touchstart
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
O evento touchstart é acionado quando o ponteiro de toque (dedo ou caneta) é aplicado sobre à superfície de toque da tela (toque sobre a tela no elemento alvo).
Info Geral
- Especificações
- Interface
TouchEvent- Bubbles
-
Sim
- Cancelável
-
Sim
- Alvo
-
Documento, Elemento
- Ação Padrão
-
undefined (indefinido)
Propriedades
| Property | Type | Description |
|---|---|---|
target Somente leitura |
EventTarget | The event target (the topmost target in the DOM tree). |
type Somente leitura |
DOMString | The type of event. |
bubbles Somente leitura |
Boolean | Whether the event normally bubbles or not. |
cancelable Somente leitura |
Boolean | Whether the event is cancellable or not. |
view Somente leitura |
WindowProxy | document.defaultView (window of the document) |
detail Somente leitura |
long (float) | 0. |
touches Somente leitura |
TouchList | A list of Touches for every point of contact currently touching the surface. |
targetTouches Somente leitura |
TouchList | A list of Touches for every point of contact that is touching the surface and started on the element that is the target of the current event. |
changedTouches Somente leitura |
TouchList | A list of Touches for every point of contact which contributed to the event. For the touchstart event this must be a list of the touch points that just became active with the current event. For the touchmove event this must be a list of the touch points that have moved since the last event. For the touchend and touchcancel events this must be a list of the touch points that have just been removed from the surface. |
ctrlKey Somente leitura |
boolean | true if the control key was down when the event was fired. false otherwise. |
shiftKey Somente leitura |
boolean | true if the shift key was down when the event was fired. false otherwise. |
altKey Somente leitura |
boolean | true if the alt key was down when the event was fired. false otherwise. |
metaKey Somente leitura |
boolean | true if the meta key was down when the event was fired. false otherwise. |
Exemplos
Os códigos de exemplos para este evento estão disponíveis nesta página dedicada: Touch events.
Especificações
| Specification |
|---|
| Touch Events # event-touchstart |
| Touch Events # dom-globaleventhandlers-ontouchstart |
Compatibilidade com navegadores
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