modernizr/feature-detects/contenteditable.js

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

/*!
{
  "name": "Content Editable",
  "property": "contenteditable",
  "caniuse": "contenteditable",
  "notes": [{
    "name": "WHATWG spec",
    "href": "https://html.spec.whatwg.org/multipage/interaction.html#contenteditable"
  }]
}
!*/
/* DOC
Detects support for the `contenteditable` attribute of elements, allowing their DOM text contents to be edited directly by the user.
*/
define(['Modernizr', 'createElement', 'docElement'], function(Modernizr, createElement, docElement) {
  Modernizr.addTest('contenteditable', function() {
    // early bail out
    if (!('contentEditable' in docElement)) {
      return;
    }

    // some mobile browsers (android < 3.0, iOS < 5) claim to support
    // contentEditable, but but don't really. This test checks to see
    // confirms whether or not it actually supports it.

    var div = createElement('div');
    div.contentEditable = true;
    return div.contentEditable === 'true';
  });
});