Rollup merge of rust-lang#106218 - GuillaumeGomez:migrate-css-var-scraped-examples, r=notriddle

Migrate css var scraped examples

r? ``@notriddle``

Author: matthiaskrgr

src/librustdoc/html/static/css/rustdoc.css

@@ -1955,6 +1955,13 @@ in storage.js
 	overflow-x: hidden;
 }
 
+.scraped-example .example-wrap .rust span.highlight {
+	background: var(--scrape-example-code-line-highlight);
+}
+.scraped-example .example-wrap .rust span.highlight.focus {
+	background: var(--scrape-example-code-line-highlight-focus);
+}
+
 .more-examples-toggle {
 	max-width: calc(100% + 25px);
 	margin-top: 10px;

src/librustdoc/html/static/css/themes/ayu.css

@@ -91,6 +91,8 @@ Original by Dempfi (https://github.com/dempfi/ayu)
 	--codeblock-link-background: #333;
 	--scrape-example-toggle-line-background: #999;
 	--scrape-example-toggle-line-hover-background: #c5c5c5;
+	--scrape-example-code-line-highlight: rgb(91, 59, 1);
+	--scrape-example-code-line-highlight-focus: rgb(124, 75, 15);
 }
 
 h1, h2, h3, h4 {
@@ -206,12 +208,6 @@ above the `@media (max-width: 700px)` rules due to a bug in the css checker */
 	border-color: white;
 	color: white;
 }
-.scraped-example .example-wrap .rust span.highlight {
-	background: rgb(91, 59, 1);
-}
-.scraped-example .example-wrap .rust span.highlight.focus {
-	background: rgb(124, 75, 15);
-}
 .scraped-example:not(.expanded) .code-wrapper::before {
 	background: linear-gradient(to bottom, rgba(15, 20, 25, 1), rgba(15, 20, 25, 0));
 }

src/librustdoc/html/static/css/themes/dark.css

@@ -86,6 +86,8 @@
 	--codeblock-link-background: #333;
 	--scrape-example-toggle-line-background: #999;
 	--scrape-example-toggle-line-hover-background: #c5c5c5;
+	--scrape-example-code-line-highlight: rgb(91, 59, 1);
+	--scrape-example-code-line-highlight-focus: rgb(124, 75, 15);
 }
 
 #search-tabs > button:not(.selected) {
@@ -106,12 +108,6 @@
 	border-color: white;
 	color: white;
 }
-.scraped-example .example-wrap .rust span.highlight {
-	background: rgb(91, 59, 1);
-}
-.scraped-example .example-wrap .rust span.highlight.focus {
-	background: rgb(124, 75, 15);
-}
 .scraped-example:not(.expanded) .code-wrapper::before {
 	background: linear-gradient(to bottom, rgba(53, 53, 53, 1), rgba(53, 53, 53, 0));
 }

src/librustdoc/html/static/css/themes/light.css

@@ -83,6 +83,8 @@
 	--codeblock-link-background: #eee;
 	--scrape-example-toggle-line-background: #ccc;
 	--scrape-example-toggle-line-hover-background: #999;
+	--scrape-example-code-line-highlight: #fcffd6;
+	--scrape-example-code-line-highlight-focus: #f6fdb0;
 }
 
 #search-tabs > button:not(.selected) {
@@ -103,12 +105,6 @@
 	border-color: black;
 	color: black;
 }
-.scraped-example .example-wrap .rust span.highlight {
-	background: #fcffd6;
-}
-.scraped-example .example-wrap .rust span.highlight.focus {
-	background: #f6fdb0;
-}
 .scraped-example:not(.expanded) .code-wrapper::before {
 	background: linear-gradient(to bottom, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
 }

src/test/rustdoc-gui/scrape-examples-color.goml

@@ -0,0 +1,34 @@
+// Check that scrape example code blocks have the expected colors.
+goto: "file://" + |DOC_PATH| + "/scrape_examples/fn.test_many.html"
+
+define-function: (
+    "check-colors",
+    (theme, highlight, highlight_focus),
+    [
+        ("local-storage", { "rustdoc-theme": |theme|, "rustdoc-use-system-theme": "false", }),
+        ("reload"),
+        ("wait-for", ".more-examples-toggle"),
+        ("assert-css", (".scraped-example .example-wrap .rust span.highlight:not(.focus)", {
+            "background-color": |highlight|,
+        }, ALL)),
+        ("assert-css", (".scraped-example .example-wrap .rust span.highlight.focus", {
+            "background-color": |highlight_focus|,
+        }, ALL)),
+    ]
+)
+
+call-function: ("check-colors", {
+    "theme": "ayu",
+    "highlight": "rgb(91, 59, 1)",
+    "highlight_focus": "rgb(124, 75, 15)",
+})
+call-function: ("check-colors", {
+    "theme": "dark",
+    "highlight": "rgb(91, 59, 1)",
+    "highlight_focus": "rgb(124, 75, 15)",
+})
+call-function: ("check-colors", {
+    "theme": "light",
+    "highlight": "rgb(252, 255, 214)",
+    "highlight_focus": "rgb(246, 253, 176)",
+})