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ckEvent.c
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ckEvent.c
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/*
* ckEvent.c --
*
* This file provides basic event-managing facilities,
* whereby procedure callbacks may be attached to
* certain events.
*
* Copyright (c) 1990-1994 The Regents of the University of California.
* Copyright (c) 1994-1995 Sun Microsystems, Inc.
* Copyright (c) 1995-2002 Christian Werner
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "ckPort.h"
#include "ck.h"
#ifdef HAVE_GPM
#include "gpm.h"
#endif
#if (TCL_MAJOR_VERSION >= 8)
typedef struct {
Tcl_Event header; /* Standard event header. */
CkEvent event; /* Ck event data. */
CkMainInfo *mainPtr; /* Pointer to Ck main info. */
} CkQEvt;
static int Ck_HandleQEvent _ANSI_ARGS_((Tcl_Event *evPtr, int flags));
#endif
/*
* There's a potential problem if a handler is deleted while it's
* current (i.e. its procedure is executing), since Ck_HandleEvent
* will need to read the handler's "nextPtr" field when the procedure
* returns. To handle this problem, structures of the type below
* indicate the next handler to be processed for any (recursively
* nested) dispatches in progress. The nextHandler fields get
* updated if the handlers pointed to are deleted. Ck_HandleEvent
* also needs to know if the entire window gets deleted; the winPtr
* field is set to zero if that particular window gets deleted.
*/
typedef struct InProgress {
CkEvent *eventPtr; /* Event currently being handled. */
CkWindow *winPtr; /* Window for event. Gets set to NULL if
* window is deleted while event is being
* handled. */
CkEventHandler *nextHandler; /* Next handler in search. */
struct InProgress *nextPtr; /* Next higher nested search. */
} InProgress;
static InProgress *pendingPtr = NULL;
/* Topmost search in progress, or
* NULL if none. */
/*
* For each call to Ck_CreateGenericHandler, an instance of the following
* structure will be created. All of the active handlers are linked into a
* list.
*/
typedef struct GenericHandler {
Ck_GenericProc *proc; /* Procedure to dispatch on all events. */
ClientData clientData; /* Client data to pass to procedure. */
int deleteFlag; /* Flag to set when this handler is deleted. */
struct GenericHandler *nextPtr;
/* Next handler in list of all generic
* handlers, or NULL for end of list. */
} GenericHandler;
static GenericHandler *genericList = NULL;
/* First handler in the list, or NULL. */
static GenericHandler *lastGenericPtr = NULL;
/* Last handler in list. */
/*
* There's a potential problem if Ck_HandleEvent is entered recursively.
* A handler cannot be deleted physically until we have returned from
* calling it. Otherwise, we're looking at unallocated memory in advancing to
* its `next' entry. We deal with the problem by using the `delete flag' and
* deleting handlers only when it's known that there's no handler active.
*
* The following variable has a non-zero value when a handler is active.
*/
static int genericHandlersActive = 0;
/*
* For barcode readers an instance of the following structure is linked
* to mainInfo. The supported DATA LOGIC barcode readers are connected
* between PC keyboard and PC keyboard controller and generate a data
* packet surrounded by start and end characters. If the start character
* is received a timer is started and the following keystrokes are
* collected into the buffer until the end character is received or the
* timer expires.
*/
#define DEFAULT_BARCODE_TIMEOUT 1000
typedef struct barcodeData {
Tk_TimerToken timer;/* Barcode packet timer. */
int pkttime; /* Timeout value. */
int startChar; /* Start of barcode packet character. */
int endChar; /* End of barcode packet character. */
int delivered; /* BarCode event has been delivered. */
int index; /* Current index into buffer. */
#if CK_USE_UTF
char buffer[256]; /* Here the barcode packet is assembled. */
#else
char buffer[128]; /* Here the barcode packet is assembled. */
#endif
} BarcodeData;
/*
* Timeout procedure for reading barcode packet:
*/
static void BarcodeTimeout _ANSI_ARGS_((ClientData clientData));
/*
*--------------------------------------------------------------
*
* Ck_CreateEventHandler --
*
* Arrange for a given procedure to be invoked whenever
* events from a given class occur in a given window.
*
* Results:
* None.
*
* Side effects:
* From now on, whenever an event of the type given by
* mask occurs for token and is processed by Ck_HandleEvent,
* proc will be called. See the manual entry for details
* of the calling sequence and return value for proc.
*
*--------------------------------------------------------------
*/
void
Ck_CreateEventHandler(winPtr, mask, proc, clientData)
CkWindow *winPtr; /* Window in which to create handler. */
long mask; /* Events for which proc should be called. */
Ck_EventProc *proc; /* Procedure to call for each
* selected event */
ClientData clientData; /* Arbitrary data to pass to proc. */
{
CkEventHandler *handlerPtr;
int found;
/*
* Skim through the list of existing handlers to see if there's
* already a handler declared with the same callback and clientData
* (if so, just change the mask). If no existing handler matches,
* then create a new handler.
*/
found = 0;
if (winPtr->handlerList == NULL) {
handlerPtr = (CkEventHandler *) ckalloc(sizeof (CkEventHandler));
winPtr->handlerList = handlerPtr;
goto initHandler;
} else {
for (handlerPtr = winPtr->handlerList; ;
handlerPtr = handlerPtr->nextPtr) {
if ((handlerPtr->proc == proc)
&& (handlerPtr->clientData == clientData)) {
handlerPtr->mask = mask;
found = 1;
}
if (handlerPtr->nextPtr == NULL) {
break;
}
}
}
/*
* Create a new handler if no matching old handler was found.
*/
if (!found) {
handlerPtr->nextPtr = (CkEventHandler *) ckalloc(
sizeof (CkEventHandler));
handlerPtr = handlerPtr->nextPtr;
initHandler:
handlerPtr->mask = mask;
handlerPtr->proc = proc;
handlerPtr->clientData = clientData;
handlerPtr->nextPtr = NULL;
}
}
/*
*--------------------------------------------------------------
*
* Ck_DeleteEventHandler --
*
* Delete a previously-created handler.
*
* Results:
* None.
*
* Side effects:
* If there existed a handler as described by the
* parameters, the handler is deleted so that proc
* will not be invoked again.
*
*--------------------------------------------------------------
*/
void
Ck_DeleteEventHandler(winPtr, mask, proc, clientData)
CkWindow *winPtr; /* Same as corresponding arguments passed */
long mask; /* previously to Ck_CreateEventHandler. */
Ck_EventProc *proc;
ClientData clientData;
{
CkEventHandler *handlerPtr;
InProgress *ipPtr;
CkEventHandler *prevPtr;
/*
* Find the event handler to be deleted, or return
* immediately if it doesn't exist.
*/
for (handlerPtr = winPtr->handlerList, prevPtr = NULL; ;
prevPtr = handlerPtr, handlerPtr = handlerPtr->nextPtr) {
if (handlerPtr == NULL) {
return;
}
if ((handlerPtr->mask == mask) && (handlerPtr->proc == proc)
&& (handlerPtr->clientData == clientData)) {
break;
}
}
/*
* If Ck_HandleEvent is about to process this handler, tell it to
* process the next one instead.
*/
for (ipPtr = pendingPtr; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
if (ipPtr->nextHandler == handlerPtr) {
ipPtr->nextHandler = handlerPtr->nextPtr;
}
}
/*
* Free resources associated with the handler.
*/
if (prevPtr == NULL) {
winPtr->handlerList = handlerPtr->nextPtr;
} else {
prevPtr->nextPtr = handlerPtr->nextPtr;
}
ckfree((char *) handlerPtr);
}
/*--------------------------------------------------------------
*
* Ck_CreateGenericHandler --
*
* Register a procedure to be called on each event, regardless
* of window. Generic handlers are useful for capturing
* events that aren't associated with windows, or events for windows
* not managed by Ck.
*
* Results:
* None.
*
* Side Effects:
* From now on, whenever an event is given to Ck_HandleEvent,
* invoke proc, giving it clientData and the event as arguments.
*
*--------------------------------------------------------------
*/
void
Ck_CreateGenericHandler(proc, clientData)
Ck_GenericProc *proc; /* Procedure to call on every event. */
ClientData clientData; /* One-word value to pass to proc. */
{
GenericHandler *handlerPtr;
handlerPtr = (GenericHandler *) ckalloc (sizeof (GenericHandler));
handlerPtr->proc = proc;
handlerPtr->clientData = clientData;
handlerPtr->deleteFlag = 0;
handlerPtr->nextPtr = NULL;
if (genericList == NULL) {
genericList = handlerPtr;
} else {
lastGenericPtr->nextPtr = handlerPtr;
}
lastGenericPtr = handlerPtr;
}
/*
*--------------------------------------------------------------
*
* Ck_DeleteGenericHandler --
*
* Delete a previously-created generic handler.
*
* Results:
* None.
*
* Side Effects:
* If there existed a handler as described by the parameters,
* that handler is logically deleted so that proc will not be
* invoked again. The physical deletion happens in the event
* loop in Ck_HandleEvent.
*
*--------------------------------------------------------------
*/
void
Ck_DeleteGenericHandler(proc, clientData)
Ck_GenericProc *proc;
ClientData clientData;
{
GenericHandler * handler;
for (handler = genericList; handler; handler = handler->nextPtr) {
if ((handler->proc == proc) && (handler->clientData == clientData)) {
handler->deleteFlag = 1;
}
}
}
/*
*--------------------------------------------------------------
*
* Ck_HandleEvent --
*
* Given an event, invoke all the handlers that have
* been registered for the event.
*
* Results:
* None.
*
* Side effects:
* Depends on the handlers.
*
*--------------------------------------------------------------
*/
void
Ck_HandleEvent(mainPtr, eventPtr)
CkMainInfo *mainPtr;
CkEvent *eventPtr; /* Event to dispatch. */
{
CkEventHandler *handlerPtr;
GenericHandler *genericPtr;
GenericHandler *genPrevPtr;
CkWindow *winPtr;
InProgress ip;
/*
* Invoke all the generic event handlers (those that are
* invoked for all events). If a generic event handler reports that
* an event is fully processed, go no further.
*/
for (genPrevPtr = NULL, genericPtr = genericList; genericPtr != NULL; ) {
if (genericPtr->deleteFlag) {
if (!genericHandlersActive) {
GenericHandler *tmpPtr;
/*
* This handler needs to be deleted and there are no
* calls pending through the handler, so now is a safe
* time to delete it.
*/
tmpPtr = genericPtr->nextPtr;
if (genPrevPtr == NULL) {
genericList = tmpPtr;
} else {
genPrevPtr->nextPtr = tmpPtr;
}
if (tmpPtr == NULL) {
lastGenericPtr = genPrevPtr;
}
(void) ckfree((char *) genericPtr);
genericPtr = tmpPtr;
continue;
}
} else {
int done;
genericHandlersActive++;
done = (*genericPtr->proc)(genericPtr->clientData, eventPtr);
genericHandlersActive--;
if (done) {
return;
}
}
genPrevPtr = genericPtr;
genericPtr = genPrevPtr->nextPtr;
}
if (Tcl_FindHashEntry(&mainPtr->winTable, (char *) eventPtr->any.winPtr)
== NULL) {
/*
* There isn't a CkWindow structure for this window.
*/
return;
}
winPtr = eventPtr->any.winPtr;
ip.eventPtr = eventPtr;
ip.winPtr = winPtr;
ip.nextHandler = NULL;
ip.nextPtr = pendingPtr;
pendingPtr = &ip;
for (handlerPtr = winPtr->handlerList; handlerPtr != NULL; ) {
if ((handlerPtr->mask & eventPtr->type) != 0) {
ip.nextHandler = handlerPtr->nextPtr;
(*(handlerPtr->proc))(handlerPtr->clientData, eventPtr);
handlerPtr = ip.nextHandler;
} else {
handlerPtr = handlerPtr->nextPtr;
}
}
/*
* Pass the event to the "bind" command mechanism.
*/
CkBindEventProc(winPtr, eventPtr);
pendingPtr = ip.nextPtr;
}
/*
*--------------------------------------------------------------
*
* CkEventDeadWindow --
*
* This procedure is invoked when it is determined that
* a window is dead. It cleans up event-related information
* about the window.
*
* Results:
* None.
*
* Side effects:
* Various things get cleaned up and recycled.
*
*--------------------------------------------------------------
*/
void
CkEventDeadWindow(winPtr)
CkWindow *winPtr; /* Information about the window
* that is being deleted. */
{
CkEventHandler *handlerPtr;
InProgress *ipPtr;
/*
* While deleting all the handlers, be careful to check for
* Ck_HandleEvent being about to process one of the deleted
* handlers. If it is, tell it to quit (all of the handlers
* are being deleted).
*/
while (winPtr->handlerList != NULL) {
handlerPtr = winPtr->handlerList;
winPtr->handlerList = handlerPtr->nextPtr;
for (ipPtr = pendingPtr; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
if (ipPtr->nextHandler == handlerPtr) {
ipPtr->nextHandler = NULL;
}
if (ipPtr->winPtr == winPtr) {
ipPtr->winPtr = NULL;
}
}
ckfree((char *) handlerPtr);
}
}
/*
*--------------------------------------------------------------
*
* CkHandleInput --
*
* Process keyboard events from curses.
*
* Results:
* The return value is TK_FILE_HANDLED if the procedure
* actually found an event to process. If no event was found
* then TK_READABLE is returned.
*
* Side effects:
* The handling of the event could cause additional
* side effects.
*
*--------------------------------------------------------------
*/
#if (TCL_MAJOR_VERSION == 7) && (TCL_MINOR_VERSION <= 4)
int
CkHandleInput(clientData, mask, flags)
ClientData clientData; /* Pointer to main info. */
int mask; /* OR-ed combination of the bits TK_READABLE,
* TK_WRITABLE, and TK_EXCEPTION, indicating
* current state of file. */
int flags; /* Flag bits passed to Tk_DoOneEvent;
* contains bits such as TK_DONT_WAIT,
* TK_X_EVENTS, Tk_FILE_EVENTS, etc. */
{
CkEvent event;
CkMainInfo *mainPtr = (CkMainInfo *) clientData;
int code;
static int buttonpressed = 0;
static int errCount = 0;
if (!(flags & TK_FILE_EVENTS))
return 0;
if (!(mask & TK_READABLE))
return TK_READABLE;
code = getch();
if (code == ERR) {
if (++errCount > 100) {
Tcl_Eval(mainPtr->interp, "exit 99");
exit(99); /* just in case */
}
return TK_READABLE;
}
errCount = 0;
/*
* Barcode reader handling.
*/
if (mainPtr->flags & CK_HAS_BARCODE) {
BarcodeData *bd = (BarcodeData *) mainPtr->barcodeData;
/*
* Here, special handling for nested event loops:
* If BarCode event has been delivered already, we must
* reset the buffer index in order to get normal Key events.
*/
if (bd->delivered && bd->index >= 0) {
bd->delivered = 0;
bd->index = -1;
}
if (bd->index >= 0 || code == bd->startChar) {
if (code == bd->startChar) {
Tk_DeleteTimerHandler(bd->timer);
bd->timer = Tk_CreateTimerHandler(bd->pkttime, BarcodeTimeout,
(ClientData) mainPtr);
bd->index = 0;
} else if (code == bd->endChar) {
Tk_DeleteTimerHandler(bd->timer);
bd->timer = (Tk_TimerToken) NULL;
bd->delivered = 1;
event.key.type = CK_EV_BARCODE;
event.key.winPtr = mainPtr->focusPtr;
event.key.keycode = 0;
Ck_HandleEvent(mainPtr, &event);
/*
* Careful, event handler could turn barcode off.
* Only reset buffer index if BarCode event delivered
* flag is set.
*/
bd = (BarcodeData *) mainPtr->barcodeData;
if (bd != NULL && bd->delivered) {
bd->delivered = 0;
bd->index = -1;
}
return TK_FILE_HANDLED;
} else {
/* Leave space for one NUL byte. */
if (bd->index < sizeof (bd->buffer) - 1)
bd->buffer[bd->index] = code;
bd->index++;
}
return TK_READABLE;
}
}
#ifdef NCURSES_MOUSE_VERSION
/*
* ncurses-1.9.8a has builtin mouse support for at least xterm.
*/
if (code == KEY_MOUSE) {
MEVENT mEvent;
int i;
if (mainPtr->flags & CK_MOUSE_XTERM) {
goto getMouse;
}
if (getmouse(&mEvent) == ERR)
return TK_FILE_HANDLED;
for (i = 1; i <= 3; i++) {
if (BUTTON_PRESS(mEvent.bstate, i)) {
event.mouse.type = CK_EV_MOUSE_DOWN;
goto mouseEventNC;
} else if (BUTTON_RELEASE(mEvent.bstate, i)) {
event.mouse.type = CK_EV_MOUSE_UP;
mouseEventNC:
event.mouse.button = i;
event.mouse.x = mEvent.x;
event.mouse.y = mEvent.y;
event.mouse.winPtr = Ck_GetWindowXY(mainPtr, &event.mouse.x,
&event.mouse.y, 1);
Ck_HandleEvent(mainPtr, &event);
return TK_FILE_HANDLED;
}
}
}
#endif
#ifdef __WIN32__
if ((mainPtr->flags & CK_HAS_MOUSE) && code == KEY_MOUSE) {
int i;
request_mouse_pos();
for (i = 0; i < 3; i++) {
if (Mouse_status.button[i] == BUTTON_PRESSED) {
event.mouse.type = CK_EV_MOUSE_DOWN;
goto mouseEvt;
} else if (Mouse_status.button[i] == BUTTON_RELEASED) {
event.mouse.type = CK_EV_MOUSE_UP;
mouseEvt:
event.mouse.button = i + 1;
event.mouse.x = Mouse_status.x;
event.mouse.y = Mouse_status.y;
event.mouse.winPtr = Ck_GetWindowXY(mainPtr, &event.mouse.x,
&event.mouse.y, 1);
Ck_HandleEvent(mainPtr, &event);
return TK_FILE_HANDLED;
}
}
}
#endif
/*
* Xterm mouse report handling: Although GPM has an xterm module
* this is separately done here, since I want to be as independent
* as possible from GPM.
* It is assumed that the entire mouse report comes in one piece
* ie without any delay between the 6 relevant characters.
* Only a single button down/up event is generated.
*/
#ifndef __WIN32__
if ((mainPtr->flags & CK_MOUSE_XTERM) && (code == 0x1b || code == 0x9b)) {
int code2;
if (code == 0x9b)
goto getM;
code2 = getch();
if (code2 != ERR) {
if (code2 == '[')
goto getM;
ungetch(code2);
} else
errCount++;
goto keyEvent;
getM:
code2 = getch();
if (code2 != ERR) {
if (code2 == 'M')
goto getMouse;
ungetch(code2);
} else
errCount++;
goto keyEvent;
getMouse:
code2 = getch();
if (code2 == ERR) {
errCount++;
return TK_READABLE;
}
event.mouse.button = ((code2 - 0x20) & 0x03) + 1;
code2 = getch();
if (code2 == ERR) {
errCount++;
return TK_READABLE;
}
event.mouse.x = event.mouse.rootx = code2 - 0x20 - 1;
code2 = getch();
if (code2 == ERR) {
errCount++;
return TK_READABLE;
}
event.mouse.y = event.mouse.rooty = code2 - 0x20 - 1;
if (event.mouse.button > 3) {
event.mouse.button = buttonpressed;
buttonpressed = 0;
event.mouse.type = CK_EV_MOUSE_UP;
goto mouseEvent;
} else if (buttonpressed == 0) {
buttonpressed = event.mouse.button;
event.mouse.type = CK_EV_MOUSE_DOWN;
mouseEvent:
event.mouse.winPtr = Ck_GetWindowXY(mainPtr, &event.mouse.x,
&event.mouse.y, 1);
Ck_HandleEvent(mainPtr, &event);
return TK_FILE_HANDLED;
}
return TK_READABLE;
}
#endif
keyEvent:
event.key.type = CK_EV_KEYPRESS;
event.key.winPtr = mainPtr->focusPtr;
event.key.keycode = code;
if (event.key.keycode < 0)
event.key.keycode &= 0xff;
Ck_HandleEvent(mainPtr, &event);
return TK_FILE_HANDLED;
}
#else
void
CkHandleInput(clientData, mask)
ClientData clientData; /* Pointer to main info. */
int mask; /* OR-ed combination of the bits TK_READABLE,
* TK_WRITABLE, and TK_EXCEPTION, indicating
* current state of file. */
{
CkEvent event;
CkQEvt *qev;
CkMainInfo *mainPtr = (CkMainInfo *) clientData;
int code;
static int buttonpressed = 0;
static int errCount = 0;
#if CK_USE_UTF
int ucp = 0;
char ucbuf[16];
Tcl_UniChar uch = 0;
#endif
if (!(mask & TCL_READABLE))
return;
code = getch();
if (code == ERR) {
if (++errCount > 100) {
Tcl_Eval(mainPtr->interp, "exit 99");
#if (TCL_MAJOR_VERSION >= 8)
Tcl_Exit(99); /* just in case */
#else
exit(99); /* just in case */
#endif
}
return;
}
errCount = 0;
#if CK_USE_UTF
if (mainPtr->isoEncoding == NULL && code >= 0xc0 && code < 0x100) {
int need = 2;
if (code >= 0xfc)
need = 6;
else if (code >= 0xf8)
need = 5;
else if (code >= 0xf0)
need = 4;
else if (code >= 0xe0)
need = 3;
nodelay(curscr, FALSE);
while (need-- > 0 && code >= 0x80 && code < 0x100) {
ucbuf[ucp++] = code;
code = getch();
if (code == ERR)
break;
if (code < 0x80 || code >= 0xc0) {
ungetch(code);
break;
}
}
nodelay(curscr, TRUE);
if (code >= 0x100 && code != ERR)
ungetch(code);
ucbuf[ucp] = '\0';
Tcl_UtfToUniChar(ucbuf, &uch);
code = 0;
}
#endif
/*
* Barcode reader handling.
*/
if (mainPtr->flags & CK_HAS_BARCODE) {
BarcodeData *bd = (BarcodeData *) mainPtr->barcodeData;
/*
* Here, special handling for nested event loops:
* If BarCode event has been delivered already, we must
* reset the buffer index in order to get normal Key events.
*/
if (bd->delivered && bd->index >= 0) {
bd->delivered = 0;
bd->index = -1;
}
if (bd->index >= 0 || code == bd->startChar) {
if (code == bd->startChar) {
Tk_DeleteTimerHandler(bd->timer);
bd->timer = Tk_CreateTimerHandler(bd->pkttime, BarcodeTimeout,
(ClientData) mainPtr);
bd->index = 0;
} else if (code == bd->endChar) {
Tk_DeleteTimerHandler(bd->timer);
bd->timer = (Tk_TimerToken) NULL;
bd->delivered = 1;
event.key.type = CK_EV_BARCODE;
event.key.winPtr = mainPtr->focusPtr;
event.key.keycode = 0;
Ck_HandleEvent(mainPtr, &event);
/*
* Careful, event handler could turn barcode off.
* Only reset buffer index if BarCode event delivered
* flag is set.
*/
bd = (BarcodeData *) mainPtr->barcodeData;
if (bd != NULL && bd->delivered) {
bd->delivered = 0;
bd->index = -1;
}
return;
} else {
/* Leave space for one NUL byte. */
if (bd->index < sizeof (bd->buffer) - 1) {
#if CK_USE_UTF
char c, utfb[8];
int numc, i;
c = code;
if (mainPtr->isoEncoding) {
Tcl_ExternalToUtf(NULL, mainPtr->isoEncoding,
&c, 1, 0, NULL, utfb, sizeof (utfb),
NULL, &numc, NULL);
if (bd->index + numc < sizeof (bd->buffer) - 1) {
for (i = 0; i < numc; i++)
bd->buffer[bd->index + i] = utfb[i];
} else
bd->buffer[bd->index] = '\0';
bd->index += numc - 1;
} else {
if (code != 0) {
bd->buffer[bd->index] = code;
} else if (uch < 0x100) {
bd->buffer[bd->index] = uch;
}
}
#else
bd->buffer[bd->index] = code;
#endif
}
bd->index++;
}
return;
}
}
#ifdef NCURSES_MOUSE_VERSION
/*
* ncurses-1.9.8a has builtin mouse support for at least xterm.
*/
if (code == KEY_MOUSE) {
MEVENT mEvent;
int i;
if (mainPtr->flags & CK_MOUSE_XTERM) {
goto getMouse;
}
if (getmouse(&mEvent) == ERR)
return;
for (i = 1; i <= 3; i++) {
if (BUTTON_PRESS(mEvent.bstate, i)) {
event.mouse.type = CK_EV_MOUSE_DOWN;
goto mouseEventNC;
} else if (BUTTON_RELEASE(mEvent.bstate, i)) {
event.mouse.type = CK_EV_MOUSE_UP;
mouseEventNC:
event.mouse.button = i;
event.mouse.rootx = mEvent.x;
event.mouse.rooty = mEvent.y;
event.mouse.x = mEvent.x;
event.mouse.y = mEvent.y;
event.mouse.winPtr = Ck_GetWindowXY(mainPtr, &event.mouse.x,
&event.mouse.y, 1);
goto mkEvent;
}
}
}
#endif
#ifdef __WIN32__
if ((mainPtr->flags & CK_HAS_MOUSE) && code == KEY_MOUSE) {
int i;
request_mouse_pos();
for (i = 0; i < 3; i++) {
if (Mouse_status.button[i] == BUTTON_PRESSED) {
event.mouse.type = CK_EV_MOUSE_DOWN;
goto mouseEvt;
} else if (Mouse_status.button[i] == BUTTON_RELEASED) {
event.mouse.type = CK_EV_MOUSE_UP;
mouseEvt:
event.mouse.button = i + 1;
event.mouse.x = Mouse_status.x;
event.mouse.y = Mouse_status.y;
event.mouse.winPtr = Ck_GetWindowXY(mainPtr, &event.mouse.x,
&event.mouse.y, 1);
goto mkEvent;
}
}
}
#endif
/*
* Xterm mouse report handling: Although GPM has an xterm module
* this is separately done here, since I want to be as independent
* as possible from GPM.
* It is assumed that the entire mouse report comes in one piece
* ie without any delay between the 6 relevant characters.
* Only a single button down/up event is generated.
*/
#ifndef __WIN32__
if ((mainPtr->flags & CK_MOUSE_XTERM) && (code == 0x1b || code == 0x9b)) {
int code2;
if (code == 0x9b)
goto getM;
code2 = getch();
if (code2 != ERR) {
if (code2 == '[')
goto getM;
ungetch(code2);
} else
errCount++;
goto keyEvent;
getM:
code2 = getch();
if (code2 != ERR) {
if (code2 == 'M')
goto getMouse;
ungetch(code2);
} else
errCount++;
goto keyEvent;
getMouse:
code2 = getch();
if (code2 == ERR) {
errCount++;
return;
}
event.mouse.button = ((code2 - 0x20) & 0x03) + 1;
code2 = getch();
if (code2 == ERR) {
errCount++;
return;
}
event.mouse.x = event.mouse.rootx = code2 - 0x20 - 1;
code2 = getch();
if (code2 == ERR) {
errCount++;
return;
}
event.mouse.y = event.mouse.rooty = code2 - 0x20 - 1;
if (event.mouse.button > 3) {
event.mouse.button = buttonpressed;
buttonpressed = 0;
event.mouse.type = CK_EV_MOUSE_UP;
goto mouseEvent;
} else if (buttonpressed == 0) {
buttonpressed = event.mouse.button;
event.mouse.type = CK_EV_MOUSE_DOWN;
mouseEvent:
event.mouse.winPtr = Ck_GetWindowXY(mainPtr, &event.mouse.x,
&event.mouse.y, 1);
goto mkEvent;
}
return;
}
#endif