1 2<!--- 3 4This README is automatically generated from the comments in these files: 5paper-listbox.html 6 7Edit those files, and our readme bot will duplicate them over here! 8Edit this file, and the bot will squash your changes :) 9 10The bot does some handling of markdown. Please file a bug if it does the wrong 11thing! https://github.com/PolymerLabs/tedium/issues 12 13--> 14 15[![Build status](https://travis-ci.org/PolymerElements/paper-listbox.svg?branch=master)](https://travis-ci.org/PolymerElements/paper-listbox) 16 17_[Demo and API docs](https://elements.polymer-project.org/elements/paper-listbox)_ 18 19 20##<paper-listbox> 21 22Material design: [Menus](https://www.google.com/design/spec/components/menus.html) 23 24`<paper-listbox>` implements an accessible listbox control with Material Design styling. The focused item 25is highlighted, and the selected item has bolded text. 26 27```html 28<paper-listbox> 29 <paper-item>Item 1</paper-item> 30 <paper-item>Item 2</paper-item> 31</paper-listbox> 32``` 33 34An initial selection can be specified with the `selected` attribute. 35 36```html 37<paper-listbox selected="0"> 38 <paper-item>Item 1</paper-item> 39 <paper-item>Item 2</paper-item> 40</paper-listbox> 41``` 42 43Make a multi-select listbox with the `multi` attribute. Items in a multi-select listbox can be deselected, 44and multiple item can be selected. 45 46```html 47<paper-listbox multi> 48 <paper-item>Item 1</paper-item> 49 <paper-item>Item 2</paper-item> 50</paper-listbox> 51``` 52 53### Styling 54 55The following custom properties and mixins are available for styling: 56 57| Custom property | Description | Default | 58| --- | --- | --- | 59| `--paper-listbox-background-color` | Menu background color | `--primary-background-color` | 60| `--paper-listbox-color` | Menu foreground color | `--primary-text-color` | 61| `--paper-listbox` | Mixin applied to the listbox | `{}` | 62 63### Accessibility 64 65`<paper-listbox>` has `role="listbox"` by default. A multi-select listbox will also have 66`aria-multiselectable` set. It implements key bindings to navigate through the listbox with the up and 67down arrow keys, esc to exit the listbox, and enter to activate a listbox item. Typing the first letter 68of a listbox item will also focus it. 69 70 71