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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 drawer.\n *\n * @module core/drawer\n * @copyright 2019 Jun Pataleta <jun@moodle.com>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\nimport $ from 'jquery';\nimport * as PubSub from 'core/pubsub';\nimport * as Aria from 'core/aria';\nimport DrawerEvents from 'core/drawer_events';\n\n/**\n * Show the drawer.\n *\n * @param {Object} root The drawer container.\n */\nconst show = root => {\n // Ensure that it is a jQuery.\n root = $(root);\n\n Aria.unhide(root.get());\n root.removeClass('hidden');\n root.attr('aria-expanded', true);\n root.focus();\n\n PubSub.publish(DrawerEvents.DRAWER_SHOWN, root);\n};\n\n/**\n * Hide the drawer.\n *\n * @param {Object} root The drawer container.\n */\nconst hide = root => {\n // Ensure that it is a jQuery.\n root = $(root);\n\n root.addClass('hidden');\n root.attr('aria-expanded', false);\n Aria.hide(root.get());\n\n PubSub.publish(DrawerEvents.DRAWER_HIDDEN, root);\n};\n\n/**\n * Check if the drawer is visible.\n *\n * @param {Object} root The drawer container.\n * @return {boolean}\n */\nconst isVisible = (root) => {\n let isHidden = root.hasClass('hidden');\n return !isHidden;\n};\n\n/**\n * Toggle the drawer visibility.\n *\n * @param {Object} root The drawer container.\n */\nconst toggle = (root) => {\n if (isVisible(root)) {\n hide(root);\n } else {\n show(root);\n }\n};\n\n/**\n * Add event listeners to toggle the drawer.\n *\n * @param {Object} root The drawer container.\n * @param {Object} toggleElements The toggle elements.\n */\nconst registerToggles = (root, toggleElements) => {\n let openTrigger = null;\n toggleElements.attr('aria-expanded', isVisible(root));\n\n toggleElements.on('click', (e) => {\n e.preventDefault();\n const wasVisible = isVisible(root);\n toggle(root);\n toggleElements.attr('aria-expanded', !wasVisible);\n\n if (!wasVisible) {\n // Remember which trigger element opened the drawer.\n openTrigger = toggleElements.filter((index, element) => {\n return element == e.target || element.contains(e.target);\n });\n } else if (openTrigger) {\n // The drawer has gone from open to close so we need to set the focus back\n // to the element that openend it.\n openTrigger.focus();\n openTrigger = null;\n }\n });\n};\n\n/**\n * Find the root element of the drawer based on the using the drawer content root's ID.\n *\n * @param {Object} contentRoot The drawer content's root element.\n * @returns {*|jQuery}\n */\nconst getDrawerRoot = (contentRoot) => {\n contentRoot = $(contentRoot);\n return contentRoot.closest('[data-region=\"right-hand-drawer\"]');\n};\n\nexport default {\n hide: hide,\n show: show,\n isVisible: isVisible,\n toggle: toggle,\n registerToggles: registerToggles,\n getDrawerRoot: getDrawerRoot\n};\n"],"file":"drawer.min.js"}