Zoom By Ironex

Lightweight (8 Kb) ES5 javascript plugin without any dependencies, compatible with desktop and mobile devices.

Supports doubleclick, mousemove, mousewheel, doubletap, touchmove and pinch events.

Demo

https://zoom.by-ironex.com

Installation

- Option 1
- yarn add zoom-by-ironex
- include it in your scripts `` import { zoom } from "zoom-by-ironex"; `
- Option 2
- Add to the bottom of html

Whole script is just a single function called "zoom".

How To Use

HTML

`



`

CSS (Optional)

`
.zoom-transition{ // Transition class name can be renamed in settings
transition: -moz-transform ease 200ms;
transition: -ms-transform ease 200ms;
transition: -o-transform ease 200ms;
transition: -webkit-transform ease 200ms;
transition: transform ease 200ms;
}
`

JS

`
zoom();
`

Settings

Example call with all possible settings

`
zoom({
active: "zoom-active", // Class added to container when it is zoomed
transition: "zoom-transition", // Class added to images when they are being animated, class is removed after animation is finished
visible: "visible" // Class added to images after they are loaded,
zoom: "zoom" // Image container class
}, {
scaleDefault: 2, // Used on doubleclick, doubletap and resize
scaleDifference: 0.5, // Used on wheel zoom
scaleMax: 10, // Maximum zoom
scaleMin: 1, // Minimum zoom
scrollDisable: true, // Disable page scrolling when zooming an image
transitionDuration: 200, // This should correspond with zoom-transition transition duration
doubleclickDelay: 300 // // Delay between clicks - used when scripts decides if user performed doubleclick or not
}, (function ($container, zoomed) {
console.log(zoomed); // Callback, gets triggered whenever active class is added/removed from container, value of zoomed is true or false
}));
``

Supported Events

- doubleclick
- mousemove
- mousewheel
- doubletap
- touchmove
- pinch

Additional Info

Plugin checks if image container (zoom) exists on window.load and executes for each element with image container class. If there is no element with specified class present, then it stops.
- It means, that there is no need to check if image container (zoom) exists before executing the zoom function