DataTransfer.mozTypesAt()

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The DataTransfer.mozTypesAt() method returns a list of the format types that are stored for an item at the specified index. If the index is not in the range from 0 to the number of items minus one, an empty string list is returned.

Note: This method is Gecko-specific.

Syntax

nsIVariant dataTransfer.mozTypesAt(index);

Arguments

index
A unsigned long that is the index of the data for which to retrieve the types.

Return value

nsIVariant
A list of data formats (which are strings). If the index is not in the range from 0 to the number of items minus one, an empty string list is returned.

Example

This example shows the use of the mozTypesAt() method in a drop event handler.

function drop_handler(event)
{
  var dt = event.dataTransfer;
  var count = dt.mozItemCount;
  output("Items: " + count + "\n");

  for (var i = 0; i < count; i++) {
    output(" Item " + i + ":\n");
    var types = dt.mozTypesAt(i);
    for (var t = 0; t < types.length; t++) {
      output("  " + types[t] + ": ");
      try {
        var data = dt.mozGetDataAt(types[t], i);
        output("(" + (typeof data) + ") : <" + data + " >\n");
      } catch (ex) {
        output("<>\n");
        dump(ex);
      }
    }
  }
}

Specifications

This method is not defined in any Web standard.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
No support No support (Yes) No support No support No support
Feature Android Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support No support No support No support ? ? No support No support No support

[1]Partial support refers to not supporting .setDragImage [CanIUse.com]

See also

Document Tags and Contributors

 Contributors to this page: rolfedh, AFBarstow
 Last updated by: rolfedh,