rust-lang · bors · Dec 29, 2018 · Dec 20, 2018
diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs
@@ -195,6 +195,9 @@ pub struct RenderOptions {
     /// If present, playground URL to use in the "Run" button added to code samples generated from
     /// standalone Markdown files. If not present, `playground_url` is used.
     pub markdown_playground_url: Option<String>,
+    /// If false, the `select` element to have search filtering by crates on rendered docs
+    /// won't be generated.
+    pub generate_search_filter: bool,
 }
 
 impl Options {
@@ -437,6 +440,7 @@ impl Options {
         let crate_version = matches.opt_str("crate-version");
         let enable_index_page = matches.opt_present("enable-index-page") || index_page.is_some();
         let static_root_path = matches.opt_str("static-root-path");
+        let generate_search_filter = !matches.opt_present("disable-per-crate-search");
 
         let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(matches, error_format);
 
@@ -479,6 +483,7 @@ impl Options {
                 markdown_no_toc,
                 markdown_css,
                 markdown_playground_url,
+                generate_search_filter,
             }
         })
     }

diff --git a/src/librustdoc/html/layout.rs b/src/librustdoc/html/layout.rs
@@ -35,10 +35,15 @@ pub struct Page<'a> {
 }
 
 pub fn render<T: fmt::Display, S: fmt::Display>(
-    dst: &mut dyn io::Write, layout: &Layout, page: &Page, sidebar: &S, t: &T,
-    css_file_extension: bool, themes: &[PathBuf])
-    -> io::Result<()>
-{
+    dst: &mut dyn io::Write,
+    layout: &Layout,
+    page: &Page,
+    sidebar: &S,
+    t: &T,
+    css_file_extension: bool,
+    themes: &[PathBuf],
+    generate_search_filter: bool,
+) -> io::Result<()> {
     let static_root_path = page.static_root_path.unwrap_or(page.root_path);
     write!(dst,
 "<!DOCTYPE html>\
@@ -91,10 +96,7 @@ pub fn render<T: fmt::Display, S: fmt::Display>(
     <nav class=\"sub\">\
         <form class=\"search-form js-only\">\
             <div class=\"search-container\">\
-                <div>\
-                    <select id=\"crate-search\">\
-                        <option value=\"All crates\">All crates</option>\
-                    </select>\
+                <div>{filter_crates}\
                     <input class=\"search-input\" name=\"search\" \
                            autocomplete=\"off\" \
                            spellcheck=\"false\" \
@@ -224,6 +226,13 @@ pub fn render<T: fmt::Display, S: fmt::Display>(
                 root_path=page.root_path,
                 extra_script=e)
     }).collect::<String>(),
+    filter_crates=if generate_search_filter {
+        "<select id=\"crate-search\">\
+            <option value=\"All crates\">All crates</option>\
+        </select>"
+    } else {
+        ""
+    },
     )
 }
 

diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
@@ -143,6 +143,9 @@ struct SharedContext {
     /// Optional path string to be used to load static files on output pages. If not set, uses
     /// combinations of `../` to reach the documentation root.
     pub static_root_path: Option<String>,
+    /// If false, the `select` element to have search filtering by crates on rendered docs
+    /// won't be generated.
+    pub generate_search_filter: bool,
 }
 
 impl SharedContext {
@@ -510,6 +513,7 @@ pub fn run(mut krate: clean::Crate,
         extern_html_root_urls,
         resource_suffix,
         static_root_path,
+        generate_search_filter,
         ..
     } = options;
 
@@ -538,6 +542,7 @@ pub fn run(mut krate: clean::Crate,
         themes,
         resource_suffix,
         static_root_path,
+        generate_search_filter,
     };
 
     // If user passed in `--playground-url` arg, we fill in crate name here
@@ -1109,7 +1114,8 @@ themePicker.onblur = handleThemeButtonsBlur;
             try_err!(layout::render(&mut w, &cx.shared.layout,
                                     &page, &(""), &content,
                                     cx.shared.css_file_extension.is_some(),
-                                    &cx.shared.themes), &dst);
+                                    &cx.shared.themes,
+                                    cx.shared.generate_search_filter), &dst);
             try_err!(w.flush(), &dst);
         }
     }
@@ -1384,7 +1390,8 @@ impl<'a> SourceCollector<'a> {
         layout::render(&mut w, &self.scx.layout,
                        &page, &(""), &Source(contents),
                        self.scx.css_file_extension.is_some(),
-                       &self.scx.themes)?;
+                       &self.scx.themes,
+                       self.scx.generate_search_filter)?;
         w.flush()?;
         self.scx.local_sources.insert(p.clone(), href);
         Ok(())
@@ -1986,7 +1993,8 @@ impl Context {
         try_err!(layout::render(&mut w, &self.shared.layout,
                                 &page, &sidebar, &all,
                                 self.shared.css_file_extension.is_some(),
-                                &self.shared.themes),
+                                &self.shared.themes,
+                                self.shared.generate_search_filter),
                  &final_file);
 
         // Generating settings page.
@@ -2006,7 +2014,8 @@ impl Context {
         try_err!(layout::render(&mut w, &layout,
                                 &page, &sidebar, &settings,
                                 self.shared.css_file_extension.is_some(),
-                                &themes),
+                                &themes,
+                                self.shared.generate_search_filter),
                  &settings_file);
 
         Ok(())
@@ -2067,7 +2076,8 @@ impl Context {
                            &Sidebar{ cx: self, item: it },
                            &Item{ cx: self, item: it },
                            self.shared.css_file_extension.is_some(),
-                           &self.shared.themes)?;
+                           &self.shared.themes,
+                           self.shared.generate_search_filter)?;
         } else {
             let mut url = self.root_path();
             if let Some(&(ref names, ty)) = cache().paths.get(&it.def_id) {

diff --git a/src/librustdoc/html/static/main.js b/src/librustdoc/html/static/main.js
@@ -2434,9 +2434,11 @@ if (!DOMTokenList.prototype.remove) {
             return;
         }
         var crates_text = [];
-        for (var crate in crates) {
-            if (crates.hasOwnProperty(crate)) {
-                crates_text.push(crate);
+        if (crates.length > 1) {
+            for (var crate in crates) {
+                if (crates.hasOwnProperty(crate)) {
+                    crates_text.push(crate);
+                }
             }
         }
         crates_text.sort(function(a, b) {

diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
@@ -661,7 +661,7 @@ a {
 	box-sizing: border-box !important;
 	outline: none;
 	border: none;
-	border-radius: 0 1px 1px 0;
+	border-radius: 1px;
 	margin-top: 5px;
 	padding: 10px 16px;
 	font-size: 17px;
@@ -671,6 +671,10 @@ a {
 	width: 100%;
 }
 
+#crate-search + .search-input {
+	border-radius: 0 1px 1px 0;
+}
+
 .search-input:focus {
 	border-radius: 2px;
 	border: 0;

diff --git a/src/librustdoc/html/static/themes/dark.css b/src/librustdoc/html/static/themes/dark.css
@@ -194,14 +194,18 @@ a.test-arrow {
 
 .search-input {
 	color: #111;
-	box-shadow: 1px 0 0 1px #000, 0 0 0 2px transparent;
+	box-shadow: 0 0 0 1px #000, 0 0 0 2px transparent;
 	background-color: #f0f0f0;
 }
 
 .search-input:focus {
 	border-color: #008dfd;
 }
 
+#crate-search + .search-input {
+	box-shadow: 1px 0 0 1px #000, 0 0 0 2px transparent;
+}
+
 .stab.unstable { background: #FFF5D6; border-color: #FFC600; color: #404040; }
 .stab.internal { background: #FFB9B3; border-color: #B71C1C; color: #404040; }
 .stab.deprecated { background: #F3DFFF; border-color: #7F0087;  color: #404040; }

diff --git a/src/librustdoc/html/static/themes/light.css b/src/librustdoc/html/static/themes/light.css
@@ -195,14 +195,18 @@ a.test-arrow {
 
 .search-input {
 	color: #555;
-	box-shadow: 1px 0 0 1px #e0e0e0, 0 0 0 2px transparent;
+	box-shadow: 0 0 0 1px #e0e0e0, 0 0 0 2px transparent;
 	background-color: white;
 }
 
 .search-input:focus {
 	border-color: #66afe9;
 }
 
+#crate-search + .search-input {
+	box-shadow: 1px 0 0 1px #e0e0e0, 0 0 0 2px transparent;
+}
+
 .stab.unstable { background: #FFF5D6; border-color: #FFC600; }
 .stab.internal { background: #FFB9B3; border-color: #B71C1C; }
 .stab.deprecated { background: #F3DFFF; border-color: #7F0087; }

diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
@@ -346,6 +346,11 @@ fn opts() -> Vec<RustcOptGroup> {
                       If not set, uses combinations of '../' to reach the documentation root.",
                      "PATH")
         }),
+        unstable("disable-per-crate-search", |o| {
+            o.optflag("",
+                      "disable-per-crate-search",
+                      "disables generating the crate selector on the search box")
+        }),
     ]
 }
 

diff --git a/src/test/rustdoc/no-crate-filter.rs b/src/test/rustdoc/no-crate-filter.rs
@@ -0,0 +1,16 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_name = "foo"]
+
+// compile-flags: -Z unstable-options --disable-per-crate-search
+
+// @!has 'foo/struct.Foo.html' '//*[id="crate-search"]'
+pub struct Foo;