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WKWebViewの知られざるプロパティ/ Unknown properties of WKW...
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Kyusaku Mihara
August 25, 2023
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WKWebViewの知られざるプロパティ/ Unknown properties of WKWebView
https://dena.connpass.com/event/291447/
Kyusaku Mihara
August 25, 2023
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Transcript
2023.08.24 @qmihara WKWebViewͷ ΒΕ͟ΔϓϩύςΟ ެ։ SwiftWednesday
WKWebViewɺ ͬͯ·͢ΑͶʁ
WKWebView.interactionState ͬͯ·͔͢ʁ
https://developer.apple.com/documentation/webkit/wkwebview/3752236-interactionstate
“WebϏϡʔͰͷରͷݱࡏͷঢ়ଶΛΩϟϓνϟͯ͠ɺޙͰผ ͷWebϏϡʔʹͦͷঢ়ଶΛ෮ݩͰ͖ΔΑ͏ʹ͢ΔͨΊʹ༻ ͢ΔΦϒδΣΫτɻ”
WebViewͷ ঢ়ଶͷอଘͱ෮ݩ
อଘ
෮ݩ
Կ͠ͳ͍ͱ͜͏
ঢ়ଶͷอଘͱ෮ݩ Λ͢Δͱ͜͏
؆୯Ͱ͢Ͷʂ😊
ͱ͜ΖͰɺ interactionStateͷਖ਼ମʁ
https://developer.apple.com/documentation/webkit/wkwebview/3752236-interactionstate Anyܕ…ͩͱ…ʁ
{length = 4073, bytes = 0x00000002 62706c69 73743030 d3010203 ...
00000000 00000f77 } ͱΓ͋͑ͣ ͦͷ··ग़ྗͯ͠ΈΔͱ (NS)DataΆ͋͞Γ
“nil” Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected character È at line 1"
UserInfo={NSDebugDescription=Unexpected character È at line 1, kCFPropertyListOldStyleParsingError=Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected character '0x200' at line 1"
StringͰͳ͘ɺplistͰͳ͍
όΠφϦΤσΟλͰݟͯΈΑ͏
None
த plist ͬΆ͍ʁ
None
ઌ಄4όΠτԿ͜Εʁ
ͪͳΈʹόΠφϦܗࣜͷplist͜͏ (UserDefaultsͷplist)
ઌ಄4όΠτͬͯΈΔͱʁ
{ IsAppInitiated = 1; RenderTreeSize = 1241; SessionHistory = {
SessionHistoryCurrentIndex = 2; SessionHistoryEntries = ( …
None
ಡΈࠐΊͨʂ
https://github.com/WebKit/WebKit/blob/887ce26d210b05a9b5ebee1abc46da02901b8586/Source/ WebKit/UIProcess/mac/LegacySessionStateCoding.cpp#L503-L507
ਖ਼ମ plist ͷόΠφϦσʔλ+ઌ಄4 όΠτʹόʔδϣϯใ
interactionState iOS 15 Ҏ্͔Β
iOS 15 ະຬటष͍ΓํͰࣗ ͰؤுΔ͔͠ͳ͍
Ͳ͏ͬͯʁ
https://github.com/mozilla-mobile/firefox-ios/wiki/History-Restoration-in-WKWebView-(and-Error-Pages) ࢀߟใ(Firefox for iOS)
Firefox for iOS ͷཤྺཧํ๏؆୯ࡶઆ໌ • WKWebView.backForwardList ͷதΛநग़͠ӬଓԽ • ෮ݩ࣌ϩʔΧϧHTMLϑΝΠϧΛ·ͣಡΈࠐ·ͤɺΫΤϦύϥϝʔλͰཤ ྺใΛͯͦ͠ΕΛ
history.replaceState() ʹΑͬͯཤྺʹੵΜͰ͍͘
WKWebView ͷঢ়ଶͷอଘͱ෮ݩΛ࣮ݱ͍ͨ͠ͳ Βɺѱ͍͜ͱݴΘͳ͍ͷͰ Deplyment Target Λ iOS 15 ʹͯ͠ interactionState
Λ͓͏ ·ͱΊ
αϯϓϧͪ͜Β
ͯͨ͠ਓ • Kyusaku Mihara (@qmihara) • SkyLeapͷ։ൃͱϚωʔδϟʔ Λ͍ͬͯ·͢ • झຯࣸਅࡱӨ(📷SIGMA
fp)ͱ ֨ήʔ
͓͠·͍