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✏️ Editing: changechecker.min.js

define("core_form/changechecker",["exports","core_editor/events","core/str"],(function(_exports,_events,_str){Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.watchFormById=_exports.watchForm=_exports.unWatchForm=_exports.startWatching=_exports.resetFormDirtyStateById=_exports.resetFormDirtyState=_exports.resetAllFormDirtyStates=_exports.markFormSubmitted=_exports.markFormChangedFromNode=_exports.markFormAsDirtyById=_exports.markFormAsDirty=_exports.markAllFormsSubmitted=_exports.markAllFormsAsDirty=_exports.isAnyWatchedFormDirty=_exports.disableAllChecks=void 0;
/**
   * This module provides change detection to forms, allowing a browser to warn the user before navigating away if changes
   * have been made.
   *
   * Two flags are stored for each form:
   * * a 'dirty' flag; and
   * * a 'submitted' flag.
   *
   * When the page is unloaded each watched form is checked. If the 'dirty' flag is set for any form, and the 'submitted'
   * flag is not set for any form, then a warning is shown.
   *
   * The 'dirty' flag is set when any form element is modified within a watched form.
   * The flag can also be set programatically. This may be required for custom form elements.
   *
   * It is not possible to customise the warning message in any modern browser.
   *
   * Please note that some browsers have controls on when these alerts may or may not be shown.
   * See {@link https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onbeforeunload} for browser-specific
   * notes and references.
   *
   * @module     core_form/changechecker
   * @copyright  2021 Andrew Lyons <andrew@nicols.co.uk>
   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
   * @example <caption>Usage where the FormElement is already held</caption>
   *
   * import {watchForm} from 'core_form/changechecker';
   *
   * // Fetch the form element somehow.
   * watchForm(formElement);
   *
   * @example <caption>Usage from the child of a form - i.e. an input, button, div, etc.</caption>
   *
   * import {watchForm} from 'core_form/changechecker';
   *
   * // Watch the form by using a child of it.
   * watchForm(document.querySelector('input[data-foo="bar"]'););
   *
   * @example <caption>Usage from within a template</caption>
   * <form id="mod_example-entry-{{uniqid}}" ...>
   *   
   * </form>
   * {{#js}}
   * require(['core_form/changechecker'], function(changeChecker) {
   *     watchFormById('mod_example-entry-{{uniqid}}');
   * });
   * {{/js}}
   */
let warningString,watchedForms=[],formChangeCheckerDisabled=!1;const getFormFromChild=formChild=>formChild.closest("form"),watchForm=formNode=>{(formNode=getFormFromChild(formNode))&&(isWatchingForm(formNode)||watchedForms.push(formNode))};_exports.watchForm=watchForm;_exports.unWatchForm=formNode=>{watchedForms=watchedForms.filter((watchedForm=>!!watchedForm.contains(formNode)))};const resetAllFormDirtyStates=()=>{watchedForms.forEach((watchedForm=>{watchedForm.dataset.formSubmitted="false",watchedForm.dataset.formDirty="false"}))};_exports.resetAllFormDirtyStates=resetAllFormDirtyStates;const resetFormDirtyState=formNode=>{(formNode=getFormFromChild(formNode))&&(formNode.dataset.formSubmitted="false",formNode.dataset.formDirty="false")};_exports.resetFormDirtyState=resetFormDirtyState;_exports.markAllFormsAsDirty=()=>{watchedForms.forEach((watchedForm=>{watchedForm.dataset.formDirty="true"}))};const markFormAsDirty=formNode=>{(formNode=getFormFromChild(formNode))&&(formNode.dataset.formDirty="true")};_exports.markFormAsDirty=markFormAsDirty;const disableAllChecks=()=>{formChangeCheckerDisabled=!0};_exports.disableAllChecks=disableAllChecks;const isAnyWatchedFormDirty=()=>{if(formChangeCheckerDisabled)return!1;if(watchedForms.some((watchedForm=>"true"===watchedForm.dataset.formSubmitted)))return!1;return!!watchedForms.some((watchedForm=>{if(!watchedForm.isConnected)return!1;if("true"===watchedForm.dataset.formDirty)return!0;if(document.activeElement&&document.activeElement.dataset.propertyIsEnumerable("initialValue")){const isActiveElementWatched=isWatchingForm(document.activeElement)&&!shouldIgnoreChangesForNode(document.activeElement),hasValueChanged=document.activeElement.dataset.initialValue!==document.activeElement.value;if(isActiveElementWatched&&hasValueChanged)return!0}return!1}))||!(void 0===window.tinyMCE||!window.tinyMCE.editors||!window.tinyMCE.editors.some((editor=>editor.isDirty())))};_exports.isAnyWatchedFormDirty=isAnyWatchedFormDirty;const isWatchingForm=target=>watchedForms.some((watchedForm=>watchedForm.contains(target))),shouldIgnoreChangesForNode=target=>!!target.closest(".ignoredirty"),markFormChangedFromNode=changedNode=>{if(changedNode.dataset.formChangeCheckerOverride)return void disableAllChecks();if(!isWatchingForm(changedNode))return;if(shouldIgnoreChangesForNode(changedNode))return;var target;(target=changedNode,watchedForms.find((watchedForm=>watchedForm.contains(target)))).dataset.formDirty="true"};_exports.markFormChangedFromNode=markFormChangedFromNode;const markFormSubmitted=formNode=>{(formNode=getFormFromChild(formNode))&&(formNode.dataset.formSubmitted="true")};_exports.markFormSubmitted=markFormSubmitted;_exports.markAllFormsSubmitted=()=>{watchedForms.forEach((watchedForm=>markFormSubmitted(watchedForm)))};const beforeUnloadHandler=e=>isAnyWatchedFormDirty()&&!M.cfg.behatsiterunning?(e.preventDefault(),e.returnValue=warningString,e.returnValue):(window.removeEventListener("beforeunload",beforeUnloadHandler),null),startWatching=()=>{document.addEventListener("change",(e=>{isWatchingForm(e.target)&&markFormChangedFromNode(e.target)})),document.addEventListener("click",(e=>{if(!e.target.closest("[data-formchangechecker-ignore-submit]"))return;const ownerForm=getFormFromChild(e.target);ownerForm&&(ownerForm.dataset.ignoreSubmission="true")})),document.addEventListener("focusin",(e=>{if(e.target.matches("input, textarea, select")){if(e.target.dataset.propertyIsEnumerable("initialValue"))return;e.target.dataset.initialValue=e.target.value}})),document.addEventListener("submit",(e=>{const formNode=getFormFromChild(e.target);formNode&&(formNode.dataset.ignoreSubmission?formNode.dataset.ignoreSubmission="false":markFormSubmitted(formNode))})),document.addEventListener(_events.eventTypes.editorContentRestored,(e=>{e.target!=document?resetFormDirtyState(e.target):resetAllFormDirtyStates()})),(0,_str.getString)("changesmadereallygoaway","moodle").then((changesMadeString=>{warningString=changesMadeString})).catch(),window.addEventListener("beforeunload",beforeUnloadHandler)};_exports.startWatching=startWatching;_exports.watchFormById=formId=>{watchForm(document.getElementById(formId))};_exports.resetFormDirtyStateById=formId=>{resetFormDirtyState(document.getElementById(formId))};_exports.markFormAsDirtyById=formId=>{markFormAsDirty(document.getElementById(formId))},startWatching()}));

//# sourceMappingURL=changechecker.min.js.map

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