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gemini: demo of context-sensitive menu 

Basic procedure:
  - save/restore `menu` around call of a function (directly or
    indirectly called by `update`) that encapsulates some state change
  - override `menu` inside the function to correspond to its update loop
This commit is contained in:
Kartik K. Agaram 2022-01-18 20:11:56 -08:00
parent 5258fbec7c
commit 3f6861b4db
1 changed files with 8 additions and 1 deletions
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9
gemini.tlv
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@ -246,6 +246,11 @@
> local result = ''
> local cursor = 1
> local screen_rows, screen_cols = window:getmaxyx()
> menu = {
> {'enter', 'submit'},
> {'ctrl-g', 'cancel'},
> {'ctrl-u', 'clear'},
> }
> while true do
> window:mvaddstr(screen_rows-1, 9, '')
> window:clrtoeol()
@ -278,7 +283,7 @@
> cursor = 1
> elseif key == 10 then -- enter
> return result
> elseif key == 24 then -- ctrl-x
> elseif key == 7 then -- ctrl-g
> return nil
> end
> end
@ -336,7 +341,9 @@
> window:clrtoeol()
> window:mvaddstr(screen_rows-1, 5, 'go: ')
> curses.curs_set(2)
> local old_menu = menu
> local new_url = edit_line(window)
> menu = old_menu
> if new_url then
> state.url = new_url
> gemini_get(new_url)