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.

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]