@kitware/vtk.js/IO/Misc/JSONReader.js

Visualization Toolkit for the Web

import { m as macro } from '../../macros2.js';

// ----------------------------------------------------------------------------
// vtkJSONReader methods
// ----------------------------------------------------------------------------

function vtkJSONReader(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkJSONReader');

  // Internal method to fetch Array
  function fetchData(url) {
    let option = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return model.dataAccessHelper.fetchText(publicAPI, url, option);
  }

  // Set DataSet url
  publicAPI.setUrl = function (url) {
    let option = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    model.url = url;

    // Fetch metadata
    return publicAPI.loadData(option);
  };

  // Fetch the actual data arrays
  publicAPI.loadData = function () {
    let option = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    return fetchData(model.url, option).then(publicAPI.parseAsText);
  };
  publicAPI.parseAsText = content => {
    if (!content) {
      return false;
    }
    model.data = JSON.parse(content);
    publicAPI.modified();
    return true;
  };
  publicAPI.requestData = (inData, outData) => {
    outData[0] = model.data;
  };

  // return Busy state
  publicAPI.isBusy = () => false;
  publicAPI.getNumberOfOutputPorts = () => model.numberOfOutputs;
}

// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------

const DEFAULT_VALUES = {
  // url: null,
};

// ----------------------------------------------------------------------------

function extend(publicAPI, model) {
  let initialValues = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  Object.assign(model, DEFAULT_VALUES, initialValues);

  // Build VTK API
  macro.obj(publicAPI, model);
  macro.get(publicAPI, model, ['url']);
  macro.algo(publicAPI, model, 0, 1);
  macro.event(publicAPI, model, 'busy');

  // Object methods
  vtkJSONReader(publicAPI, model);
}

// ----------------------------------------------------------------------------

const newInstance = macro.newInstance(extend, 'vtkJSONReader');

// ----------------------------------------------------------------------------

var vtkJSONReader$1 = {
  newInstance,
  extend
};

export { vtkJSONReader$1 as default, extend, newInstance };