1 files changed, 180 insertions, 0 deletions
diff --git a/browser/components/urlbar/UrlbarProviderUnitConversion.sys.mjs b/browser/components/urlbar/UrlbarProviderUnitConversion.sys.mjs
new file mode 100644
index 0000000000..dfca0774a6
--- /dev/null
+++ b/browser/components/urlbar/UrlbarProviderUnitConversion.sys.mjs
@@ -0,0 +1,180 @@
+/* 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/. */
+
+/**
+ * Provide unit converter.
+ */
+
+import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
+
+import { UnitConverterSimple } from "resource:///modules/UnitConverterSimple.sys.mjs";
+import { UnitConverterTemperature } from "resource:///modules/UnitConverterTemperature.sys.mjs";
+import { UnitConverterTimezone } from "resource:///modules/UnitConverterTimezone.sys.mjs";
+import {
+  UrlbarProvider,
+  UrlbarUtils,
+} from "resource:///modules/UrlbarUtils.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  UrlbarPrefs: "resource:///modules/UrlbarPrefs.sys.mjs",
+  UrlbarResult: "resource:///modules/UrlbarResult.sys.mjs",
+  UrlbarView: "resource:///modules/UrlbarView.sys.mjs",
+});
+
+XPCOMUtils.defineLazyServiceGetter(
+  lazy,
+  "ClipboardHelper",
+  "@mozilla.org/widget/clipboardhelper;1",
+  "nsIClipboardHelper"
+);
+
+const CONVERTERS = [
+  new UnitConverterSimple(),
+  new UnitConverterTemperature(),
+  new UnitConverterTimezone(),
+];
+
+const DYNAMIC_RESULT_TYPE = "unitConversion";
+const VIEW_TEMPLATE = {
+  attributes: {
+    selectable: true,
+  },
+  children: [
+    {
+      name: "content",
+      tag: "span",
+      classList: ["urlbarView-no-wrap"],
+      children: [
+        {
+          name: "icon",
+          tag: "img",
+          classList: ["urlbarView-favicon"],
+          attributes: {
+            src: "chrome://global/skin/icons/edit-copy.svg",
+          },
+        },
+        {
+          name: "output",
+          tag: "strong",
+        },
+        {
+          name: "action",
+          tag: "span",
+        },
+      ],
+    },
+  ],
+};
+
+/**
+ * Provide a feature that converts given units.
+ */
+class ProviderUnitConversion extends UrlbarProvider {
+  constructor() {
+    super();
+    lazy.UrlbarResult.addDynamicResultType(DYNAMIC_RESULT_TYPE);
+    lazy.UrlbarView.addDynamicViewTemplate(DYNAMIC_RESULT_TYPE, VIEW_TEMPLATE);
+  }
+
+  /**
+   * Returns the name of this provider.
+   *
+   * @returns {string} the name of this provider.
+   */
+  get name() {
+    return "UnitConversion";
+  }
+
+  /**
+   * Returns the type of this provider.
+   *
+   * @returns {integer} one of the types from UrlbarUtils.PROVIDER_TYPE.*
+   */
+  get type() {
+    return UrlbarUtils.PROVIDER_TYPE.PROFILE;
+  }
+
+  /**
+   * Whether the 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({ searchString }) {
+    if (!lazy.UrlbarPrefs.get("unitConversion.enabled")) {
+      return false;
+    }
+
+    for (const converter of CONVERTERS) {
+      const result = converter.convert(searchString);
+      if (result) {
+        this._activeResult = result;
+        return true;
+      }
+    }
+
+    this._activeResult = null;
+    return false;
+  }
+
+  /**
+   * This is called only for dynamic result types, when the urlbar view updates
+   * the view of one of the results of the provider.  It should return an object
+   * describing the view update.
+   *
+   * @param {UrlbarResult} result The result whose view will be updated.
+   * @returns {object} An object describing the view update.
+   */
+  getViewUpdate(result) {
+    return {
+      output: {
+        textContent: result.payload.output,
+      },
+      action: {
+        l10n: { id: "urlbar-result-action-copy-to-clipboard" },
+      },
+    };
+  }
+
+  /**
+   * This method is called by the providers manager when a query starts to fetch
+   * each extension provider's results.  It fires the resultsRequested event.
+   *
+   * @param {UrlbarQueryContext} queryContext
+   *   The query context object.
+   * @param {Function} addCallback
+   *   The callback invoked by this method to add each result.
+   */
+  startQuery(queryContext, addCallback) {
+    const result = new lazy.UrlbarResult(
+      UrlbarUtils.RESULT_TYPE.DYNAMIC,
+      UrlbarUtils.RESULT_SOURCE.OTHER_LOCAL,
+      {
+        dynamicType: DYNAMIC_RESULT_TYPE,
+        output: this._activeResult,
+        input: queryContext.searchString,
+      }
+    );
+    result.suggestedIndex = lazy.UrlbarPrefs.get(
+      "unitConversion.suggestedIndex"
+    );
+
+    addCallback(this, result);
+  }
+
+  pickResult(result, element) {
+    const { textContent } = element.querySelector(
+      ".urlbarView-dynamic-unitConversion-output"
+    );
+    lazy.ClipboardHelper.copyString(textContent);
+  }
+}
+
+export const UrlbarProviderUnitConversion = new ProviderUnitConversion();