catapult/telemetry/docs/pydoc/telemetry.web_perf.smooth_gesture_util.html - platform/external/chromium-trace - Git at Google


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 <html><head><title>Python: module telemetry.web_perf.smooth_gesture_util</title>
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 </head><body bgcolor="#f0f0f8">

 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
 <tr bgcolor="#7799ee">
 <td valign=bottom>&nbsp;<br>
 <font color="#ffffff" face="helvetica, arial">&nbsp;<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>.smooth_gesture_util</strong></big></big></font></td
 ><td align=right valign=bottom
 ><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/web_perf/smooth_gesture_util.py">telemetry/web_perf/smooth_gesture_util.py</a></font></td></tr></table>
     <p><tt>#&nbsp;Copyright&nbsp;2014&nbsp;The&nbsp;Chromium&nbsp;Authors.&nbsp;All&nbsp;rights&nbsp;reserved.<br>
 #&nbsp;Use&nbsp;of&nbsp;this&nbsp;source&nbsp;code&nbsp;is&nbsp;governed&nbsp;by&nbsp;a&nbsp;BSD-style&nbsp;license&nbsp;that&nbsp;can&nbsp;be<br>
 #&nbsp;found&nbsp;in&nbsp;the&nbsp;LICENSE&nbsp;file.</tt></p>
 <p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#aa55cc">
 <td colspan=3 valign=bottom>&nbsp;<br>
 <font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>

 <tr><td bgcolor="#aa55cc"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
 <td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="copy.html">copy</a><br>
 </td><td width="25%" valign=top><a href="telemetry.web_perf.timeline_interaction_record.html">telemetry.web_perf.timeline_interaction_record</a><br>
 </td><td width="25%" valign=top></td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#eeaa77">
 <td colspan=3 valign=bottom>&nbsp;<br>
 <font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>

 <tr><td bgcolor="#eeaa77"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
 <td width="100%"><dl><dt><a name="-GetAdjustedInteractionIfContainGesture"><strong>GetAdjustedInteractionIfContainGesture</strong></a>(timeline, interaction_record)</dt><dd><tt>Returns&nbsp;a&nbsp;new&nbsp;interaction&nbsp;record&nbsp;if&nbsp;interaction_record&nbsp;contains&nbsp;geture<br>
 whose&nbsp;time&nbsp;range&nbsp;that&nbsp;overlaps&nbsp;with&nbsp;interaction_record's&nbsp;range.&nbsp;If&nbsp;not,<br>
 returns&nbsp;a&nbsp;clone&nbsp;of&nbsp;original&nbsp;interaction_record.<br>
 The&nbsp;synthetic&nbsp;gesture&nbsp;controller&nbsp;inserts&nbsp;a&nbsp;trace&nbsp;marker&nbsp;to&nbsp;precisely<br>
 demarcate&nbsp;when&nbsp;the&nbsp;gesture&nbsp;was&nbsp;running.&nbsp;We&nbsp;check&nbsp;for&nbsp;overlap,&nbsp;not&nbsp;inclusion,<br>
 because&nbsp;gesture_actions&nbsp;can&nbsp;start/end&nbsp;slightly&nbsp;outside&nbsp;the&nbsp;telemetry&nbsp;markers<br>
 on&nbsp;Windows.&nbsp;This&nbsp;problem&nbsp;is&nbsp;probably&nbsp;caused&nbsp;by&nbsp;a&nbsp;race&nbsp;condition&nbsp;between<br>
 the&nbsp;browser&nbsp;and&nbsp;renderer&nbsp;process&nbsp;submitting&nbsp;the&nbsp;trace&nbsp;events&nbsp;for&nbsp;the<br>
 markers.</tt></dd></dl>
 </td></tr></table>
 </body></html>

	<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
	<html><head><title>Python: module telemetry.web_perf.smooth_gesture_util</title>
	<meta charset="utf-8">
	</head><body bgcolor="#f0f0f8">

	<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
	<tr bgcolor="#7799ee">
	<td valign=bottom> <br>
	<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>.smooth_gesture_util</strong></big></big></font></td
	><td align=right valign=bottom
	><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/web_perf/smooth_gesture_util.py">telemetry/web_perf/smooth_gesture_util.py</a></font></td></tr></table>
	<p><tt># Copyright 2014 The Chromium Authors. All rights reserved.<br>
	# Use of this source code is governed by a BSD-style license that can be<br>
	# found in the LICENSE file.</tt></p>
	<p>
	<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
	<tr bgcolor="#aa55cc">
	<td colspan=3 valign=bottom> <br>
	<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>

	<tr><td bgcolor="#aa55cc"><tt>      </tt></td><td> </td>
	<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="copy.html">copy</a><br>
	</td><td width="25%" valign=top><a href="telemetry.web_perf.timeline_interaction_record.html">telemetry.web_perf.timeline_interaction_record</a><br>
	</td><td width="25%" valign=top></td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
	<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
	<tr bgcolor="#eeaa77">
	<td colspan=3 valign=bottom> <br>
	<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>

	<tr><td bgcolor="#eeaa77"><tt>      </tt></td><td> </td>
	<td width="100%"><dl><dt><a name="-GetAdjustedInteractionIfContainGesture"><strong>GetAdjustedInteractionIfContainGesture</strong></a>(timeline, interaction_record)</dt><dd><tt>Returns a new interaction record if interaction_record contains geture<br>
	whose time range that overlaps with interaction_record's range. If not,<br>
	returns a clone of original interaction_record.<br>
	The synthetic gesture controller inserts a trace marker to precisely<br>
	demarcate when the gesture was running. We check for overlap, not inclusion,<br>
	because gesture_actions can start/end slightly outside the telemetry markers<br>
	on Windows. This problem is probably caused by a race condition between<br>
	the browser and renderer process submitting the trace events for the<br>
	markers.</tt></dd></dl>
	</td></tr></table>
	</body></html>