Warning: Removed in Firefox 65.
The zoom()
method of the HTMLIFrameElement
interface changes the zoom factor of the browser <iframe>
's content. This is particularly useful for zooming in/out on non-touch-enabled devices.
Syntax
var instanceOfDOMRequest = instanceOfHTMLIframeElement.zoom(zoomFactor);
Returns
Void.
Parameters
zoomFactor
- A unitless number value representing the amount to zoom in or out. It acts like a percentage, so for example 1.1 would zoom in by 10%, whereas 0.9 would zoom out by 10%.
Examples
var browser = document.querySelector('iframe');
var zoomFactor = 1;
zoomIn.addEventListener('touchend',function() {
zoomFactor += 0.1;
browser.zoom(zoomFactor);
});
zoomOut.addEventListener('touchend',function() {
zoomFactor -= 0.1;
browser.zoom(zoomFactor);
});
Specification
Not part of any specification.
Browser compatibility
Supported since Firefox 47, in chrome code only. Removed completely in Firefox 65.
Unlikely ever to be supported in other browsers.
See also
Document Tags and Contributors
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Contributors to this page:
chrisdavidmills,
fscholz
Last updated by:
chrisdavidmills,