The Touch.pageY read-only property returns the Y coordinate of the touch point relative to the viewport, including any scroll offset.
Syntax
touchItem.pageY;
Return value
A long value that representes the Y coordinate of the touch point relative to the viewport, including any scroll offset.
Example
This example illustrates how to access the Touch object's Touch.pageX and Touch.pageY properties. The Touch.pageX property is the horizontal coordinate of a touch point relative to the viewport (in CSS pixels), including any scroll offset. The Touch.pageY property is the vertical coordinate of a touch point relative to the viewport (in CSS pixels), including any scroll offset.
In following simple code snippet, we assume the user initiates one or more touch contacts on the source element, moves the touch points and then releases all contacts with the surface. When the touchmove event handler is invoked, each touch point's Touch.pageX and Touch.pageY coordinates are accessed via the event's TouchEvent.changedTouches list.
// Register a touchmove listeners for the 'source' element
var src = document.getElementById("source");
src.addEventListener('touchmove', function(e) {
// Iterate through the touch points that have moved and log each
// of the pageX/Y coordinates. The unit of each coordinate is CSS pixels.
var i;
for (i=0; i < e.changedTouches.length; i++) {
console.log("touchpoint[" + i + "].pageX = " + e.changedTouches[i].pageX);
console.log("touchpoint[" + i + "].pageY = " + e.changedTouches[i].pageY);
}
}, false);
Specifications
| Specification | Status | Comment |
|---|---|---|
| Touch Events – Level 2 | Editor's Draft | No change from last version. |
| Touch Events | Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 22.0 | (Yes) | 18.0 (18.0)[1] 52.0 (52.0)[2] |
No support | No support | No support |
| Feature | Android | Android Webview | Chrome for Android | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | 6.0 (6.0) | (Yes) | 11 | (Yes) | (Yes) |
[1] Touch events were implemented in Gecko 18.0, but removed again in 24.0 (Firefox 24.0 / Thunderbird 24.0 / SeaMonkey 2.21) on the desktop version of Firefox due to web compatibility issues (bug 888304).
[2] As of Gecko 52.0, touch events support has been fixed and reenabled in Windows desktop platforms.