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Update custom cards, add custom badges and custom card features (#2258)
* Add custom card feature doc * Add layout options in custom card documentation * Update example * Add custom badge documentation * Update docs/frontend/custom-ui/custom-card.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-card.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-card-feature.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-card.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-badge.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-badge.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-badge.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-card-feature.md Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update docs/frontend/custom-ui/custom-card-feature.md * Apply suggestions from code review --------- Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> Co-authored-by: Bram Kragten <mail@bramkragten.nl>
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131
docs/frontend/custom-ui/custom-badge.md
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131
docs/frontend/custom-ui/custom-badge.md
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@ -0,0 +1,131 @@
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---
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title: "Custom badge"
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---
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[Badges](https://www.home-assistant.io/dashboards/badges/) are small widgets that sit at the top of a view, above all cards. We offer a built-in badge, the [entity badge](https://next.home-assistant.io/dashboards/badges/#entity-badge), but you're not just limited that one. You can build and use your own!
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## Defining your badge
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Defining a badge is done in a very similar way to defining a [custom card](/docs/frontend/custom-ui/custom-card).
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Let's create a basic badge that displays custom text at the top of the screen.
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Create a new file in your Home Assistant config dir as `<config>/www/text-badge.js` and put in the following contents:
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```js
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class TextBadge extends HTMLElement {
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// Whenever the state changes, a new `hass` object is set. Use this to
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// update your content.
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set hass(hass) {
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this._hass = hass;
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this.updateContent();
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}
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// The user supplied configuration. Throw an exception and Home Assistant
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// will render an error badge.
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setConfig(config) {
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if (!config.entity) {
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throw new Error("You need to define an entity");
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}
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this.config = config;
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this.updateContent();
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}
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updateContent() {
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if (!this.config || !this._hass) return;
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const entityId = this.config.entity;
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const state = this._hass.states[entityId];
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const stateStr = state ? state.state : "unavailable";
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this.innerHTML = `<p>${stateStr}</p>`;
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}
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}
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customElements.define("text-badge", TextBadge);
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```
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## Referencing your new badge
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In our example badge, we defined a badge with the tag `text-badge` (see last line), so our badge type will be `custom:text-badge`. And because you created the file in your `<config>/www` directory, it will be accessible in your browser via the url `/local/` (if you have recently added the www folder you will need to re-start Home Assistant for files to be picked up).
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Add a resource to your dashboard configuration with URL `/local/text-badge.js` and type `module` ([resource docs](/docs/frontend/custom-ui/registering-resources)).
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You can then use your badge in your dashboard configuration:
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```yaml
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# Example dashboard configuration
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views:
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- name: Example
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badges:
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- type: "custom:text-badge"
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entity: light.bedside_lamp
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```
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## API
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Custom badges are defined as a [custom element](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements). It's up to you to decide how to render your DOM inside your element. You can use Polymer, Angular, Preact or any other popular framework (except for React – [more info on React here](https://custom-elements-everywhere.com/#react)).
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Home Assistant will call `setConfig(config)` when the configuration changes (rare). If you throw an exception if the configuration is invalid, Home Assistant will render an error badge to notify the user.
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Home Assistant will set [the `hass` property](/docs/frontend/data/) when the state of Home Assistant changes (frequent). Whenever the state changes, the component will have to update itself to represent the latest state.
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## Graphical badge configuration
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Your badge can define a `getConfigElement` method that returns a custom element for editing the user configuration. Home Assistant will display this element in the badge editor in the dashboard.
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Your badge can also define a `getStubConfig` method that returns a default badge configuration (without the `type:` parameter) in json form for use by the badge type picker in the dashboard.
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Home Assistant will call the `setConfig` method of the config element on setup.
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Home Assistant will update the `hass` property of the config element on state changes, and the `lovelace` element, which contains information about the dashboard configuration.
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Changes to the configuration are communicated back to the dashboard by dispatching a `config-changed` event with the new configuration in its detail.
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To have your badge displayed in the badge picker dialog in the dashboard, add an object describing it to the array `window.customBadges`. Required properties of the object are `type` and `name` (see example below).
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```js
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import "./text-badge-editor.js";
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class TextBadge extends HTMLElement {
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...
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static getConfigElement() {
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return document.createElement("text-badge-editor");
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}
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static getStubConfig() {
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return { entity: "sun.sun" };
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}
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}
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customElements.define("text-badge", TextBadge);
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```
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```js
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class TextBadgeEditor extends HTMLElement {
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setConfig(config) {
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this._config = config;
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}
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configChanged(newConfig) {
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const event = new Event("config-changed", {
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bubbles: true,
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composed: true,
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});
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event.detail = { config: newConfig };
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this.dispatchEvent(event);
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}
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}
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customElements.define("text-badge-editor", TextBadgeEditor);
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window.customBadges = window.customBadges || [];
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window.customBadges.push({
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type: "text-badge",
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name: "Text badge",
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preview: false, // Optional - defaults to false
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description: "A custom badge made by me!", // Optional
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documentationURL:
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"https://developers.home-assistant.io/docs/frontend/custom-ui/custom-badge", // Adds a help link in the frontend badge editor
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});
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```
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116
docs/frontend/custom-ui/custom-card-feature.md
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116
docs/frontend/custom-ui/custom-card-feature.md
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---
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title: "Custom card feature"
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---
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Some dashboard cards have support for [features](https://www.home-assistant.io/dashboards/features/). These widgets add quick controls to the card. We offer a lot of built-in features, but you're not just limited to the ones that we decided to include in Home Assistant. You can build and use your own in the same way as defining [custom cards](/docs/frontend/custom-ui/custom-card).
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## Defining your card feature
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Below is an example of a custom card feature for [button entity](/docs/core/entity/button/).
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```js
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import {
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LitElement,
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html,
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css,
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} from "https://unpkg.com/lit-element@2.0.1/lit-element.js?module";
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const supportsButtonPressCardFeature = (stateObj) => {
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const domain = stateObj.entity_id.split(".")[0];
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return domain === "button";
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};
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class ButtonPressCardFeature extends LitElement {
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static get properties() {
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return {
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hass: undefined,
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config: undefined,
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stateObj: undefined,
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};
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}
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static getStubConfig() {
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return {
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type: "custom:button-press-card-feature",
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label: "Press",
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};
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}
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setConfig(config) {
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if (!config) {
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throw new Error("Invalid configuration");
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}
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this.config = config;
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}
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_press(ev) {
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ev.stopPropagation();
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this.hass.callService("button", "press", {
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entity_id: this.stateObj.entity_id,
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});
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}
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render() {
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if (
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!this.config ||
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!this.hass ||
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!this.stateObj ||
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!supportsButtonPressCardFeature(this.stateObj)
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) {
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return null;
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}
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return html`
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<button class="button" @click=${this._press}>
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${this.config.label || "Press"}
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</button>
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`;
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}
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static get styles() {
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return css`
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.button {
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display: block;
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height: var(--feature-height, 42px);
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width: 100%;
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border-radius: var(--feature-border-radius, 12px);
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border: none;
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background-color: #eeeeee;
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cursor: pointer;
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transition: background-color 180ms ease-in-out;
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}
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.button:hover {
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background-color: #dddddd;
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}
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.button:focus {
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background-color: #cdcdcd;
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}
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`;
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}
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}
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customElements.define("button-press-card-feature", ButtonPressCardFeature);
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window.customCardFeatures = window.customCardFeatures || [];
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window.customCardFeatures.push({
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type: "button-press-card-feature",
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name: "Button press",
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supported: supportsButtonPressCardFeature, // Optional
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configurable: true, // Optional - defaults to false
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});
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```
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If you want your feature to better integrate with the default design of home assistant, you can use these CSS variables:
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- `--feature-height`: Recommended height (42px).
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- `--feature-border-radius`: Recommended border radius (12px). It be can useful to set button or slider border radius.
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- `--feature-button-spacing`: Recommended space between buttons (12px). It can be useful if you have multiple buttons in your feature.
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The main difference with custom cards is the graphical configuration option.
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To have it displayed in the card editor, you must add an object describing it to the array `window.customCardFeatures`.
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Required properties of the object are `type` and `name`. It is recommended to define the `supported` option with a function, so the editor can only propose the feature if it is compatible with the selected entity in the card. Set `configurable` to `true` if your entity has additional configuration (e.g. `label` option in the example above) so the editor.
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Also, the static functions `getConfigElement` and `getStubConfig` work the same as with normal custom cards.
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@ -1,5 +1,5 @@
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---
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title: "Custom cards"
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title: "Custom card"
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---
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[Dashboards](https://www.home-assistant.io/dashboards/) are our approach to defining your user interface for Home Assistant. We offer a lot of built-in cards, but you're not just limited to the ones that we decided to include in Home Assistant. You can build and use your own!
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@ -46,10 +46,20 @@ class ContentCardExample extends HTMLElement {
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}
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// The height of your card. Home Assistant uses this to automatically
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// distribute all cards over the available columns.
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// distribute all cards over the available columns in masonry view
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getCardSize() {
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return 3;
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}
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// The rules for your card for sizing your card if the grid in section view
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getLayoutOptions() {
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return {
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grid_rows: 3,
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grid_columns: 2,
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grid_min_rows: 3,
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grid_max_rows: 3,
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};
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}
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}
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customElements.define("content-card-example", ContentCardExample);
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@ -76,11 +86,15 @@ views:
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Custom cards are defined as a [custom element](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements). It's up to you to decide how to render your DOM inside your element. You can use Polymer, Angular, Preact or any other popular framework (except for React – [more info on React here](https://custom-elements-everywhere.com/#react)).
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### Configuration
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Home Assistant will call `setConfig(config)` when the configuration changes (rare). If you throw an exception if the configuration is invalid, Home Assistant will render an error card to notify the user.
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Home Assistant will set [the `hass` property](/docs/frontend/data/) when the state of Home Assistant changes (frequent). Whenever the state changes, the component will have to update itself to represent the latest state.
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Your card can define a `getCardSize` method that returns the size of your card as a number or a promise that will resolve to a number. A height of 1 is equivalent to 50 pixels. This will help Home Assistant distribute the cards evenly over the columns. A card size of `1` will be assumed if the method is not defined.
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### Sizing in masonry view
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Your card can define a `getCardSize` method that returns the size of your card as a number or a promise that will resolve to a number. A height of 1 is equivalent to 50 pixels. This will help Home Assistant distribute the cards evenly over the columns in the [masonry view](https://www.home-assistant.io/dashboards/masonry/). A card size of `1` will be assumed if the method is not defined.
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Since some elements can be lazy loaded, if you want to get the card size of another element, you should first check it is defined.
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@ -90,7 +104,39 @@ return customElements
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.then(() => element.getCardSize());
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```
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Your card can define a `getConfigElement` method that returns a custom element for editing the user configuration. Home Assistant will display this element in the card editor in the dashboard.
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### Sizing in sections view
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You card can define a `getLayoutOptions` method that returns the min, max and default number of cells your card will take in the grid if your card is used if the [sections view](https://www.home-assistant.io/dashboards/masonry/)
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If you don't define this method, the card will take 4 columns (full width) and will ignore the rows of the grid.
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A cell of the grid is defined with the following dimension:
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- width: between `80px` and `120px` depending on the screen size
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- height: `56px`
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- gap between cells: `8px`
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The different layout options are:
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- `grid_rows`: Default number of rows the card takes
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- `grid_min_rows`: Minimal number of rows the card takes
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- `grid_max_rows`: Maximal number of rows the card takes
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- `grid_columns`: Default number of columns the card takes
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- `grid_min_columns`: Minimal number of columns the card takes
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- `grid_max_columns`: Maximal number of columns the card takes
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Example of implementation:
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```js
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public getLayoutOptions() {
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return {
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grid_rows: 2,
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grid_columns: 2,
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grid_min_rows: 2,
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};
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}
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```
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In this example, the card will take 2 x 2 cells by default. The height of the card cannot be smaller than 2 rows. According to the cell dimension, the card will have a height of `120px` (`2` * `56px` + `8px`).
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## Advanced example
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@ -267,121 +313,7 @@ window.customCards.push({
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name: "Content Card",
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preview: false, // Optional - defaults to false
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description: "A custom card made by me!", // Optional
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documentationURL: "https://developers.home-assistant.io/docs/frontend/custom-ui/custom-card/", // Adds a help link in the frontend card editor
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documentationURL:
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"https://developers.home-assistant.io/docs/frontend/custom-ui/custom-card", // Adds a help link in the frontend card editor
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});
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```
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## Tile features
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The tile card has support for "features" to add quick actions to control the entity. We offer some built-in features, but you can build and use your own using similar way than defining custom cards.
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Below is an example of a custom tile feature for [button entity](/docs/core/entity/button/).
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```js
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import {
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LitElement,
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html,
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css,
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} from "https://unpkg.com/lit-element@2.0.1/lit-element.js?module";
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const supportsButtonPressTileFeature = (stateObj) => {
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const domain = stateObj.entity_id.split(".")[0];
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return domain === "button";
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};
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class ButtonPressTileFeature extends LitElement {
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static get properties() {
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return {
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hass: undefined,
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config: undefined,
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stateObj: undefined,
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};
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}
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static getStubConfig() {
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return {
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type: "custom:button-press-tile-feature",
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label: "Press",
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};
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}
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setConfig(config) {
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if (!config) {
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throw new Error("Invalid configuration");
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}
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this.config = config;
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}
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_press(ev) {
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ev.stopPropagation();
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this.hass.callService("button", "press", {
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entity_id: this.stateObj.entity_id,
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});
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}
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render() {
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if (
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!this.config ||
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!this.hass ||
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!this.stateObj ||
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!supportsButtonPressTileFeature(this.stateObj)
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) {
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return null;
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}
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return html`
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<div class="container">
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<button class="button" @click=${this._press}>
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${this.config.label || "Press"}
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</button>
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</div>
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`;
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}
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static get styles() {
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return css`
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.container {
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display: flex;
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flex-direction: row;
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padding: 0 12px 12px 12px;
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width: auto;
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}
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.button {
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display: block;
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width: 100%;
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height: 40px;
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border-radius: 6px;
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border: none;
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background-color: #eeeeee;
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cursor: pointer;
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transition: background-color 180ms ease-in-out;
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}
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.button:hover {
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background-color: #dddddd;
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}
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.button:focus {
|
||||
background-color: #cdcdcd;
|
||||
}
|
||||
`;
|
||||
}
|
||||
}
|
||||
|
||||
customElements.define("button-press-tile-feature", ButtonPressTileFeature);
|
||||
|
||||
window.customTileFeatures = window.customTileFeatures || [];
|
||||
window.customTileFeatures.push({
|
||||
type: "button-press-tile-feature",
|
||||
name: "Button press",
|
||||
supported: supportsButtonPressTileFeature, // Optional
|
||||
configurable: true, // Optional - defaults to false
|
||||
});
|
||||
```
|
||||
|
||||
The only difference with custom cards is the graphical configuration option.
|
||||
To have it displayed in the tile card editor, you must add an object describing it to the array `window.customTileFeatures`.
|
||||
|
||||
Required properties of the object are `type` and `name`. It is recommended to define the `supported` option with a function so the editor can only propose the feature if it is compatible with the selected entity in the tile card. Set `configurable` to `true` if your entity has additional configuration (e.g. `label` option in the example above) so the editor.
|
||||
|
||||
Also, the static functions `getConfigElement` and `getStubConfig` work the same as with normal custom maps.
|
||||
|
||||
@ -40,6 +40,8 @@ module.exports = {
|
||||
label: "Custom UI",
|
||||
items: [
|
||||
"frontend/custom-ui/custom-card",
|
||||
"frontend/custom-ui/custom-card-feature",
|
||||
"frontend/custom-ui/custom-badge",
|
||||
"frontend/custom-ui/custom-strategy",
|
||||
"frontend/custom-ui/custom-view",
|
||||
"frontend/custom-ui/creating-custom-panels",
|
||||
@ -287,7 +289,7 @@ module.exports = {
|
||||
"asyncio_categorizing_functions",
|
||||
"asyncio_working_with_async",
|
||||
"asyncio_thread_safety",
|
||||
"asyncio_blocking_operations"
|
||||
"asyncio_blocking_operations",
|
||||
],
|
||||
},
|
||||
],
|
||||
|
||||
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Reference in New Issue
Block a user