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Summary
The width read-only property of the PointerEvent interface represents the width of the pointer's contact geometry along the x-axis, measured in CSS pixels. Depending on the source of the pointer device (such as a finger), for a given pointer, each event may produce a different value.
If the input hardware cannot report the contact geometry to the browser, the width is 1.
Syntax
var contactWidth = pointerEvent.width;
Return value
contactWidth- The width of the event's contact area (in CSS pixels).
Example
This example illustrates using the PointerEvent interface's width and width properties to calculate the contact area.
target.addEventListener("pointerdown", function(ev) {
// Calculate the contact area
var area = ev.width * ev.height;
}, false);
Specifications
| Specification | Status | Comment |
|---|---|---|
| Pointer Events – Level 2 The definition of 'width' in that specification. |
Editor's Draft | Non-stable version. |
| Pointer Events The definition of 'width' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | No support | (Yes) [1] | 10 | No support | No support |
| Feature | Android | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | No support | No support | No support | 10 | No support | No support |
[1] Implementation withdrawn. See bug 1166347.