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[ruby/reline] Fix dialog scrollbar rendering position and disappearing bug

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e21b69ade4
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tompng 2022-10-24 04:57:27 +09:00 • committed by git
parent 4fa7d38324
commit a712f2a2a0
1 changed files with 4 additions and 4 deletions
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8
lib/reline/line_editor.rb
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@ -705,17 +705,17 @@ class Reline::LineEditor
dialog.scroll_top = dialog.pointer
end
pointer = dialog.pointer - dialog.scroll_top
else
dialog.scroll_top = 0
end
dialog.contents = dialog.contents[dialog.scroll_top, height]
end
if dialog.contents and dialog.scroll_top >= dialog.contents.size
dialog.scroll_top = dialog.contents.size - height
end
if dialog_render_info.scrollbar and dialog_render_info.contents.size > height
bar_max_height = height * 2
moving_distance = (dialog_render_info.contents.size - height) * 2
position_ratio = dialog.scroll_top.zero? ? 0.0 : ((dialog.scroll_top * 2).to_f / moving_distance)
bar_height = (bar_max_height * ((dialog.contents.size * 2).to_f / (dialog_render_info.contents.size * 2))).floor.to_i
bar_height = 1 if bar_height.zero?
dialog.scrollbar_pos = ((bar_max_height - bar_height) * position_ratio).floor.to_i
else
dialog.scrollbar_pos = nil
@ -757,7 +757,7 @@ class Reline::LineEditor
str_width = dialog.width - (dialog.scrollbar_pos.nil? ? 0 : @block_elem_width)
str = padding_space_with_escape_sequences(Reline::Unicode.take_range(item, 0, str_width), str_width)
@output.write "\e[#{bg_color}m\e[#{fg_color}m#{str}"
if dialog.scrollbar_pos and (dialog.scrollbar_pos != old_dialog.scrollbar_pos or dialog.column != old_dialog.column)
if dialog.scrollbar_pos
@output.write "\e[37m"
if dialog.scrollbar_pos <= (i * 2) and (i * 2 + 1) < (dialog.scrollbar_pos + bar_height)
@output.write @full_block