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Paste fix for contenteditable

I'm running a script to sanitize pasted text in a div with contenteditable.
It's working pretty good, but in FF the line-breaks are removed if the text is copied to the same or between the divs.
Any solution for that?If I paste text from a different source the line-breaks are intact.
I'm also open to different solutions than the one below.
// Paste fix for contenteditable
$(document).on('paste', '[contenteditable]', function (e) {
e.preventDefault();
if (window.clipboardData) {
content = window.clipboardData.getData('Text');
if (window.getSelection) {
var selObj = window.getSelection();
var selRange = selObj.getRangeAt(0);
selRange.deleteContents();
selRange.insertNode(document.createTextNode(content));
}
} else if (e.originalEvent.clipboardData) {
content = (e.originalEvent || e).clipboardData.getData('text/plain');
document.execCommand('insertText', false, content);
}
});
div {
white-space: pre-wrap;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div contenteditable="true">Copy
and
paste
this
back in the same box or the one below. Where do they line-breaks go in FF?</div>
<div contenteditable="true">Copy
and
paste
this
back in the same box or the one above. Where do they line-breaks go FF?</div>

As promised, here is a working solution of such implementation discussed in question's comments.
While working with Selection and Range API (https://developer.mozilla.org/en-US/docs/Web/API/Range), i found that Range object has a toString() method and i thought to test it to see if newlines were trimmed here, before, or later.
Fortunatly, i found out that the toString() method in FF Range object doesn't trim out newlines.
According to that, here is my code and fiddle to override default copy function, overwriting (on copy event) what's inside the clipboard.
$(document).on('copy', '[contenteditable]', function (e) {
e = e.originalEvent;
var selectedText = window.getSelection();
console.log("original copied text\n--------\n", selectedText.toString());
var range = selectedText.getRangeAt(0);
var selectedTextReplacement = range.toString()
console.log("replacement in clipboard\n--------\n", selectedTextReplacement);
e.clipboardData.setData('text/plain', selectedTextReplacement);
e.preventDefault(); // default behaviour is to copy any selected text
});
// Paste fix for contenteditable
$(document).on('paste', '[contenteditable]', function (e) {
e.preventDefault();
if (window.clipboardData) {
content = window.clipboardData.getData('Text');
if (window.getSelection) {
var selObj = window.getSelection();
var selRange = selObj.getRangeAt(0);
selRange.deleteContents();
selRange.insertNode(document.createTextNode(content));
}
} else if (e.originalEvent.clipboardData) {
content = (e.originalEvent || e).clipboardData.getData('text/plain');
document.execCommand('insertText', false, content);
}
});
div {
white-space: pre-wrap;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div contenteditable="true">Copy
and
paste
this
back in the same box or the one below. Where do they line-breaks go in FF?</div>
<div contenteditable="true">Copy
and
paste
this
back in the same box or the one above. Where do they line-breaks go FF?</div>
I also made rough test with edge and chrome, and that override "doesn't mess them up", so maybe you can keep it to have control over what they are doing when something is copied.
At the end of all, i still have a question that keeps yelling in my mind and it is:
Why use contenteditable div instead of textarea if you don't want html into your frontend element?

Wrap an html tag after clicking a toolbar button using js or jquery

I want to do something similar to what this website and wordpress does. When a user highlights text on the screen, then clicks a button on the toolbar it will wrap an html tag around the text. In jquery I would probably use the .wrap class but how would I detect if the user highlighted something.
For example, when the user writes Hello World then clicks on the bold button it will say <b>Hello World</b>

This mainly requires (1) accessing the selectionStart and selectionEnd properties of the input/textarea element and (2) replacing the substring of the value property across that range with the same text, but wrapped in the desired start and end tags. Also, I think it makes sense to reselect the replaced text, which requires a couple of calls to select() and setSelectionRange(). Also, if there's no selection (meaning start equals end) it's probably a good idea to do nothing at all.
window.selWrapBold = function(id) { selWrap(id,'<b>','</b>'); };
window.selWrapItalic = function(id) { selWrap(id,'<i>','</i>'); };
window.selWrap = function(id,startTag,endTag) {
let elem = document.getElementById(id);
let start = elem.selectionStart;
let end = elem.selectionEnd;
let sel = elem.value.substring(start,end);
if (sel==='') return;
let replace = startTag+sel+endTag;
elem.value = elem.value.substring(0,start)+replace+elem.value.substring(end);
elem.select();
elem.setSelectionRange(start,start+replace.length);
} // end selWrap()
<input type="button" value="bold" onclick="selWrapBold('ta1');"/>
<input type="button" value="italic" onclick="selWrapItalic('ta1');"/>
<br/>
<textarea id="ta1"></textarea>

Get the text of the html element which is wrapping the text, then add as html the text embedded in the <b> tag.
See jQuery DOM Manipulation for tutorials.

I used this question to get the selected text. And this question to
get the element with selected text in it. I combined them in a single function.
function updateHighlightedText() {
var text = "";
if (window.getSelection) {
text = window.getSelection().toString();
} else if (document.selection && document.selection.type != "Control") {
text = document.selection.createRange().text;
}
var node = $(window.getSelection().anchorNode.parentNode); //Get the selected node
node.html(node.text().replace(text, "<b>"+text+"</b>")); //Update the node
}

How to getSelection() within a specific div?

I have a contenteditable div (with id 'editor1') that allows users to input text. There is then a function that allows them to color any highlighted text. My js uses window.getSelection().getRangeAt(0), but the issue with this is that they can highlight words outside of the div and their color will change as well. So far; I've tried:
function red(){
{
var getText = document.getElementById("editor1").innerHTML;
var selection = getText.getSelection().getRangeAt(0);
var selectedText = selection.extractContents();
var span = document.createElement("span");
span.style.color = "red";
span.appendChild(selectedText);
selection.insertNode(span);
}
}
Fiddle: https://jsfiddle.net/xacqzhvq/
As you can see, if I highlight "this will become red as well", I can use the button to make that red too.
How can I only color the highlighted text only within the editor1 div?

You are able to get the node element from the selection using .baseNode. From there you can get the parent node and use that for comparison.
function red(){
// If it's not the element with an id of "foo" stop the function and return
if(window.getSelection().baseNode.parentNode.id != "foo") return;
...
// Highlight if it is our div.
}
In the example below I made the div have an id that you can check to make sure it's that element:
Demo
As #z0mBi3 noted, this will work the first time. But may not work for many highlights (if they happen to get cleared). The <span> elements inside the div create a hierarchy where the div is the parent elements of many span elements. The solution to this would be to take traverse up through the ancestors of the node until you find one with the id of "foo".
Luckily you can use jQuery to do that for you by using their .closest() method:
if($(window.getSelection().baseNode).closest("#foo").attr("id") != "foo") return;
Here is an answer with a native JS implemented method of .closest().

Are you looking for this,
//html
<body>
<p id='editor1'>asdf</p>
<button onclick='red()'>
RED
</button>
</body>
//JavaScript
window.red = function(){
//var getText = document.getElementById("editor1").innerHTML;
var selection = window.getSelection().getRangeAt(0);
var selectedText = selection.extractContents();
var span = document.createElement("span");
span.style.color = "red";
span.appendChild(selectedText);
selection.insertNode(span);
}
Plunker: https://plnkr.co/edit/FSFBADoh83Pp93z1JI3g?p=preview

Try This Code :
function addBold(){
if(window.getSelection().focusNode.parentElement.closest("#editor").id != "editor") return;
const selection = window.getSelection().getRangeAt(0);
let selectedParent = selection.commonAncestorContainer.parentElement;
let mainParent = selectedParent;
if(selectedParent.closest("b"))
{
//Unbold
var text = document.createTextNode(selectedParent.textContent);
mainParent = selectedParent.parentElement;
mainParent.insertBefore(text, selectedParent);
mainParent.removeChild(selectedParent);
mainParent.normalize();
}
else
{
const span = document.createElement("b");
span.appendChild(selection.extractContents());
selection.insertNode(span);
mainParent.normalize();
}
if (window.getSelection) {
if (window.getSelection().empty) { // Chrome
window.getSelection().empty();
} else if (window.getSelection().removeAllRanges) { // Firefox
window.getSelection().removeAllRanges();
}
} else if (document.selection) { // IE?
document.selection.empty();
}
};
<div id="editor" contenteditable="true">
You are the programmers of the future
</div>
<button onclick="addBold()">Bold</button>
I got the code and added my edits from those following answers :
Bold/unbold selected text using Window.getSelection()
getSelection().focusNode inside a specific id doesn't work

How can set new content for selected item with javascript?

suppose to be we have a paragraph with this content " Hi , It's a new question in stackoverflow!"
and when we are selecting something in this paragraph , it's turn to be Red .for example we selected stackoverflow & then it turn to <span class="red">stackoverflow</span>.how can we do this with Javascript?
here is my codes :
var x = {};
x.getSelected = function() {
var t = '';
if (window.getSelection) {
t = window.getSelection();
} else if (document.getSelection) {
t = document.getSelection();
} else if (document.selection) {
t = document.selection.createRange().text;
}
return t;
}
$(document).ready(function() {
var selectedText;
$(document).bind("mouseup", function() {
selectedText = x.getSelected()
if (selectedText !=''){
alert(selectedText);
//Now I wanna set new content for selected item but not working
a=selectedText;
selectedText.html("<span class='red'>"+a+"</span>");
}
});
});
.red {
color : red;
}
<p>suppose to be we have a paragraph with this content " Hi , It's a new question in stackoverflow!" and when we are selecting something in this paragraph , it's turn to be Red .for example we selected stackoverflow & then it turn to .how can we do this with Javascript? </p>

...when we are selecting something in this paragraph , it's turn to be
Red...
You could have a stab at the styleWithCSS command of the editing API, execCommand that is.
However, before proceeding please note that:
This spec is incomplete and it is not expected that it will advance
beyond draft status. Authors should not use most of these features
directly, but instead use JavaScript editing libraries. The features
described in this document are not implemented consistently or fully
by user agents, and it is not expected that this will change in the
foreseeable future.... This spec is to meant to help implementations
in standardizing these existing features. It is predicted that in the
future both specs will be replaced by Content Editable Events and
Input Events....
Having clarified that, the following will work in most modern browsers viz. Edge, FireFox and Chrome that I could test in.
By default the foreColor command of execCommand wraps the selected text with a font tag, which is deprecated. So, you need to use the styleWithCSS command. Now this works with the editing API, which means that the element you are trying to work with, should have its contentEditable attribute set.
To work around this, you can temporarily set this attribute just before changing the color in the selected text fragment and then resetting the attribute once done.
Given your paragraph like this:
<p id="p">
Hi , It's a new question in StackOverflow!
</p>
When you select the word StackOverflow, the following code will result in this...
<p id="p">
Hi , It's a new question in <span style="color: rgb(255, 0, 0);">StackOverflow</span>!
</p>
... wrapping your selected text in a span with the style applied.
Fiddle: http://jsfiddle.net/abhitalks/j9w6dj7m/
Snippet:
p = document.getElementById('p');
p.addEventListener('mouseup', setColor);
function setColor() {
p.setAttribute('contentEditable', true);
document.execCommand('styleWithCSS', false, true);
document.execCommand('foreColor', false, "#f00");
p.setAttribute('contentEditable', false);
}
<p id="p" contentEditable="false">
Hi , It's a new question in stackoverflow!
</p>
Edit:
Now that you have added code (and what you have already tried) in your question, you could use the range selection to do what you are after.
Specifically, you will need to learn:
selection: https://developer.mozilla.org/en-US/docs/Web/API/Selection, this you have already done. Cheers!
range: https://developer.mozilla.org/en-US/docs/Web/API/Range/Range, because you will be dealing with ranges here
selection.getRangeAt(): https://developer.mozilla.org/en-US/docs/Web/API/Selection/getRangeAt, because you will need to extract the selected text as a range object
range.surroundContents(): https://developer.mozilla.org/en-US/docs/Web/API/range/surroundContents, because you will need to surround the selected text range with a span.
Putting it all together all you have to do is (explanation in code comments):
function setClass() {
var selection = x.getSelected(), range, // you have already done this
span = document.createElement("span"); // create a span element
span.classList.add('red'); // add the class to the span
if (selection != '') {
range = selection.getRangeAt(0); // get the range from selected text
range.surroundContents(span); // surround the range with span
}
}
Fiddle 2: http://jsfiddle.net/abhitalks/kn0u5frj/
Snippet 2:
var x = {},
p = document.getElementById('p');
p.addEventListener('mouseup', setClass);
function setClass() {
var selection = x.getSelected(), range,
span = document.createElement("span");
span.classList.add('red');
if (selection != '') {
range = selection.getRangeAt(0);
range.surroundContents(span);
}
}
x.getSelected = function() {
var t = '';
if (window.getSelection) {
t = window.getSelection();
} else if (document.getSelection) {
t = document.getSelection();
} else if (document.selection) {
t = document.selection.createRange().text;
}
return t;
}
.red { color: #f00; }
<p id="p">
Hi , It's a new question in stackoverflow!
</p>

You can use the getSelection() method
Below is the example:
Repeated Question:
How to get selected text in textarea?

You can use CSS with :: selection http://caniuse.com/#search=%3A%3Aselection
::selection {
background: #ffb7b7; /* WebKit/Blink Browsers */
}
::-moz-selection {
background: #ffb7b7; /* Gecko Browsers */
}
Or javascript with range

Bold Selected Text in contentEditable div, using pure JavaScript without libraries such as jQuery

We have an editable div and we want to change the style of the text, selected by the user, on clicking our button; just same as this editor's bold or italic button.
But when we click on the button our selected text get deselected.
So how to keep our selected text highlighted even if the focus from the editable is off and change the style.
My Code :
Editable Div:
var textbox= document.createElement("div");
textbox.setAttribute("contenteditable", "true");
Button :
var bold = document.createElement("div");
bold.innerHTML = "B";
Button Click:
bold.addEventListener("click", function(){
getSelectedText();
},false);
function getSelectedText()
{
var html = "";
if (window.getSelection) {
html = window.getSelection().toString();
}
else if (document.selection && document.selection.type != "Control") {
html = document.selection.createRange().text;
}
alert(html);
}

You can get the selection by listening to your contentEditable's onmouseup and store it in a variable. After you clicked a div, you restore the selection to back what it was:
Javascript:
var range = "";
function getSelected() {
var selection = window.getSelection()
range = selection.getRangeAt(0);
}
function reselect() {
var selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
}
jsfiddle DEMO
used a button and a div for buttons so you can see the difference.

Either use the mousedown event instead of the click event or set the <div> button to be unselectable.
See this answer for details.