##<paper-dropdown-menu>
Material design: Dropdown menus
paper-dropdown-menu is similar to a native browser select element.
paper-dropdown-menu works with selectable content. The currently selected
item is displayed in the control. If no item is selected, the label is
displayed instead.
Example:
<paper-dropdown-menu label="Your favourite pastry">
<paper-listbox class="dropdown-content">
<paper-item>Croissant</paper-item>
<paper-item>Donut</paper-item>
<paper-item>Financier</paper-item>
<paper-item>Madeleine</paper-item>
</paper-listbox>
</paper-dropdown-menu>This example renders a dropdown menu with 4 options.
The child element with the class dropdown-content is used as the dropdown
menu. This can be a paper-listbox, or any other or
element that acts like an iron-selector.
Specifically, the menu child must fire an
iron-select event when one of its
children is selected, and an iron-deselect
event when a child is deselected. The selected or deselected item must
be passed as the event's detail.item property.
Applications can listen for the iron-select and iron-deselect events
to react when options are selected and deselected.
The following custom properties and mixins are also available for styling:
| Custom property | Description | Default |
|---|---|---|
--paper-dropdown-menu |
A mixin that is applied to the element host | {} |
--paper-dropdown-menu-disabled |
A mixin that is applied to the element host when disabled | {} |
--paper-dropdown-menu-ripple |
A mixin that is applied to the internal ripple | {} |
--paper-dropdown-menu-button |
A mixin that is applied to the internal menu button | {} |
--paper-dropdown-menu-input |
A mixin that is applied to the internal paper input | {} |
--paper-dropdown-menu-icon |
A mixin that is applied to the internal icon | {} |
You can also use any of the paper-input-container and paper-menu-button
style mixins and custom properties to style the internal input and menu button
respectively.