From 20afe48edd7fdb0442bb0c305a3f398343774fa4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20F=2E=20Sch=C3=B6nitzer?= <michael@schoenitzer.de>
Date: Sun, 9 Jul 2017 21:21:50 +0200
Subject: [PATCH] Add comment & binding for in-/decrease Todo-status

---
 autoload/vimwiki/lst.vim | 72 ++++++++++++++++++++++++++++++++++++++++
 ftplugin/vimwiki.vim     | 19 +++++++++++
 2 files changed, 91 insertions(+)

diff --git a/autoload/vimwiki/lst.vim b/autoload/vimwiki/lst.vim
index 4a75f3f..2bf9f31 100644
--- a/autoload/vimwiki/lst.vim
+++ b/autoload/vimwiki/lst.vim
@@ -808,6 +808,78 @@ function! s:remove_cb(item) "{{{
   return item
 endfunction "}}}
 
+
+"Increment checkbox between [ ] and [X]
+"in the lines of the given range
+function! vimwiki#lst#decrement_cb(from_line, to_line) "{{{
+  let from_item = s:get_corresponding_item(a:from_line)
+  if from_item.type == 0
+    return
+  endif
+
+  let parent_items_of_lines = []
+
+  if from_item.cb != ''
+
+    "if from_line has CB, toggle it and set all siblings to the same new state
+    let rate_first_line = s:get_rate(from_item)
+    let n=len(g:vimwiki_listsyms_list)
+    let new_rate = max([rate_first_line - 100/(n-1)-1, 0])
+
+    for cur_ln in range(from_item.lnum, a:to_line)
+      let cur_item = s:get_item(cur_ln)
+      if cur_item.type != 0 && cur_item.cb != ''
+        call s:set_state_plus_children(cur_item, new_rate)
+        let cur_parent_item = s:get_parent(cur_item)
+        if index(parent_items_of_lines, cur_parent_item) == -1
+          call insert(parent_items_of_lines, cur_parent_item)
+        endif
+      endif
+    endfor
+
+  endif
+
+  for parent_item in parent_items_of_lines
+    call s:update_state(parent_item)
+  endfor
+
+endfunction "}}}
+"Increment checkbox between [ ] and [X]
+"in the lines of the given range
+function! vimwiki#lst#increment_cb(from_line, to_line) "{{{
+  let from_item = s:get_corresponding_item(a:from_line)
+  if from_item.type == 0
+    return
+  endif
+
+  let parent_items_of_lines = []
+
+  if from_item.cb != ''
+
+    "if from_line has CB, toggle it and set all siblings to the same new state
+    let rate_first_line = s:get_rate(from_item)
+    let n=len(g:vimwiki_listsyms_list)
+    let new_rate = min([rate_first_line + 100/(n-1)+1, 100])
+
+    for cur_ln in range(from_item.lnum, a:to_line)
+      let cur_item = s:get_item(cur_ln)
+      if cur_item.type != 0 && cur_item.cb != ''
+        call s:set_state_plus_children(cur_item, new_rate)
+        let cur_parent_item = s:get_parent(cur_item)
+        if index(parent_items_of_lines, cur_parent_item) == -1
+          call insert(parent_items_of_lines, cur_parent_item)
+        endif
+      endif
+    endfor
+
+  endif
+
+  for parent_item in parent_items_of_lines
+    call s:update_state(parent_item)
+  endfor
+
+endfunction "}}}
+
 "Toggles checkbox between [ ] and [X] or creates one
 "in the lines of the given range
 function! vimwiki#lst#toggle_cb(from_line, to_line) "{{{
diff --git a/ftplugin/vimwiki.vim b/ftplugin/vimwiki.vim
index 9262c5e..3fb0095 100644
--- a/ftplugin/vimwiki.vim
+++ b/ftplugin/vimwiki.vim
@@ -295,6 +295,8 @@ command! -buffer -range -nargs=1 VimwikiChangeSymbolTo call vimwiki#lst#change_m
 command! -buffer -range -nargs=1 VimwikiListChangeSymbolI call vimwiki#lst#change_marker(<line1>, <line2>, <f-args>, 'i')
 command! -buffer -nargs=1 VimwikiChangeSymbolInListTo call vimwiki#lst#change_marker_in_list(<f-args>)
 command! -buffer -range VimwikiToggleListItem call vimwiki#lst#toggle_cb(<line1>, <line2>)
+command! -buffer -range VimwikiIncrementListItem call vimwiki#lst#increment_cb(<line1>, <line2>)
+command! -buffer -range VimwikiDecrementListItem call vimwiki#lst#decrement_cb(<line1>, <line2>)
 command! -buffer -range -nargs=+ VimwikiListChangeLvl call vimwiki#lst#change_level(<line1>, <line2>, <f-args>)
 command! -buffer -range VimwikiRemoveSingleCB call vimwiki#lst#remove_cb(<line1>, <line2>)
 command! -buffer VimwikiRemoveCBInList call vimwiki#lst#remove_cb_in_list()
@@ -445,6 +447,23 @@ nnoremap <silent><script><buffer>
 vnoremap <silent><script><buffer>
       \ <Plug>VimwikiToggleListItem :VimwikiToggleListItem<CR>
 
+if !hasmapto('<Plug>VimwikiIncrementListItem')
+  nmap <silent><buffer> <M-+> <Plug>VimwikiIncrementListItem
+  vmap <silent><buffer> <M-+> <Plug>VimwikiIncrementListItem
+endif
+if !hasmapto('<Plug>VimwikiDecrementListItem')
+  nmap <silent><buffer> <M--> <Plug>VimwikiDecrementListItem
+  vmap <silent><buffer> <M--> <Plug>VimwikiDecrementListItem
+endif
+nnoremap <silent><script><buffer>
+      \ <Plug>VimwikiIncrementListItem :VimwikiIncrementListItem<CR>
+vnoremap <silent><script><buffer>
+      \ <Plug>VimwikiIncrementListItem :VimwikiIncrementListItem<CR>
+nnoremap <silent><script><buffer>
+      \ <Plug>VimwikiDecrementListItem :VimwikiDecrementListItem<CR>
+vnoremap <silent><script><buffer>
+      \ <Plug>VimwikiDecrementListItem :VimwikiDecrementListItem<CR>
+
 if !hasmapto('<Plug>VimwikiDecreaseLvlSingleItem', 'i')
   imap <silent><buffer> <C-D>
         \ <Plug>VimwikiDecreaseLvlSingleItem