1 files changed, 82 insertions, 0 deletions
diff --git a/browser/components/urlbar/UrlbarProviderAboutPages.sys.mjs b/browser/components/urlbar/UrlbarProviderAboutPages.sys.mjs
new file mode 100644
index 0000000000..9b471d26c4
--- /dev/null
+++ b/browser/components/urlbar/UrlbarProviderAboutPages.sys.mjs
@@ -0,0 +1,82 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This module exports a provider that offers about pages.
+ */
+
+import {
+  UrlbarProvider,
+  UrlbarUtils,
+} from "resource:///modules/UrlbarUtils.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  AboutPagesUtils: "resource://gre/modules/AboutPagesUtils.sys.mjs",
+  UrlbarResult: "resource:///modules/UrlbarResult.sys.mjs",
+});
+
+/**
+ * Class used to create the provider.
+ */
+class ProviderAboutPages extends UrlbarProvider {
+  /**
+   * Unique name for the provider, used by the context to filter on providers.
+   *
+   * @returns {string}
+   */
+  get name() {
+    return "AboutPages";
+  }
+
+  /**
+   * The type of the provider, must be one of UrlbarUtils.PROVIDER_TYPE.
+   *
+   * @returns {UrlbarUtils.PROVIDER_TYPE}
+   */
+  get type() {
+    return UrlbarUtils.PROVIDER_TYPE.PROFILE;
+  }
+
+  /**
+   * Whether this provider should be invoked for the given context.
+   * If this method returns false, the providers manager won't start a query
+   * with this provider, to save on resources.
+   *
+   * @param {UrlbarQueryContext} queryContext The query context object
+   * @returns {boolean} Whether this provider should be invoked for the search.
+   */
+  isActive(queryContext) {
+    return queryContext.trimmedSearchString.toLowerCase().startsWith("about:");
+  }
+
+  /**
+   * Starts querying. Extended classes should return a Promise resolved when the
+   * provider is done searching AND returning results.
+   *
+   * @param {UrlbarQueryContext} queryContext The query context object
+   * @param {Function} addCallback Callback invoked by the provider to add a new
+   *        result. A UrlbarResult should be passed to it.
+   */
+  startQuery(queryContext, addCallback) {
+    let searchString = queryContext.trimmedSearchString.toLowerCase();
+    for (const aboutUrl of lazy.AboutPagesUtils.visibleAboutUrls) {
+      if (aboutUrl.startsWith(searchString)) {
+        let result = new lazy.UrlbarResult(
+          UrlbarUtils.RESULT_TYPE.URL,
+          UrlbarUtils.RESULT_SOURCE.HISTORY,
+          ...lazy.UrlbarResult.payloadAndSimpleHighlights(queryContext.tokens, {
+            title: [aboutUrl, UrlbarUtils.HIGHLIGHT.TYPED],
+            url: [aboutUrl, UrlbarUtils.HIGHLIGHT.TYPED],
+            icon: UrlbarUtils.getIconForUrl(aboutUrl),
+          })
+        );
+        addCallback(this, result);
+      }
+    }
+  }
+}
+
+export var UrlbarProviderAboutPages = new ProviderAboutPages();