feat: add youdao backend file

lua/Trans/core/translate.lua

@@ -24,14 +24,18 @@ local strategy = {
             backend.query(data)
 
             while result[name] == nil do
-                update()
+                if not update() then
+                    break
+                end
             end
 
             if type(result[name]) == 'table' then
                 return result[name]
             end
         end
-    end
+    end,
+
+    --- TODO :More Strategys
 }
 
 
@@ -58,7 +62,7 @@ local function process(opts)
     if not result then
         result = strategy[Trans.conf.query](data, data.frontend:wait())
         if not result then
-            -- data.frontend:fallback()
+            data.frontend:fallback()
             return
         end
     end

lua/Trans/core/util.lua

@@ -115,6 +115,23 @@ function M.display_size(lines, width)
     return { height = ds_height, width = ds_width }
 end
 
+---Center node utility function
+---@param node string -- TODO :Node
+---@param win_width integer window width
+---@return string
+function M.center(node, win_width)
+    if type(node) == 'string' then
+        local space = math.max(0, math.floor((win_width - node:width()) / 2))
+        return string.rep(' ', space) .. node
+    end
+
+    local str = node[1]
+    win_width = str:width()
+    local space = math.max(0, math.floor((win_width - str:width()) / 2))
+    node[1] = string.rep(' ', space) .. str
+    return node
+end
+
 ---Execute function in main loop
 ---@param func function function to be executed
 function M.main_loop(func)

lua/Trans/core/window.lua

@@ -157,17 +157,6 @@ function window:open()
     end
 end
 
--- function window:center(node)
---     -- TODO :
---     print('TODO Center')
---     -- local text = node[1]
---     -- local width = text:width()
---     -- local win_width = self.width
---     -- local space = math.max(math.floor((win_width - width) / 2), 0)
---     -- node[1] = (' '):rep(space) .. text
---     -- return node
--- end
-
 window.__index = window