text: class Tooltip {
      constructor(quill, boundsContainer) {
          this.quill = quill;
          this.boundsContainer = boundsContainer || document.body;
          this.root = quill.addContainer('ql-tooltip');
          this.root.innerHTML = this.constructor.TEMPLATE;
          let offset = parseInt(window.getComputedStyle(this.root).marginTop);
          this.quill.root.addEventListener('scroll', () => {
              this.root.style.marginTop = (-1 * this.quill.root.scrollTop) + offset + 'px';
              this.checkBounds();
          });
          this.hide();
      }
  
      checkBounds() {
          this.root.classList.toggle('ql-out-top', this.root.offsetTop <= 0);
          this.root.classList.remove('ql-out-bottom');
          this.root.classList.toggle('ql-out-bottom', this.root.offsetTop + this.root.offsetHeight >= this.quill.root.offsetHeight);
      }
  
      hide() {
          this.root.classList.add('ql-hidden');
      }
  
      position(reference) {
          let left = reference.left + reference.width / 2 - this.root.offsetWidth / 2;
          let top = reference.bottom + this.quill.root.scrollTop;
          this.root.style.left = left + 'px';
          this.root.style.top = top + 'px';
          let containerBounds = this.boundsContainer.getBoundingClientRect();
          let rootBounds = this.root.getBoundingClientRect();
          let shift = 0;
          if (rootBounds.right > containerBounds.right) {
              shift = containerBounds.right - rootBounds.right;
              this.root.style.left = (left + shift) + 'px';
          }
          if (rootBounds.left < containerBounds.left) {
              shift = containerBounds.left - rootBounds.left;
              this.root.style.left = (left + shift) + 'px';
          }
          this.checkBounds();
          return shift;
      }
  
      show() {
          this.root.classList.remove('ql-editing');
          this.root.classList.remove('ql-hidden');
      }
  }
  
  
  export default Tooltip;
  