PinchZoom is a Javascript library providing multi-touch gestures for zooming and dragging on any DOM element.
- No dependencies, built with vanilla JS.
- A modern browser (ECMA 5 support, http://caniuse.com/use-strict).
let el = document.querySelector('#my-id');
let pz = new PinchZoom(el, options);
tapZoomFactor: Zoom factor that a double tap zooms to. (default 2)
zoomOutFactor: Resizes to original size when zoom factor is below this value. (default 1.3)
animationDuration: Animation duration in milliseconds. (default 300)
maxZoom: Maximum zoom factor. (default 4)
minZoom: Minimum zoom factor. (default 0.5)
lockDragAxis: Lock panning of the element to a single axis. (default false)
Pinchzoom emits some custom events you can listen to:
pz_zoomstart Started to zoom
pz_zoomend Stopped zooming
pz_dragstart Started to drag the element
pz_dragend Stopped to drag the element
pz_doubletap Resetting the zoom with double-tab
let pz = new PinchZoom(myElement);
pz.enable(); // Enables all gesture capturing (is enabled by default)
pz.disable(); // Disables all gesture capturing- If you have issues with invisible images, make sure that the image isn't absolutely positioned. In some cases that will cause trouble.
Licensed under the MIT License.