| 1 | const ICON_TAG = "x-icon"; |
| 2 | const ICON_NAME_PATTERN = /^[a-z0-9][a-z0-9_]*$/; |
| 3 | |
| 4 | export const ICON_SELECTOR = `${ICON_TAG}, .material-symbols-outlined, .material-icons-outlined`; |
| 5 | |
| 6 | export function normalizeIconName(value) { |
| 7 | const name = String(value ?? "").trim(); |
| 8 | return ICON_NAME_PATTERN.test(name) ? name : ""; |
| 9 | } |
| 10 | |
| 11 | export function getIconName(element) { |
| 12 | if (!element) return ""; |
| 13 | if (element.localName === ICON_TAG) { |
| 14 | return normalizeIconName(element.getAttribute("name")); |
| 15 | } |
| 16 | return normalizeIconName(element.textContent); |
| 17 | } |
| 18 | |
| 19 | export function setIconName(element, value) { |
| 20 | if (!element) return; |
| 21 | const name = normalizeIconName(value); |
| 22 | if (element.localName === ICON_TAG) { |
| 23 | if (name) element.setAttribute("name", name); |
| 24 | else element.removeAttribute("name"); |
| 25 | return; |
| 26 | } |
| 27 | element.textContent = name; |
| 28 | } |
| 29 | |
| 30 | if (!customElements.get(ICON_TAG)) { |
| 31 | customElements.define( |
| 32 | ICON_TAG, |
| 33 | class extends HTMLElement { |
| 34 | static get observedAttributes() { |
| 35 | return ["name"]; |
| 36 | } |
| 37 | |
| 38 | get name() { |
| 39 | return normalizeIconName(this.getAttribute("name")); |
| 40 | } |
| 41 | |
| 42 | set name(value) { |
| 43 | setIconName(this, value); |
| 44 | } |
| 45 | |
| 46 | connectedCallback() { |
| 47 | // Preserve selectors used by older third-party plugin styles while |
| 48 | // first-party markup uses the semantic custom element. |
| 49 | this.classList.add("material-symbols-outlined"); |
| 50 | if ( |
| 51 | !this.hasAttribute("aria-hidden") && |
| 52 | !this.hasAttribute("aria-label") && |
| 53 | !this.hasAttribute("aria-labelledby") |
| 54 | ) { |
| 55 | this.setAttribute("aria-hidden", "true"); |
| 56 | } |
| 57 | this.render(); |
| 58 | } |
| 59 | |
| 60 | attributeChangedCallback() { |
| 61 | this.render(); |
| 62 | } |
| 63 | |
| 64 | render() { |
| 65 | const name = this.name; |
| 66 | if (this.textContent !== name) this.textContent = name; |
| 67 | } |
| 68 | }, |
| 69 | ); |
| 70 | } |