angular.module('plunker', ['ngDialog']);



angular.module('plunker').controller('MainCtrl', MainCtrl);

MainCtrl.$inject = ['$scope', 'ngDialog'];

function MainCtrl($scope, ngDialog) {
    $scope.callToAction = function () {
        var modalHeader = 'Visit note';
        var placeholder = 'Leave a comment about the visit that you have just finished.';
        var type = 'Form';

        // Open modal using ngDialog
        ngDialog.open({
            template: 'modal.html',
            controller: 'ModalCtrl',
            controllerAs: 'ctaCtrl',
            width: 520,
            //closeByDocument: false,
            //closeByEscape: false,
            preCloseCallback: function (value) {
                var nestedConfirmDialog = ngDialog.openConfirm({
                    template: 'alert-modal.html',
                    closeByDocument: false,
                    closeByEscape: false,
                    className: 'ngdialog-theme-default',
                    showClose: false,
                    width: 520,
                    data: {
                        modalHeader: 'Discard note?',
                        modalBody: 'Are you sure you want to discard this note?',
                        trueOption: 'Keep',
                        falseOption: 'Discard'
                    }
                });
    
                // NOTE: return the promise from openConfirm
                return nestedConfirmDialog;
            },
            data: {
                type: type,
                placeholder: placeholder,
                modalHeader: modalHeader
            }
        });
    };


    $scope.$on('sendModalForm', function (event, args) {
        /* Do stuff and then... */
        ngDialog.close();
    });
}



angular.module('plunker').controller('ModalCtrl', ModalCtrl);

ModalCtrl.$inject = ['$rootScope'];

function ModalCtrl($rootScope) {
    var vm = this;

    vm.sendModalForm = function (comment) {
        $rootScope.$broadcast('sendModalForm', {comment: comment});
    };
}
<!DOCTYPE html>
<html ng-app="plunker">
    <head>
        <meta charset="utf-8" />
        <title>AngularJS Plunker</title>
        <link rel="stylesheet" href="style.css" />
    </head>

    <body ng-controller="MainCtrl">
        <div class="container">
            <div class="wrapper">
                <a class="button" ng-click="callToAction()">Open ngDialog</a>
            </div>
        </div>

        <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
        <script src="ngDialog.js"></script>
        <script src="app.js"></script>
    </body>
</html>
.container {
    position: relative;
    display: block;
    font-family: 'Lato', Arial, Helvetica, sans-serif;
    margin: 1.25rem auto;
    max-width: 64rem;
}

.wrapper {
    position: relative;
    margin: 0;
}

.button {
    display: block;
    background-color: #FF005B;
    border: 0;
    border-radius: 0.25rem;
    font-size: 1em;
    color: #FFF;
    cursor: pointer;
    outline: none;
    padding: 0.875em;
    text-align: center;
    text-decoration: none;
    text-transform: capitalize;
    margin: 0 auto;
    width: 30%;
}

.button[disabled] {
    background-color: #D8D8D8;
}

textarea {
    display: inline-block;
    background-color: #FFF;
    border: none;
    border-bottom: 1px solid #D8D8D8;
    border-radius: 0;
    font-size: 17px;
    color: #232129;
    outline: none;
    padding: 1.25rem;
    height: 18.75rem;
    width: 100%;
}

textarea:focus {
    border-color: #232129;
    color: #232129;
}

.input-error {
    color: #ECB20A;
}

.link,
.link:visited {
    color: #FF005B;
    cursor: pointer;
    text-decoration: none;
}

.link:active,
.link:visited:active {
    color: #d9004d;
}

.link:hover,
.link:visited:hover {
    color: #ff2674;
    text-decoration: underline;
}

@-webkit-keyframes ngdialog-fadeout {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@keyframes ngdialog-fadeout {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@-webkit-keyframes ngdialog-fadein {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes ngdialog-fadein {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

.ngdialog {
    box-sizing: border-box;
}

.ngdialog *,
.ngdialog *:before,
.ngdialog *:after {
    box-sizing: inherit;
}

.ngdialog {
    position: fixed;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 10000;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    /* fix for Scrollbars not clickable on overflow #552 */
    background: rgba(0, 0, 0, 0.4); 
    animation: ngdialog-fadein 0.5s;
    /* end fix for Scrollbars not clickable on overflow #552 */
    text-align: center;
}

.ngdialog.ngdialog-disabled-animation,
.ngdialog.ngdialog-disabled-animation .ngdialog-overlay,
.ngdialog.ngdialog-disabled-animation .ngdialog-content {
    -webkit-animation: none!important;
    animation: none!important;
}

.ngdialog-overlay {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    -webkit-backface-visibility: hidden;
    -webkit-animation: ngdialog-fadein 0.5s;
    animation: ngdialog-fadein 0.5s;
    /* fix for Scrollbars not clickable on overflow #552 */
    margin-right: 15px;
    background: transparent;
    /* end fix for Scrollbars not clickable on overflow #552 */
}

.ngdialog-no-overlay {
    pointer-events: none;
}

.ngdialog.ngdialog-closing .ngdialog-overlay {
    -webkit-backface-visibility: hidden;
    -webkit-animation: ngdialog-fadeout 0.5s;
    animation: ngdialog-fadeout 0.5s;
}

.ngdialog-content {
    background: white;
    -webkit-backface-visibility: hidden;
    -webkit-animation: ngdialog-fadein 0.5s;
    animation: ngdialog-fadein 0.5s;
    pointer-events: all;
}

.ngdialog.ngdialog-closing .ngdialog-content {
    -webkit-backface-visibility: hidden;
    -webkit-animation: ngdialog-fadeout 0.5s;
    animation: ngdialog-fadeout 0.5s;
}

.ngdialog-close:before {
    font-family: 'Helvetica', Arial, sans-serif;
    content: '\00D7';
    cursor: pointer;
}

html.ngdialog-open,
body.ngdialog-open {
    overflow: hidden;
}

@-webkit-keyframes ngdialog-flyin {
    0% {
        opacity: 0;
        -webkit-transform: translateY(-40px);
        transform: translateY(-40px);
    }

    100% {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@keyframes ngdialog-flyin {
    0% {
        opacity: 0;
        -webkit-transform: translateY(-40px);
        transform: translateY(-40px);
    }

    100% {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@-webkit-keyframes ngdialog-flyout {
    0% {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        -webkit-transform: translateY(-40px);
        transform: translateY(-40px);
    }
}

@keyframes ngdialog-flyout {
    0% {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        -webkit-transform: translateY(-40px);
        transform: translateY(-40px);
    }
}

.ngdialog.ngdialog-theme-default {
    padding-bottom: 160px;
    padding-top: 160px;
}

.ngdialog.ngdialog-theme-default.ngdialog-closing .ngdialog-content {
    -webkit-animation: ngdialog-flyout .5s;
    animation: ngdialog-flyout .5s;
}

.ngdialog.ngdialog-theme-default .ngdialog-content {
    -webkit-animation: ngdialog-flyin .5s;
    animation: ngdialog-flyin .5s;
    background: #f0f0f0;
    border-radius: 5px;
    color: #444;
    font-family: 'Helvetica',sans-serif;
    font-size: 1.1em;
    line-height: 1.5em;
    margin: 0 auto;
    max-width: 100%;
    padding: 1em;
    position: relative;
    width: 450px;
}

.ngdialog.ngdialog-theme-default .ngdialog-close {
    border: none;
    background: transparent;
    cursor: pointer;
    position: absolute;
    right: 0;
    top: 0;
}

.ngdialog.ngdialog-theme-default .ngdialog-close:before {
    display: block;
    padding: 3px;
    background: transparent;
    color: #bbb;
    content: '\00D7';
    font-size: 26px;
    font-weight: 400;
    line-height: 26px;
    text-align: center;
}

.ngdialog.ngdialog-theme-default .ngdialog-close:hover:before,
.ngdialog.ngdialog-theme-default .ngdialog-close:active:before {
    color: #777;
}

.ngdialog.ngdialog-theme-default .ngdialog-message {
    margin-bottom: .5em;
}

.ngdialog.ngdialog-theme-default .ngdialog-input {
    margin-bottom: 1em;
}

.ngdialog.ngdialog-theme-default .ngdialog-input textarea,
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="text"],
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="password"],
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="email"],
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="url"] {
    background: #fff;
    border: 0;
    border-radius: 3px;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    margin: 0 0 .25em;
    min-height: 2.5em;
    padding: .25em .67em;
    width: 100%;
}

.ngdialog.ngdialog-theme-default .ngdialog-input textarea:focus,
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="text"]:focus,
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="password"]:focus,
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="email"]:focus,
.ngdialog.ngdialog-theme-default .ngdialog-input input[type="url"]:focus {
    box-shadow: inset 0 0 0 2px #8dbdf1;
    outline: none;
}

.ngdialog.ngdialog-theme-default .ngdialog-buttons {
    *zoom: 1;
}

.ngdialog.ngdialog-theme-default .ngdialog-buttons:after {
    content: '';
    display: table;
    clear: both;
}

.ngdialog.ngdialog-theme-default .ngdialog-button {
    border: 0;
    border-radius: 3px;
    cursor: pointer;
    float: right;
    font-family: inherit;
    font-size: .8em;
    letter-spacing: .1em;
    line-height: 1em;
    margin: 0 0 0 .5em;
    padding: .75em 2em;
    text-transform: uppercase;
}

.ngdialog.ngdialog-theme-default .ngdialog-button:focus {
    -webkit-animation: ngdialog-pulse 1.1s infinite;
    animation: ngdialog-pulse 1.1s infinite;
    outline: none;
}

@media (max-width: 568px) {
    .ngdialog.ngdialog-theme-default .ngdialog-button:focus {
        -webkit-animation: none;
        animation: none;
    }
}

.ngdialog.ngdialog-theme-default .ngdialog-button.ngdialog-button-primary {
    background: #3288e6;
    color: #fff;
}

.ngdialog.ngdialog-theme-default .ngdialog-button.ngdialog-button-secondary {
    background: #e0e0e0;
    color: #777;
}
<article class="modalContainer commentsModal">
    <h2 class="modalHeader heading3">
        {{ ngDialogData.modalHeader }}
    </h2>

    <div class="modalBody">
        <form
            class="commentsForm"
            name="commentsForm"
            ng-submit="ctaCtrl.sendModalForm(ctaCtrl.userComment)"
            novalidate
            autocomplete="off"
        >
            <div class="formField">
                <textarea
                    name="userComment"
                    class="textareaComments"
                    autofocus="autofocus"
                    placeholder="{{ ngDialogData.placeholder }}"
                    ng-model="ctaCtrl.userComment"
                    ng-minlength="20"
                    required
                >
                    {{ ngDialogData.modalComment }}
                </textarea>
                <div class="input-errors-container" ng-show="commentsForm.userComment.$dirty && commentsForm.userComment.$invalid">
                    <span class="input-error" ng-show="commentsForm.userComment.$error.required">Please leave a comment about your recent visit.</span>
                    <span class="input-error" ng-show="commentsForm.userComment.$error.minlength">The comment must be at least 20 characters long.</span>
                </div>
            </div>
            <button class="button submitButton" type="submit" ng-disabled="commentsForm.$pristine">Submit Comment</button>
        </form>
    </div>
</article>
/**
 * @module ngDialog
 * @namespace ngDialog
 * 
 * @description
 * Modals and popups provider for Angular.js applications. No dependencies. Highly customizable.
 * UPGRADE NOTES:
 * 1. Closure <button> modified into an <a>
 * 
 * {@link http://likeastore.github.io/ngDialog/}
 * @version ngDialog - v1.3.0 - 2017-05-22
 */

(function (root, factory) {
    'use strict';

    if (typeof module !== 'undefined' && module.exports) {
        // CommonJS
        if (typeof angular === 'undefined') {
            factory(require('angular'));
        } else {
            factory(angular);
        }
        module.exports = 'ngDialog';
    } else if (typeof define === 'function' && define.amd) {
        // AMD
        define(['angular'], factory);
    } else {
        // Global Variables
        factory(root.angular);
    }
}(this, function (angular) {
    'use strict';

    var m = angular.module('ngDialog', []);

    var $el = angular.element;
    var isDef = angular.isDefined;
    var style = (document.body || document.documentElement).style;
    var animationEndSupport = isDef(style.animation) || isDef(style.WebkitAnimation) || isDef(style.MozAnimation) || isDef(style.MsAnimation) || isDef(style.OAnimation);
    var animationEndEvent = 'animationend webkitAnimationEnd mozAnimationEnd MSAnimationEnd oanimationend';
    var focusableElementSelector = 'a[href], area[href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), iframe, object, embed, *[tabindex], *[contenteditable]';
    var disabledAnimationClass = 'ngdialog-disabled-animation';
    var forceElementsReload = { html: false, body: false };
    var scopes = {};
    var openIdStack = [];
    var activeBodyClasses = [];
    var keydownIsBound = false;
    var openOnePerName = false;
    var closeByNavigationDialogStack = [];

    var UI_ROUTER_VERSION_LEGACY = 'legacy';
    var UI_ROUTER_VERSION_ONE_PLUS = '1.0.0+';

    m.provider('ngDialog', function () {
        var defaults = this.defaults = {
            className: 'ngdialog-theme-default',
            appendClassName: '',
            disableAnimation: false,
            plain: false,
            showClose: true,
            closeByDocument: true,
            closeByEscape: true,
            closeByNavigation: false,
            appendTo: false,
            preCloseCallback: false,
            onOpenCallback: false,
            overlay: true,
            cache: true,
            trapFocus: true,
            preserveFocus: true,
            ariaAuto: true,
            ariaRole: null,
            ariaLabelledById: null,
            ariaLabelledBySelector: null,
            ariaDescribedById: null,
            ariaDescribedBySelector: null,
            bodyClassName: 'ngdialog-open',
            width: null,
            height: null
        };

        this.setForceHtmlReload = function (_useIt) {
            forceElementsReload.html = _useIt || false;
        };

        this.setForceBodyReload = function (_useIt) {
            forceElementsReload.body = _useIt || false;
        };

        this.setDefaults = function (newDefaults) {
            angular.extend(defaults, newDefaults);
        };

        this.setOpenOnePerName = function (isOpenOne) {
            openOnePerName = isOpenOne || false;
        };

        var globalID = 0, dialogsCount = 0, closeByDocumentHandler, defers = {};

        this.$get = ['$document', '$templateCache', '$compile', '$q', '$http', '$rootScope', '$timeout', '$window', '$controller', '$injector',
            function ($document, $templateCache, $compile, $q, $http, $rootScope, $timeout, $window, $controller, $injector) {
                var $elements = [];

                var privateMethods = {
                    onDocumentKeydown: function (event) {
                        if (event.keyCode === 27) {
                            publicMethods.close('$escape');
                        }
                    },

                    activate: function($dialog) {
                        var options = $dialog.data('$ngDialogOptions');

                        if (options.trapFocus) {
                            $dialog.on('keydown', privateMethods.onTrapFocusKeydown);

                            // Catch rogue changes (eg. after unfocusing everything by clicking a non-focusable element)
                            $elements.body.on('keydown', privateMethods.onTrapFocusKeydown);
                        }
                    },

                    deactivate: function ($dialog) {
                        $dialog.off('keydown', privateMethods.onTrapFocusKeydown);
                        $elements.body.off('keydown', privateMethods.onTrapFocusKeydown);
                    },

                    deactivateAll: function (els) {
                        angular.forEach(els,function(el) {
                            var $dialog = angular.element(el);
                            privateMethods.deactivate($dialog);
                        });
                    },

                    setBodyPadding: function (width) {
                        var originalBodyPadding = parseInt(($elements.body.css('padding-right') || 0), 10);
                        $elements.body.css('padding-right', (originalBodyPadding + width) + 'px');
                        $elements.body.data('ng-dialog-original-padding', originalBodyPadding);
                        $rootScope.$broadcast('ngDialog.setPadding', width);
                    },

                    resetBodyPadding: function () {
                        var originalBodyPadding = $elements.body.data('ng-dialog-original-padding');
                        if (originalBodyPadding) {
                            $elements.body.css('padding-right', originalBodyPadding + 'px');
                        } else {
                            $elements.body.css('padding-right', '');
                        }
                        $rootScope.$broadcast('ngDialog.setPadding', 0);
                    },

                    performCloseDialog: function ($dialog, value) {
                        var options = $dialog.data('$ngDialogOptions');
                        var id = $dialog.attr('id');
                        var scope = scopes[id];
                        privateMethods.deactivate($dialog);

                        if (!scope) {
                            // Already closed
                            return;
                        }

                        if (typeof $window.Hammer !== 'undefined') {
                            var hammerTime = scope.hammerTime;
                            hammerTime.off('tap', closeByDocumentHandler);
                            hammerTime.destroy && hammerTime.destroy();
                            delete scope.hammerTime;
                        } else {
                            $dialog.unbind('click');
                        }

                        if (dialogsCount === 1) {
                            $elements.body.unbind('keydown', privateMethods.onDocumentKeydown);
                        }

                        if (!$dialog.hasClass('ngdialog-closing')){
                            dialogsCount -= 1;
                        }

                        var previousFocus = $dialog.data('$ngDialogPreviousFocus');
                        if (previousFocus && previousFocus.focus) {
                            previousFocus.focus();
                        }

                        $rootScope.$broadcast('ngDialog.closing', $dialog, value);
                        dialogsCount = dialogsCount < 0 ? 0 : dialogsCount;
                        if (animationEndSupport && !options.disableAnimation) {
                            scope.$destroy();
                            $dialog.unbind(animationEndEvent).bind(animationEndEvent, function () {
                                privateMethods.closeDialogElement($dialog, value);
                            }).addClass('ngdialog-closing');
                        } else {
                            scope.$destroy();
                            privateMethods.closeDialogElement($dialog, value);
                        }
                        if (defers[id]) {
                            defers[id].resolve({
                                id: id,
                                value: value,
                                $dialog: $dialog,
                                remainingDialogs: dialogsCount
                            });
                            delete defers[id];
                        }
                        if (scopes[id]) {
                            delete scopes[id];
                        }
                        openIdStack.splice(openIdStack.indexOf(id), 1);
                        if (!openIdStack.length) {
                            $elements.body.unbind('keydown', privateMethods.onDocumentKeydown);
                            keydownIsBound = false;
                        }

                        if (dialogsCount == 0)
                        {
                            closeByDocumentHandler = undefined;
                        }
                    },

                    closeDialogElement: function($dialog, value) {
                        var options = $dialog.data('$ngDialogOptions');
                        $dialog.remove();

                        activeBodyClasses.splice(activeBodyClasses.indexOf(options.bodyClassName), 1);
                        if (activeBodyClasses.indexOf(options.bodyClassName) === -1) {
                            $elements.html.removeClass(options.bodyClassName);
                            $elements.body.removeClass(options.bodyClassName);
                        }

                        if (dialogsCount === 0) {
                            privateMethods.resetBodyPadding();
                        }

                        $rootScope.$broadcast('ngDialog.closed', $dialog, value);
                    },

                    closeDialog: function ($dialog, value) {
                        var preCloseCallback = $dialog.data('$ngDialogPreCloseCallback');

                        if (preCloseCallback && angular.isFunction(preCloseCallback)) {

                            var preCloseCallbackResult = preCloseCallback.call($dialog, value);

                            if (angular.isObject(preCloseCallbackResult)) {
                                if (preCloseCallbackResult.closePromise) {
                                    preCloseCallbackResult.closePromise.then(function () {
                                        privateMethods.performCloseDialog($dialog, value);
                                    }, function () {
                                        return false;
                                    });
                                } else {
                                    preCloseCallbackResult.then(function () {
                                        privateMethods.performCloseDialog($dialog, value);
                                    }, function () {
                                        return false;
                                    });
                                }
                            } else if (preCloseCallbackResult !== false) {
                                privateMethods.performCloseDialog($dialog, value);
                            } else {
                                return false;
                            }
                        } else {
                            privateMethods.performCloseDialog($dialog, value);
                        }
                    },

                    onTrapFocusKeydown: function(ev) {
                        var el = angular.element(ev.currentTarget);
                        var $dialog;

                        if (el.hasClass('ngdialog')) {
                            $dialog = el;
                        } else {
                            $dialog = privateMethods.getActiveDialog();

                            if ($dialog === null) {
                                return;
                            }
                        }

                        var isTab = (ev.keyCode === 9);
                        var backward = (ev.shiftKey === true);

                        if (isTab) {
                            privateMethods.handleTab($dialog, ev, backward);
                        }
                    },

                    handleTab: function($dialog, ev, backward) {
                        var focusableElements = privateMethods.getFocusableElements($dialog);

                        if (focusableElements.length === 0) {
                            if (document.activeElement && document.activeElement.blur) {
                                document.activeElement.blur();
                            }
                            return;
                        }

                        var currentFocus = document.activeElement;
                        var focusIndex = Array.prototype.indexOf.call(focusableElements, currentFocus);

                        var isFocusIndexUnknown = (focusIndex === -1);
                        var isFirstElementFocused = (focusIndex === 0);
                        var isLastElementFocused = (focusIndex === focusableElements.length - 1);

                        var cancelEvent = false;

                        if (backward) {
                            if (isFocusIndexUnknown || isFirstElementFocused) {
                                focusableElements[focusableElements.length - 1].focus();
                                cancelEvent = true;
                            }
                        } else {
                            if (isFocusIndexUnknown || isLastElementFocused) {
                                focusableElements[0].focus();
                                cancelEvent = true;
                            }
                        }

                        if (cancelEvent) {
                            ev.preventDefault();
                            ev.stopPropagation();
                        }
                    },

                    autoFocus: function($dialog) {
                        var dialogEl = $dialog[0];

                        // Browser's (Chrome 40, Forefix 37, IE 11) don't appear to honor autofocus on the dialog, but we should
                        var autoFocusEl = dialogEl.querySelector('*[autofocus]');
                        if (autoFocusEl !== null) {
                            autoFocusEl.focus();

                            if (document.activeElement === autoFocusEl) {
                                return;
                            }

                            // Autofocus element might was display: none, so let's continue
                        }

                        var focusableElements = privateMethods.getFocusableElements($dialog);

                        if (focusableElements.length > 0) {
                            focusableElements[0].focus();
                            return;
                        }

                        // We need to focus something for the screen readers to notice the dialog
                        var contentElements = privateMethods.filterVisibleElements(dialogEl.querySelectorAll('h1,h2,h3,h4,h5,h6,p,span'));

                        if (contentElements.length > 0) {
                            var contentElement = contentElements[0];
                            $el(contentElement).attr('tabindex', '-1').css('outline', '0');
                            contentElement.focus();
                        }
                    },

                    getFocusableElements: function ($dialog) {
                        var dialogEl = $dialog[0];

                        var rawElements = dialogEl.querySelectorAll(focusableElementSelector);

                        // Ignore untabbable elements, ie. those with tabindex = -1
                        var tabbableElements = privateMethods.filterTabbableElements(rawElements);

                        return privateMethods.filterVisibleElements(tabbableElements);
                    },

                    filterTabbableElements: function (els) {
                        var tabbableFocusableElements = [];

                        for (var i = 0; i < els.length; i++) {
                            var el = els[i];

                            if ($el(el).attr('tabindex') !== '-1') {
                                tabbableFocusableElements.push(el);
                            }
                        }

                        return tabbableFocusableElements;
                    },

                    filterVisibleElements: function (els) {
                        var visibleFocusableElements = [];

                        for (var i = 0; i < els.length; i++) {
                            var el = els[i];

                            if (el.offsetWidth > 0 || el.offsetHeight > 0) {
                                visibleFocusableElements.push(el);
                            }
                        }

                        return visibleFocusableElements;
                    },

                    getActiveDialog: function () {
                        var dialogs = document.querySelectorAll('.ngdialog');

                        if (dialogs.length === 0) {
                            return null;
                        }

                        // TODO: This might be incorrect if there are a mix of open dialogs with different 'appendTo' values
                        return $el(dialogs[dialogs.length - 1]);
                    },

                    applyAriaAttributes: function ($dialog, options) {
                        if (options.ariaAuto) {
                            if (!options.ariaRole) {
                                var detectedRole = (privateMethods.getFocusableElements($dialog).length > 0) ?
                                    'dialog' :
                                    'alertdialog';

                                options.ariaRole = detectedRole;
                            }

                            if (!options.ariaLabelledBySelector) {
                                options.ariaLabelledBySelector = 'h1,h2,h3,h4,h5,h6';
                            }

                            if (!options.ariaDescribedBySelector) {
                                options.ariaDescribedBySelector = 'article,section,p';
                            }
                        }

                        if (options.ariaRole) {
                            $dialog.attr('role', options.ariaRole);
                        }

                        privateMethods.applyAriaAttribute(
                            $dialog, 'aria-labelledby', options.ariaLabelledById, options.ariaLabelledBySelector);

                        privateMethods.applyAriaAttribute(
                            $dialog, 'aria-describedby', options.ariaDescribedById, options.ariaDescribedBySelector);
                    },

                    applyAriaAttribute: function($dialog, attr, id, selector) {
                        if (id) {
                            $dialog.attr(attr, id);
                            return;
                        }

                        if (selector) {
                            var dialogId = $dialog.attr('id');

                            var firstMatch = $dialog[0].querySelector(selector);

                            if (!firstMatch) {
                                return;
                            }

                            var generatedId = dialogId + '-' + attr;

                            $el(firstMatch).attr('id', generatedId);

                            $dialog.attr(attr, generatedId);

                            return generatedId;
                        }
                    },

                    detectUIRouter: function() {
                        // Detect if ui-router module is installed
                        // Returns ui-router version string if installed
                        // Otherwise false

                        if ($injector.has('$transitions')) {
                            // Only 1.0.0+ ui.router allows us to inject $transitions
                            return UI_ROUTER_VERSION_ONE_PLUS;
                        }
                        else if ($injector.has('$state')) {
                            // The legacy ui.router allows us to inject $state
                            return UI_ROUTER_VERSION_LEGACY;
                        }
                        return false;
                    },

                    getRouterLocationEventName: function() {
                        if (privateMethods.detectUIRouter()) {
                            return '$stateChangeStart';
                        }
                        return '$locationChangeStart';
                    }
                };

                var publicMethods = {
                    __PRIVATE__: privateMethods,

                    /*
                     * @param {Object} options:
                     * - template {String} - id of ng-template, url for partial, plain string (if enabled)
                     * - plain {Boolean} - enable plain string templates, default false
                     * - scope {Object}
                     * - controller {String}
                     * - controllerAs {String}
                     * - className {String} - dialog theme class
                     * - appendClassName {String} - dialog theme class to be appended to defaults
                     * - disableAnimation {Boolean} - set to true to disable animation
                     * - showClose {Boolean} - show close button, default true
                     * - closeByEscape {Boolean} - default true
                     * - closeByDocument {Boolean} - default true
                     * - preCloseCallback {String|Function} - user supplied function name/function called before closing dialog (if set)
                     * - onOpenCallback {String|Function} - user supplied function name/function called after opening dialog (if set)
                     * - bodyClassName {String} - class added to body at open dialog
                     * @return {Object} dialog
                     */
                    open: function (opts) {
                        var dialogID = null;
                        opts = opts || {};
                        if (openOnePerName && opts.name) {
                            dialogID = opts.name.toLowerCase().replace(/\s/g, '-') + '-dialog';
                            if (this.isOpen(dialogID)) {
                                return;
                            }
                        }
                        var options = angular.copy(defaults);
                        var localID = ++globalID;
                        dialogID = dialogID || 'ngdialog' + localID;
                        openIdStack.push(dialogID);

                        // Merge opts.data with predefined via setDefaults
                        if (typeof options.data !== 'undefined') {
                            if (typeof opts.data === 'undefined') {
                                opts.data = {};
                            }
                            opts.data = angular.merge(angular.copy(options.data), opts.data);
                        }

                        angular.extend(options, opts);

                        var defer;
                        defers[dialogID] = defer = $q.defer();

                        var scope;
                        scopes[dialogID] = scope = angular.isObject(options.scope) ? options.scope.$new() : $rootScope.$new();

                        var $dialog, $dialogParent, $dialogContent;

                        var resolve = angular.extend({}, options.resolve);

                        angular.forEach(resolve, function (value, key) {
                            resolve[key] = angular.isString(value) ? $injector.get(value) : $injector.invoke(value, null, null, key);
                        });

                        $q.all({
                            template: loadTemplate(options.template || options.templateUrl),
                            locals: $q.all(resolve)
                        }).then(function (setup) {
                            var template = setup.template,
                                locals = setup.locals;

                            if (options.showClose) {
                                template += '<a aria-label="Dismiss" class="ngdialog-close"></a>';
                            }

                            var hasOverlayClass = options.overlay ? '' : ' ngdialog-no-overlay';
                            $dialog = $el('<div id="' + dialogID + '" class="ngdialog' + hasOverlayClass + '"></div>');
                            $dialog.html((options.overlay ?
                                '<div class="ngdialog-overlay"></div><div class="ngdialog-content" role="document">' + template + '</div>' :
                                '<div class="ngdialog-content" role="document">' + template + '</div>'));

                            $dialog.data('$ngDialogOptions', options);

                            scope.ngDialogId = dialogID;

                            if (options.data && angular.isString(options.data)) {
                                var firstLetter = options.data.replace(/^\s*/, '')[0];
                                scope.ngDialogData = (firstLetter === '{' || firstLetter === '[') ? angular.fromJson(options.data) : new String(options.data);
                                scope.ngDialogData.ngDialogId = dialogID;
                            } else if (options.data && angular.isObject(options.data)) {
                                scope.ngDialogData = options.data;
                                scope.ngDialogData.ngDialogId = dialogID;
                            }

                            if (options.className) {
                                $dialog.addClass(options.className);
                            }

                            if (options.appendClassName) {
                                $dialog.addClass(options.appendClassName);
                            }

                            if (options.width) {
                                $dialogContent = $dialog[0].querySelector('.ngdialog-content');
                                if (angular.isString(options.width)) {
                                    $dialogContent.style.width = options.width;
                                } else {
                                    $dialogContent.style.width = options.width + 'px';
                                }
                            }

                            if (options.height) {
                                $dialogContent = $dialog[0].querySelector('.ngdialog-content');
                                if (angular.isString(options.height)) {
                                    $dialogContent.style.height = options.height;
                                } else {
                                    $dialogContent.style.height = options.height + 'px';
                                }
                            }

                            if (options.disableAnimation) {
                                $dialog.addClass(disabledAnimationClass);
                            }

                            if (options.appendTo && angular.isString(options.appendTo)) {
                                $dialogParent = angular.element(document.querySelector(options.appendTo));
                            } else {
                                $dialogParent = $elements.body;
                            }

                            privateMethods.applyAriaAttributes($dialog, options);

                            [
                                { name: '$ngDialogPreCloseCallback', value: options.preCloseCallback },
                                { name: '$ngDialogOnOpenCallback', value: options.onOpenCallback }
                            ].forEach(function (option) {
                                if (option.value) {
                                    var callback;

                                    if (angular.isFunction(option.value)) {
                                        callback = option.value;
                                    } else if (angular.isString(option.value)) {
                                        if (scope) {
                                            if (angular.isFunction(scope[option.value])) {
                                                callback = scope[option.value];
                                            } else if (scope.$parent && angular.isFunction(scope.$parent[option.value])) {
                                                callback = scope.$parent[option.value];
                                            } else if ($rootScope && angular.isFunction($rootScope[option.value])) {
                                                callback = $rootScope[option.value];
                                            }
                                        }
                                    }

                                    if (callback) {
                                        $dialog.data(option.name, callback);
                                    }
                                }
                            });

                            scope.closeThisDialog = function (value) {
                                privateMethods.closeDialog($dialog, value);
                            };

                            if (options.controller && (angular.isString(options.controller) || angular.isArray(options.controller) || angular.isFunction(options.controller))) {

                                var label;

                                if (options.controllerAs && angular.isString(options.controllerAs)) {
                                    label = options.controllerAs;
                                }

                                var controllerInstance = $controller(options.controller, angular.extend(
                                    locals,
                                    {
                                        $scope: scope,
                                        $element: $dialog
                                    }),
                                    true,
                                    label
                                );

                                if(options.bindToController) {
                                    angular.extend(controllerInstance.instance, {ngDialogId: scope.ngDialogId, ngDialogData: scope.ngDialogData, closeThisDialog: scope.closeThisDialog, confirm: scope.confirm});
                                }

                                if(typeof controllerInstance === 'function'){
                                    $dialog.data('$ngDialogControllerController', controllerInstance());
                                } else {
                                    $dialog.data('$ngDialogControllerController', controllerInstance);
                                }
                            }

                            $timeout(function () {
                                var $activeDialogs = document.querySelectorAll('.ngdialog');
                                privateMethods.deactivateAll($activeDialogs);

                                $compile($dialog)(scope);
                                var widthDiffs = $window.innerWidth - $elements.body.prop('clientWidth');
                                $elements.html.addClass(options.bodyClassName);
                                $elements.body.addClass(options.bodyClassName);
                                activeBodyClasses.push(options.bodyClassName);
                                var scrollBarWidth = widthDiffs - ($window.innerWidth - $elements.body.prop('clientWidth'));
                                if (scrollBarWidth > 0) {
                                    privateMethods.setBodyPadding(scrollBarWidth);
                                }
                                $dialogParent.append($dialog);

                                privateMethods.activate($dialog);

                                if (options.trapFocus) {
                                    privateMethods.autoFocus($dialog);
                                }

                                if (options.name) {
                                    $rootScope.$broadcast('ngDialog.opened', {dialog: $dialog, name: options.name});
                                } else {
                                    $rootScope.$broadcast('ngDialog.opened', $dialog);
                                }
                                var onOpenCallback = $dialog.data('$ngDialogOnOpenCallback');
                                if (onOpenCallback && angular.isFunction(onOpenCallback)) {
                                    onOpenCallback.call($dialog);
                                }

                            });

                            if (!keydownIsBound) {
                                $elements.body.bind('keydown', privateMethods.onDocumentKeydown);
                                keydownIsBound = true;
                            }

                            if (options.closeByNavigation) {
                                closeByNavigationDialogStack.push($dialog);
                            }

                            if (options.preserveFocus) {
                                $dialog.data('$ngDialogPreviousFocus', document.activeElement);
                            }

                            closeByDocumentHandler = function (event) {
                                var isOverlay = options.closeByDocument ? $el(event.target).hasClass('ngdialog-overlay') : false;
                                var isCloseBtn = $el(event.target).hasClass('ngdialog-close');

                                if (isOverlay || isCloseBtn) {
                                    publicMethods.close($dialog.attr('id'), isCloseBtn ? '$closeButton' : '$document');
                                }
                            };

                            if (typeof $window.Hammer !== 'undefined') {
                                var hammerTime = scope.hammerTime = $window.Hammer($dialog[0]);
                                hammerTime.on('tap', closeByDocumentHandler);
                            } else {
                                $dialog.bind('click', closeByDocumentHandler);
                            }

                            dialogsCount += 1;

                            return publicMethods;
                        });

                        return {
                            id: dialogID,
                            closePromise: defer.promise,
                            close: function (value) {
                                privateMethods.closeDialog($dialog, value);
                            }
                        };

                        function loadTemplateUrl (tmpl, config) {
                            var config = config || {};
                            config.headers = config.headers || {};

                            angular.extend(config.headers, {'Accept': 'text/html'});

                            $rootScope.$broadcast('ngDialog.templateLoading', tmpl);
                            return $http.get(tmpl, config).then(function(res) {
                                $rootScope.$broadcast('ngDialog.templateLoaded', tmpl);
                                return res.data || '';
                            });
                        }

                        function loadTemplate (tmpl) {
                            if (!tmpl) {
                                return 'Empty template';
                            }

                            if (angular.isString(tmpl) && options.plain) {
                                return tmpl;
                            }

                            if (typeof options.cache === 'boolean' && !options.cache) {
                                return loadTemplateUrl(tmpl, {cache: false});
                            }

                            return loadTemplateUrl(tmpl, {cache: $templateCache});
                        }
                    },

                    /*
                     * @param {Object} options:
                     * - template {String} - id of ng-template, url for partial, plain string (if enabled)
                     * - plain {Boolean} - enable plain string templates, default false
                     * - name {String}
                     * - scope {Object}
                     * - controller {String}
                     * - controllerAs {String}
                     * - className {String} - dialog theme class
                     * - appendClassName {String} - dialog theme class to be appended to defaults
                     * - showClose {Boolean} - show close button, default true
                     * - closeByEscape {Boolean} - default false
                     * - closeByDocument {Boolean} - default false
                     * - preCloseCallback {String|Function} - user supplied function name/function called before closing dialog (if set); not called on confirm
                     * - bodyClassName {String} - class added to body at open dialog
                     *
                     * @return {Object} dialog
                     */
                    openConfirm: function (opts) {
                        var defer = $q.defer();
                        var options = angular.copy(defaults);

                        opts = opts || {};

                        // Merge opts.data with predefined via setDefaults
                        if (typeof options.data !== 'undefined') {
                            if (typeof opts.data === 'undefined') {
                                opts.data = {};
                            }
                            opts.data = angular.merge(angular.copy(options.data), opts.data);
                        }

                        angular.extend(options, opts);

                        options.scope = angular.isObject(options.scope) ? options.scope.$new() : $rootScope.$new();
                        options.scope.confirm = function (value) {
                            defer.resolve(value);
                            var $dialog = $el(document.getElementById(openResult.id));
                            privateMethods.performCloseDialog($dialog, value);
                        };

                        var openResult = publicMethods.open(options);
                        if (openResult) {
                            openResult.closePromise.then(function (data) {
                                if (data) {
                                    return defer.reject(data.value);
                                }
                                return defer.reject();
                            });
                            return defer.promise;
                        }
                    },

                    isOpen: function(id) {
                        var $dialog = $el(document.getElementById(id));
                        return $dialog.length > 0;
                    },

                    /*
                     * @param {String} id
                     * @return {Object} dialog
                     */
                    close: function (id, value) {
                        var $dialog = $el(document.getElementById(id));

                        if ($dialog.length) {
                            privateMethods.closeDialog($dialog, value);
                        } else {
                            if (id === '$escape') {
                                var topDialogId = openIdStack[openIdStack.length - 1];
                                $dialog = $el(document.getElementById(topDialogId));
                                if ($dialog.data('$ngDialogOptions').closeByEscape) {
                                    privateMethods.closeDialog($dialog, '$escape');
                                }
                            } else {
                                publicMethods.closeAll(value);
                            }
                        }

                        return publicMethods;
                    },

                    closeAll: function (value) {
                        var $all = document.querySelectorAll('.ngdialog');

                        // Reverse order to ensure focus restoration works as expected
                        for (var i = $all.length - 1; i >= 0; i--) {
                            var dialog = $all[i];
                            privateMethods.closeDialog($el(dialog), value);
                        }
                    },

                    getOpenDialogs: function() {
                        return openIdStack;
                    },

                    getDefaults: function () {
                        return defaults;
                    }
                };

                angular.forEach(
                    ['html', 'body'],
                    function(elementName) {
                        $elements[elementName] = $document.find(elementName);
                        if (forceElementsReload[elementName]) {
                            var eventName = privateMethods.getRouterLocationEventName();
                            $rootScope.$on(eventName, function () {
                                $elements[elementName] = $document.find(elementName);
                            });
                        }
                    }
                );

                // Listen to navigation events to close dialog
                var uiRouterVersion = privateMethods.detectUIRouter();
                if (uiRouterVersion === UI_ROUTER_VERSION_ONE_PLUS) {
                    var $transitions = $injector.get('$transitions');
                    $transitions.onStart({}, function (trans) {
                        while (closeByNavigationDialogStack.length > 0) {
                            var toCloseDialog = closeByNavigationDialogStack.pop();
                            if (privateMethods.closeDialog(toCloseDialog) === false) {
                                return false;
                            }
                        }
                    });
                }
                else {
                    var eventName = uiRouterVersion === UI_ROUTER_VERSION_LEGACY ? '$stateChangeStart' : '$locationChangeStart';
                    $rootScope.$on(eventName, function ($event) {
                        while (closeByNavigationDialogStack.length > 0) {
                            var toCloseDialog = closeByNavigationDialogStack.pop();
                            if (privateMethods.closeDialog(toCloseDialog) === false) {
                                $event.preventDefault();
                            }
                        }
                    });
                }

                return publicMethods;
            }];
    });

    m.directive('ngDialog', ['ngDialog', function (ngDialog) {
        return {
            restrict: 'A',
            scope: {
                ngDialogScope: '='
            },
            link: function (scope, elem, attrs) {
                elem.on('click', function (e) {
                    e.preventDefault();

                    var ngDialogScope = angular.isDefined(scope.ngDialogScope) ? scope.ngDialogScope : 'noScope';
                    angular.isDefined(attrs.ngDialogClosePrevious) && ngDialog.close(attrs.ngDialogClosePrevious);

                    var defaults = ngDialog.getDefaults();

                    ngDialog.open({
                        template: attrs.ngDialog,
                        className: attrs.ngDialogClass || defaults.className,
                        appendClassName: attrs.ngDialogAppendClass,
                        controller: attrs.ngDialogController,
                        controllerAs: attrs.ngDialogControllerAs,
                        bindToController: attrs.ngDialogBindToController,
                        disableAnimation: attrs.ngDialogDisableAnimation,
                        scope: ngDialogScope,
                        data: attrs.ngDialogData,
                        showClose: attrs.ngDialogShowClose === 'false' ? false : (attrs.ngDialogShowClose === 'true' ? true : defaults.showClose),
                        closeByDocument: attrs.ngDialogCloseByDocument === 'false' ? false : (attrs.ngDialogCloseByDocument === 'true' ? true : defaults.closeByDocument),
                        closeByEscape: attrs.ngDialogCloseByEscape === 'false' ? false : (attrs.ngDialogCloseByEscape === 'true' ? true : defaults.closeByEscape),
                        overlay: attrs.ngDialogOverlay === 'false' ? false : (attrs.ngDialogOverlay === 'true' ? true : defaults.overlay),
                        preCloseCallback: attrs.ngDialogPreCloseCallback || defaults.preCloseCallback,
                        onOpenCallback: attrs.ngDialogOnOpenCallback || defaults.onOpenCallback,
                        bodyClassName: attrs.ngDialogBodyClass || defaults.bodyClassName
                    });
                });
            }
        };
    }]);

    return m;
}));
<article class="modalContainer alertModal">
    <h2 class="modalHeader heading3">
        {{ ngDialogData.modalHeader }}
    </h2>

    <div class="modalBody">
        <div class="alertMessage">
            {{ ngDialogData.modalBody }}
        </div>
        <div class="alertButtons">
            <a class="button" ng-click="closeThisDialog(true)">{{ ngDialogData.trueOption }}</a>
            <a class="link" ng-click="confirm(false)">{{ ngDialogData.falseOption }}</a>
        </div>
    </div>
</article>