I have this simple HTML as an example:
text text text
text text text
text text
Based on Tim Down's answer, but it checks for the last known "good" text row. It places the cursor at the very end.
Furthermore, I could also recursively/iteratively check the last child of each consecutive last child to find the absolute last "good" text node in the DOM.
function onClickHandler() {
setCaret(document.getElementById("editable"));
}
function setCaret(el) {
let range = document.createRange(),
sel = window.getSelection(),
lastKnownIndex = -1;
for (let i = 0; i < el.childNodes.length; i++) {
if (isTextNodeAndContentNoEmpty(el.childNodes[i])) {
lastKnownIndex = i;
}
}
if (lastKnownIndex === -1) {
throw new Error('Could not find valid text content');
}
let row = el.childNodes[lastKnownIndex],
col = row.textContent.length;
range.setStart(row, col);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
el.focus();
}
function isTextNodeAndContentNoEmpty(node) {
return node.nodeType == Node.TEXT_NODE && node.textContent.trim().length > 0
}
text text text
text text text
text text text