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Squire/source/Constants.js

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/*jshint strict:false, undef:false, unused:false */
var DOCUMENT_POSITION_PRECEDING = 2; // Node.DOCUMENT_POSITION_PRECEDING
var ELEMENT_NODE = 1; // Node.ELEMENT_NODE;
var TEXT_NODE = 3; // Node.TEXT_NODE;
var SHOW_ELEMENT = 1; // NodeFilter.SHOW_ELEMENT;
var SHOW_TEXT = 4; // NodeFilter.SHOW_TEXT;
var START_TO_START = 0; // Range.START_TO_START
var START_TO_END = 1; // Range.START_TO_END
var END_TO_END = 2; // Range.END_TO_END
var END_TO_START = 3; // Range.END_TO_START
var ZWS = '\u200B';
var win = doc.defaultView;
var ua = navigator.userAgent;
var isIOS = /iP(?:ad|hone|od)/.test( ua );
var isMac = /Mac OS X/.test( ua );
var isGecko = /Gecko\//.test( ua );
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var isIElt11 = /Trident\/[456]\./.test( ua );
var isPresto = !!win.opera;
var isWebKit = /WebKit\//.test( ua );
var ctrlKey = isMac ? 'meta-' : 'ctrl-';
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var useTextFixer = isIElt11 || isPresto;
var cantFocusEmptyTextNodes = isIElt11 || isWebKit;
var losesSelectionOnBlur = isIElt11;
var canObserveMutations = typeof MutationObserver !== 'undefined';
// Use [^ \t\r\n] instead of \S so that nbsp does not count as white-space
var notWS = /[^ \t\r\n]/;
var indexOf = Array.prototype.indexOf;