text: /* http://github.com/mindmup/bootstrap-wysiwyg */
  /*global jQuery, $, FileReader*/
  /*jslint browser:true*/
  (function ($) {
  	'use strict';
  	var readFileIntoDataUrl = function (fileInfo) {
  		var loader = $.Deferred(),
  			fReader = new FileReader();
  		fReader.onload = function (e) {
  			loader.resolve(e.target.result);
  		};
  		fReader.onerror = loader.reject;
  		fReader.onprogress = loader.notify;
  		fReader.readAsDataURL(fileInfo);
  		return loader.promise();
  	};
  	$.fn.cleanHtml = function () {
  		var html = $(this).html();
  		return html && html.replace(/(<br>|\s|<div><br><\/div>|&nbsp;)*$/, '');
  	};
  	$.fn.wysiwyg = function (userOptions) {
  		var editor = this,
  			selectedRange,
  			options,
  			updateToolbar = function () {
  				if (options.activeToolbarClass) {
  					$(options.toolbarSelector).find('.btn[data-' + options.commandRole + ']').each(function () {
  						var command = $(this).data(options.commandRole);
  						if (document.queryCommandState(command)) {
  							$(this).addClass(options.activeToolbarClass);
  						} else {
  							$(this).removeClass(options.activeToolbarClass);
  						}
  					});
  				}
  			},
  			execCommand = function (commandWithArgs, valueArg) {
  				var commandArr = commandWithArgs.split(' '),
  					command = commandArr.shift(),
  					args = commandArr.join(' ') + (valueArg || '');
  				document.execCommand(command, 0, args);
  				updateToolbar();
  			},
  			bindHotkeys = function (hotKeys) {
  				$.each(hotKeys, function (hotkey, command) {
  					editor.keydown(hotkey, function (e) {
  						if (editor.attr('contenteditable') && editor.is(':visible')) {
  							e.preventDefault();
  							e.stopPropagation();
  							execCommand(command);
  						}
  					}).keyup(hotkey, function (e) {
  						if (editor.attr('contenteditable') && editor.is(':visible')) {
  							e.preventDefault();
  							e.stopPropagation();
  						}
  					});
  				});
  			},
  			getCurrentRange = function () {
  				var sel = window.getSelection();
  				if (sel.getRangeAt && sel.rangeCount) {
  					return sel.getRangeAt(0);
  				}
  			},
  			saveSelection = function () {
  				selectedRange = getCurrentRange();
  			},
  			restoreSelection = function () {
  				var selection = window.getSelection();
  				if (selectedRange) {
  					try {
  						selection.removeAllRanges();
  					} catch (ex) {
  						document.body.createTextRange().select();
  						document.selection.empty();
  					}
  
  					selection.addRange(selectedRange);
  				}
  			},
  			insertFiles = function (files) {
  				editor.focus();
  				$.each(files, function (idx, fileInfo) {
  					if (/^image\//.test(fileInfo.type)) {
  						$.when(readFileIntoDataUrl(fileInfo)).done(function (dataUrl) {
  							execCommand('insertimage', dataUrl);
  						}).fail(function (e) {
  							options.fileUploadError("file-reader", e);
  						});
  					} else {
  						options.fileUploadError("unsupported-file-type", fileInfo.type);
  					}
  				});
  			},
  			markSelection = function (input, color) {
  				restoreSelection();
  				if (document.queryCommandSupported('hiliteColor')) {
  					document.execCommand('hiliteColor', 0, color || 'transparent');
  				}
  				saveSelection();
  				input.data(options.selectionMarker, color);
  			},
  			bindToolbar = function (toolbar, options) {
  				toolbar.find('a[data-' + options.commandRole + ']').click(function () {
  					restoreSelection();
  					editor.focus();
  					execCommand($(this).data(options.commandRole));
  					saveSelection();
  				});
  				toolbar.find('[data-toggle=dropdown]').click(restoreSelection);
  
  				toolbar.find('input[type=text][data-' + options.commandRole + ']').on('webkitspeechchange change', function () {
  					var newValue = this.value; /* ugly but prevents fake double-calls due to selection restoration */
  					this.value = '';
  					restoreSelection();
  					if (newValue) {
  						editor.focus();
  						execCommand($(this).data(options.commandRole), newValue);
  					}
  					saveSelection();
  				}).on('focus', function () {
  					var input = $(this);
  					if (!input.data(options.selectionMarker)) {
  						markSelection(input, options.selectionColor);
  						input.focus();
  					}
  				}).on('blur', function () {
  					var input = $(this);
  					if (input.data(options.selectionMarker)) {
  						markSelection(input, false);
  					}
  				});
  				toolbar.find('input[type=file][data-' + options.commandRole + ']').change(function () {
  					restoreSelection();
  					if (this.type === 'file' && this.files && this.files.length > 0) {
  						insertFiles(this.files);
  					}
  					saveSelection();
  					this.value = '';
  				});
  			},
  			initFileDrops = function () {
  				editor.on('dragenter dragover', false)
  					.on('drop', function (e) {
  						var dataTransfer = e.originalEvent.dataTransfer;
  						e.stopPropagation();
  						e.preventDefault();
  						if (dataTransfer && dataTransfer.files && dataTransfer.files.length > 0) {
  							insertFiles(dataTransfer.files);
  						}
  					});
  			};
  		options = $.extend({}, $.fn.wysiwyg.defaults, userOptions);
  		bindHotkeys(options.hotKeys);
  		initFileDrops();
  		bindToolbar($(options.toolbarSelector), options);
  		editor.attr('contenteditable', true)
  			.on('mouseup keyup mouseout', function () {
  				saveSelection();
  				updateToolbar();
  			});
  		$(window).bind('touchend', function (e) {
  			var isInside = (editor.is(e.target) || editor.has(e.target).length > 0),
  				currentRange = getCurrentRange(),
  				clear = currentRange && (currentRange.startContainer === currentRange.endContainer && currentRange.startOffset === currentRange.endOffset);
  			if (!clear || isInside) {
  				saveSelection();
  				updateToolbar();
  			}
  		});
  		return this;
  	};
  	$.fn.wysiwyg.defaults = {
  		hotKeys: {
  			'ctrl+b meta+b': 'bold',
  			'ctrl+i meta+i': 'italic',
  			'ctrl+u meta+u': 'underline',
  			'ctrl+z meta+z': 'undo',
  			'ctrl+y meta+y meta+shift+z': 'redo',
  			'ctrl+l meta+l': 'justifyleft',
  			'ctrl+r meta+r': 'justifyright',
  			'ctrl+e meta+e': 'justifycenter',
  			'ctrl+j meta+j': 'justifyfull',
  			'shift+tab': 'outdent',
  			'tab': 'indent'
  		},
  		toolbarSelector: '[data-role=editor-toolbar]',
  		commandRole: 'edit',
  		activeToolbarClass: 'btn-info',
  		selectionMarker: 'edit-focus-marker',
  		selectionColor: 'darkgrey',
  		fileUploadError: function (reason, detail) { console.log("File upload error", reason, detail); }
  	};
  }(window.jQuery));
  