Auto merge of #48755 - GuillaumeGomez:rustdoc-fixes, r=QuietMisdreavus

Multiple rustdoc fixes

Fixes #48733.

r? @QuietMisdreavus

src/librustdoc/html/render.rs

@@ -3521,11 +3521,9 @@ impl<'a> fmt::Display for Sidebar<'a> {
         let cx = self.cx;
         let it = self.item;
         let parentlen = cx.current.len() - if it.is_mod() {1} else {0};
-        let mut should_close = false;
 
         if it.is_struct() || it.is_trait() || it.is_primitive() || it.is_union()
-            || it.is_enum() || it.is_mod() || it.is_typedef()
-        {
+            || it.is_enum() || it.is_mod() || it.is_typedef() {
             write!(fmt, "<p class='location'>")?;
             match it.inner {
                 clean::StructItem(..) => write!(fmt, "Struct ")?,
@@ -3544,6 +3542,7 @@ impl<'a> fmt::Display for Sidebar<'a> {
             }
             write!(fmt, "{}", it.name.as_ref().unwrap())?;
             write!(fmt, "</p>")?;
+        }
 
         if it.is_crate() {
             if let Some(ref version) = cache().crate_version {
@@ -3556,7 +3555,6 @@ impl<'a> fmt::Display for Sidebar<'a> {
         }
 
         write!(fmt, "<div class=\"sidebar-elems\">")?;
-            should_close = true;
         match it.inner {
             clean::StructItem(ref s) => sidebar_struct(fmt, it, s)?,
             clean::TraitItem(ref t) => sidebar_trait(fmt, it, t)?,
@@ -3568,7 +3566,6 @@ impl<'a> fmt::Display for Sidebar<'a> {
             clean::ForeignTypeItem => sidebar_foreign_type(fmt, it)?,
             _ => (),
         }
-        }
 
         // The sidebar is designed to display sibling functions, modules and
         // other miscellaneous information. since there are lots of sibling
@@ -3607,10 +3604,8 @@ impl<'a> fmt::Display for Sidebar<'a> {
             write!(fmt, "<script defer src=\"{path}sidebar-items.js\"></script>",
                    path = relpath)?;
         }
-        if should_close {
         // Closes sidebar-elems div.
         write!(fmt, "</div>")?;
-        }
 
         Ok(())
     }

src/librustdoc/html/static/main.js

@@ -240,12 +240,15 @@
     }
 
     function handleShortcut(ev) {
-        if (document.activeElement.tagName === "INPUT")
+        if (document.activeElement.tagName === "INPUT" &&
+                hasClass(document.getElementById('main'), "hidden")) {
             return;
+        }
 
         // Don't interfere with browser shortcuts
-        if (ev.ctrlKey || ev.altKey || ev.metaKey)
+        if (ev.ctrlKey || ev.altKey || ev.metaKey) {
             return;
+        }
 
         var help = document.getElementById("help");
         switch (getVirtualKey(ev)) {
@@ -1457,6 +1460,7 @@
         // Draw a convenient sidebar of known crates if we have a listing
         if (rootPath === '../') {
             var sidebar = document.getElementsByClassName('sidebar-elems')[0];
+            if (sidebar) {
                 var div = document.createElement('div');
                 div.className = 'block crate';
                 div.innerHTML = '<h3>Crates</h3>';
@@ -1489,6 +1493,7 @@
                 sidebar.appendChild(div);
             }
         }
+    }
 
     window.initSearch = initSearch;
 
@@ -1776,22 +1781,33 @@
         referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
     }
 
+    function checkIfThereAreMethods(elems) {
+        var areThereMethods = false;
+
+        onEach(elems, function(e) {
+            if (hasClass(e, "method")) {
+                areThereMethods = true;
+                return true;
+            }
+        });
+        return areThereMethods;
+    }
+
     var toggle = document.createElement('a');
     toggle.href = 'javascript:void(0)';
     toggle.className = 'collapse-toggle';
-    toggle.innerHTML = "[<span class='inner'>"+labelForToggleButton(false)+"</span>]";
+    toggle.innerHTML = "[<span class='inner'>" + labelForToggleButton(false) + "</span>]";
 
     var func = function(e) {
         var next = e.nextElementSibling;
         if (!next) {
             return;
         }
-        if (hasClass(next, 'docblock') ||
+        if ((checkIfThereAreMethods(next.childNodes) || hasClass(e, 'method')) &&
+            (hasClass(next, 'docblock') ||
+             hasClass(e, 'impl') ||
              (hasClass(next, 'stability') &&
-             hasClass(next.nextElementSibling, 'docblock'))) {
-            insertAfter(toggle.cloneNode(true), e.childNodes[e.childNodes.length - 1]);
-        }
-        if (hasClass(e, 'impl')) {
+              hasClass(next.nextElementSibling, 'docblock')))) {
             insertAfter(toggle.cloneNode(true), e.childNodes[e.childNodes.length - 1]);
         }
     }

src/librustdoc/html/static/rustdoc.css

@@ -528,6 +528,9 @@ a {
 .anchor.field {
 	left: -5px;
 }
+.small-section-header > .anchor {
+	left: -28px;
+}
 .anchor:before {
 	content: '\2002\00a7\2002';
 }

src/test/rustdoc/fn-sidebar.rs

@@ -0,0 +1,19 @@
+// Copyright 2017 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"]
+
+// @has foo/fn.bar.html
+// @has - '//*[@class="sidebar-elems"]' ''
+pub fn bar() {}
+
+// @has foo/constant.BAR.html
+// @has - '//*[@class="sidebar-elems"]' ''
+pub const BAR: u32 = 0;