Is it better to add position support to Cursor.js

[haozhechen]

The Cursor support for medium.js is good but not enough. Like it lacks some basic cursor position support, i.e. if the cursor is at the end of the element?

I tried to add two functions: isCaretAtBegin and isCaretAtEnd. which could support some basic cursor position support.

Medium.Cursor.prototype = {
	......
	isCaretAtBegin: function (el) {
            var sel = rangy.getSelection();
            return sel.anchorOffset === 0;
        },
	isCaretAtEnd: function (el) {
            var sel = rangy.getSelection();
            return sel.anchorOffset === el.innerText.length;
        }
}

However, when using this two function upon nested elements, the

rangy.getSelection() 

will get the last inner element other than the very outer element.
For example, use

rangy.getSelection() 

for element

<p>this is a test paragraph,<span>ho ho ho</span></p>,

the selection will be the inner span other than the p element, so even you place the cursor at the end of this paragraph, the

el.innerText.length 

will be 33 and

sel.anchorOffset

will be 8.

I just wonder if these kind of functions is needed, I could work on it to improve Medium.js since this is the best open source WYSIWYG editor I have met.

[robertleeplummerjr]

We welcome it!