1 files changed, 104 insertions, 0 deletions
diff --git a/devtools/client/shared/components/throttling/profiles.js b/devtools/client/shared/components/throttling/profiles.js
new file mode 100644
index 0000000000..85dc3b1158
--- /dev/null
+++ b/devtools/client/shared/components/throttling/profiles.js
@@ -0,0 +1,104 @@
+/* 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/. */
+
+"use strict";
+
+const K = 1024;
+const M = 1024 * 1024;
+const Bps = 1 / 8;
+const KBps = K * Bps;
+const MBps = M * Bps;
+
+const { LocalizationHelper } = require("resource://devtools/shared/l10n.js");
+const L10N = new LocalizationHelper(
+  "devtools/client/locales/network-throttling.properties"
+);
+
+/**
+ * Predefined network throttling profiles.
+ * Speeds are in bytes per second.  Latency is in ms.
+ */
+
+class ThrottlingProfile {
+  constructor({ id, download, upload, latency }) {
+    this.id = id;
+    this.download = download;
+    this.upload = upload;
+    this.latency = latency;
+  }
+
+  get description() {
+    const download = this.#toDescriptionData(this.download);
+    const upload = this.#toDescriptionData(this.upload);
+    return L10N.getFormatStr(
+      "throttling.profile.description",
+      download.value,
+      download.unit,
+      upload.value,
+      upload.unit,
+      this.latency
+    );
+  }
+
+  #toDescriptionData(val) {
+    if (val % MBps === 0) {
+      return { value: val / MBps, unit: "Mbps" };
+    }
+    return { value: val / KBps, unit: "Kbps" };
+  }
+}
+
+// Should be synced with devtools/docs/user/network_monitor/throttling/index.rst
+const profiles = [
+  {
+    id: "GPRS",
+    download: 50 * KBps,
+    upload: 20 * KBps,
+    latency: 500,
+  },
+  {
+    id: "Regular 2G",
+    download: 250 * KBps,
+    upload: 50 * KBps,
+    latency: 300,
+  },
+  {
+    id: "Good 2G",
+    download: 450 * KBps,
+    upload: 150 * KBps,
+    latency: 150,
+  },
+  {
+    id: "Regular 3G",
+    download: 750 * KBps,
+    upload: 250 * KBps,
+    latency: 100,
+  },
+  {
+    id: "Good 3G",
+    download: 1.5 * MBps,
+    upload: 750 * KBps,
+    latency: 40,
+  },
+  {
+    id: "Regular 4G / LTE",
+    download: 4 * MBps,
+    upload: 3 * MBps,
+    latency: 20,
+  },
+  {
+    id: "DSL",
+    download: 2 * MBps,
+    upload: 1 * MBps,
+    latency: 5,
+  },
+  {
+    id: "Wi-Fi",
+    download: 30 * MBps,
+    upload: 15 * MBps,
+    latency: 2,
+  },
+].map(profile => new ThrottlingProfile(profile));
+
+module.exports = profiles;