https://github.com/polymerelements/iron-dropdown
An unstyled element that works similarly to a native browser select
https://github.com/polymerelements/iron-dropdown
Last synced: about 1 year ago
JSON representation
An unstyled element that works similarly to a native browser select
- Host: GitHub
- URL: https://github.com/polymerelements/iron-dropdown
- Owner: PolymerElements
- Created: 2015-05-26T22:19:20.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2023-10-16T14:02:52.000Z (over 2 years ago)
- Last Synced: 2024-05-09T10:09:27.069Z (about 2 years ago)
- Language: HTML
- Homepage: https://www.webcomponents.org/element/PolymerElements/iron-dropdown
- Size: 501 KB
- Stars: 34
- Watchers: 20
- Forks: 50
- Open Issues: 18
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
[](https://www.npmjs.com/package/@polymer/iron-dropdown)
[](https://travis-ci.org/PolymerElements/iron-dropdown)
[](https://webcomponents.org/element/@polymer/iron-dropdown)
## <iron-dropdown>
`` displays content inside a fixed-position container,
positioned relative to another element.
See: [Documentation](https://www.webcomponents.org/element/@polymer/iron-dropdown),
[Demo](https://www.webcomponents.org/element/@polymer/iron-dropdown/demo/demo/index.html).
## Usage
### Installation
```
npm install --save @polymer/iron-dropdown
```
### In an HTML file
```html
import '@polymer/iron-dropdown/iron-dropdown.js';
#container {
display: inline-block;
}
iron-dropdown {
border: 1px solid gray;
background: white;
font-size: 2em;
}
open the iron-dropdown
Hello!
```
### In a Polymer 3 element
```js
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-dropdown/iron-dropdown.js';
class SampleElement extends PolymerElement {
static get template() {
return html`
:host {
display: inline-block;
}
iron-dropdown {
border: 1px solid gray;
background: white;
font-size: 2em;
}
open the dropdown
Hello!
`;
}
_openDropdown() {
this.$.dropdown.open();
}
}
customElements.define('sample-element', SampleElement);
```
In the above example, the `
` assigned to the `dropdown-content` slot will
be hidden until the dropdown element has `opened` set to true, or when the
`open` method is called on the element.
## Contributing
If you want to send a PR to this element, here are the instructions for running
the tests and demo locally:
### Installation
```sh
git clone https://github.com/PolymerElements/iron-dropdown
cd iron-dropdown
npm install
npm install -g polymer-cli
```
### Running the demo locally
```sh
polymer serve --npm
open http://127.0.0.1:/demo/
```
### Running the tests
```sh
polymer test --npm
```