update at 2025-12-05 13:34:29

vim-im-switch-select.vim

@@ -0,0 +1,145 @@
+" vim-im-switch-select.vim - 智能记忆输入法状态 (使用 im-select)
+" Author:       Gavin Chan
+" Modified by:  codefalling, enhanced with smart IM state memory
+" Version:      2.0.0
+" Description:  记住退出 Insert 模式时的输入法状态，下次进入时自动恢复
+"               使用 im-select 而不是 fcitx-remote 切换输入法
+" ---------------------------------------------------------------------
+" Load Once:
+if exists('g:imselect_loaded')
+  finish
+endif
+
+if &ttimeoutlen <= 0 || &ttimeoutlen > 50
+    set ttimeoutlen=50
+endif
+
+if (has("win32") || has("win95") || has("win64") || has("win16"))
+  " Windows 下不要载入
+  finish
+endif
+if exists('$SSH_TTY')
+  finish
+endif
+if !executable("im-select")
+  finish
+endif
+let s:keepcpo = &cpo
+let g:imselect_loaded = 1
+set cpo&vim
+
+" ---------------------------------------------------------------------
+" 全局变量：记住上次 Insert 模式的输入法名称
+let g:imselect_last_insert_im_name = ''
+
+" 英文和中文输入法的 ID（可以通过 im-select 获取）
+if !exists('g:imselect_english_im')
+    let g:imselect_english_im = 'com.apple.keylayout.ABC'
+endif
+
+if !exists('g:imselect_chinese_im')
+    let g:imselect_chinese_im = 'auto-detect'  " 将自动检测
+endif
+
+" ---------------------------------------------------------------------
+" Functions:
+
+" 离开 Insert 模式：保存当前输入法名称，然后切换到英文
+function! IMSelect2en()
+  " 保存当前输入法名称
+  let current_im = substitute(system("im-select 2>/dev/null"), '\n', '', 'g')
+  let g:imselect_last_insert_im_name = current_im
+  
+  " 切换到英文输入法（使用后台任务并重定向所有输出）
+  if has('job')
+    " Use nohup in a shell backgrounded process. Some Vim builds don't accept
+    " the 'detach' option; calling via sh -lc with nohup/& keeps process
+    " disassociated while avoiding unsupported job_start options.
+    call job_start(['sh', '-lc', 'nohup im-select ' . shellescape(g:imselect_english_im) . ' >/dev/null 2>&1 &'])
+  else
+    " Fallback: nohup in background
+    call system('nohup im-select ' . shellescape(g:imselect_english_im) . ' >/dev/null 2>&1 &')
+  endif
+endfunction
+
+" 进入 Insert 模式：根据保存的输入法名称恢复
+function! IMSelect2zh()
+  " 如果上次保存的输入法名称为空，说明是第一次进入，保持英文
+  if g:imselect_last_insert_im_name == ''
+    return
+  endif
+  
+  " 如果上次是英文输入法，保持英文（不需要做任何事）
+  if g:imselect_last_insert_im_name == g:imselect_english_im
+    return
+  endif
+  
+  " 上次是中文输入法，恢复到那个输入法（使用后台任务并重定向所有输出）
+  if has('job')
+    call job_start(['sh', '-lc', 'nohup im-select ' . shellescape(g:imselect_last_insert_im_name) . ' >/dev/null 2>&1 &'])
+  else
+    call system('nohup im-select ' . shellescape(g:imselect_last_insert_im_name) . ' >/dev/null 2>&1 &')
+  endif
+endfunction
+" ---------------------------------------------------------------------
+" Autocmds:
+
+" 进入 Insert 模式一次后的处理
+function! IMSelect2zhOnce()
+  call IMSelect2zh()
+  call UnBindIMSelectAu()
+endfunction
+
+function! BindIMSelectAu2zhOnce()
+  augroup IMSelect
+   au InsertEnter * call IMSelect2zhOnce()
+  augroup END
+endfunction
+
+" 绑定自动命令
+function! BindIMSelectAu()
+  augroup IMSelect
+   " 离开 Insert 模式：保存输入法状态并切换到英文
+   au InsertLeave * call IMSelect2en()
+   " 进入 Insert 模式：恢复上次的输入法状态
+   au InsertEnter * call IMSelect2zh()
+   " Vim 启动时：切换到英文
+   au VimEnter * call IMSelect2en()
+  augroup END
+endfunction
+
+function! UnBindIMSelectAu()
+  au! IMSelect InsertLeave *
+  au! IMSelect InsertEnter *
+endfunction
+
+" 延迟初始化：首次进入 Insert 模式时才绑定自动命令
+let g:imselect_called_bind = 0
+function! IMSelectEchoBind()
+    if (g:imselect_called_bind==0)
+        call BindIMSelectAu()
+    endif
+    let g:imselect_called_bind = 1
+endfunction
+
+autocmd InsertEnter * call IMSelectEchoBind()
+
+" 多光标支持：在选择多个光标前后的处理
+function! IMSelect_multiple_cursors_before()
+  call UnBindIMSelectAu()
+  call BindIMSelectAu2zhOnce()
+endfunction
+
+function! IMSelect_multiple_cursors_after()
+  call IMSelect2en()
+  call BindIMSelectAu()
+endfunction
+
+" ---------------------------------------------------------------------
+" Restoration And Modelines:
+let &cpo=s:keepcpo
+unlet s:keepcpo
+
+let g:imselect_loaded = 1
+
+" vim:fdm=expr:fde=getline(v\:lnum-1)=~'\\v"\\s*-{20,}'?'>1'\:1