command: highlight selected list items with color

Instead of printing circles in show-text ${playlist}, ${chapter-list}
and ${edition-list}, introduce --osd-selected-color and
--osd-selected-outline-color to reduce clutter, make the selected item
easier to differentiate, and have visual consistency with select.lua.

The defaults are taken from the style of the selected item in the
console. These new options are also used there, replacing the hardcoded
styles. Due to being user-configurable, selected item styles are changed
to take priority over default item styles.

The default selected style is yellow and bold. The bold (hardcoded)
allows differentiating the selected item with color blindness. There is
also a separate --osd-selected-outline-color option defaulting to black,
since without it if the user changes --osd-outline-color yellow text
becomes unreadable without a black border. --osd-selected-back-color is
omitted for now.

Text and background colors are inverted for the selected item in the
terminal. This is hardcoded, adding an option is overkill.

A disadvantage of this commit is that if you run print-text ${playlist}
with a VO, the selected style ASS is printed to the terminal (but ASS
printed in the console is interpreted). This commit avoids printing the
reset ASS sequence for non-selected items to reduce clutter in this
case.

player/command.c

@@ -45,6 +45,7 @@
 #include "common/common.h"
 #include "input/input.h"
 #include "input/keycodes.h"
+#include "sub/osd_state.h"
 #include "stream/stream.h"
 #include "demux/demux.h"
 #include "demux/stheader.h"
@@ -306,6 +307,32 @@ void mark_seek(struct MPContext *mpctx)
     cmd->last_seek_time = now;
 }
 
+static char *append_selected_style(struct MPContext *mpctx, char *str)
+{
+    if (!mpctx->video_out || !mpctx->opts->video_osd)
+        return talloc_strdup_append(str, TERM_ESC_REVERSE_COLORS);
+
+    return talloc_asprintf_append(str,
+               "%s{\\b1\\1c&H%x%x%x&\\1a&H%x&\\3c&H%x%x%x&\\3a&H%x&}%s",
+               OSD_ASS_0,
+               mpctx->video_out->osd->opts->osd_selected_color.b,
+               mpctx->video_out->osd->opts->osd_selected_color.g,
+               mpctx->video_out->osd->opts->osd_selected_color.r,
+               255 - mpctx->video_out->osd->opts->osd_selected_color.a,
+               mpctx->video_out->osd->opts->osd_selected_outline_color.b,
+               mpctx->video_out->osd->opts->osd_selected_outline_color.g,
+               mpctx->video_out->osd->opts->osd_selected_outline_color.r,
+               255 - mpctx->video_out->osd->opts->osd_selected_outline_color.a,
+               OSD_ASS_1);
+}
+
+static const char *get_style_reset(struct MPContext *mpctx)
+{
+    return mpctx->video_out && mpctx->opts->video_osd
+        ? OSD_ASS_0"{\\r}"OSD_ASS_1
+        : TERM_ESC_CLEAR_COLORS;
+}
+
 static char *skip_n_lines(char *text, int lines)
 {
     while (text && lines > 0) {
@@ -1055,13 +1082,14 @@ static int mp_property_list_chapters(void *ctx, struct m_property *prop,
         }
 
         for (n = 0; n < count; n++) {
+            if (n == cur)
+                res = append_selected_style(mpctx, res);
             char *name = chapter_name(mpctx, n);
             double t = chapter_start_time(mpctx, n);
             char* time = mp_format_time(t, false);
-            res = talloc_asprintf_append(res, "%s", time);
+            res = talloc_asprintf_append(res, "%s  %s%s\n", time, name,
+                                         n == cur ? get_style_reset(mpctx) : "");
             talloc_free(time);
-            const char *m = n == cur ? list_current : list_normal;
-            res = talloc_asprintf_append(res, "  %s%s\n", m, name);
         }
 
         *(char **)arg = count ? cut_osd_list(mpctx, "Chapters", res, cur) : res;
@@ -1166,13 +1194,14 @@ static int property_list_editions(void *ctx, struct m_property *prop,
         for (int n = 0; n < num_editions; n++) {
             struct demux_edition *ed = &editions[n];
 
-            res = talloc_strdup_append(res, n == current ? list_current
-                                                         : list_normal);
+            if (n == current)
+                res = append_selected_style(mpctx, res);
             res = talloc_asprintf_append(res, "%d: ", n);
             char *title = mp_tags_get_str(ed->metadata, "title");
             if (!title)
                 title = "unnamed";
-            res = talloc_asprintf_append(res, "'%s'\n", title);
+            res = talloc_asprintf_append(res, "'%s'%s\n", title,
+                                         n == current ? get_style_reset(mpctx) : "");
         }
 
         *(char **)arg = res;
@@ -3343,8 +3372,9 @@ static int mp_property_playlist(void *ctx, struct m_property *prop,
 
         for (int n = 0; n < pl->num_entries; n++) {
             struct playlist_entry *e = pl->entries[n];
-            res =  talloc_strdup_append(res, pl->current == e ? list_current
-                                                              : list_normal);
+            if (pl->current == e)
+                res = append_selected_style(mpctx, res);
+            const char *reset = pl->current == e ? get_style_reset(mpctx) : "";
             char *p = e->title;
             if (!p || mpctx->opts->playlist_entry_name > 0) {
                 p = e->filename;
@@ -3355,9 +3385,9 @@ static int mp_property_playlist(void *ctx, struct m_property *prop,
                 }
             }
             if (!e->title || p == e->title || mpctx->opts->playlist_entry_name == 1) {
-                res = talloc_asprintf_append(res, "%s\n", p);
+                res = talloc_asprintf_append(res, "%s%s\n", p, reset);
             } else {
-                res = talloc_asprintf_append(res, "%s (%s)\n", e->title, p);
+                res = talloc_asprintf_append(res, "%s (%s)%s\n", e->title, p, reset);
             }
         }
 

player/lua/console.lua

@@ -389,6 +389,11 @@ local function fuzzy_find(needle, haystacks, case_sensitive)
     return result
 end
 
+local function mpv_color_to_ass(color)
+    return color:sub(8,9) .. color:sub(6,7) ..  color:sub(4,5),
+           string.format('%x', 255 - tonumber('0x' .. color:sub(2,3)))
+end
+
 local function populate_log_with_matches()
     if not selectable_items or selected_match == 0 then
         return
@@ -430,13 +435,17 @@ local function populate_log_with_matches()
         local style = ''
         local terminal_style = ''
 
-        if i == selected_match then
-            style = styles.selected_suggestion
-            terminal_style = terminal_styles.selected_suggestion
-        end
         if matches[i].index == default_item then
-            style = style .. styles.default_item
-            terminal_style = terminal_style .. terminal_styles.default_item
+            style = styles.default_item
+            terminal_style = terminal_styles.default_item
+        end
+        if i == selected_match then
+            local color, alpha = mpv_color_to_ass(mp.get_property('osd-selected-color'))
+            local outline_color, outline_alpha =
+                mpv_color_to_ass(mp.get_property('osd-selected-outline-color'))
+            style = style .. "{\\b1\\1c&H" .. color .. "&\\1a&H" .. alpha ..
+                             "&\\3c&H" .. outline_color .. "&\\3a&H" .. outline_alpha .. "&}"
+            terminal_style = terminal_style .. terminal_styles.selected_suggestion
         end
 
         log[#log + 1] = {