1 files changed, 95 insertions, 0 deletions
diff --git a/browser/components/urlbar/UrlbarProviderAliasEngines.sys.mjs b/browser/components/urlbar/UrlbarProviderAliasEngines.sys.mjs
new file mode 100644
index 0000000000..da14203492
--- /dev/null
+++ b/browser/components/urlbar/UrlbarProviderAliasEngines.sys.mjs
@@ -0,0 +1,95 @@
+/* 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 engines with aliases as heuristic
+ * results.
+ */
+
+import {
+  UrlbarProvider,
+  UrlbarUtils,
+} from "resource:///modules/UrlbarUtils.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  UrlbarResult: "resource:///modules/UrlbarResult.sys.mjs",
+  UrlbarSearchUtils: "resource:///modules/UrlbarSearchUtils.sys.mjs",
+  UrlbarTokenizer: "resource:///modules/UrlbarTokenizer.sys.mjs",
+});
+
+/**
+ * Class used to create the provider.
+ */
+class ProviderAliasEngines extends UrlbarProvider {
+  /**
+   * Returns the name of this provider.
+   *
+   * @returns {string} the name of this provider.
+   */
+  get name() {
+    return "AliasEngines";
+  }
+
+  /**
+   * Returns the type of this provider.
+   *
+   * @returns {integer} one of the types from UrlbarUtils.PROVIDER_TYPE.*
+   */
+  get type() {
+    return UrlbarUtils.PROVIDER_TYPE.HEURISTIC;
+  }
+
+  /**
+   * 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.restrictSource ||
+        queryContext.restrictSource == lazy.UrlbarTokenizer.RESTRICT.SEARCH) &&
+      !queryContext.searchMode &&
+      queryContext.tokens.length
+    );
+  }
+
+  /**
+   * Starts querying.
+   *
+   * @param {object} queryContext The query context object
+   * @param {Function} addCallback Callback invoked by the provider to add a new
+   *        result.
+   */
+  async startQuery(queryContext, addCallback) {
+    let instance = this.queryInstance;
+    let alias = queryContext.tokens[0]?.value;
+    let engine = await lazy.UrlbarSearchUtils.engineForAlias(
+      alias,
+      queryContext.searchString
+    );
+    if (!engine || instance != this.queryInstance) {
+      return;
+    }
+    let query = UrlbarUtils.substringAfter(queryContext.searchString, alias);
+    let result = new lazy.UrlbarResult(
+      UrlbarUtils.RESULT_TYPE.SEARCH,
+      UrlbarUtils.RESULT_SOURCE.SEARCH,
+      ...lazy.UrlbarResult.payloadAndSimpleHighlights(queryContext.tokens, {
+        engine: engine.name,
+        keyword: alias,
+        query: query.trimStart(),
+        icon: engine.iconURI?.spec,
+      })
+    );
+    result.heuristic = true;
+    addCallback(this, result);
+  }
+}
+
+export var UrlbarProviderAliasEngines = new ProviderAliasEngines();