upfront-editable/lib/feature-detection.js

Friendly contenteditable API

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.contenteditableSpanBug = exports.selectionchange = exports.contenteditable = undefined;

var _bowser = require('bowser');

var _bowser2 = _interopRequireDefault(_bowser);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
* Check for contenteditable support
*
* (from Modernizr)
* this is known to false positive in some mobile browsers
* here is a whitelist of verified working browsers:
* https://github.com/NielsLeenheer/html5test/blob/549f6eac866aa861d9649a0707ff2c0157895706/scripts/engine.js#L2083
*/
var contenteditable = exports.contenteditable = typeof document.documentElement.contentEditable !== 'undefined';

var parser = _bowser2.default.getParser(window.navigator.userAgent);
var browserName = parser.getBrowser();
var browserEngine = parser.getEngineName();
var webKit = browserEngine === 'WebKit';

/**
 * Check selectionchange event (currently supported in IE, Chrome and Safari)
 *
 * To handle selectionchange in firefox see CKEditor selection object
 * https://github.com/ckeditor/ckeditor-dev/blob/master/core/selection.js#L388
 */
// not exactly feature detection... is it?
var selectionchange = exports.selectionchange = !(browserEngine === 'Gecko' || browserName === 'Opera');

// See Keyboard.prototype.preventContenteditableBug for more information.
var contenteditableSpanBug = exports.contenteditableSpanBug = !!webKit;