132 lines
3.1 KiB
TypeScript
132 lines
3.1 KiB
TypeScript
/*
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Copyright 2025 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { html, css, nothing } from "lit";
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import { customElement, query, state } from "lit/decorators.js";
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import { Root } from "./root.js";
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import { classMap } from "lit/directives/class-map.js";
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import { styleMap } from "lit/directives/style-map.js";
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import { structuralStyles } from "./styles.js";
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import { ref } from "lit/directives/ref.js";
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@customElement("a2ui-modal")
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export class Modal extends Root {
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static styles = [
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structuralStyles,
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css`
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* {
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box-sizing: border-box;
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}
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dialog {
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padding: 0 0 0 0;
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border: none;
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background: none;
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& section {
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& #controls {
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display: flex;
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justify-content: end;
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margin-bottom: 4px;
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& button {
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padding: 0;
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background: none;
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width: 20px;
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height: 20px;
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pointer: cursor;
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border: none;
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cursor: pointer;
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}
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}
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}
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}
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`,
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];
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@state()
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accessor #showModal = false;
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@query("dialog")
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accessor #modalRef: HTMLDialogElement | null = null;
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#closeModal() {
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if (!this.#modalRef) {
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return;
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}
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if (this.#modalRef.open) {
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this.#modalRef.close();
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}
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this.#showModal = false;
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}
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render() {
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if (!this.#showModal) {
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return html`<section
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@click=${() => {
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this.#showModal = true;
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}}
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>
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<slot name="entry"></slot>
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</section>`;
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}
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return html`<dialog
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class=${classMap(this.theme.components.Modal.backdrop)}
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@click=${(evt: Event) => {
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// Only clicks on the background close the dialog.
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const [top] = evt.composedPath();
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if (!(top instanceof HTMLDialogElement)) {
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return;
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}
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this.#closeModal();
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}}
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${ref((el?: Element) => {
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const showModalIfNeeded = () => {
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const validElement = el && el instanceof HTMLDialogElement;
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if (!validElement || el.open) {
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return;
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}
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el.showModal();
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};
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requestAnimationFrame(showModalIfNeeded);
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})}
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>
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<section
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class=${classMap(this.theme.components.Modal.element)}
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style=${this.theme.additionalStyles?.Modal
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? styleMap(this.theme.additionalStyles?.Modal)
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: nothing}
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>
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<div id="controls">
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<button
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@click=${() => {
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this.#closeModal();
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}}
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>
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<span class="g-icon">close</span>
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</button>
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</div>
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<slot></slot>
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</section>
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</dialog>`;
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}
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}
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