https://git.ruby-lang.org/ruby.git/commit/?id=c98b2e14c7

From c98b2e14c71022ca46999a26fbde9668440c4347 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Tue, 31 Aug 2021 04:23:17 +0900
Subject: [ruby/reline] Pass "dialog" to context to get "dialog.scroll_top"
 later

https://github.com/ruby/reline/commit/d81f29a134
---
 lib/reline.rb             | 2 +-
 lib/reline/line_editor.rb | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/reline.rb b/lib/reline.rb
index fd36042..cf668c7 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -220,7 +220,7 @@ module Reline https://github.com/ruby/ruby/blob/trunk/lib/reline.rb#L220
       cursor_pos_to_render = Reline::CursorPos.new(x, y)
       if context and context.is_a?(Array)
         context.clear
-        context.push(cursor_pos_to_render, result, pointer)
+        context.push(cursor_pos_to_render, result, pointer, dialog)
       end
       DialogRenderInfo.new(pos: cursor_pos_to_render, contents: result, pointer: pointer, height: 15)
     }
diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index 321ad91..fedbd94 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -499,6 +499,14 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L499
       @line_editor.call_completion_proc_with_checking_args(pre, target, post)
     end
 
+    def set_dialog(dialog)
+      @dialog = dialog
+    end
+
+    def dialog
+      @dialog
+    end
+
     def set_cursor_pos(col, row)
       @cursor_pos.x = col
       @cursor_pos.y = row
@@ -544,6 +552,7 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L552
     end
 
     def call
+      @proc_scope.set_dialog(self)
       @proc_scope.call
     end
   end
-- 
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