dom/workers/test/fileReadSlice_worker.js@97036ab72558 (annotated)
dom/workers/test/fileReadSlice_worker.js
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /** |
| michael@0 | 2 | * Expects an object containing a blob, a start index and an end index |
| michael@0 | 3 | * for slicing. Returns the contents of the blob read as text. |
| michael@0 | 4 | */ |
| michael@0 | 5 | onmessage = function(event) { |
| michael@0 | 6 | var blob = event.data.blob; |
| michael@0 | 7 | var start = event.data.start; |
| michael@0 | 8 | var end = event.data.end; |
| michael@0 | 9 | |
| michael@0 | 10 | var slicedBlob = blob.slice(start, end); |
| michael@0 | 11 | |
| michael@0 | 12 | var fileReader = new FileReaderSync(); |
| michael@0 | 13 | var text = fileReader.readAsText(slicedBlob); |
| michael@0 | 14 | |
| michael@0 | 15 | postMessage(text); |
| michael@0 | 16 | }; |
