text: /*
   * Copyright (C) 2010 Google 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.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /**
   * @constructor
   * @extends {WebInspector.View}
   * @param {WebInspector.NetworkRequest} request
   */
  WebInspector.RequestTimingView = function(request)
  {
      WebInspector.View.call(this);
      this.element.addStyleClass("resource-timing-view");
  
      this._request = request;
  }
  
  WebInspector.RequestTimingView.prototype = {
      wasShown: function()
      {
          this._request.addEventListener(WebInspector.NetworkRequest.Events.TimingChanged, this._refresh, this);
  
          if (!this._request.timing) {
              if (!this._emptyView) {
                  this._emptyView = new WebInspector.EmptyView(WebInspector.UIString("This request has no detailed timing info."));
                  this._emptyView.show(this.element);
                  this.innerView = this._emptyView;
              }
              return;
          }
  
          if (this._emptyView) {
              this._emptyView.detach();
              delete this._emptyView;
          }
  
          this._refresh();
      },
  
      willHide: function()
      {
          this._request.removeEventListener(WebInspector.NetworkRequest.Events.TimingChanged, this._refresh, this);
      },
  
      _refresh: function()
      {
          if (this._tableElement)
              this._tableElement.parentElement.removeChild(this._tableElement);
  
          this._tableElement = WebInspector.RequestTimingView.createTimingTable(this._request);
          this.element.appendChild(this._tableElement);
      },
  
      __proto__: WebInspector.View.prototype
  }
  
  
  WebInspector.RequestTimingView.createTimingTable = function(request)
  {
      var tableElement = document.createElement("table");
      var rows = [];
  
      function addRow(title, className, start, end)
      {
          var row = {};
          row.title = title;
          row.className = className;
          row.start = start;
          row.end = end;
          rows.push(row);
      }
  
      if (request.timing.proxyStart !== -1)
          addRow(WebInspector.UIString("Proxy"), "proxy", request.timing.proxyStart, request.timing.proxyEnd);
  
      if (request.timing.dnsStart !== -1)
          addRow(WebInspector.UIString("DNS Lookup"), "dns", request.timing.dnsStart, request.timing.dnsEnd);
  
      if (request.timing.connectStart !== -1) {
          if (request.connectionReused)
              addRow(WebInspector.UIString("Blocking"), "connecting", request.timing.connectStart, request.timing.connectEnd);
          else {
              var connectStart = request.timing.connectStart;
              // Connection includes DNS, subtract it here.
              if (request.timing.dnsStart !== -1)
                  connectStart += request.timing.dnsEnd - request.timing.dnsStart;
              addRow(WebInspector.UIString("Connecting"), "connecting", connectStart, request.timing.connectEnd);
          }
      }
  
      if (request.timing.sslStart !== -1)
          addRow(WebInspector.UIString("SSL"), "ssl", request.timing.sslStart, request.timing.sslEnd);
  
      var sendStart = request.timing.sendStart;
      if (request.timing.sslStart !== -1)
          sendStart += request.timing.sslEnd - request.timing.sslStart;
  
      addRow(WebInspector.UIString("Sending"), "sending", request.timing.sendStart, request.timing.sendEnd);
      addRow(WebInspector.UIString("Waiting"), "waiting", request.timing.sendEnd, request.timing.receiveHeadersEnd);
      addRow(WebInspector.UIString("Receiving"), "receiving", (request.responseReceivedTime - request.timing.requestTime) * 1000, (request.endTime - request.timing.requestTime) * 1000);
  
      const chartWidth = 200;
      var total = (request.endTime - request.timing.requestTime) * 1000;
      var scale = chartWidth / total;
  
      for (var i = 0; i < rows.length; ++i) {
          var tr = document.createElement("tr");
          tableElement.appendChild(tr);
  
          var td = document.createElement("td");
          td.textContent = rows[i].title;
          tr.appendChild(td);
  
          td = document.createElement("td");
          td.width = chartWidth + "px";
  
          var row = document.createElement("div");
          row.className = "network-timing-row";
          td.appendChild(row);
  
          var bar = document.createElement("span");
          bar.className = "network-timing-bar " + rows[i].className;
          bar.style.left = scale * rows[i].start + "px";
          bar.style.right = scale * (total - rows[i].end) + "px";
          bar.style.backgroundColor = rows[i].color;
          bar.textContent = "\u200B"; // Important for 0-time items to have 0 width.
          row.appendChild(bar);
  
          var title = document.createElement("span");
          title.className = "network-timing-bar-title";
          if (total - rows[i].end < rows[i].start)
              title.style.right = (scale * (total - rows[i].end) + 3) + "px";
          else
              title.style.left = (scale * rows[i].start + 3) + "px";
          title.textContent = Number.secondsToString((rows[i].end - rows[i].start) / 1000);
          row.appendChild(title);
  
          tr.appendChild(td);
      }
      return tableElement;
  }
  