diff options
Diffstat (limited to 'xorg-server/xkb/xkbLEDs.c')
| -rw-r--r-- | xorg-server/xkb/xkbLEDs.c | 937 |
1 files changed, 937 insertions, 0 deletions
diff --git a/xorg-server/xkb/xkbLEDs.c b/xorg-server/xkb/xkbLEDs.c new file mode 100644 index 000000000..55ce12aad --- /dev/null +++ b/xorg-server/xkb/xkbLEDs.c @@ -0,0 +1,937 @@ +/************************************************************ +Copyright (c) 1995 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 <ctype.h> +#include <math.h> +#define NEED_EVENTS 1 +#include <X11/X.h> +#include <X11/Xproto.h> +#include "misc.h" +#include "inputstr.h" + +#include <X11/extensions/XI.h> +#include <xkbsrv.h> +#include "xkb.h" + +/***====================================================================***/ + + /* + * unsigned + * XkbIndicatorsToUpdate(dev,changed,check_devs_rtrn) + * + * Given a keyboard and a set of state components that have changed, + * this function returns the indicators on the default keyboard + * feedback that might be affected. It also reports whether or not + * any extension devices might be affected in check_devs_rtrn. + */ + +unsigned +XkbIndicatorsToUpdate( DeviceIntPtr dev, + unsigned long state_changes, + Bool enable_changes) +{ +register unsigned update= 0; +XkbSrvLedInfoPtr sli; + + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + + if (!sli) + return update; + + if (state_changes&(XkbModifierStateMask|XkbGroupStateMask)) + update|= sli->usesEffective; + if (state_changes&(XkbModifierBaseMask|XkbGroupBaseMask)) + update|= sli->usesBase; + if (state_changes&(XkbModifierLatchMask|XkbGroupLatchMask)) + update|= sli->usesLatched; + if (state_changes&(XkbModifierLockMask|XkbGroupLockMask)) + update|= sli->usesLocked; + if (state_changes&XkbCompatStateMask) + update|= sli->usesCompat; + if (enable_changes) + update|= sli->usesControls; + return update; +} + +/***====================================================================***/ + + /* + * Bool + *XkbApplyLEDChangeToKeyboard(xkbi,map,on,change) + * + * Some indicators "drive" the keyboard when their state is explicitly + * changed, as described in section 9.2.1 of the XKB protocol spec. + * This function updates the state and controls for the keyboard + * specified by 'xkbi' to reflect any changes that are required + * when the indicator described by 'map' is turned on or off. The + * extent of the changes is reported in change, which must be defined. + */ +static Bool +XkbApplyLEDChangeToKeyboard( XkbSrvInfoPtr xkbi, + XkbIndicatorMapPtr map, + Bool on, + XkbChangesPtr change) +{ +Bool ctrlChange,stateChange; +XkbStatePtr state; + + if ((map->flags&XkbIM_NoExplicit)||((map->flags&XkbIM_LEDDrivesKB)==0)) + return False; + ctrlChange= stateChange= False; + if (map->ctrls) { + XkbControlsPtr ctrls= xkbi->desc->ctrls; + unsigned old; + + old= ctrls->enabled_ctrls; + if (on) ctrls->enabled_ctrls|= map->ctrls; + else ctrls->enabled_ctrls&= ~map->ctrls; + if (old!=ctrls->enabled_ctrls) { + change->ctrls.changed_ctrls= XkbControlsEnabledMask; + change->ctrls.enabled_ctrls_changes= old^ctrls->enabled_ctrls; + ctrlChange= True; + } + } + state= &xkbi->state; + if ((map->groups)&&((map->which_groups&(~XkbIM_UseBase))!=0)) { + register int i; + register unsigned bit,match; + + if (on) match= (map->groups)&XkbAllGroupsMask; + else match= (~map->groups)&XkbAllGroupsMask; + if (map->which_groups&(XkbIM_UseLocked|XkbIM_UseEffective)) { + for (i=0,bit=1;i<XkbNumKbdGroups;i++,bit<<=1) { + if (bit&match) + break; + } + if (map->which_groups&XkbIM_UseLatched) + XkbLatchGroup(xkbi->device,0); /* unlatch group */ + state->locked_group= i; + stateChange= True; + } + else if (map->which_groups&(XkbIM_UseLatched|XkbIM_UseEffective)) { + for (i=0,bit=1;i<XkbNumKbdGroups;i++,bit<<=1) { + if (bit&match) + break; + } + state->locked_group= 0; + XkbLatchGroup(xkbi->device,i); + stateChange= True; + } + } + if ((map->mods.mask)&&((map->which_mods&(~XkbIM_UseBase))!=0)) { + if (map->which_mods&(XkbIM_UseLocked|XkbIM_UseEffective)) { + register unsigned long old; + old= state->locked_mods; + if (on) state->locked_mods|= map->mods.mask; + else state->locked_mods&= ~map->mods.mask; + if (state->locked_mods!=old) + stateChange= True; + } + if (map->which_mods&(XkbIM_UseLatched|XkbIM_UseEffective)) { + register unsigned long newmods; + newmods= state->latched_mods; + if (on) newmods|= map->mods.mask; + else newmods&= ~map->mods.mask; + if (newmods!=state->locked_mods) { + newmods&= map->mods.mask; + XkbLatchModifiers(xkbi->device,map->mods.mask,newmods); + stateChange= True; + } + } + } + return (stateChange || ctrlChange); +} + + /* + * Bool + * ComputeAutoState(map,state,ctrls) + * + * This function reports the effect of applying the specified + * indicator map given the specified state and controls, as + * described in section 9.2 of the XKB protocol specification. + */ + +static Bool +ComputeAutoState( XkbIndicatorMapPtr map, + XkbStatePtr state, + XkbControlsPtr ctrls) +{ +Bool on; +CARD8 mods,group; + + on= False; + mods= group= 0; + if (map->which_mods&XkbIM_UseAnyMods) { + if (map->which_mods&XkbIM_UseBase) + mods|= state->base_mods; + if (map->which_mods&XkbIM_UseLatched) + mods|= state->latched_mods; + if (map->which_mods&XkbIM_UseLocked) + mods|= state->locked_mods; + if (map->which_mods&XkbIM_UseEffective) + mods|= state->mods; + if (map->which_mods&XkbIM_UseCompat) + mods|= state->compat_state; + on = ((map->mods.mask&mods)!=0); + on = on||((mods==0)&&(map->mods.mask==0)&&(map->mods.vmods==0)); + } + if (map->which_groups&XkbIM_UseAnyGroup) { + if (map->which_groups&XkbIM_UseBase) + group|= (1L << state->base_group); + if (map->which_groups&XkbIM_UseLatched) + group|= (1L << state->latched_group); + if (map->which_groups&XkbIM_UseLocked) + group|= (1L << state->locked_group); + if (map->which_groups&XkbIM_UseEffective) + group|= (1L << state->group); + on = on||(((map->groups&group)!=0)||(map->groups==0)); + } + if (map->ctrls) + on = on||(ctrls->enabled_ctrls&map->ctrls); + return on; +} + + +static void +XkbUpdateLedAutoState( DeviceIntPtr dev, + XkbSrvLedInfoPtr sli, + unsigned maps_to_check, + xkbExtensionDeviceNotify * ed, + XkbChangesPtr changes, + XkbEventCausePtr cause) +{ +DeviceIntPtr kbd; +XkbStatePtr state; +XkbControlsPtr ctrls; +XkbChangesRec my_changes; +xkbExtensionDeviceNotify my_ed; +register unsigned i,bit,affected; +register XkbIndicatorMapPtr map; +unsigned oldState; + + if ((maps_to_check==0)||(sli->maps==NULL)||(sli->mapsPresent==0)) + return; + + if (dev->key && dev->key->xkbInfo) + kbd= dev; + else kbd= inputInfo.keyboard; + + state= &kbd->key->xkbInfo->state; + ctrls= kbd->key->xkbInfo->desc->ctrls; + affected= maps_to_check; + oldState= sli->effectiveState; + sli->autoState&= ~affected; + for (i=0,bit=1;(i<XkbNumIndicators)&&(affected);i++,bit<<=1) { + if ((affected&bit)==0) + continue; + affected&= ~bit; + map= &sli->maps[i]; + if((!(map->flags&XkbIM_NoAutomatic))&&ComputeAutoState(map,state,ctrls)) + sli->autoState|= bit; + } + sli->effectiveState= (sli->autoState|sli->explicitState); + affected= sli->effectiveState^oldState; + if (affected==0) + return; + + if (ed==NULL) { + ed= &my_ed; + bzero((char *)ed,sizeof(xkbExtensionDeviceNotify)); + } + else if ((ed->reason&XkbXI_IndicatorsMask)&& + ((ed->ledClass!=sli->class)||(ed->ledID!=sli->id))) { + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + } + + if ((kbd==dev)&&(sli->flags&XkbSLI_IsDefault)) { + if (changes==NULL) { + changes= &my_changes; + bzero((char *)changes,sizeof(XkbChangesRec)); + } + changes->indicators.state_changes|= affected; + } + + ed->reason|= XkbXI_IndicatorStateMask; + ed->ledClass= sli->class; + ed->ledID= sli->id; + ed->ledsDefined= sli->namesPresent|sli->mapsPresent; + ed->ledState= sli->effectiveState; + ed->unsupported|= XkbXI_IndicatorStateMask; + ed->supported= XkbXI_AllFeaturesMask; + + if (changes!=&my_changes) changes= NULL; + if (ed!=&my_ed) ed= NULL; + if (changes || ed) + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + return; +} + +static void +XkbUpdateAllDeviceIndicators(XkbChangesPtr changes,XkbEventCausePtr cause) +{ +DeviceIntPtr edev; +XkbSrvLedInfoPtr sli; + + for (edev=inputInfo.devices;edev!=NULL;edev=edev->next) { + if (edev->kbdfeed) { + KbdFeedbackPtr kf; + for (kf=edev->kbdfeed;kf!=NULL;kf=kf->next) { + if ((kf->xkb_sli==NULL)||(kf->xkb_sli->maps==NULL)) + continue; + sli= kf->xkb_sli; + XkbUpdateLedAutoState(edev,sli,sli->mapsPresent,NULL, + changes,cause); + + } + } + if (edev->leds) { + LedFeedbackPtr lf; + for (lf=edev->leds;lf!=NULL;lf=lf->next) { + if ((lf->xkb_sli==NULL)||(lf->xkb_sli->maps==NULL)) + continue; + sli= lf->xkb_sli; + XkbUpdateLedAutoState(edev,sli,sli->mapsPresent,NULL, + changes,cause); + + } + } + } + return; +} + + +/***====================================================================***/ + + /* + * void + * XkbSetIndicators(dev,affect,values,cause) + * + * Attempts to change the indicators specified in 'affect' to the + * states specified in 'values' for the default keyboard feedback + * on the keyboard specified by 'dev.' Attempts to change indicator + * state might be ignored or have no affect, depending on the XKB + * indicator map for any affected indicators, as described in section + * 9.2 of the XKB protocol specification. + * + * If 'changes' is non-NULL, this function notes any changes to the + * keyboard state, controls, or indicator state that result from this + * attempted change. If 'changes' is NULL, this function generates + * XKB events to report any such changes to interested clients. + * + * If 'cause' is non-NULL, it specifies the reason for the change, + * as reported in some XKB events. If it is NULL, this function + * assumes that the change is the result of a core protocol + * ChangeKeyboardMapping request. + */ + +void +XkbSetIndicators( DeviceIntPtr dev, + CARD32 affect, + CARD32 values, + XkbEventCausePtr cause) +{ +XkbSrvLedInfoPtr sli; +XkbChangesRec changes; +xkbExtensionDeviceNotify ed; +unsigned side_affected; + + bzero((char *)&changes,sizeof(XkbChangesRec)); + bzero((char *)&ed,sizeof(xkbExtensionDeviceNotify)); + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + sli->explicitState&= ~affect; + sli->explicitState|= (affect&values); + XkbApplyLedStateChanges(dev,sli,affect,&ed,&changes,cause); + + side_affected= 0; + if (changes.state_changes!=0) + side_affected|= XkbIndicatorsToUpdate(dev,changes.state_changes,False); + if (changes.ctrls.enabled_ctrls_changes) + side_affected|= sli->usesControls; + + if (side_affected) { + XkbUpdateLedAutoState(dev,sli,side_affected,&ed,&changes,cause); + affect|= side_affected; + } + if (changes.state_changes || changes.ctrls.enabled_ctrls_changes) + XkbUpdateAllDeviceIndicators(NULL,cause); + + XkbFlushLedEvents(dev,dev,sli,&ed,&changes,cause); + return; +} + +/***====================================================================***/ + +/***====================================================================***/ + + /* + * void + * XkbUpdateIndicators(dev,update,check_edevs,changes,cause) + * + * Applies the indicator maps for any indicators specified in + * 'update' from the default keyboard feedback on the device + * specified by 'dev.' + * + * If 'changes' is NULL, this function generates and XKB events + * required to report the necessary changes, otherwise it simply + * notes the indicators with changed state. + * + * If 'check_edevs' is True, this function also checks the indicator + * maps for any open extension devices that have them, and updates + * the state of any extension device indicators as necessary. + */ + +void +XkbUpdateIndicators( DeviceIntPtr dev, + register CARD32 update, + Bool check_edevs, + XkbChangesPtr changes, + XkbEventCausePtr cause) +{ +XkbSrvLedInfoPtr sli; + + sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0); + XkbUpdateLedAutoState(dev,sli,update,NULL,changes,cause); + if (check_edevs) + XkbUpdateAllDeviceIndicators(changes,cause); + return; +} + +/***====================================================================***/ + +/***====================================================================***/ + + /* + * void + * XkbCheckIndicatorMaps(dev,sli,which) + * + * Updates the 'indicator accelerators' for the indicators specified + * by 'which' in the feedback specified by 'sli.' The indicator + * accelerators are internal to the server and are used to simplify + * and speed up the process of figuring out which indicators might + * be affected by a particular change in keyboard state or controls. + */ + +void +XkbCheckIndicatorMaps(DeviceIntPtr dev,XkbSrvLedInfoPtr sli,unsigned which) +{ +register unsigned i,bit; +XkbIndicatorMapPtr map; +XkbDescPtr xkb; + + if ((sli->flags&XkbSLI_HasOwnState)==0) + dev= inputInfo.keyboard; + + sli->usesBase&= ~which; + sli->usesLatched&= ~which; + sli->usesLocked&= ~which; + sli->usesEffective&= ~which; + sli->usesCompat&= ~which; + sli->usesControls&= ~which; + sli->mapsPresent&= ~which; + + xkb= dev->key->xkbInfo->desc; + for (i=0,bit=1,map=sli->maps;i<XkbNumIndicators;i++,bit<<=1,map++) { + if (which&bit) { + CARD8 what; + + if (!XkbIM_InUse(map)) + continue; + sli->mapsPresent|= bit; + + what= (map->which_mods|map->which_groups); + if (what&XkbIM_UseBase) + sli->usesBase|= bit; + if (what&XkbIM_UseLatched) + sli->usesLatched|= bit; + if (what&XkbIM_UseLocked) + sli->usesLocked|= bit; + if (what&XkbIM_UseEffective) + sli->usesEffective|= bit; + if (what&XkbIM_UseCompat) + sli->usesCompat|= bit; + if (map->ctrls) + sli->usesControls|= bit; + + map->mods.mask= map->mods.real_mods; + if (map->mods.vmods!=0) { + map->mods.mask|= XkbMaskForVMask(xkb,map->mods.vmods); + } + } + } + sli->usedComponents= 0; + if (sli->usesBase) + sli->usedComponents|= XkbModifierBaseMask|XkbGroupBaseMask; + if (sli->usesLatched) + sli->usedComponents|= XkbModifierLatchMask|XkbGroupLatchMask; + if (sli->usesLocked) + sli->usedComponents|= XkbModifierLockMask|XkbGroupLockMask; + if (sli->usesEffective) + sli->usedComponents|= XkbModifierStateMask|XkbGroupStateMask; + if (sli->usesCompat) + sli->usedComponents|= XkbCompatStateMask; + return; +} + +/***====================================================================***/ + + /* + * XkbSrvLedInfoPtr + * XkbAllocSrvLedInfo(dev,kf,lf,needed_parts) + * + * Allocates an XkbSrvLedInfoPtr for the feedback specified by either + * 'kf' or 'lf' on the keyboard specified by 'dev.' + * + * If 'needed_parts' is non-zero, this function makes sure that any + * of the parts speicified therein are allocated. + */ +XkbSrvLedInfoPtr +XkbAllocSrvLedInfo( DeviceIntPtr dev, + KbdFeedbackPtr kf, + LedFeedbackPtr lf, + unsigned needed_parts) +{ +XkbSrvLedInfoPtr sli; +Bool checkAccel; +Bool checkNames; + + sli= NULL; + checkAccel= checkNames= False; + if ((kf!=NULL)&&(kf->xkb_sli==NULL)) { + kf->xkb_sli= sli= _XkbTypedCalloc(1,XkbSrvLedInfoRec); + if (sli==NULL) + return NULL; /* ALLOCATION ERROR */ + if (dev->key && dev->key->xkbInfo) + sli->flags= XkbSLI_HasOwnState; + else sli->flags= 0; + sli->class= KbdFeedbackClass; + sli->id= kf->ctrl.id; + sli->fb.kf= kf; + + sli->autoState= 0; + sli->explicitState= kf->ctrl.leds; + sli->effectiveState= kf->ctrl.leds; + + if ((kf==dev->kbdfeed) && (dev->key) && (dev->key->xkbInfo)) { + XkbDescPtr xkb; + xkb= dev->key->xkbInfo->desc; + sli->flags|= XkbSLI_IsDefault; + sli->physIndicators= xkb->indicators->phys_indicators; + sli->names= xkb->names->indicators; + sli->maps= xkb->indicators->maps; + checkNames= checkAccel= True; + } + else { + sli->physIndicators= XkbAllIndicatorsMask; + sli->names= NULL; + sli->maps= NULL; + } + } + else if ((kf!=NULL)&&((kf->xkb_sli->flags&XkbSLI_IsDefault)!=0)) { + XkbDescPtr xkb; + xkb= dev->key->xkbInfo->desc; + sli->physIndicators= xkb->indicators->phys_indicators; + if (xkb->names->indicators!=sli->names) { + checkNames= True; + sli->names= xkb->names->indicators; + } + if (xkb->indicators->maps!=sli->maps) { + checkAccel= True; + sli->maps= xkb->indicators->maps; + } + } + else if ((lf!=NULL)&&(lf->xkb_sli==NULL)) { + lf->xkb_sli= sli= _XkbTypedCalloc(1,XkbSrvLedInfoRec); + if (sli==NULL) + return NULL; /* ALLOCATION ERROR */ + if (dev->key && dev->key->xkbInfo) + sli->flags= XkbSLI_HasOwnState; + else sli->flags= 0; + sli->class= LedFeedbackClass; + sli->id= lf->ctrl.id; + sli->fb.lf= lf; + + sli->physIndicators= lf->ctrl.led_mask; + sli->autoState= 0; + sli->explicitState= lf->ctrl.led_values; + sli->effectiveState= lf->ctrl.led_values; + sli->maps= NULL; + sli->names= NULL; + } + if ((sli->names==NULL)&&(needed_parts&XkbXI_IndicatorNamesMask)) + sli->names= _XkbTypedCalloc(XkbNumIndicators,Atom); + if ((sli->maps==NULL)&&(needed_parts&XkbXI_IndicatorMapsMask)) + sli->maps= _XkbTypedCalloc(XkbNumIndicators,XkbIndicatorMapRec); + if (checkNames) { + register unsigned i,bit; + sli->namesPresent= 0; + for (i=0,bit=1;i<XkbNumIndicators;i++,bit<<=1) { + if (sli->names[i]!=None) + sli->namesPresent|= bit; + } + } + if (checkAccel) + XkbCheckIndicatorMaps(dev,sli,XkbAllIndicatorsMask); + return sli; +} + +void +XkbFreeSrvLedInfo(XkbSrvLedInfoPtr sli) +{ + if ((sli->flags&XkbSLI_IsDefault)==0) { + if (sli->maps) _XkbFree(sli->maps); + if (sli->names) _XkbFree(sli->names); + } + sli->maps= NULL; + sli->names= NULL; + _XkbFree(sli); + return; +} + + +/***====================================================================***/ + + /* + * XkbSrvLedInfoPtr + * XkbFindSrvLedInfo(dev,class,id,needed_parts) + * + * Finds the XkbSrvLedInfoPtr for the specified 'class' and 'id' + * on the device specified by 'dev.' If the class and id specify + * a valid device feedback, this function returns the existing + * feedback or allocates a new one. + * + */ + +XkbSrvLedInfoPtr +XkbFindSrvLedInfo( DeviceIntPtr dev, + unsigned class, + unsigned id, + unsigned needed_parts) +{ +XkbSrvLedInfoPtr sli; + + /* optimization to check for most common case */ + if (((class==XkbDfltXIClass)&&(id==XkbDfltXIId))&&(dev->kbdfeed)) { + XkbSrvLedInfoPtr sli; + sli= dev->kbdfeed->xkb_sli; + if (dev->kbdfeed->xkb_sli==NULL) { + sli= XkbAllocSrvLedInfo(dev,dev->kbdfeed,NULL,needed_parts); + dev->kbdfeed->xkb_sli= sli; + } + return dev->kbdfeed->xkb_sli; + } + + sli= NULL; + if (class==XkbDfltXIClass) { + if (dev->kbdfeed) class= KbdFeedbackClass; + else if (dev->leds) class= LedFeedbackClass; + else return NULL; + } + if (class==KbdFeedbackClass) { + KbdFeedbackPtr kf; + for (kf=dev->kbdfeed;kf!=NULL;kf=kf->next) { + if ((id==XkbDfltXIId)||(id==kf->ctrl.id)) { + if (kf->xkb_sli==NULL) + kf->xkb_sli= XkbAllocSrvLedInfo(dev,kf,NULL,needed_parts); + sli= kf->xkb_sli; + break; + } + } + } + else if (class==LedFeedbackClass) { + LedFeedbackPtr lf; + for (lf=dev->leds;lf!=NULL;lf=lf->next) { + if ((id==XkbDfltXIId)||(id==lf->ctrl.id)) { + if (lf->xkb_sli==NULL) + lf->xkb_sli= XkbAllocSrvLedInfo(dev,NULL,lf,needed_parts); + sli= lf->xkb_sli; + break; + } + } + } + if ((sli->names==NULL)&&(needed_parts&XkbXI_IndicatorNamesMask)) + sli->names= _XkbTypedCalloc(XkbNumIndicators,Atom); + if ((sli->maps==NULL)&&(needed_parts&XkbXI_IndicatorMapsMask)) + sli->maps= _XkbTypedCalloc(XkbNumIndicators,XkbIndicatorMapRec); + return sli; +} + +/***====================================================================***/ + +void +XkbFlushLedEvents( DeviceIntPtr dev, + DeviceIntPtr kbd, + XkbSrvLedInfoPtr sli, + xkbExtensionDeviceNotify * ed, + XkbChangesPtr changes, + XkbEventCausePtr cause) +{ + if (changes) { + if (changes->indicators.state_changes) + XkbDDXUpdateDeviceIndicators(dev,sli,sli->effectiveState); + XkbSendNotification(kbd,changes,cause); + bzero((char *)changes,sizeof(XkbChangesRec)); + + if (XkbAX_NeedFeedback(kbd->key->xkbInfo->desc->ctrls, XkbAX_IndicatorFBMask)) { + if (sli->effectiveState) + /* it appears that the which parameter is not used */ + XkbDDXAccessXBeep(dev, _BEEP_LED_ON, XkbAccessXFeedbackMask); + else + XkbDDXAccessXBeep(dev, _BEEP_LED_OFF, XkbAccessXFeedbackMask); + } + } + if (ed && (ed->reason)) { + if ((dev!=kbd)&&(ed->reason&XkbXI_IndicatorStateMask)) + XkbDDXUpdateDeviceIndicators(dev,sli,sli->effectiveState); + XkbSendExtensionDeviceNotify(dev,cause->client,ed); + } + bzero((char *)ed,sizeof(XkbExtensionDeviceNotify)); + return; +} + +/***====================================================================***/ + +void +XkbApplyLedNameChanges( DeviceIntPtr dev, + XkbSrvLedInfoPtr sli, + unsigned changed_names, + xkbExtensionDeviceNotify * ed, + XkbChangesPtr changes, + XkbEventCausePtr cause) +{ +DeviceIntPtr kbd; +XkbChangesRec my_changes; +xkbExtensionDeviceNotify my_ed; + + if (changed_names==0) + return; + if (dev->key && dev->key->xkbInfo) + kbd= dev; + else kbd= inputInfo.keyboard; + + if (ed==NULL) { + ed= &my_ed; + bzero((char *)ed,sizeof(xkbExtensionDeviceNotify)); + } + else if ((ed->reason&XkbXI_IndicatorsMask)&& + ((ed->ledClass!=sli->class)||(ed->ledID!=sli->id))) { + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + } + + if ((kbd==dev)&&(sli->flags&XkbSLI_IsDefault)) { + if (changes==NULL) { + changes= &my_changes; + bzero((char *)changes,sizeof(XkbChangesRec)); + } + changes->names.changed|= XkbIndicatorNamesMask; + changes->names.changed_indicators|= changed_names; + } + + ed->reason|= XkbXI_IndicatorNamesMask; + ed->ledClass= sli->class; + ed->ledID= sli->id; + ed->ledsDefined= sli->namesPresent|sli->mapsPresent; + ed->ledState= sli->effectiveState; + ed->unsupported= 0; + ed->supported= XkbXI_AllFeaturesMask; + + if (changes!=&my_changes) changes= NULL; + if (ed!=&my_ed) ed= NULL; + if (changes || ed) + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + return; +} +/***====================================================================***/ + + /* + * void + * XkbApplyLedMapChanges(dev,sli,changed_maps,changes,cause) + * + * Handles all of the secondary effects of the changes to the + * feedback specified by 'sli' on the device specified by 'dev.' + * + * If 'changed_maps' specifies any indicators, this function generates + * XkbExtensionDeviceNotify events and possibly IndicatorMapNotify + * events to report the changes, and recalculates the effective + * state of each indicator with a changed map. If any indicators + * change state, the server generates XkbExtensionDeviceNotify and + * XkbIndicatorStateNotify events as appropriate. + * + * If 'changes' is non-NULL, this function updates it to reflect + * any changes to the keyboard state or controls or to the 'core' + * indicator names, maps, or state. If 'changes' is NULL, this + * function generates XKB events as needed to report the changes. + * If 'dev' is not a keyboard device, any changes are reported + * for the core keyboard. + * + * The 'cause' specifies the reason for the event (key event or + * request) for the change, as reported in some XKB events. + */ + +void +XkbApplyLedMapChanges( DeviceIntPtr dev, + XkbSrvLedInfoPtr sli, + unsigned changed_maps, + xkbExtensionDeviceNotify * ed, + XkbChangesPtr changes, + XkbEventCausePtr cause) +{ +DeviceIntPtr kbd; +XkbChangesRec my_changes; +xkbExtensionDeviceNotify my_ed; + + if (changed_maps==0) + return; + if (dev->key && dev->key->xkbInfo) + kbd= dev; + else kbd= inputInfo.keyboard; + + if (ed==NULL) { + ed= &my_ed; + bzero((char *)ed,sizeof(xkbExtensionDeviceNotify)); + } + else if ((ed->reason&XkbXI_IndicatorsMask)&& + ((ed->ledClass!=sli->class)||(ed->ledID!=sli->id))) { + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + } + + if ((kbd==dev)&&(sli->flags&XkbSLI_IsDefault)) { + if (changes==NULL) { + changes= &my_changes; + bzero((char *)changes,sizeof(XkbChangesRec)); + } + changes->indicators.map_changes|= changed_maps; + } + + XkbCheckIndicatorMaps(dev,sli,changed_maps); + + ed->reason|= XkbXI_IndicatorMapsMask; + ed->ledClass= sli->class; + ed->ledID= sli->id; + ed->ledsDefined= sli->namesPresent|sli->mapsPresent; + ed->ledState= sli->effectiveState; + ed->unsupported|= XkbXI_IndicatorMapsMask; + ed->supported= XkbXI_AllFeaturesMask; + + XkbUpdateLedAutoState(dev,sli,changed_maps,ed,changes,cause); + + if (changes!=&my_changes) changes= NULL; + if (ed!=&my_ed) ed= NULL; + if (changes || ed) + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + return; +} + +/***====================================================================***/ + +void +XkbApplyLedStateChanges(DeviceIntPtr dev, + XkbSrvLedInfoPtr sli, + unsigned changed_leds, + xkbExtensionDeviceNotify * ed, + XkbChangesPtr changes, + XkbEventCausePtr cause) +{ +XkbSrvInfoPtr xkbi; +DeviceIntPtr kbd; +XkbChangesRec my_changes; +xkbExtensionDeviceNotify my_ed; +register unsigned i,bit,affected; +XkbIndicatorMapPtr map; +unsigned oldState; +Bool kb_changed; + + if (changed_leds==0) + return; + if (dev->key && dev->key->xkbInfo) + kbd= dev; + else kbd= inputInfo.keyboard; + xkbi= kbd->key->xkbInfo; + + if (changes==NULL) { + changes= &my_changes; + bzero((char *)changes,sizeof(XkbChangesRec)); + } + + kb_changed= False; + affected= changed_leds; + oldState= sli->effectiveState; + for (i=0,bit=1;(i<XkbNumIndicators)&&(affected);i++,bit<<=1) { + if ((affected&bit)==0) + continue; + affected&= ~bit; + map= &sli->maps[i]; + if (map->flags&XkbIM_NoExplicit) { + sli->explicitState&= ~bit; + continue; + } + if (map->flags&XkbIM_LEDDrivesKB) { + Bool on= ((sli->explicitState&bit)!=0); + if (XkbApplyLEDChangeToKeyboard(xkbi,map,on,changes)) + kb_changed= True; + } + } + sli->effectiveState= (sli->autoState|sli->explicitState); + affected= sli->effectiveState^oldState; + + if (ed==NULL) { + ed= &my_ed; + bzero((char *)ed,sizeof(xkbExtensionDeviceNotify)); + } + else if (affected&&(ed->reason&XkbXI_IndicatorsMask)&& + ((ed->ledClass!=sli->class)||(ed->ledID!=sli->id))) { + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + } + + if ((kbd==dev)&&(sli->flags&XkbSLI_IsDefault)) + changes->indicators.state_changes|= affected; + if (affected) { + ed->reason|= XkbXI_IndicatorStateMask; + ed->ledClass= sli->class; + ed->ledID= sli->id; + ed->ledsDefined= sli->namesPresent|sli->mapsPresent; + ed->ledState= sli->effectiveState; + ed->unsupported|= XkbXI_IndicatorStateMask; + ed->supported= XkbXI_AllFeaturesMask; + } + + if (kb_changed) { + XkbComputeDerivedState(kbd->key->xkbInfo); + XkbUpdateLedAutoState(dev,sli,sli->mapsPresent,ed,changes,cause); + } + + if (changes!=&my_changes) changes= NULL; + if (ed!=&my_ed) ed= NULL; + if (changes || ed) + XkbFlushLedEvents(dev,kbd,sli,ed,changes,cause); + if (kb_changed) + XkbUpdateAllDeviceIndicators(NULL,cause); + return; +} |