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lua submenus add a way to dynamically add items

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updated example script and renamed some functions as well

fixed bug in printtable cursor position if greater than maxlines for the
screen would reset to item 1

now we move the list start and select it
(and try to center it on the screen)

fixed a few bugs in the add_menu code

Change-Id: I01dead0481ef2e925af8b4cc6c14e36c2859dbba
This commit is contained in:
William Wilgus 2021-04-29 01:56:49 -04:00 • committed by William Wilgus
parent 48b77898dc
commit 20cd89908d
3 changed files with 139 additions and 50 deletions
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44
apps/plugins/lua_scripts/submenu_demo.lua
View file

@ -13,17 +13,17 @@ end
local function ITEM_MENU()
local function flung(i, menu_t, func_t)
local parent = get_parent() or 0
local parent = submenu_get_parent() or 0
rb.splash(100, "flung " .. (menu_t[parent] or "?"))
end
local function foo(i, menu_t, func_t)
local parent = get_parent() or 0
local parent = submenu_get_parent() or 0
rb.splash(100, "FOO " .. menu_t[parent])
end
local function far(i, menu_t, func_t)
local parent = get_parent() or 0
local parent = submenu_get_parent() or 0
rb.splash(100, "far" .. menu_t[parent])
end
@ -32,16 +32,44 @@ local function ITEM_MENU()
end
local function USERITEMS()
local lv = 2
local mt = {"Item_1", "Item_2", "Item_3"}
local ft = {}
return {"Item_1", "Item_2", "Item_3"},
{create_sub_menu(2, ITEM_MENU()), create_sub_menu(2, ITEM_MENU()),
create_sub_menu(2, ITEM_MENU()), function() end}
local function insert_item(i, name, func) --closure
submenu_insert(mt, i, name)
submenu_insert(ft, i, func)
end
for i = 1, #mt, 1 do
ft[i] = submenu_create(lv, ITEM_MENU())
end
local function add_new(i, menu_t, func_t)
local parent, lv = submenu_get_parent(lv - 1)
local last = #mt
local name = "Item_" .. tostring(last)
local func = submenu_create(lv + 1, ITEM_MENU())
local lv_out, item_out, removed = submenu_collapse(parent, lv + 1)-- collapse others
submenu_collapse(parent, lv) -- collapse the parent
insert_item(last, name, func)
func_t[parent](parent, menu_t, func_t) -- reopen parent
menu_ctx.start = i - removed
return true
end
local next = #mt + 1
insert_item(next, "Add New", add_new)
return mt, ft
end
local function MAIN_MENU()
local function go_back(i, m, f)
local parent = get_parent() or 0
local parent = submenu_get_parent() or 0
if parent > 0 then
f[parent](parent, m, f)
else
@ -60,7 +88,7 @@ local function MAIN_MENU()
local ft = {
[0] = go_back, --if user cancels do this function
[1] = false, -- shouldn't happen title occupies this slot
[2] = create_sub_menu(1, USERITEMS()),
[2] = submenu_create(1, USERITEMS()),
[3] = go_back,
}
return mt, ft, get_ctx_menu