commit f0290b08ddd4719b5b0c9129d2566d317f597b9b
parent 51637ec6d442e300d9280980eebccaf11aec198e
Author: Martin Grenfell <martin_grenfell@msn.com>
Date: Tue, 21 Jul 2009 19:23:44 +1200
add another api callback to determine whether menu items should appear
this way we can e.g. not show the git submenu unless a git repo is
actually present
Diffstat:
1 file changed, 55 insertions(+), 17 deletions(-)
diff --git a/plugin/NERD_tree.vim b/plugin/NERD_tree.vim
@@ -429,7 +429,6 @@ endfunction
"CLASS: MenuCallback {{{2
"============================================================
let s:MenuCallback = {}
-
"FUNCTION: MenuCallback.All() {{{3
function! s:MenuCallback.All()
if !exists("s:menuCallbacks")
@@ -438,16 +437,58 @@ function! s:MenuCallback.All()
return s:menuCallbacks
endfunction
-"FUNCTION: MenuCallback.Create(text, shortcut, callback) {{{3
-function! s:MenuCallback.Create(text, shortcut, callback)
+"FUNCTION: MenuCallback.AllEnabledCallbacks() {{{3
+function! s:MenuCallback.AllEnabledCallbacks()
+ let toReturn = []
+ for i in s:MenuCallback.All()
+ if i.enabled()
+ call add(toReturn, i)
+ endif
+ endfor
+ return toReturn
+endfunction
+
+"FUNCTION: MenuCallback.FindByShortcut(shortcut) {{{3
+function! s:MenuCallback.FindByShortcut(shortcut)
+ for i in s:MenuCallback.All()
+ if i.shortcut ==# a:shortcut
+ return i
+ endif
+ endfor
+ return {}
+endfunction
+
+"FUNCTION: MenuCallback.Create(options) {{{3
+function! s:MenuCallback.Create(options)
let newCallback = {}
let newCallback = copy(self)
- let newCallback.text = a:text
- let newCallback.shortcut = a:shortcut
- let newCallback.callback = a:callback
+
+ let shortcut = a:options['shortcut']
+ let callback = a:options['callback']
+
+
+ let newCallback.text = a:options['text']
+ let newCallback.shortcut = a:options['shortcut']
+ let newCallback.callback = a:options['callback']
+ if has_key(a:options, 'check_to_enable_callback')
+ let newCallback.check_to_enable_callback = a:options['check_to_enable_callback']
+ endif
call add(s:MenuCallback.All(), newCallback)
endfunction
+"FUNCTION: MenuCallback.enabled() {{{3
+function! s:MenuCallback.enabled()
+ if has_key(self, "check_to_enable_callback")
+ return {self.check_to_enable_callback}()
+ endif
+ return 1
+endfunction
+
+"FUNCTION: MenuCallback.execute() {{{3
+function! s:MenuCallback.execute()
+ call {self.callback}()
+endfunction
+
"FUNCTION: MenuCallback.ShowMenu() {{{3
function! s:MenuCallback.ShowMenu()
let curNode = s:TreeFileNode.GetSelected()
@@ -459,23 +500,20 @@ function! s:MenuCallback.ShowMenu()
let prompt = "NERDTree Menu\n" .
\ "==========================================================\n"
- for i in s:MenuCallback.All()
+ for i in s:MenuCallback.AllEnabledCallbacks()
let prompt .= i.text . "\n"
endfor
echo prompt
- let choice = nr2char(getchar())
+ let callback = s:MenuCallback.FindByShortcut(nr2char(getchar()))
+ if !empty(callback) && callback.enabled()
+ redraw
+ call callback.execute()
+ endif
- for i in s:MenuCallback.All()
- if choice ==# i.shortcut
- exec "call " . i.callback . "()"
- return
- endif
- endfor
endfunction
-
"CLASS: TreeFileNode {{{2
"This class is the parent of the TreeDirNode class and constitures the
"'Component' part of the composite design pattern between the treenode
@@ -2388,8 +2426,8 @@ function! NERDTreeGetCurrentPath()
endif
endfunction
-function! NERDTreeAddMenuItem(text, shortcut, callback)
- call s:MenuCallback.Create(a:text, a:shortcut, a:callback)
+function! NERDTreeAddMenuItem(options)
+ call s:MenuCallback.Create(a:options)
endfunction
function! NERDTreeRender()
