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{"version":3,"file":"question_engine.min.js","sources":["../src/question_engine.js"],"sourcesContent":["// 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 * JavaScript required by the question engine.\n *\n * @module core_question/question_engine\n * @copyright 2021 The Open University\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport * as scrollManager from 'core/scroll_manager';\nimport * as formSubmit from 'core_form/submit';\n\n/**\n * Initialise a question submit button. This saves the scroll position and\n * sets the fragment on the form submit URL so the page reloads in the right place.\n *\n * @param {string} button the id of the button in the HTML.\n */\nexport const initSubmitButton = button => {\n formSubmit.init(button);\n scrollManager.watchScrollButtonSaves();\n};\n\n/**\n * Initialise a form that contains questions printed using print_question.\n * This has the effect of:\n * 1. Turning off browser autocomlete.\n * 2. Stopping enter from submitting the form (or toggling the next flag) unless\n * keyboard focus is on the submit button or the flag.\n * 3. Removes any '.questionflagsavebutton's, since we have JavaScript to toggle\n * the flags using ajax.\n * 4. Scroll to the position indicated by scrollpos= in the URL, if it is there.\n * 5. Prevent the user from repeatedly submitting the form.\n *\n *@param {string} formSelector Selector to identify the form.\n */\nexport const initForm = (formSelector) => {\n const form = document.querySelector(formSelector);\n form.setAttribute('autocomplete', 'off');\n\n form.addEventListener('submit', preventRepeatSubmission);\n\n form.addEventListener('key', (event) => {\n if (event.keyCode !== 13) {\n return;\n }\n\n if (event.target.matches('a')) {\n return;\n }\n\n if (event.target.matches('input[type=\"submit\"]')) {\n return;\n }\n\n if (event.target.matches('input[type=img]')) {\n return;\n }\n\n if (event.target.matches('textarea') || event.target.matches('[contenteditable=true]')) {\n return;\n }\n\n event.preventDefault();\n });\n\n const questionFlagSaveButtons = form.querySelectorAll('.questionflagsavebutton');\n [...questionFlagSaveButtons].forEach((node) => node.remove());\n\n // Note: The scrollToSavedPosition function tries to wait until the content has loaded before firing.\n scrollManager.scrollToSavedPosition();\n};\n\n/**\n * Event handler to stop a question form being submitted more than once.\n *\n * @param {object} event the form submit event.\n */\nexport const preventRepeatSubmission = (event) => {\n const form = event.target.closest('form');\n if (form.dataset.formSubmitted === '1') {\n event.preventDefault();\n return;\n }\n\n setTimeout(() => {\n [...form.querySelectorAll('input[type=submit]')].forEach((input) => input.setAttribute('disabled', true));\n });\n form.dataset.formSubmitted = '1';\n};\n"],"names":["button","formSubmit","init","scrollManager","watchScrollButtonSaves","formSelector","form","document","querySelector","setAttribute","addEventListener","preventRepeatSubmission","event","keyCode","target","matches","preventDefault","querySelectorAll","forEach","node","remove","scrollToSavedPosition","closest","dataset","formSubmitted","setTimeout","input"],"mappings":";;;;;;;+QAgCgCA,SAC5BC,WAAWC,KAAKF,QAChBG,cAAcC,4CAgBOC,qBACfC,KAAOC,SAASC,cAAcH,cACpCC,KAAKG,aAAa,eAAgB,OAElCH,KAAKI,iBAAiB,SAAUC,yBAEhCL,KAAKI,iBAAiB,OAAQE,QACJ,KAAlBA,MAAMC,UAIND,MAAME,OAAOC,QAAQ,MAIrBH,MAAME,OAAOC,QAAQ,yBAIrBH,MAAME,OAAOC,QAAQ,oBAIrBH,MAAME,OAAOC,QAAQ,aAAeH,MAAME,OAAOC,QAAQ,2BAI7DH,MAAMI,yBAGsBV,KAAKW,iBAAiB,4BACzBC,SAASC,MAASA,KAAKC,WAGpDjB,cAAckB,+BAQLV,wBAA2BC,cAC9BN,KAAOM,MAAME,OAAOQ,QAAQ,QACC,MAA/BhB,KAAKiB,QAAQC,eAKjBC,YAAW,SACHnB,KAAKW,iBAAiB,uBAAuBC,SAASQ,OAAUA,MAAMjB,aAAa,YAAY,QAEvGH,KAAKiB,QAAQC,cAAgB,KAPzBZ,MAAMI"}