Add terminal_info_inline_borders option

Author: raiguard

doc/pages/options.asciidoc

@@ -385,6 +385,10 @@ are exclusively available to built-in options.
             set the maximum allowable width of an info box. set to zero for
             no limit.
 
+        *terminal_info_inline_borders*:::
+            if *yes* or *true*, borders will be drawn around info boxes with the
+            *inline* style.
+
 [[startup-info]]
 *startup_info_version* `int`::
     _default_ 0 +

src/main.cc

@@ -603,7 +603,8 @@ void register_options()
                        "    terminal_shift_function_key    int\n"
                        "    terminal_padding_char          codepoint\n"
                        "    terminal_padding_fill          bool\n"
-                       "    terminal_info_max_width        int\n",
+                       "    terminal_info_max_width        int\n"
+                       "    terminal_info_inline_borders   bool\n",
                        UserInterface::Options{});
     reg.declare_option("modelinefmt", "format string used to generate the modeline",
                        "%val{bufname} %val{cursor_line}:%val{cursor_char_column} {{context_info}} {{mode_info}} - %val{client}@[%val{session}]"_str);

src/terminal_ui.cc

@@ -1320,7 +1320,7 @@ void TerminalUI::info_show(const DisplayLine& title, const DisplayLineList& cont
     m_info.face = face;
     m_info.style = style;
 
-    const bool framed = style == InfoStyle::Prompt or style == InfoStyle::Modal;
+    const bool framed = style == InfoStyle::Prompt or style == InfoStyle::Modal or m_info_inline_borders;
     const bool assisted = style == InfoStyle::Prompt and m_assistant.size() != 0;
 
     DisplayCoord max_size = m_dimensions;
@@ -1576,6 +1576,7 @@ void TerminalUI::set_ui_options(const Options& options)
     m_padding_fill = find("terminal_padding_fill").map(to_bool).value_or(false);
 
     m_info_max_width = find("terminal_info_max_width").map(str_to_int_ifp).value_or(0);
+    m_info_inline_borders = find("terminal_info_inline_borders").map(to_bool).value_or(false);
 }
 
 }

src/terminal_ui.hh

@@ -175,6 +175,7 @@ private:
 
     ColumnCount m_status_len = 0;
     ColumnCount m_info_max_width = 0;
+    bool m_info_inline_borders = false;
 };
 
 }