var handler = function()

in themes/docsy/assets/js/drawio.js [40:67]

• 24 lines of code
• 9 McCabe index (conditional complexity)

      var handler = function (evt) {
        var wind = iframe.contentWindow;
        if (evt.data.length > 0 && evt.source == wind) {
          var msg = JSON.parse(evt.data);

          if (msg.event == 'init') {
            wind.postMessage(JSON.stringify({action: 'load', xml: imgdata}), '*');

          } else if (msg.event == 'save') {
            var fmt = imgdata.indexOf('data:image/png') == 0 ? 'xmlpng' : 'xmlsvg';
            wind.postMessage(JSON.stringify({action: 'export', format: fmt}), '*');

          } else if (msg.event == 'export') {
            const fn = img.src.replace(/^.*?([^/]+)$/, '$1');
            const dl = document.createElement('a');
            dl.setAttribute('href', msg.data);
            dl.setAttribute('download', fn);
            document.body.appendChild(dl);
            dl.click();
            dl.parentNode.removeChild(dl);
          }

          if (msg.event == 'exit' || msg.event == 'export') {
            window.removeEventListener('message', handler);
            closeFrame();
          }
        }
      };