1 files changed, 103 insertions, 0 deletions
diff --git a/vim/bundle/vim-addon-mw-utils/autoload/tovl/scratch_buffer.vim b/vim/bundle/vim-addon-mw-utils/autoload/tovl/scratch_buffer.vim
new file mode 100644
index 0000000..217dca1
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+++ b/vim/bundle/vim-addon-mw-utils/autoload/tovl/scratch_buffer.vim
@@ -0,0 +1,103 @@
+" old code
+
+augroup TOVLWrite
+augroup end
+
+" =========== scratch buffer =========================================
+" a scratch buffer is a temporary buffer where the user can enter some text
+" It can be used to get commit messages, edit configuration options and so on
+
+function! tovl#scratch_buffer#KeepIntactLineNr()
+  let i = 0
+  while getline(i)!= b:keepIntact && i < line('$')
+    let i = i+1
+  endwhile
+  if i > line('$')
+    return -1
+  else
+    return i
+  endif
+endfunction
+
+" opens a buffer and runs an action when the buffer is written
+" keys: 
+"  name :   the name of the buffer
+"  onWrite : will be called on write
+"            onWrite is responsible for setlocal nomodified to indicate that
+"            saving has been successful
+"  help  : callback returning additional information lines
+"  getContent : callback returning lines
+"  cmds    : extra commands to be run (optional)
+"            (maybe you prefer adding them the default way afer the
+"            ScratchBuffer call. They'll be rerun on GetContents
+"  sp_cmd  : the command to use to create the new buffer. Defaults to :e
+"  buftype : ...
+"  modifiable : 1 / 0 defaults to 1
+function! tovl#scratch_buffer#ScratchBuffer(opts)
+  let a:opts['name'] = get(a:opts,'name', 'strach_buffer_without_name')
+  exec get(a:opts, 'sp_cmd', 'e').' '.escape(a:opts['name'],' ')
+  let b:settings = a:opts
+  let b:settings['modifiable'] = get(a:opts,'modifiable', 1)
+  setlocal buftype=acwrite
+  command! -buffer -nargs=0 Help call tovl#scratch_buffer#Help()
+
+  " setup write notification
+  au TOVLWrite BufWriteCmd <buffer> call tovl#scratch_buffer#Write()
+
+  if has_key(a:opts,'getContent')
+    command! -buffer -nargs=0 GetContents call tovl#scratch_buffer#GetContents()
+    GetContents
+    if !b:settings['modifiable']
+      setlocal nomodifiable
+    endif
+  endif
+  "let u=&undolevels
+  "setlocal undolevels=-1
+  "exec 'setlocal undolevels='.u
+
+  " mark buffer as not modified
+  setlocal nomodified
+
+  au BufReadCmd <buffer> GetContents
+
+  " run addittional commands
+  for cmd in get(a:opts,'cmds',[])
+    exec cmd
+  endfor
+  silent echo get(a:opts,'echo_help', "type :Help for help")
+endfunction
+
+" =========== utility functions ======================================
+
+function! tovl#scratch_buffer#Write()
+  if has_key(b:settings, 'onWrite')
+    call funcref#Call(b:settings['onWrite'])
+  else
+    echo "don't know how to write. Option hasn't been passed"
+  endif
+endfunction
+
+function! tovl#scratch_buffer#GetContents()
+  setlocal modifiable
+  " empty buffer
+  %g!//d
+  call append(0, funcref#Call(b:settings['getContent']))
+  if !b:settings['modifiable']
+    setlocal nomodifiable
+  endif
+  for cmd in get(b:settings,'cmds',[])
+    exec cmd
+  endfor
+endfunction
+
+function! tovl#scratch_buffer#Help()
+  let help = ["use :e! to reload contents, ZZ or :w(q) to write and quit"
+          \ ,""
+          \ ,"Help for this scratch buffer:"
+          \ ,"=======================================================","",""]
+    \ + funcref#Call(get(b:settings, 'help', []))
+  call tovl#scratch_buffer#ScratchBuffer({
+        \ 'name' : "return Help of ".b:settings['name'],
+        \ 'getContent' : help
+        \ })
+endfunction