DevTools: unify Network & CPU throttling

third_party/WebKit/Source/devtools/front_end/mobile_throttling/MobileThrottlingSelector.js

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+MobileThrottling.MobileThrottlingSelector = class {
+  /**
+   * @param {function(!Array<!MobileThrottling.MobileThrottlingConditionsGroup>):!MobileThrottling.ConditionsList} populateCallback
+   * @param {function(number)} selectCallback
+   */
+  constructor(populateCallback, selectCallback) {
+    this._populateCallback = populateCallback;
+    this._selectCallback = selectCallback;
+    MobileThrottling.throttlingManager().addEventListener(
+        MobileThrottling.ThrottlingManager.Events.RateChanged, this._conditionsChanged, this);
+    SDK.multitargetNetworkManager.addEventListener(
+        SDK.MultitargetNetworkManager.Events.ConditionsChanged, this._conditionsChanged, this);
+    /** @type {!MobileThrottling.ConditionsList} */
+    this._options = this._populateOptions();
+    this._conditionsChanged();
+  }
+
+  /**
+   * @param {!MobileThrottling.Conditions} conditions
+   */
+  optionSelected(conditions) {
+    SDK.multitargetNetworkManager.setNetworkConditions(conditions.network);
+    MobileThrottling.throttlingManager().setCPUThrottlingRate(conditions.cpuThrottlingRate);
+  }
+
+  /**
+   * @return {!MobileThrottling.ConditionsList}
+   */
+  _populateOptions() {
+    var disabledGroup = {title: Common.UIString('Disabled'), items: [MobileThrottling.NoThrottlingConditions]};
+    var presetsGroup = {title: Common.UIString('Presets'), items: MobileThrottling.mobilePresets};
+    var advancedGroup = {title: Common.UIString('Advanced'), items: MobileThrottling.advancedMobilePresets};
+    return this._populateCallback([disabledGroup, presetsGroup, advancedGroup]);
+  }
+
+  _conditionsChanged() {
+    var networkConditions = SDK.multitargetNetworkManager.networkConditions();
+    var cpuThrottlingRate = MobileThrottling.throttlingManager().cpuThrottlingRate();
+    for (var index = 0; index < this._options.length; ++index) {
+      var option = this._options[index];
+      if (option && option.network === networkConditions && option.cpuThrottlingRate === cpuThrottlingRate) {
+        this._selectCallback(index);
+        return;
+      }
+    }
+    this._selectCallback(this._options.indexOf(MobileThrottling.CustomConditions));
+  }
+};