + #endif // wxUSE_GUI