paper-dialog-behavior | Vaadin

Makes an element a Material Design dialog

Published on NPM Build status Published on


Use PaperDialogBehavior and paper-dialog-shared-styles.js to implement a Material Design dialog.

For example, if <paper-dialog-impl> implements this behavior:

  <div>Dialog body</div>
  <div class="paper-dialog-buttons">
    <paper-button dialog-dismiss>Cancel</paper-button>
    <paper-button dialog-confirm>Accept</paper-button>

paper-dialog-shared-styles.js provide styles for a header, content area, and an action area for buttons. Use the <h2> tag for the header and the paper-dialog-buttons or buttons class for the action area. You can use the paper-dialog-scrollable element (in its own repository) if you need a scrolling content area.

Use the dialog-dismiss and dialog-confirm attributes on interactive controls to close the dialog. If the user dismisses the dialog with dialog-confirm, the closingReason will update to include confirmed: true.


This element has role="dialog" by default. Depending on the context, it may be more appropriate to override this attribute with role="alertdialog".

If modal is set, the element will prevent the focus from exiting the element. It will also ensure that focus remains in the dialog.

See: Documentation, Demo.



npm install --save @polymer/paper-dialog-behavior

In a Polymer 3 element

import {PolymerElement, html} from '@polymer/polymer';
import {mixinBehaviors} from '@polymer/polymer/lib/legacy/class.js';
import {PaperDialogBehavior} from '@polymer/paper-dialog-behavior/paper-dialog-behavior.js';

class SampleElement extends mixinBehaviors(PaperDialogBehavior, PolymerElement) {
  static get template() {
    return html`
      <style include="paper-dialog-shared-styles"></style>
customElements.define('sample-element', SampleElement);


If you want to send a PR to this element, here are the instructions for running the tests and demo locally:


git clone
cd paper-dialog-behavior
npm install
npm install -g polymer-cli

Running the demo locally

polymer serve --npm

Running the tests

polymer test --npm


Link to this version
ImportedReleased 14 September 2018BSD 3-clause "New" or "Revised" License
Framework Support
Polymer 3.0+
Also supported:
Polymer 1 (1.2.9)Polymer 2 (2.2.2)
Browser Independent
Install with
npm install @polymer/paper-dialog-behavior"@3.0.1"
Run the above npm command in your project folder. If you have any issues installing, please contact the author.
Release notes - Version 3.0.1


  • @polymer/iron-overlay-behavior#^3.0.0-pre.27
  • @polymer/paper-styles#^3.0.0-pre.26
  • @polymer/polymer#^3.0.0