core: add bare display mode (for easy text selection and click on URLs)

New key: alt+"!", to swith to bare display (same key to come back to
standard display).

New options:
- weechat.look.bare_display_exit_on_input (default: on): by default
  any changes in input will return to standard display
- weechat.look.bare_display_time_format (default: "%H:%M"): the format
  of time used in bare display.

src/core/wee-command.c

@@ -1365,6 +1365,9 @@ COMMAND_CALLBACK(cursor)
     (void) buffer;
     (void) argv_eol;
 
+    if (gui_window_bare_display)
+        return WEECHAT_RC_OK;
+
     if (argc == 1)
     {
         gui_cursor_mode_toggle ();
@@ -6364,6 +6367,13 @@ COMMAND_CALLBACK(window)
         return WEECHAT_RC_OK;
     }
 
+    /* bare display */
+    if (string_strcasecmp (argv[1], "bare") == 0)
+    {
+        gui_window_bare_display_toggle ((argc > 2) ? argv[2] : NULL);
+        return WEECHAT_RC_OK;
+    }
+
     /* jump to window by buffer number */
     if (string_strncasecmp (argv[1], "b", 1) == 0)
     {
@@ -7426,7 +7436,8 @@ command_init ()
            "scroll_beyond_end|scroll_previous_highlight|scroll_next_highlight|"
            "scroll_unread [-window <number>]"
            " || swap [-window <number>] [up|down|left|right]"
-           " || zoom[-window <number>]"),
+           " || zoom[-window <number>]"
+           " || bare [<delay>]"),
         N_("         list: list opened windows (without argument, this list is "
            "displayed)\n"
            "           -1: jump to previous window\n"
@@ -7463,6 +7474,8 @@ command_init ()
            "         swap: swap buffers of two windows (with optional direction "
            "for target window)\n"
            "         zoom: zoom on window\n"
+           "         bare: toggle bare display (with optional delay in "
+           "milliseconds for automatic return to standard display mode)\n"
            "\n"
            "For splith and splitv, pct is a percentage which represents size of "
            "new window, computed with current window as size reference. For "
@@ -7506,6 +7519,7 @@ command_init ()
         " || swap up|down|left|right|-window %(windows_numbers)"
         " || zoom -window %(windows_numbers)"
         " || merge all|-window %(windows_numbers)"
+        " || bare"
         " || %(windows_numbers)",
         &command_window, NULL);
 }

src/core/wee-config.c

@@ -155,6 +155,8 @@ struct t_config_option *config_look_prefix_buffer_align_more;
 struct t_config_option *config_look_prefix_buffer_align_more_after;
 struct t_config_option *config_look_prefix_same_nick;
 struct t_config_option *config_look_prefix_suffix;
+struct t_config_option *config_look_bare_display_exit_on_input;
+struct t_config_option *config_look_bare_display_time_format;
 struct t_config_option *config_look_read_marker;
 struct t_config_option *config_look_read_marker_always_show;
 struct t_config_option *config_look_read_marker_string;
@@ -2594,6 +2596,17 @@ config_weechat_init_options ()
         "prefix_suffix", "string",
         N_("string displayed after prefix"),
         NULL, 0, 0, "|", NULL, 0, NULL, NULL, &config_change_buffers, NULL, NULL, NULL);
+    config_look_bare_display_exit_on_input = config_file_new_option (
+        weechat_config_file, ptr_section,
+        "bare_display_exit_on_input", "boolean",
+        N_("exit the bare display mode on any changes in input"),
+        NULL, 0, 0, "on", NULL, 0, NULL, NULL, NULL, NULL, NULL, NULL);
+    config_look_bare_display_time_format = config_file_new_option (
+        weechat_config_file, ptr_section,
+        "bare_display_time_format", "string",
+        N_("time format in bare display mode (see man strftime for date/time "
+           "specifiers)"),
+        NULL, 0, 0, "%H:%M", NULL, 0, NULL, NULL, &config_change_buffer_content, NULL, NULL, NULL);
     config_look_read_marker = config_file_new_option (
         weechat_config_file, ptr_section,
         "read_marker", "integer",

src/core/wee-config.h

@@ -187,6 +187,8 @@ extern struct t_config_option *config_look_prefix_buffer_align_more;
 extern struct t_config_option *config_look_prefix_buffer_align_more_after;
 extern struct t_config_option *config_look_prefix_same_nick;
 extern struct t_config_option *config_look_prefix_suffix;
+extern struct t_config_option *config_look_bare_display_exit_on_input;
+extern struct t_config_option *config_look_bare_display_time_format;
 extern struct t_config_option *config_look_read_marker;
 extern struct t_config_option *config_look_read_marker_always_show;
 extern struct t_config_option *config_look_read_marker_string;