Add fall#internal#picker module for consistency

Author: lambdalisue

autoload/fall/command/Fall.vim

@@ -2,15 +2,11 @@ function! fall#command#Fall#call(args) abort
   if denops#plugin#wait('fall') isnot# 0
     return
   endif
-  let l:laststatus_saved = &laststatus
   try
-    call s:hide()
-    call fall#internal#mapping#store()
+    call fall#internal#picker#setup()
     call denops#request('fall', 'picker:command', [a:args])
   finally
-    call s:show()
-    call fall#internal#tolerant#call({ -> fall#internal#mapping#restore() })
-    call fall#internal#tolerant#call({ -> fall#internal#popup#closeall() })
+    call fall#internal#picker#teardown()
   endtry
 endfunction
 
@@ -20,13 +16,3 @@ function! fall#command#Fall#complete(arglead, cmdline, cursorpos) abort
   endif
   return denops#request('fall', 'picker:command:complete', [a:arglead, a:cmdline, a:cursorpos])
 endfunction
-
-function! s:hide() abort
-  call fall#internal#tolerant#call({ -> fall#internal#msgarea#hide() })
-  call fall#internal#tolerant#call({ -> fall#internal#cursor#hide() })
-endfunction
-
-function! s:show() abort
-  call fall#internal#tolerant#call({ -> fall#internal#msgarea#show() })
-  call fall#internal#tolerant#call({ -> fall#internal#cursor#show() })
-endfunction

autoload/fall/command/FallResume.vim

@@ -2,15 +2,11 @@ function! fall#command#FallResume#call(filter) abort
   if denops#plugin#wait('fall') isnot# 0
     return
   endif
-  let l:laststatus_saved = &laststatus
   try
-    call s:hide()
-    call fall#internal#mapping#store()
+    call fall#internal#picker#setup()
     call denops#request('fall', 'picker:resume:command', [a:filter])
   finally
-    call s:show()
-    call fall#internal#tolerant#call({ -> fall#internal#mapping#restore() })
-    call fall#internal#tolerant#call({ -> fall#internal#popup#closeall() })
+    call fall#internal#picker#teardown()
   endtry
 endfunction
 
@@ -20,13 +16,3 @@ function! fall#command#FallResume#complete(arglead, cmdline, cursorpos) abort
   endif
   return denops#request('fall', 'picker:resume:command:complete', [a:arglead, a:cmdline, a:cursorpos])
 endfunction
-
-function! s:hide() abort
-  call fall#internal#tolerant#call({ -> fall#internal#msgarea#hide() })
-  call fall#internal#tolerant#call({ -> fall#internal#cursor#hide() })
-endfunction
-
-function! s:show() abort
-  call fall#internal#tolerant#call({ -> fall#internal#msgarea#show() })
-  call fall#internal#tolerant#call({ -> fall#internal#cursor#show() })
-endfunction

autoload/fall/internal/picker.vim

@@ -0,0 +1,12 @@
+function! fall#internal#picker#setup() abort
+  call fall#internal#tolerant#call({ -> fall#internal#msgarea#hide() })
+  call fall#internal#tolerant#call({ -> fall#internal#cursor#hide() })
+  call fall#internal#mapping#store()
+endfunction
+
+function! fall#internal#picker#teardown() abort
+  call fall#internal#tolerant#call({ -> fall#internal#msgarea#show() })
+  call fall#internal#tolerant#call({ -> fall#internal#cursor#show() })
+  call fall#internal#tolerant#call({ -> fall#internal#mapping#restore() })
+  call fall#internal#tolerant#call({ -> fall#internal#popup#closeall() })
+endfunction