chrome-devtools-frontend/front_end/panels/elements/components/CSSQuery.ts

Chrome DevTools UI

// Copyright (c) 2021 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.
/* eslint-disable rulesdir/no-lit-render-outside-of-view */

import * as UI from '../../../ui/legacy/legacy.js';
import * as Lit from '../../../ui/lit/lit.js';
import * as VisualLogging from '../../../ui/visual_logging/visual_logging.js';

import cssQueryStyles from './cssQuery.css.js';

const {render, html} = Lit;

export interface CSSQueryData {
  queryPrefix: string;
  queryName?: string;
  queryText: string;
  onQueryTextClick?: (event: Event) => void;
  jslogContext: string;
}

export class CSSQuery extends HTMLElement {

  readonly #shadow = this.attachShadow({mode: 'open'});
  #queryPrefix = '';
  #queryName?: string;
  #queryText = '';
  #onQueryTextClick?: (event: Event) => void;
  #jslogContext?: string;

  set data(data: CSSQueryData) {
    this.#queryPrefix = data.queryPrefix;
    this.#queryName = data.queryName;
    this.#queryText = data.queryText;
    this.#onQueryTextClick = data.onQueryTextClick;
    this.#jslogContext = data.jslogContext;
    this.#render();
  }

  #render(): void {
    const queryClasses = Lit.Directives.classMap({
      query: true,
      editable: Boolean(this.#onQueryTextClick),
    });

    // Disabled until https://crbug.com/1079231 is fixed.
    // clang-format off
    const queryText = html`
      <span class="query-text" @click=${this.#onQueryTextClick}>${this.#queryText}</span>
    `;

    render(html`
        <style>${cssQueryStyles}</style>
        <style>${UI.inspectorCommonStyles}</style>
        <div class=${queryClasses} jslog=${
            VisualLogging.cssRuleHeader(this.#jslogContext).track({click:true, change: true})}>
          <slot name="indent"></slot>
          ${this.#queryPrefix ? html`<span>${this.#queryPrefix + ' '}</span>` : Lit.nothing}
          ${this.#queryName ? html`<span>${this.#queryName + ' '}</span>` : Lit.nothing}
          ${queryText} {
        </div>`,
        this.#shadow, {host: this});
    // clang-format on
  }
}

customElements.define('devtools-css-query', CSSQuery);

declare global {
  interface HTMLElementTagNameMap {
    'devtools-css-query': CSSQuery;
  }
}