This loads an image and creates a crop area that user can modify. An event is fired with x, y, width, and height as the crop area changes.

$ npm install --save @github/image-crop-element 

<image-cropsrc="/avatar.jpg"></image-crop>

<image-cropsrc="/avatar.jpg" rounded></image-crop>

<image-cropsrc="/avatar.jpg"><imgsrc="spinner.gif" alt="" data-loading-slot/></image-crop>

<image-cropsrc="/avatar.jpg"><inputtype="hidden" data-image-crop-input="x" name="x"><inputtype="hidden" data-image-crop-input="y" name="y"><inputtype="hidden" data-image-crop-input="width" name="width"><inputtype="hidden" data-image-crop-input="height" name="height"></image-crop>

document.addEventListener('image-crop-change',function(event){console.log('Crop area changed.',event.detail.x,event.detail.y,event.detail.width,event.detail.height)})

The elements HTML structure is initialized in a Shadow DOM, so it is impossible to apply CSS to it. If you need to change the element's default style for any reason, you should open up a new issue (or a pull request!), describing your use case, and we'll work with you on solving the problem.

Browsers without native custom element support require a polyfill. Legacy browsers require various other polyfills. See examples/index.html for details.

• Chrome
• Firefox
• Safari
• Microsoft Edge