/files/angular.textangular/1.2.2/textAngular.js

/*
textAngular
Author : Austin Anderson
License : 2013 MIT
Version 1.2.2

See README.md or https://github.com/fraywing/textAngular/wiki for requirements and use.
*/

(function(){ // encapsulate all variables so they don't become global vars
	"Use Strict";

	// fix a webkit bug, see: https://gist.github.com/shimondoodkin/1081133
	// this is set true when a blur occurs as the blur of the ta-bind triggers before the click
	var globalContentEditableBlur = false;
	/* istanbul ignore next: Browser Un-Focus fix for webkit */
	if(/AppleWebKit\/([\d.]+)/.exec(navigator.userAgent)) { // detect webkit
		document.addEventListener("click", function(){
			var curelement = window.event.target;
			if(globalContentEditableBlur && curelement !== null){
				var isEditable = false;
				var tempEl = curelement;
				while(tempEl !== null && tempEl.tagName.toLowerCase() !== 'html' && !isEditable){
					isEditable = tempEl.contentEditable === 'true';
					tempEl = tempEl.parentNode;
				}
				if(!isEditable){
					document.getElementById('textAngular-editableFix-010203040506070809').setSelectionRange(0, 0); // set caret focus to an element that handles caret focus correctly.
					curelement.focus(); // focus the wanted element.
				}
			}
			globalContentEditableBlur = false;
		}, false); // add global click handler
		angular.element(document).ready(function () {
			angular.element(document.body).append(angular.element('<input id="textAngular-editableFix-010203040506070809" style="width:1px;height:1px;border:none;margin:0;padding:0;position:absolute; top: -10000; left: -10000;" unselectable="on" tabIndex="-1">'));
		});
	}
	// IE version detection - http://stackoverflow.com/questions/4169160/javascript-ie-detection-why-not-use-simple-conditional-comments
	// We need this as IE sometimes plays funny tricks with the contenteditable.
	// ----------------------------------------------------------
	// If you're not in IE (or IE version is less than 5) then:
	// ie === undefined
	// If you're in IE (>=5) then you can determine which version:
	// ie === 7; // IE7
	// Thus, to detect IE:
	// if (ie) {}
	// And to detect the version:
	// ie === 6 // IE6
	// ie > 7 // IE8, IE9, IE10 ...
	// ie < 9 // Anything less than IE9
	// ----------------------------------------------------------
	/* istanbul ignore next: untestable browser check */
	var ie = (function(){
		var undef,rv = -1; // Return value assumes failure.
		var ua = window.navigator.userAgent;
		var msie = ua.indexOf('MSIE ');
		var trident = ua.indexOf('Trident/');

		if (msie > 0) {
			// IE 10 or older => return version number
			rv = parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);
		} else if (trident > 0) {
			// IE 11 (or newer) => return version number
			var rvNum = ua.indexOf('rv:');
			rv = parseInt(ua.substring(rvNum + 3, ua.indexOf('.', rvNum)), 10);
		}

		return ((rv > -1) ? rv : undef);
	}());

	// Thanks to answer in http://stackoverflow.com/questions/2308134/trim-in-javascript-not-working-in-ie
	/* istanbul ignore next: trim shim for older browsers */
	if(typeof String.prototype.trim !== 'function') {
		String.prototype.trim = function() {
			return this.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
		};
	}

	// tests against the current jqLite/jquery implementation if this can be an element
	function validElementString(string){
		try{
			return angular.element(string).length !== 0;
		}catch(any){
			return false;
		}
	}

	/*
		Custom stylesheet for the placeholders rules.
		Credit to: http://davidwalsh.name/add-rules-stylesheets
	*/
	var sheet, addCSSRule, removeCSSRule, _addCSSRule, _removeCSSRule;
	/* istanbul ignore else: IE <8 test*/
	if(ie > 8 || ie === undefined){
		var topsheet = (function() {
			// Create the <style> tag
			var style = document.createElement("style");
			/* istanbul ignore else : WebKit hack :( */
			if(/AppleWebKit\/([\d.]+)/.exec(navigator.userAgent)) style.appendChild(document.createTextNode(""));

			// Add the <style> element to the page, add as first so the styles can be overridden by custom stylesheets
			document.head.insertBefore(style,document.head.firstChild);

			return style.sheet;
		})();

		// this sheet is used for the placeholders later on.
		sheet = (function() {
			// Create the <style> tag
			var style = document.createElement("style");
			/* istanbul ignore else : WebKit hack :( */
			if(/AppleWebKit\/([\d.]+)/.exec(navigator.userAgent)) style.appendChild(document.createTextNode(""));

			// Add the <style> element to the page, add as first so the styles can be overridden by custom stylesheets
			document.head.appendChild(style);

			return style.sheet;
		})();

		// use as: addCSSRule("header", "float: left");
		addCSSRule = function(selector, rules) {
			_addCSSRule(sheet, selector, rules);
		};
		_addCSSRule = function(sheet, selector, rules){
			var insertIndex;
			/* istanbul ignore else: firefox catch */
			if(sheet.rules) insertIndex = Math.max(sheet.rules.length - 1, 0);
			else if(sheet.cssRules) insertIndex = Math.max(sheet.cssRules.length - 1, 0);
			/* istanbul ignore else: untestable IE option */
			if(sheet.insertRule) {
				sheet.insertRule(selector + "{" + rules + "}", insertIndex);
			}
			else {
				sheet.addRule(selector, rules, insertIndex);
			}
			// return the index of the stylesheet rule
			return insertIndex;
		};

		removeCSSRule = function(index){
			_removeCSSRule(sheet, index);
		};
		_removeCSSRule = function(sheet, index){
			/* istanbul ignore else: untestable IE option */
			if(sheet.removeRule){
				sheet.removeRule(index);
			}else{
				sheet.deleteRule(index);
			}
		};

		// add generic styling for the editor
		_addCSSRule(topsheet, '.ta-scroll-window.form-control', "height: auto; min-height: 300px; overflow: auto; font-family: inherit; font-size: 100%; position: relative; padding: 0;");
		_addCSSRule(topsheet, '.ta-root.focussed .ta-scroll-window.form-control', 'border-color: #66afe9; outline: 0; -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(102, 175, 233, 0.6);');
		_addCSSRule(topsheet, '.ta-editor.ta-html', "min-height: 300px; height: auto; overflow: auto; font-family: inherit; font-size: 100%;");
		_addCSSRule(topsheet, '.ta-scroll-window > .ta-bind', "height: auto; min-height: 300px; padding: 6px 12px;");

		// add the styling for the awesomness of the resizer
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay', 'z-index: 100; position: absolute; display: none;');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-info', 'position: absolute; bottom: 16px; right: 16px; border: 1px solid black; background-color: #FFF; padding: 0 4px; opacity: 0.7;');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-background', 'position: absolute; bottom: 5px; right: 5px; left: 5px; top: 5px; border: 1px solid black; background-color: rgba(0, 0, 0, 0.2);');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-corner', 'width: 10px; height: 10px; position: absolute;');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-corner-tl', 'top: 0; left: 0; border-left: 1px solid black; border-top: 1px solid black;');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-corner-tr', 'top: 0; right: 0; border-right: 1px solid black; border-top: 1px solid black;');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-corner-bl', 'bottom: 0; left: 0; border-left: 1px solid black; border-bottom: 1px solid black;');
		_addCSSRule(topsheet, '.ta-root .ta-resizer-handle-overlay > .ta-resizer-handle-corner-br', 'bottom: 0; right: 0; border: 1px solid black; cursor: se-resize; background-color: white;');
	}

	// recursive function that returns an array of angular.elements that have the passed attribute set on them
	function getByAttribute(element, attribute){
		var resultingElements = [];
		var childNodes = element.children();
		if(childNodes.length){
			angular.forEach(childNodes, function(child){
				resultingElements = resultingElements.concat(getByAttribute(angular.element(child), attribute));
			});
		}
		if(element.attr(attribute) !== undefined) resultingElements.push(element);
		return resultingElements;
	}

	// this global var is used to prevent multiple fires of the drop event. Needs to be global to the textAngular file.
	var dropFired = false;
	var textAngular = angular.module("textAngular", ['ngSanitize', 'textAngularSetup']); //This makes ngSanitize required

	// setup the global contstant functions for setting up the toolbar

	// all tool definitions
	var taTools = {};
	/*
		A tool definition is an object with the following key/value parameters:
			action: [function(deferred, restoreSelection)]
					a function that is executed on clicking on the button - this will allways be executed using ng-click and will
					overwrite any ng-click value in the display attribute.
					The function is passed a deferred object ($q.defer()), if this is wanted to be used `return false;` from the action and
					manually call `deferred.resolve();` elsewhere to notify the editor that the action has finished.
					restoreSelection is only defined if the rangy library is included and it can be called as `restoreSelection()` to restore the users
					selection in the WYSIWYG editor.
			display: [string]?
					Optional, an HTML element to be displayed as the button. The `scope` of the button is the tool definition object with some additional functions
					If set this will cause buttontext and iconclass to be ignored
			buttontext: [string]?
					if this is defined it will replace the contents of the element contained in the `display` element
			iconclass: [string]?
					if this is defined an icon (<i>) will be appended to the `display` element with this string as it's class
			tooltiptext: [string]?
					Optional, a plain text description of the action, used for the title attribute of the action button in the toolbar by default.
			activestate: [function(commonElement)]?
					this function is called on every caret movement, if it returns true then the class taOptions.classes.toolbarButtonActive
					will be applied to the `display` element, else the class will be removed
			disabled: [function()]?
					if this function returns true then the tool will have the class taOptions.classes.disabled applied to it, else it will be removed
		Other functions available on the scope are:
			name: [string]
					the name of the tool, this is the first parameter passed into taRegisterTool
			isDisabled: [function()]
					returns true if the tool is disabled, false if it isn't
			displayActiveToolClass: [function(boolean)]
					returns true if the tool is 'active' in the currently focussed toolbar
			onElementSelect: [Object]
					This object contains the following key/value pairs and is used to trigger the ta-element-select event
					element: [String]
						an element name, will only trigger the onElementSelect action if the tagName of the element matches this string
					filter: [function(element)]?
						an optional filter that returns a boolean, if true it will trigger the onElementSelect.
					action: [function(event, element, editorScope)]
						the action that should be executed if the onElementSelect function runs
	*/
	// name and toolDefinition to add into the tools available to be added on the toolbar
	function registerTextAngularTool(name, toolDefinition){
		if(!name || name === '' || taTools.hasOwnProperty(name)) throw('textAngular Error: A unique name is required for a Tool Definition');
		if(
			(toolDefinition.display && (toolDefinition.display === '' || !validElementString(toolDefinition.display))) ||
			(!toolDefinition.display && !toolDefinition.buttontext && !toolDefinition.iconclass)
		)
			throw('textAngular Error: Tool Definition for "' + name + '" does not have a valid display/iconclass/buttontext value');
		taTools[name] = toolDefinition;
	}

	textAngular.constant('taRegisterTool', registerTextAngularTool);
	textAngular.value('taTools', taTools);

	textAngular.config([function(){
		// clear taTools variable. Just catches testing and any other time that this config may run multiple times...
		angular.forEach(taTools, function(value, key){ delete taTools[key];	});
	}]);

	textAngular.directive("textAngular", [
		'$compile', '$timeout', 'taOptions', 'taSelection', 'taExecCommand', 'textAngularManager', '$window', '$document', '$animate', '$log',
		function($compile, $timeout, taOptions, taSelection, taExecCommand, textAngularManager, $window, $document, $animate, $log){
			return {
				require: '?ngModel',
				scope: {},
				restrict: "EA",
				link: function(scope, element, attrs, ngModel){
					// all these vars should not be accessable outside this directive
					var _keydown, _keyup, _keypress, _mouseup, _mousedown, _focusin, _focusout,
						_originalContents, _toolbars,
						_serial = (attrs.serial) ? attrs.serial : Math.floor(Math.random() * 10000000000000000),
						_name = (attrs.name) ? attrs.name : 'textAngularEditor' + _serial,
						_taExecCommand;

					var oneEvent = function(_element, event, action){
						$timeout(function(){
							// shim the .one till fixed
							var _func = function(){
								_element.off(event, _func);
								action();
							};
							_element.on(event, _func);
						}, 100);
					};
					_taExecCommand = taExecCommand(attrs.taDefaultWrap);
					// get the settings from the defaults and add our specific functions that need to be on the scope
					angular.extend(scope, angular.copy(taOptions), {
						// wraps the selection in the provided tag / execCommand function. Should only be called in WYSIWYG mode.
						wrapSelection: function(command, opt, isSelectableElementTool){
							// catch errors like FF erroring when you try to force an undo with nothing done
							_taExecCommand(command, false, opt);
							if(isSelectableElementTool){
								// re-apply the selectable tool events
								scope['reApplyOnSelectorHandlerstaTextElement' + _serial]();
							}
							// refocus on the shown display element, this fixes a display bug when using :focus styles to outline the box.
							// You still have focus on the text/html input it just doesn't show up
							scope.displayElements.text[0].focus();
						},
						showHtml: false
					});
					// setup the options from the optional attributes
					if(attrs.taFocussedClass)			scope.classes.focussed = attrs.taFocussedClass;
					if(attrs.taTextEditorClass)			scope.classes.textEditor = attrs.taTextEditorClass;
					if(attrs.taHtmlEditorClass)			scope.classes.htmlEditor = attrs.taHtmlEditorClass;
					// optional setup functions
					if(attrs.taTextEditorSetup)			scope.setup.textEditorSetup = scope.$parent.$eval(attrs.taTextEditorSetup);
					if(attrs.taHtmlEditorSetup)			scope.setup.htmlEditorSetup = scope.$parent.$eval(attrs.taHtmlEditorSetup);
					// optional fileDropHandler function
					if(attrs.taFileDrop)				scope.fileDropHandler = scope.$parent.$eval(attrs.taFileDrop);
					else								scope.fileDropHandler = scope.defaultFileDropHandler;

					_originalContents = element[0].innerHTML;
					// clear the original content
					element[0].innerHTML = '';

					// Setup the HTML elements as variable references for use later
					scope.displayElements = {
						// we still need the hidden input even with a textarea as the textarea may have invalid/old input in it,
						// wheras the input will ALLWAYS have the correct value.
						forminput: angular.element("<input type='hidden' tabindex='-1' style='display: none;'>"),
						html: angular.element("<textarea></textarea>"),
						text: angular.element("<div></div>"),
						// other toolbased elements
						scrollWindow: angular.element("<div class='ta-scroll-window'></div>"),
						popover: angular.element('<div class="popover fade bottom" style="max-width: none; width: 305px;"></div>'),
						popoverArrow: angular.element('<div class="arrow"></div>'),
						popoverContainer: angular.element('<div class="popover-content"></div>'),
						resize: {
							overlay: angular.element('<div class="ta-resizer-handle-overlay"></div>'),
							background: angular.element('<div class="ta-resizer-handle-background"></div>'),
							anchors: [
								angular.element('<div class="ta-resizer-handle-corner ta-resizer-handle-corner-tl"></div>'),
								angular.element('<div class="ta-resizer-handle-corner ta-resizer-handle-corner-tr"></div>'),
								angular.element('<div class="ta-resizer-handle-corner ta-resizer-handle-corner-bl"></div>'),
								angular.element('<div class="ta-resizer-handle-corner ta-resizer-handle-corner-br"></div>')
							],
							info: angular.element('<div class="ta-resizer-handle-info"></div>')
						}
					};

					// Setup the popover
					scope.displayElements.popover.append(scope.displayElements.popoverArrow);
					scope.displayElements.popover.append(scope.displayElements.popoverContainer);
					scope.displayElements.scrollWindow.append(scope.displayElements.popover);

					scope.displayElements.popover.on('mousedown', function(e, eventData){
						/* istanbul ignore else: this is for catching the jqLite testing*/
						if(eventData) angular.extend(e, eventData);
						// this prevents focusout from firing on the editor when clicking anything in the popover
						e.preventDefault();
						return false;
					});

					// define the popover show and hide functions
					scope.showPopover = function(_el){
						scope.displayElements.popover.css('display', 'block');
						scope.reflowPopover(_el);
						$animate.addClass(scope.displayElements.popover, 'in');
						oneEvent(element, 'click keyup', function(){scope.hidePopover();});
					};
					scope.reflowPopover = function(_el){
						if(scope.displayElements.text[0].offsetHeight - 51 > _el[0].offsetTop){
							scope.displayElements.popover.css('top', _el[0].offsetTop + _el[0].offsetHeight + 'px');
							scope.displayElements.popover.removeClass('top').addClass('bottom');
						}else{
							scope.displayElements.popover.css('top', _el[0].offsetTop - 54 + 'px');
							scope.displayElements.popover.removeClass('bottom').addClass('top');
						}
						var _maxLeft = scope.displayElements.text[0].offsetWidth - scope.displayElements.popover[0].offsetWidth;
						var _targetLeft = _el[0].offsetLeft + (_el[0].offsetWidth / 2.0) - (scope.displayElements.popover[0].offsetWidth / 2.0);
						scope.displayElements.popover.css('left', Math.max(0, Math.min(_maxLeft, _targetLeft)) + 'px');
						scope.displayElements.popoverArrow.css('margin-left', (Math.min(_targetLeft, (Math.max(0, _targetLeft - _maxLeft))) - 11) + 'px');
					};
					scope.hidePopover = function(){
						$animate.removeClass(scope.displayElements.popover, 'in', /* istanbul ignore next: dosen't test with mocked animate */ function(){
							scope.displayElements.popover.css('display', '');
							scope.displayElements.popoverContainer.attr('style', '');
							scope.displayElements.popoverContainer.attr('class', 'popover-content');
						});
					};

					// setup the resize overlay
					scope.displayElements.resize.overlay.append(scope.displayElements.resize.background);
					angular.forEach(scope.displayElements.resize.anchors, function(anchor){ scope.displayElements.resize.overlay.append(anchor);});
					scope.displayElements.resize.overlay.append(scope.displayElements.resize.info);
					scope.displayElements.scrollWindow.append(scope.displayElements.resize.overlay);

					// define the show and hide events
					scope.reflowResizeOverlay = function(_el){
						_el = angular.element(_el)[0];
						scope.displayElements.resize.overlay.css({
							'display': 'block',
							'left': _el.offsetLeft - 5 + 'px',
							'top': _el.offsetTop - 5 + 'px',
							'width': _el.offsetWidth + 10 + 'px',
							'height': _el.offsetHeight + 10 + 'px'
						});
						scope.displayElements.resize.info.text(_el.offsetWidth + ' x ' + _el.offsetHeight);
					};
					/* istanbul ignore next: pretty sure phantomjs won't test this */
					scope.showResizeOverlay = function(_el){
						var resizeMouseDown = function(event){
							var startPosition = {
								width: parseInt(_el.attr('width')),
								height: parseInt(_el.attr('height')),
								x: event.clientX,
								y: event.clientY
							};
							if(startPosition.width === undefined) startPosition.width = _el[0].offsetWidth;
							if(startPosition.height === undefined) startPosition.height = _el[0].offsetHeight;
							scope.hidePopover();
							var ratio = startPosition.height / startPosition.width;
							var mousemove = function(event){
								// calculate new size
								var pos = {
									x: Math.max(0, startPosition.width + (event.clientX - startPosition.x)),
									y: Math.max(0, startPosition.height + (event.clientY - startPosition.y))
								};
								var applyImageSafeCSS = function(_el, css){
									_el = angular.element(_el);
									if(_el[0].tagName.toLowerCase() === 'img'){
										if(css.height){
											_el.attr('height', css.height);
											delete css.height;
										}
										if(css.width){
											_el.attr('width', css.width);
											delete css.width;
										}
									}
									_el.css(css);
								};
								if(event.shiftKey){
									// keep ratio
									var newRatio = pos.y / pos.x;
									applyImageSafeCSS(_el, {
										width: ratio > newRatio ? pos.x : pos.y / ratio,
										height: ratio > newRatio ? pos.x * ratio : pos.y
									});
								}else{
									applyImageSafeCSS(_el, {
										width: pos.x,
										height: pos.y
									});
								}
								// reflow the popover tooltip
								scope.reflowResizeOverlay(_el);
							};
							$document.find('body').on('mousemove', mousemove);
							oneEvent(scope.displayElements.resize.overlay, 'mouseup', function(){
								$document.find('body').off('mousemove', mousemove);
								scope.showPopover(_el);
							});
							event.stopPropagation();
							event.preventDefault();
						};

						scope.displayElements.resize.anchors[3].on('mousedown', resizeMouseDown);

						scope.reflowResizeOverlay(_el);
						oneEvent(element, 'click', function(){scope.hideResizeOverlay();});
					};
					/* istanbul ignore next: pretty sure phantomjs won't test this */
					scope.hideResizeOverlay = function(){
						scope.displayElements.resize.overlay.css('display', '');
					};

					// allow for insertion of custom directives on the textarea and div
					scope.setup.htmlEditorSetup(scope.displayElements.html);
					scope.setup.textEditorSetup(scope.displayElements.text);
					scope.displayElements.html.attr({
						'id': 'taHtmlElement' + _serial,
						'ng-show': 'showHtml',
						'ta-bind': 'ta-bind',
						'ng-model': 'html'
					});
					scope.displayElements.text.attr({
						'id': 'taTextElement' + _serial,
						'contentEditable': 'true',
						'ta-bind': 'ta-bind',
						'ng-model': 'html'
					});
					scope.displayElements.scrollWindow.attr({'ng-hide': 'showHtml'});
					if(attrs.taDefaultWrap) scope.displayElements.text.attr('ta-default-wrap', attrs.taDefaultWrap);
					
					if(attrs.taUnsafeSanitizer){
						scope.displayElements.text.attr('ta-unsafe-sanitizer', attrs.taUnsafeSanitizer);
						scope.displayElements.html.attr('ta-unsafe-sanitizer', attrs.taUnsafeSanitizer);
					}
					
					// add the main elements to the origional element
					scope.displayElements.scrollWindow.append(scope.displayElements.text);
					element.append(scope.displayElements.scrollWindow);
					element.append(scope.displayElements.html);

					scope.displayElements.forminput.attr('name', _name);
					element.append(scope.displayElements.forminput);

					if(attrs.tabindex){
						element.removeAttr('tabindex');
						scope.displayElements.text.attr('tabindex', attrs.tabindex);
						scope.displayElements.html.attr('tabindex', attrs.tabindex);
					}

					if (attrs.placeholder) {
						scope.displayElements.text.attr('placeholder', attrs.placeholder);
						scope.displayElements.html.attr('placeholder', attrs.placeholder);
					}

					if(attrs.taDisabled){
						scope.displayElements.text.attr('ta-readonly', 'disabled');
						scope.displayElements.html.attr('ta-readonly', 'disabled');
						scope.disabled = scope.$parent.$eval(attrs.taDisabled);
						scope.$parent.$watch(attrs.taDisabled, function(newVal){
							scope.disabled = newVal;
							if(scope.disabled){
								element.addClass(scope.classes.disabled);
							}else{
								element.removeClass(scope.classes.disabled);
							}
						});
					}

					// compile the scope with the text and html elements only - if we do this with the main element it causes a compile loop
					$compile(scope.displayElements.scrollWindow)(scope);
					$compile(scope.displayElements.html)(scope);

					scope.updateTaBindtaTextElement = scope['updateTaBindtaTextElement' + _serial];
					scope.updateTaBindtaHtmlElement = scope['updateTaBindtaHtmlElement' + _serial];

					// add the classes manually last
					element.addClass("ta-root");
					scope.displayElements.scrollWindow.addClass("ta-text ta-editor " + scope.classes.textEditor);
					scope.displayElements.html.addClass("ta-html ta-editor " + scope.classes.htmlEditor);

					// used in the toolbar actions
					scope._actionRunning = false;
					var _savedSelection = false;
					scope.startAction = function(){
						scope._actionRunning = true;
						// if rangy library is loaded return a function to reload the current selection
						if($window.rangy && $window.rangy.saveSelection){
							_savedSelection = $window.rangy.saveSelection();
							return function(){
								if(_savedSelection) $window.rangy.restoreSelection(_savedSelection);
							};
						}
					};
					scope.endAction = function(){
						scope._actionRunning = false;
						if(_savedSelection) $window.rangy.removeMarkers(_savedSelection);
						_savedSelection = false;
						scope.updateSelectedStyles();
						// only update if in text or WYSIWYG mode
						if(!scope.showHtml) scope['updateTaBindtaTextElement' + _serial]();
					};

					// note that focusout > focusin is called everytime we click a button - except bad support: http://www.quirksmode.org/dom/events/blurfocus.html
					// cascades to displayElements.text and displayElements.html automatically.
					_focusin = function(){
						element.addClass(scope.classes.focussed);
						_toolbars.focus();
					};
					scope.displayElements.html.on('focus', _focusin);
					scope.displayElements.text.on('focus', _focusin);
					_focusout = function(e){
						// if we are NOT runnig an action and have NOT focussed again on the text etc then fire the blur events
						if(!scope._actionRunning && $document[0].activeElement !== scope.displayElements.html[0] && $document[0].activeElement !== scope.displayElements.text[0]){
							element.removeClass(scope.classes.focussed);
							_toolbars.unfocus();
							// to prevent multiple apply error defer to next seems to work.
							$timeout(function(){ element.triggerHandler('blur'); }, 0);
						}
						e.preventDefault();
						return false;
					};
					scope.displayElements.html.on('blur', _focusout);
					scope.displayElements.text.on('blur', _focusout);

					// Setup the default toolbar tools, this way allows the user to add new tools like plugins.
					// This is on the editor for future proofing if we find a better way to do this.
					scope.queryFormatBlockState = function(command){
						// $document[0].queryCommandValue('formatBlock') errors in Firefox if we call this when focussed on the textarea
						return !scope.showHtml && command.toLowerCase() === $document[0].queryCommandValue('formatBlock').toLowerCase();
					};
					scope.queryCommandState = function(command){
						// $document[0].queryCommandValue('formatBlock') errors in Firefox if we call this when focussed on the textarea
						return (!scope.showHtml) ? $document[0].queryCommandState(command) : '';
					};
					scope.switchView = function(){
						scope.showHtml = !scope.showHtml;
						//Show the HTML view
						if(scope.showHtml){
							//defer until the element is visible
							$timeout(function(){
								// [0] dereferences the DOM object from the angular.element
								return scope.displayElements.html[0].focus();
							}, 100);
						}else{
							//Show the WYSIWYG view
							//defer until the element is visible
							$timeout(function(){
								// [0] dereferences the DOM object from the angular.element
								return scope.displayElements.text[0].focus();
							}, 100);
						}
					};

					// changes to the model variable from outside the html/text inputs
					// if no ngModel, then the only input is from inside text-angular
					if(attrs.ngModel){
						var _firstRun = true;
						ngModel.$render = function(){
							if(_firstRun){
								// we need this firstRun to set the originalContents otherwise it gets overrided by the setting of ngModel to undefined from NaN
								_firstRun = false;
								// if view value is null or undefined initially and there was original content, set to the original content
								var _initialValue = scope.$parent.$eval(attrs.ngModel);
								if((_initialValue === undefined || _initialValue === null) && (_originalContents && _originalContents !== '')){
									// on passing through to taBind it will be sanitised
									ngModel.$setViewValue(_originalContents);
								}
							}
							scope.displayElements.forminput.val(ngModel.$viewValue);
							// if the editors aren't focused they need to be updated, otherwise they are doing the updating
							/* istanbul ignore else: don't care */
							if(!scope._elementSelectTriggered && $document[0].activeElement !== scope.displayElements.html[0] && $document[0].activeElement !== scope.displayElements.text[0]){
								// catch model being null or undefined
								scope.html = ngModel.$viewValue || '';
							}
						};
						// trigger the validation calls
						var _validity = function(value){
							if(attrs.required) ngModel.$setValidity('required', !(!value || value.trim() === ''));
							return value;
						};
						ngModel.$parsers.push(_validity);
						ngModel.$formatters.push(_validity);
					}else{
						// if no ngModel then update from the contents of the origional html.
						scope.displayElements.forminput.val(_originalContents);
						scope.html = _originalContents;
					}

					// changes from taBind back up to here
					scope.$watch('html', function(newValue, oldValue){
						if(newValue !== oldValue){
							if(attrs.ngModel && ngModel.$viewValue !== newValue) ngModel.$setViewValue(newValue);
							scope.displayElements.forminput.val(newValue);
						}
					});

					if(attrs.taTargetToolbars) _toolbars = textAngularManager.registerEditor(_name, scope, attrs.taTargetToolbars.split(','));
					else{
						var _toolbar = angular.element('<div text-angular-toolbar name="textAngularToolbar' + _serial + '">');
						// passthrough init of toolbar options
						if(attrs.taToolbar)						_toolbar.attr('ta-toolbar', attrs.taToolbar);
						if(attrs.taToolbarClass)				_toolbar.attr('ta-toolbar-class', attrs.taToolbarClass);
						if(attrs.taToolbarGroupClass)			_toolbar.attr('ta-toolbar-group-class', attrs.taToolbarGroupClass);
						if(attrs.taToolbarButtonClass)			_toolbar.attr('ta-toolbar-button-class', attrs.taToolbarButtonClass);
						if(attrs.taToolbarActiveButtonClass)	_toolbar.attr('ta-toolbar-active-button-class', attrs.taToolbarActiveButtonClass);
						if(attrs.taFocussedClass)				_toolbar.attr('ta-focussed-class', attrs.taFocussedClass);

						element.prepend(_toolbar);
						$compile(_toolbar)(scope.$parent);
						_toolbars = textAngularManager.registerEditor(_name, scope, ['textAngularToolbar' + _serial]);
					}

					scope.$on('$destroy', function(){
						textAngularManager.unregisterEditor(_name);
					});

					// catch element select event and pass to toolbar tools
					scope.$on('ta-element-select', function(event, element){
						_toolbars.triggerElementSelect(event, element);
					});

					scope.$on('ta-drop-event', function(event, element, dropEvent, dataTransfer){
						scope.displayElements.text[0].focus();
						if(dataTransfer && dataTransfer.files && dataTransfer.files.length > 0){
							angular.forEach(dataTransfer.files, function(file){
								// taking advantage of boolean execution, if the fileDropHandler returns true, nothing else after it is executed
								// If it is false then execute the defaultFileDropHandler if the fileDropHandler is NOT the default one
								try{
									return scope.fileDropHandler(file, scope.wrapSelection) ||
										(scope.fileDropHandler !== scope.defaultFileDropHandler &&
										scope.defaultFileDropHandler(file, scope.wrapSelection));
								}catch(error){
									$log.error(error);
								}
							});
							dropEvent.preventDefault();
							dropEvent.stopPropagation();
						}
					});

					// the following is for applying the active states to the tools that support it
					scope._bUpdateSelectedStyles = false;
					// loop through all the tools polling their activeState function if it exists
					scope.updateSelectedStyles = function(){
						var _selection;
						// test if the common element ISN'T the root ta-text node
						if((_selection = taSelection.getSelectionElement()) !== undefined && _selection.parentNode !== scope.displayElements.text[0]){
							_toolbars.updateSelectedStyles(angular.element(_selection));
						}else _toolbars.updateSelectedStyles();
						// used to update the active state when a key is held down, ie the left arrow
						if(scope._bUpdateSelectedStyles) $timeout(scope.updateSelectedStyles, 200);
					};
					// start updating on keydown
					_keydown = function(){
						/* istanbul ignore else: don't run if already running */
						if(!scope._bUpdateSelectedStyles){
							scope._bUpdateSelectedStyles = true;
							scope.$apply(function(){
								scope.updateSelectedStyles();
							});
						}
					};
					scope.displayElements.html.on('keydown', _keydown);
					scope.displayElements.text.on('keydown', _keydown);
					// stop updating on key up and update the display/model
					_keyup = function(){
						scope._bUpdateSelectedStyles = false;
					};
					scope.displayElements.html.on('keyup', _keyup);
					scope.displayElements.text.on('keyup', _keyup);
					// stop updating on key up and update the display/model
					_keypress = function(event, eventData){
						/* istanbul ignore else: this is for catching the jqLite testing*/
						if(eventData) angular.extend(event, eventData);
						scope.$apply(function(){
							if(_toolbars.sendKeyCommand(event)){
								/* istanbul ignore else: don't run if already running */
								if(!scope._bUpdateSelectedStyles){
									scope.updateSelectedStyles();
								}
								event.preventDefault();
								return false;
							}
						});
					};
					scope.displayElements.html.on('keypress', _keypress);
					scope.displayElements.text.on('keypress', _keypress);
					// update the toolbar active states when we click somewhere in the text/html boxed
					_mouseup = function(){
						// ensure only one execution of updateSelectedStyles()
						scope._bUpdateSelectedStyles = false;
						scope.$apply(function(){
							scope.updateSelectedStyles();
						});
					};
					scope.displayElements.html.on('mouseup', _mouseup);
					scope.displayElements.text.on('mouseup', _mouseup);
				}
			};
		}
	]).factory('taBrowserTag', [function(){
		return function(tag){
			/* istanbul ignore next: ie specific test */
			if(!tag) return (ie <= 8)? 'P' : 'p';
			else if(tag === '') return (ie === undefined)? 'div' : (ie <= 8)? 'P' : 'p';
			else return (ie <= 8)? tag.toUpperCase() : tag;
		};
	}]).factory('taExecCommand', ['taSelection', 'taBrowserTag', '$document', function(taSelection, taBrowserTag, $document){
		var BLOCKELEMENTS = /^(address|article|aside|audio|blockquote|canvas|dd|div|dl|fieldset|figcaption|figure|footer|form|h1|h2|h3|h4|h5|h6|header|hgroup|hr|noscript|ol|output|p|pre|section|table|tfoot|ul|video)$/ig;
		var LISTELEMENTS = /^(ul|li|ol)$/ig;
		var listToDefault = function(listElement, defaultWrap){
			var $target, i;
			// if all selected then we should remove the list
			// grab all li elements and convert to taDefaultWrap tags
			var children = listElement.find('li');
			for(i = children.length - 1; i >= 0; i--){
				$target = angular.element('<' + defaultWrap + '>' + children[i].innerHTML + '</' + defaultWrap + '>');
				listElement.after($target);
			}
			listElement.remove();
			taSelection.setSelectionToElementEnd($target[0]);
		};
		var listToList = function(listElement, newListTag){
			var $target = angular.element('<' + newListTag + '>' + listElement[0].innerHTML + '</' + newListTag + '>');
			listElement.after($target);
			listElement.remove();
			taSelection.setSelectionToElementEnd($target.find('li')[0]);
		};
		var childElementsToList = function(elements, listElement, newListTag){
			var html = '';
			for(var i = 0; i < elements.length; i++){
				html += '<' + taBrowserTag('li') + '>' + elements[i].innerHTML + '</' + taBrowserTag('li') + '>';
			}
			var $target = angular.element('<' + newListTag + '>' + html + '</' + newListTag + '>');
			listElement.after($target);
			listElement.remove();
			taSelection.setSelectionToElementEnd($target.find('li')[0]);
		};
		return function(taDefaultWrap){
			taDefaultWrap = taBrowserTag(taDefaultWrap);
			return function(command, showUI, options){
				var i, $target, html, _nodes, next;
				var defaultWrapper = angular.element('<' + taDefaultWrap + '>');
				var selectedElement = taSelection.getSelectionElement();
				var $selected = angular.element(selectedElement);
				if(selectedElement !== undefined){
					var tagName = selectedElement.tagName.toLowerCase();
					if(command.toLowerCase() === 'insertorderedlist' || command.toLowerCase() === 'insertunorderedlist'){
						var selfTag = taBrowserTag((command.toLowerCase() === 'insertorderedlist')? 'ol' : 'ul');
						if(tagName === selfTag){
							// if all selected then we should remove the list
							// grab all li elements and convert to taDefaultWrap tags
							return listToDefault($selected, taDefaultWrap);
						}else if(tagName === 'li' && $selected.parent()[0].tagName.toLowerCase() === selfTag && $selected.parent().children().length === 1){
							// catch for the previous statement if only one li exists
							return listToDefault($selected.parent(), taDefaultWrap);
						}else if(tagName === 'li' && $selected.parent()[0].tagName.toLowerCase() !== selfTag && $selected.parent().children().length === 1){
							// catch for the previous statement if only one li exists
							return listToList($selected.parent(), selfTag);
						}else if(tagName.match(BLOCKELEMENTS) && !$selected.hasClass('ta-bind')){
							// if it's one of those block elements we have to change the contents
							// if it's a ol/ul we are changing from one to the other
							if(tagName === 'ol' || tagName === 'ul'){
								return listToList($selected, selfTag);
							}else{
								var childBlockElements = false;
								angular.forEach($selected.children(), function(elem){
									if(elem.tagName.match(BLOCKELEMENTS)) {
										childBlockElements = true;
									}
								});
								if(childBlockElements){
									return childElementsToList($selected.children(), $selected, selfTag);
								}else{
									return childElementsToList([angular.element('<div>' + selectedElement.innerHTML + '</div>')[0]], $selected, selfTag);
								}
							}
						}else if(tagName.match(BLOCKELEMENTS)){
							// if we get here then all the contents of the ta-bind are selected
							_nodes = taSelection.getOnlySelectedElements();
							if(_nodes.length === 1 && (_nodes[0].tagName.toLowerCase() === 'ol' || _nodes[0].tagName.toLowerCase() === 'ul')){
								if(_nodes[0].tagName.toLowerCase() === selfTag){
									// remove
									return listToDefault(angular.element(_nodes[0]), taDefaultWrap);
								}else{
									return listToList(angular.element(_nodes[0]), selfTag);
								}
							}else{
								html = '';
								var $nodes = [];
								for(i = 0; i < _nodes.length; i++){
									/* istanbul ignore else: catch for real-world can't make it occur in testing */
									if(_nodes[i].nodeType !== 3){
										var $n = angular.element(_nodes[i]);
										html += '<' + taBrowserTag('li') + '>' + $n[0].innerHTML + '</' + taBrowserTag('li') + '>';
										$nodes.unshift($n);
									}
								}
								$target = angular.element('<' + selfTag + '>' + html + '</' + selfTag + '>');
								$nodes.pop().replaceWith($target);
								angular.forEach($nodes, function($node){ $node.remove(); });
							}
							taSelection.setSelectionToElementEnd($target[0]);
							return;
						}
					}else if(command.toLowerCase() === 'formatblock'){
						var optionsTagName = options.toLowerCase().replace(/[<>]/ig, '');
						if(tagName === 'li') $target = $selected.parent();
						else $target = $selected;
						// find the first blockElement
						while(!$target[0].tagName.match(BLOCKELEMENTS)){
							$target = $target.parent();
							tagName = $target[0].tagName.toLowerCase();
						}
						if(tagName === optionsTagName){
							// $target is wrap element
							_nodes = $target.children();
							var hasBlock = false;
							for(i = 0; i < _nodes.length; i++){
								hasBlock = hasBlock || _nodes[i].tagName.match(BLOCKELEMENTS);
							}
							if(hasBlock){
								$target.after(_nodes);
								next = $target.next();
								$target.remove();
								$target = next;
							}else{
								defaultWrapper.append($target[0].childNodes);
								$target.after(defaultWrapper);
								$target.remove();
								$target = defaultWrapper;
							}
						}else if($target.parent()[0].tagName.toLowerCase() === optionsTagName && !$target.parent().hasClass('ta-bind')){
							//unwrap logic for parent
							var blockElement = $target.parent();
							var contents = blockElement.contents();
							for(i = 0; i < contents.length; i ++){
								/* istanbul ignore next: can't test - some wierd thing with how phantomjs works */
								if(blockElement.parent().hasClass('ta-bind') && contents[i].nodeType === 3){
									defaultWrapper = angular.element('<' + taDefaultWrap + '>');
									defaultWrapper[0].innerHTML = contents[i].outerHTML;
									contents[i] = defaultWrapper[0];
								}
								blockElement.parent()[0].insertBefore(contents[i], blockElement[0]);
							}
							blockElement.remove();
						}else if(tagName.match(LISTELEMENTS)){
							// wrapping a list element
							$target.wrap(options);
						}else{
							// default wrap behaviour
							_nodes = taSelection.getOnlySelectedElements();
							if(_nodes.length === 0) _nodes = [$target[0]];
							// find the parent block element if any of the nodes are inline or text
							var inlineNodePresent = false;
							angular.forEach(_nodes, function(node){
								if(node.nodeType === 3 || !node.tagName.match(BLOCKELEMENTS)){
									inlineNodePresent = true;
								}
							});
							if(inlineNodePresent){
								while(_nodes[0].nodeType === 3 || !_nodes[0].tagName.match(BLOCKELEMENTS)){
									_nodes = [_nodes[0].parentNode];
								}
							}
							if(angular.element(_nodes[0]).hasClass('ta-bind')){
								$target = angular.element(options);
								$target[0].innerHTML = _nodes[0].innerHTML;
								_nodes[0].innerHTML = $target[0].outerHTML;
							}else if(optionsTagName === 'blockquote'){
								// blockquotes wrap other block elements
								html = '';
								for(i = 0; i < _nodes.length; i++){
									html += _nodes[i].outerHTML;
								}
								$target = angular.element(options);
								$target[0].innerHTML = html;
								_nodes[0].parentNode.insertBefore($target[0],_nodes[0]);
								angular.forEach(_nodes, function(node){
									node.parentNode.removeChild(node);
								});
							}
							else {
								// regular block elements replace other block elements
								for(i = 0; i < _nodes.length; i++){
									$target = angular.element(options);
									$target[0].innerHTML = _nodes[i].innerHTML;
									_nodes[i].parentNode.insertBefore($target[0],_nodes[i]);
									_nodes[i].parentNode.removeChild(_nodes[i]);
								}
							}
						}
						taSelection.setSelectionToElementEnd($target[0]);
						return;
					}
				}
				try{
					$document[0].execCommand(command, showUI, options);
				}catch(e){}
			};
		};
	}]).directive('taBind', ['taSanitize', '$timeout', '$window', '$document', 'taFixChrome', 'taBrowserTag', 'taSelection', 'taSelectableElements', 'taApplyCustomRenderers', 'taOptions',
					function(taSanitize, $timeout, $window, $document, taFixChrome, taBrowserTag, taSelection, taSelectableElements, taApplyCustomRenderers, taOptions){
		// Uses for this are textarea or input with ng-model and ta-bind='text'
		// OR any non-form element with contenteditable="contenteditable" ta-bind="html|text" ng-model
		return {
			require: 'ngModel',
			scope: {},
			link: function(scope, element, attrs, ngModel){
				// the option to use taBind on an input or textarea is required as it will sanitize all input into it correctly.
				var _isContentEditable = element.attr('contenteditable') !== undefined && element.attr('contenteditable');
				var _isInputFriendly = _isContentEditable || element[0].tagName.toLowerCase() === 'textarea' || element[0].tagName.toLowerCase() === 'input';
				var _isReadonly = false;
				var _focussed = false;
				var _disableSanitizer = attrs.taUnsafeSanitizer || taOptions.disableSanitizer;
				
				// defaults to the paragraph element, but we need the line-break or it doesn't allow you to type into the empty element
				// non IE is '<p><br/></p>', ie is '<p></p>' as for once IE gets it correct...
				var _defaultVal, _defaultTest;
				// set the default to be a paragraph value
				if(attrs.taDefaultWrap === undefined) attrs.taDefaultWrap = 'p';
				/* istanbul ignore next: ie specific test */
				if(attrs.taDefaultWrap === ''){
					_defaultVal = '';
					_defaultTest = (ie === undefined)? '<div><br></div>' : (ie >= 11)? '<p><br></p>' : (ie <= 8)? '<P>&nbsp;</P>' : '<p>&nbsp;</p>';
				}else{
					_defaultVal = (ie === undefined || ie >= 11)?
						'<' + attrs.taDefaultWrap + '><br></' + attrs.taDefaultWrap + '>' :
						(ie <= 8)?
							'<' + attrs.taDefaultWrap.toUpperCase() + '></' + attrs.taDefaultWrap.toUpperCase() + '>' :
							'<' + attrs.taDefaultWrap + '></' + attrs.taDefaultWrap + '>';
					_defaultTest = (ie === undefined || ie >= 11)?
						'<' + attrs.taDefaultWrap + '><br></' + attrs.taDefaultWrap + '>' :
						(ie <= 8)?
							'<' + attrs.taDefaultWrap.toUpperCase() + '>&nbsp;</' + attrs.taDefaultWrap.toUpperCase() + '>' :
							'<' + attrs.taDefaultWrap + '>&nbsp;</' + attrs.taDefaultWrap + '>';
				}

				element.addClass('ta-bind');

				// in here we are undoing the converts used elsewhere to prevent the < > and & being displayed when they shouldn't in the code.
				var _compileHtml = function(){
					if(_isContentEditable) return element[0].innerHTML;
					if(_isInputFriendly) return element.val();
					throw ('textAngular Error: attempting to update non-editable taBind');
				};
				
				var _setViewValue = function(val){
					if(!val) val = _compileHtml();
					if(val === _defaultTest){
						// this avoids us from tripping the ng-pristine flag if we click in and out with out typing
						if(ngModel.$viewValue !== '') ngModel.$setViewValue('');
					}else{
						if(ngModel.$viewValue !== val) ngModel.$setViewValue(val);
					}
				};
				
				//used for updating when inserting wrapped elements
				scope.$parent['updateTaBind' + (attrs.id || '')] = function(){
					if(!_isReadonly) _setViewValue();
				};
				
				//this code is used to update the models when data is entered/deleted
				if(_isInputFriendly){
					if(!_isContentEditable){
						element.on('paste cut', function(){
							// timeout to next is needed as otherwise the paste/cut event has not finished actually changing the display
							if(!_isReadonly) $timeout(function(){
								ngModel.$setViewValue(_compileHtml());
							}, 0);
						});
						// if a textarea or input just add in change and blur handlers, everything else is done by angulars input directive
						element.on('change blur', function(){
							if(!_isReadonly) ngModel.$setViewValue(_compileHtml());
						});
					}else{
						element.on('cut', function(e){
							// timeout to next is needed as otherwise the paste/cut event has not finished actually changing the display
							if(!_isReadonly)
								$timeout(function(){
									_setViewValue();
								}, 0);
							else e.preventDefault();
						});
						element.on('paste', function(e, eventData){
							/* istanbul ignore else: this is for catching the jqLite testing*/
							if(eventData) angular.extend(e, eventData);
							var text;
							// for non-ie
							if(e.clipboardData || (e.originalEvent && e.originalEvent.clipboardData))
								text = (e.originalEvent || e).clipboardData.getData('text/plain');
							// for ie
							else if($window.clipboardData)
								text = $window.clipboardData.getData('Text');
							// if theres non text data and we aren't in read-only do default
							if(!text && !_isReadonly) return true;
							// prevent the default paste command
							e.preventDefault();
							if(!_isReadonly){
								var _working = angular.element('<div></div>');
								_working[0].innerHTML = text;
								// this strips out all HTML tags
								text = _working.text();
								if ($document[0].selection){
									var range = $document[0].selection.createRange();
									range.pasteHTML(text);
								}
								else{
									$document[0].execCommand('insertText', false, text);
								}
								_setViewValue();
							}
						});

						// all the code specific to cont