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28 lines
747 B
JavaScript
28 lines
747 B
JavaScript
/**
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* Expects an object containing a blob, a start offset, an end offset
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* and an optional content type to slice the blob. Returns an object
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* containing the size and type of the sliced blob.
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*/
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onmessage = function(event) {
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var blob = event.data.blob;
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var start = event.data.start;
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var end = event.data.end;
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var contentType = event.data.contentType;
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var slicedBlob;
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if (contentType == undefined && end == undefined) {
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slicedBlob = blob.slice(start);
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} else if (contentType == undefined) {
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slicedBlob = blob.slice(start, end);
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} else {
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slicedBlob = blob.slice(start, end, contentType);
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}
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var rtnObj = new Object();
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rtnObj.size = slicedBlob.size;
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rtnObj.type = slicedBlob.type;
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postMessage(rtnObj);
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};
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