211 lines
5.1 KiB
TypeScript
211 lines
5.1 KiB
TypeScript
import {
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CSSResultGroup,
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LitElement,
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PropertyValues,
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css,
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html,
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nothing,
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} from "lit";
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import { customElement, property, state } from "lit/decorators";
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import { fireEvent } from "../common/dom/fire_event";
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import { debounce } from "../common/util/debounce";
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import { CustomIcon, customIcons } from "../data/custom_icons";
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import {
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Chunks,
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Icons,
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MDI_PREFIXES,
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checkCacheVersion,
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findIconChunk,
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getIcon,
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writeCache,
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} from "../data/iconsets";
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import "./ha-svg-icon";
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interface DeprecatedIcon {
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[key: string]: {
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removeIn: string;
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newName?: string;
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};
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}
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const mdiDeprecatedIcons: DeprecatedIcon = {};
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const chunks: Chunks = {};
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// Supervisor doesn't use icons, and should not update/downgrade the icon DB.
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if (!__SUPERVISOR__) {
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checkCacheVersion();
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}
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const debouncedWriteCache = debounce(() => writeCache(chunks), 2000);
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const cachedIcons: Record<string, string> = {};
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@customElement("ha-icon")
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export class HaIcon extends LitElement {
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@property() public icon?: string;
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@state() private _path?: string;
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@state() private _secondaryPath?: string;
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@state() private _viewBox?: string;
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@state() private _legacy = false;
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public willUpdate(changedProps: PropertyValues) {
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super.willUpdate(changedProps);
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if (changedProps.has("icon")) {
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this._path = undefined;
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this._secondaryPath = undefined;
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this._viewBox = undefined;
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this._loadIcon();
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}
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}
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protected render() {
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if (!this.icon) {
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return nothing;
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}
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if (this._legacy) {
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return html`<!-- @ts-ignore we don't provice the iron-icon element -->
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<iron-icon .icon=${this.icon}></iron-icon>`;
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}
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return html`<ha-svg-icon
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.path=${this._path}
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.secondaryPath=${this._secondaryPath}
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.viewBox=${this._viewBox}
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></ha-svg-icon>`;
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}
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private async _loadIcon() {
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if (!this.icon) {
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return;
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}
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const requestedIcon = this.icon;
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const [iconPrefix, origIconName] = this.icon.split(":", 2);
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let iconName = origIconName;
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if (!iconPrefix || !iconName) {
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return;
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}
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if (!MDI_PREFIXES.includes(iconPrefix)) {
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const customIcon = customIcons[iconPrefix];
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if (customIcon) {
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if (customIcon && typeof customIcon.getIcon === "function") {
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this._setCustomPath(customIcon.getIcon(iconName), requestedIcon);
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}
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return;
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}
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this._legacy = true;
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return;
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}
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this._legacy = false;
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if (iconName in mdiDeprecatedIcons) {
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const deprecatedIcon = mdiDeprecatedIcons[iconName];
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let message: string;
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if (deprecatedIcon.newName) {
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message = `Icon ${iconPrefix}:${iconName} was renamed to ${iconPrefix}:${deprecatedIcon.newName}, please change your config, it will be removed in version ${deprecatedIcon.removeIn}.`;
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iconName = deprecatedIcon.newName!;
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} else {
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message = `Icon ${iconPrefix}:${iconName} was removed from MDI, please replace this icon with an other icon in your config, it will be removed in version ${deprecatedIcon.removeIn}.`;
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}
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// eslint-disable-next-line no-console
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console.warn(message);
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fireEvent(this, "write_log", {
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level: "warning",
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message,
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});
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}
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if (iconName in cachedIcons) {
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this._path = cachedIcons[iconName];
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return;
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}
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if (iconName === "home-assistant") {
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const icon = (await import("../resources/home-assistant-logo-svg"))
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.mdiHomeAssistant;
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if (this.icon === requestedIcon) {
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this._path = icon;
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}
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cachedIcons[iconName] = icon;
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return;
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}
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let databaseIcon: string | undefined;
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try {
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databaseIcon = await getIcon(iconName);
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} catch (_err) {
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// Firefox in private mode doesn't support IDB
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// iOS Safari sometimes doesn't open the DB
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databaseIcon = undefined;
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}
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if (databaseIcon) {
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if (this.icon === requestedIcon) {
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this._path = databaseIcon;
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}
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cachedIcons[iconName] = databaseIcon;
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return;
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}
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const chunk = findIconChunk(iconName);
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if (chunk in chunks) {
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this._setPath(chunks[chunk], iconName, requestedIcon);
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return;
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}
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const iconPromise = fetch(`/static/mdi/${chunk}.json`).then((response) =>
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response.json()
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);
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chunks[chunk] = iconPromise;
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this._setPath(iconPromise, iconName, requestedIcon);
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debouncedWriteCache();
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}
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private async _setCustomPath(
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promise: Promise<CustomIcon>,
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requestedIcon: string
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) {
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const icon = await promise;
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if (this.icon !== requestedIcon) {
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return;
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}
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this._path = icon.path;
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this._secondaryPath = icon.secondaryPath;
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this._viewBox = icon.viewBox;
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}
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private async _setPath(
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promise: Promise<Icons>,
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iconName: string,
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requestedIcon: string
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) {
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const iconPack = await promise;
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if (this.icon === requestedIcon) {
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this._path = iconPack[iconName];
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}
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cachedIcons[iconName] = iconPack[iconName];
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}
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static get styles(): CSSResultGroup {
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return css`
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:host {
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fill: currentcolor;
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}
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`;
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}
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}
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declare global {
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interface HTMLElementTagNameMap {
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"ha-icon": HaIcon;
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}
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}
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