X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b2b9de21cbc6f61663a9dee2ab086df671f581d6..ce7208d49d5ce2ca1dc0b3b83f14f1d04f29c4bf:/src/common/event.cpp?ds=sidebyside

diff --git a/src/common/event.cpp b/src/common/event.cpp
index 5c40ecf1c8..df764235ac 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 +24,23 @@
     #pragma hdrstop
 #endif
 
+#include "wx/event.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/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"
-
-#if wxUSE_GUI
-    #include "wx/validate.h"
-#if wxUSE_STOPWATCH
-    #include "wx/stopwatch.h"
-#endif
-#endif // wxUSE_GUI
-
 // ----------------------------------------------------------------------------
 // wxWin macros
 // ----------------------------------------------------------------------------
@@ -102,6 +86,8 @@
     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
@@ -120,7 +106,7 @@ wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 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
@@ -137,7 +123,7 @@ public:
 };
 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 #endif
-    
+
 // ----------------------------------------------------------------------------
 // global variables
 // ----------------------------------------------------------------------------
@@ -244,7 +230,7 @@ DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
-DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
+DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 
 // Scroll events from wxWindow
 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
@@ -264,6 +250,7 @@ DEFINE_EVENT_TYPE(wxEVT_MOVING)
 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)
@@ -273,6 +260,7 @@ 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)
@@ -297,6 +285,11 @@ 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)
@@ -338,7 +331,7 @@ int wxNewEventType()
 // ----------------------------------------------------------------------------
 
 /*
- * General wxWindows events, covering
+ * General wxWidgets events, covering
  * all interesting things that might happen (button clicking, resizing,
  * setting text in widgets, etc.).
  *
@@ -380,8 +373,16 @@ wxEvent::wxEvent(const wxEvent &src)
  *
  */
 
+#ifdef __VISUALC__
+    // 'this' : used in base member initializer list (for m_commandString)
+    #pragma warning(disable:4355)
+#endif
+
 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;
@@ -393,6 +394,26 @@ wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 }
 
+#ifdef __VISUALC__
+    #pragma warning(default:4355)
+#endif
+
+wxString wxCommandEvent::GetString() const
+{
+    if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
+        return m_cmdString;
+    else
+    {
+#if wxUSE_TEXTCTRL
+        wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
+        if(txt)
+            return txt->GetValue();
+        else
+#endif // wxUSE_TEXTCTRL
+            return m_cmdString;
+    }
+}
+
 /*
  * UI update events
  */
@@ -417,23 +438,23 @@ bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 
     if (sm_updateInterval == -1)
         return false;
-    else if (sm_updateInterval == 0)
+
+    if (sm_updateInterval == 0)
         return true;
-    else
-    {
+
 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
-        wxLongLong now = wxGetLocalTimeMillis();
-        if (now > (sm_lastUpdate + sm_updateInterval))
-        {
-            return true;
-        }
-#else
-        // If we don't have wxStopWatch or wxLongLong, we
-        // should err on the safe side and update now anyway.
+    wxLongLong now = wxGetLocalTimeMillis();
+    if (now > (sm_lastUpdate + sm_updateInterval))
+    {
         return true;
-#endif
     }
+
     return false;
+#else
+    // If we don't have wxStopWatch or wxLongLong, we
+    // should err on the safe side and update now anyway.
+    return true;
+#endif
 }
 
 // Reset the update time to provide a delay until the next
@@ -718,10 +739,12 @@ wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 #endif
 }
 
+#if WXWIN_COMPATIBILITY_2_6
 long wxKeyEvent::KeyCode() const
 {
     return m_keyCode;
 }
+#endif // WXWIN_COMPATIBILITY_2_6
 
 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 {
@@ -741,6 +764,23 @@ 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
 
 
@@ -759,7 +799,7 @@ wxEventHashTable::wxEventHashTable(const wxEventTable &table)
                   m_rebuildHash(true)
 {
     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
-    
+
     m_next = sm_first;
     if (m_next)
         m_next->m_previous = this;
@@ -774,7 +814,7 @@ wxEventHashTable::~wxEventHashTable()
         m_previous->m_next = m_next;
     if (sm_first == this)
         sm_first = m_next;
-    
+
     Clear();
 }
 
@@ -817,9 +857,9 @@ bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
         InitHashTable();
         m_rebuildHash = false;
     }
-    
+
     if (!m_eventTypeTable)
-        return FALSE;
+        return false;
 
     // Find all entries for the given event type.
     wxEventType eventType = event.GetEventType();
@@ -881,7 +921,7 @@ void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
     // This might happen 'accidentally' as the app is exiting
     if (!m_eventTypeTable)
         return;
-    
+
     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
     EventTypeTablePointer  eTTnode = *peTTnode;
 
@@ -971,6 +1011,10 @@ wxEvtHandler::wxEvtHandler()
     m_eventsLocker = new wxCriticalSection;
 #  endif
 #endif
+    // reentrace not allowed by default
+    m_reentranceAllowed = false;
+    m_eventHandlingInProgress = false;
+    
     // no client data (yet)
     m_clientData = NULL;
     m_clientDataType = wxClientData_None;
@@ -1004,6 +1048,8 @@ wxEvtHandler::~wxEvtHandler()
         delete m_dynamicEvents;
     };
 
+    if (m_pendingEvents)
+        m_pendingEvents->DeleteContents(true);
     delete m_pendingEvents;
 
 #if wxUSE_THREADS
@@ -1014,8 +1060,10 @@ wxEvtHandler::~wxEvtHandler()
     // Remove us from wxPendingEvents if necessary.
     if(wxPendingEventsLocker)
         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
-    if ( wxPendingEvents ) {
-        wxPendingEvents->DeleteObject(this);
+    if ( wxPendingEvents )
+    {
+        // Delete all occurences of this from the list of pending events
+        while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
     }
     if(wxPendingEventsLocker)
         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
@@ -1045,7 +1093,7 @@ void wxEvtHandler::ClearEventLocker()
     delete m_eventsLocker;
     m_eventsLocker = NULL;
 #endif
-};
+}
 
 #endif // wxUSE_THREADS
 
@@ -1060,22 +1108,14 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event)
     wxCHECK_RET( eventCopy,
                  _T("events of this type aren't supposed to be posted") );
 
-#if defined(__VISAGECPP__)
-    wxENTER_CRIT_SECT( m_eventsLocker);
-#else
-    wxENTER_CRIT_SECT( *m_eventsLocker);
-#endif
+    wxENTER_CRIT_SECT( Lock() );
 
     if ( !m_pendingEvents )
       m_pendingEvents = new wxList;
 
     m_pendingEvents->Append(eventCopy);
 
-#if defined(__VISAGECPP__)
-    wxLEAVE_CRIT_SECT( m_eventsLocker);
-#else
-    wxLEAVE_CRIT_SECT( *m_eventsLocker);
-#endif
+    wxLEAVE_CRIT_SECT( Lock() );
 
     // 2) Add this event handler to list of event handlers that
     //    have pending events.
@@ -1088,48 +1128,56 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event)
 
     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
 
-    // 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()
 {
-#if defined(__VISAGECPP__)
-    wxENTER_CRIT_SECT( m_eventsLocker);
-#else
-    wxENTER_CRIT_SECT( *m_eventsLocker);
-#endif
-
-    wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
-    while ( node )
+    // this method is only called by wxApp if this handler does have
+    // pending events
+    wxCHECK_RET( m_pendingEvents,
+                 wxT("Please call wxApp::ProcessPendingEvents() instead") );
+    
+    // eventhandling is now in progess
+    m_eventHandlingInProgress = true;
+
+    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();
+
+        // It's importan 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);
 
-        // In ProcessEvent, new events might get added and
-        // we can safely leave the crtical section here.
-#if defined(__VISAGECPP__)
-        wxLEAVE_CRIT_SECT( m_eventsLocker);
-#else
-        wxLEAVE_CRIT_SECT( *m_eventsLocker);
-#endif
+        wxLEAVE_CRIT_SECT( Lock() );
+
         ProcessEvent(*event);
+
         delete event;
-#if defined(__VISAGECPP__)
-        wxENTER_CRIT_SECT( m_eventsLocker);
-#else
-        wxENTER_CRIT_SECT( *m_eventsLocker);
-#endif
 
-        node = m_pendingEvents->GetFirst();
+        wxENTER_CRIT_SECT( Lock() );
+
+        if ( --n == 0 )
+            break;
     }
 
-#if defined(__VISAGECPP__)
-    wxLEAVE_CRIT_SECT( m_eventsLocker);
-#else
-    wxLEAVE_CRIT_SECT( *m_eventsLocker);
-#endif
+    wxLEAVE_CRIT_SECT( Lock() );
+    
+    // eventhandling no longer in progess
+    m_eventHandlingInProgress = false;
 }
 
 /*
@@ -1147,9 +1195,9 @@ wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
     // the event table (meaning "any") or the event id matches the id
     // specified in the event table either exactly or by falling into
     // range between first and last
-    if ((tableId1 == -1) ||
-        (tableId2 == -1 && tableId1 == event.GetId()) ||
-        (tableId2 != -1 &&
+    if ((tableId1 == wxID_ANY) ||
+        (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
+        (tableId2 != wxID_ANY &&
          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
     {
         event.Skip(false);
@@ -1299,7 +1347,7 @@ bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
 
         if ((entry->m_id == id) &&
-            ((entry->m_lastId == lastId) || (lastId == -1)) &&
+            ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
@@ -1330,7 +1378,11 @@ bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
 
-        if ((event.m_eventType == entry->m_eventType) && (entry->m_fn != 0))
+        // 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
@@ -1344,12 +1396,10 @@ bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
                 return true;
             }
         }
-
-        node = node->GetNext();
     }
 
     return false;
-};
+}
 
 void wxEvtHandler::DoSetClientObject( wxClientData *data )
 {