How to enable cursor history jumplist content preview

[inengch]

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Environment

Please complete these steps and check these boxes (by putting an x inside the brackets) before filing your issue:

• OS:
  • [x] Linux
  • [] macOS
  • [] Windows
  • [] FreeBSD
• Vim:
  • [x] Terminal Vim
  • [] GVim
  • [] NeoVim

Put the contents of :version below:

VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Mar  1 2021 21:47:42)
Included patches: 1-2560
Compiled by conda@89053c29e180
Huge version without GUI.  Features included (+) or not (-):
+acl               +cmdline_hist      +ex_extra          +jumplist          +mouse_dec         -perl              -sound             +textprop          +writebackup
+arabic            +cmdline_info      +extra_search      +keymap            -mouse_gpm         +persistent_undo   +spell             +timers            -X11
+autocmd           +comments          -farsi             +lambda            -mouse_jsbterm     +popupwin          +startuptime       +title             -xfontset
+autochdir         +conceal           +file_in_path      +langmap           +mouse_netterm     +postscript        +statusline        -toolbar           -xim
-autoservername    +cryptv            +find_in_path      +libcall           +mouse_sgr         +printer           -sun_workshop      +user_commands     -xpm
-balloon_eval      +cscope            +float             +linebreak         -mouse_sysmouse    +profile           +syntax            +vartabs           -xsmp
+balloon_eval_term +cursorbind        +folding           +lispindent        +mouse_urxvt       -python            +tag_binary        +vertsplit         -xterm_clipboard
-browse            +cursorshape       -footer            +listcmds          +mouse_xterm       +python3           -tag_old_static    +virtualedit       -xterm_save
++builtin_terms    +dialog_con        +fork()            +localmap          +multi_byte        +quickfix          -tag_any_white     +visual
+byte_offset       +diff              +gettext           -lua               +multi_lang        +reltime           -tcl               +visualextra
+channel           +digraphs          -hangul_input      +menu              -mzscheme          +rightleft         +termguicolors     +viminfo
+cindent           -dnd               +iconv             +mksession         +netbeans_intg     -ruby              +terminal          +vreplace
-clientserver      -ebcdic            +insert_expand     +modify_fname      +num64             +scrollbind        +terminfo          +wildignore
-clipboard         +emacs_tags        +ipv6              +mouse             +packages          +signs             +termresponse      +wildmenu
+cmdline_compl     +eval              +job               -mouseshape        +path_extra        +smartindent       +textobjects       +windows
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
  fall-back for $VIM: "/home/work/miniconda3/share/vim"
Compilation: /home/conda/feedstock_root/build_artifacts/vim_1614635000636/_build_env/bin/x86_64-conda-linux-gnu-cc -c -I. -Iproto -DHAVE_CONFIG_H -DNDEBUG -O2 -isystem /home/zhan
gyineng/miniconda3/include -I/home/work/miniconda3/include -march=nocona -mtune=haswell -ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O2 -ffunction-sections -p
ipe -isystem /home/work/miniconda3/include -fdebug-prefix-map=/home/conda/feedstock_root/build_artifacts/vim_1614635000636/work=/usr/local/src/conda/vim-8.2.2560 -fdebug-p
refix-map=/home/work/miniconda3=/usr/local/src/conda-prefix -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: /home/conda/feedstock_root/build_artifacts/vim_1614635000636/_build_env/bin/x86_64-conda-linux-gnu-cc -Wl,-O2 -Wl,--sort-common -Wl,-z,relro -Wl,-z,now -Wl,--disable-new
-dtags -Wl,--gc-sections -Wl,-rpath,/home/work/miniconda3/lib -Wl,-rpath-link,/home/work/miniconda3/lib -L/home/work/miniconda3/lib -Wl,--as-needed -o vim -l
m -ltinfo -ldl -L/home/work/miniconda3/lib/python3.8/config-3.8-x86_64-linux-gnu -lpython3.8 -lcrypt -lpthread -ldl -lutil -lrt -lm -lm

Put the contents of :SpaceInfo below:

Current FileType:
    Global Variables:
    let g:spacevim = {
        base = '/home/work/.space-vim',
        excluded = [],
        gui = 0,
        info = '/home/work/.space-vim/core/autoload/spacevim/info.vim',
        layers_base = '/layers',
        loaded = ['spacevim', 'fzf', 'better-defaults'],
        manifest = {'spacevim': {'dir': '/home/work/.space-vim/layers/+distributions/spacevim'}, 'wasm': {'dir': '/home/work/.space-vim/layers/+lang/wasm'}, 'ctrlp'
: {'dir': '/home/work/.space-vim/layers/+vim/ctrlp'}, 'go': {'dir': '/home/work/.space-vim/layers/+lang/go'}, 'asyncomplete': {'dir': '/home/work/.space-vim/
layers/+completion/asyncomplete'}, 'code-snippets': {'dir': '/home/work/.space-vim/layers/+programming/code-snippets'}, 'graphviz': {'dir': '/home/work/.space-vim/l
ayers/+lang/graphviz'}, 'solidity': {'dir': '/home/work/.space-vim/layers/+lang/solidity'}, 'scala': {'dir': '/home/work/.space-vim/layers/+lang/scala'}, 'github':
{'dir': '/home/work/.space-vim/layers/+version-control/github'}, 'clojure': {'dir': '/home/work/.space-vim/layers/+lang/clojure'}, 'games': {'dir': '/home/zhangyine
ng/.space-vim/layers/+fun/games'}, 'tmux': {'dir': '/home/work/.space-vim/layers/+tools/tmux'}, 'javascript': {'dir': '/home/work/.space-vim/layers/+lang/javascript
'}, 'git': {'dir': '/home/work/.space-vim/layers/+version-control/git'}, 'auto-completion': {'dir': '/home/work/.space-vim/layers/+completion/auto-completion'}, 'ru
by': {'dir': '/home/work/.space-vim/layers/+lang/ruby'}, 'emoji': {'dir': '/home/work/.space-vim/layers/+fun/emoji'}, 'file-manager': {'dir': '/home/work/.sp
ace-vim/layers/+tools/file-manager'}, 'typescript': {'dir': '/home/work/.space-vim/layers/+lang/typescript'}, 'lsp': {'dir': '/home/work/.space-vim/layers/+tools/ls
p'}, 'docker': {'dir': '/home/work/.space-vim/layers/+tools/docker'}, 'deoplete': {'dir': '/home/work/.space-vim/layers/+completion/deoplete'}, 'programming': {'dir
': '/home/work/.space-vim/layers/+programming/programming'}, 'chinese': {'dir': '/home/work/.space-vim/layers/+misc/chinese'}, 'which-key': {'dir': '/home/zhangyine
ng/.space-vim/layers/+vim/which-key'}, 'syntax-checking': {'dir': '/home/work/.space-vim/layers/+checkers/syntax-checking'}, 'ycmd': {'dir': '/home/work/.space-vim/
layers/+tools/ycmd'}, 'formatting': {'dir': '/home/work/.space-vim/layers/+programming/formatting'}, 'html': {'dir': '/home/work/.space-vim/layers/+lang/html'}, 'be
tter-defaults': {'dir': '/home/work/.space-vim/layers/+distributions/better-defaults'}, 'text-align': {'dir': '/home/work/.space-vim/layers/+vim/text-align'}, 'ligh
tline': {'dir': '/home/work/.space-vim/layers/+themes/lightline'}, 'vue': {'dir': '/home/work/.space-vim/layers/+lang/vue'}, 'goyo': {'dir': '/home/work/.spa
ce-vim/layers/+fun/goyo'}, 'better-motion': {'dir': '/home/work/.space-vim/layers/+vim/better-motion'}, 'python': {'dir': '/home/work/.space-vim/layers/+lang/python
'}, 'cscope': {'dir': '/home/work/.space-vim/layers/+tools/cscope'}, 'airline': {'dir': '/home/work/.space-vim/layers/+themes/airline'}, 'ctags': {'dir': '/home/zha
ngyineng/.space-vim/layers/+tools/ctags'}, 'unite': {'dir': '/home/work/.space-vim/layers/+completion/unite'}, 'editing': {'dir': '/home/work/.space-vim/layers/+pro
gramming/editing'}, 'latex': {'dir': '/home/work/.space-vim/layers/+lang/latex'}, 'markdown': {'dir': '/home/work/.space-vim/layers/+lang/markdown'}, 'c-c++': {'dir
': '/home/work/.space-vim/layers/+lang/c-c++'}, 'erlang': {'dir': '/home/work/.space-vim/layers/+lang/erlang'}, 'elm': {'dir': '/home/work/.space-vim/layers/
+lang/elm'}, 'rust': {'dir': '/home/work/.space-vim/layers/+lang/rust'}, 'haskell': {'dir': '/home/work/.space-vim/layers/+lang/haskell'}, 'elixir': {'dir': '/home/
work/.space-vim/layers/+lang/elixir'}, 'java': {'dir': '/home/work/.space-vim/layers/+lang/java'}, 'fzf': {'dir': '/home/work/.space-vim/layers/+tools/fzf'}}
,
        nvim = 0,
        os = {'linux': 1, 'windows': 0, 'mac': 0},
        plugins = ['liuchengxu/space-vim-dark', 'liuchengxu/space-vim-theme', 'liuchengxu/vim-better-default', 'liuchengxu/eleline.vim', 'junegunn/fzf', 'junegunn/fzf.vim', 'kshe
noy/vim-signature', 'tpope/vim-rsi', 'markonm/traces.vim', 'dominikduda/vim_current_word', 't9md/vim-choosewin', 'mhinz/vim-startify', 'ntpeters/vim-better-whitespace', 'haya14bu
sa/is.vim', 'osyo-manga/vim-anzu'],
        private_base = '/private',
        speed_up_via_timer = 1,
        timer = 1,
        tmux = 1,
        topics = {'+themes': ['lightline', 'airline'], '+version-control': ['git', 'github'], '+tools': ['tmux', 'ycmd', 'file-manager', 'docker', 'ctags', 'cscope', 'fzf', 'lsp'
], '+misc': ['chinese'], '+completion': ['deoplete', 'unite', 'asyncomplete', 'auto-completion'], '+distributions': ['spacevim', 'better-defaults'], '+checkers': ['syntax-checkin
g'], '+fun': ['goyo', 'games', 'emoji'], '+lang': ['java', 'elixir', 'rust', 'ruby', 'scala', 'typescript', 'clojure', 'graphviz', 'haskell', 'html', 'markdown', 'solidity', 'lat
ex', 'c-c++', 'python', 'javascript', 'wasm', 'go', 'erlang', 'vue', 'elm'], '+programming': ['formatting', 'editing', 'code-snippets', 'programming'], '+vim': ['text-align', 'ct
rlp', 'better-motion', 'which-key']},
        version = '0.9.0',
        vim8 = 1,
    }

Problem Description

I add some functions in .spacevim as below:

function! GetJumps()
  redir => cout
  silent jumps
  redir END
  return reverse(split(cout, "\n")[1:])
endfunction
function! GoToJump(jump)
    let jumpnumber = split(a:jump, '\s\+')[0]
    execute "normal " . jumpnumber . "\<c-o>"
endfunction
command! Jumps call fzf#run(fzf#wrap({
        \ 'source': GetJumps(),
        \ 'sink': function('GoToJump')}))

And I want to use the jumps command to see the jumplists in the fzf preview. But I only see this. So I want to know how to preview the jumplist content preview. Thanks in advance.

[liuchengxu]

Use vim-clap :Clap jumps, see #442.