gecko-dev/dom/base/test/fileapi_chromeScript.js

30 строки
993 B
JavaScript

var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.importGlobalProperties(["File"]);
var fileNum = 1;
function createFileWithData(fileData) {
var willDelete = fileData === null;
var dirSvc = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties);
var testFile = dirSvc.get("ProfD", Ci.nsIFile);
testFile.append("fileAPItestfile" + fileNum);
fileNum++;
var outStream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
0o666, 0);
if (willDelete) {
fileData = "some irrelevant test data\n";
}
outStream.write(fileData, fileData.length);
outStream.close();
var domFile = new File(testFile);
if (willDelete) {
testFile.remove(/* recursive: */ false);
}
return domFile;
}
addMessageListener("files.open", function (message) {
sendAsyncMessage("files.opened", message.map(createFileWithData));
});