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{"version":3,"sources":["../src/popover_region_controller.js"],"names":["define","$","str","customEvents","SELECTORS","CONTENT","CONTENT_CONTAINER","MENU_CONTAINER","MENU_TOGGLE","CAN_RECEIVE_FOCUS","PopoverRegionController","element","root","content","find","contentContainer","menuContainer","menuToggle","isLoading","promises","closeHandlers","Deferred","navigationHandlers","registerBaseEventListeners","prototype","events","menuOpened","menuClosed","startLoading","stopLoading","getContentContainer","getContent","isMenuOpen","hasClass","toggleMenu","closeMenu","openMenu","addClass","attr","updateButtonAriaLabel","trigger","removeClass","resolve","get_string","done","string","bind","focusMenuToggle","focus","contentItemHasFocus","getContentItemWithFocus","length","currentFocus","document","activeElement","items","children","currentItem","filter","has","focusContentItem","item","is","first","focusFirstContentItem","focusLastContentItem","last","focusNextContentItem","next","focusPreviousContentItem","prev","activate","escape","on","click","e","target","scrollBottom","registerListNavigationEventListeners","down","data","originalEvent","preventDefault","up","home","end"],"mappings":"AA2BAA,OAAM,kCAAC,CAAC,QAAD,CAAW,UAAX,CAAuB,gCAAvB,CAAD,CACE,SAASC,CAAT,CAAYC,CAAZ,CAAiBC,CAAjB,CAA+B,IAE/BC,CAAAA,CAAS,CAAG,CACZC,OAAO,CAAE,yBADG,CAEZC,iBAAiB,CAAE,mCAFP,CAGZC,cAAc,CAAE,2BAHJ,CAIZC,WAAW,CAAE,wBAJD,CAKZC,iBAAiB,CAAE,6EALP,CAFmB,CAe/BC,CAAuB,CAAG,SAASC,CAAT,CAAkB,CAC5C,KAAKC,IAAL,CAAYX,CAAC,CAACU,CAAD,CAAb,CACA,KAAKE,OAAL,CAAe,KAAKD,IAAL,CAAUE,IAAV,CAAeV,CAAS,CAACC,OAAzB,CAAf,CACA,KAAKU,gBAAL,CAAwB,KAAKH,IAAL,CAAUE,IAAV,CAAeV,CAAS,CAACE,iBAAzB,CAAxB,CACA,KAAKU,aAAL,CAAqB,KAAKJ,IAAL,CAAUE,IAAV,CAAeV,CAAS,CAACG,cAAzB,CAArB,CACA,KAAKU,UAAL,CAAkB,KAAKL,IAAL,CAAUE,IAAV,CAAeV,CAAS,CAACI,WAAzB,CAAlB,CACA,KAAKU,SAAL,IACA,KAAKC,QAAL,CAAgB,CACZC,aAAa,CAAEnB,CAAC,CAACoB,QAAF,EADH,CAEZC,kBAAkB,CAAErB,CAAC,CAACoB,QAAF,EAFR,CAAhB,CAMA,KAAKE,0BAAL,EACH,CA7BkC,CAoCnCb,CAAuB,CAACc,SAAxB,CAAkCC,MAAlC,CAA2C,UAAW,CAClD,MAAO,CACHC,UAAU,CAAE,0BADT,CAEHC,UAAU,CAAE,0BAFT,CAGHC,YAAY,CAAE,4BAHX,CAIHC,WAAW,CAAE,2BAJV,CAMV,CAPD,CAeAnB,CAAuB,CAACc,SAAxB,CAAkCM,mBAAlC,CAAwD,UAAW,CAC/D,MAAO,MAAKf,gBACf,CAFD,CAUAL,CAAuB,CAACc,SAAxB,CAAkCO,UAAlC,CAA+C,UAAW,CACtD,MAAO,MAAKlB,OACf,CAFD,CAUAH,CAAuB,CAACc,SAAxB,CAAkCQ,UAAlC,CAA+C,UAAW,CACtD,MAAO,CAAC,KAAKpB,IAAL,CAAUqB,QAAV,CAAmB,WAAnB,CACX,CAFD,CASAvB,CAAuB,CAACc,SAAxB,CAAkCU,UAAlC,CAA+C,UAAW,CACtD,GAAI,KAAKF,UAAL,EAAJ,CAAuB,CACnB,KAAKG,SAAL,EACH,CAFD,IAEO,CACH,KAAKC,QAAL,EACH,CACJ,CAND,CAeA1B,CAAuB,CAACc,SAAxB,CAAkCW,SAAlC,CAA8C,UAAW,CAErD,GAAI,CAAC,KAAKH,UAAL,EAAL,CAAwB,CACpB,MACH,CAED,KAAKpB,IAAL,CAAUyB,QAAV,CAAmB,WAAnB,EACA,KAAKrB,aAAL,CAAmBsB,IAAnB,CAAwB,eAAxB,CAAyC,OAAzC,EACA,KAAKtB,aAAL,CAAmBsB,IAAnB,CAAwB,aAAxB,CAAuC,MAAvC,EACA,KAAKC,qBAAL,GACA,KAAK3B,IAAL,CAAU4B,OAAV,CAAkB,KAAKf,MAAL,GAAcE,UAAhC,CACH,CAXD,CAoBAjB,CAAuB,CAACc,SAAxB,CAAkCY,QAAlC,CAA6C,UAAW,CAEpD,GAAI,KAAKJ,UAAL,EAAJ,CAAuB,CACnB,MACH,CAED,KAAKpB,IAAL,CAAU6B,WAAV,CAAsB,WAAtB,EACA,KAAKzB,aAAL,CAAmBsB,IAAnB,CAAwB,eAAxB,CAAyC,MAAzC,EACA,KAAKtB,aAAL,CAAmBsB,IAAnB,CAAwB,aAAxB,CAAuC,OAAvC,EACA,KAAKC,qBAAL,GAGA,KAAKpB,QAAL,CAAcC,aAAd,CAA4BsB,OAA5B,GACA,KAAKvB,QAAL,CAAcG,kBAAd,CAAiCoB,OAAjC,GACA,KAAK9B,IAAL,CAAU4B,OAAV,CAAkB,KAAKf,MAAL,GAAcC,UAAhC,CACH,CAfD,CAsBAhB,CAAuB,CAACc,SAAxB,CAAkCe,qBAAlC,CAA0D,UAAW,CACjE,GAAI,KAAKP,UAAL,EAAJ,CAAuB,CACnB9B,CAAG,CAACyC,UAAJ,CAAe,mBAAf,EAAoCC,IAApC,CAAyC,SAASC,CAAT,CAAiB,CACtD,KAAK5B,UAAL,CAAgBqB,IAAhB,CAAqB,YAArB,CAAmCO,CAAnC,CACH,CAFwC,CAEvCC,IAFuC,CAElC,IAFkC,CAAzC,CAGH,CAJD,IAIO,CACH5C,CAAG,CAACyC,UAAJ,CAAe,mBAAf,EAAoCC,IAApC,CAAyC,SAASC,CAAT,CAAiB,CACtD,KAAK5B,UAAL,CAAgBqB,IAAhB,CAAqB,YAArB,CAAmCO,CAAnC,CACH,CAFwC,CAEvCC,IAFuC,CAElC,IAFkC,CAAzC,CAGH,CACJ,CAVD,CAmBApC,CAAuB,CAACc,SAAxB,CAAkCI,YAAlC,CAAiD,UAAW,CACxD,KAAKV,SAAL,IACA,KAAKY,mBAAL,GAA2BO,QAA3B,CAAoC,SAApC,EACA,KAAKP,mBAAL,GAA2BQ,IAA3B,CAAgC,WAAhC,CAA6C,MAA7C,EACA,KAAK1B,IAAL,CAAU4B,OAAV,CAAkB,KAAKf,MAAL,GAAcG,YAAhC,CACH,CALD,CAcAlB,CAAuB,CAACc,SAAxB,CAAkCK,WAAlC,CAAgD,UAAW,CACvD,KAAKX,SAAL,IACA,KAAKY,mBAAL,GAA2BW,WAA3B,CAAuC,SAAvC,EACA,KAAKX,mBAAL,GAA2BQ,IAA3B,CAAgC,WAAhC,CAA6C,OAA7C,EACA,KAAK1B,IAAL,CAAU4B,OAAV,CAAkB,KAAKf,MAAL,GAAcI,WAAhC,CACH,CALD,CAYAnB,CAAuB,CAACc,SAAxB,CAAkCuB,eAAlC,CAAoD,UAAW,CAC3D,KAAK9B,UAAL,CAAgB+B,KAAhB,EACH,CAFD,CAUAtC,CAAuB,CAACc,SAAxB,CAAkCyB,mBAAlC,CAAwD,UAAW,CAC/D,MAA+C,EAAxC,MAAKC,uBAAL,GAA+BC,MACzC,CAFD,CAUAzC,CAAuB,CAACc,SAAxB,CAAkC0B,uBAAlC,CAA4D,UAAW,IAC/DE,CAAAA,CAAY,CAAGnD,CAAC,CAACoD,QAAQ,CAACC,aAAV,CAD+C,CAE/DC,CAAK,CAAG,KAAKxB,UAAL,GAAkByB,QAAlB,EAFuD,CAG/DC,CAAW,CAAGF,CAAK,CAACG,MAAN,CAAaN,CAAb,CAHiD,CAKnE,GAAI,CAACK,CAAW,CAACN,MAAjB,CAAyB,CACrBM,CAAW,CAAGF,CAAK,CAACI,GAAN,CAAUP,CAAV,CACjB,CAED,MAAOK,CAAAA,CACV,CAVD,CAmBA/C,CAAuB,CAACc,SAAxB,CAAkCoC,gBAAlC,CAAqD,SAASC,CAAT,CAAe,CAChE,GAAIA,CAAI,CAACC,EAAL,CAAQ1D,CAAS,CAACK,iBAAlB,CAAJ,CAA0C,CACtCoD,CAAI,CAACb,KAAL,EACH,CAFD,IAEO,CACHa,CAAI,CAAC/C,IAAL,CAAUV,CAAS,CAACK,iBAApB,EAAuCsD,KAAvC,GAA+Cf,KAA/C,EACH,CACJ,CAND,CAaAtC,CAAuB,CAACc,SAAxB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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 * Controls the popover region element.\n *\n * See template: core/popover_region\n *\n * @module core/popover_region_controller\n * @class popover_region_controller\n * @package core\n * @copyright 2015 Ryan Wyllie <ryan@moodle.com>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since 3.2\n */\ndefine(['jquery', 'core/str', 'core/custom_interaction_events'],\n function($, str, customEvents) {\n\n var SELECTORS = {\n CONTENT: '.popover-region-content',\n CONTENT_CONTAINER: '.popover-region-content-container',\n MENU_CONTAINER: '.popover-region-container',\n MENU_TOGGLE: '.popover-region-toggle',\n CAN_RECEIVE_FOCUS: 'input:not([type=\"hidden\"]), a[href], button, textarea, select, [tabindex]',\n };\n\n /**\n * Constructor for the PopoverRegionController.\n *\n * @param {jQuery} element object root element of the popover\n */\n var PopoverRegionController = function(element) {\n this.root = $(element);\n this.content = this.root.find(SELECTORS.CONTENT);\n this.contentContainer = this.root.find(SELECTORS.CONTENT_CONTAINER);\n this.menuContainer = this.root.find(SELECTORS.MENU_CONTAINER);\n this.menuToggle = this.root.find(SELECTORS.MENU_TOGGLE);\n this.isLoading = false;\n this.promises = {\n closeHandlers: $.Deferred(),\n navigationHandlers: $.Deferred(),\n };\n\n // Core event listeners to open and close.\n this.registerBaseEventListeners();\n };\n\n /**\n * The collection of events triggered by this controller.\n *\n * @returns {object}\n */\n PopoverRegionController.prototype.events = function() {\n return {\n menuOpened: 'popoverregion:menuopened',\n menuClosed: 'popoverregion:menuclosed',\n startLoading: 'popoverregion:startLoading',\n stopLoading: 'popoverregion:stopLoading',\n };\n };\n\n /**\n * Return the container element for the content element.\n *\n * @method getContentContainer\n * @return {jQuery} object\n */\n PopoverRegionController.prototype.getContentContainer = function() {\n return this.contentContainer;\n };\n\n /**\n * Return the content element.\n *\n * @method getContent\n * @return {jQuery} object\n */\n PopoverRegionController.prototype.getContent = function() {\n return this.content;\n };\n\n /**\n * Checks if the popover is displayed.\n *\n * @method isMenuOpen\n * @return {bool}\n */\n PopoverRegionController.prototype.isMenuOpen = function() {\n return !this.root.hasClass('collapsed');\n };\n\n /**\n * Toggle the visibility of the popover.\n *\n * @method toggleMenu\n */\n PopoverRegionController.prototype.toggleMenu = function() {\n if (this.isMenuOpen()) {\n this.closeMenu();\n } else {\n this.openMenu();\n }\n };\n\n /**\n * Hide the popover.\n *\n * Note: This triggers the menuClosed event.\n *\n * @method closeMenu\n */\n PopoverRegionController.prototype.closeMenu = function() {\n // We're already closed.\n if (!this.isMenuOpen()) {\n return;\n }\n\n this.root.addClass('collapsed');\n this.menuContainer.attr('aria-expanded', 'false');\n this.menuContainer.attr('aria-hidden', 'true');\n this.updateButtonAriaLabel();\n this.root.trigger(this.events().menuClosed);\n };\n\n /**\n * Show the popover.\n *\n * Note: This triggers the menuOpened event.\n *\n * @method openMenu\n */\n PopoverRegionController.prototype.openMenu = function() {\n // We're already open.\n if (this.isMenuOpen()) {\n return;\n }\n\n this.root.removeClass('collapsed');\n this.menuContainer.attr('aria-expanded', 'true');\n this.menuContainer.attr('aria-hidden', 'false');\n this.updateButtonAriaLabel();\n // Resolve the promises to allow the handlers to be added\n // to the DOM, if they have been requested.\n this.promises.closeHandlers.resolve();\n this.promises.navigationHandlers.resolve();\n this.root.trigger(this.events().menuOpened);\n };\n\n /**\n * Set the appropriate aria label on the popover toggle.\n *\n * @method updateButtonAriaLabel\n */\n PopoverRegionController.prototype.updateButtonAriaLabel = function() {\n if (this.isMenuOpen()) {\n str.get_string('hidepopoverwindow').done(function(string) {\n this.menuToggle.attr('aria-label', string);\n }.bind(this));\n } else {\n str.get_string('showpopoverwindow').done(function(string) {\n this.menuToggle.attr('aria-label', string);\n }.bind(this));\n }\n };\n\n /**\n * Set the loading state on this popover.\n *\n * Note: This triggers the startLoading event.\n *\n * @method startLoading\n */\n PopoverRegionController.prototype.startLoading = function() {\n this.isLoading = true;\n this.getContentContainer().addClass('loading');\n this.getContentContainer().attr('aria-busy', 'true');\n this.root.trigger(this.events().startLoading);\n };\n\n /**\n * Undo the loading state on this popover.\n *\n * Note: This triggers the stopLoading event.\n *\n * @method stopLoading\n */\n PopoverRegionController.prototype.stopLoading = function() {\n this.isLoading = false;\n this.getContentContainer().removeClass('loading');\n this.getContentContainer().attr('aria-busy', 'false');\n this.root.trigger(this.events().stopLoading);\n };\n\n /**\n * Sets the focus on the menu toggle.\n *\n * @method focusMenuToggle\n */\n PopoverRegionController.prototype.focusMenuToggle = function() {\n this.menuToggle.focus();\n };\n\n /**\n * Check if a content item has focus.\n *\n * @method contentItemHasFocus\n * @return {bool}\n */\n PopoverRegionController.prototype.contentItemHasFocus = function() {\n return this.getContentItemWithFocus().length > 0;\n };\n\n /**\n * Return the currently focused content item.\n *\n * @method getContentItemWithFocus\n * @return {jQuery} object\n */\n PopoverRegionController.prototype.getContentItemWithFocus = function() {\n var currentFocus = $(document.activeElement);\n var items = this.getContent().children();\n var currentItem = items.filter(currentFocus);\n\n if (!currentItem.length) {\n currentItem = items.has(currentFocus);\n }\n\n return currentItem;\n };\n\n /**\n * Focus the given content item or the first focusable element within\n * the content item.\n *\n * @method focusContentItem\n * @param {object} item The content item jQuery element\n */\n PopoverRegionController.prototype.focusContentItem = function(item) {\n if (item.is(SELECTORS.CAN_RECEIVE_FOCUS)) {\n item.focus();\n } else {\n item.find(SELECTORS.CAN_RECEIVE_FOCUS).first().focus();\n }\n };\n\n /**\n * Set focus on the first content item in the list.\n *\n * @method focusFirstContentItem\n */\n PopoverRegionController.prototype.focusFirstContentItem = function() {\n this.focusContentItem(this.getContent().children().first());\n };\n\n /**\n * Set focus on the last content item in the list.\n *\n * @method focusLastContentItem\n */\n PopoverRegionController.prototype.focusLastContentItem = function() {\n this.focusContentItem(this.getContent().children().last());\n };\n\n /**\n * Set focus on the content item after the item that currently has focus\n * in the list.\n *\n * @method focusNextContentItem\n */\n PopoverRegionController.prototype.focusNextContentItem = function() {\n var currentItem = this.getContentItemWithFocus();\n\n if (currentItem.length && currentItem.next()) {\n this.focusContentItem(currentItem.next());\n }\n };\n\n /**\n * Set focus on the content item preceding the item that currently has focus\n * in the list.\n *\n * @method focusPreviousContentItem\n */\n PopoverRegionController.prototype.focusPreviousContentItem = function() {\n var currentItem = this.getContentItemWithFocus();\n\n if (currentItem.length && currentItem.prev()) {\n this.focusContentItem(currentItem.prev());\n }\n };\n\n /**\n * Register the minimal amount of listeners for the popover to function.\n *\n * @method registerBaseEventListeners\n */\n PopoverRegionController.prototype.registerBaseEventListeners = function() {\n customEvents.define(this.root, [\n customEvents.events.activate,\n customEvents.events.escape,\n ]);\n\n // Toggle the popover visibility on activation (click/enter/space) of the toggle button.\n this.root.on(customEvents.events.activate, SELECTORS.MENU_TOGGLE, function() {\n this.toggleMenu();\n }.bind(this));\n\n // Delay the binding of these handlers until the region has been opened.\n this.promises.closeHandlers.done(function() {\n // Close the popover if escape is pressed.\n this.root.on(customEvents.events.escape, function() {\n this.closeMenu();\n this.focusMenuToggle();\n }.bind(this));\n\n // Close the popover if any other part of the page is clicked.\n $('html').click(function(e) {\n var target = $(e.target);\n if (!this.root.is(target) && !this.root.has(target).length) {\n this.closeMenu();\n }\n }.bind(this));\n\n customEvents.define(this.getContentContainer(), [\n customEvents.events.scrollBottom\n ]);\n }.bind(this));\n };\n\n /**\n * Set up the event listeners for keyboard navigating a list of content items.\n *\n * @method registerListNavigationEventListeners\n */\n PopoverRegionController.prototype.registerListNavigationEventListeners = function() {\n customEvents.define(this.root, [\n customEvents.events.down\n ]);\n\n // If the down arrow is pressed then open the menu and focus the first content\n // item or focus the next content item if the menu is open.\n this.root.on(customEvents.events.down, function(e, data) {\n if (!this.isMenuOpen()) {\n this.openMenu();\n this.focusFirstContentItem();\n } else {\n if (this.contentItemHasFocus()) {\n this.focusNextContentItem();\n } else {\n this.focusFirstContentItem();\n }\n }\n\n data.originalEvent.preventDefault();\n }.bind(this));\n\n // Delay the binding of these handlers until the region has been opened.\n this.promises.navigationHandlers.done(function() {\n customEvents.define(this.root, [\n customEvents.events.up,\n customEvents.events.home,\n customEvents.events.end,\n ]);\n\n // Shift focus to the previous content item if the up key is pressed.\n this.root.on(customEvents.events.up, function(e, data) {\n this.focusPreviousContentItem();\n data.originalEvent.preventDefault();\n }.bind(this));\n\n // Jump focus to the first content item if the home key is pressed.\n this.root.on(customEvents.events.home, function(e, data) {\n this.focusFirstContentItem();\n data.originalEvent.preventDefault();\n }.bind(this));\n\n // Jump focus to the last content item if the end key is pressed.\n this.root.on(customEvents.events.end, function(e, data) {\n this.focusLastContentItem();\n data.originalEvent.preventDefault();\n }.bind(this));\n }.bind(this));\n };\n\n return PopoverRegionController;\n});\n"],"file":"popover_region_controller.min.js"}