config: add colors.search-box-{no-,}match

Closes #1112

CHANGELOG.md

@@ -50,10 +50,13 @@
 * Support for jumping to previous/next prompt (requires shell
   integration). By default bound to `ctrl`+`shift`+`z` and
   `ctrl`+`shift`+`x` respectively ([#30][30]).
+* `colors.search-box-no-match` and `colors.search-box-match` options
+  to `foot.ini` ([#1112][1112]).
 
 [1058]: https://codeberg.org/dnkl/foot/issues/1058
 [1070]: https://codeberg.org/dnkl/foot/issues/1070
 [30]: https://codeberg.org/dnkl/foot/issues/30
+[1112]: https://codeberg.org/dnkl/foot/issues/1112
 
 
 ### Changed

config.c

@@ -1171,6 +1171,34 @@ parse_section_colors(struct context *ctx)
         return true;
     }
 
+    else if (strcmp(key, "search-box-no-match") == 0) {
+        if (!value_to_two_colors(
+                ctx,
+                &conf->colors.search_box.no_match.fg,
+                &conf->colors.search_box.no_match.bg,
+                false))
+        {
+            return false;
+        }
+
+        conf->colors.use_custom.search_box_no_match = true;
+        return true;
+    }
+
+    else if (strcmp(key, "search-box-match") == 0) {
+        if (!value_to_two_colors(
+                ctx,
+                &conf->colors.search_box.match.fg,
+                &conf->colors.search_box.match.bg,
+                false))
+        {
+            return false;
+        }
+
+        conf->colors.use_custom.search_box_match = true;
+        return true;
+    }
+
     else if (strcmp(key, "urls") == 0) {
         if (!value_to_color(ctx, &conf->colors.url, false))
             return false;

config.h

@@ -217,11 +217,25 @@ struct config {
             uint32_t bg;
         } scrollback_indicator;
 
+        struct {
+            struct {
+                uint32_t fg;
+                uint32_t bg;
+            } no_match;
+
+            struct {
+                uint32_t fg;
+                uint32_t bg;
+            } match;
+        } search_box;
+
         struct {
             bool selection:1;
             bool jump_label:1;
             bool scrollback_indicator:1;
             bool url:1;
+            bool search_box_no_match:1;
+            bool search_box_match:1;
             uint8_t dim;
         } use_custom;
     } colors;

doc/foot.ini.5.scd

@@ -566,6 +566,16 @@ can configure the background transparency with the _alpha_ option.
 	(indicator itself) colors for the scrollback indicator. Default:
 	_regular0 bright4_.
 
+*search-box-no-match*
+	Two color values specifying the foreground (text) and background
+	colors for the scrollback search box, when there are no
+	matches. Default: _regular0 regular1_.
+
+*search-box-match*
+	Two color values specifying the foreground (text) and background
+	colors for the scrollback search box, when the search box is
+	either empty, or there are matches. Default: _regular0 regular3_.
+
 *urls*
 	Color to use for the underline used to highlight URLs in URL
 	mode. Default: _regular3_.

foot.ini

@@ -104,9 +104,11 @@
 ## Misc colors
 # selection-foreground=<inverse foreground/background>
 # selection-background=<inverse foreground/background>
-# jump-labels=<regular0> <regular3>
+# jump-labels=<regular0> <regular3>          # black-on-yellow
+# scrollback-indicator=<regular0> <bright4>  # black-on-bright-blue
+# search-box-no-match=<regular0> <regular1>  # black-on-red
+# search-box-match=<regular0> <regular3>     # black-on-yellow
 # urls=<regular3>
-# scrollback-indicator=<regular0> <bright4>
 
 [csd]
 # preferred=server

render.c

@@ -3046,10 +3046,20 @@ render_search_box(struct terminal *term)
 #define WINDOW_X(x) (margin + x)
 #define WINDOW_Y(y) (term->height - margin - height + y)
 
-    /* Background - yellow on empty/match, red on mismatch */
+    const bool is_match = term->search.match_len == text_len;
-    pixman_color_t color = color_hex_to_pixman(
+    const bool custom_colors = is_match
-        term->search.match_len == text_len
+        ? term->conf->colors.use_custom.search_box_match
-        ? term->colors.table[3] : term->colors.table[1]);
+        : term->conf->colors.use_custom.search_box_no_match;
+
+    /* Background - yellow on empty/match, red on mismatch (default) */
+    const pixman_color_t color = color_hex_to_pixman(
+        is_match
+        ? (custom_colors
+           ? term->conf->colors.search_box.match.bg
+           : term->colors.table[3])
+        : (custom_colors
+           ? term->conf->colors.search_box.no_match.bg
+           : term->colors.table[1]));
 
     pixman_image_fill_rectangles(
         PIXMAN_OP_SRC, buf->pix[0], &color,
@@ -3065,7 +3075,12 @@ render_search_box(struct terminal *term)
     const int x_ofs = term->font_x_ofs;
     int x = x_left;
     int y = margin;
-    pixman_color_t fg = color_hex_to_pixman(term->colors.table[0]);
+    pixman_color_t fg = color_hex_to_pixman(
+        custom_colors
+        ? (is_match
+           ? term->conf->colors.search_box.match.fg
+           : term->conf->colors.search_box.no_match.fg)
+        : term->colors.table[0]);
 
     /* Move offset we start rendering at, to ensure the cursor is visible */
     for (size_t i = 0, cell_idx = 0; i <= term->search.cursor; cell_idx += widths[i], i++) {

tests/test-config.c

@@ -668,6 +668,12 @@ test_section_colors(void)
     test_two_colors(&ctx, &parse_section_colors, "scrollback-indicator", false,
                     &conf.colors.scrollback_indicator.fg,
                     &conf.colors.scrollback_indicator.bg);
+    test_two_colors(&ctx, &parse_section_colors, "search-box-no-match", false,
+                    &conf.colors.search_box.no_match.fg,
+                    &conf.colors.search_box.no_match.bg);
+    test_two_colors(&ctx, &parse_section_colors, "search-box-match", false,
+                    &conf.colors.search_box.match.fg,
+                    &conf.colors.search_box.match.bg);
 
     for (size_t i = 0; i < 255; i++) {
         char key_name[4];