Change svelte provider, fixes #700

1 files changed, 71 insertions, 0 deletions

diff --git a/autoload/svelte.vim b/autoload/svelte.vim
new file mode 100644
index 00000000..60d31469
--- /dev/null
+++ b/autoload/svelte.vim
@@ -0,0 +1,71 @@
+if polyglot#init#is_disabled(expand('<sfile>:p'), 'svelte', 'autoload/svelte.vim')
+  finish
+endif
+
+let s:name = 'vim-svelte-plugin'
+let s:debug = exists("g:vim_svelte_plugin_debug")
+      \ && g:vim_svelte_plugin_debug == 1
+
+function! svelte#GetConfig(name, default)
+  let name = 'g:vim_svelte_plugin_'.a:name
+  return exists(name) ? eval(name) : a:default
+endfunction
+
+" Since svelte#Log and svelte#GetConfig are always called 
+" in syntax and indent files,
+" this file will be sourced when opening the first svelte file
+if exists('##CursorMoved') && exists('*OnChangeSvelteSubtype')
+  augroup vim_svelte_plugin
+    autocmd!
+    autocmd CursorMoved,CursorMovedI,WinEnter *.svelte
+          \ call s:CheckSubtype()
+  augroup END
+
+  let s:subtype = ''
+  function! s:CheckSubtype()
+    let subtype = GetSvelteSubtype()
+
+    if s:subtype != subtype
+      call OnChangeSvelteSubtype(subtype)
+      let s:subtype = subtype
+    endif
+  endfunction
+endif
+
+function! s:SynsEOL(lnum)
+  let lnum = prevnonblank(a:lnum)
+  let cnum = strlen(getline(lnum))
+  return map(synstack(lnum, cnum), 'synIDattr(v:val, "name")')
+endfunction
+
+function! GetSvelteSubtype()
+  let lnum = line('.')
+  let cursyns = s:SynsEOL(lnum)
+  let syn = !empty(cursyns) ? get(cursyns, 0, '') : ''
+
+  let subtype = matchstr(syn, '\w\+\zeSvelte')
+  if subtype =~ 'css\w\+'
+    " For cssScss, cssLess, ...
+    let subtype = subtype[3:]
+  endif
+  let subtype = tolower(subtype)
+  return subtype
+endfunction
+
+function! GetSvelteTag(...)
+  let lnum = a:0 > 0 ? a:1 : line('.')
+  let cursyns = s:SynsEOL(lnum)
+  let syn = get(cursyns, 0, '')
+
+  if syn =~ 'SvelteTemplate'
+    let tag = 'template'
+  elseif syn =~ 'SvelteScript'
+    let tag = 'script'
+  elseif syn =~ 'SvelteStyle'
+    let tag = 'style'
+  else
+    let tag = ''
+  endif
+
+  return tag
+endfunction