Nos bénévoles n'ont pas encore traduit cet article en Français. Inscrivez-vous et aidez-nous à réaliser cette tâche !
Vous pouvez également lire cet article en English (US).

Summary

Returns the X coordinate of the touch point relative to the screen, not including any scroll offset.

Syntax

var x = touchItem.screenX;

Return value

x
The X coordinate of the touch point relative to the screen, not including any scroll offset.

Example

This example illustrates how to access the Touch object's Touch.screenX and Touch.screenY properties. The Touch.screenX property is the horizontal (x) coordinate of a touch point relative to the screen in CSS pixels. The Touch.screenY property is the vertical coordinate of a touch point relative to the screen in CSS pixels.

In following simple code snippet, we assume the user initiates multiple touch contacts on an element with an id of source and then releases contacts with the surface. When the touchstart event handler is invoked, each touch point's Touch.screenX and Touch.screenY coordinates are accessed.

// Register a touchstart listeners for the 'source' element
var src = document.getElementById("source");

src.addEventListener('touchstart', function(e) {
  // Iterate through the touch points and log each screenX/Y coordinate.
  // The unit of each coordinate is CSS pixels.
  var i;
  for (i=0; i < e.touches.length; i++) {
    console.log("touchpoint[" + i + "].screenX = " + e.touches[i].screenX);
    console.log("touchpoint[" + i + "].screenY = " + e.touches[i].screenY);
  }
}, false);

Specifications

Specification Status Comment
Touch Events – Level 2 Draft Non-stable version.
Touch Events Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
screenXChrome Full support 22Edge Full support YesFirefox Full support 52
Notes
Full support 52
Notes
Notes Touch events support has been fixed and reenabled in Windows desktop platforms.
No support 18 — 24
Notes
Notes Web compatibility issues seen in bug 888304.
IE No support NoOpera Full support YesSafari No support NoWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 6Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support
No support  
No support
See implementation notes.
See implementation notes.

Étiquettes et contributeurs liés au document

Étiquettes : 
Dernière mise à jour par : mdnwebdocs-bot,