Rollup merge of #92602 - jsha:source-link-2, r=GuillaumeGomez

Make source links look cleaner

Change from syntaxy-looking [src] to the plain word "source".

Change the syntaxy-looking `[-]` at the top of the page to say "collapse".

Reduce opacity of rightside content.

Part of #59851

r? `@GuillaumeGomez`

Demo: https://rustdoc.crud.net/jsha/source-link-2/std/string/struct.String.html

[Discussed on Zulip](https://rust-lang.zulipchat.com/#narrow/stream/266220-rustdoc/topic/display.20of.20source.20link).

3 files changed, 11 insertions, 6 deletions

diff --git a/src/test/rustdoc-gui/anchors.goml b/src/test/rustdoc-gui/anchors.goml
index ca60be72cea..e6758287d8c 100644
--- a/src/test/rustdoc-gui/anchors.goml
+++ b/src/test/rustdoc-gui/anchors.goml
@@ -13,8 +13,10 @@ reload:
 assert-css: ("#toggle-all-docs", {"color": "rgb(0, 0, 0)"})
 assert-css: (".fqn .in-band a:nth-of-type(1)", {"color": "rgb(0, 0, 0)"})
 assert-css: (".fqn .in-band a:nth-of-type(2)", {"color": "rgb(173, 55, 138)"})
-assert-css: (".srclink", {"color": "rgb(0, 0, 0)"})
-assert-css: (".srclink", {"color": "rgb(0, 0, 0)"})
+assert-css: (".srclink", {"color": "rgb(56, 115, 173)"})
+
+move-cursor-to: ".main-heading .srclink"
+assert-css: (".srclink", {"text-decoration": "underline solid rgb(56, 115, 173)"})
 
 assert-css: ("#top-doc-prose-title", {"color": "rgb(0, 0, 0)"})
 
diff --git a/src/test/rustdoc-gui/headings.goml b/src/test/rustdoc-gui/headings.goml
index 87c512468e0..9db75c59d94 100644
--- a/src/test/rustdoc-gui/headings.goml
+++ b/src/test/rustdoc-gui/headings.goml
@@ -15,7 +15,7 @@
 goto: file://|DOC_PATH|/test_docs/struct.HeavilyDocumentedStruct.html
 
 assert-css: ("h1.fqn", {"font-size": "24px"})
-assert-css: ("h1.fqn", {"border-bottom-width": "1px"})
+assert-css: (".main-heading", {"border-bottom-width": "1px"})
 
 assert-css: ("h2#top-doc-prose-title", {"font-size": "20.8px"})
 assert-css: ("h2#top-doc-prose-title", {"border-bottom-width": "1px"})
@@ -55,7 +55,7 @@ assert-css: ("h6#sub-sub-heading-for-struct-impl-item-doc", {"font-size": "15.2p
 goto: file://|DOC_PATH|/test_docs/enum.HeavilyDocumentedEnum.html
 
 assert-css: ("h1.fqn", {"font-size": "24px"})
-assert-css: ("h1.fqn", {"border-bottom-width": "1px"})
+assert-css: (".main-heading", {"border-bottom-width": "1px"})
 
 assert-css: ("h2#top-doc-prose-title", {"font-size": "20.8px"})
 assert-css: ("h2#top-doc-prose-title", {"border-bottom-width": "1px"})
@@ -115,7 +115,7 @@ assert-css: (".sidebar .others h3", {"border-bottom-width": "1px"}, ALL)
 goto: file://|DOC_PATH|/test_docs/union.HeavilyDocumentedUnion.html
 
 assert-css: ("h1.fqn", {"font-size": "24px"})
-assert-css: ("h1.fqn", {"border-bottom-width": "1px"})
+assert-css: (".main-heading", {"border-bottom-width": "1px"})
 
 assert-css: ("h2#top-doc-prose-title", {"font-size": "20.8px"})
 assert-css: ("h2#top-doc-prose-title", {"border-bottom-width": "1px"})
@@ -148,7 +148,7 @@ assert-css: ("h6#sub-heading-for-union-impl-item-doc", {"border-bottom-width": "
 goto: file://|DOC_PATH|/test_docs/macro.heavily_documented_macro.html
 
 assert-css: ("h1.fqn", {"font-size": "24px"})
-assert-css: ("h1.fqn", {"border-bottom-width": "1px"})
+assert-css: (".main-heading", {"border-bottom-width": "1px"})
 
 assert-css: ("h2#top-doc-prose-title", {"font-size": "20.8px"})
 assert-css: ("h2#top-doc-prose-title", {"border-bottom-width": "1px"})
diff --git a/src/test/rustdoc-gui/toggle-docs.goml b/src/test/rustdoc-gui/toggle-docs.goml
index eaa4c554d5a..e11aae21e3f 100644
--- a/src/test/rustdoc-gui/toggle-docs.goml
+++ b/src/test/rustdoc-gui/toggle-docs.goml
@@ -1,10 +1,13 @@
 goto: file://|DOC_PATH|/test_docs/index.html
 assert-attribute: ("#main-content > details.top-doc", {"open": ""})
+assert-text: ("#toggle-all-docs", "[−]")
 click: "#toggle-all-docs"
 wait-for: 1000
 // This is now collapsed so there shouldn't be the "open" attribute on details.
 assert-attribute-false: ("#main-content > details.top-doc", {"open": ""})
+assert-text: ("#toggle-all-docs", "[+]")
 click: "#toggle-all-docs"
 wait-for: 1000
 // Not collapsed anymore so the "open" attribute should be back.
 assert-attribute: ("#main-content > details.top-doc", {"open": ""})
+assert-text: ("#toggle-all-docs", "[−]")