30 lines
806 B
JavaScript
30 lines
806 B
JavaScript
OV.ExternalLibLocation = null;
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OV.LoadedExternalLibs = new Set ();
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OV.LoadExternalLibrary = function (libName)
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{
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return new Promise ((resolve, reject) => {
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if (OV.ExternalLibLocation === null) {
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reject ();
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return;
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}
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if (OV.LoadedExternalLibs.has (libName)) {
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resolve ();
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return;
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}
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let scriptElement = document.createElement ('script');
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scriptElement.type = 'text/javascript';
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scriptElement.src = OV.ExternalLibLocation + '/' + libName;
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scriptElement.onload = () => {
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OV.LoadedExternalLibs.add (libName);
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resolve ();
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};
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scriptElement.onerror = () => {
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reject ();
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};
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document.head.appendChild (scriptElement);
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});
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};
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