file_upload.pt
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<tal:block tal:define="oid oid|field.oid;
css_class css_class|field.widget.css_class;
style style|field.widget.style;
preview_url cstruct.get('preview_url')|'';
ext str(cstruct.get('filename').split('.')[-1:][0]).lower()|[];
fname str(cstruct.get('filename'))|'';
delete cstruct.get('delete')|'';
maxsize field.widget.size|5242880;
img ['jpg', 'jpeg', 'gif', 'png', 'svg', 'eps', 'psd'];
video ['avi', 'mov', 'mpv']
">
${field.start_mapping()}
<img tal:condition="ext in img" id="preview-${oid}" alt="" src="${preview_url}"
style="${style}"
onload="window.URL.revokeObjectURL(this.src);"></img>
<video tal:condition="ext in video" style="${style}" controls
src="${preview_url}" type="video/${ext}">
Your browser does not support the video tag.
</video>
<video tal:condition="ext=='mp4'"
controls
style="${style}"
src="${preview_url}"
type="video/mp4">
Your browser does not support the video tag.
</video>
<embed tal:condition="ext=='pdf'" src="${preview_url}" style="${style}">
<a id="label-${oid}" tal:condition="preview_url" class="label label-default" href="${preview_url}"
target="_blank"><i class="fa fa-search"></i> View</a>
<input type="file" name="upload" id="${oid}"
tal:attributes="style style;
accept accept|field.widget.accept;
data-filename fname;
attributes|field.widget.attributes|{};"/>
<input tal:define="uid cstruct.get('uid')"
tal:condition="uid"
type="hidden" name="uid" value="${uid}"/>
${field.end_mapping()}
<script type="text/javascript">
deform.addCallback('${oid}', function (oid) {
$('#' + oid).upload();
});
document.getElementById("${oid}").onchange = function () {
if (this.files[0].size > ${maxsize}) {
alert("File is too big!");
this.value = "";
document.getElementById('preview-' + this.id).src = '';
}
document.getElementById('preview-' + this.id).src = window.URL.createObjectURL(this.files[0]);
document.getElementById('labeldelete-' + this.id).remove();
document.getElementById('label-' + this.id).remove();
};
</script>
</tal:block>