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VistasHow to insert a HTML tag into the same <div> tag in a single keypress event? (in JQuery or Javascript)
I want to insert a HTML tag in a keypress event. I am new to JQuery and Javascript, and I've also searched for this thing, but got no answer for this thing
I know about the append and selectionStart methods but i want to insert at the position of text cursor
For Eg., if i type the letter 'a', it should send <img src='a.png'> to the div, at the cursor position
$("#textcontent").contentEditable = "true";
$(document).ready(function(){
$("#textcontent").keydown(function(event){
$("#textcontent").append("<img src='" + event.key +".png'>");
But, This (JS append code at the top) is not i want, but i want to insert a HTML tag at the current text cursor position
My HTML:
<div class="textcontent" contenteditable="true">
<img src='h.png'>
... // more image tags goes here
</div>
Can anybody pls give some answers for this problem?
·
Juan Pablo Isaza
2 Respuestas
Responde la pregunta0
Check this out:
$("#textcontent").keydown(function(event) {
if (event.key === "Backspace") return; // allow backspace to clear image
if (!/^[a-zA-Z0-9]{1,1}$/.test(event.key)) return false; // just allow a-z and 0-9
const position = document.getSelection().anchorOffset; // get position
const newElement = $(`<img alt="${event.key}" src="https://eu.ui-avatars.com/api/?name=${event.key}">`); // create new element
const element = [...$("#textcontent img")][position]; // get previous element on index "position"
if (element)
textcontent.insertBefore(newElement.get(0), element); // prepend element
else $("#textcontent").append(newElement); // append element
/* OPTIONAL! place caret at the end */
textcontent.focus();
const range = document.createRange();
range.selectNodeContents(textcontent);
range.collapse(false);
const selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
/**/
return false; // cancel event to avoid text inside div
});#textcontent {
border: 2px solid gray;
padding: 10px;
border-radius: 10px;
}
img {
margin-left: 7px;
width: 30px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="textcontent" contenteditable="true"></div>
·
Juan Pablo Isaza
Denunciar
0
I've made some changes on @jns's code and this is what i've came up with...
Added the function to use lowercase characters, space and also for some other symbols...
Thank you @jns!
$("#textcontent").keydown(function(event) {
if ((event.key === "Backspace")||(event.ctrlKey)||(event.altKey)||(event.keyCode == 46)||(event.which>=33 && event.which <=40)) return; // Allow other keys to do their normal functions (not for Enter key)
if (!/^[a-zA-Z0-9\/`~=\[\]'\\; ]$/.test(event.key)) return false; // Just allows A-Z, a-z, 0-9, and also characters like `~=[];'\/
var letter_name = event.key;
var uppercase = "false";
if (event.key === ' ' || event.key === 'Spacebar') // To add spacebar input feature ('Spacebar' for IE9 and Firefox < 37)
letter_name = '';
else
letter_name = event.key;
if (/^[A-Z]$/.test(letter_name)) // To chech whether its an uppercase letter
uppercase = "true";
else
uppercase = "false";
const position = document.getSelection().anchorOffset; // get position
const newElement = $(`<img alt="${letter_name}" src="https://eu.ui-avatars.com/api/?uppercase=${uppercase}&name=${letter_name}">`); // create new element
const element = [...$("#textcontent img")][position]; // get previous element on index "position"
if (element)
textcontent.insertBefore(newElement.get(0), element); // prepend element
else $("#textcontent").append(newElement); // append element
/* OPTIONAL! place caret at the end */
textcontent.focus();
const range = document.createRange();
range.selectNodeContents(textcontent);
range.collapse(false);
const selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
/**/
return false; // cancel event to avoid text inside div
});#textcontent {
border: 2px solid gray;
padding: 10px;
border-radius: 10px;
}
img {
margin-left: 7px;
width: 30px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="textcontent" contenteditable="true"></div>
·
Juan Pablo Isaza
Denunciar
Responde la pregunta