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image-crop-element - Vaadin Add-on Directory

A custom element for cropping a square image. Returns x, y, width, and height. image-crop-element - Vaadin Add-on Directory
# <image-crop-element> 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. ## Installation ``` $ npm install --save @github/image-crop-element ``` ## Usage ### Plain ```html ``` ### With loading state ```html ``` ### With autoupdate inputs ```html ``` ### Listen to the change event ```javascript document.addEventListener('image-crop-change', function (event){ console.log( 'Crop area changed.', event.detail.x, event.detail.y, event.detail.width, event.detail.height ) }) ``` ## Browser support Browsers without native [custom element support][support] require a [polyfill][]. Legacy browsers require various other polyfills. See [`examples/index.html`][example] for details. [example]: https://github.com/github/image-crop-element/blob/57080ad88d26e05b42fa10a95470da8035f53967/examples/polyfill.html#L17-L22 - Chrome - Firefox - Safari - Microsoft Edge [support]: https://caniuse.com/#feat=custom-elementsv1 [polyfill]: https://github.com/webcomponents/custom-elements