From dbefd008fe702a790c7904e77d58afbf170acb8a Mon Sep 17 00:00:00 2001
From: wsdjeg <wsdjeg@outlook.com>
Date: Sun, 24 Dec 2017 21:58:39 +0800
Subject: [PATCH] Add callback for projectmanager

---
 autoload/SpaceVim/layers/lang/c.vim          | 10 ++++++++++
 autoload/SpaceVim/plugins/projectmanager.vim | 17 +++++++++++++++--
 autoload/SpaceVim/util.vim                   | 16 ++++++++++++++++
 3 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/autoload/SpaceVim/layers/lang/c.vim b/autoload/SpaceVim/layers/lang/c.vim
index 642f2ade2..42f95543d 100644
--- a/autoload/SpaceVim/layers/lang/c.vim
+++ b/autoload/SpaceVim/layers/lang/c.vim
@@ -51,7 +51,9 @@ function! SpaceVim#layers#lang#c#plugins() abort
       call add(plugins, ['tweekmonster/deoplete-clang2'])
     endif
   elseif g:spacevim_autocomplete_method ==# 'ycm'
+    " no need extra plugins
   elseif g:spacevim_autocomplete_method ==# 'completor'
+    " no need extra plugins
   elseif g:spacevim_autocomplete_method ==# 'asyncomplete'
   else
     call add(plugins, ['Rip-Rip/clang_complete'])
@@ -63,6 +65,10 @@ endfunction
 function! SpaceVim#layers#lang#c#config() abort
   call SpaceVim#plugins#runner#reg_runner('c', ['gcc -o #TEMP# %s', '#TEMP#'])
   call SpaceVim#mapping#space#regesit_lang_mappings('c', funcref('s:language_specified_mappings'))
+  call SpaceVim#plugins#projectmanager#reg_callback(funcref('s:update_clang_flag'))
+  if filereadable('.clang')
+    call s:update_clang_flag()
+  endif
 endfunction
 
 function! SpaceVim#layers#lang#c#set_variable(var) abort
@@ -84,3 +90,7 @@ function! s:language_specified_mappings() abort
         \ 'execute current file', 1)
 endfunction
 
+function! s:update_clang_flag() abort
+  
+endfunction
+
diff --git a/autoload/SpaceVim/plugins/projectmanager.vim b/autoload/SpaceVim/plugins/projectmanager.vim
index a4b07952c..484a6e7d9 100644
--- a/autoload/SpaceVim/plugins/projectmanager.vim
+++ b/autoload/SpaceVim/plugins/projectmanager.vim
@@ -48,15 +48,28 @@ function! SpaceVim#plugins#projectmanager#current_name() abort
   return get(b:, '_spacevim_project_name', '')
 endfunction
 
+" this func is called when vim-rooter change the dir, That means the project
+" is changed, so will call call the registered function.
 function! SpaceVim#plugins#projectmanager#RootchandgeCallback() abort
-
-  let project = {
+ let project = {
         \ 'path' : getcwd(),
         \ 'name' : fnamemodify(getcwd(), ':t')
         \ }
   call s:cache_project(project)
   let g:_spacevim_project_name = project.name
   let b:_spacevim_project_name = g:_spacevim_project_name
+  for callback in s:project_callback
+    call call(callback, [])
+  endfor
+endfunction
+
+let s:project_callback = []
+function! SpaceVim#plugins#projectmanager#reg_callback(func) abort
+ if type(a:func) == 2
+   call add(s:project_callback, a:func)
+ else
+   call SpaceVim#logger#warn('can not register the project callback: ' . string(a:func))
+ endif
 endfunction
 
 function! SpaceVim#plugins#projectmanager#current_root() abort
diff --git a/autoload/SpaceVim/util.vim b/autoload/SpaceVim/util.vim
index 2fcdc8d21..6c1ed8ca7 100644
--- a/autoload/SpaceVim/util.vim
+++ b/autoload/SpaceVim/util.vim
@@ -6,6 +6,22 @@ function! SpaceVim#util#globpath(path, expr) abort
   endif
 endfunction
 
+function! SpaceVim#util#findFileInParent(what, where) abort
+    let old_suffixesadd = &suffixesadd
+    let &suffixesadd = ''
+    let file = findfile(a:what, escape(a:where, ' ') . ';')
+    let &suffixesadd = old_suffixesadd
+    return file
+endfunction
+
+function! SpaceVim#util#findDirInParent(what, where) abort
+    let old_suffixesadd = &suffixesadd
+    let &suffixesadd = ''
+    let dir = finddir(a:what, escape(a:where, ' ') . ';')
+    let &suffixesadd = old_suffixesadd
+    return dir
+endfunction
+
 function! SpaceVim#util#echoWarn(msg) abort
   echohl WarningMsg
   echo a:msg