Quelle test_ipcBlob_fileReaderSync.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/file/ipc/tests/test_ipcBlob_fileReaderSync.html

<!DOCTYPE HTML>
<html>
<head>
  <title>Test IPCBlob and FileReaderSync</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script type="text/javascript">

function workerScript() {
  // Available to workers.
  /* global FileReaderSync */
  onmessage = function(event) {
    let readerMemoryBlob = new FileReaderSync();
    let status = readerMemoryBlob.readAsText(new Blob(['hello world'])) == 'hello world';
    postMessage({ status, message: "FileReaderSync with memory blob still works" });

    let readerIPCBlob1 = new FileReaderSync();
    postMessage({ blob: event.data, method: 'readAsText',
                  data: readerIPCBlob1.readAsText(event.data)});

    let readerIPCBlob2 = new FileReaderSync();
    postMessage({ blob: event.data, method: 'readAsArrayBuffer',
                  data: readerIPCBlob2.readAsArrayBuffer(event.data)});

    let readerIPCBlob3 = new FileReaderSync();
    postMessage({ blob: event.data, method: 'readAsDataURL',
                  data: readerIPCBlob3.readAsDataURL(event.data)});

    let multipartBlob = new Blob(['wow', event.data]);

    let readerIPCBlobMultipart1 = new FileReaderSync();
    postMessage({ blob: multipartBlob, method: 'readAsText',
                  data: readerIPCBlobMultipart1.readAsText(multipartBlob)});

    let readerIPCBlobMultipart2 = new FileReaderSync();
    postMessage({ blob: multipartBlob, method: 'readAsArrayBuffer',
                  data: readerIPCBlobMultipart2.readAsArrayBuffer(multipartBlob)});

    let readerIPCBlobMultipart3 = new FileReaderSync();
    postMessage({ blob: multipartBlob, method: 'readAsDataURL',
                  data: readerIPCBlobMultipart3.readAsDataURL(multipartBlob)});

    postMessage({ finish: true });
  }
}

let completed = false;
let pendingTasks = 0;
function maybeFinish() {
  if (completed && !pendingTasks) {
    SimpleTest.finish();
  }
}

let workerUrl = URL.createObjectURL(new Blob(["(", workerScript.toString(), ")()"]));
let worker = new Worker(workerUrl);
worker.onmessage = event => {
  if ("status" in event.data) {
    ok(event.data.status, event.data.message);
    return;
  }

  if ("blob" in event.data) {
    let fr = new FileReader();
    fr[event.data.method](event.data.blob);
    ++pendingTasks;
    fr.onload = () => {
      if (event.data.method != 'readAsArrayBuffer') {
        is(event.data.data, fr.result, "The file has been read");
      } else {
        is(event.data.data.byteLength, fr.result.byteLength, "The file has been read");
      }
      --pendingTasks;
      maybeFinish();
    }

    return;
  }

  if ("finish" in event.data) {
    completed = true;
    maybeFinish();
  }
};

let url = SimpleTest.getTestFileURL("script_file.js");
let script = SpecialPowers.loadChromeScript(url);
script.addMessageListener("file.opened", message => {
  worker.postMessage(message.file);
});

script.sendAsyncMessage("file.open");

SimpleTest.waitForExplicitFinish();

</script>
</pre>
</body>
</html>

Messung V0.5

¤ Dauer der Verarbeitung: 0.3 Sekunden ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.