X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9a83f860948059b0273b5cc6d9e43fadad3ebfca..14722c43c30918cd8fbba956b50ac3426d2fe339:/src/gtk/evtloop.cpp diff --git a/src/gtk/evtloop.cpp b/src/gtk/evtloop.cpp index c54fa804d2..c58b0b1c47 100644 --- a/src/gtk/evtloop.cpp +++ b/src/gtk/evtloop.cpp @@ -6,7 +6,7 @@ // Created: 10.07.01 // RCS-ID: $Id$ // Copyright: (c) 2001 Vadim Zeitlin -// License: wxWindows licence +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -25,6 +25,7 @@ #endif #include "wx/evtloop.h" +#include "wx/evtloopsrc.h" #ifndef WX_PRECOMP #include "wx/app.h" @@ -32,6 +33,7 @@ #endif // WX_PRECOMP #include +#include // ============================================================================ // wxEventLoop implementation @@ -81,6 +83,86 @@ void wxGUIEventLoop::WakeUp() wxTheApp->WakeUpIdle(); } +// ---------------------------------------------------------------------------- +// wxEventLoop adding & removing sources +// ---------------------------------------------------------------------------- + +#if wxUSE_EVENTLOOP_SOURCE + +extern "C" +{ +static gboolean wx_on_channel_event(GIOChannel *channel, + GIOCondition condition, + gpointer data) +{ + wxUnusedVar(channel); // Unused if !wxUSE_LOG || !wxDEBUG_LEVEL + + wxLogTrace(wxTRACE_EVT_SOURCE, + "wx_on_channel_event, fd=%d, condition=%08x", + g_io_channel_unix_get_fd(channel), condition); + + wxEventLoopSourceHandler * const + handler = static_cast(data); + + if (condition & G_IO_IN || condition & G_IO_PRI) + handler->OnReadWaiting(); + if (condition & G_IO_OUT) + handler->OnWriteWaiting(); + else if (condition & G_IO_ERR || condition & G_IO_NVAL) + handler->OnExceptionWaiting(); + + // we never want to remove source here, so always return true + return TRUE; +} +} + +wxEventLoopSource * +wxGUIEventLoop::AddSourceForFD(int fd, + wxEventLoopSourceHandler *handler, + int flags) +{ + wxCHECK_MSG( fd != -1, NULL, "can't monitor invalid fd" ); + + int condition = 0; + if (flags & wxEVENT_SOURCE_INPUT) + condition |= G_IO_IN | G_IO_PRI; + if (flags & wxEVENT_SOURCE_OUTPUT) + condition |= G_IO_OUT; + if (flags & wxEVENT_SOURCE_EXCEPTION) + condition |= G_IO_ERR | G_IO_HUP | G_IO_NVAL; + + GIOChannel* channel = g_io_channel_unix_new(fd); + const unsigned sourceId = g_io_add_watch + ( + channel, + (GIOCondition)condition, + &wx_on_channel_event, + handler + ); + // it was ref'd by g_io_add_watch() so we can unref it here + g_io_channel_unref(channel); + + if ( !sourceId ) + return NULL; + + wxLogTrace(wxTRACE_EVT_SOURCE, + "Adding event loop source for fd=%d with GTK id=%u", + fd, sourceId); + + + return new wxGTKEventLoopSource(sourceId, handler, flags); +} + +wxGTKEventLoopSource::~wxGTKEventLoopSource() +{ + wxLogTrace(wxTRACE_EVT_SOURCE, + "Removing event loop source with GTK id=%u", m_sourceId); + + g_source_remove(m_sourceId); +} + +#endif // wxUSE_EVENTLOOP_SOURCE + // ---------------------------------------------------------------------------- // wxEventLoop message processing dispatching // ---------------------------------------------------------------------------- @@ -133,28 +215,31 @@ int wxGUIEventLoop::DispatchTimeout(unsigned long timeout) // YieldFor //----------------------------------------------------------------------------- -static void wxgtk_main_do_event(GdkEvent *event, wxGUIEventLoop* evtloop) +extern "C" { +static void wxgtk_main_do_event(GdkEvent* event, void* data) { // categorize the GDK event according to wxEventCategory. // See http://library.gnome.org/devel/gdk/unstable/gdk-Events.html#GdkEventType // for more info. - + // NOTE: GDK_* constants which were not present in the GDK2.0 can be tested for // only at compile-time; when running the program (compiled with a recent GDK) - // on a system with an older GDK lib we can be sure there won't be problems - // because event->type will never assume those values corresponding to + // on a system with an older GDK lib we can be sure there won't be problems + // because event->type will never assume those values corresponding to // new event types (since new event types are always added in GDK with non // conflicting values for ABI compatibility). - wxEventCategory cat = wxEVT_CATEGORY_UNKNOWN; + // Some events (currently only a single one) may be used for more than one + // category, so we need 2 variables. The second one will remain "unknown" + // in most cases. + wxEventCategory cat = wxEVT_CATEGORY_UNKNOWN, + cat2 = wxEVT_CATEGORY_UNKNOWN; switch (event->type) { case GDK_SELECTION_REQUEST: case GDK_SELECTION_NOTIFY: case GDK_SELECTION_CLEAR: -#if GTK_CHECK_VERSION(2,6,0) case GDK_OWNER_CHANGE: -#endif cat = wxEVT_CATEGORY_CLIPBOARD; break; @@ -169,6 +254,14 @@ static void wxgtk_main_do_event(GdkEvent *event, wxGUIEventLoop* evtloop) cat = wxEVT_CATEGORY_USER_INPUT; break; + case GDK_PROPERTY_NOTIFY: + // This one is special: it can be used for UI purposes but also for + // clipboard operations, so allow it in both cases (we probably could + // examine the event itself to distinguish between the two cases but + // this would be unnecessarily complicated). + cat2 = wxEVT_CATEGORY_CLIPBOARD; + // Fall through. + case GDK_PROXIMITY_IN: case GDK_PROXIMITY_OUT: @@ -176,7 +269,6 @@ static void wxgtk_main_do_event(GdkEvent *event, wxGUIEventLoop* evtloop) case GDK_ENTER_NOTIFY: case GDK_LEAVE_NOTIFY: case GDK_VISIBILITY_NOTIFY: - case GDK_PROPERTY_NOTIFY: case GDK_FOCUS_CHANGE: case GDK_CONFIGURE: @@ -186,7 +278,9 @@ static void wxgtk_main_do_event(GdkEvent *event, wxGUIEventLoop* evtloop) case GDK_DESTROY: case GDK_EXPOSE: +#ifndef __WXGTK3__ case GDK_NO_EXPOSE: +#endif case GDK_MAP: case GDK_UNMAP: @@ -210,12 +304,23 @@ static void wxgtk_main_do_event(GdkEvent *event, wxGUIEventLoop* evtloop) break; } + wxGUIEventLoop* evtloop = static_cast(data); + // is this event allowed now? - if (evtloop->IsEventAllowedInsideYield(cat)) - gtk_main_do_event(event); // process it now + if (evtloop->IsEventAllowedInsideYield(cat) || + (cat2 != wxEVT_CATEGORY_UNKNOWN && + evtloop->IsEventAllowedInsideYield(cat2))) + { + // process it now + gtk_main_do_event(event); + } else if (event->type != GDK_NOTHING) + { + // process it later (but make a copy; the caller will free the event + // pointer) evtloop->StoreGdkEventForLaterProcessing(gdk_event_copy(event)); - // process it later (but make a copy; the caller will free the event pointer) + } +} } bool wxGUIEventLoop::YieldFor(long eventsToProcess) @@ -245,7 +350,7 @@ bool wxGUIEventLoop::YieldFor(long eventsToProcess) // and then call gtk_main_do_event()! // In particular in this way we also process input from sources like // GIOChannels (this is needed for e.g. wxGUIAppTraits::WaitForChild). - gdk_event_handler_set ((GdkEventFunc)wxgtk_main_do_event, this, NULL); + gdk_event_handler_set(wxgtk_main_do_event, this, NULL); while (Pending()) // avoid false positives from our idle source gtk_main_iteration(); gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);