TimelineFlameChart: selectRecord implementation

Source/devtools/front_end/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 563 matching lines @@
 
     _onClearButtonClick: function()
     {
         this._model.reset();
     },
 
     _onRecordsCleared: function()
     {
         this.requestWindowTimes(0, Infinity);
         this._windowFilter._reset();
+        delete this._selectedRecord;
         if (this._lazyFrameModel)
             this._lazyFrameModel.reset();
         for (var i = 0; i < this._currentViews.length; ++i)
             this._currentViews[i].reset();
         this._overviewControl.reset();
         this._updateSelectionDetails();
     },
 
     _onRecordingStarted: function()
     {
@@ skipping 148 matching lines @@
      */
     performSearch: function(query, shouldJump)
     {
         this._searchRegex = createPlainTextSearchRegex(query, "i");
         delete this._searchResults;
         this._updateSearchHighlight(true, shouldJump);
     },
 
     _updateSelectionDetails: function()
     {
+        if (this._selectedRecord)
+            return;
+
         var startTime = this._windowStartTime;
         var endTime = this._windowEndTime;
 
         // Return early in case 0 selection window.
         if (startTime < 0)
             return;
 
         var aggregatedStats = {};
 
         /**
@@ skipping 49 matching lines @@
         var title = WebInspector.UIString("%s \u2013 %s", Number.millisToString(startOffset), Number.millisToString(endOffset));
         this._detailsView.setContent(title, fragment);
     },
 
     /**
      * @param {?WebInspector.TimelineModel.Record} record
      */
     selectRecord: function(record)
     {
         this._detailsLinkifier.reset();
+        this._selectedRecord = record;
 
         if (!record) {
             this._updateSelectionDetails();
             return;
         }
 
         for (var i = 0; i < this._currentViews.length; ++i) {
             var view = this._currentViews[i];
             view.setSelectedRecord(record);
         }
@@ skipping 298 matching lines @@
      * @param {!WebInspector.TimelineModel.Record} record
      * @return {boolean}
      */
     accept: function(record)
     {
         return !this._hiddenRecords[record.type];
     },
 
     __proto__: WebInspector.TimelineModel.Filter.prototype
 }