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‎README.md

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@@ -9,4 +9,11 @@ npm install
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Development mode,
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```bash
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npm run dev
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npm run dev
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```
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Build,
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```bash
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npm run build
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```

‎example/table/index.html

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@@ -19,22 +19,23 @@
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<body>
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<js-canvas>
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<js-nav vertical>
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<js-nav>
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<js-navitem>Home</js-navitem>
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</js-nav>
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<js-content class="content-scroll">
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<js-table id="items-table" data="#items-data">
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<js-tablehead body="#items-table"></js-tablehead>
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<js-tablecol name="author">Author</js-tablecol>
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<js-tablecol name="pubdate">Date</js-tablecol>
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<js-tablecol name="title">Title</js-tablecol>
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<js-tablecol name="desc">Description</js-tablecol>
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<js-tablecol name="media">Media</js-tablecol>
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<!-- Table columns -->
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<js-itemcol name="title"></js-itemcol>
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<!-- Hide other columns by default -->
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<js-tablecol hidden></js-tablecol>
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</js-table>
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</js-content>
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<!-- data source and model for items -->
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<js-provider id="items-provider" path="http://cm5.lan:8000/feed/v1/document"></js-provider>
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<js-array id="items-data" provider="#items-provider" select="body"></js-array>
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<js-nav>
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<!-- data source and model for items -->
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<js-provider id="items-provider" path="http://cm5.lan:8000/feed/v1/document?limit=50"></js-provider>
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<js-array id="items-data" provider="#items-provider" select="body"></js-array>
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</js-nav>
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</js-canvas>
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</body>
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‎example/table/index.js

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@@ -1,5 +1,6 @@
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// This file defines all the styles and elements used for the web components
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import '../../src/index';
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import './item.js'
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/* Code to reload in the esbuild serve development environment */
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window.addEventListener('load', () => {

‎example/table/item.js

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@@ -0,0 +1,43 @@
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import { html } from 'lit';
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import { TableColumnElement } from '../../src/element/TableColumnElement';
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export class ItemColumn extends TableColumnElement {
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static get localName() {
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return 'js-itemcol';
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}
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// eslint-disable-next-line class-methods-use-this
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#text(value, key) {
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return value instanceof Object ? value[key] : value;
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}
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render(value, key) {
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const cell = value instanceof Object ? value[key] : value;
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switch (key) {
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case 'title':
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return html`
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<div style="padding: 5px;">
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<js-tag size="small">${this.#text(value, 'author')}</js-tag>
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<h4>${this.#text(value, 'title')}</h4>
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<small><strong>${this.#text(value, 'pubdate')}</strong></small>
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<p>${this.#text(value, 'desc')}</p>
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${value.media ? this.#renderAudio(value.media[0]) : ''}
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</div>
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`;
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default:
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}
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return html`${cell}`;
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}
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// eslint-disable-next-line class-methods-use-this
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#renderAudio(media) {
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return html`
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<audio controls>
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<source src="${media.url}" type="${media.type}">
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Your browser does not support the audio element.
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</audio>
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`;
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}
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}
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customElements.define(ItemColumn.localName, ItemColumn); // js-itemcol

‎src/element/TableColumnElement.js

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@@ -1,10 +1,12 @@
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import { LitElement } from "lit";
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import { LitElement, html } from 'lit';
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/**
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* @class TableColumnElement
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*
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* This class provides a table column element, for rendering
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* a table cell. It also provides properties for the column.
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* The name property is used to identify the column in the
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* table, and the hidden property is used to hide the column.
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*
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* @example
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* <js-tablecol name="id">ID</js-tablecol>
@@ -17,6 +19,25 @@ export class TableColumnElement extends LitElement {
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static get properties() {
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return {
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name: { type: String, reflect: true },
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hidden: { type: Boolean, reflect: true },
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};
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}
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/**
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* Get the column title.
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*
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* @returns {string}
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*/
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get title() {
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return this.textContent;
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}
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// eslint-disable-next-line class-methods-use-this
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render(value, key) {
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const cell = value instanceof Object ? value[key] : value;
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if (cell instanceof Object) {
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return html`<code>${JSON.stringify(cell)}</code>`;
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}
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return html`${cell}`;
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}
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}

‎src/element/TableElement.js

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@@ -13,10 +13,18 @@ import { TableColumnElement } from './TableColumnElement';
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* <js-table data="#data-source-id"><!-- .... --></js-table>
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*/
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export class TableElement extends LitElement {
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// Data source node
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#data = null;
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// Table header node
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#head = null;
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// Table column renderers
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#renderer = {};
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// Default renderer
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#default;
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static get localName() {
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return 'js-table';
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}
@@ -98,13 +106,19 @@ export class TableElement extends LitElement {
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const elements = this.childNodes;
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for (let i = 0; i < elements.length; i += 1) {
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if (elements[i] instanceof TableColumnElement) {
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// Column name and title
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const name = elements[i].getAttribute('name');
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// If the name is not empty, add it to the column list
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if (name && name !== '') {
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// Append the column to the list
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if (this.columns.indexOf(name) === -1) {
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this.columns.push(elements[i].getAttribute('name'));
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}
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// TODO: Set this column as the renderer
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// Set column renderer
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this.#renderer[name] = elements[i];
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} else {
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// Set the default renderer
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this.#default = elements[i];
108122
}
109123
}
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}
@@ -127,14 +141,28 @@ export class TableElement extends LitElement {
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return rows;
128142
}
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144+
#rendererFor(key) {
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const renderer = this.#renderer[key];
146+
if (renderer) {
147+
return renderer;
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}
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return this.#default;
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}
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#hidden(key) {
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return this.#rendererFor(key).hidden;
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}
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#renderColumns(row) {
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const cells = [];
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if (row instanceof Object) {
133159
Object.keys(row).forEach((key) => {
134-
if (this.columns.indexOf(key) === -1) {
135-
this.columns.push(key);
160+
if (!this.#hidden(key)) {
161+
if (this.columns.indexOf(key) === -1) {
162+
this.columns.push(key);
163+
}
164+
cells[this.columns.indexOf(key)] = html`<td><div class="cell">${this.#renderCell(row, key)}</div></td>`;
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}
137-
cells[this.columns.indexOf(key)] = html`<td><div class="cell">${this.#renderCell(row[key])}</div></td>`;
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});
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} else {
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this.columns.push('value');
@@ -152,14 +180,7 @@ export class TableElement extends LitElement {
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return cells;
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}
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// eslint-disable-next-line class-methods-use-this
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#renderCell(cell) {
157-
if (cell === null || cell === undefined || cell === '') {
158-
return html`nil`;
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}
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if (cell instanceof Object) {
161-
return html`<code>${JSON.stringify(cell)}</code>`;
162-
}
163-
return html`${cell}`;
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#renderCell(value, key) {
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return this.#rendererFor(key).render(value, key);
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}
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}

‎src/tokens.css

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--success-color: #285;
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--warning-color: #f72;
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--error-color: #f55;
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--light-color: #eee;
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--light-color: #f9f9f9;
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--white-color: #fff;
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--dark-color: #333;
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--black-color: #000;

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