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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/169570">169570</a></dd>
<dt>Author</dt> <dd>benjamin@webkit.org</dd>
<dt>Date</dt> <dd>2014-06-03 14:31:26 -0700 (Tue, 03 Jun 2014)</dd>
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<h3>Log Message</h3>
<pre>[iOS] Start ignoring common bogus viewport parameters
https://bugs.webkit.org/show_bug.cgi?id=133466
<rdar://problem/16203396>
Patch by Benjamin Poulain <bpoulain@apple.com> on 2014-06-03
Reviewed by Sam Weinig.
Incorrect viewports are spreading really quickly lately. We have to start ignoring
some combinations of arguments as they are almost always used incorrectly, causing
a poor user experience on those websites.
* dom/ViewportArguments.cpp:
(WebCore::finalizeViewportArguments):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoredomViewportArgumentscpp">trunk/Source/WebCore/dom/ViewportArguments.cpp</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (169569 => 169570)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2014-06-03 21:26:50 UTC (rev 169569)
+++ trunk/Source/WebCore/ChangeLog 2014-06-03 21:31:26 UTC (rev 169570)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2014-06-03 Benjamin Poulain <bpoulain@apple.com>
+
+ [iOS] Start ignoring common bogus viewport parameters
+ https://bugs.webkit.org/show_bug.cgi?id=133466
+ <rdar://problem/16203396>
+
+ Reviewed by Sam Weinig.
+
+ Incorrect viewports are spreading really quickly lately. We have to start ignoring
+ some combinations of arguments as they are almost always used incorrectly, causing
+ a poor user experience on those websites.
+
+ * dom/ViewportArguments.cpp:
+ (WebCore::finalizeViewportArguments):
+
</ins><span class="cx"> 2014-06-03 Yusuke Suzuki <utatane.tea@gmail.com>
</span><span class="cx">
</span><span class="cx"> CSS JIT: add support for the "any" pseudo class
</span></span></pre></div>
<a id="trunkSourceWebCoredomViewportArgumentscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/dom/ViewportArguments.cpp (169569 => 169570)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/dom/ViewportArguments.cpp 2014-06-03 21:26:50 UTC (rev 169569)
+++ trunk/Source/WebCore/dom/ViewportArguments.cpp 2014-06-03 21:31:26 UTC (rev 169570)
</span><span class="lines">@@ -404,7 +404,12 @@
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="cx"> void finalizeViewportArguments(ViewportArguments& arguments, const FloatSize& screenSize)
</span><span class="cx"> {
</span><del>- if (arguments.width == ViewportArguments::ValueDeviceWidth)
</del><ins>+ if (arguments.width == ViewportArguments::ValueDeviceWidth && (arguments.zoom == 1 || arguments.minZoom == 1)) {
+ // A large amount of pages are using the viewport width=device-width + scaling parameters incorrectly.
+ // This has become so pervasive that the vast majority of those pages render better without viewport meta tag than with it.
+ // Clearing the width is a workaround for the most common incorrect viewports. :(
+ arguments.width = ViewportArguments::ValueAuto;
+ } else if (arguments.width == ViewportArguments::ValueDeviceWidth)
</ins><span class="cx"> arguments.width = screenSize.width();
</span><span class="cx"> else if (arguments.width == ViewportArguments::ValueDeviceHeight)
</span><span class="cx"> arguments.width = screenSize.height();
</span></span></pre>
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