feat: add prompt for waitting window

lua/Trans/core/buffer.lua

@@ -2,7 +2,7 @@ local api, fn = vim.api, vim.fn
 
 ---@class TransBuffer
 ---@field bufnr integer buffer handle
----@field [number] string buffer[line] content
+---@field [number] string|TransNode? buffer[line] content
 local buffer = {}
 
 -- INFO : corountine can't invoke C function

lua/Trans/core/frontend.lua

@@ -7,7 +7,7 @@ local frontend_opts = conf.frontend
 ---@field opts TransFrontendOpts
 ---@field get_active_instance fun():TransFrontend?
 ---@field process fun(self: TransFrontend, data: TransData)
----@field wait fun(self: TransFrontend): fun() Update wait status
+---@field wait fun(self: TransFrontend): fun(backend: TransBackend): boolean Update wait status
 ---@field execute fun(action: string) @Execute action for frontend instance
 ---@field fallback fun() @Fallback method when no result
 ---@field setup? fun() @Setup method for frontend [optional] **NOTE: This method will be called when frontend is first used**

lua/Trans/core/translate.lua

@@ -60,7 +60,7 @@ local strategy = {
             local name = backend.name
             ---@cast backend TransBackend
             while result[name] == nil do
-                if not update() then break end
+                if not update(backend) then break end
             end
 
             if result[name] then return true end

lua/Trans/frontend/hover/init.lua

@@ -91,22 +91,17 @@ function M:init_window(opts)
     local option = {
         buffer = self.buffer,
         animation = m_opts.animation,
-    }
-
-    local win_opts = {
+        win_opts = {
             col       = opts.col or 1,
             row       = opts.row or 1,
-        title    = m_opts.title,
             width     = opts.width or m_opts.width,
             height    = opts.height or m_opts.height,
             relative  = opts.relative or 'cursor',
+            title     = m_opts.title,
+            title_pos = m_opts.title and 'center' or nil,
+        },
     }
 
-    if win_opts.title then
-        win_opts.title_pos = 'center'
-    end
-
-    option.win_opts = win_opts
     self.window = Trans.window.new(option)
     return self.window
 end
@@ -120,29 +115,30 @@ function M:icon_format(format)
 end
 
 ---Get Check function for waiting
----@return function
+---@return fun(backend: TransBackend): boolean
 function M:wait()
-    local cur      = 0
+    local util     = Trans.util
     local opts     = self.opts
     local buffer   = self.buffer
-    local times    = opts.width
-    local pause    = Trans.util.pause
+    local pause    = util.pause
     local cell     = opts.icon.cell
     local spinner  = Trans.style.spinner[opts.spinner]
+    local times    = opts.width - spinner[1]:width()
     local size     = #spinner
     local interval = math.floor(opts.timeout / opts.width)
 
     self:init_window {
-        height = 1,
-        width = times,
+        height = 2,
+        width = opts.width,
     }
 
-
-    -- FIXME : add proper args
-    return function()
+    local cur = 0
+    local pr  = util.node.prompt
+    local it  = util.node.item
+    return function(backend)
         cur = cur + 1
-        buffer[1] = spinner[cur % size + 1] .. (cell):rep(cur)
-        buffer:add_highlight(1, 'TransWaitting')
+        buffer[1] = pr(backend.name_zh)
+        buffer[2] = it { spinner[cur % size + 1] .. (cell):rep(cur), 'TransWaitting' }
         pause(interval)
         return cur < times
     end
@@ -150,22 +146,21 @@ end
 
 ---FallBack window for no result
 function M:fallback()
+    local opts = self.opts
+    local fallback_msg = self:icon_format(opts.fallback_message)
+
+
+    local buffer = self.buffer
+    buffer:wipe()
+    buffer[1] = Trans.util.center(fallback_msg, opts.width)
+    buffer:add_highlight(1, 'TransFailed')
     if not self.window then
         self:init_window {
-            height = 1,
+            height = buffer:line_count(),
             width = self.opts.width,
         }
     end
 
-    local buffer = self.buffer
-    buffer:wipe()
-
-    local opts = self.opts
-    local fallback_msg = self:icon_format(opts.fallback_message)
-
-    -- TODO :Center
-    buffer[1] = Trans.util.center(fallback_msg, opts.width)
-    buffer:add_highlight(1, 'TransFailed')
     self:defer()
 end
 
@@ -211,11 +206,7 @@ function M:process(data)
 
     -- vim.pretty_print(result)
     util.main_loop(function()
-        if not buffer:is_valid() then
-            buffer:init()
-        else
-            buffer:wipe()
-        end
+        buffer[buffer:is_valid() and 'wipe' or 'init'](buffer)
 
         ---@cast name string
         self:load(result, name, opts.order[name])

lua/Trans/frontend/hover/load.lua

@@ -1,5 +1,5 @@
 local node = require 'Trans'.util.node
-local it, conjunction = node.item, node.conjunction
+local it, pr = node.item, node.prompt
 local interval = (' '):rep(4)
 
 local M = setmetatable({}, {
@@ -27,7 +27,7 @@ local default = {
         if not translation then return end
 
         local buffer = hover.buffer
-        buffer:setline(conjunction(hover.opts.icon.translation .. ' 中文翻译'))
+        buffer:setline(pr(hover.opts.icon.translation .. ' 中文翻译'))
 
         for _, value in ipairs(translation) do
             buffer:setline(
@@ -42,7 +42,7 @@ local default = {
         if not definition then return end
 
         local buffer = hover.buffer
-        buffer:setline(conjunction(hover.opts.icon.definition .. ' 英文注释'))
+        buffer:setline(pr(hover.opts.icon.definition .. ' 英文注释'))
 
         for _, value in ipairs(definition) do
             buffer:setline(

lua/Trans/frontend/hover/offline.lua

@@ -1,7 +1,11 @@
 local node = require 'Trans'.util.node
-local it, t, f, co = node.item, node.text, node.format, node.conjunction
+local it, t, f, co = node.item, node.text, node.format, node.prompt
 local interval = (' '):rep(4)
 
+
+---@class TransHover
+---@field offline TransHoverRenderer
+
 ---@type TransHoverRenderer
 local M = {}
 

lua/Trans/frontend/hover/youdao.lua

@@ -1,5 +1,5 @@
-local node = require('Trans').util.node
-local it, t, f, co = node.item, node.text, node.format, node.conjunction
+local node = require 'Trans'.util.node
+local it, t, f, pr = node.item, node.text, node.format, node.prompt
 
 ---@type TransHoverRenderer
 local M = {}
@@ -8,7 +8,7 @@ local interval = (' '):rep(4)
 function M.web(hover, result)
     if not result.web then return end
     local buffer = hover.buffer
-    buffer:setline(co(hover.opts.icon.web .. ' 网络释义'))
+    buffer:setline(pr(hover.opts.icon.web .. ' 网络释义'))
 
     local function remove_duplicate(strs)
         local uniq_strs = {}
@@ -42,14 +42,14 @@ function M.web(hover, result)
             })
         end
     end
-    buffer:setline('')
+    buffer:setline ''
 end
 
 function M.explains(hover, result)
     local explains = result.explains
     if not explains then return end
     local buffer = hover.buffer
-    buffer:setline(co('基本释义'))
+    buffer:setline(pr '基本释义')
 
 
     for i = 1, #explains, 2 do
@@ -59,9 +59,9 @@ function M.explains(hover, result)
             'TransExplains'
         })
     end
-    buffer:setline('')
+    buffer:setline ''
 end
 
-M.title = require('Trans').frontend.hover.offline.title
+M.title = require 'Trans'.frontend.hover.offline.title
 
 return M

lua/Trans/util/node.lua

@@ -91,7 +91,7 @@ return {
     item = item,
     text = text,
     format = format,
-    conjunction = function(str)
+    prompt = function(str)
         return {
             item { '', 'TransTitleRound' },
             item { str, 'TransTitle' },