Method toggleIcon

src/content-scripts/extractFrame.js:132–137

(callback)

  }

  toggleIcon(callback) {
    if (callback) {
      this.eFrame.addEventListener('transitionend', callback, {once: true});
    }
    this.eFrame.classList.toggle('m-open');
  }

  setFrameDim() {
    const {width, height} = this.pgpRange.getBoundingClientRect();