2011-08-15 20:40:38 -07:00
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<?xml version="1.0"?>
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<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
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<?xml-stylesheet type="text/css" href="/tests/SimpleTest/test.css"?>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=664783
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-->
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<window title="Mozilla Bug 664783"
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xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<script type="application/javascript"
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src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
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2011-09-22 19:36:09 -07:00
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<script type="application/javascript" src="dom_worker_helper.js"/>
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2011-08-15 20:40:38 -07:00
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<!-- test results are displayed in the html:body -->
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<body xmlns="http://www.w3.org/1999/xhtml">
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<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=664783"
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target="_blank">Mozilla Bug 664783</a>
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<div id="content" style="display: none">
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<input id="fileList" type="file"></input>
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</div>
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</body>
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<!-- test code goes here -->
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<script type="application/javascript">
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<![CDATA[
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/** Test for Bug 664783 **/
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var fileNum = 0;
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/**
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* Create a file which contains the given data and optionally adds the specified file extension.
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*/
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function createFileWithData(fileData, /** optional */ extension) {
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var testFile = Components.classes["@mozilla.org/file/directory_service;1"]
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.getService(Components.interfaces.nsIProperties)
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.get("ProfD", Components.interfaces.nsIFile);
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var fileExtension = (extension == undefined) ? "" : "." + extension;
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testFile.append("workerFileReaderSync" + fileNum++ + fileExtension);
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var outStream = Components.classes["@mozilla.org/network/file-output-stream;1"]
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.createInstance(Components.interfaces.nsIFileOutputStream);
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outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
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0666, 0);
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outStream.write(fileData, fileData.length);
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outStream.close();
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var fileList = document.getElementById('fileList');
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fileList.value = testFile.path;
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return fileList.files[0];
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}
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function convertToUTF16(s) {
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res = "";
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for (var i = 0; i < s.length; ++i) {
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c = s.charCodeAt(i);
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res += String.fromCharCode(c >>> 8, c & 255);
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}
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return res;
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}
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/**
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* Converts the given string to a data URL of the specified mime type.
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*/
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function convertToDataURL(mime, s) {
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return "data:" + mime + ";base64," + btoa(s);
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}
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/**
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* Create a worker to read a file containing fileData using FileReaderSync and
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* checks the return type against the expected type. Optionally set an encoding
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* for reading the file as text.
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*/
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function readFileData(fileData, expectedText, /** optional */ encoding) {
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var worker = new Worker("fileReaderSync_worker.js");
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worker.onmessage = function(event) {
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is(event.data.text, expectedText, "readAsText in worker returned incorrect result.");
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is(event.data.bin, fileData, "readAsBinaryString in worker returned incorrect result.");
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is(event.data.url, convertToDataURL("application/octet-stream", fileData), "readAsDataURL in worker returned incorrect result.");
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is(event.data.arrayBuffer.byteLength, fileData.length, "readAsArrayBuffer returned buffer of incorrect length.");
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finish();
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2011-08-15 20:40:38 -07:00
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};
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worker.onerror = function(event) {
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ok(false, "Worker had an error: " + event.data);
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finish();
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2011-08-15 20:40:38 -07:00
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};
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var params = {file: createFileWithData(fileData), encoding: encoding};
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worker.postMessage(params);
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2011-09-22 19:36:09 -07:00
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waitForWorkerFinish();
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2011-08-15 20:40:38 -07:00
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}
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/**
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* Create a worker which reuses a FileReaderSync to read multiple files as DataURLs.
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*/
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function reuseReaderForURL(files, expected) {
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var worker = new Worker("fileReaderSync_worker.js");
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worker.onerror = function(event) {
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ok(false, "Worker had an error: " + event.data);
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finish();
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};
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var k = 0;
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worker.onmessage = function(event) {
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is(event.data.url, expected[k], "readAsDataURL in worker returned incorrect result when reusing FileReaderSync.");
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k++;
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finish();
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};
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for (var i = 0; i < files.length; ++i) {
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var params = {file: files[i], encoding: undefined};
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worker.postMessage(params);
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waitForWorkerFinish();
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}
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}
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/**
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* Create a worker which reuses a FileReaderSync to read multiple files as text.
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*/
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function reuseReaderForText(fileData, expected) {
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var worker = new Worker("fileReaderSync_worker.js");
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worker.onerror = function(event) {
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ok(false, "Worker had an error: " + event.data);
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finish();
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};
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var k = 0;
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worker.onmessage = function(event) {
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is(event.data.text, expected[k++], "readAsText in worker returned incorrect result when reusing FileReaderSync.");
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finish();
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};
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for (var i = 0; i < fileData.length; ++i) {
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var params = {file: createFileWithData(fileData[i]), encoding: undefined};
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worker.postMessage(params);
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waitForWorkerFinish();
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2011-08-15 20:40:38 -07:00
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}
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}
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/**
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* Creates a a worker which reads a file containing fileData as an ArrayBuffer.
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* Verifies that the ArrayBuffer when interpreted as a string matches the original data.
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*/
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function readArrayBuffer(fileData) {
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var worker = new Worker("fileReaderSync_worker.js");
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worker.onmessage = function(event) {
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var view = new Uint8Array(event.data.arrayBuffer);
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is(event.data.arrayBuffer.byteLength, fileData.length, "readAsArrayBuffer returned buffer of incorrect length.");
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is(String.fromCharCode.apply(String, view), fileData, "readAsArrayBuffer returned buffer containing incorrect data.");
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finish();
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};
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worker.onerror = function(event) {
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ok(false, "Worker had an error: " + event.data);
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finish();
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2011-08-15 20:40:38 -07:00
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};
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var params = {file: createFileWithData(fileData), encoding: undefined};
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worker.postMessage(params);
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2011-09-22 19:36:09 -07:00
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waitForWorkerFinish();
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2011-08-15 20:40:38 -07:00
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}
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// Empty file.
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readFileData("", "");
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// Typical use case.
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readFileData("text", "text");
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// Test reading UTF-16 characters.
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readFileData(convertToUTF16("text"), "text", "UTF-16");
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// First read a file of type "text/plain", then read a file of type "application/octet-stream".
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reuseReaderForURL([createFileWithData("text", "txt"), createFileWithData("text")],
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[convertToDataURL("text/plain", "text"),
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convertToDataURL("application/octet-stream", "text")]);
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// First read UTF-16 characters marked using BOM, then read UTF-8 characters.
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reuseReaderForText([convertToUTF16("\ufefftext"), "text"],
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["text", "text"]);
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// Reading data as ArrayBuffer.
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readArrayBuffer("");
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readArrayBuffer("text");
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]]>
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</script>
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</window>
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