lottie-web/player/js/utils/shapes/ShapeModifiers.js

After Effects plugin for exporting animations to SVG + JavaScript or canvas + JavaScript

import {
  extendPrototype,
} from '../functionExtensions';
import DynamicPropertyContainer from '../helpers/dynamicProperties';
import {
  initialDefaultFrame,
} from '../../main';
import shapeCollectionPool from '../pooling/shapeCollection_pool';

const ShapeModifiers = (function () {
  var ob = {};
  var modifiers = {};
  ob.registerModifier = registerModifier;
  ob.getModifier = getModifier;

  function registerModifier(nm, factory) {
    if (!modifiers[nm]) {
      modifiers[nm] = factory;
    }
  }

  function getModifier(nm, elem, data) {
    return new modifiers[nm](elem, data);
  }

  return ob;
}());

function ShapeModifier() {}
ShapeModifier.prototype.initModifierProperties = function () {};
ShapeModifier.prototype.addShapeToModifier = function () {};
ShapeModifier.prototype.addShape = function (data) {
  if (!this.closed) {
    // Adding shape to dynamic properties. It covers the case where a shape has no effects applied, to reset it's _mdf state on every tick.
    data.sh.container.addDynamicProperty(data.sh);
    var shapeData = { shape: data.sh, data: data, localShapeCollection: shapeCollectionPool.newShapeCollection() };
    this.shapes.push(shapeData);
    this.addShapeToModifier(shapeData);
    if (this._isAnimated) {
      data.setAsAnimated();
    }
  }
};
ShapeModifier.prototype.init = function (elem, data) {
  this.shapes = [];
  this.elem = elem;
  this.initDynamicPropertyContainer(elem);
  this.initModifierProperties(elem, data);
  this.frameId = initialDefaultFrame;
  this.closed = false;
  this.k = false;
  if (this.dynamicProperties.length) {
    this.k = true;
  } else {
    this.getValue(true);
  }
};
ShapeModifier.prototype.processKeys = function () {
  if (this.elem.globalData.frameId === this.frameId) {
    return;
  }
  this.frameId = this.elem.globalData.frameId;
  this.iterateDynamicProperties();
};

extendPrototype([DynamicPropertyContainer], ShapeModifier);

export {
  ShapeModifiers,
  ShapeModifier,
};