Project import generated by Copybara.
GitOrigin-RevId: d9e9e3fb4e31372ec1fb43b178994ca78fa8fe70
diff --git a/static_src/elements/chops/chops-chip/chops-chip.js b/static_src/elements/chops/chops-chip/chops-chip.js
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+++ b/static_src/elements/chops/chops-chip/chops-chip.js
@@ -0,0 +1,122 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import {LitElement, html, css} from 'lit-element';
+
+/**
+ * `<chops-chip>` displays a chip.
+ * "Chips are compact elements that represent an input, attribute, or action."
+ * https://material.io/components/chips/
+ */
+export class ChopsChip extends LitElement {
+ /** @override */
+ static get properties() {
+ return {
+ focusable: {type: Boolean, reflect: true},
+ thumbnail: {type: String},
+ buttonIcon: {type: String},
+ buttonLabel: {type: String},
+ };
+ }
+
+ /** @override */
+ constructor() {
+ super();
+
+ /** @type {boolean} */
+ this.focusable = false;
+
+ /** @type {string} */
+ this.thumbnail = '';
+
+ /** @type {string} */
+ this.buttonIcon = '';
+ /** @type {string} */
+ this.buttonLabel = '';
+ }
+
+ /** @override */
+ static get styles() {
+ return css`
+ :host {
+ --chops-chip-bg-color: var(--chops-blue-gray-50);
+ display: inline-flex;
+ padding: 0px 10px;
+ line-height: 22px;
+ margin: 0 2px;
+ border-radius: 12px;
+ background: var(--chops-chip-bg-color);
+ align-items: center;
+ font-size: var(--chops-main-font-size);
+ box-sizing: border-box;
+ border: 1px solid var(--chops-chip-bg-color);
+ }
+ :host(:focus), :host(.selected) {
+ background: var(--chops-active-choice-bg);
+ border: 1px solid var(--chops-light-accent-color);
+ }
+ :host([hidden]) {
+ display: none;
+ }
+ i.left {
+ margin: 0 4px 0 -6px;
+ }
+ button {
+ border-radius: 50%;
+ cursor: pointer;
+ background: none;
+ border: 0;
+ padding: 0;
+ margin: 0 -6px 0 4px;
+ display: inline-flex;
+ align-items: center;
+ transition: background-color 0.2s ease-in-out;
+ }
+ button[hidden] {
+ display: none;
+ }
+ button:hover {
+ background: var(--chops-gray-300);
+ }
+ i.material-icons {
+ color: var(--chops-primary-icon-color);
+ font-size: 14px;
+ user-select: none;
+ }
+ `;
+ }
+
+ /** @override */
+ render() {
+ return html`
+ <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
+ ${this.thumbnail ? html`
+ <i class="material-icons left">${this.thumbnail}</i>
+ ` : ''}
+ <slot></slot>
+ ${this.buttonIcon ? html`
+ <button @click=${this.clickButton} aria-label=${this.buttonLabel}>
+ <i class="material-icons" aria-hidden="true"}>${this.buttonIcon}</i>
+ </button>
+ `: ''}
+ `;
+ }
+
+ /** @override */
+ update(changedProperties) {
+ if (changedProperties.has('focusable')) {
+ this.tabIndex = this.focusable ? '0' : undefined;
+ }
+ super.update(changedProperties);
+ }
+
+ /**
+ * @param {MouseEvent} e A click event.
+ * @fires CustomEvent#click-button
+ */
+ clickButton(e) {
+ this.dispatchEvent(new CustomEvent('click-button'));
+ }
+}
+customElements.define('chops-chip', ChopsChip);