Function defaultLoading

_benchmarks/sample_echarts.js:23497–23603

* @param {module:echarts/ExtensionAPI} api * @param {Object} [opts] * @param {string} [opts.text] * @param {string} [opts.color] * @param {string} [opts.textColor] * @return {module:zrender/Element}

(api, opts)

     */

    function defaultLoading(api, opts) {
      opts = opts || {};
      defaults(opts, {
        text: 'loading',
        textColor: '#000',
        fontSize: 12,
        fontWeight: 'normal',
        fontStyle: 'normal',
        fontFamily: 'sans-serif',
        maskColor: 'rgba(255, 255, 255, 0.8)',
        showSpinner: true,
        color: '#5470c6',
        spinnerRadius: 10,
        lineWidth: 5,
        zlevel: 0
      });
      var group = new Group();
      var mask = new Rect({
        style: {
          fill: opts.maskColor
        },
        zlevel: opts.zlevel,
        z: 10000
      });
      group.add(mask);
      var textContent = new ZRText({
        style: {
          text: opts.text,
          fill: opts.textColor,
          fontSize: opts.fontSize,
          fontWeight: opts.fontWeight,
          fontStyle: opts.fontStyle,
          fontFamily: opts.fontFamily
        },
        zlevel: opts.zlevel,
        z: 10001
      });
      var labelRect = new Rect({
        style: {
          fill: 'none'
        },
        textContent: textContent,
        textConfig: {
          position: 'right',
          distance: 10
        },
        zlevel: opts.zlevel,
        z: 10001
      });
      group.add(labelRect);
      var arc;

      if (opts.showSpinner) {
        arc = new Arc({
          shape: {
            startAngle: -PI$3 / 2,
            endAngle: -PI$3 / 2 + 0.1,
            r: opts.spinnerRadius