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