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This file is part of Moodle - http:\/\/moodle.org\/\n\/\/\n\/\/ Moodle is free software: you can redistribute it and\/or modify\n\/\/ it under the terms of the GNU General Public License as published by\n\/\/ the Free Software Foundation, either version 3 of the License, or\n\/\/ (at your option) any later version.\n\/\/\n\/\/ Moodle is distributed in the hope that it will be useful,\n\/\/ but WITHOUT ANY WARRANTY; without even the implied warranty of\n\/\/ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n\/\/ GNU General Public License for more details.\n\/\/\n\/\/ You should have received a copy of the GNU General Public License\n\/\/ along with Moodle.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n\n\/**\n * Contain the logic for modals.\n *\n * @module     core\/modal\n * @class      modal\n * @package    core\n * @copyright  2016 Ryan Wyllie <ryan@moodle.com>\n * @license    http:\/\/www.gnu.org\/copyleft\/gpl.html GNU GPL v3 or later\n *\/\ndefine([\n    'jquery',\n    'core\/templates',\n    'core\/notification',\n    'core\/key_codes',\n    'core\/custom_interaction_events',\n    'core\/modal_backdrop',\n    'core\/event',\n    'core\/modal_events',\n    'core\/local\/aria\/focuslock',\n    'core\/pending',\n], function($, Templates, Notification, KeyCodes, CustomEvents, ModalBackdrop, Event, ModalEvents, FocusLock, Pending) {\n\n    var SELECTORS = {\n        CONTAINER: '[data-region=\"modal-container\"]',\n        MODAL: '[data-region=\"modal\"]',\n        HEADER: '[data-region=\"header\"]',\n        TITLE: '[data-region=\"title\"]',\n        BODY: '[data-region=\"body\"]',\n        FOOTER: '[data-region=\"footer\"]',\n        HIDE: '[data-action=\"hide\"]',\n        DIALOG: '[role=dialog]',\n        FORM: 'form',\n        MENU_BAR: '[role=menubar]',\n        HAS_Z_INDEX: '.moodle-has-zindex',\n        CAN_RECEIVE_FOCUS: 'input:not([type=\"hidden\"]), a[href], button, textarea, select, [tabindex]',\n    };\n\n    var TEMPLATES = {\n        LOADING: 'core\/loading',\n        BACKDROP: 'core\/modal_backdrop',\n    };\n\n    \/**\n     * Module singleton for the backdrop to be reused by all Modal instances.\n     *\/\n    var backdropPromise;\n\n    \/**\n     * A counter that gets incremented for each modal created. This can be\n     * used to generate unique values for the modals.\n     *\/\n    var modalCounter = 0;\n\n    \/**\n     * Constructor for the Modal.\n     *\n     * @param {object} root The root jQuery element for the modal\n     *\/\n    var Modal = function(root) {\n        this.root = $(root);\n        this.modal = this.root.find(SELECTORS.MODAL);\n        this.header = this.modal.find(SELECTORS.HEADER);\n        this.headerPromise = $.Deferred();\n        this.title = this.header.find(SELECTORS.TITLE);\n        this.titlePromise = $.Deferred();\n        this.body = this.modal.find(SELECTORS.BODY);\n        this.bodyPromise = $.Deferred();\n        this.footer = this.modal.find(SELECTORS.FOOTER);\n        this.footerPromise = $.Deferred();\n        this.hiddenSiblings = [];\n        this.isAttached = false;\n        this.bodyJS = null;\n        this.footerJS = null;\n        this.modalCount = modalCounter++;\n\n        if (!this.root.is(SELECTORS.CONTAINER)) {\n            Notification.exception({message: 'Element is not a modal container'});\n        }\n\n        if (!this.modal.length) {\n            Notification.exception({message: 'Container does not contain a modal'});\n        }\n\n        if (!this.header.length) {\n            Notification.exception({message: 'Modal is missing a header region'});\n        }\n\n        if (!this.title.length) {\n            Notification.exception({message: 'Modal header is missing a title region'});\n        }\n\n        if (!this.body.length) {\n            Notification.exception({message: 'Modal is missing a body region'});\n        }\n\n        if (!this.footer.length) {\n            Notification.exception({message: 'Modal is missing a footer region'});\n        }\n\n        this.registerEventListeners();\n    };\n\n    \/**\n     * Add the modal to the page, if it hasn't already been added. This includes running any\n     * javascript that has been cached until now.\n     *\n     * @method attachToDOM\n     *\/\n    Modal.prototype.attachToDOM = function() {\n        if (this.isAttached) {\n            return;\n        }\n\n        $('body').append(this.root);\n        FocusLock.trapFocus(this.root[0]);\n\n        \/\/ If we'd cached any JS then we can run it how that the modal is\n        \/\/ attached to the DOM.\n        if (this.bodyJS) {\n            Templates.runTemplateJS(this.bodyJS);\n            this.bodyJS = null;\n        }\n\n        if (this.footerJS) {\n            Templates.runTemplateJS(this.footerJS);\n            this.footerJS = null;\n        }\n\n        this.isAttached = true;\n    };\n\n    \/**\n     * Count the number of other visible modals (not including this one).\n     *\n     * @method countOtherVisibleModals\n     * @return {int}\n     *\/\n    Modal.prototype.countOtherVisibleModals = function() {\n        var count = 0;\n        $('body').find(SELECTORS.CONTAINER).each(function(index, element) {\n            element = $(element);\n\n            \/\/ If we haven't found ourself and the element is visible.\n            if (!this.root.is(element) && element.hasClass('show')) {\n                count++;\n            }\n        }.bind(this));\n\n        return count;\n    };\n\n    \/**\n     * Get the modal backdrop.\n     *\n     * @method getBackdrop\n     * @return {object} jQuery promise\n     *\/\n    Modal.prototype.getBackdrop = function() {\n        if (!backdropPromise) {\n            backdropPromise = Templates.render(TEMPLATES.BACKDROP, {})\n                .then(function(html) {\n                    var element = $(html);\n\n                    return new ModalBackdrop(element);\n                })\n                .fail(Notification.exception);\n        }\n\n        return backdropPromise;\n    };\n\n    \/**\n     * Get the root element of this modal.\n     *\n     * @method getRoot\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getRoot = function() {\n        return this.root;\n    };\n\n    \/**\n     * Get the modal element of this modal.\n     *\n     * @method getModal\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getModal = function() {\n        return this.modal;\n    };\n\n    \/**\n     * Get the modal title element.\n     *\n     * @method getTitle\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getTitle = function() {\n        return this.title;\n    };\n\n    \/**\n     * Get the modal body element.\n     *\n     * @method getBody\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getBody = function() {\n        return this.body;\n    };\n\n    \/**\n     * Get the modal footer element.\n     *\n     * @method getFooter\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getFooter = function() {\n        return this.footer;\n    };\n\n    \/**\n     * Get a promise resolving to the title region.\n     *\n     * @method getTitlePromise\n     * @return {Promise}\n     *\/\n    Modal.prototype.getTitlePromise = function() {\n        return this.titlePromise;\n    };\n\n    \/**\n     * Get a promise resolving to the body region.\n     *\n     * @method getBodyPromise\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getBodyPromise = function() {\n        return this.bodyPromise;\n    };\n\n    \/**\n     * Get a promise resolving to the footer region.\n     *\n     * @method getFooterPromise\n     * @return {object} jQuery object\n     *\/\n    Modal.prototype.getFooterPromise = function() {\n        return this.footerPromise;\n    };\n\n    \/**\n     * Get the unique modal count.\n     *\n     * @method getModalCount\n     * @return {int}\n     *\/\n    Modal.prototype.getModalCount = function() {\n        return this.modalCount;\n    };\n\n    \/**\n     * Set the modal title element.\n     *\n     * This method is overloaded to take either a string value for the title or a jQuery promise that is resolved with\n     * HTML most commonly from a Str.get_string call.\n     *\n     * @method setTitle\n     * @param {(string|object)} value The title string or jQuery promise which resolves to the title.\n     *\/\n    Modal.prototype.setTitle = function(value) {\n        var title = this.getTitle();\n        this.titlePromise = $.Deferred();\n\n        this.asyncSet(value, title.html.bind(title))\n        .then(function() {\n            this.titlePromise.resolve(title);\n        }.bind(this))\n        .catch(Notification.exception);\n    };\n\n    \/**\n     * Set the modal body element.\n     *\n     * This method is overloaded to take either a string value for the body or a jQuery promise that is resolved with\n     * HTML and Javascript most commonly from a Templates.render call.\n     *\n     * @method setBody\n     * @param {(string|object)} value The body string or jQuery promise which resolves to the body.\n     *\/\n    Modal.prototype.setBody = function(value) {\n        this.bodyPromise = $.Deferred();\n\n        var body = this.getBody();\n\n        if (typeof value === 'string') {\n            \/\/ Just set the value if it's a string.\n            body.html(value);\n            Event.notifyFilterContentUpdated(body);\n            this.getRoot().trigger(ModalEvents.bodyRendered, this);\n            this.bodyPromise.resolve(body);\n        } else {\n            var jsPendingId = 'amd-modal-js-pending-id-' + this.getModalCount();\n            M.util.js_pending(jsPendingId);\n            \/\/ Otherwise we assume it's a promise to be resolved with\n            \/\/ html and javascript.\n            var contentPromise = null;\n            body.css('overflow', 'hidden');\n\n            \/\/ Ensure that the `value` is a jQuery Promise.\n            value = $.when(value);\n\n            if (value.state() == 'pending') {\n                \/\/ We're still waiting for the body promise to resolve so\n                \/\/ let's show a loading icon.\n                var height = body.innerHeight();\n                if (height < 100) {\n                    height = 100;\n                }\n\n                body.animate({height: height + 'px'}, 150);\n\n                body.html('');\n                contentPromise = Templates.render(TEMPLATES.LOADING, {})\n                    .then(function(html) {\n                        var loadingIcon = $(html).hide();\n                        body.html(loadingIcon);\n                        loadingIcon.fadeIn(150);\n\n                        \/\/ We only want the loading icon to fade out\n                        \/\/ when the content for the body has finished\n                        \/\/ loading.\n                        return $.when(loadingIcon.promise(), value);\n                    })\n                    .then(function(loadingIcon) {\n                        \/\/ Once the content has finished loading and\n                        \/\/ the loading icon has been shown then we can\n                        \/\/ fade the icon away to reveal the content.\n                        return loadingIcon.fadeOut(100).promise();\n                    })\n                    .then(function() {\n                        return value;\n                    });\n            } else {\n                \/\/ The content is already loaded so let's just display\n                \/\/ it to the user. No need for a loading icon.\n                contentPromise = value;\n            }\n\n            \/\/ Now we can actually display the content.\n            contentPromise.then(function(html, js) {\n                var result = null;\n\n                if (this.isVisible()) {\n                    \/\/ If the modal is visible then we should display\n                    \/\/ the content gracefully for the user.\n                    body.css('opacity', 0);\n                    var currentHeight = body.innerHeight();\n                    body.html(html);\n                    \/\/ We need to clear any height values we've set here\n                    \/\/ in order to measure the height of the content being\n                    \/\/ added. This then allows us to animate the height\n                    \/\/ transition.\n                    body.css('height', '');\n                    var newHeight = body.innerHeight();\n                    body.css('height', currentHeight + 'px');\n                    result = body.animate(\n                        {height: newHeight + 'px', opacity: 1},\n                        {duration: 150, queue: false}\n                    ).promise();\n                } else {\n                    \/\/ Since the modal isn't visible we can just immediately\n                    \/\/ set the content. No need to animate it.\n                    body.html(html);\n                }\n\n                if (js) {\n                    if (this.isAttached) {\n                        \/\/ If we're in the DOM then run the JS immediately.\n                        Templates.runTemplateJS(js);\n                    } else {\n                        \/\/ Otherwise cache it to be run when we're attached.\n                        this.bodyJS = js;\n                    }\n                }\n\n                return result;\n            }.bind(this))\n            .then(function(result) {\n                Event.notifyFilterContentUpdated(body);\n                this.getRoot().trigger(ModalEvents.bodyRendered, this);\n                return result;\n            }.bind(this))\n            .then(function() {\n                this.bodyPromise.resolve(body);\n                return;\n            }.bind(this))\n            .fail(Notification.exception)\n            .always(function() {\n                \/\/ When we're done displaying all of the content we need\n                \/\/ to clear the custom values we've set here.\n                body.css('height', '');\n                body.css('overflow', '');\n                body.css('opacity', '');\n                M.util.js_complete(jsPendingId);\n\n                return;\n            })\n            .fail(Notification.exception);\n        }\n    };\n\n    \/**\n     * Set the modal footer element. The footer element is made visible, if it\n     * isn't already.\n     *\n     * This method is overloaded to take either a string\n     * value for the body or a jQuery promise that is resolved with HTML and Javascript\n     * most commonly from a Templates.render call.\n     *\n     * @method setFooter\n     * @param {(string|object)} value The footer string or jQuery promise\n     *\/\n    Modal.prototype.setFooter = function(value) {\n        \/\/ Make sure the footer is visible.\n        this.showFooter();\n        this.footerPromise = $.Deferred();\n\n        var footer = this.getFooter();\n\n        if (typeof value === 'string') {\n            \/\/ Just set the value if it's a string.\n            footer.html(value);\n            this.footerPromise.resolve(footer);\n        } else {\n            \/\/ Otherwise we assume it's a promise to be resolved with\n            \/\/ html and javascript.\n            Templates.render(TEMPLATES.LOADING, {})\n            .then(function(html) {\n                footer.html(html);\n\n                return value;\n            })\n            .then(function(html, js) {\n                footer.html(html);\n\n                if (js) {\n                    if (this.isAttached) {\n                        \/\/ If we're in the DOM then run the JS immediately.\n                        Templates.runTemplateJS(js);\n                    } else {\n                        \/\/ Otherwise cache it to be run when we're attached.\n                        this.footerJS = js;\n                    }\n                }\n\n                return footer;\n            }.bind(this))\n            .then(function(footer) {\n                this.footerPromise.resolve(footer);\n                return;\n            }.bind(this))\n            .catch(Notification.exception);\n        }\n    };\n\n    \/**\n     * Check if the footer has any content in it.\n     *\n     * @method hasFooterContent\n     * @return {bool}\n     *\/\n    Modal.prototype.hasFooterContent = function() {\n        return this.getFooter().children().length ? true : false;\n    };\n\n    \/**\n     * Hide the footer element.\n     *\n     * @method hideFooter\n     *\/\n    Modal.prototype.hideFooter = function() {\n        this.getFooter().addClass('hidden');\n    };\n\n    \/**\n     * Show the footer element.\n     *\n     * @method showFooter\n     *\/\n    Modal.prototype.showFooter = function() {\n        this.getFooter().removeClass('hidden');\n    };\n\n    \/**\n     * Mark the modal as a large modal.\n     *\n     * @method setLarge\n     *\/\n    Modal.prototype.setLarge = function() {\n        if (this.isLarge()) {\n            return;\n        }\n\n        this.getModal().addClass('modal-lg');\n    };\n\n    \/**\n     * Check if the modal is a large modal.\n     *\n     * @method isLarge\n     * @return {bool}\n     *\/\n    Modal.prototype.isLarge = function() {\n        return this.getModal().hasClass('modal-lg');\n    };\n\n    \/**\n     * Mark the modal as a small modal.\n     *\n     * @method setSmall\n     *\/\n    Modal.prototype.setSmall = function() {\n        if (this.isSmall()) {\n            return;\n        }\n\n        this.getModal().removeClass('modal-lg');\n    };\n\n    \/**\n     * Check if the modal is a small modal.\n     *\n     * @method isSmall\n     * @return {bool}\n     *\/\n    Modal.prototype.isSmall = function() {\n        return !this.getModal().hasClass('modal-lg');\n    };\n\n    \/**\n     * Determine the highest z-index value currently on the page.\n     *\n     * @method calculateZIndex\n     * @return {int}\n     *\/\n    Modal.prototype.calculateZIndex = function() {\n        var items = $(SELECTORS.DIALOG + ', ' + SELECTORS.MENU_BAR + ', ' + SELECTORS.HAS_Z_INDEX);\n        var zIndex = parseInt(this.root.css('z-index'));\n\n        items.each(function(index, item) {\n            item = $(item);\n            \/\/ Note that webkit browsers won't return the z-index value from the CSS stylesheet\n            \/\/ if the element doesn't have a position specified. Instead it'll return \"auto\".\n            var itemZIndex = item.css('z-index') ? parseInt(item.css('z-index')) : 0;\n\n            if (itemZIndex > zIndex) {\n                zIndex = itemZIndex;\n            }\n        });\n\n        return zIndex;\n    };\n\n    \/**\n     * Check if this modal is visible.\n     *\n     * @method isVisible\n     * @return {bool}\n     *\/\n    Modal.prototype.isVisible = function() {\n        return this.root.hasClass('show');\n    };\n\n    \/**\n     * Check if this modal has focus.\n     *\n     * @method hasFocus\n     * @return {bool}\n     *\/\n    Modal.prototype.hasFocus = function() {\n        var target = $(document.activeElement);\n        return this.root.is(target) || this.root.has(target).length;\n    };\n\n    \/**\n     * Check if this modal has CSS transitions applied.\n     *\n     * @method hasTransitions\n     * @return {bool}\n     *\/\n    Modal.prototype.hasTransitions = function() {\n        return this.getRoot().hasClass('fade');\n    };\n\n    \/**\n     * Display this modal. The modal will be attached to the DOM if it hasn't\n     * already been.\n     *\n     * @method show\n     * @returns {Promise}\n     *\/\n    Modal.prototype.show = function() {\n        if (this.isVisible()) {\n            return $.Deferred().resolve();\n        }\n\n        var pendingPromise = new Pending('core\/modal:show');\n\n        if (this.hasFooterContent()) {\n            this.showFooter();\n        } else {\n            this.hideFooter();\n        }\n\n        if (!this.isAttached) {\n            this.attachToDOM();\n        }\n\n        return this.getBackdrop()\n        .then(function(backdrop) {\n            var currentIndex = this.calculateZIndex();\n            var newIndex = currentIndex + 2;\n            var newBackdropIndex = newIndex - 1;\n            this.root.css('z-index', newIndex);\n            backdrop.setZIndex(newBackdropIndex);\n            backdrop.show();\n\n            this.root.removeClass('hide').addClass('show');\n            this.accessibilityShow();\n            this.getModal().focus();\n            $('body').addClass('modal-open');\n            this.root.trigger(ModalEvents.shown, this);\n\n            return;\n        }.bind(this))\n        .then(pendingPromise.resolve);\n    };\n\n    \/**\n     * Hide this modal if it does not contain a form.\n     *\n     * @method hideIfNotForm\n     *\/\n    Modal.prototype.hideIfNotForm = function() {\n        var formElement = this.modal.find(SELECTORS.FORM);\n        if (formElement.length == 0) {\n            this.hide();\n        }\n    };\n\n    \/**\n     * Hide this modal.\n     *\n     * @method hide\n     *\/\n    Modal.prototype.hide = function() {\n        this.getBackdrop().done(function(backdrop) {\n            FocusLock.untrapFocus();\n            if (!this.countOtherVisibleModals()) {\n                \/\/ Hide the backdrop if we're the last open modal.\n                backdrop.hide();\n                $('body').removeClass('modal-open');\n            }\n\n            var currentIndex = parseInt(this.root.css('z-index'));\n            this.root.css('z-index', '');\n            backdrop.setZIndex(currentIndex - 3);\n\n            this.accessibilityHide();\n\n            if (this.hasTransitions()) {\n                \/\/ Wait for CSS transitions to complete before hiding the element.\n                this.getRoot().one('transitionend webkitTransitionEnd oTransitionEnd', function() {\n                    this.getRoot().removeClass('show').addClass('hide');\n                }.bind(this));\n            } else {\n                this.getRoot().removeClass('show').addClass('hide');\n            }\n\n            this.root.trigger(ModalEvents.hidden, this);\n        }.bind(this));\n    };\n\n    \/**\n     * Remove this modal from the DOM.\n     *\n     * @method destroy\n     *\/\n    Modal.prototype.destroy = function() {\n        this.hide();\n        this.root.remove();\n        this.root.trigger(ModalEvents.destroyed, this);\n    };\n\n    \/**\n     * Sets the appropriate aria attributes on this dialogue and the other\n     * elements in the DOM to ensure that screen readers are able to navigate\n     * the dialogue popup correctly.\n     *\n     * @method accessibilityShow\n     *\/\n    Modal.prototype.accessibilityShow = function() {\n        \/\/ We need to get a list containing each sibling element and the shallowest\n        \/\/ non-ancestral nodes in the DOM. We can shortcut this a little by leveraging\n        \/\/ the fact that this dialogue is always appended to the document body therefore\n        \/\/ it's siblings are the shallowest non-ancestral nodes. If that changes then\n        \/\/ this code should also be updated.\n        $('body').children().each(function(index, child) {\n            \/\/ Skip the current modal.\n            if (!this.root.is(child)) {\n                child = $(child);\n                var hidden = child.attr('aria-hidden');\n                \/\/ If they are already hidden we can ignore them.\n                if (hidden !== 'true') {\n                    \/\/ Save their current state.\n                    child.data('previous-aria-hidden', hidden);\n                    this.hiddenSiblings.push(child);\n\n                    \/\/ Hide this node from screen readers.\n                    child.attr('aria-hidden', 'true');\n                }\n            }\n        }.bind(this));\n\n        \/\/ Make us visible to screen readers.\n        this.root.attr('aria-hidden', 'false');\n    };\n\n    \/**\n     * Restores the aria visibility on the DOM elements changed when displaying\n     * the dialogue popup and makes the dialogue aria hidden to allow screen\n     * readers to navigate the main page correctly when the dialogue is closed.\n     *\n     * @method accessibilityHide\n     *\/\n    Modal.prototype.accessibilityHide = function() {\n        this.root.attr('aria-hidden', 'true');\n\n        \/\/ Restore the sibling nodes back to their original values.\n        $.each(this.hiddenSiblings, function(index, sibling) {\n            sibling = $(sibling);\n            var previousValue = sibling.data('previous-aria-hidden');\n            \/\/ If the element didn't previously have an aria-hidden attribute\n            \/\/ then we can just remove the one we set.\n            if (typeof previousValue == 'undefined') {\n                sibling.removeAttr('aria-hidden');\n            } else {\n                \/\/ Otherwise set it back to the old value (which will be false).\n                sibling.attr('aria-hidden', previousValue);\n            }\n        });\n\n        \/\/ Clear the cache. No longer need to store these.\n        this.hiddenSiblings = [];\n    };\n\n    \/**\n     * Set up all of the event handling for the modal.\n     *\n     * @method registerEventListeners\n     *\/\n    Modal.prototype.registerEventListeners = function() {\n        this.getRoot().on('keydown', function(e) {\n            if (!this.isVisible()) {\n                return;\n            }\n\n            if (e.keyCode == KeyCodes.escape) {\n                this.hide();\n            }\n        }.bind(this));\n\n        \/\/ Listen for clicks on the modal container.\n        this.getRoot().click(function(e) {\n            \/\/ If the click wasn't inside the modal element then we should\n            \/\/ hide the modal.\n            if (!$(e.target).closest(SELECTORS.MODAL).length) {\n                \/\/ The check above fails to detect the click was inside the modal when the DOM tree is already changed.\n                \/\/ So, we check if we can still find the container element or not. If not, then the DOM tree is changed.\n                \/\/ It's best not to hide the modal in that case.\n                if ($(e.target).closest(SELECTORS.CONTAINER).length) {\n                    this.hideIfNotForm();\n                }\n            }\n        }.bind(this));\n\n        CustomEvents.define(this.getModal(), [CustomEvents.events.activate]);\n        this.getModal().on(CustomEvents.events.activate, SELECTORS.HIDE, function(e, data) {\n            this.hide();\n            data.originalEvent.preventDefault();\n        }.bind(this));\n    };\n\n    \/**\n     * Register a listener to close the dialogue when the cancel button is pressed.\n     *\n     * @method registerCloseOnCancel\n     *\/\n    Modal.prototype.registerCloseOnCancel = function() {\n        \/\/ Handle the clicking of the Cancel button.\n        this.getModal().on(CustomEvents.events.activate, this.getActionSelector('cancel'), function(e, data) {\n            var cancelEvent = $.Event(ModalEvents.cancel);\n            this.getRoot().trigger(cancelEvent, this);\n\n            if (!cancelEvent.isDefaultPrevented()) {\n                data.originalEvent.preventDefault();\n\n                if (this.removeOnClose) {\n                    this.destroy();\n                } else {\n                    this.hide();\n                }\n            }\n        }.bind(this));\n    };\n\n    \/**\n     * Register a listener to close the dialogue when the save button is pressed.\n     *\n     * @method registerCloseOnSave\n     *\/\n    Modal.prototype.registerCloseOnSave = function() {\n        \/\/ Handle the clicking of the Cancel button.\n        this.getModal().on(CustomEvents.events.activate, this.getActionSelector('save'), function(e, data) {\n            var saveEvent = $.Event(ModalEvents.save);\n            this.getRoot().trigger(saveEvent, this);\n\n            if (!saveEvent.isDefaultPrevented()) {\n                data.originalEvent.preventDefault();\n\n                if (this.removeOnClose) {\n                    this.destroy();\n                } else {\n                    this.hide();\n                }\n            }\n        }.bind(this));\n    };\n\n    \/**\n     * Set or resolve and set the value using the function.\n     *\n     * @method asyncSet\n     * @param {(string|object)} value The string or jQuery promise.\n     * @param {function} setFunction The setter\n     * @return {Promise}\n     *\/\n    Modal.prototype.asyncSet = function(value, setFunction) {\n        var p = value;\n        if (typeof value !== 'object' || !value.hasOwnProperty('then')) {\n            p = $.Deferred();\n            p.resolve(value);\n        }\n\n        p.then(function(content) {\n            setFunction(content);\n\n            return;\n        })\n        .fail(Notification.exception);\n\n        return p;\n    };\n\n    \/**\n     * Set the title text of a button.\n     *\n     * This method is overloaded to take either a string value for the button title or a jQuery promise that is resolved with\n     * text most commonly from a Str.get_string call.\n     *\n     * @param {DOMString} action The action of the button\n     * @param {(String|object)} value The button text, or a promise which will resolve to it\n     * @returns {Promise}\n     *\/\n    Modal.prototype.setButtonText = function(action, value) {\n        const button = this.getFooter().find(this.getActionSelector(action));\n\n        if (!button) {\n            throw new Error(\"Unable to find the '\" + action + \"' button\");\n        }\n\n        return this.asyncSet(value, button.text.bind(button));\n    };\n\n    \/**\n     * Get the Selector for an action.\n     *\n     * @param {String} action\n     * @returns {DOMString}\n     *\/\n    Modal.prototype.getActionSelector = function(action) {\n        return \"[data-action='\" + action + \"']\";\n    };\n\n    \/**\n     * Set the flag to remove the modal from the DOM on close.\n     *\n     * @param {Boolean} remove\n     *\/\n    Modal.prototype.setRemoveOnClose = function(remove) {\n        this.removeOnClose = remove;\n    };\n\n    return Modal;\n});\n"],"file":"modal.min.js"}