v2.0.0-alpha1 – Polymer 2.0 support

Live Demos ↗

Changes

• Polymer 2.0 support
• Manual upload triggering added (thanks to @stramel!)
  • no-auto can be set to disable the automatic uploading
  • uploadFiles() is then called to initiate uploading of the queued files
  • Live Demo ↗
• Customizing upload button added (thanks to @stramel!)
  • slot add-button can be used to replace the default button
  • Live Demo ↗

Breaking Changes

• To provide custom elements, slots are now used instead of classes
  • Available slots currently are: add-button, file-list, drop-label, drop-label-icon
• Customizing the drop label icon needs to be placed outside the drop label with its own slot

<!-- 1.x -->
<vaadin-upload>
  <div class="drop-label">
    <iron-icon icon="cloud-upload"></iron-icon>
    Drop files
  </div>
</vaadin-upload>

<!-- 2.0 -->
<vaadin-upload>
  <iron-icon slot="drop-label-icon" icon="cloud-upload"></iron-icon>
  <span slot="drop-label">Drop files</span>
</vaadin-upload>