Improved graceful handling of broken search when browsing locally

material/base.html

@@ -223,7 +223,7 @@
       </script>
     {% endblock %}
     {% block scripts %}
-      <script src="{{ 'assets/javascripts/bundle.d7b0ad22.min.js' | url }}"></script>
+      <script src="{{ 'assets/javascripts/bundle.ddd52ceb.min.js' | url }}"></script>
       {% for path in config["extra_javascript"] %}
         <script src="{{ path | url }}"></script>
       {% endfor %}

src/assets/javascripts/actions/top/index.ts

@@ -55,7 +55,7 @@ export function resetBackToTopState(
  * @param el - Back-to-top element
  * @param value - Back-to-top offset
  */
- export function setBackToTopOffset(
+export function setBackToTopOffset(
   el: HTMLElement, value: number
 ): void {
   el.style.top = `${value}px`

src/assets/javascripts/components/search/_/index.ts

@@ -85,96 +85,103 @@ export function mountSearch(
   el: HTMLElement, { index$, keyboard$ }: MountOptions
 ): Observable<Component<Search>> {
   const config = configuration()
-  const worker = setupSearchWorker(config.search, index$)
+  try {
+    const worker = setupSearchWorker(config.search, index$)
 
-  /* Retrieve nested components */
-  const query  = getComponentElement("search-query", el)
-  const result = getComponentElement("search-result", el)
+    /* Retrieve nested components */
+    const query  = getComponentElement("search-query", el)
+    const result = getComponentElement("search-result", el)
 
-  /* Re-emit query when search is ready */
-  const { tx$, rx$ } = worker
-  tx$
-    .pipe(
-      filter(isSearchQueryMessage),
-      sample(rx$.pipe(filter(isSearchReadyMessage))),
-      take(1)
-    )
-      .subscribe(tx$.next.bind(tx$))
+    /* Re-emit query when search is ready */
+    const { tx$, rx$ } = worker
+    tx$
+      .pipe(
+        filter(isSearchQueryMessage),
+        sample(rx$.pipe(filter(isSearchReadyMessage))),
+        take(1)
+      )
+        .subscribe(tx$.next.bind(tx$))
 
-  /* Set up search keyboard handlers */
-  keyboard$
-    .pipe(
-      filter(({ mode }) => mode === "search")
-    )
-      .subscribe(key => {
-        const active = getActiveElement()
-        switch (key.type) {
+    /* Set up search keyboard handlers */
+    keyboard$
+      .pipe(
+        filter(({ mode }) => mode === "search")
+      )
+        .subscribe(key => {
+          const active = getActiveElement()
+          switch (key.type) {
 
-          /* Enter: prevent form submission */
-          case "Enter":
-            if (active === query)
+            /* Enter: prevent form submission */
+            case "Enter":
+              if (active === query)
+                key.claim()
+              break
+
+            /* Escape or Tab: close search */
+            case "Escape":
+            case "Tab":
+              setToggle("search", false)
+              setElementFocus(query, false)
+              break
+
+            /* Vertical arrows: select previous or next search result */
+            case "ArrowUp":
+            case "ArrowDown":
+              if (typeof active === "undefined") {
+                setElementFocus(query)
+              } else {
+                const els = [query, ...getElements(
+                  ":not(details) > [href], summary, details[open] [href]",
+                  result
+                )]
+                const i = Math.max(0, (
+                  Math.max(0, els.indexOf(active)) + els.length + (
+                    key.type === "ArrowUp" ? -1 : +1
+                  )
+                ) % els.length)
+                setElementFocus(els[i])
+              }
+
+              /* Prevent scrolling of page */
               key.claim()
-            break
+              break
 
-          /* Escape or Tab: close search */
-          case "Escape":
-          case "Tab":
-            setToggle("search", false)
-            setElementFocus(query, false)
-            break
+            /* All other keys: hand to search query */
+            default:
+              if (query !== getActiveElement())
+                setElementFocus(query)
+          }
+        })
 
-          /* Vertical arrows: select previous or next search result */
-          case "ArrowUp":
-          case "ArrowDown":
-            if (typeof active === "undefined") {
+    /* Set up global keyboard handlers */
+    keyboard$
+      .pipe(
+        filter(({ mode }) => mode === "global"),
+      )
+        .subscribe(key => {
+          switch (key.type) {
+
+            /* Open search and select query */
+            case "f":
+            case "s":
+            case "/":
               setElementFocus(query)
-            } else {
-              const els = [query, ...getElements(
-                ":not(details) > [href], summary, details[open] [href]",
-                result
-              )]
-              const i = Math.max(0, (
-                Math.max(0, els.indexOf(active)) + els.length + (
-                  key.type === "ArrowUp" ? -1 : +1
-                )
-              ) % els.length)
-              setElementFocus(els[i])
-            }
+              setElementSelection(query)
+              key.claim()
+              break
+          }
+        })
 
-            /* Prevent scrolling of page */
-            key.claim()
-            break
-
-          /* All other keys: hand to search query */
-          default:
-            if (query !== getActiveElement())
-              setElementFocus(query)
-        }
-      })
-
-  /* Set up global keyboard handlers */
-  keyboard$
-    .pipe(
-      filter(({ mode }) => mode === "global"),
+    /* Create and return component */
+    const query$ = mountSearchQuery(query, worker)
+    return merge(
+      query$,
+      mountSearchResult(result, worker, { query$ })
     )
-      .subscribe(key => {
-        switch (key.type) {
 
-          /* Open search and select query */
-          case "f":
-          case "s":
-          case "/":
-            setElementFocus(query)
-            setElementSelection(query)
-            key.claim()
-            break
-        }
-      })
-
-  /* Create and return component */
-  const query$ = mountSearchQuery(query, worker)
-  return merge(
-    query$,
-    mountSearchResult(result, worker, { query$ })
-  )
+  /* Gracefully handle broken search */
+  } catch (err) {
+    el.hidden = true
+    return NEVER
+  }
 }