34641c9e86
The change converts the following files to typescript: * elements/plugins/gr-external-style/gr-external-style.ts Change-Id: Ia4edb8efb6fc901654db52e4540d0658ac4e5f40
90 lines
2.8 KiB
TypeScript
90 lines
2.8 KiB
TypeScript
/**
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* @license
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* Copyright (C) 2017 The Android Open Source Project
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 '../../shared/gr-js-api-interface/gr-js-api-interface';
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import {updateStyles} from '@polymer/polymer/lib/mixins/element-mixin';
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import {GestureEventListeners} from '@polymer/polymer/lib/mixins/gesture-event-listeners';
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import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mixin';
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import {PolymerElement} from '@polymer/polymer/polymer-element';
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import {htmlTemplate} from './gr-external-style_html';
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import {getPluginEndpoints} from '../../shared/gr-js-api-interface/gr-plugin-endpoints';
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import {getPluginLoader} from '../../shared/gr-js-api-interface/gr-plugin-loader';
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import {customElement, property} from '@polymer/decorators';
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@customElement('gr-external-style')
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class GrExternalStyle extends GestureEventListeners(
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LegacyElementMixin(PolymerElement)
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) {
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static get template() {
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return htmlTemplate;
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}
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// This is a required value for this component.
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@property({type: String})
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name!: string;
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@property({type: Array})
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_stylesApplied: string[] = [];
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_applyStyle(name: string) {
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if (this._stylesApplied.includes(name)) {
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return;
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}
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this._stylesApplied.push(name);
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const s = document.createElement('style');
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s.setAttribute('include', name);
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const cs = document.createElement('custom-style');
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cs.appendChild(s);
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// When using Shadow DOM <custom-style> must be added to the <body>.
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// Within <gr-external-style> itself the styles would have no effect.
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const topEl = document.getElementsByTagName('body')[0];
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topEl.insertBefore(cs, topEl.firstChild);
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updateStyles();
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}
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_importAndApply() {
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getPluginEndpoints()
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.getAndImportPlugins(this.name)
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.then(() => {
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const moduleNames = getPluginEndpoints().getModules(this.name);
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for (const name of moduleNames) {
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this._applyStyle(name);
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}
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});
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}
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/** @override */
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attached() {
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super.attached();
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this._importAndApply();
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}
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/** @override */
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ready() {
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super.ready();
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getPluginLoader()
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.awaitPluginsLoaded()
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.then(() => this._importAndApply());
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}
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}
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declare global {
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interface HTMLElementTagNameMap {
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'gr-external-style': GrExternalStyle;
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}
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}
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