{"id":101491,"date":"2021-10-02T10:22:42","date_gmt":"2021-10-02T08:22:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/plan-uluchsheniya-podderzhki-wayland-v-firefox"},"modified":"2021-10-02T10:22:42","modified_gmt":"2021-10-02T08:22:42","slug":"plan-uluchsheniya-podderzhki-wayland-v-firefox","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/plan-uluchsheniya-podderzhki-wayland-v-firefox","title":{"rendered":"Na\u010drt izbolj\u0161ave podpore Wayland v Firefoxu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Martin Stransky, vzdr\u017eevalec paketov Firefox v Fedora in RHEL, ki se ukvarja s prenosom Firefoxa za Wayland, je objavil poro\u010dilo o zadnjih dose\u017ekih pri delovanju Firefoxa v okoljih, ki temeljijo na protokolu Wayland.        <\/p>\n<p>V prihodnjih izdajah Firefox nameravajo re\u0161iti te\u017eave z odlo\u017ei\u0161\u010dem in obravnavo pojavnih oken (popup), ki so opazili v razli\u010dicah za Wayland. Te mo\u017enosti niso bile takoj uresni\u010dene zaradi razlik v pristopih k njihovemu uresni\u010devanju v X11 in Wayland. V prvem primeru so se te\u017eave pojavile zaradi delovanja odlo\u017ei\u0161\u010da Wayland v asinhronem na\u010dinu, kar je zahtevalo ustvarjanje lo\u010dene plasti za abstrakcijo dostopa do odlo\u017ei\u0161\u010da Wayland. Ta plast bo dodana v Firefox 93 in vklju\u010dena privzeto v Firefox 94.    <\/p>\n<p>Kar zadeva pojavna okna, je glavna te\u017eava ta, da Wayland zahteva strogo hierarhijo pojavnih oken, tj. star\u0161evsko okno lahko ustvari otro\u0161ko okno s popup-om, vendar se mora naslednji popup, ki ga spro\u017ei to okno, vezati na izvorno otro\u0161ko okno, kar ustvarja verigo. V Firefoxu je lahko vsako okno ustvarilo ve\u010d popup-ov, ki niso oblikovali hierarhije. Te\u017eava je bila v tem, da je pri uporabi Wayland-a zapiranje enega od popup-ov zahtevalo prenovo celotne verige oken z drugimi popup-i, pri \u010demer prisotnost ve\u010d odprtih popup-ov ni redkost, saj so v obliki popup-ov implementirani meniji, pojavne namige, dialogi raz\u0161iritev, zahtevki za pooblastila itd. Situacijo so dodatno ote\u017eevale pomanjkljivosti v Wayland-u in GTK, zaradi katerih je lahko \u017ee majhna sprememba povzro\u010dila razli\u010dne regresije. Kljub temu je bil koda za obravnavo pojavnih oken za Wayland optimiziran in ga nameravajo vklju\u010diti v Firefox 94.      <\/p>\n<p>Med drugim povezanih izbolj\u0161av Wayland se omenja dodatek v Firefoxu 93, ki se nana\u0161a na prilagoditev lestvice na zaslonih z razli\u010dnimi DPI, kar je omogo\u010dilo odpravo utripanja ob premikanju okna k robu zaslona v ve\u010dmonitornih konfiguracijah. V Firefoxu 95 je v na\u010drtu re\u0161itev te\u017eav, ki se pojavljajo pri uporabi vmesnika drag&amp;drop, na primer pri kopiranju datotek iz zunanjih virov v lokalne datote\u010dne sisteme in pri premikanju zavihkov.      <\/p>\n<p>V izdaji Firefox 96 na\u010drtujejo, da bodo prenos Firefox za Wayland privedli do enake funkcionalnosti kot razli\u010dica za X11, vsaj pri delu v GNOME okolju Fedora. Po tem se bo pozornost razvijalcev preusmerila na izbolj\u0161anje delovanja v Wayland GPU procesu, v katerem bo vsebovan koda za interakcijo z grafi\u010dnimi adapterji in ki za\u0161\u010diti glavni proces brskalnika pred zru\u0161itvijo v primeru te\u017eav z gonilniki. V GPU proces se bo prav tako prenesla koda za dekodiranje videoposnetkov z VAAPI, ki se trenutno izvaja v procesih obdelave vsebine.      <\/p>\n<p>Dodatno lahko omenimo vklju\u010ditev stroge izolacije spletnih mest za majhen dele\u017e uporabnikov stabilnih razli\u010dic Firefox, ki se razvija v okviru projekta Fission. V nasprotju z dosedanjim naklju\u010dnim dodeljevanjem obdelave zavihkov razpolo\u017eljivemu naboru procesov (privzeto 8), na\u010din stroge izolacije dodeli obdelavo vsakega spletnega mesta v svoj poseben proces, pri \u010demer se lo\u010ditev ne izvaja po zavihkih, temve\u010d po domenah (Public Suffix), kar omogo\u010da dodatno izolacijo vsebine zunanjih skript in iframe blokov. Upravljanje vklju\u010ditve na\u010dina Fission se izvaja preko spremenljivke 'fission.autostart=true' v about:config ali na strani about:preferences#experimental.      <\/p>\n<p>Re\u017eim stroge izolacije \u0161\u010diti pred napadi po stranskih kanalih, na primer tistimi, povezanimi z ranljivostmi razreda Spectre, hkrati pa zmanj\u0161uje fragmentacijo pomnilnika, u\u010dinkoviteje vra\u010da pomnilnik operacijskemu sistemu, minimizira vpliv zbiranja odpadkov in intenzivnih izra\u010dunov na strani v drugih procesih, pove\u010duje u\u010dinkovitost porazdelitve obremenitve na razli\u010dna jedra CPU in pove\u010duje stabilnost (zru\u0161itev procesa, ki obdeluje iframe, ne bo potegnila glavne strani in drugih zavihkov).    <\/p>\n<p>Med znanimi te\u017eavami, ki nastanejo pri uporabi re\u017eima stroge izolacije, je opazno pove\u010danje porabe pomnilnika in datote\u010dnih descriptorjev pri odpiranju velikega \u0161tevila zavihkov, pa tudi motnje pri delovanju nekaterih raz\u0161iritev, izginotje vsebine iframe pri tiskanju in klicu funkcije zajema zaslona, zmanj\u0161ana u\u010dinkovitost predpomnjenja dokumentov z iframe, izguba vsebine izpolnjenih, a ne poslanih obrazcev pri obnovitvi seje po zru\u0161itvi.     <\/p>\n<p>Med drugim spremembam v Firefoxu so zaklju\u010dene migracije na sistem lokalizacije Fluent, izbolj\u0161an vi\u0161okot Contrast Mode, dodana mo\u017enost snemanja profilov uspe\u0161nosti procesa v enem kliku v about:processes, ter odstranjena nastavitev za vrnitev na staro obliko strani za odpiranje nove zavihke, ki se je uporabljala do Firefox 89.<br \/>\n<br \/>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55899\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u0430\u0440\u0442\u0438\u043d \u0421\u0442\u0440\u0430\u043d\u0441\u043a\u0438\u0439 (Martin Stransky), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0441 Firefox \u0432 Fedora \u0438 RHEL, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c Firefox \u0434\u043b\u044f Wayland, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u043e\u0442\u0447\u0451\u0442 \u0441 \u043e\u0431\u0437\u043e\u0440\u043e\u043c \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0445 \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u0439 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0440\u0430\u0431\u043e\u0442\u044b Firefox \u0432 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u0445 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Wayland. \u0412 \u0431\u043b\u0438\u0436\u0430\u0439\u0448\u0438\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Firefox \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0440\u0435\u0448\u0438\u0442\u044c \u043d\u0430\u0431\u043b\u044e\u0434\u0430\u0435\u043c\u044b\u0435 \u0432 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u0434\u043b\u044f Wayland \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0441 \u0431\u0443\u0444\u0435\u0440\u043e\u043c \u043e\u0431\u043c\u0435\u043d\u0430 \u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0432\u0441\u043f\u043b\u044b\u0432\u0430\u044e\u0449\u0438\u0445 \u043e\u043a\u043e\u043d (popup). \u0423\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101491","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041c\u0430\u0440\u0442\u0438\u043d \u0421\u0442\u0440\u0430\u043d\u0441\u043a\u0438\u0439 (Martin Stransky), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0441 Firefox \u0432 Fedora \u0438 RHEL, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c Firefox \u0434\u043b\u044f Wayland, 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