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allow plugins to override the default mappings

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This commit is contained in:
Martin Grenfell 2014-07-15 18:54:57 +01:00
parent aa831e242b
commit f9a933991d
2 changed files with 10 additions and 1 deletions
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3
doc/NERD_tree.txt
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@ -1060,6 +1060,9 @@ NERDTreeAddKeyMap({options}) *NERDTreeAddKeyMap()*
"callback" - the function the new mapping will be bound to "callback" - the function the new mapping will be bound to
"quickhelpText" - the text that will appear in the quickhelp (see "quickhelpText" - the text that will appear in the quickhelp (see
|NERDTree-?|) |NERDTree-?|)
"override" - if 1 then this new mapping will override whatever previous
mapping was defined for the key/scope combo. Useful for overriding the
default mappings.
Additionally, a "scope" argument may be supplied. This constrains the Additionally, a "scope" argument may be supplied. This constrains the
mapping so that it is only activated if the cursor is on a certain object. mapping so that it is only activated if the cursor is on a certain object.

8
lib/nerdtree/key_map.vim
View File

@ -134,8 +134,14 @@ endfunction
"FUNCTION: KeyMap.Create(options) {{{1 "FUNCTION: KeyMap.Create(options) {{{1
function! s:KeyMap.Create(options) function! s:KeyMap.Create(options)
let newKeyMap = copy(self)
let opts = extend({'scope': 'all', 'quickhelpText': ''}, copy(a:options)) let opts = extend({'scope': 'all', 'quickhelpText': ''}, copy(a:options))
"dont override other mappings unless the 'override' option is given
if get(opts, 'override', 0) == 0 && !empty(s:KeyMap.FindFor(opts['key'], opts['scope']))
return
end
let newKeyMap = copy(self)
let newKeyMap.key = opts['key'] let newKeyMap.key = opts['key']
let newKeyMap.quickhelpText = opts['quickhelpText'] let newKeyMap.quickhelpText = opts['quickhelpText']
let newKeyMap.callback = opts['callback'] let newKeyMap.callback = opts['callback']