42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
import svgEditor from '../svg-editor.js';
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/**
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* Should not be needed for same domain control (just call via child frame),
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* but an API common for cross-domain and same domain use can be found
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* in embedapi.js with a demo at embedapi.html
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*/
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svgEditor.addExtension('xdomain-messaging', function () {
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const svgCanvas = svgEditor.canvas;
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try {
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window.addEventListener('message', function (e) {
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// We accept and post strings for the sake of IE9 support
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if (typeof e.data !== 'string' || e.data.charAt() === '|') {
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return;
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}
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const data = JSON.parse(e.data);
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if (!data || typeof data !== 'object' || data.namespace !== 'svgCanvas') {
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return;
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}
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// The default is not to allow any origins, including even the same domain or if run on a file:// URL
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// See config-sample.js for an example of how to configure
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const {allowedOrigins} = svgEditor.curConfig;
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if (!allowedOrigins.includes('*') && !allowedOrigins.includes(e.origin)) {
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return;
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}
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const cbid = data.id;
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const {name, args} = data;
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const message = {
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namespace: 'svg-edit',
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id: cbid
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};
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try {
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message.result = svgCanvas[name].apply(svgCanvas, args);
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} catch (err) {
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message.error = err.message;
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}
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e.source.postMessage(JSON.stringify(message), '*');
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}, false);
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} catch (err) {
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console.log('Error with xdomain message listener: ' + err);
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}
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});
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