[DevTools] Start/stop of timeline recording should set UI controls disabled/enabled respectively.

Source/devtools/front_end/timeline/TimelinePanel.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 307 matching lines @@
     _removeAllModeViews: function()
     {
         for (var i = 0; i < this._currentViews.length; ++i) {
             this._currentViews[i].removeEventListener(WebInspector.SplitView.Events.SidebarSizeChanged, this._sidebarResized, this);
             this._currentViews[i].dispose();
         }
         this._currentViews = [];
         this._stackView.detachChildViews();
     },
 
+    /**
+     * @param {string} name
+     * @param {!WebInspector.Setting} setting
+     * @param {string} tooltip
+     * @return {!Element}
+     */
+    _createSettingCheckbox: function(name, setting, tooltip)
+    {
+        if (!this._recordingOptionUIControls)
+            this._recordingOptionUIControls = [];
+
+        var checkboxElement = document.createElement("input");
+        var labelElement = WebInspector.SettingsUI.createSettingCheckbox(name, setting, true, checkboxElement, tooltip);
+        this._recordingOptionUIControls.push({ "label": labelElement, "checkbox": checkboxElement });
+        return labelElement;
+    },
+
     _createRecordingOptions: function()
     {
         var topPaneSidebarElement = this._topPane.sidebarElement();
 
         this._captureStacksSetting = WebInspector.settings.createSetting("timelineCaptureStacks", true);
-        topPaneSidebarElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Capture stacks"),
-                                          this._captureStacksSetting, true, undefined,
-                                          WebInspector.UIString("Capture JavaScript stack on every timeline event")));
+        topPaneSidebarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Capture stacks"),
+                                                                      this._captureStacksSetting,
+                                                                      WebInspector.UIString("Capture JavaScript stack on every timeline event")));
 
         this._captureMemorySetting = WebInspector.settings.createSetting("timelineCaptureMemory", false);
-        topPaneSidebarElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Capture memory"),
-                                          this._captureMemorySetting, true, undefined,
-                                          WebInspector.UIString("Capture memory information on every timeline event")));
+        topPaneSidebarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Capture memory"),
+                                                                      this._captureMemorySetting,
+                                                                      WebInspector.UIString("Capture memory information on every timeline event")));
         this._captureMemorySetting.addChangeListener(this._onModeChanged, this);
 
         if (Capabilities.canProfilePower) {
             this._capturePowerSetting = WebInspector.settings.createSetting("timelineCapturePower", false);
-            topPaneSidebarElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Capture power"),
-                                              this._capturePowerSetting, true, undefined,
-                                              WebInspector.UIString("Capture power information")));
+            topPaneSidebarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Capture power"),
+                                                                          this._capturePowerSetting,
+                                                                          WebInspector.UIString("Capture power information")));
             this._capturePowerSetting.addChangeListener(this._onModeChanged, this);
         }
 
         if (WebInspector.experimentsSettings.timelineTracingMode.isEnabled()) {
             this._captureTracingSetting = WebInspector.settings.createSetting("timelineCaptureTracing", false);
-            topPaneSidebarElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Capture tracing"),
-                                              this._captureTracingSetting, true, undefined,
-                                              WebInspector.UIString("Capture tracing information")));
+            topPaneSidebarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Capture tracing"),
+                                                                          this._captureTracingSetting,
+                                                                          WebInspector.UIString("Capture tracing information")));
             this._captureTracingSetting.addChangeListener(this._onModeChanged, this);
         } else if (WebInspector.experimentsSettings.timelineOnTraceEvents.isEnabled()) {
             this._captureLayersAndPicturesSetting = WebInspector.settings.createSetting("timelineCaptureLayersAndPictures", false);
-            topPaneSidebarElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Capture pictures"),
-                                              this._captureLayersAndPicturesSetting, true, undefined,
-                                              WebInspector.UIString("Capture graphics layer positions and painted pictures")));
+            topPaneSidebarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Capture pictures"),
+                                                                          this._captureLayersAndPicturesSetting,
+                                                                          WebInspector.UIString("Capture graphics layer positions and painted pictures")));
         }
     },
 
     _createStatusBarItems: function()
     {
         var panelStatusBarElement = this.element.createChild("div", "panel-status-bar");
         this._statusBarButtons = /** @type {!Array.<!WebInspector.StatusBarItem>} */ ([]);
 
         this.toggleTimelineButton = new WebInspector.StatusBarButton("", "record-profile-status-bar-item");
         this.toggleTimelineButton.addEventListener("click", this._toggleTimelineButtonClicked, this);
@@ skipping 286 matching lines @@
 
         this._timelineView().setFrameModel(isFrameMode ? this._frameModel() : null);
         this._overviewPane.setOverviewControls(this._overviewControls);
         this.doResize();
         this._updateSelectedRangeStats();
 
         this._stackView.show(this._searchableView.element);
     },
 
     /**
+     * @param {boolean} disabled
+     */
+    _disableUIControls: function(disabled) {
+        function handler(uiControl)
+        {
+            uiControl.checkbox.disabled = disabled;
+            uiControl.label.classList.toggle("dimmed", disabled);
+        }
+        this._recordingOptionUIControls.forEach(handler);
+        WebInspector.inspectorView.setCurrentPanelLocked(disabled);
+    },
+
+    /**
      * @param {boolean} userInitiated
      */
     _startRecording: function(userInitiated)
     {
         this._userInitiatedRecording = userInitiated;
         this._model.startRecording(this._captureStacksSetting.get(), this._captureMemorySetting.get(), this._captureLayersAndPicturesSetting && this._captureLayersAndPicturesSetting.get());
         if (WebInspector.experimentsSettings.timelineNoLiveUpdate.isEnabled() && this._lazyFrameModel)
             this._lazyFrameModel.setMergeRecords(false);
 
         for (var i = 0; i < this._overviewControls.length; ++i)
             this._overviewControls[i].timelineStarted();
 
         if (userInitiated)
             WebInspector.userMetrics.TimelineStarted.record();
-        WebInspector.inspectorView.setCurrentPanelLocked(true);
+        this._disableUIControls(true);

[loislo, 2014/07/03 13:00:48]

Please change the name to positive logic: this._setUIControlsEnabled

     },
 
     _stopRecording: function()
     {
         this._stopPending = true;
         this._updateToggleTimelineButton(false);
         this._userInitiatedRecording = false;
         this._model.stopRecording();
         if (this._progressElement)
             this._updateProgress(WebInspector.UIString("Retrieving events\u2026"));
 
         for (var i = 0; i < this._overviewControls.length; ++i)
             this._overviewControls[i].timelineStopped();
-        WebInspector.inspectorView.setCurrentPanelLocked(false);
+        this._disableUIControls(false);
     },
 
     _onProfilingStateChanged: function()
     {
         this._updateToggleTimelineButton(this.toggleTimelineButton.toggled);
     },
 
     /**
      * @param {boolean} toggled
      */
@@ skipping 738 matching lines @@
      * @param {!WebInspector.TimelineModel.Record} record
      * @return {boolean}
      */
     accept: function(record)
     {
         return !this._regex || this._uiUtils.testContentMatching(record, this._regex);
     },
 
     __proto__: WebInspector.TimelineModel.Filter.prototype
 }