如何使 Vim 插件 NERDTree 的 <CR> 表現得更像 `go`？ (How to make Vim plugin NERDTree's <CR> behave more like `go`?)

問題描述

如何使 Vim 插件 NERDTree 的 表現得更像 go？ (How to make Vim plugin NERDTree's behave more like go?)

在 NERDTree 中， 與快捷方式 o 相同，在其幫助文檔中描述如下：

Default key: o
Map option: NERDTreeMapActivateNode
Applies to: files and directories.

If a file node is selected, it is opened in the previous window.

If a directory is selected it is opened or closed depending on its current
state.

If a bookmark that links to a directory is selected then that directory
becomes the new root.

If a bookmark that links to a file is selected then that file is opened in the
previous window.

我想打開一個文件，光標只保留在 NERDTree 中。

我發現這只是快捷鍵 go 所做的操作。但是go只能應用於files，而o應用於文件和目錄。

在 NERDTree 的幫助文檔中：

Default key: go
Map option: None
Applies to: files.

If a file node is selected, it is opened in the previous window, but the
cursor does not move.

The key combo for this mapping is always "g" + NERDTreeMapActivateNode (see
NERDTree‑o).

更具體地說，我希望 在應用於 目錄時表現得像 o 和 go 當 files.

沒有 Customisation 標誌可以做到這一點。

有沒有什麼好的方法來實現它，包括修改源腳本？

非常感謝！

參考解法

方法 1:

It seems that it can be accomplished using custom mappings which unfortunately cannot be defined usual way in your .vimrc. You need to distinguish if the node is a 'FileNode' or a 'DirNode' so the mappings must be specified in a file like ~/.vim/nerdtree_plugin/mymappings.vim.

call NERDTreeAddKeyMap({
    \ 'key': '<CR>', 
    \ 'scope': 'DirNode',
    \ 'callback': 'NERDTreeCustomActivateDirNode',
    \ 'quickhelpText': 'open or close a dirctory',
    \ 'override': 1 })

function! NERDTreeCustomActivateDirNode(node)
    call a:node.activate()
endfunction

call NERDTreeAddKeyMap({
    \ 'key': '<CR>',
    \ 'scope': 'FileNode',
    \ 'callback': 'NERDTreeCustomPreviewNodeCurrent',
    \ 'quickhelpText': 'open a file with the cursor in the NERDTree',
    \ 'override': 1 })

function! NERDTreeCustomPreviewNodeCurrent(node)
    call a:node.open({'stay': 1, 'where': 'p', 'keepopen': 1})
endfunction

I found the inspiration in /autoload/nerdtree/ui_glue.vim.

• More information in :h NERDTreeKeymapAPI.

(I don't have NERDTree so it is not tested.)

(by Daizy、ryuichiro)

參考文件

1. How to make Vim plugin NERDTree's behave more like go? (CC BY‑SA 2.5/3.0/4.0)