Demo and API docs

##Polymer.PaperDialogBehavior

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

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

<paper-dialog-impl>
    <h2>Header</h2>
    <div>Dialog body</div>
    <div class="buttons">
        <paper-button dialog-dismiss>Cancel</paper-button>
        <paper-button dialog-confirm>Accept</paper-button>
    </div>
</paper-dialog-impl>

paper-dialog-shared-styles.html provide styles for a header, content area, and an action area for buttons. Use the <h2> tag for the header and the 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.

Styling

The following custom properties and mixins are available for styling.

Custom property	Description	Default
--paper-dialog-background-color	Dialog background color	--primary-background-color
--paper-dialog-color	Dialog foreground color	--primary-text-color
--paper-dialog	Mixin applied to the dialog	{}
--paper-dialog-title	Mixin applied to the title (<h2>) element	{}
--paper-dialog-button-color	Button area foreground color	--default-primary-color

Accessibility

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 set aria-modal and prevent the focus from exiting the element. It will also ensure that focus remains in the dialog.

The aria-labelledby attribute will be set to the header element, if one exists.