The caretPositionFromPoint()
method of the Document
interface returns a CaretPosition
object, containing the DOM node, along with the caret and caret's character offset within that node.
The caretPositionFromPoint()
method of the Document
interface returns a CaretPosition
object, containing the DOM node, along with the caret and caret's character offset within that node.
js
caretPositionFromPoint(x, y)
A CaretPosition
object.
Click anywhere in the Demo paragraph below to insert a line break at the point where you click. The code for it is below the demo.
The code below first checks for document.caretPositionFromPoint
support, but if the browser doesn't support that, the code then checks for document.caretRangeFromPoint
, and uses that instead.
js
function insertBreakAtPoint(e) { let range; let textNode; let offset; if (document.caretPositionFromPoint) { range = document.caretPositionFromPoint(e.clientX, e.clientY); textNode = range.offsetNode; offset = range.offset; } else if (document.caretRangeFromPoint) { // Use WebKit-proprietary fallback method range = document.caretRangeFromPoint(e.clientX, e.clientY); textNode = range.startContainer; offset = range.startOffset; } else { // Neither method is supported, do nothing return; } // Only split TEXT_NODEs if (textNode?.nodeType === 3) { let replacement = textNode.splitText(offset); let br = document.createElement("br"); textNode.parentNode.insertBefore(br, replacement); } } let paragraphs = document.getElementsByTagName("p"); for (const paragraph of paragraphs) { paragraph.addEventListener("click", insertBreakAtPoint, false); }
html
<p> Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. </p>
Specification |
---|
CSSOM View Module # dom-document-caretpositionfrompoint |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
caretPositionFromPoint |
No | No | 20 | No | No | No | No | No | 20 | No | No | No |
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https://developer.mozilla.org/en-US/docs/Web/API/Document/caretPositionFromPoint