mirror of https://github.com/sveltejs/svelte
91 lines
1.8 KiB
91 lines
1.8 KiB
import { appendNode, assign, createElement, createText, detachNode, insertNode, noop, proto } from "svelte/shared.js";
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function create_main_fragment(state, component) {
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var h1, text, text_1, text_2;
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return {
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create: function() {
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h1 = createElement("h1");
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text = createText("Hello ");
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text_1 = createText(state.name);
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text_2 = createText("!");
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},
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mount: function(target, anchor) {
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insertNode(h1, target, anchor);
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appendNode(text, h1);
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appendNode(text_1, h1);
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appendNode(text_2, h1);
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},
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update: function(changed, state) {
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if ( changed.name ) {
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text_1.data = state.name;
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}
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},
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unmount: function() {
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detachNode(h1);
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},
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destroy: noop
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};
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}
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class SvelteComponent extends HTMLElement {
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constructor(options = {}) {
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super();
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this.options = options;
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this._state = options.data || {};
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this._observers = {
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pre: Object.create(null),
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post: Object.create(null)
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};
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this._handlers = Object.create(null);
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this._root = options._root || this;
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this._yield = options._yield;
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this._bind = options._bind;
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this.attachShadow({ mode: 'open' });
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this._fragment = create_main_fragment(this._state, this);
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if (options.target) {
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this._fragment.create();
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this._mount(options.target, options.anchor || null);
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}
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}
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static get observedAttributes() {
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return ["name"];
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}
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get name() {
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return this.get('name');
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}
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set name(value) {
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this.set({ name: value });
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}
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attributeChangedCallback(attr, oldValue, newValue) {
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this.set({ [attr]: newValue });
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}
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}
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customElements.define("custom-element", SvelteComponent);
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assign(SvelteComponent.prototype, proto , {
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_mount(target, anchor) {
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this._fragment.mount(this.shadowRoot, null);
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target.insertBefore(this, anchor);
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},
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_unmount() {
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this.parentNode.removeChild(this);
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}
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});
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export default SvelteComponent; |