mirror of https://github.com/sveltejs/svelte
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.4 KiB
64 lines
1.4 KiB
import { appendNode, assign, createElement, createText, detachNode, init, insertNode, noop, proto } from "svelte/shared.js";
|
|
|
|
function create_main_fragment(state, component) {
|
|
var div, text;
|
|
|
|
return {
|
|
create: function() {
|
|
div = createElement("div");
|
|
text = createText("fades in");
|
|
},
|
|
|
|
mount: function(target, anchor) {
|
|
insertNode(div, target, anchor);
|
|
appendNode(text, div);
|
|
},
|
|
|
|
update: noop,
|
|
|
|
unmount: function() {
|
|
detachNode(div);
|
|
},
|
|
|
|
destroy: noop
|
|
};
|
|
}
|
|
|
|
class SvelteComponent extends HTMLElement {
|
|
constructor(options = {}) {
|
|
super();
|
|
init(this, options);
|
|
this._state = options.data || {};
|
|
|
|
this.attachShadow({ mode: 'open' });
|
|
this.shadowRoot.innerHTML = `<style>div{animation:foo 1s}@keyframes foo{0%{opacity:0}100%{opacity:1}}</style>`;
|
|
|
|
this._fragment = create_main_fragment(this._state, this);
|
|
|
|
this._fragment.create();
|
|
this._fragment.mount(this.shadowRoot, null);
|
|
|
|
if (options.target) this._mount(options.target, options.anchor || null);
|
|
}
|
|
|
|
static get observedAttributes() {
|
|
return [];
|
|
}
|
|
|
|
attributeChangedCallback(attr, oldValue, newValue) {
|
|
this.set({ [attr]: newValue });
|
|
}
|
|
}
|
|
|
|
customElements.define("custom-element", SvelteComponent);
|
|
assign(SvelteComponent.prototype, proto, {
|
|
_mount(target, anchor) {
|
|
target.insertBefore(this, anchor);
|
|
},
|
|
|
|
_unmount() {
|
|
this.parentNode.removeChild(this);
|
|
}
|
|
});
|
|
|
|
export default SvelteComponent; |