feat: first draft

lua/oil/mutator/progress.lua

@@ -0,0 +1,77 @@
+local columns = require("oil.columns")
+local loading = require("oil.loading")
+local util = require("oil.util")
+local Progress = {}
+
+local FPS = 20
+
+function Progress.new()
+  local bufnr = vim.api.nvim_create_buf(false, true)
+  vim.bo[bufnr].bufhidden = "wipe"
+  return setmetatable({
+    lines = { "", "", "" },
+    bufnr = bufnr,
+  }, {
+    __index = Progress,
+  })
+end
+
+function Progress:show()
+  if self.winid and vim.api.nvim_win_is_valid(self.winid) then
+    return
+  end
+  local loading_iter = loading.get_bar_iter()
+  self.timer = vim.loop.new_timer()
+  self.timer:start(
+    0,
+    math.floor(1000 / FPS),
+    vim.schedule_wrap(function()
+      self.lines[2] = loading_iter()
+      self:_render()
+    end)
+  )
+  local width = 120
+  local height = 10
+  self.winid = vim.api.nvim_open_win(self.bufnr, true, {
+    relative = "editor",
+    width = width,
+    height = height,
+    row = math.floor((vim.o.lines - vim.o.cmdheight - height) / 2),
+    col = math.floor((vim.o.columns - width) / 2),
+    style = "minimal",
+    border = "rounded",
+  })
+end
+
+function Progress:_render()
+  util.render_centered_text(self.bufnr, self.lines)
+end
+
+---@param action oil.Action
+---@param idx integer
+---@param total integer
+function Progress:set_action(action, idx, total)
+  local adapter = util.get_adapter_for_action(action)
+  local change_line
+  if action.type == "change" then
+    change_line = columns.render_change_action(adapter, action)
+  else
+    change_line = adapter.render_action(action)
+  end
+  self.lines[1] = change_line
+  self.lines[3] = string.format("[%d/%d]", idx, total)
+  self:_render()
+end
+
+function Progress:close()
+  if self.timer then
+    self.timer:close()
+    self.timer = nil
+  end
+  if self.winid then
+    vim.api.nvim_win_close(self.winid, true)
+    self.winid = nil
+  end
+end
+
+return Progress