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Add instructions on how to repeat the FB10978412 bug.

This commit is contained in:
ShikiSuen 2022-08-10 13:54:29 +08:00
parent 447aa8ce37
commit fad03a8147
1 changed files with 16 additions and 4 deletions
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20
Source/Modules/ControllerModules/ctlInputMethod_HandleDisplay.swift
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@ -83,8 +83,23 @@ extension ctlInputMethod {
return NSFont.systemFont(ofSize: size)
}
/// FB10978412: Since macOS 11 Big Sur, CTFontCreateUIFontForLanguage cannot
/// distinguish zh-Hans and zh-Hant with correct adoptation of proper PingFang SC/TC variants.
///
/// Instructions for Apple Developer relations to reveal this bug:
///
/// 1) Remove the usage of ".languageIdentifier" from ctlCandidateUniversal.swift (already done).
/// 2) Run "make update" in the project folder to download the latest git-submodule of dictionary file.
/// 3) Compile the target "vChewingInstaller", run it. It will install the input method into
/// "~/Library/Input Methods/" folder. Remember to ENABLE BOTH "vChewing-CHS"
/// and "vChewing-CHT" input sources in System Preferences / Settings.
/// 4) Type Zhuyin "ej3" (ㄍㄨˇ) (or "gu3" in Pinyin if you enabled Pinyin typing in vChewing preferences.)
/// using both "vChewing-CHS" and "vChewing-CHT", and check the candidate window by pressing SPACE key.
/// 5) Do NOT enable either KangXi conversion mode nor JIS conversion mode. They are disabled by default.
/// 6) Expecting the glyph differences of the candidate "骨" between PingFang SC and PingFang TC when rendering
/// the candidate window in different "vChewing-CHS" and "vChewing-CHT" input modes.
func candidateFont(name: String?, size: CGFloat) -> NSFont {
var finalReturnFont: NSFont =
let finalReturnFont: NSFont =
{
switch IME.currentInputMode {
case InputMode.imeModeCHS:
@ -98,9 +113,6 @@ extension ctlInputMethod {
}
}()
?? NSFont.systemFont(ofSize: size)
// 上述方法對 macOS 10.11-10.15 有效，但對 macOS 12 Monterey 無效（懷疑是 Bug）。
// macOS 12 Monterey 開始就用系統內建的函式來處理，相關流程直接寫在 ctlCandidateUniversal 內。
if #available(macOS 12.0, *) { finalReturnFont = NSFont.systemFont(ofSize: size) }
if let name = name {
return NSFont(name: name, size: size) ?? finalReturnFont
}