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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 * Compare a given form's values and its previously set data attributes.\n *\n * @module core_grades/grades/grader/gradingpanel/comparison\n * @package core_grades\n * @copyright 2019 Mathew May <mathew.solutions>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nexport const fillInitialValues = (form) => {\n Array.prototype.forEach.call(form.elements, (input) => {\n if (input.type === 'submit' || input.type === 'button') {\n return;\n } else if (input.type === 'radio' || input.type === 'checkbox') {\n input.dataset.initialValue = JSON.stringify(input.checked);\n } else if (typeof input.value !== 'undefined') {\n input.dataset.initialValue = JSON.stringify(input.value);\n } else if (input.type === 'select-one') {\n Array.prototype.forEach.call(input.options, (option) => {\n option.dataset.initialValue = JSON.stringify(option.selected);\n });\n }\n });\n};\n\n\n/**\n * Compare the form data with the initial form data from when the form was set up.\n *\n * If values have changed, return a truthy value.\n *\n * @param {HTMLElement} form\n * @return {Boolean}\n */\nexport const compareData = (form) => {\n const result = Array.prototype.some.call(form.elements, (input) => {\n if (input.type === 'submit' || input.type === 'button') {\n return false;\n } else if (input.type === 'radio' || input.type === 'checkbox') {\n if (typeof input.dataset.initialValue !== 'undefined') {\n return input.dataset.initialValue !== JSON.stringify(input.checked);\n }\n } else if (typeof input.value !== 'undefined') {\n if (typeof input.dataset.initialValue !== 'undefined') {\n return input.dataset.initialValue !== JSON.stringify(input.value);\n }\n } else if (input.type === 'select-one') {\n return Array.prototype.some.call(input.options, (option) => {\n if (typeof option.dataset.initialValue !== 'undefined') {\n return option.dataset.initialValue !== JSON.stringify(option.selected);\n }\n\n return false;\n });\n }\n\n // No value found to check. Assume that there were changes.\n return true;\n });\n\n // Fill the initial values again as the form may not be reloaded.\n fillInitialValues(form);\n\n return result;\n};\n"],"file":"comparison.min.js"}