fela-dom/es/dom/connection/createSubscription.js

Fela package for working with the DOM

/* eslint-disable consistent-return */
import { objectEach } from 'fast-loops';
import { RULE_TYPE, KEYFRAME_TYPE, FONT_TYPE, STATIC_TYPE, CLEAR_TYPE, generateCSSRule } from 'fela-utils';
import getNodeFromCache from './getNodeFromCache';
import insertRule from './insertRule';
export default function createSubscription(renderer) {
  var targetDocument = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : document;
  return function (change) {
    if (change.type === CLEAR_TYPE) {
      objectEach(renderer.nodes, function (node) {
        return node.parentNode.removeChild(node);
      });
      renderer.nodes = {};
      renderer.scoreIndex = {};
      return;
    }

    var node = getNodeFromCache(change, renderer, targetDocument);

    switch (change.type) {
      case KEYFRAME_TYPE:
        if (node.textContent.indexOf(change.keyframe) === -1) {
          node.textContent += change.keyframe;
        }

        break;

      case FONT_TYPE:
        if (node.textContent.indexOf(change.fontFace) === -1) {
          node.textContent += change.fontFace;
        }

        break;

      case STATIC_TYPE:
        var css = change.selector ? generateCSSRule(change.selector, change.css) : change.css;

        if (node.textContent.indexOf(css) === -1) {
          node.textContent += css;
        }

        break;

      case RULE_TYPE:
        insertRule(change, renderer, node);
        break;

      default:
        // TODO: warning
        break;
    }
  };
}