So am working on a widget which allows the client to choose an image from their library of images and then insert it into the widget's params. Here is the block class code I am using for the image chooser and below is the widget parameter declaration in widget.xml
<parameter name="widget_image_chooser" xsi:type="block" visible="true" sort_order="20" required="true">
<label translate="true">Category</label>
<block class="Company\Module\Block\Widget\Image\Chooser">
<data>
<item name="button" xsi:type="array">
<item name="open" xsi:type="string">Select Image</item>
</item>
</data>
</block>
</parameter>
Now the problem is when the widget is inserted to a CMS Page or Block, it is inserted as a media widget instance, breaking the code because there can't be double quotes within double quotes, see below.
{{widget type="Company\Module\Block\Widget\LityVideo" identifier="https://vimeo.com/169559548" widget_image_chooser="{{media url="wysiwyg/13876414_1349854728361522_4781756811153391947_n.jpg"}}"}}
Is there a way of solving this without having to use javascript? I haven't been able to find the Model which renders the widgets in the CMS in the backend.