React
Event System Edit on GitHub
SyntheticEvent #
Your event handlers will be passed instances of SyntheticEvent, a cross-browser wrapper around the browser's native event. It has the same interface as the browser's native event, including stopPropagation() and preventDefault(), except the events work identically across all browsers.
If you find that you need the underlying browser event for some reason, simply use the nativeEvent attribute to get it. Every SyntheticEvent object has the following attributes:
boolean bubbles
boolean cancelable
DOMEventTarget currentTarget
boolean defaultPrevented
Number eventPhase
boolean isTrusted
DOMEvent nativeEvent
void preventDefault()
void stopPropagation()
DOMEventTarget target
Date timeStamp
String type
Supported Events #
React normalizes events so that they have consistent properties across different browsers.
Clipboard Events #
Event names:
onCopy onCut onPaste
Properties:
DOMDataTransfer clipboardData
Keyboard Events #
Event names:
onKeyDown onKeyPress onKeyUp
Properties:
boolean altKey
Number charCode
boolean ctrlKey
function getModifierState(key)
String key
Number keyCode
String locale
Number location
boolean metaKey
boolean repeat
boolean shiftKey
Number which
Focus Events #
Event names:
onFocus onBlur
Properties:
DOMEventTarget relatedTarget
Form Events #
Event names:
onChange onInput onSubmit
For more information about the onChange event, see Forms.
Mouse Events #
Event names:
onClick onDoubleClick onDrag onDragEnd onDragEnter onDragExit onDragLeave
onDragOver onDragStart onDrop onMouseDown onMouseEnter onMouseLeave
onMouseMove onMouseOut onMouseOver onMouseUp
Properties:
boolean altKey
Number button
Number buttons
Number clientX
Number clientY
boolean ctrlKey
function getModifierState(key)
boolean metaKey
Number pageX
Number pageY
DOMEventTarget relatedTarget
Number screenX
Number screenY
boolean shiftKey
Touch events #
To enable touch events, call React.initializeTouchEvents(true) before
rendering any component.
Event names:
onTouchCancel onTouchEnd onTouchMove onTouchStart
Properties:
boolean altKey
DOMTouchList changedTouches
boolean ctrlKey
function getModifierState(key)
boolean metaKey
boolean shiftKey
DOMTouchList targetTouches
DOMTouchList touches
UI Events #
Event names:
onScroll
Properties:
Number detail
DOMAbstractView view
Wheel Events #
Event names:
onWheel
Properties:
Number deltaMode
Number deltaX
Number deltaY
Number deltaZ