**[ This description is mirrored from README.md at [github.com/mlisook/resize-aware](https://github.com//mlisook/resize-aware/blob/2.0.1/README.md) on 2019-05-22 ]** # resize-aware [](https://vaadin.com/directory/component/mlisookresize-aware) [](https://vaadin.com/directory/component/mlisookresize-aware) Container element that is aware of, and notifies of, changes to its size. ## Why Sometimes you may need to take some action when the rendered size of an element changes. This element provides the something like the window resize event but for an individual element. There are many reasons an element's size could change - CSS or class changes, content changes, content of other elements affecting the flow, viewport changes, etc. This element detects the size changes without polling or loops. This element works in Polymer 2 and Polymer 1 projects. **For Polymer 3, see [plastic-resize-aware](https://github.com/mlisook/plastic-resize-aware).** This custom control uses code from [procurios/ResizeSensor](https://github.com/procurios/ResizeSensor) modified to work with Polymer in both Shadow and Shady DOM. ## Install For Polymer 2.0 projects, install the 2.0 native, class based version: `bower install --save resize-aware` For Polymer 1.x projects, install the hybrid version: `bower install --save resize-aware#^1.9.1` For Polymer 3.0 projects, use [plastic-resize-aware](https://github.com/mlisook/plastic-resize-aware), and install via: `npm install --save plastic-resize-aware` ## How to Use ```html ``` ```html

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``` or ```html any content that could have been in a div ``` ```javascript this.$$('resize-aware').addEventListener('element-resize', this.someHandlerName); ``` ## Change Notification You can either include a handler in the markup: ```html stuff to watch ``` or listen for the event: ```javascript this.$$('resize-aware').addEventListener('element-resize', this.someHandlerName); ``` ## License MIT license