diff options
Diffstat (limited to 'nx-X11/programs/Xserver/xkb/xkbAccessX.c')
| -rw-r--r-- | nx-X11/programs/Xserver/xkb/xkbAccessX.c | 744 |
1 files changed, 744 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/xkb/xkbAccessX.c b/nx-X11/programs/Xserver/xkb/xkbAccessX.c new file mode 100644 index 000000000..4069ac209 --- /dev/null +++ b/nx-X11/programs/Xserver/xkb/xkbAccessX.c @@ -0,0 +1,744 @@ +/************************************************************ +Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc. + +Permission to use, copy, modify, and distribute this +software and its documentation for any purpose and without +fee is hereby granted, provided that the above copyright +notice appear in all copies and that both that copyright +notice and this permission notice appear in supporting +documentation, and that the name of Silicon Graphics not be +used in advertising or publicity pertaining to distribution +of the software without specific prior written permission. +Silicon Graphics makes no representation about the suitability +of this software for any purpose. It is provided "as is" +without any express or implied warranty. + +SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS +SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON +GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL +DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, +DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH +THE USE OR PERFORMANCE OF THIS SOFTWARE. + +********************************************************/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdio.h> +#include <math.h> +#include <nx-X11/X.h> +#include <nx-X11/Xproto.h> +#include <nx-X11/keysym.h> +#include "inputstr.h" +#include <xkbsrv.h> +#if !defined(WIN32) +#include <sys/time.h> +#endif + +int XkbDfltRepeatDelay= 660; +int XkbDfltRepeatInterval= 40; +void * XkbLastRepeatEvent= NULL; + +#define DFLT_TIMEOUT_CTRLS (XkbAX_KRGMask|XkbStickyKeysMask|XkbMouseKeysMask) +#define DFLT_TIMEOUT_OPTS (XkbAX_IndicatorFBMask) + +unsigned short XkbDfltAccessXTimeout= 120; +unsigned int XkbDfltAccessXTimeoutMask= DFLT_TIMEOUT_CTRLS; +unsigned int XkbDfltAccessXTimeoutValues= 0; +unsigned int XkbDfltAccessXTimeoutOptionsMask= DFLT_TIMEOUT_OPTS; +unsigned int XkbDfltAccessXTimeoutOptionsValues= 0; +unsigned int XkbDfltAccessXFeedback= XkbAccessXFeedbackMask; +unsigned short XkbDfltAccessXOptions= XkbAX_AllOptionsMask & ~(XkbAX_IndicatorFBMask|XkbAX_SKReleaseFBMask|XkbAX_SKRejectFBMask); + +void +AccessXComputeCurveFactor(XkbSrvInfoPtr xkbi,XkbControlsPtr ctrls) +{ + xkbi->mouseKeysCurve= 1.0+(((double)ctrls->mk_curve)*0.001); + xkbi->mouseKeysCurveFactor= ( ((double)ctrls->mk_max_speed)/ + pow((double)ctrls->mk_time_to_max,xkbi->mouseKeysCurve)); + return; +} + +void +AccessXInit(DeviceIntPtr keybd) +{ +XkbSrvInfoPtr xkbi = keybd->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; + + xkbi->shiftKeyCount= 0; + xkbi->mouseKeysCounter= 0; + xkbi->inactiveKey= 0; + xkbi->slowKey= 0; + xkbi->repeatKey= 0; + xkbi->krgTimerActive= _OFF_TIMER; + xkbi->beepType= _BEEP_NONE; + xkbi->beepCount= 0; + xkbi->mouseKeyTimer= NULL; + xkbi->slowKeysTimer= NULL; + xkbi->bounceKeysTimer= NULL; + xkbi->repeatKeyTimer= NULL; + xkbi->krgTimer= NULL; + xkbi->beepTimer= NULL; + ctrls->repeat_delay = XkbDfltRepeatDelay; + ctrls->repeat_interval = XkbDfltRepeatInterval; + ctrls->debounce_delay = 300; + ctrls->slow_keys_delay = 300; + ctrls->mk_delay = 160; + ctrls->mk_interval = 40; + ctrls->mk_time_to_max = 30; + ctrls->mk_max_speed = 30; + ctrls->mk_curve = 500; + ctrls->mk_dflt_btn = 1; + ctrls->ax_timeout = XkbDfltAccessXTimeout; + ctrls->axt_ctrls_mask = XkbDfltAccessXTimeoutMask; + ctrls->axt_ctrls_values = XkbDfltAccessXTimeoutValues; + ctrls->axt_opts_mask = XkbDfltAccessXTimeoutOptionsMask; + ctrls->axt_opts_values = XkbDfltAccessXTimeoutOptionsValues; + if (XkbDfltAccessXTimeout) + ctrls->enabled_ctrls |= XkbAccessXTimeoutMask; + else + ctrls->enabled_ctrls &= ~XkbAccessXTimeoutMask; + ctrls->enabled_ctrls |= XkbDfltAccessXFeedback; + ctrls->ax_options = XkbDfltAccessXOptions; + AccessXComputeCurveFactor(xkbi,ctrls); + return; +} + +/************************************************************************/ +/* */ +/* AccessXKeyboardEvent */ +/* */ +/* Generate a synthetic keyboard event. */ +/* */ +/************************************************************************/ +static void +AccessXKeyboardEvent(DeviceIntPtr keybd, + BYTE type, + BYTE keyCode, + Bool isRepeat) +{ +xEvent xE; + + xE.u.u.type = type; + xE.u.u.detail = keyCode; + xE.u.keyButtonPointer.time = GetTimeInMillis(); +#ifdef DEBUG + if (xkbDebugFlags&0x8) { + ErrorF("AXKE: Key %d %s\n",keyCode,(xE.u.u.type==KeyPress?"down":"up")); + } +#endif + + if (_XkbIsPressEvent(type)) + XkbDDXKeyClick(keybd,keyCode,TRUE); + else if (isRepeat) + XkbLastRepeatEvent= (void *)&xE; + XkbProcessKeyboardEvent(&xE,keybd,1L); + XkbLastRepeatEvent= NULL; + return; + +} /* AccessXKeyboardEvent */ + +/************************************************************************/ +/* */ +/* AccessXKRGTurnOn */ +/* */ +/* Turn the keyboard response group on. */ +/* */ +/************************************************************************/ +static void +AccessXKRGTurnOn(DeviceIntPtr dev,CARD16 KRGControl,xkbControlsNotify *pCN) +{ +XkbSrvInfoPtr xkbi = dev->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; +XkbControlsRec old; +XkbEventCauseRec cause; +XkbSrvLedInfoPtr sli; + + old= *ctrls; + ctrls->enabled_ctrls |= (KRGControl&XkbAX_KRGMask); + if (XkbComputeControlsNotify(dev,&old,ctrls,pCN,False)) + XkbSendControlsNotify(dev,pCN); + cause.kc= pCN->keycode; + cause.event= pCN->eventType; + cause.mjr= pCN->requestMajor; + cause.mnr= pCN->requestMinor; + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + XkbUpdateIndicators(dev,sli->usesControls,True,NULL,&cause); + if (XkbAX_NeedFeedback(ctrls,XkbAX_FeatureFBMask)) + XkbDDXAccessXBeep(dev,_BEEP_FEATURE_ON,KRGControl); + return; + +} /* AccessXKRGTurnOn */ + +/************************************************************************/ +/* */ +/* AccessXKRGTurnOff */ +/* */ +/* Turn the keyboard response group off. */ +/* */ +/************************************************************************/ +static void +AccessXKRGTurnOff(DeviceIntPtr dev,xkbControlsNotify *pCN) +{ +XkbSrvInfoPtr xkbi = dev->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; +XkbControlsRec old; +XkbEventCauseRec cause; +XkbSrvLedInfoPtr sli; + + old = *ctrls; + ctrls->enabled_ctrls &= ~XkbAX_KRGMask; + if (XkbComputeControlsNotify(dev,&old,ctrls,pCN,False)) + XkbSendControlsNotify(dev,pCN); + cause.kc= pCN->keycode; + cause.event= pCN->eventType; + cause.mjr= pCN->requestMajor; + cause.mnr= pCN->requestMinor; + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + XkbUpdateIndicators(dev,sli->usesControls,True,NULL,&cause); + if (XkbAX_NeedFeedback(ctrls,XkbAX_FeatureFBMask)) { + unsigned changes= old.enabled_ctrls^ctrls->enabled_ctrls; + XkbDDXAccessXBeep(dev,_BEEP_FEATURE_OFF,changes); + } + return; + +} /* AccessXKRGTurnOff */ + +/************************************************************************/ +/* */ +/* AccessXStickyKeysTurnOn */ +/* */ +/* Turn StickyKeys on. */ +/* */ +/************************************************************************/ +static void +AccessXStickyKeysTurnOn(DeviceIntPtr dev,xkbControlsNotify *pCN) +{ +XkbSrvInfoPtr xkbi = dev->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; +XkbControlsRec old; +XkbEventCauseRec cause; +XkbSrvLedInfoPtr sli; + + old = *ctrls; + ctrls->enabled_ctrls |= XkbStickyKeysMask; + xkbi->shiftKeyCount = 0; + if (XkbComputeControlsNotify(dev,&old,ctrls,pCN,False)) + XkbSendControlsNotify(dev,pCN); + cause.kc= pCN->keycode; + cause.event= pCN->eventType; + cause.mjr= pCN->requestMajor; + cause.mnr= pCN->requestMinor; + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + XkbUpdateIndicators(dev,sli->usesControls,True,NULL,&cause); + if (XkbAX_NeedFeedback(ctrls,XkbAX_FeatureFBMask)) { + XkbDDXAccessXBeep(dev,_BEEP_FEATURE_ON,XkbStickyKeysMask); + } + return; + +} /* AccessXStickyKeysTurnOn */ + +/************************************************************************/ +/* */ +/* AccessXStickyKeysTurnOff */ +/* */ +/* Turn StickyKeys off. */ +/* */ +/************************************************************************/ +static void +AccessXStickyKeysTurnOff(DeviceIntPtr dev,xkbControlsNotify *pCN) +{ +XkbSrvInfoPtr xkbi = dev->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; +XkbControlsRec old; +XkbEventCauseRec cause; +XkbSrvLedInfoPtr sli; + + old = *ctrls; + ctrls->enabled_ctrls &= ~XkbStickyKeysMask; + xkbi->shiftKeyCount = 0; + if (XkbComputeControlsNotify(dev,&old,ctrls,pCN,False)) + XkbSendControlsNotify(dev,pCN); + + cause.kc= pCN->keycode; + cause.event= pCN->eventType; + cause.mjr= pCN->requestMajor; + cause.mnr= pCN->requestMinor; + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + XkbUpdateIndicators(dev,sli->usesControls,True,NULL,&cause); + if (XkbAX_NeedFeedback(ctrls,XkbAX_FeatureFBMask)) { + XkbDDXAccessXBeep(dev,_BEEP_FEATURE_OFF,XkbStickyKeysMask); + } +#ifndef NO_CLEAR_LATCHES_FOR_STICKY_KEYS_OFF + XkbClearAllLatchesAndLocks(dev,xkbi,False,&cause); +#endif + return; +} /* AccessXStickyKeysTurnOff */ + +static CARD32 +AccessXKRGExpire(OsTimerPtr timer,CARD32 now,void * arg) +{ +XkbSrvInfoPtr xkbi= ((DeviceIntPtr)arg)->key->xkbInfo; +xkbControlsNotify cn; + + if (xkbi->krgTimerActive==_KRG_WARN_TIMER) { + XkbDDXAccessXBeep((DeviceIntPtr)arg,_BEEP_SLOW_WARN,XkbStickyKeysMask); + xkbi->krgTimerActive= _KRG_TIMER; + return 4000; + } + xkbi->krgTimerActive= _OFF_TIMER; + cn.keycode = 0; + cn.eventType = 0; + cn.requestMajor = 0; + cn.requestMinor = 0; + if (xkbi->desc->ctrls->enabled_ctrls&XkbSlowKeysMask) + AccessXKRGTurnOff((DeviceIntPtr)arg,&cn); + else AccessXKRGTurnOn((DeviceIntPtr)arg,XkbSlowKeysMask,&cn); + return 0; +} + +static CARD32 +AccessXRepeatKeyExpire(OsTimerPtr timer,CARD32 now,void * arg) +{ +XkbSrvInfoPtr xkbi= ((DeviceIntPtr)arg)->key->xkbInfo; +KeyCode key; + + if (xkbi->repeatKey==0) + return 0; + key= xkbi->repeatKey; + AccessXKeyboardEvent((DeviceIntPtr)arg,KeyRelease,key,True); + AccessXKeyboardEvent((DeviceIntPtr)arg,KeyPress,key,True); + return xkbi->desc->ctrls->repeat_interval; +} + +void +AccessXCancelRepeatKey(XkbSrvInfoPtr xkbi,KeyCode key) +{ + if (xkbi->repeatKey==key) + xkbi->repeatKey= 0; + return; +} + +static CARD32 +AccessXSlowKeyExpire(OsTimerPtr timer,CARD32 now,void * arg) +{ +DeviceIntPtr keybd; +XkbSrvInfoPtr xkbi; +XkbDescPtr xkb; +XkbControlsPtr ctrls; + + keybd= (DeviceIntPtr)arg; + xkbi= keybd->key->xkbInfo; + xkb= xkbi->desc; + ctrls= xkb->ctrls; + if (xkbi->slowKey!=0) { + xkbAccessXNotify ev; + KeySym *sym= XkbKeySymsPtr(xkb,xkbi->slowKey); + ev.detail= XkbAXN_SKAccept; + ev.keycode= xkbi->slowKey; + ev.slowKeysDelay= ctrls->slow_keys_delay; + ev.debounceDelay= ctrls->debounce_delay; + XkbSendAccessXNotify(keybd,&ev); + if (XkbAX_NeedFeedback(ctrls,XkbAX_SKAcceptFBMask)) + XkbDDXAccessXBeep(keybd,_BEEP_SLOW_ACCEPT,XkbSlowKeysMask); + AccessXKeyboardEvent(keybd,KeyPress,xkbi->slowKey,False); + /* check for magic sequences */ + if ((ctrls->enabled_ctrls&XkbAccessXKeysMask) && + ((sym[0]==XK_Shift_R)||(sym[0]==XK_Shift_L))) + xkbi->shiftKeyCount++; + + /* Start repeating if necessary. Stop autorepeating if the user + * presses a non-modifier key that doesn't autorepeat. + */ + if (keybd->kbdfeed->ctrl.autoRepeat && + ((xkbi->slowKey != xkbi->mouseKey) || (!xkbi->mouseKeysAccel)) && + (ctrls->enabled_ctrls&XkbRepeatKeysMask)) { + if (BitIsOn(keybd->kbdfeed->ctrl.autoRepeats,xkbi->slowKey)) + { + xkbi->repeatKey = xkbi->slowKey; + xkbi->repeatKeyTimer= TimerSet(xkbi->repeatKeyTimer, + 0, ctrls->repeat_delay, + AccessXRepeatKeyExpire, (void *)keybd); + } + } + } + return 0; +} + +static CARD32 +AccessXBounceKeyExpire(OsTimerPtr timer,CARD32 now,void * arg) +{ +XkbSrvInfoPtr xkbi= ((DeviceIntPtr)arg)->key->xkbInfo; + + xkbi->inactiveKey= 0; + return 0; +} + +static CARD32 +AccessXTimeoutExpire(OsTimerPtr timer,CARD32 now,void * arg) +{ +DeviceIntPtr dev = (DeviceIntPtr)arg; +XkbSrvInfoPtr xkbi= dev->key->xkbInfo; +XkbControlsPtr ctrls= xkbi->desc->ctrls; +XkbControlsRec old; +xkbControlsNotify cn; +XkbEventCauseRec cause; +XkbSrvLedInfoPtr sli; + + if (xkbi->lastPtrEventTime) { + unsigned timeToWait = (ctrls->ax_timeout*1000); + unsigned timeElapsed = (now-xkbi->lastPtrEventTime); + + if (timeToWait > timeElapsed) + return (timeToWait - timeElapsed); + } + old= *ctrls; + xkbi->shiftKeyCount= 0; + ctrls->enabled_ctrls&= ~ctrls->axt_ctrls_mask; + ctrls->enabled_ctrls|= + (ctrls->axt_ctrls_values&ctrls->axt_ctrls_mask); + if (ctrls->axt_opts_mask) { + ctrls->ax_options&= ~ctrls->axt_opts_mask; + ctrls->ax_options|= (ctrls->axt_opts_values&ctrls->axt_opts_mask); + } + if (XkbComputeControlsNotify(dev,&old,ctrls,&cn,False)) { + cn.keycode = 0; + cn.eventType = 0; + cn.requestMajor = 0; + cn.requestMinor = 0; + XkbSendControlsNotify(dev,&cn); + } + XkbSetCauseUnknown(&cause); + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + XkbUpdateIndicators(dev,sli->usesControls,True,NULL,&cause); + if (ctrls->ax_options!=old.ax_options) { + unsigned set,cleared,bell; + set= ctrls->ax_options&(~old.ax_options); + cleared= (~ctrls->ax_options)&old.ax_options; + if (set && cleared) bell= _BEEP_FEATURE_CHANGE; + else if (set) bell= _BEEP_FEATURE_ON; + else bell= _BEEP_FEATURE_OFF; + XkbDDXAccessXBeep(dev,bell,XkbAccessXTimeoutMask); + } + xkbi->krgTimerActive= _OFF_TIMER; + return 0; +} + + +/************************************************************************/ +/* */ +/* AccessXFilterPressEvent */ +/* */ +/* Filter events before they get any further if SlowKeys is turned on. */ +/* In addition, this routine handles the ever so popular magic key */ +/* acts for turning various accessibility features on/off. */ +/* */ +/* Returns TRUE if this routine has discarded the event. */ +/* Returns FALSE if the event needs further processing. */ +/* */ +/************************************************************************/ +Bool +AccessXFilterPressEvent( register xEvent * xE, + register DeviceIntPtr keybd, + int count) +{ +XkbSrvInfoPtr xkbi = keybd->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; +Bool ignoreKeyEvent = FALSE; +KeyCode key = xE->u.u.detail; +KeySym * sym = XkbKeySymsPtr(xkbi->desc,key); + + if (ctrls->enabled_ctrls&XkbAccessXKeysMask) { + /* check for magic sequences */ + if ((sym[0]==XK_Shift_R)||(sym[0]==XK_Shift_L)) { + if (XkbAX_NeedFeedback(ctrls,XkbAX_SlowWarnFBMask)) { + xkbi->krgTimerActive = _KRG_WARN_TIMER; + xkbi->krgTimer= TimerSet(xkbi->krgTimer, 0, 4000, + AccessXKRGExpire, (void *)keybd); + } + else { + xkbi->krgTimerActive = _KRG_TIMER; + xkbi->krgTimer= TimerSet(xkbi->krgTimer, 0, 8000, + AccessXKRGExpire, (void *)keybd); + } + if (!(ctrls->enabled_ctrls & XkbSlowKeysMask)) { + CARD32 now= GetTimeInMillis(); + if ((now-xkbi->lastShiftEventTime)>15000) + xkbi->shiftKeyCount= 1; + else xkbi->shiftKeyCount++; + xkbi->lastShiftEventTime= now; + } + } + else { + if (xkbi->krgTimerActive) { + xkbi->krgTimer= TimerSet(xkbi->krgTimer,0, 0, NULL, NULL); + xkbi->krgTimerActive= _OFF_TIMER; + } + } + } + + /* Don't transmit the KeyPress if SlowKeys is turned on; + * The wakeup handler will synthesize one for us if the user + * has held the key long enough. + */ + if (ctrls->enabled_ctrls & XkbSlowKeysMask) { + xkbAccessXNotify ev; + /* If key was already pressed, ignore subsequent press events + * from the server's autorepeat + */ + if(xkbi->slowKey == key) + return TRUE; + ev.detail= XkbAXN_SKPress; + ev.keycode= key; + ev.slowKeysDelay= ctrls->slow_keys_delay; + ev.debounceDelay= ctrls->debounce_delay; + XkbSendAccessXNotify(keybd,&ev); + if (XkbAX_NeedFeedback(ctrls,XkbAX_SKPressFBMask)) + XkbDDXAccessXBeep(keybd,_BEEP_SLOW_PRESS,XkbSlowKeysMask); + xkbi->slowKey= key; + xkbi->slowKeysTimer = TimerSet(xkbi->slowKeysTimer, + 0, ctrls->slow_keys_delay, + AccessXSlowKeyExpire, (void *)keybd); + ignoreKeyEvent = TRUE; + } + + /* Don't transmit the KeyPress if BounceKeys is turned on + * and the user pressed the same key within a given time period + * from the last release. + */ + else if ((ctrls->enabled_ctrls & XkbBounceKeysMask) && + (key == xkbi->inactiveKey)) { + if (XkbAX_NeedFeedback(ctrls,XkbAX_BKRejectFBMask)) + XkbDDXAccessXBeep(keybd,_BEEP_BOUNCE_REJECT,XkbBounceKeysMask); + ignoreKeyEvent = TRUE; + } + + /* Start repeating if necessary. Stop autorepeating if the user + * presses a non-modifier key that doesn't autorepeat. + */ + if (XkbDDXUsesSoftRepeat(keybd)) { + if ((keybd->kbdfeed->ctrl.autoRepeat) && + ((ctrls->enabled_ctrls&(XkbSlowKeysMask|XkbRepeatKeysMask))== + XkbRepeatKeysMask)) { + if (BitIsOn(keybd->kbdfeed->ctrl.autoRepeats,key)) + { +#ifdef DEBUG + if (xkbDebugFlags&0x10) + ErrorF("Starting software autorepeat...\n"); +#endif + xkbi->repeatKey = key; + xkbi->repeatKeyTimer= TimerSet(xkbi->repeatKeyTimer, + 0, ctrls->repeat_delay, + AccessXRepeatKeyExpire, (void *)keybd); + } + } + } + + /* Check for two keys being pressed at the same time. This section + * essentially says the following: + * + * If StickyKeys is on, and a modifier is currently being held down, + * and one of the following is true: the current key is not a modifier + * or the currentKey is a modifier, but not the only modifier being + * held down, turn StickyKeys off if the TwoKeys off ctrl is set. + */ + if ((ctrls->enabled_ctrls & XkbStickyKeysMask) && + (xkbi->state.base_mods!=0) && + (XkbAX_NeedOption(ctrls,XkbAX_TwoKeysMask))) { + xkbControlsNotify cn; + cn.keycode = key; + cn.eventType = KeyPress; + cn.requestMajor = 0; + cn.requestMinor = 0; + AccessXStickyKeysTurnOff(keybd,&cn); + } + + if (!ignoreKeyEvent) + XkbProcessKeyboardEvent(xE,keybd,count); + return ignoreKeyEvent; +} /* AccessXFilterPressEvent */ + +/************************************************************************/ +/* */ +/* AccessXFilterReleaseEvent */ +/* */ +/* Filter events before they get any further if SlowKeys is turned on. */ +/* In addition, this routine handles the ever so popular magic key */ +/* acts for turning various accessibility features on/off. */ +/* */ +/* Returns TRUE if this routine has discarded the event. */ +/* Returns FALSE if the event needs further processing. */ +/* */ +/************************************************************************/ +Bool +AccessXFilterReleaseEvent( register xEvent * xE, + register DeviceIntPtr keybd, + int count) +{ +XkbSrvInfoPtr xkbi = keybd->key->xkbInfo; +XkbControlsPtr ctrls = xkbi->desc->ctrls; +KeyCode key = xE->u.u.detail; +Bool ignoreKeyEvent = FALSE; + + /* Don't transmit the KeyRelease if BounceKeys is on and + * this is the release of a key that was ignored due to + * BounceKeys. + */ + if (ctrls->enabled_ctrls & XkbBounceKeysMask) { + if ((key!=xkbi->mouseKey)&&(!BitIsOn(keybd->key->down,key))) + ignoreKeyEvent = TRUE; + xkbi->inactiveKey= key; + xkbi->bounceKeysTimer= TimerSet(xkbi->bounceKeysTimer, 0, + ctrls->debounce_delay, + AccessXBounceKeyExpire, (void *)keybd); + } + + /* Don't transmit the KeyRelease if SlowKeys is turned on and + * the user didn't hold the key long enough. We know we passed + * the key if the down bit was set by CoreProcessKeyboadEvent. + */ + if (ctrls->enabled_ctrls & XkbSlowKeysMask) { + xkbAccessXNotify ev; + unsigned beep_type; + ev.keycode= key; + ev.slowKeysDelay= ctrls->slow_keys_delay; + ev.debounceDelay= ctrls->debounce_delay; + if (BitIsOn(keybd->key->down,key) | (xkbi->mouseKey == key)) { + ev.detail= XkbAXN_SKRelease; + beep_type= _BEEP_SLOW_RELEASE; + } + else { + ev.detail= XkbAXN_SKReject; + beep_type= _BEEP_SLOW_REJECT; + ignoreKeyEvent = TRUE; + } + XkbSendAccessXNotify(keybd,&ev); + if (XkbAX_NeedFeedback(ctrls,XkbAX_SKRejectFBMask)) { + XkbDDXAccessXBeep(keybd,beep_type,XkbSlowKeysMask); + } + if (xkbi->slowKey==key) + xkbi->slowKey= 0; + } + + /* Stop Repeating if the user releases the key that is currently + * repeating. + */ + if (xkbi->repeatKey==key) { + xkbi->repeatKey= 0; + } + + if ((ctrls->enabled_ctrls&XkbAccessXTimeoutMask)&&(ctrls->ax_timeout>0)) { + xkbi->lastPtrEventTime= 0; + xkbi->krgTimer= TimerSet(xkbi->krgTimer, 0, + ctrls->ax_timeout*1000, + AccessXTimeoutExpire, (void *)keybd); + xkbi->krgTimerActive= _ALL_TIMEOUT_TIMER; + } + else if (xkbi->krgTimerActive!=_OFF_TIMER) { + xkbi->krgTimer= TimerSet(xkbi->krgTimer, 0, 0, NULL, NULL); + xkbi->krgTimerActive= _OFF_TIMER; + } + + /* Keep track of how many times the Shift key has been pressed. + * If it has been pressed and released 5 times in a row, toggle + * the state of StickyKeys. + */ + if ((!ignoreKeyEvent)&&(xkbi->shiftKeyCount)) { + KeySym *pSym= XkbKeySymsPtr(xkbi->desc,key); + if ((pSym[0]!=XK_Shift_L)&&(pSym[0]!=XK_Shift_R)) { + xkbi->shiftKeyCount= 0; + } + else if (xkbi->shiftKeyCount>=5) { + xkbControlsNotify cn; + cn.keycode = key; + cn.eventType = KeyPress; + cn.requestMajor = 0; + cn.requestMinor = 0; + if (ctrls->enabled_ctrls & XkbStickyKeysMask) + AccessXStickyKeysTurnOff(keybd,&cn); + else + AccessXStickyKeysTurnOn(keybd,&cn); + xkbi->shiftKeyCount= 0; + } + } + + if (!ignoreKeyEvent) + XkbProcessKeyboardEvent(xE,keybd,count); + return ignoreKeyEvent; + +} /* AccessXFilterReleaseEvent */ + +/************************************************************************/ +/* */ +/* ProcessPointerEvent */ +/* */ +/* This routine merely sets the shiftKeyCount and clears the keyboard */ +/* response group timer (if necessary) on a mouse event. This is so */ +/* multiple shifts with just the mouse and shift-drags with the mouse */ +/* don't accidentally turn on StickyKeys or the Keyboard Response Group.*/ +/* */ +/************************************************************************/ +void +ProcessPointerEvent( register xEvent * xE, + register DeviceIntPtr mouse, + int count) +{ +DeviceIntPtr dev = (DeviceIntPtr)LookupKeyboardDevice(); +XkbSrvInfoPtr xkbi = dev->key->xkbInfo; +unsigned changed = 0; + + xkbi->shiftKeyCount = 0; + xkbi->lastPtrEventTime= xE->u.keyButtonPointer.time; + + if (xE->u.u.type==ButtonPress) { + changed |= XkbPointerButtonMask; + } + else if (xE->u.u.type==ButtonRelease) { + xkbi->lockedPtrButtons&= ~(1<<(xE->u.u.detail&0x7)); + changed |= XkbPointerButtonMask; + } + CoreProcessPointerEvent(xE,mouse,count); + + xkbi->state.ptr_buttons = mouse->button->state; + + /* clear any latched modifiers */ + if ( xkbi->state.latched_mods && (xE->u.u.type==ButtonRelease) ) { + unsigned changed_leds; + XkbStateRec oldState; + XkbSrvLedInfoPtr sli; + + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + oldState= xkbi->state; + XkbLatchModifiers(dev,0xFF,0x00); + + XkbComputeDerivedState(xkbi); + changed |= XkbStateChangedFlags(&oldState,&xkbi->state); + if (changed&sli->usedComponents) { + changed_leds= XkbIndicatorsToUpdate(dev,changed,False); + if (changed_leds) { + XkbEventCauseRec cause; + XkbSetCauseKey(&cause,(xE->u.u.detail&0x7),xE->u.u.type); + XkbUpdateIndicators(dev,changed_leds,True,NULL,&cause); + } + } + dev->key->state= XkbStateFieldFromRec(&xkbi->state); + } + + if (((xkbi->flags&_XkbStateNotifyInProgress)==0)&&(changed!=0)) { + xkbStateNotify sn; + sn.keycode= xE->u.u.detail; + sn.eventType= xE->u.u.type; + sn.requestMajor = sn.requestMinor = 0; + sn.changed= changed; + XkbSendStateNotify(dev,&sn); + } + +} /* ProcessPointerEvent */ + + + + |