Misago/frontend/src/components/editor/actions/action.js

import React from "react"

export default class extends React.Component {
  onClick = () => {
    this.props.replaceSelection(this.props.execAction)
  }

  render() {
    return (
      <button
        className={"btn btn-icon " + this.props.className}
        disabled={this.props.disabled}
        onClick={this.onClick}
        title={this.props.title}
        type="button"
      >
        {this.props.children}
      </button>
    )
  }
}