{"id":104569,"date":"2022-07-01T15:36:43","date_gmt":"2022-07-01T13:36:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-platformy-webos-open-source-edition-2-17"},"modified":"2022-07-01T15:36:43","modified_gmt":"2022-07-01T13:36:44","slug":"vypusk-platformy-webos-open-source-edition-2-17","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-platformy-webos-open-source-edition-2-17","title":{"rendered":"Vyd\u00e1n\u00ed platformy webOS Open Source Edition 2.17","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Byl zve\u0159ejn\u011bn vyd\u00e1n\u00ed otev\u0159en\u00e9 platformy webOS Open Source Edition 2.17, kter\u00e1 m\u016f\u017ee b\u00fdt pou\u017eita na r\u016fzn\u00fdch p\u0159enosn\u00fdch za\u0159\u00edzen\u00edch, desk\u00e1ch a automobilov\u00fdch informa\u010dn\u011b-z\u00e1bavn\u00edch syst\u00e9mech. Jako referen\u010dn\u00ed hardwarov\u00e1 platforma jsou zva\u017eov\u00e1ny desky Raspberry Pi 4. Platforma se vyv\u00edj\u00ed ve ve\u0159ejn\u00e9m repozit\u00e1\u0159i pod licenc\u00ed Apache 2.0 a v\u00fdvoj je \u0159\u00edzen komunitou, kter\u00e1 dodr\u017euje spole\u010dn\u00fd model \u0159\u00edzen\u00ed v\u00fdvoje. <\/p>\n
Platforma webOS byla p\u016fvodn\u011b vyvinuta spole\u010dnost\u00ed Palm v roce 2008 a byla pou\u017e\u00edv\u00e1na na smartphonech Palm Pre a Pixie. V roce 2010, po akvizici spole\u010dnosti Palm, p\u0159e\u0161la platforma do rukou Hewlett-Packard, kter\u00e1 se pokou\u0161ela tuto platformu vyu\u017e\u00edt ve sv\u00fdch tisk\u00e1rn\u00e1ch, tabletech, laptopech a PC. V roce 2012 spole\u010dnost HP ozn\u00e1mila, \u017ee webOS p\u0159evede na nez\u00e1visl\u00fd otev\u0159en\u00fd projekt a v roce 2013 za\u010dala uvol\u0148ovat zdrojov\u00e9 k\u00f3dy jeho komponent. V roce 2013 byla platforma zakoupena od Hewlett-Packard spole\u010dnost\u00ed LG a nyn\u00ed je vyu\u017e\u00edv\u00e1na na v\u00edce ne\u017e 70 milionech televizor\u016f a spot\u0159ebitelsk\u00fdch za\u0159\u00edzen\u00ed LG. V roce 2018 byl zalo\u017een projekt webOS Open Source Edition, skrze kter\u00fd se spole\u010dnost LG pokusila vr\u00e1tit k otev\u0159en\u00e9mu modelu v\u00fdvoje, p\u0159il\u00e1kat dal\u0161\u00ed \u00fa\u010dastn\u00edky a roz\u0161\u00ed\u0159it spektrum podporovan\u00fdch za\u0159\u00edzen\u00ed webOS. <\/p>\n
Syst\u00e9mov\u00e9 prost\u0159ed\u00ed webOS je vytv\u00e1\u0159eno pomoc\u00ed n\u00e1stroj\u016f a z\u00e1kladn\u00edch bal\u00ed\u010dk\u016f OpenEmbedded, jako\u017e i syst\u00e9mu sestavov\u00e1n\u00ed a sady metadat z projektu Yocto. Kl\u00ed\u010dov\u00fdmi komponentami webOS jsou spr\u00e1vce syst\u00e9mu a aplikac\u00ed (SAM, System and Application Manager), kter\u00fd zaji\u0161\u0165uje spu\u0161t\u011bn\u00ed aplikac\u00ed a slu\u017eeb, a Luna Surface Manager (LSM), kter\u00fd tvo\u0159\u00ed u\u017eivatelsk\u00e9 rozhran\u00ed. Komponenty byly naps\u00e1ny pomoc\u00ed frameworku Qt a prohl\u00ed\u017ee\u010dov\u00e9ho enginu Chromium. <\/p>\n
Kreslen\u00ed se prov\u00e1d\u00ed prost\u0159ednictv\u00edm kompozitn\u00edho spr\u00e1vce, kter\u00fd pou\u017e\u00edv\u00e1 protokol Wayland. Pro v\u00fdvoj u\u017eivatelsk\u00fdch aplikac\u00ed se doporu\u010duje pou\u017e\u00edv\u00e1n\u00ed webov\u00fdch technologi\u00ed (CSS, HTML5 a JavaScript) a frameworku Enact zalo\u017een\u00e9ho na Reactu, ale je tak\u00e9 mo\u017en\u00e9 vytv\u00e1\u0159et programy v C a C++ s rozhran\u00edm postaven\u00fdm na Qt. U\u017eivatelsk\u00e9 rozhran\u00ed a vestav\u011bn\u00e9 grafick\u00e9 aplikace jsou v\u011bt\u0161inou realizov\u00e1ny jako nativn\u00ed programy napsan\u00e9 pomoc\u00ed technologie QML. Jako v\u00fdchoz\u00ed se nab\u00edz\u00ed rozhran\u00ed Home Launcher, optimalizovan\u00e9 pro ovl\u00e1d\u00e1n\u00ed dotykov\u00fdmi obrazovkami a nab\u00edzej\u00edc\u00ed koncept m\u011bn\u00edc\u00edch se karet (m\u00edsto oken). <\/p>\n<\/p>\n
![\"Vyd\u00e1n\u00ed](\"\/wp-content\/uploads\/2022\/07\/8aae7ea5f191c6977e2ca54a2c2ad6da.jpg\")
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