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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/185828">185828</a></dd>
<dt>Author</dt> <dd>dbates@webkit.org</dd>
<dt>Date</dt> <dd>2015-06-22 09:17:04 -0700 (Mon, 22 Jun 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>AX: UI Automation cannot find AutoFill or search cancel buttons
https://bugs.webkit.org/show_bug.cgi?id=145241
&lt;rdar://problem/21051411&gt;

Reviewed by Chris Fleizach.

Source/WebCore:

Add support for hit testing the search cancel button and AutoFill button so that
they can be accessed by UI Automation.

Currently the accessibility hit test machinery ignores nodes in a shadow tree.
So, it neither finds the &lt;input type=&quot;search&quot;&gt; cancel button nor the AutoFill button
when it performs a hit test. Therefore these buttons cannot be accessed using
UI Automation.

Tests: accessibility/hit-test-input-auto-fill-button.html
       accessibility/hit-test-input-search-cancel-button.html
       accessibility/input-search-cancel-button.html

* accessibility/AccessibilityRenderObject.cpp:
(WebCore::AccessibilityRenderObject::accessibilityTextFieldDecorationHitTest): Added; returns
the AccessibilityObject for the search cancel button or AutoFill text field decoration as applicable.
(WebCore::AccessibilityRenderObject::accessibilityHitTest): Check whether the hit node
is a text field decoration.

LayoutTests:

Add tests to ensure that there exists an accessibility element for the
search cancel button and that it can be hit using a cursor position. Also
add a test to ensue that the AutoFill button can be hit using a cursor position.

* accessibility/hit-test-input-auto-fill-button-expected.txt: Added.
* accessibility/hit-test-input-auto-fill-button.html: Copied from LayoutTests/accessibility/input-auto-fill-button.html.
* accessibility/hit-test-input-search-cancel-button-expected.txt: Added.
* accessibility/hit-test-input-search-cancel-button.html: Added.
* accessibility/input-search-cancel-button-expected.txt: Added.
* accessibility/input-search-cancel-button.html: Copied from LayoutTests/accessibility/input-auto-fill-button.html.
* accessibility/resources/shouldBeAccessibleByCursor.js: Added.
(shouldBeAccessibleByCursor): Tests whether an AccessibilityUIElement can be hit
using its screen position.
* platform/wk2/TestExpectations: Mark tests hit-test-input-{auto-fill, search-cancel}-button.html
as failing due to &lt;https://bugs.webkit.org/show_bug.cgi?id=71298&gt;.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsplatformwk2TestExpectations">trunk/LayoutTests/platform/wk2/TestExpectations</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreaccessibilityAccessibilityRenderObjectcpp">trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp</a></li>
<li><a href="#trunkSourceWebCoreaccessibilityAccessibilityRenderObjecth">trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsaccessibilityhittestinputautofillbuttonexpectedtxt">trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button-expected.txt</a></li>
<li><a href="#trunkLayoutTestsaccessibilityhittestinputautofillbuttonhtml">trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button.html</a></li>
<li><a href="#trunkLayoutTestsaccessibilityhittestinputsearchcancelbuttonexpectedtxt">trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button-expected.txt</a></li>
<li><a href="#trunkLayoutTestsaccessibilityhittestinputsearchcancelbuttonhtml">trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button.html</a></li>
<li><a href="#trunkLayoutTestsaccessibilityinputsearchcancelbuttonexpectedtxt">trunk/LayoutTests/accessibility/input-search-cancel-button-expected.txt</a></li>
<li><a href="#trunkLayoutTestsaccessibilityinputsearchcancelbuttonhtml">trunk/LayoutTests/accessibility/input-search-cancel-button.html</a></li>
<li><a href="#trunkLayoutTestsaccessibilityresourcesshouldBeAccessibleByCursorjs">trunk/LayoutTests/accessibility/resources/shouldBeAccessibleByCursor.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (185827 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2015-06-22 14:32:48 UTC (rev 185827)
+++ trunk/LayoutTests/ChangeLog        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -1,3 +1,27 @@
</span><ins>+2015-06-22  Daniel Bates  &lt;dabates@apple.com&gt;
+
+        AX: UI Automation cannot find AutoFill or search cancel buttons
+        https://bugs.webkit.org/show_bug.cgi?id=145241
+        &lt;rdar://problem/21051411&gt;
+
+        Reviewed by Chris Fleizach.
+
+        Add tests to ensure that there exists an accessibility element for the
+        search cancel button and that it can be hit using a cursor position. Also
+        add a test to ensue that the AutoFill button can be hit using a cursor position.
+
+        * accessibility/hit-test-input-auto-fill-button-expected.txt: Added.
+        * accessibility/hit-test-input-auto-fill-button.html: Copied from LayoutTests/accessibility/input-auto-fill-button.html.
+        * accessibility/hit-test-input-search-cancel-button-expected.txt: Added.
+        * accessibility/hit-test-input-search-cancel-button.html: Added.
+        * accessibility/input-search-cancel-button-expected.txt: Added.
+        * accessibility/input-search-cancel-button.html: Copied from LayoutTests/accessibility/input-auto-fill-button.html.
+        * accessibility/resources/shouldBeAccessibleByCursor.js: Added.
+        (shouldBeAccessibleByCursor): Tests whether an AccessibilityUIElement can be hit
+        using its screen position.
+        * platform/wk2/TestExpectations: Mark tests hit-test-input-{auto-fill, search-cancel}-button.html
+        as failing due to &lt;https://bugs.webkit.org/show_bug.cgi?id=71298&gt;.
+
</ins><span class="cx"> 2015-06-22  Xabier Rodriguez Calvar  &lt;calvaris@igalia.com&gt; and Youenn Fablet  &lt;youenn.fablet@crf.canon.fr&gt;
</span><span class="cx"> 
</span><span class="cx">         [Streams API] Implement ReadableStream cancel (abstract part)
</span></span></pre></div>
<a id="trunkLayoutTestsaccessibilityhittestinputautofillbuttonexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button-expected.txt (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button-expected.txt                                (rev 0)
+++ trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button-expected.txt        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,10 @@
</span><ins>+This tests that the AutoFill button is hit testable.
+
+On success, you will see a series of &quot;PASS&quot; messages, followed by &quot;TEST COMPLETE&quot;.
+
+
+PASS AutoFill button can be hit.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="trunkLayoutTestsaccessibilityhittestinputautofillbuttonhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button.html (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button.html                                (rev 0)
+++ trunk/LayoutTests/accessibility/hit-test-input-auto-fill-button.html        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,24 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;script src=&quot;../resources/js-test-pre.js&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;resources/shouldBeAccessibleByCursor.js&quot;&gt;&lt;/script&gt;
+&lt;/head&gt;
+&lt;body&gt;
+&lt;div id=&quot;description&quot;&gt;&lt;/div&gt;
+&lt;input type=&quot;password&quot; id=&quot;password&quot;&gt;
+&lt;div id=&quot;console&quot;&gt;&lt;/div&gt;
+&lt;script&gt;
+description(&quot;This tests that the AutoFill button is hit testable.&quot;);
+
+if (!window.internals || !window.accessibilityController)
+    testFailed(&quot;You must run this test in the test tool and have implemented window.internals and window.accessibilityController.&quot;);
+else {
+    internals.setShowAutoFillButton(document.getElementById(&quot;password&quot;), true);
+
+    shouldBeAccessibleByCursor(accessibilityController.accessibleElementById(&quot;password&quot;).childAtIndex(0), &quot;AutoFill button&quot;);
+}
+&lt;/script&gt;
+&lt;script src=&quot;../resources/js-test-post.js&quot;&gt;&lt;/script&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkLayoutTestsaccessibilityhittestinputsearchcancelbuttonexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button-expected.txt (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button-expected.txt                                (rev 0)
+++ trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button-expected.txt        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,10 @@
</span><ins>+This tests that the search cancel button is hit testable.
+
+On success, you will see a series of &quot;PASS&quot; messages, followed by &quot;TEST COMPLETE&quot;.
+
+
+PASS search cancel button can be hit.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="trunkLayoutTestsaccessibilityhittestinputsearchcancelbuttonhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button.html (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button.html                                (rev 0)
+++ trunk/LayoutTests/accessibility/hit-test-input-search-cancel-button.html        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,22 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;script src=&quot;../resources/js-test-pre.js&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;resources/shouldBeAccessibleByCursor.js&quot;&gt;&lt;/script&gt;
+&lt;/head&gt;
+&lt;body&gt;
+&lt;div id=&quot;description&quot;&gt;&lt;/div&gt;
+&lt;input type=&quot;search&quot; id=&quot;search&quot; value=&quot;d&quot; autofocus&gt;
+&lt;div id=&quot;console&quot;&gt;&lt;/div&gt;
+&lt;script&gt;
+description(&quot;This tests that the search cancel button is hit testable.&quot;);
+
+if (!window.internals || !window.accessibilityController)
+    testFailed(&quot;You must run this test in the test tool and have implemented window.internals and window.accessibilityController.&quot;);
+else {
+    shouldBeAccessibleByCursor(accessibilityController.accessibleElementById(&quot;search&quot;).childAtIndex(1), &quot;search cancel button&quot;);
+}
+&lt;/script&gt;
+&lt;script src=&quot;../resources/js-test-post.js&quot;&gt;&lt;/script&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkLayoutTestsaccessibilityinputsearchcancelbuttonexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/input-search-cancel-button-expected.txt (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/input-search-cancel-button-expected.txt                                (rev 0)
+++ trunk/LayoutTests/accessibility/input-search-cancel-button-expected.txt        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,11 @@
</span><ins>+This tests that there exists an accessibility element for the search cancel button.
+
+On success, you will see a series of &quot;PASS&quot; messages, followed by &quot;TEST COMPLETE&quot;.
+
+
+PASS accessibilityController.accessibleElementById(&quot;search&quot;).childAtIndex(1).description is &quot;AXDescription: cancel&quot;
+PASS accessibilityController.accessibleElementById(&quot;search&quot;).childAtIndex(1).role is &quot;AXRole: AXButton&quot;
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="trunkLayoutTestsaccessibilityinputsearchcancelbuttonhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/input-search-cancel-button.html (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/input-search-cancel-button.html                                (rev 0)
+++ trunk/LayoutTests/accessibility/input-search-cancel-button.html        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,22 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;script src=&quot;../resources/js-test-pre.js&quot;&gt;&lt;/script&gt;
+&lt;/head&gt;
+&lt;body&gt;
+&lt;div id=&quot;description&quot;&gt;&lt;/div&gt;
+&lt;input type=&quot;search&quot; id=&quot;search&quot; value=&quot;d&quot; autofocus&gt;
+&lt;div id=&quot;console&quot;&gt;&lt;/div&gt;
+&lt;script&gt;
+description(&quot;This tests that there exists an accessibility element for the search cancel button.&quot;);
+
+if (!window.internals || !window.accessibilityController)
+    testFailed(&quot;You must run this test in the test tool and have implemented window.internals and window.accessibilityController.&quot;);
+else {
+    shouldBeEqualToString('accessibilityController.accessibleElementById(&quot;search&quot;).childAtIndex(1).description', &quot;AXDescription: cancel&quot;);
+    shouldBeEqualToString('accessibilityController.accessibleElementById(&quot;search&quot;).childAtIndex(1).role', &quot;AXRole: AXButton&quot;);
+}
+&lt;/script&gt;
+&lt;script src=&quot;../resources/js-test-post.js&quot;&gt;&lt;/script&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkLayoutTestsaccessibilityresourcesshouldBeAccessibleByCursorjs"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/accessibility/resources/shouldBeAccessibleByCursor.js (0 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/resources/shouldBeAccessibleByCursor.js                                (rev 0)
+++ trunk/LayoutTests/accessibility/resources/shouldBeAccessibleByCursor.js        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -0,0 +1,14 @@
</span><ins>+function shouldBeAccessibleByCursor(accessibilityElement, displayName)
+{
+    console.assert(window.accessibilityController);
+    var x = accessibilityElement.x + accessibilityElement.width / 2;
+    var y = accessibilityElement.y + accessibilityElement.height / 2;
+    var hitElement = accessibilityController.elementAtPoint(x, y);
+    if (accessibilityElement.isEqual(hitElement))
+        testPassed(displayName + &quot; can be hit.&quot;);
+    else {
+        testFailed(&quot;should have hit &quot; + displayName + &quot; at (&quot; + x + &quot;, &quot; + y + &quot;). Hit element &quot; + hitElement + &quot;:&quot;);
+        if (hitElement)
+            debug(hitElement.allAttributes());
+    }
+}
</ins></span></pre></div>
<a id="trunkLayoutTestsplatformwk2TestExpectations"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/wk2/TestExpectations (185827 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/wk2/TestExpectations        2015-06-22 14:32:48 UTC (rev 185827)
+++ trunk/LayoutTests/platform/wk2/TestExpectations        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -46,6 +46,8 @@
</span><span class="cx"> webkit.org/b/101773 fast/repaint/body-background-image.html [ ImageOnlyFailure Pass ]
</span><span class="cx"> 
</span><span class="cx"> # AX tests that require hit testing do not work in WK2.
</span><ins>+webkit.org/b/71298 accessibility/hit-test-input-auto-fill-button.html
+webkit.org/b/71298 accessibility/hit-test-input-search-cancel-button.html
</ins><span class="cx"> webkit.org/b/71298 accessibility/loading-iframe-updates-axtree.html
</span><span class="cx"> webkit.org/b/71298 platform/mac/accessibility/html-slider-indicator.html
</span><span class="cx"> webkit.org/b/71298 platform/mac/accessibility/listbox-hit-test.html
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (185827 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2015-06-22 14:32:48 UTC (rev 185827)
+++ trunk/Source/WebCore/ChangeLog        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2015-06-22  Daniel Bates  &lt;dabates@apple.com&gt;
+
+        AX: UI Automation cannot find AutoFill or search cancel buttons
+        https://bugs.webkit.org/show_bug.cgi?id=145241
+        &lt;rdar://problem/21051411&gt;
+
+        Reviewed by Chris Fleizach.
+
+        Add support for hit testing the search cancel button and AutoFill button so that
+        they can be accessed by UI Automation.
+
+        Currently the accessibility hit test machinery ignores nodes in a shadow tree.
+        So, it neither finds the &lt;input type=&quot;search&quot;&gt; cancel button nor the AutoFill button
+        when it performs a hit test. Therefore these buttons cannot be accessed using
+        UI Automation.
+
+        Tests: accessibility/hit-test-input-auto-fill-button.html
+               accessibility/hit-test-input-search-cancel-button.html
+               accessibility/input-search-cancel-button.html
+
+        * accessibility/AccessibilityRenderObject.cpp:
+        (WebCore::AccessibilityRenderObject::accessibilityTextFieldDecorationHitTest): Added; returns
+        the AccessibilityObject for the search cancel button or AutoFill text field decoration as applicable.
+        (WebCore::AccessibilityRenderObject::accessibilityHitTest): Check whether the hit node
+        is a text field decoration.
+
</ins><span class="cx"> 2015-06-22  Xabier Rodriguez Calvar  &lt;calvaris@igalia.com&gt; and Youenn Fablet  &lt;youenn.fablet@crf.canon.fr&gt;
</span><span class="cx"> 
</span><span class="cx">         [Streams API] Implement ReadableStream cancel (abstract part)
</span></span></pre></div>
<a id="trunkSourceWebCoreaccessibilityAccessibilityRenderObjectcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp (185827 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp        2015-06-22 14:32:48 UTC (rev 185827)
+++ trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -2195,6 +2195,16 @@
</span><span class="cx">     return nullptr;
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+AccessibilityObject* AccessibilityRenderObject::accessibilityTextFieldDecorationHitTest(const HTMLInputElement&amp; inputElement, const Node&amp; decoration) const
+{
+    if (inputElement.autoFillButtonElement() == &amp;decoration || inputElement.cancelButtonElement() == &amp;decoration) {
+        AccessibilityObject* object = axObjectCache()-&gt;getOrCreate(decoration.renderer());
+        if (object &amp;&amp; !object-&gt;accessibilityIsIgnored())
+            return object;
+    }
+    return nullptr;
+}
+
</ins><span class="cx"> AccessibilityObject* AccessibilityRenderObject::remoteSVGElementHitTest(const IntPoint&amp; point) const
</span><span class="cx"> {
</span><span class="cx">     AccessibilityObject* remote = remoteSVGRootElement();
</span><span class="lines">@@ -2230,6 +2240,11 @@
</span><span class="cx">     Node* node = hitTestResult.innerNode()-&gt;deprecatedShadowAncestorNode();
</span><span class="cx">     ASSERT(node);
</span><span class="cx"> 
</span><ins>+    if (is&lt;HTMLInputElement&gt;(*node)) {
+        if (AccessibilityObject* object = accessibilityTextFieldDecorationHitTest(downcast&lt;HTMLInputElement&gt;(*node), *hitTestResult.innerNode()))
+            return object;
+    }
+
</ins><span class="cx">     if (is&lt;HTMLAreaElement&gt;(*node))
</span><span class="cx">         return accessibilityImageMapHitTest(downcast&lt;HTMLAreaElement&gt;(node), point);
</span><span class="cx">     
</span></span></pre></div>
<a id="trunkSourceWebCoreaccessibilityAccessibilityRenderObjecth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h (185827 => 185828)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h        2015-06-22 14:32:48 UTC (rev 185827)
+++ trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h        2015-06-22 16:17:04 UTC (rev 185828)
</span><span class="lines">@@ -242,6 +242,7 @@
</span><span class="cx">     void addRadioButtonGroupMembers(AccessibilityChildrenVector&amp; linkedUIElements) const;
</span><span class="cx">     AccessibilityObject* internalLinkElement() const;
</span><span class="cx">     AccessibilityObject* accessibilityImageMapHitTest(HTMLAreaElement*, const IntPoint&amp;) const;
</span><ins>+    AccessibilityObject* accessibilityTextFieldDecorationHitTest(const HTMLInputElement&amp;, const Node&amp;) const;
</ins><span class="cx">     AccessibilityObject* accessibilityParentForImageMap(HTMLMapElement*) const;
</span><span class="cx">     virtual AccessibilityObject* elementAccessibilityHitTest(const IntPoint&amp;) const override;
</span><span class="cx"> 
</span></span></pre>
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