Enumerating of files on sdcard

[nazar-pc]

I'm using snippet from this article: https://developer.mozilla.org/en-US/docs/Web/API/DeviceStorage.enumerate

var sdcard = navigator.getDeviceStorage('sdcard');

// Let's retrieve files from last week.
var param = {
  since: new Date((+new Date()) - 7*24*60*60*1000)
}

var cursor = sdcard.enumerate(param);

cursor.onsuccess = function () {

  if (this.result) {
    var file = this.result;
    console.log("File updated on: " + file.lastModifiedDate);

    // Once we found a file we check if there are other results
    // Then we move to the next result, which calls the cursor
    // success possibly with the next file as result.
    this.continue();
  }
}

cursor.onerror = function () {
    console.log(this.error.name);
};

But get error "TypeMismatchError" with 1.4 and 2.1 versions of simulator. Sorry if this is a stupid question, I only want to get list of files and directories, and reading a lot of articles I still can't do that.

If use music instead of sdcard everything works fine.

Permissions in manifest:

...
    "permissions" : {
        "device-storage:music"  : {
            "description" : "Music",
            "access"      : "readonly"
        },
        "device-storage:sdcard" : {
            "description" : "SDCard",
            "access"      : "readonly"
        },
        "storage"               : {
            "description" : "Storage"
        }
    },
...

[jryans]

The SD card doesn't have very nice support in the simulator at the moment.

Read this bug to follow the current state. If you create the fake-sdcard directory that the bug mentions and add some file, does it work then?

[nazar-pc]

Yes, creation of fake-sdcard works! But how to enumerate directories? I need basic natural features to work with file system.

[jryans]

The docs I can find about the Device Storage API suggests to me that it does not support nested directories, only a flat list of files per storage area. However, I am not sure. Try the #openwebapps room on Mozilla IRC, or the dev-webapps mailing list for more info.