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List: webkit-unassigned
Subject: [Webkit-unassigned] [Bug 141116] New: Mousemove event is not firing as intended
From: bugzilla-daemon () webkit ! org
Date: 2015-01-31 15:28:59
Message-ID: bug-141116-2851 () https ! bugs ! webkit ! org/
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--1422718148.aE650.22879
Date: Sat, 31 Jan 2015 07:29:08 -0800
MIME-Version: 1.0
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https://bugs.webkit.org/show_bug.cgi?id=141116
Bug ID: 141116
Summary: Mousemove event is not firing as intended
Classification: Unclassified
Product: WebKit
Version: 420+
Hardware: PC
OS: Windows 8
Status: NEW
Severity: Normal
Priority: P2
Component: HTML Events
Assignee: webkit-unassigned@lists.webkit.org
Reporter: wowmotty@gmail.com
Created attachment 245781
--> https://bugs.webkit.org/attachment.cgi?id=245781&action=review
CPU Profile of 12 image demo
I apologize in advance for not being able to determine the exact issue here, or \
provide a reduced test case.
Overview: Essentially, this is was found while using the jQuery AnythingZoomer \
plugin. There is a significant delay (2-3 seconds) that is introduced when trying to \
position a div containing more than 10 stacked images under the cursor; with 10 or \
less images the behavior is as expected. This issue does not occur in Firefox, Opera \
or IE11 (I didn't test in older IE versions).
Here is a demo of the plugin behaving as expected (10 images in large container): \
http://jsfiddle.net/5j354atc/3/ Here is a demo of the huge delay (12 images in large \
container): http://jsfiddle.net/5j354atc/2/
Steps to Reproduce:
1) Load the demo; there is an expected initialization delay of a second or two.
2) Move the mouse anywhere over the map.
3) Notice how long it takes for the zoom window to appear under the mouse.
Actual Results:
In the 12 image demo, I ran and profile and examined the flame graph (CPU profile \
attached). I noticed that jQuery was not receiving any mousemove events
--
You are receiving this mail because:
You are the assignee for the bug.
--1422718148.aE650.22879
Date: Sat, 31 Jan 2015 07:29:08 -0800
MIME-Version: 1.0
Content-Type: text/html
<html>
<head>
<base href="https://bugs.webkit.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Mousemove event is not firing as intended"
href="https://bugs.webkit.org/show_bug.cgi?id=141116">141116</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Mousemove event is not firing as intended
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>420+
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows 8
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>HTML Events
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>wowmotty@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=245781" \
name="attach_245781" title="CPU Profile of 12 image demo">attachment 245781</a> <a \
href="attachment.cgi?id=245781&action=edit" title="CPU Profile of 12 image \
demo">[details]</a></span> CPU Profile of 12 image demo
I apologize in advance for not being able to determine the exact issue here, or \
provide a reduced test case.
Overview: Essentially, this is was found while using the jQuery AnythingZoomer \
plugin. There is a significant delay (2-3 seconds) that is introduced when trying to \
position a div containing more than 10 stacked images under the cursor; with 10 or \
less images the behavior is as expected. This issue does not occur in Firefox, Opera \
or IE11 (I didn't test in older IE versions).
Here is a demo of the plugin behaving as expected (10 images in large container): <a \
href="http://jsfiddle.net/5j354atc/3/">http://jsfiddle.net/5j354atc/3/</a> Here is a \
demo of the huge delay (12 images in large container): <a \
href="http://jsfiddle.net/5j354atc/2/">http://jsfiddle.net/5j354atc/2/</a>
Steps to Reproduce:
1) Load the demo; there is an expected initialization delay of a second or two.
2) Move the mouse anywhere over the map.
3) Notice how long it takes for the zoom window to appear under the mouse.
Actual Results:
In the 12 image demo, I ran and profile and examined the flame graph (CPU profile \
attached). I noticed that jQuery was not receiving any mousemove events</pre> </div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
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--1422718148.aE650.22879--
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