133 lines
3.6 KiB
TypeScript
133 lines
3.6 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, PropertyValues, nothing } from "lit";
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import { customElement, property } from "lit/decorators.js";
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import { Root } from "./root.js";
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import { repeat } from "lit/directives/repeat.js";
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import { StringValue } from "../types/primitives.js";
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import { A2uiMessageProcessor } from "../data/model-processor.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 { Styles } from "../index.js";
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@customElement("a2ui-tabs")
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export class Tabs extends Root {
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@property()
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accessor titles: StringValue[] | null = null;
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@property()
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accessor selected = 0;
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static styles = [
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structuralStyles,
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css`
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:host {
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display: block;
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flex: var(--weight);
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}
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`,
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];
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protected willUpdate(changedProperties: PropertyValues<this>): void {
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super.willUpdate(changedProperties);
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if (changedProperties.has("selected")) {
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for (const child of this.children) {
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child.removeAttribute("slot");
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}
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const selectedChild = this.children[this.selected];
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if (!selectedChild) {
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return;
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}
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selectedChild.slot = "current";
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}
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}
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#renderTabs() {
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if (!this.titles) {
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return nothing;
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}
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return html`<div
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id="buttons"
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class=${classMap(this.theme.components.Tabs.element)}
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>
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${repeat(this.titles, (title, idx) => {
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let titleString = "";
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if ("literalString" in title && title.literalString) {
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titleString = title.literalString;
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} else if ("literal" in title && title.literal !== undefined) {
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titleString = title.literal;
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} else if (title && "path" in title && title.path) {
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if (!this.processor || !this.component) {
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return html`(no model)`;
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}
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const textValue = this.processor.getData(
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this.component,
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title.path,
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this.surfaceId ?? A2uiMessageProcessor.DEFAULT_SURFACE_ID
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);
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if (typeof textValue !== "string") {
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return html`(invalid)`;
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}
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titleString = textValue;
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}
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let classes;
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if (this.selected === idx) {
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classes = Styles.merge(
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this.theme.components.Tabs.controls.all,
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this.theme.components.Tabs.controls.selected
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);
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} else {
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classes = { ...this.theme.components.Tabs.controls.all };
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}
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return html`<button
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?disabled=${this.selected === idx}
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class=${classMap(classes)}
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@click=${() => {
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this.selected = idx;
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}}
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>
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${titleString}
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</button>`;
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})}
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</div>`;
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}
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#renderSlot() {
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return html`<slot name="current"></slot>`;
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}
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render() {
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return html`<section
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class=${classMap(this.theme.components.Tabs.container)}
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style=${this.theme.additionalStyles?.Tabs
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? styleMap(this.theme.additionalStyles?.Tabs)
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: nothing}
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>
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${[this.#renderTabs(), this.#renderSlot()]}
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</section>`;
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}
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}
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