zoomable-div

forked from https://github.com/aarondail/react-zoomable-ui

React Zoomable UI

Make your HTML elements and React components zoomable, and build interesting zoomable UIs. Supports zooming and panning via touch and mouse interactions.

Features

• Make your whole page zoomable and pan-able, or just part of it.
• The zoomable space can be as large as you want, or bounded (x, y, and/or zoom).
• Has events for different interactions, letting you control how the library responds to mouse clicks and touches.
• Includes a basic Pressable component that can distinguish between panning, tapping, and long-tapping. It can also be used to implement more advanced interactions like dragging.
• Has TypeScript types.
• Supports animations.
• Technically can be used w/o React.

Browser Support

Tested and works on:

• Desktop Chrome, Firefox, Safari.
• Mobile Chrome, and Mobile Safari.
• Tested w/ a mouse, but not touch, on pre-Chromium Edge.

Not tested on, but ideally should work:

• post-Chromium Edge, mouse and touch
• pre-Chromium Edge, touch

Not supported:

• IE 11 and below
• Anything else not mentioned

Please send me issues if you run into problems.

Examples

https://aarondail.github.io/react-zoomable-ui/example/

Basic Usage

Making your entire page zoomable

html,
body,
#root {
  height: 100%;
  width: 100%;
  overflow: hidden;
}
#root {
  position: relative;
}

import React from 'react';
import ReactDOM from 'react-dom';
import { Space } from 'react-zoomable-ui';

function App() {
  return (
    <Space>
      <h1>Howdy</h1>
      <div>Try panning an zooming</div>
    </Space>
  );
}

ReactDOM.render(<App />, document.getElementById('root'));

Making one area zoomable

import { Space } from 'react-zoomable-ui';

import mountain from "./mountain.jpg";

const imageWidth = 1280;
const imageHeight = 960;

function ZoomableImage() {
  return (
    <div style={{ width: 300, height: 300, position: "relative" }}>
      <Space
        style={{ border: "solid 1px black" }}
        onCreate={viewPort => {
          viewPort.setBounds({ x: [0, imageWidth], y: [0, imageHeight] });
          viewPort.camera.centerFitAreaIntoView({
            left: 0,
            top: 0,
            width: imageWidth,
            height: imageHeight
          });
        }}
      >
        <img src={mountain} width={imageWidth} height={imageHeight} alt="A Mountain" />
      </Space>
    </div>

Documentation

• Guide
• API

License

MIT

zoomable-div