Detecting dropped text in an input field?

Question

I'm using dynamic labels that need to detect when input goes into a text input.

I detect keydown events and I also detect paste events, for when the user pastes in text.

However, I still do not detect text that is dragged and dropped in.

I looked here and it looks like I should detect drop events.

Is this correct. Should I set an event listener for drop events? How can I make sure it is text that is dropped and not something else?

Here is how I do my keypresses and pastes

input_element.addEventListener("paste", function () {
    label_element.style.opacity = 0;
}, false);
input_element.addEventListener("keypress", function () {
    label_element.style.opacity = 0;
}, false);

How do I detect drops of text?

One guess:

input_element.addEventListener("drop", function () {

    // verify it is text that is dropped

    label_element.style.opacity = 0;
}, false);

Answer 1

Close:

input_element.addEventListener("dragdrop", function () {

// verify it is text that is dropped

    label_element.style.opacity = 0;
}, false);