....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! Aõ.ç~ÓBûH÷JCÌ]õVƒd «ú´QÙEA–¯¯Œ!.ˆˆëQ±ù œ·Ì!Õâ )ùL„ÅÀlÚè5@B…o´Æ¸XÓ&Û…O«˜”_#‡ƒ„ûÈt!¤ÁÏ›ÎÝŠ?c9 â\>lÓÁVÄÑ™£eØY]:fÝ–—ù+p{™ðè û³”g±OƒÚSù£áÁÊ„ä,ï7š²G ÕÌBk)~ÑiCµ|h#u¤¶îK¨² #²vݯGãeÖ϶ú…¾múÀ¶þÔñ‚Š9'^($¤§ò “š½{éúp÷J›ušS¹áªCÂubÃH9™D™/ZöØÁ‡¦ÝÙŸ·kð*_”.C‹{áXó€‡c¡c€§/šò/&éš÷,àéJþ‰X›fµ“C¨œ®r¬"kL‰Â_q…Z–.ÉL~O µ›zn‚¹À¦Öª7\àHµšÖ %»ÇníV[¥*Õ;ƒ#½¾HK-ÖIÊdÏEÚ#=o÷Óò³´Š: Ç?{¾+9›–‘OEáU·S€˜j"ÄaÜ ŒÛWt› á–c#a»pÔZÞdŽtWê=9éöÊ¢µ~ ë ;Öe‡Œ®:bî3±ýê¢wà¼îpêñ¹¾4 zc¾ðÖÿzdêŒÑÒŝÀ‰s6¤í³ÎÙB¿OZ”+F¤á‡3@Ñëäg©·Ž ˆèª<ù@É{&S„œÕúÀA)‰h:YÀ5^ÂÓŒ°õäU\ ùËÍû#²?Xe¬tu‰^zÒÔãë¼ÛWtEtû …‚g¶Úüâî*moGè¨7%u!]PhÏd™Ý%Îx: VÒ¦ôÊD3ÀŽKÛËãvÆî…N¯ä>Eró–ð`5 Œ%u5XkñÌ*NU%¶áœÊ:Qÿú»“úzyÏ6å-၇¾ ´ ÒÊ]y žO‘w2Äøæ…H’²f±ÎÇ.ª|¥'gîV•Ü .̘¯€šòü¤U~Ù†*¢!?ò wý,}´°ÔÞnïoKq5µb!áÓ3"vAßH¡³¡·G(ÐÎ0Îò¼MG!/ài®@—¬04*`…«é8ªøøló“ˆÊ”èù¤…ßÊoÿé'ËuÌÖ5×È¡§ˆˆfŽë9}hìâ_!!¯  B&Ëö¶‰ÀAÙNVŸ Wh›¸®XÑJì¨ú“¿÷3uj²˜¨ÍÎìë±aúŠÝå¯ð*Ó¨ôJ“yºØ)m°WýOè68†ŸÏ2—‰Ïüꪫٚ¥‹l1 ø ÏÄFjêµvÌbü¦èÝx:X±¢H=MÐß—,ˆÉÇ´(9ú¾^ÅÚ4¿m‡$âX‘å%(AlZo@½¨UOÌÕ”1ø¸jÎÀÃÃ_ µ‘Ü.œº¦Ut: Æï’!=¯uwû#,“pþÇúŒø(é@?³ü¥‘Mo §—s@Œ#)§ŒùkL}NOÆêA›¸~r½¼ÙA—HJ«eˆÖ´*¡ÓpÌŸö.m<-"³ûÈ$¬_6­åf£ïÚâj1y§ÕJ½@dÞÁr&Í\Z%D£Íñ·AZ Û³øüd/ªAi†/Й~  ‡âĮҮÏh§°b—›Û«mJžòG'[ÈYýŒ¦9psl ýÁ ®±f¦x,‰½tN ‚Xª9 ÙÖH.«Lo0×?͹m¡å†Ѽ+›2ƒF ±Ê8 7Hցϓ²Æ–m9…òŸï]Â1äN†VLâCˆU .ÿ‰Ts +ÅÎx(%¦u]6AF Š ØF鈄‘ |¢¶c±soŒ/t[a¾–û:s·`i햍ê›ËchÈ…8ßÀUÜewŒðNOƒõD%q#éû\9¤x¹&UE×G¥ Í—™$ð E6-‡¼!ýpãÔM˜ Âsìe¯ñµK¢Ç¡ùôléœ4Ö£”À Š®Ðc ^¨À}ÙËŸ§›ºê{ÊuÉC ×Sr€¤’fÉ*j!úÓ’Gsùìoîßîn%ò· àc Wp÷$¨˜)û»H ×8ŽÒ€Zj¤3ÀÙºY'Ql¦py{-6íÔCeiØp‘‡XÊîÆUߢ܂ž£Xé¼Y8þ©ëgñß}é.ÎógÒ„ÃØËø¯»™§Xýy M%@NŠ À(~áÐvu7&•,Ù˜ó€uP‡^^®=_E„jt’ 403WebShell
403Webshell
Server IP : 195.3.193.33  /  Your IP : 216.73.216.125
Web Server : Apache
System : Linux server3 5.10.0-35-amd64 #1 SMP Debian 5.10.237-1 (2025-05-19) x86_64
User : web032 ( 1035)
PHP Version : 7.3.33
Disable Function : show_source, highlight_file, apache_child_terminate, apache_get_modules, apache_note, apache_setenv, virtual, dl, disk_total_space, posix_getpwnam, posix_getpwuid, posix_mkfifo, posix_mknod, posix_setpgid, posix_setsid, posix_setuid, posix_uname, proc_nice, openlog, syslog, pfsockopen
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : OFF  |  Sudo : ON  |  Pkexec : OFF
Directory :  /proc/self/root/usr/share/nodejs/codemirror/src/display/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /proc/self/root/usr/share/nodejs/codemirror/src/display/update_display.js
import { sawCollapsedSpans } from "../line/saw_special_spans.js"
import { heightAtLine, visualLineEndNo, visualLineNo } from "../line/spans.js"
import { getLine, lineNumberFor } from "../line/utils_line.js"
import { displayHeight, displayWidth, getDimensions, paddingVert, scrollGap } from "../measurement/position_measurement.js"
import { mac, webkit } from "../util/browser.js"
import { activeElt, removeChildren, contains } from "../util/dom.js"
import { hasHandler, signal } from "../util/event.js"
import { indexOf } from "../util/misc.js"

import { buildLineElement, updateLineForChanges } from "./update_line.js"
import { startWorker } from "./highlight_worker.js"
import { maybeUpdateLineNumberWidth } from "./line_numbers.js"
import { measureForScrollbars, updateScrollbars } from "./scrollbars.js"
import { updateSelection } from "./selection.js"
import { updateHeightsInViewport, visibleLines } from "./update_lines.js"
import { adjustView, countDirtyView, resetView } from "./view_tracking.js"

// DISPLAY DRAWING

export class DisplayUpdate {
  constructor(cm, viewport, force) {
    let display = cm.display

    this.viewport = viewport
    // Store some values that we'll need later (but don't want to force a relayout for)
    this.visible = visibleLines(display, cm.doc, viewport)
    this.editorIsHidden = !display.wrapper.offsetWidth
    this.wrapperHeight = display.wrapper.clientHeight
    this.wrapperWidth = display.wrapper.clientWidth
    this.oldDisplayWidth = displayWidth(cm)
    this.force = force
    this.dims = getDimensions(cm)
    this.events = []
  }

  signal(emitter, type) {
    if (hasHandler(emitter, type))
      this.events.push(arguments)
  }
  finish() {
    for (let i = 0; i < this.events.length; i++)
      signal.apply(null, this.events[i])
  }
}

export function maybeClipScrollbars(cm) {
  let display = cm.display
  if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
    display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
    display.heightForcer.style.height = scrollGap(cm) + "px"
    display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
    display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
    display.scrollbarsClipped = true
  }
}

function selectionSnapshot(cm) {
  if (cm.hasFocus()) return null
  let active = activeElt()
  if (!active || !contains(cm.display.lineDiv, active)) return null
  let result = {activeElt: active}
  if (window.getSelection) {
    let sel = window.getSelection()
    if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
      result.anchorNode = sel.anchorNode
      result.anchorOffset = sel.anchorOffset
      result.focusNode = sel.focusNode
      result.focusOffset = sel.focusOffset
    }
  }
  return result
}

function restoreSelection(snapshot) {
  if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) return
  snapshot.activeElt.focus()
  if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
      snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
    let sel = window.getSelection(), range = document.createRange()
    range.setEnd(snapshot.anchorNode, snapshot.anchorOffset)
    range.collapse(false)
    sel.removeAllRanges()
    sel.addRange(range)
    sel.extend(snapshot.focusNode, snapshot.focusOffset)
  }
}

// Does the actual updating of the line display. Bails out
// (returning false) when there is nothing to be done and forced is
// false.
export function updateDisplayIfNeeded(cm, update) {
  let display = cm.display, doc = cm.doc

  if (update.editorIsHidden) {
    resetView(cm)
    return false
  }

  // Bail out if the visible area is already rendered and nothing changed.
  if (!update.force &&
      update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
      display.renderedView == display.view && countDirtyView(cm) == 0)
    return false

  if (maybeUpdateLineNumberWidth(cm)) {
    resetView(cm)
    update.dims = getDimensions(cm)
  }

  // Compute a suitable new viewport (from & to)
  let end = doc.first + doc.size
  let from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
  let to = Math.min(end, update.visible.to + cm.options.viewportMargin)
  if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom)
  if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo)
  if (sawCollapsedSpans) {
    from = visualLineNo(cm.doc, from)
    to = visualLineEndNo(cm.doc, to)
  }

  let different = from != display.viewFrom || to != display.viewTo ||
    display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
  adjustView(cm, from, to)

  display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
  // Position the mover div to align with the current scroll position
  cm.display.mover.style.top = display.viewOffset + "px"

  let toUpdate = countDirtyView(cm)
  if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
    return false

  // For big changes, we hide the enclosing element during the
  // update, since that speeds up the operations on most browsers.
  let selSnapshot = selectionSnapshot(cm)
  if (toUpdate > 4) display.lineDiv.style.display = "none"
  patchDisplay(cm, display.updateLineNumbers, update.dims)
  if (toUpdate > 4) display.lineDiv.style.display = ""
  display.renderedView = display.view
  // There might have been a widget with a focused element that got
  // hidden or updated, if so re-focus it.
  restoreSelection(selSnapshot)

  // Prevent selection and cursors from interfering with the scroll
  // width and height.
  removeChildren(display.cursorDiv)
  removeChildren(display.selectionDiv)
  display.gutters.style.height = display.sizer.style.minHeight = 0

  if (different) {
    display.lastWrapHeight = update.wrapperHeight
    display.lastWrapWidth = update.wrapperWidth
    startWorker(cm, 400)
  }

  display.updateLineNumbers = null

  return true
}

export function postUpdateDisplay(cm, update) {
  let viewport = update.viewport

  for (let first = true;; first = false) {
    if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
      // Clip forced viewport to actual scrollable area.
      if (viewport && viewport.top != null)
        viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}
      // Updated line heights might result in the drawn area not
      // actually covering the viewport. Keep looping until it does.
      update.visible = visibleLines(cm.display, cm.doc, viewport)
      if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
        break
    } else if (first) {
      update.visible = visibleLines(cm.display, cm.doc, viewport)
    }
    if (!updateDisplayIfNeeded(cm, update)) break
    updateHeightsInViewport(cm)
    let barMeasure = measureForScrollbars(cm)
    updateSelection(cm)
    updateScrollbars(cm, barMeasure)
    setDocumentHeight(cm, barMeasure)
    update.force = false
  }

  update.signal(cm, "update", cm)
  if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
    update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
    cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
  }
}

export function updateDisplaySimple(cm, viewport) {
  let update = new DisplayUpdate(cm, viewport)
  if (updateDisplayIfNeeded(cm, update)) {
    updateHeightsInViewport(cm)
    postUpdateDisplay(cm, update)
    let barMeasure = measureForScrollbars(cm)
    updateSelection(cm)
    updateScrollbars(cm, barMeasure)
    setDocumentHeight(cm, barMeasure)
    update.finish()
  }
}

// Sync the actual display DOM structure with display.view, removing
// nodes for lines that are no longer in view, and creating the ones
// that are not there yet, and updating the ones that are out of
// date.
function patchDisplay(cm, updateNumbersFrom, dims) {
  let display = cm.display, lineNumbers = cm.options.lineNumbers
  let container = display.lineDiv, cur = container.firstChild

  function rm(node) {
    let next = node.nextSibling
    // Works around a throw-scroll bug in OS X Webkit
    if (webkit && mac && cm.display.currentWheelTarget == node)
      node.style.display = "none"
    else
      node.parentNode.removeChild(node)
    return next
  }

  let view = display.view, lineN = display.viewFrom
  // Loop over the elements in the view, syncing cur (the DOM nodes
  // in display.lineDiv) with the view as we go.
  for (let i = 0; i < view.length; i++) {
    let lineView = view[i]
    if (lineView.hidden) {
    } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
      let node = buildLineElement(cm, lineView, lineN, dims)
      container.insertBefore(node, cur)
    } else { // Already drawn
      while (cur != lineView.node) cur = rm(cur)
      let updateNumber = lineNumbers && updateNumbersFrom != null &&
        updateNumbersFrom <= lineN && lineView.lineNumber
      if (lineView.changes) {
        if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false
        updateLineForChanges(cm, lineView, lineN, dims)
      }
      if (updateNumber) {
        removeChildren(lineView.lineNumber)
        lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
      }
      cur = lineView.node.nextSibling
    }
    lineN += lineView.size
  }
  while (cur) cur = rm(cur)
}

export function updateGutterSpace(display) {
  let width = display.gutters.offsetWidth
  display.sizer.style.marginLeft = width + "px"
}

export function setDocumentHeight(cm, measure) {
  cm.display.sizer.style.minHeight = measure.docHeight + "px"
  cm.display.heightForcer.style.top = measure.docHeight + "px"
  cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
}

Youez - 2016 - github.com/yon3zu
LinuXploit