refactor: rename _extui => _core.ui2 #37692

Problem:
_extui module name is confusing and should eventually end up in _core/.

Solution:
Move it there and name it ui2.

1 files changed, 0 insertions, 152 deletions

diff --git a/runtime/lua/vim/_extui.lua b/runtime/lua/vim/_extui.lua
deleted file mode 100644
index 4d72325dd5..0000000000
--- a/runtime/lua/vim/_extui.lua
+++ /dev/null
@@ -1,152 +0,0 @@
---- @brief
----
----WARNING: This is an experimental interface intended to replace the message
----grid in the TUI.
----
----To enable the experimental UI (default opts shown):
----```lua
----require('vim._extui').enable({
----  enable = true, -- Whether to enable or disable the UI.
----  msg = { -- Options related to the message module.
----    ---@type 'cmd'|'msg' Where to place regular messages, either in the
----    ---cmdline or in a separate ephemeral message window.
----    target = 'cmd',
----    timeout = 4000, -- Time a message is visible in the message window.
----  },
----})
----```
----
----There are four separate window types used by this interface:
----- "cmd": The cmdline window; also used for 'showcmd', 'showmode', 'ruler', and
----  messages if 'cmdheight' > 0.
----- "msg": The message window; used for messages when 'cmdheight' == 0.
----- "pager": The pager window; used for |:messages| and certain messages
----   that should be shown in full.
----- "dialog": The dialog window; used for prompt messages that expect user input.
----
----These four windows are assigned the "cmd", "msg", "pager" and "dialog"
----'filetype' respectively. Use a |FileType| autocommand to configure any local
----options for these windows and their respective buffers.
----
----Rather than a |hit-enter-prompt|, messages shown in the cmdline area that do
----not fit are appended with a `[+x]` "spill" indicator, where `x` indicates the
----spilled lines. To see the full message, the |g<| command can be used.
-
-local api = vim.api
-local ext = require('vim._extui.shared')
-ext.msg = require('vim._extui.messages')
-ext.cmd = require('vim._extui.cmdline')
-local M = {}
-
-local function ui_callback(redraw_msg, event, ...)
-  local handler = ext.msg[event] or ext.cmd[event]
-  ext.check_targets()
-  handler(...)
-  -- Cmdline mode, non-fast message and non-empty showcmd require an immediate redraw.
-  if ext.cmd[event] or redraw_msg or (event == 'msg_showcmd' and select(1, ...)[1]) then
-    ext.redrawing = true
-    api.nvim__redraw({
-      flush = handler ~= ext.cmd.cmdline_hide or nil,
-      cursor = handler == ext.cmd[event] and true or nil,
-      win = handler == ext.cmd[event] and ext.wins.cmd or nil,
-    })
-    ext.redrawing = false
-  end
-end
-local scheduled_ui_callback = vim.schedule_wrap(ui_callback)
-
----@nodoc
-function M.enable(opts)
-  vim.validate('opts', opts, 'table', true)
-  if opts.msg then
-    vim.validate('opts.msg.pos', opts.msg.pos, 'nil', true, 'nil: "pos" moved to opts.target')
-    vim.validate('opts.msg.box', opts.msg.box, 'nil', true, 'nil: "timeout" moved to opts.msg')
-    vim.validate('opts.msg.target', opts.msg.target, function(tar)
-      return tar == 'cmd' or tar == 'msg'
-    end, "'cmd'|'msg'")
-  end
-  ext.cfg = vim.tbl_deep_extend('keep', opts, ext.cfg)
-
-  if ext.cfg.enable == false then
-    -- Detach and cleanup windows, buffers and autocommands.
-    for _, win in pairs(ext.wins) do
-      if api.nvim_win_is_valid(win) then
-        api.nvim_win_close(win, true)
-      end
-    end
-    for _, buf in pairs(ext.bufs) do
-      if api.nvim_buf_is_valid(buf) then
-        api.nvim_buf_delete(buf, {})
-      end
-    end
-    api.nvim_clear_autocmds({ group = ext.augroup })
-    vim.ui_detach(ext.ns)
-    return
-  end
-
-  vim.ui_attach(ext.ns, { ext_messages = true, set_cmdheight = false }, function(event, ...)
-    if not (ext.msg[event] or ext.cmd[event]) then
-      return
-    end
-    -- Ensure cmdline is placed after a scheduled message in block mode.
-    if vim.in_fast_event() or (event == 'cmdline_show' and ext.cmd.srow > 0) then
-      scheduled_ui_callback(false, event, ...)
-    else
-      ui_callback(event == 'msg_show', event, ...)
-    end
-    return true
-  end)
-
-  -- The visibility and appearance of the cmdline and message window is
-  -- dependent on some option values. Reconfigure windows when option value
-  -- has changed and after VimEnter when the user configured value is known.
-  -- TODO: Reconsider what is needed when this module is enabled by default early in startup.
-  local function check_cmdheight(value)
-    ext.check_targets()
-    -- 'cmdheight' set; (un)hide cmdline window and set its height.
-    local cfg = { height = math.max(value, 1), hide = value == 0 }
-    api.nvim_win_set_config(ext.wins.cmd, cfg)
-    -- Change message position when 'cmdheight' was or becomes 0.
-    if value == 0 or ext.cmdheight == 0 then
-      ext.cfg.msg.target = value == 0 and 'msg' or 'cmd'
-      ext.msg.prev_msg = ''
-    end
-    ext.cmdheight = value
-  end
-
-  if vim.v.vim_did_enter == 0 then
-    vim.schedule(function()
-      check_cmdheight(vim.o.cmdheight)
-    end)
-  end
-
-  api.nvim_create_autocmd('OptionSet', {
-    group = ext.augroup,
-    pattern = { 'cmdheight' },
-    callback = function()
-      check_cmdheight(vim.v.option_new)
-      ext.msg.set_pos()
-    end,
-    desc = 'Set cmdline and message window dimensions for changed option values.',
-  })
-
-  api.nvim_create_autocmd({ 'VimResized', 'TabEnter' }, {
-    group = ext.augroup,
-    callback = function()
-      ext.msg.set_pos()
-    end,
-    desc = 'Set cmdline and message window dimensions after shell resize or tabpage change.',
-  })
-
-  api.nvim_create_autocmd('WinEnter', {
-    callback = function()
-      local win = api.nvim_get_current_win()
-      if vim.tbl_contains(ext.wins, win) and api.nvim_win_get_config(win).hide then
-        vim.cmd.wincmd('p')
-      end
-    end,
-    desc = 'Make sure hidden extui window is never current.',
-  })
-end
-
-return M