preact-material-components/LayoutGrid/LayoutGrid.jsx

preact wrapper for "Material Components for the web"

import {h} from 'preact';
import MaterialComponent from '../MaterialComponent';

class LayoutGrid extends MaterialComponent {
  constructor() {
    super();
    this.componentName = 'layout-grid';
  }
  materialDom(props) {
    return (
      <div ref={this.setControlRef} {...props}>
        {props.children}
      </div>
    );
  }
}

class LayoutGridInner extends MaterialComponent {
  constructor() {
    super();
    this.componentName = 'layout-grid__inner';
  }
  materialDom(props) {
    return (
      <div ref={this.setControlRef} {...props}>
        {props.children}
      </div>
    );
  }
}

/**
 * @prop cols = 0
 * @prop desktopCols = 0
 * @prop tabletCols = 0
 * @prop phoneCols = 0
 * @prop order = 0
 * @prop align = ''
 */
class LayoutGridCell extends MaterialComponent {
  constructor() {
    super();
    this.componentName = 'layout-grid__cell';
    this._propsDict = {
      cols: 'cols',
      desktop: 'desktopCols',
      tablet: 'tabletCols',
      phone: 'phoneCols',
      order: 'order',
      align: 'align'
    };
  }
  createClassName(props) {
    const baseClass = 'mdc-layout-grid__cell--';
    const classes = [];

    if (props[this._propsDict.cols]) {
      classes.push(baseClass + 'span-' + props[this._propsDict.cols]);
    }

    if (props[this._propsDict.desktop]) {
      classes.push(
        baseClass + 'span-' + props[this._propsDict.desktop] + '-desktop'
      );
    }

    if (props[this._propsDict.tablet]) {
      classes.push(
        baseClass + 'span-' + props[this._propsDict.tablet] + '-tablet'
      );
    }

    if (props[this._propsDict.phone]) {
      classes.push(
        baseClass + 'span-' + props[this._propsDict.phone] + '-phone'
      );
    }

    if (props[this._propsDict.order]) {
      classes.push(baseClass + 'order-' + props[this._propsDict.order]);
    }

    if (props[this._propsDict.align]) {
      classes.push(baseClass + 'align-' + props[this._propsDict.align]);
    }

    return classes.join(' ');
  }
  materialDom(props) {
    return (
      <div
        {...props}
        className={this.createClassName(props)}
        ref={this.setControlRef}>
        {props.children}
      </div>
    );
  }
  render() {
    const element = super.render();
    // remove the extra attributes used for customising this element - keep the DOM clean
    Object.keys(this._propsDict).forEach(
      key => delete element.attributes[this._propsDict[key]]
    );
    return element;
  }
}

LayoutGrid.Cell = LayoutGridCell;
LayoutGrid.Inner = LayoutGridInner;

export default LayoutGrid;