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93 lines
2.8 KiB
Markdown
93 lines
2.8 KiB
Markdown
---
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layout: page
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title: "Creating custom UI"
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---
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If you would like to use your own [State card](/developers/frontend_add_card/) without merging your code into [home-assistant-polymer](https://github.com/home-assistant/home-assistant-polymer/) you can create your own implementation.
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Put the element source file and its dependencies in `www/custom_ui/` directory under your Home Assistant [configuration](/docs/configuration/) directory.
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For example if creating a state card for the `light` domain named `state-card-my-custom-light` put `state-card-my-custom-light.html` in `www/custom_ui/`.
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That file should implement `<state-card-my-custom-light>` tag with Polymer.
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In `state-card-my-custom-light.html` you should use `<link rel="import">` to import all the dependencies **not** used by Home Assistant's UI.
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Do not import any dependencies used by the Home Assistant UI.
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Importing those will work in `development: 1` mode, but will fail in production mode.
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1. In the `customize:` section of the `configuration.yaml` file put `custom_ui_state_card: state-card-my-custom-light`.
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2. In the `frontend` section use `extra_html_url` to specify the URL to load.
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Example:
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`configuration.yaml`:
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```yaml
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homeassistant:
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customize:
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light.bedroom:
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custom_ui_state_card: state-card-my-custom-light
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frontend:
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extra_html_url:
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- /local/custom_ui/state-card-my-custom-light.html
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```
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`www/custom_ui/state-card-my-custom-light.html`:
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```html
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<script>
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{
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// show the version of your custom UI in the HA dev info panel (HA 0.66.0+):
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const _NAME = 'My custom light';
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const _URL = 'https://home-assistant.io/developers/frontend_creating_custom_ui/';
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const _VERSION = '20180312';
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if (!window.CUSTOM_UI_LIST) window.CUSTOM_UI_LIST = [];
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window.CUSTOM_UI_LIST.push({
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name: _NAME,
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url: _URL,
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version: _VERSION
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});
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}
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</script>
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<dom-module id='state-card-my-custom-light'>
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<template>
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<style>
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</style>
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<textarea>[[_toStr(stateObj)]]</textarea>
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</template>
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</dom-module>
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<script>
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class StateCardMyCustomLight extends Polymer.Element {
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static get is() { return 'state-card-my-custom-light'; }
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static get properties() {
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return {
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// Home Assistant object
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hass: Object,
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// inDialog is true if shown as more-info-card
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inDialog: {
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type: Boolean,
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value: false,
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},
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// includes state, config and more information of the entity
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stateObj: Object,
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};
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}
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_toStr(obj) {
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return JSON.stringify(obj, null, 2);
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}
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}
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customElements.define(StateCardMyCustomLight.is, StateCardMyCustomLight);
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</script>
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```
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<p class='note'>
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Some browsers don't support latest ECMAScript standards, these require a separate ES5 compatible file (`extra_html_url_es5`).
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</p>
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For more possibilities, see the [Custom UI section](/cookbook/#user-interface) on our Examples page.
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