- From: Ted Mielczarek <luser_whatwg@perilith.com>
- Date: Thu, 26 Aug 2004 08:10:28 -0500
While working on a javscript tool, I needed a way to get and set the caret position in a textbox. This is the code I wound up using, with branches for Mozilla and IE, and fallback behavior (that only somewhat works) for other browsers. In both of these functions 'inp' is a HTMLElement of <input type="text">. function getcaretpos(inp) { // for mozilla if(inp.selectionEnd) return inp.selectionEnd; // for IE if(inp.createTextRange) { var docrange = document.selection.createRange(); var inprange = inp.createTextRange(); inprange.setEndPoint('EndToStart', docrange); return inprange.text.length; } return inp.value.length; // other browsers don't provide a method that I know of } function setselectionto(inp,pos) { // for mozilla if(inp.selectionStart) { inp.selectionStart = inp.selectionEnd = pos; } // for IE else if(inp.createTextRange) { var docrange = document.selection.createRange(); var inprange = inp.createTextRange(); inprange.move('character',pos); inprange.select(); } // other browsers don't have a method that I know of } Some standard way of getting/setting this information would be useful. As it stands, this code will only work in Mozilla/IE, and with different codepaths for each. -Ted
Received on Thursday, 26 August 2004 06:10:28 UTC