140 lines
3.9 KiB
VimL
140 lines
3.9 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:imselect_cmd = exepath('im-select')
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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 = 'com.apple.inputmethod.SCIM.ITABC'
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endif
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" ---------------------------------------------------------------------
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" Functions:
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function! IMSelectCurrentIM() abort
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return substitute(system(shellescape(s:imselect_cmd) . ' 2>/dev/null'), '[\r\n]', '', 'g')
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endfunction
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function! IMSelectSwitch(im) abort
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if has('job')
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silent! call job_start([s:imselect_cmd, a:im], {'out_io': 'null', 'err_io': 'null'})
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else
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silent! call system(shellescape(s:imselect_cmd) . ' ' . shellescape(a:im) . ' >/dev/null 2>&1 &')
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endif
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endfunction
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function! IMSelectStart() abort
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call IMSelectSwitch(g:imselect_english_im)
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endfunction
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function! IMSelectEnsureTarget(timer) abort
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if g:imselect_last_insert_im_name != ''
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call IMSelectSwitch(g:imselect_last_insert_im_name)
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endif
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endfunction
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" 离开 Insert 模式前：保存当前输入法名称
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function! IMSelectRemember() abort
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let current_im = IMSelectCurrentIM()
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if current_im != ''
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let g:imselect_last_insert_im_name = current_im
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endif
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endfunction
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" 离开 Insert 模式：切换到英文
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function! IMSelect2en() abort
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call IMSelectSwitch(g:imselect_english_im)
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endfunction
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" 恢复 Insert 模式输入法
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function! IMSelectRestore(timer) abort
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if g:imselect_last_insert_im_name == ''
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let g:imselect_last_insert_im_name = g:imselect_chinese_im
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endif
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call IMSelectSwitch(g:imselect_last_insert_im_name)
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call timer_start(200, function('IMSelectEnsureTarget'))
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endfunction
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" 进入 Insert 模式：延迟恢复保存的输入法
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function! IMSelect2zh() abort
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call timer_start(80, function('IMSelectRestore'))
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endfunction
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" ---------------------------------------------------------------------
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" Autocmds:
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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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autocmd!
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" 离开 Insert 模式前：先保存输入法状态
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autocmd InsertLeavePre * call IMSelectRemember()
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" 离开 Insert 模式：切换到英文
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autocmd 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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autocmd InsertEnter * call IMSelect2zh()
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" Vim 启动后：切换到英文
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autocmd VimEnter * call timer_start(100, {-> IMSelectStart()})
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augroup END
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endfunction
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function! UnBindIMSelectAu()
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augroup IMSelect
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autocmd!
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augroup END
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endfunction
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call BindIMSelectAu()
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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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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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