🐛 Do NOT invoke RPC functions directly from components

Otherwise components cause this kind of issues.

Shougo/ddu.vim#14

autoload/gin/component/branch.vim

@@ -1,17 +1,32 @@
+let s:ascii = ''
+let s:unicode = ''
+
 function! gin#component#branch#ascii(...) abort
+  let cwd = a:0 ? a:1 : ''
+  call timer_start(0, { -> s:update_ascii(cwd) })
+  return s:ascii
+endfunction
+
+function! gin#component#branch#unicode(...) abort
+  let cwd = a:0 ? a:1 : ''
+  call timer_start(0, { -> s:update_unicode(cwd) })
+  return s:unicode
+endfunction
+
+function! s:update_ascii(cwd) abort
   try
-    let cwd = a:0 ? a:1 : ''
-    return denops#request('gin', 'component:branch:ascii', [cwd])
+    let s:ascii = denops#request('gin', 'component:branch:ascii', [a:cwd])
   catch
-    return ""
+    let s:ascii = ''
   endtry
+  call gin#util#redraw_components()
 endfunction
 
-function! gin#component#branch#unicode(...) abort
+function! s:update_unicode(cwd) abort
   try
-    let cwd = a:0 ? a:1 : ''
-    return denops#request('gin', 'component:branch:unicode', [cwd])
+    let s:unicode = denops#request('gin', 'component:branch:unicode', [a:cwd])
   catch
-    return ""
+    let s:unicode = ''
   endtry
+  call gin#util#redraw_components()
 endfunction

autoload/gin/component/traffic.vim

@@ -1,17 +1,32 @@
+let s:ascii = ''
+let s:unicode = ''
+
 function! gin#component#traffic#ascii(...) abort
+  let cwd = a:0 ? a:1 : ''
+  call timer_start(0, { -> s:update_ascii(cwd) })
+  return s:ascii
+endfunction
+
+function! gin#component#traffic#unicode(...) abort
+  let cwd = a:0 ? a:1 : ''
+  call timer_start(0, { -> s:update_unicode(cwd) })
+  return s:unicode
+endfunction
+
+function! s:update_ascii(cwd) abort
   try
-    let cwd = a:0 ? a:1 : ''
-    return denops#request('gin', 'component:traffic:ascii', [cwd])
+    let s:ascii = denops#request('gin', 'component:traffic:ascii', [a:cwd])
   catch
-    return ""
+    let s:ascii = ''
   endtry
+  call gin#util#redraw_components()
 endfunction
 
-function! gin#component#traffic#unicode(...) abort
+function! s:update_unicode(cwd) abort
   try
-    let cwd = a:0 ? a:1 : ''
-    return denops#request('gin', 'component:traffic:unicode', [cwd])
+    let s:unicode = denops#request('gin', 'component:traffic:unicode', [a:cwd])
   catch
-    return ""
+    let s:unicode = ''
   endtry
+  call gin#util#redraw_components()
 endfunction

autoload/gin/component/worktree.vim

@@ -1,17 +1,32 @@
+let s:name = ''
+let s:full = ''
+
 function! gin#component#worktree#full(...) abort
+  let cwd = a:0 ? a:1 : ''
+  call timer_start(0, { -> s:update_full(cwd) })
+  return s:full
+endfunction
+
+function! gin#component#worktree#name(...) abort
+  let cwd = a:0 ? a:1 : ''
+  call timer_start(0, { -> s:update_name(cwd) })
+  return s:name
+endfunction
+
+function! s:update_name(cwd) abort
   try
-    let cwd = a:0 ? a:1 : ''
-    return denops#request('gin', 'component:worktree:full', [cwd])
+    let s:name = denops#request('gin', 'component:worktree:name', [a:cwd])
   catch
-    return ""
+    let s:name = ''
   endtry
+  call gin#util#redraw_components()
 endfunction
 
-function! gin#component#worktree#name(...) abort
+function! s:update_full(cwd) abort
   try
-    let cwd = a:0 ? a:1 : ''
-    return denops#request('gin', 'component:worktree:name', [cwd])
+    let s:full = denops#request('gin', 'component:worktree:full', [a:cwd])
   catch
-    return ""
+    let s:full = ''
   endtry
+  call gin#util#redraw_components()
 endfunction

autoload/gin/util.vim

@@ -1,3 +1,5 @@
+let s:redraw_component_timer = 0
+
 function! gin#util#reload(...) abort
   let bufnr = a:0 ? a:1 : bufnr()
   call denops#plugin#wait('gin')
@@ -8,3 +10,13 @@ function! gin#util#expand(expr) abort
   call denops#plugin#wait('gin')
   return denops#request('gin', 'util:expand', [a:expr])
 endfunction
+
+function! gin#util#redraw_components() abort
+  silent! call timer_stop(s:redraw_component_timer)
+  let s:redraw_component_timer = timer_start(
+        \ g:gin#util#redraw_components_delay,
+        \ { -> execute('redrawstatus | redrawtabline') },
+        \)
+endfunction
+
+let g:gin#util#redraw_components_delay = get(g:, 'gin#util#redraw_components_delay', 100)