Rollup merge of rust-lang#49152 - GuillaumeGomez:rustdoc-event-handling, r=QuietMisdreavus

Fix events handling in rustdoc

Fixes rust-lang#49075.

Author: kennytm

src/librustdoc/html/static/main.js

@@ -239,52 +239,59 @@
         }
     }
 
-    function handleShortcut(ev) {
-        if (document.activeElement.tagName === "INPUT" &&
-                hasClass(document.getElementById('main'), "hidden")) {
-            return;
+    function handleEscape(ev, help) {
+        hideModal();
+        var search = document.getElementById("search");
+        if (!hasClass(help, "hidden")) {
+            displayHelp(false, ev);
+        } else if (!hasClass(search, "hidden")) {
+            ev.preventDefault();
+            addClass(search, "hidden");
+            removeClass(document.getElementById("main"), "hidden");
         }
+        defocusSearchBar();
+    }
 
+    function handleShortcut(ev) {
         // Don't interfere with browser shortcuts
         if (ev.ctrlKey || ev.altKey || ev.metaKey) {
             return;
         }
 
         var help = document.getElementById("help");
-        switch (getVirtualKey(ev)) {
-        case "Escape":
-            hideModal();
-            var search = document.getElementById("search");
-            if (!hasClass(help, "hidden")) {
-                displayHelp(false, ev);
-            } else if (!hasClass(search, "hidden")) {
-                ev.preventDefault();
-                addClass(search, "hidden");
-                removeClass(document.getElementById("main"), "hidden");
+        if (document.activeElement.tagName === "INPUT") {
+            switch (getVirtualKey(ev)) {
+            case "Escape":
+                handleEscape(ev, help);
+                break;
             }
-            defocusSearchBar();
-            break;
+        } else {
+            switch (getVirtualKey(ev)) {
+            case "Escape":
+                handleEscape(ev, help);
+                break;
 
-        case "s":
-        case "S":
-            displayHelp(false, ev);
-            hideModal();
-            ev.preventDefault();
-            focusSearchBar();
-            break;
+            case "s":
+            case "S":
+                displayHelp(false, ev);
+                hideModal();
+                ev.preventDefault();
+                focusSearchBar();
+                break;
 
-        case "+":
-        case "-":
-            ev.preventDefault();
-            toggleAllDocs();
-            break;
+            case "+":
+            case "-":
+                ev.preventDefault();
+                toggleAllDocs();
+                break;
 
-        case "?":
-            if (ev.shiftKey) {
-                hideModal();
-                displayHelp(true, ev);
+            case "?":
+                if (ev.shiftKey) {
+                    hideModal();
+                    displayHelp(true, ev);
+                }
+                break;
             }
-            break;
         }
     }