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Define DisplayMediaStreamConstraints dictionary with video = true #92

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Nov 29, 2018
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Define DisplayMediaStreamConstraints dictionary with video = true #92

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Define DisplayMediaStreamConstraints dictionary with video = true
jan-ivar Nov 29, 2018
ead813b
De-capitalize Track.
jan-ivar Nov 29, 2018
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56 changes: 50 additions & 6 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -171,7 +171,7 @@ <h2>
<dfn>MediaDevices</dfn> Additions
</h2>
<pre class="idl">partial interface MediaDevices {
Promise&lt;MediaStream&gt; getDisplayMedia (optional MediaStreamConstraints constraints);
Promise&lt;MediaStream&gt; getDisplayMedia (optional DisplayMediaStreamConstraints constraints);
};</pre>
<dl data-link-for="MediaDevices" data-dfn-for="MediaDevices" class="methods">
<dt>
Expand Down Expand Up @@ -201,6 +201,12 @@ <h2>
<p>Let <var>constraints</var> be the method's first
argument.</p>
</li>
<li>
<p>If <code>constraints.video</code> is <code>false</code>,
return a promise <a>rejected</a> with a newly
<a data-link-for="exception" data-lt="create">created</a>
<code>TypeError</code>.</p>
</li>
<li>
<p>For each member
<a href="https://heycam.github.io/webidl/#dfn-present">present</a>
Expand Down Expand Up @@ -228,11 +234,6 @@ <h2>
types in <var>constraints</var> with either a dictionary
value or a value of <code>true</code>.</p>
</li>
<li>
<p>If <var>requestedMediaTypes</var> is the empty set, set
<var>requestedMediaTypes</var> to a set containing
<code>"video"</code>.</p>
</li>
<li>
<p>If the <a>current settings object</a>'s <a>responsible
document</a> is NOT <a data-cite=
Expand Down Expand Up @@ -581,6 +582,49 @@ <h2>
it is being captured.</p>
</div>
</section>
<section>
<h2>DisplayMediaStreamConstraints</h2>
<p>The <dfn>DisplayMediaStreamConstraints</dfn> dictionary is used to
instruct the User Agent what sort of <a>MediaStreamTrack</a>s may be
included in the <a>MediaStream</a> returned by
<code>getDisplayMedia</code>.</p>
<div>
<pre class="idl">dictionary DisplayMediaStreamConstraints {
(boolean or MediaTrackConstraints) video = true;
(boolean or MediaTrackConstraints) audio = false;
};</pre>
<section>
<h2>Dictionary <a class="idlType">DisplayMediaStreamConstraints</a>
Members</h2>
<dl data-link-for="DisplayMediaStreamConstraints" data-dfn-for=
"DisplayMediaStreamConstraints" class="dictionary-members">
<dt><dfn><code>video</code></dfn> of type <span class=
"idlMemberType"><a>(boolean or MediaTrackConstraints)</a></span>,
defaulting to <code>true</code></dt>
<dd>
<p>If <code>true</code>, it requests that the returned
<a>MediaStream</a> contain a video track. If a <a>Constraints</a>
structure is provided, it further specifies desired processing
options to be applied to the video track rendition of the
display surface chosen by the user. If <code>false</code>, the
request MUST be rejected with a <code>TypeError</code>.</p>
</dd>
<dt><dfn><code>audio</code></dfn> of type <span class=
"idlMemberType"><a>(boolean or MediaTrackConstraints)</a></span>,
defaulting to <code>false</code></dt>
<dd>
<p>If <code>true</code>, it signals an interest that the
returned <a>MediaStream</a> contain an audio track, if
supported and audio is available for display surface chosen by
the user. If a <a>Constraints</a> structure is provided, it
further specifies desired processing options to be applied to
the audio track. If <code>false</code>, the <a>MediaStream</a>
MUST NOT contain an audio track.</p>
</dd>
</dl>
</section>
</div>
</section>
<section>
<h2>
Extensions to <a class="idlType">MediaTrackSupportedConstraints</a>
Expand Down