Add content at cursor position with Froala editor

Question

I have a textarea field and a second field select.
I click on a certain place of mine textarea, and then choose a
options in my select field, and I want that option that is chosen(any text), appear in the place I last clicked on in my textarea.
Obs. My application is in Ruby on Rails and in my textarea, I use the Froala Editor

Answer 1

Place an onclick in the textarea to call a function to pick up the cursor position and save to a global variable.

Use the code:

 document.getElementById("IdTextarea").selectionStart;

Then create a function that takes the selected select value with onchange and Selected index (or the way you prefer) and enter the value at the previously collected position.

conteudo = document.getElementById("IdTextarea").value;             
pt1 = conteudo.substring(0,pos); 
pt2 = conteudo.substring(pos);
document.getElementById("IdTextarea").value = pt1 + selecionado + pt2;

where the pos variable is equal to the value of the cursor position you collected in the other function.