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Define Window's opener when there's no browsing context #4379

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Mar 4, 2019
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Define Window's opener when there's no browsing context #4379

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Define Window's opener when there's no browsing context
annevk Feb 19, 2019
21306f8
deal with null the way Firefox deals with it (other browsers cannot r…
annevk Feb 19, 2019
f0c6b47
oops
annevk Feb 22, 2019
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27 changes: 16 additions & 11 deletions source
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Original file line number Diff line number Diff line change
Expand Up @@ -77505,25 +77505,30 @@ dictionary <dfn>DragEventInit</dfn> : <span>MouseEventInit</span> {
steps:</p>

<ol>
<li><p>If the current <span>browsing context</span>'s <span>disowned</span> is true, then return
null.</p></li>
<li><p>Let <var>current</var> be this <code>Window</code> object's <span data-x="window
bc">browsing context</span>.</p></li>

<li><p>If <var>current</var> is null, then return null.</p></li>

<li><p>If the current <span>browsing context</span>'s <span>opener browsing context</span> is
null, then return null.</p></li>
<li><p>If <var>current</var>'s <span>disowned</span> is true, then return null.</p></li>

<li><p>If <var>current</var>'s <span>opener browsing context</span> is null, then return
null.</p></li>

<li><p>Return the current <span>browsing context</span>'s <span>opener browsing context</span>'s
<li><p>Return <var>current</var>'s <span>opener browsing context</span>'s
<code>WindowProxy</code> object.</p></li>
</ol>

<p>The <code data-x="dom-opener">opener</code> attribute's setter, must run these steps:</p>
<p>The <code data-x="dom-opener">opener</code> attribute's setter must run these steps:</p>
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<ol>
<li><p>If the given value is null, then set the current <span>browsing context</span>'s
<span>disowned</span> to true and return.</p></li>
<li><p>If the given value is null and this <code>Window</code> object's <span data-x="window
bc">browsing context</span> is non-null, then set this <code>Window</code> object's <span
data-x="window bc">browsing context</span>'s <span>disowned</span> to true.</p></li>

<li><p>Return ? <span>OrdinaryDefineOwnProperty</span>(this <code>Window</code> object, "<code
data-x="">opener</code>", { [[Value]]: the given value, [[Writable]]: true, [[Enumerable]]: true,
[[Configurable]]: true }).</p></li>
<li><p>If the given value is non-null, then return ? <span>OrdinaryDefineOwnProperty</span>(this
<code>Window</code> object, "<code data-x="">opener</code>", { [[Value]]: the given value,
[[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }).</p></li>
</ol>

<div class="note">
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