https://git.ruby-lang.org/ruby.git/commit/?id=544cd3fb91

From 544cd3fb910ff41cdc87c70edf1d00e4f6d5b435 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Sun, 5 Sep 2021 23:33:59 +0900
Subject: [ruby/reline] Support oneshot key bindings config for key_trap of
 dialog callbacks

https://github.com/ruby/reline/commit/5f1141b693
---
 lib/reline/config.rb      | 12 +++++++++++-
 lib/reline/line_editor.rb | 19 ++++++++++++++-----
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/lib/reline/config.rb b/lib/reline/config.rb
index d859aeb..ee73143 100644
--- a/lib/reline/config.rb
+++ b/lib/reline/config.rb
@@ -50,6 +50,7 @@ class Reline::Config https://github.com/ruby/ruby/blob/trunk/lib/reline/config.rb#L50
     @additional_key_bindings[:emacs] = {}
     @additional_key_bindings[:vi_insert] = {}
     @additional_key_bindings[:vi_command] = {}
+    @oneshot_key_bindings = {}
     @skip_section = nil
     @if_stack = nil
     @editing_mode_label = :emacs
@@ -75,6 +76,7 @@ class Reline::Config https://github.com/ruby/ruby/blob/trunk/lib/reline/config.rb#L76
     @additional_key_bindings.keys.each do |key|
       @additional_key_bindings[key].clear
     end
+    @oneshot_key_bindings.clear
     reset_default_key_bindings
   end
 
@@ -149,7 +151,15 @@ class Reline::Config https://github.com/ruby/ruby/blob/trunk/lib/reline/config.rb#L151
 
   def key_bindings
     # override @key_actors[@editing_mode_label].default_key_bindings with @additional_key_bindings[@editing_mode_label]
-    @key_actors[@editing_mode_label].default_key_bindings.merge(@additional_key_bindings[@editing_mode_label])
+    @key_actors[@editing_mode_label].default_key_bindings.merge(@additional_key_bindings[@editing_mode_label]).merge(@oneshot_key_bindings)
+  end
+
+  def add_oneshot_key_binding(keystroke, target)
+    @oneshot_key_bindings[keystroke] = target
+  end
+
+  def reset_oneshot_key_bindings
+    @oneshot_key_bindings.clear
   end
 
   def add_default_key_binding_by_keymap(keymap, keystroke, target)
diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index 21db97f..c2ef197 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -550,8 +550,9 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L550
     attr_reader :name, :contents, :width
     attr_accessor :scroll_top, :column, :vertical_offset, :lines_backup, :trap_key
 
-    def initialize(name, proc_scope)
+    def initialize(name, config, proc_scope)
       @name = name
+      @config = config
       @proc_scope = proc_scope
       @width = nil
       @scroll_top = 0
@@ -575,13 +576,21 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L576
     def call(key)
       @proc_scope.set_dialog(self)
       @proc_scope.set_key(key)
-      @proc_scope.call
+      dialog_render_info = @proc_scope.call
+      if @trap_key
+        if @trap_key.is_a?(Array)
+          @config.add_oneshot_key_binding(@trap_key, @name)
+        elsif @trap_key.is_a?(Integer) or @trap_key.is_a?(Reline::Key)
+          @config.add_oneshot_key_binding([@trap_key], @name)
+        end
+      end
+      dialog_render_info
     end
   end
 
   def add_dialog_proc(name, p, context = nil)
     return if @dialogs.any? { |d| d.name == name }
-    @dialogs << Dialog.new(name, DialogProcScope.new(self, @config, p, context))
+    @dialogs << Dialog.new(name, @config, DialogProcScope.new(self, @config, p, context))
   end
 
   DIALOG_HEIGHT = 20
@@ -1497,9 +1506,9 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L1506
 
   def input_key(key)
     @last_key = key
+    @config.reset_oneshot_key_bindings
     @dialogs.each do |dialog|
-      # The dialog will intercept the key if trap_key is set.
-      if dialog.trap_key and dialog.trap_key.match?(key)
+      if key.char.instance_of?(Symbol) and key.char == dialog.name
         return
       end
     end
-- 
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