1 2<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 3<html><head><title>Python: module telemetry.web_perf.metrics.layout</title> 4<meta charset="utf-8"> 5</head><body bgcolor="#f0f0f8"> 6 7<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading"> 8<tr bgcolor="#7799ee"> 9<td valign=bottom> <br> 10<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="telemetry.html"><font color="#ffffff">telemetry</font></a>.<a href="telemetry.web_perf.html"><font color="#ffffff">web_perf</font></a>.<a href="telemetry.web_perf.metrics.html"><font color="#ffffff">metrics</font></a>.layout</strong></big></big></font></td 11><td align=right valign=bottom 12><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/web_perf/metrics/layout.py">telemetry/web_perf/metrics/layout.py</a></font></td></tr></table> 13 <p><tt># Copyright 2014 The Chromium Authors. All rights reserved.<br> 14# Use of this source code is governed by a BSD-style license that can be<br> 15# found in the LICENSE file.</tt></p> 16<p> 17<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 18<tr bgcolor="#aa55cc"> 19<td colspan=3 valign=bottom> <br> 20<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr> 21 22<tr><td bgcolor="#aa55cc"><tt> </tt></td><td> </td> 23<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="telemetry.web_perf.metrics.single_event.html">telemetry.web_perf.metrics.single_event</a><br> 24</td><td width="25%" valign=top></td><td width="25%" valign=top></td><td width="25%" valign=top></td></tr></table></td></tr></table><p> 25<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 26<tr bgcolor="#ee77aa"> 27<td colspan=3 valign=bottom> <br> 28<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr> 29 30<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td> 31<td width="100%"><dl> 32<dt><font face="helvetica, arial"><a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a>(<a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a>) 33</font></dt><dd> 34<dl> 35<dt><font face="helvetica, arial"><a href="telemetry.web_perf.metrics.layout.html#LayoutMetric">LayoutMetric</a> 36</font></dt></dl> 37</dd> 38</dl> 39 <p> 40<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 41<tr bgcolor="#ffc8d8"> 42<td colspan=3 valign=bottom> <br> 43<font color="#000000" face="helvetica, arial"><a name="LayoutMetric">class <strong>LayoutMetric</strong></a>(<a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a>)</font></td></tr> 44 45<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td> 46<td colspan=2><tt>Reports directly durations of FrameView::performLayout events.<br> 47 <br> 48 layout: Durations of FrameView::performLayout events that were caused by and<br> 49 start during user interaction.<br> 50 <br> 51Layout happens no more than once per frame, so per-frame-ness is implied.<br> </tt></td></tr> 52<tr><td> </td> 53<td width="100%"><dl><dt>Method resolution order:</dt> 54<dd><a href="telemetry.web_perf.metrics.layout.html#LayoutMetric">LayoutMetric</a></dd> 55<dd><a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a></dd> 56<dd><a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a></dd> 57<dd><a href="__builtin__.html#object">__builtin__.object</a></dd> 58</dl> 59<hr> 60Methods defined here:<br> 61<dl><dt><a name="LayoutMetric-__init__"><strong>__init__</strong></a>(self)</dt></dl> 62 63<hr> 64Methods inherited from <a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a>:<br> 65<dl><dt><a name="LayoutMetric-AddResults"><strong>AddResults</strong></a>(self, _model, renderer_thread, interactions, results)</dt></dl> 66 67<hr> 68Methods inherited from <a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a>:<br> 69<dl><dt><a name="LayoutMetric-AddWholeTraceResults"><strong>AddWholeTraceResults</strong></a>(self, model, results)</dt><dd><tt>Computes and adds metrics corresponding to the entire trace.<br> 70 <br> 71Override this method to compute results that correspond to the whole trace.<br> 72 <br> 73Args:<br> 74 model: An instance of telemetry.timeline.model.TimelineModel.<br> 75 results: An instance of page.PageTestResults.</tt></dd></dl> 76 77<dl><dt><a name="LayoutMetric-VerifyNonOverlappedRecords"><strong>VerifyNonOverlappedRecords</strong></a>(self, interaction_records)</dt><dd><tt>This raises exceptions if interaction_records contain overlapped ranges.</tt></dd></dl> 78 79<hr> 80Data descriptors inherited from <a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a>:<br> 81<dl><dt><strong>__dict__</strong></dt> 82<dd><tt>dictionary for instance variables (if defined)</tt></dd> 83</dl> 84<dl><dt><strong>__weakref__</strong></dt> 85<dd><tt>list of weak references to the object (if defined)</tt></dd> 86</dl> 87</td></tr></table></td></tr></table><p> 88<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 89<tr bgcolor="#55aa55"> 90<td colspan=3 valign=bottom> <br> 91<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr> 92 93<tr><td bgcolor="#55aa55"><tt> </tt></td><td> </td> 94<td width="100%"><strong>EVENT_NAME</strong> = 'FrameView::performLayout'<br> 95<strong>METRIC_NAME</strong> = 'layout'</td></tr></table> 96</body></html>