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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/276917">276917</a></dd>
<dt>Author</dt> <dd>repstein@apple.com</dd>
<dt>Date</dt> <dd>2021-05-03 12:56:18 -0700 (Mon, 03 May 2021)</dd>
</dl>

<h3>Log Message</h3>
<pre>Cherry-pick <a href="http://trac.webkit.org/projects/webkit/changeset/276852">r276852</a>. rdar://problem/77468295

    prefers-reduced-motion is not reactive on iOS
    https://bugs.webkit.org/show_bug.cgi?id=222381
    <rdar://75933915>

    Reviewed by Brent Fulgham.

    With CFPrefs direct mode, there is a race between the notification that an accessibility preference has been changed
    by the user, and the the in-memory Accessibility preference cache in the WebContent process. We resolve this by using
    new SPI to clear the cached Accessibility settings when we are notified of an accessibility change so they always
    reflect the user's most recent setting.

    * Platform/spi/Cocoa/AccessibilitySupportSPI.h:
    * WebProcess/cocoa/WebProcessCocoa.mm:
    (WebKit::setPreferenceValue):

    git-svn-id: https://svn.webkit.org/repository/webkit/trunk@276852 268f45cc-cd09-0410-ab3c-d52691b4dbfc</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari611270branchSourceWebKitChangeLog">branches/safari-611.2.7.0-branch/Source/WebKit/ChangeLog</a></li>
<li><a href="#branchessafari611270branchSourceWebKitPlatformspiCocoaAccessibilitySupportSPIh">branches/safari-611.2.7.0-branch/Source/WebKit/Platform/spi/Cocoa/AccessibilitySupportSPI.h</a></li>
<li><a href="#branchessafari611270branchSourceWebKitWebProcesscocoaWebProcessCocoamm">branches/safari-611.2.7.0-branch/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari611270branchSourceWebKitChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-611.2.7.0-branch/Source/WebKit/ChangeLog (276916 => 276917)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-611.2.7.0-branch/Source/WebKit/ChangeLog 2021-05-03 19:53:43 UTC (rev 276916)
+++ branches/safari-611.2.7.0-branch/Source/WebKit/ChangeLog    2021-05-03 19:56:18 UTC (rev 276917)
</span><span class="lines">@@ -1,3 +1,41 @@
</span><ins>+2021-05-03  Russell Epstein  <repstein@apple.com>
+
+        Cherry-pick r276852. rdar://problem/77468295
+
+    prefers-reduced-motion is not reactive on iOS
+    https://bugs.webkit.org/show_bug.cgi?id=222381
+    <rdar://75933915>
+    
+    Reviewed by Brent Fulgham.
+    
+    With CFPrefs direct mode, there is a race between the notification that an accessibility preference has been changed
+    by the user, and the the in-memory Accessibility preference cache in the WebContent process. We resolve this by using
+    new SPI to clear the cached Accessibility settings when we are notified of an accessibility change so they always
+    reflect the user's most recent setting.
+    
+    * Platform/spi/Cocoa/AccessibilitySupportSPI.h:
+    * WebProcess/cocoa/WebProcessCocoa.mm:
+    (WebKit::setPreferenceValue):
+    
+    git-svn-id: https://svn.webkit.org/repository/webkit/trunk@276852 268f45cc-cd09-0410-ab3c-d52691b4dbfc
+
+    2021-04-30  Per Arne Vollan  <pvollan@apple.com>
+
+            prefers-reduced-motion is not reactive on iOS
+            https://bugs.webkit.org/show_bug.cgi?id=222381
+            <rdar://75933915>
+
+            Reviewed by Brent Fulgham.
+
+            With CFPrefs direct mode, there is a race between the notification that an accessibility preference has been changed
+            by the user, and the the in-memory Accessibility preference cache in the WebContent process. We resolve this by using
+            new SPI to clear the cached Accessibility settings when we are notified of an accessibility change so they always
+            reflect the user's most recent setting.
+
+            * Platform/spi/Cocoa/AccessibilitySupportSPI.h:
+            * WebProcess/cocoa/WebProcessCocoa.mm:
+            (WebKit::setPreferenceValue):
+
</ins><span class="cx"> 2021-04-29  Russell Epstein  <repstein@apple.com>
</span><span class="cx"> 
</span><span class="cx">         Cherry-pick r276742. rdar://problem/77326513
</span></span></pre></div>
<a id="branchessafari611270branchSourceWebKitPlatformspiCocoaAccessibilitySupportSPIh"></a>
<div class="modfile"><h4>Modified: branches/safari-611.2.7.0-branch/Source/WebKit/Platform/spi/Cocoa/AccessibilitySupportSPI.h (276916 => 276917)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-611.2.7.0-branch/Source/WebKit/Platform/spi/Cocoa/AccessibilitySupportSPI.h      2021-05-03 19:53:43 UTC (rev 276916)
+++ branches/safari-611.2.7.0-branch/Source/WebKit/Platform/spi/Cocoa/AccessibilitySupportSPI.h 2021-05-03 19:56:18 UTC (rev 276917)
</span><span class="lines">@@ -45,6 +45,8 @@
</span><span class="cx"> extern Boolean _AXSFullKeyboardAccessEnabled();
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><ins>+extern CFStringRef kAXSAccessibilityPreferenceDomain;
+
</ins><span class="cx"> WTF_EXTERN_C_END
</span><span class="cx"> 
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="branchessafari611270branchSourceWebKitWebProcesscocoaWebProcessCocoamm"></a>
<div class="modfile"><h4>Modified: branches/safari-611.2.7.0-branch/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm (276916 => 276917)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-611.2.7.0-branch/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm       2021-05-03 19:53:43 UTC (rev 276916)
+++ branches/safari-611.2.7.0-branch/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm  2021-05-03 19:56:18 UTC (rev 276917)
</span><span class="lines">@@ -162,6 +162,11 @@
</span><span class="cx"> SOFT_LINK_FUNCTION_MAY_FAIL_FOR_SOURCE(WebKit, HIServices, _AXSetAuditTokenIsAuthenticatedCallback, void, (AXAuditTokenIsAuthenticatedCallback callback), (callback))
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><ins>+#if PLATFORM(IOS_FAMILY)
+SOFT_LINK_LIBRARY(libAccessibility)
+SOFT_LINK_OPTIONAL(libAccessibility, _AXSUpdateWebAccessibilitySettings, void, (), ());
+#endif
+
</ins><span class="cx"> namespace WebKit {
</span><span class="cx"> using namespace WebCore;
</span><span class="cx"> 
</span><span class="lines">@@ -1067,6 +1072,13 @@
</span><span class="cx"> #endif
</span><span class="cx">     } else
</span><span class="cx">         CFPreferencesSetValue(key.createCFString().get(), (__bridge CFPropertyListRef)value, domain.createCFString().get(), kCFPreferencesCurrentUser, kCFPreferencesAnyHost);
</span><ins>+
+#if PLATFORM(IOS_FAMILY)
+    if (domain == String(kAXSAccessibilityPreferenceDomain)) {
+        if (_AXSUpdateWebAccessibilitySettingsPtr())
+            _AXSUpdateWebAccessibilitySettingsPtr()();
+    }
+#endif
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void WebProcess::notifyPreferencesChanged(const String& domain, const String& key, const Optional<String>& encodedValue)
</span></span></pre>
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