---
tags: zeta-dom
---

Zeta DOM » [Events](/UoWLMJmFREyF6wtAwfN7xw)

# Event source

When binding a UI event through `zeta.dom.on`, the event argument also contains a property `source`, indicating what triggered the UI event.

Possible source values are:

| Source | Description |
| -------- | ----------- |
| script | |
| mouse | |
| keyboard | |
| touch | |
| input | |
| cut | |
| copy | |
| paste | |
| drop | |

It is particularly useful for `textInput` and `click` event because they have multiple physical source.

zeta.dom.on('click', (e) {
    if (e.source === 'touch') {
        // do something
    } else {
        // do something different
    }
});

### `ZetaEventSource`
### `getEventSource`
### `prepEventSource`
### `setLastEventSource`