source option added to ol.control.FullScreen including an example

examples/full-screen-source.css

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+.fullscreen:-moz-full-screen {
+  height: 100%;
+}
+.fullscreen:-webkit-full-screen {
+  height: 100%;
+}
+.fullscreen:-ms-fullscreen {
+  height: 100%;
+}
+
+.fullscreen:fullscreen {
+  height: 100%;
+}
+
+.fullscreen {
+  margin-bottom: 10px;
+  width: 100%;
+  height: 400px;
+}
+
+.ol-rotate {
+  top: 3em;
+}
+
+.map {
+  width: 80%;
+  height: 100%;
+  float: left;
+}
+
+.sidepanel {
+  background: #1F6B75;
+  width: 20%;
+  height: 100%;
+  float: left;
+}
+
+.sidepanel-title {
+  width: 100%;
+  font-size: 3em;
+  color: #ffffff;
+  display: block;
+  text-align: center;
+}

examples/full-screen-source.html

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+---
+layout: example.html
+title: Full Screen Control with extended source element
+shortdesc: Example of a full screen control with a source option definition.
+docs: >
+  <p>Click the control in the top right corner to go full screen.  Click it again to exit full screen.</p>
+  <p>If there is no button on the map, your browser does not support the <a href="http://caniuse.com/#feat=fullscreen">Full Screen API</a>.</p>
+tags: "full-screen, source, fullScreenSource, osm, osm-maps"
+---
+<div id="fullscreen" class="fullscreen">
+  <div id="map" class="map"></div>
+  <div class="sidepanel">
+    <span class="sidepanel-title">Side Panel</span>
+  </div>
+</div>
+

examples/full-screen-source.js

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+goog.require('ol.Map');
+goog.require('ol.View');
+goog.require('ol.control');
+goog.require('ol.control.FullScreen');
+goog.require('ol.layer.Tile');
+goog.require('ol.source.OSM');
+
+
+var view = new ol.View({
+  center: [-9101767, 2822912],
+  zoom: 14
+});
+
+var map = new ol.Map({
+  controls: ol.control.defaults().extend([
+    new ol.control.FullScreen({
+      source: 'fullscreen'
+    })
+  ]),
+  layers: [
+    new ol.layer.Tile({
+      source: new ol.source.OSM()
+    })
+  ],
+  renderer: common.getRendererFromQueryString(),
+  target: 'map',
+  view: view
+});