/* * tkMacOSXEvent.c -- * * This file contains the basic Mac OS X Event handling routines. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * Copyright 2001, Apple Computer, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tkMacOSXEvent.c,v 1.3.2.6 2006/04/11 10:22:57 das Exp $ */ #include "tkMacOSXInt.h" #include "tkMacOSXEvent.h" #include "tkMacOSXDebug.h" /* *---------------------------------------------------------------------- * * TkMacOSXFlushWindows -- * * This routine flushes all the Carbon windows of the application. It * is called by the setup procedure for the Tcl/Carbon event source. * * Results: * None. * * Side effects: * Flushes all Carbon windows * *---------------------------------------------------------------------- */ void TkMacOSXFlushWindows () { WindowRef wRef = GetWindowList(); while (wRef) { CGrafPtr portPtr = GetWindowPort(wRef); if (QDIsPortBuffered(portPtr)) { QDFlushPortBuffer(portPtr, NULL); } wRef = GetNextWindow(wRef); } } /* *---------------------------------------------------------------------- * * TkMacOSXProcessEvent -- * * This dispatches a filtered Carbon event to the appropriate handler * * Note on MacEventStatus.stopProcessing: Please be conservative in the * individual handlers and don't assume the event is fully handled * unless you *really* need to ensure that other handlers don't see the * event anymore. Some OS manager or library might be interested in * events even after they are already handled on the Tk level. * * Results: * 0 on success * -1 on failure * * Side effects: * Converts a Carbon event to a Tk event * *---------------------------------------------------------------------- */ int TkMacOSXProcessEvent(TkMacOSXEvent * eventPtr, MacEventStatus * statusPtr) { switch (eventPtr->eClass) { case kEventClassMouse: TkMacOSXProcessMouseEvent(eventPtr, statusPtr); break; case kEventClassWindow: TkMacOSXProcessWindowEvent(eventPtr, statusPtr); break; case kEventClassKeyboard: TkMacOSXProcessKeyboardEvent(eventPtr, statusPtr); break; case kEventClassApplication: TkMacOSXProcessApplicationEvent(eventPtr, statusPtr); break; case kEventClassMenu: TkMacOSXProcessMenuEvent(eventPtr, statusPtr); break; case kEventClassCommand: TkMacOSXProcessCommandEvent(eventPtr, statusPtr); break; default: #ifdef TK_MAC_DEBUG { char buf [256]; fprintf(stderr, "Unrecognised event : %s\n", CarbonEventToAscii(eventPtr->eventRef, buf)); } #endif break; } return 0; } /* *---------------------------------------------------------------------- * * TkMacOSXProcessMenuEvent -- * * This routine processes the event in eventPtr, and * generates the appropriate Tk events from it. * * Results: * True if event(s) are generated - false otherwise. * * Side effects: * Additional events may be place on the Tk event queue. * *---------------------------------------------------------------------- */ int TkMacOSXProcessMenuEvent(TkMacOSXEvent *eventPtr, MacEventStatus * statusPtr) { int menuContext; OSStatus status; switch (eventPtr->eKind) { case kEventMenuBeginTracking: case kEventMenuEndTracking: break; default: return 0; break; } status = GetEventParameter(eventPtr->eventRef, kEventParamMenuContext, typeUInt32, NULL, sizeof(menuContext), NULL, &menuContext); if (status == noErr && (menuContext & kMenuContextMenuBar)) { static int oldMode = TCL_SERVICE_ALL; if (eventPtr->eKind == kEventMenuBeginTracking) { oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL); TkMacOSXClearMenubarActive(); /* * Handle -postcommand */ TkMacOSXPreprocessMenu(); } else { Tcl_SetServiceMode(oldMode); } } return 0; } /* *---------------------------------------------------------------------- * * TkMacOSXProcessCommandEvent -- * * This routine processes the event in eventPtr, and * generates the appropriate Tk events from it. * * Results: * True if event(s) are generated - false otherwise. * * Side effects: * Additional events may be place on the Tk event queue. * *---------------------------------------------------------------------- */ int TkMacOSXProcessCommandEvent(TkMacOSXEvent *eventPtr, MacEventStatus * statusPtr) { HICommand command; int menuContext; OSStatus status; switch (eventPtr->eKind) { case kEventCommandProcess: case kEventCommandUpdateStatus: break; default: return 0; break; } status = GetEventParameter(eventPtr->eventRef, kEventParamDirectObject, typeHICommand, NULL, sizeof(command), NULL, &command); if (status == noErr && (command.attributes & kHICommandFromMenu)) { if (eventPtr->eKind == kEventCommandProcess) { status = GetEventParameter(eventPtr->eventRef, kEventParamMenuContext, typeUInt32, NULL, sizeof(menuContext), NULL, &menuContext); if (status == noErr && (menuContext & kMenuContextMenuBar) && (menuContext & kMenuContextMenuBarTracking)) { TkMacOSXHandleMenuSelect(GetMenuID(command.menu.menuRef), command.menu.menuItemIndex, GetCurrentEventKeyModifiers() & optionKey); return 1; } } else { Tcl_CmdInfo dummy; if (command.commandID == kHICommandPreferences && eventPtr->interp) { if (Tcl_GetCommandInfo(eventPtr->interp, "::tk::mac::ShowPreferences", &dummy)) { if (!IsMenuItemEnabled(command.menu.menuRef, command.menu.menuItemIndex)) { EnableMenuItem(command.menu.menuRef, command.menu.menuItemIndex); } } else { if (IsMenuItemEnabled(command.menu.menuRef, command.menu.menuItemIndex)) { DisableMenuItem(command.menu.menuRef, command.menu.menuItemIndex); } } return 1; } } } return 0; } /* *---------------------------------------------------------------------- * * TkMacOSXReceiveAndProcessEvent -- * * This receives a carbon event and converts it to a Tk event * * Results: * 0 on success * Mac OS error number on failure * * Side effects: * This receives the next Carbon event and converts it to the * appropriate Tk event * *---------------------------------------------------------------------- */ OSStatus TkMacOSXReceiveAndProcessEvent() { static EventTargetRef targetRef = NULL; EventRef eventRef; OSStatus err; /* * This is a poll, since we have already counted the events coming * into this routine, and are guaranteed to have one waiting. */ err = ReceiveNextEvent(0, NULL, kEventDurationNoWait, true, &eventRef); if (err == noErr) { if (!targetRef) { targetRef = GetEventDispatcherTarget(); } TkMacOSXStartTclEventLoopCarbonTimer(); err = SendEventToEventTarget(eventRef,targetRef); TkMacOSXStopTclEventLoopCarbonTimer(); #ifdef TK_MAC_DEBUG if (err != noErr && err != eventLoopTimedOutErr && err != eventNotHandledErr ) { char buf [256]; fprintf(stderr, "RCNE SendEventToEventTarget (%s) failed, %d\n", CarbonEventToAscii(eventRef, buf), (int)err); } #endif ReleaseEvent(eventRef); } return err; }