add lua sandbox, tabs, stuff

computers/commands/nano/conf.json

@@ -0,0 +1,7 @@
+{
+    "name": "nano",
+    "license": "MIT",
+    "version": 0.1,
+    "engine": 0.42,
+    "help": "allows editing of files"
+}

computers/commands/nano/init.lua

@@ -0,0 +1,113 @@
+function nano(pos, input, data)
+    local path = computers.devicepath .. "/" .. minetest.hash_node_position(pos) .. data.element.pwd
+    local files = computers.api.get_dir_keyed_list(path, false)
+
+    if not input then return "no file designated" end
+    if not files[input:split(" ")[1]] then return "file " .. input:split(" ")[1] .. " not found" end
+    if computers.formspec.get_index_by_name(
+        computers.formspec.registered_kast[data.player:get_player_name()],
+        "nano_btn"
+    ) then return "nano is already open, please close it" end
+
+    local f = io.open(path .. "/" .. input:split(" ")[1])
+    if not f then return "error reading file" end
+    local file = f:read("*all")
+    f:close()
+
+    --clean up if there exists a legacy nano_ctn
+    local nctn = computers.formspec.get_index_by_name(
+        computers.formspec.registered_kast[data.player:get_player_name()],
+        "nano_ctn"
+    )
+    if nctn then
+        local fs = computers.formspec.registered_kast[data.player:get_player_name()]
+        table.remove(fs, nctn)
+        computers.formspec.registered_kast[data.player:get_player_name()] = fs
+        minetest.chat_send_all(dump(fs))
+    end
+
+    local form = computers.gui.add_tab(data.player, "Nano", {
+        type = "container",
+        name = "nano_ctn",
+        state = 1,
+        x = 0,
+        y = 1,
+        {
+            type = "background",
+            x = 0,
+            y = 0,
+            w = 10,
+            h = 11,
+            texture_name = "[combine:16x16^[noalpha"
+        },
+        {
+            type = "textarea",
+            x = 0,
+            y = 0,
+            w = 10,
+            h = 10,
+            name = "nano_editor",
+            --read_only = 1,
+            --label = "test",
+            default = file,
+            close_on_enter = false,
+            --this breaks the scrollbar
+            --[[ props = {
+                border = false,
+            } ]]
+        },
+        {
+            type = "box",
+            x = 0,
+            y = 10,
+            w = 10,
+            h = 1,
+            color = "#ffffff"
+        },
+        {
+            type = "field",
+            x = 0,
+            y = 10,
+            w = 10,
+            h = 1,
+            name = "nano_commands",
+            close_on_enter = false,
+            pwd = "",
+            props = {
+                border = false,
+            },
+            on_event = function(form, player, element, value, fields)
+                if value == "save" and fields.nano_editor then
+                    --minetest.chat_send_all(fields.nano_editor)
+                    if #fields.nano_editor < 12000 then --12000 is luacheck line length of 120 * 100 lines
+                        minetest.safe_file_write(path .. "/" .. input:split(" ")[1], fields.nano_editor)
+                    else
+                        computers.api.chat_send_player(player, minetest.colorize("red", "[Nano]: file is to long"))
+                    end
+                elseif value == "exit" then
+                    local btn = computers.formspec.get_index_by_name(form, "nano_btn")
+                    local ctn = computers.formspec.get_index_by_name(form, "nano_ctn")
+                    form[ctn].state = 1
+                    table.remove(form, btn)
+                    --table.remove(form, ctn) cant actually remove it from within itself, therefore we hide it
+                    local tindex = 0
+                    for index, tab in pairs(form.tabs) do
+                        if tab == "nano" then tindex = index end
+                    end
+                    table.remove(form.tabs, tindex)
+                    tindex = computers.formspec.get_index_by_name(form, "terminal_ctn")
+
+                    form[tindex].state = 0
+                else
+                    computers.api.chat_send_player(player, minetest.colorize("red", "[Nano]: invalid command"))
+                end
+
+                return form
+            end,
+        },
+    })
+
+    return form
+end
+
+return nano