historyview.lua

local _ = require("gettext")

local History = require("history")

-- Maybe we should extend the history module?

local HistoryView = {
   
}

function HistoryView:new(o)
   o = o or {}
   setmetatable(o, self)
   self.__index = self   
   return o
end

function HistoryView:getContinueButton(load_puzzle_cb)
   local history = History:new{}
   if #history:get() > 0 then
      local history_item = history:get()[1]
      return {
         text = _(("Continue \"%s\""):format(history_item['puzzle_title'])),
         callback = function()
            load_puzzle_cb(history_item)
         end
      }
   else
      return nil
   end
end

--[[--
Return a list that can be used to populate a plugin menu.
]]
function HistoryView:getMenuItems(load_puzzle_cb, clear_history_cb)
   local menu_items = {}
   local sub_menu_items = {}
   -- If the user has started a puzzle, we'll add a new option to the menu.   
   local history = History:new{}   
   if #history:get() > 0 then
      local history_list = {}
      for i, item in ipairs(history:get()) do
         table.insert(sub_menu_items, {
               text = item['puzzle_title'],
               callback = function()
                  load_puzzle_cb(item)
               end
         })
      end
      -- Add a clear history button
      table.insert(sub_menu_items,
         {
            text = _("Clear history"),
            keep_menu_open = false,
            callback = function()
               history:clear()
            end
         }
      )
      table.insert(menu_items, {
            text = _("History"),
            sub_item_table = sub_menu_items
      })
      return menu_items
   else
      return nil
   end
end

return HistoryView