javascript - react - accessing DOM without breaking encapsulation -

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is there cannonical way of going doing following without breaking encapsulation?

import react, { component, proptypes } 'react';  class dashboard extends component {     constructor(props, context) {         super(props, context);          this.setref = ::this.setref;     }     componentdidmount() {         const node = reactdom.finddomnode(this.someref);         const newheight = window.innerheight - node.offsettop - 30;         node.style.maxheight = `${newheight}px`;     }      render() {         return (             <div id="some-element-id" ref={this.setref}>             </div>         );     }      setref(ref) {         this.someref= ref;     } }

reactdom.finddomnode seems suggested way of going this, still breaks encapsulation , documentation has big red flag extent.

you should use component "state" set style property of react element, access "real" dom node calculate height , update state, re-rendering component. react component has same information real dom node, shouldn't breaking encapsulation.

using vanilla js provide example:

var component = react.createclass({     getinitialstate: function(){     return {         style: {},     }   },   componentdidmount: function(){     var node = reactdom.finddomnode(this);     var newheight = window.innerheight - node.offsettop - 30;     this.setstate({style: {backgroundcolor: '#bbb', height: newheight.tostring() + 'px' }});   },   render: function(){     return react.createelement('div', {style: this.state.style}, 'height: ' + this.state.style.height);   }, });

you can see running in this fiddle.


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