fix: handle chapter display and nibbles for late-start playback

[Roze061]

FIX #764

[Samillion]

Looks good to me.

I see you changed the status to a draft. Are you still working on something?

[Roze061]

@Samillion will using request_init be heavy on the cpu? to make the title go down when chapter_title is empty

[Samillion]

@Samillion will using request_init be heavy on the cpu? to make the title go down when chapter_title is empty

You mean in observe_cached("chapter", request_tick)? No, it's not called frequently to cause any performance impact.

Could you explain the problem in more detail? As just replacing _tick with _init is not ideal solution.

[Roze061]

state.initREQ = true for redraw request. like when fullscreen, when changing chapters it will also re-render

[Samillion]

Wouldn't a change in the layouts for chapter be better?

default layout:

--local chapter_index = user_opts.show_chapter_title and (state.chapter or -1) >= 0
++local chapter_index = user_opts.show_chapter_title and #state.chapter_list > 0 and (state.chapter or -1) >= 0

compact layout:

--local chapter_index = (state.chapter or -1) >= 0
++local chapter_index = #state.chapter_list > 0 and (state.chapter or -1) >= 0

In fact, both layouts should be this instead:

local chapter_index = #state.chapter_list > 0 and (state.chapter or -1) >= 0

[Roze061]

state.chapter is "-1" when chapter not start at 0, if not state.initREQ = true it will be invisible until there is request_init

[Samillion]

Indeed. I don't see a problem with using _init here, to be honest.

Could you also make the change to local chapter_index place, so that everything's clean.

local chapter_index = #state.chapter_list > 0 and (state.chapter or -1) >= 0

[Roze061]

(chapter: use request_init instead of #chapter_list)chapter: use request_init instead of #chapter_list
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