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/*global gettext, interpolate, ngettext*/
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'use strict';
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{
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function show(selector) {
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document.querySelectorAll(selector).forEach(function(el) {
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el.classList.remove('hidden');
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});
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}
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function hide(selector) {
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document.querySelectorAll(selector).forEach(function(el) {
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el.classList.add('hidden');
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});
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}
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function showQuestion(options) {
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hide(options.acrossClears);
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show(options.acrossQuestions);
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hide(options.allContainer);
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}
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function showClear(options) {
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show(options.acrossClears);
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hide(options.acrossQuestions);
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document.querySelector(options.actionContainer).classList.remove(options.selectedClass);
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show(options.allContainer);
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hide(options.counterContainer);
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}
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function reset(options) {
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hide(options.acrossClears);
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hide(options.acrossQuestions);
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hide(options.allContainer);
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show(options.counterContainer);
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}
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function clearAcross(options) {
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reset(options);
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const acrossInputs = document.querySelectorAll(options.acrossInput);
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acrossInputs.forEach(function(acrossInput) {
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acrossInput.value = 0;
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});
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document.querySelector(options.actionContainer).classList.remove(options.selectedClass);
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}
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function checker(actionCheckboxes, options, checked) {
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if (checked) {
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showQuestion(options);
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} else {
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reset(options);
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}
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actionCheckboxes.forEach(function(el) {
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el.checked = checked;
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el.closest('tr').classList.toggle(options.selectedClass, checked);
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});
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}
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function updateCounter(actionCheckboxes, options) {
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const sel = Array.from(actionCheckboxes).filter(function(el) {
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return el.checked;
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}).length;
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const counter = document.querySelector(options.counterContainer);
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// data-actions-icnt is defined in the generated HTML
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// and contains the total amount of objects in the queryset
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const actions_icnt = Number(counter.dataset.actionsIcnt);
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counter.textContent = interpolate(
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ngettext('%(sel)s of %(cnt)s selected', '%(sel)s of %(cnt)s selected', sel), {
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sel: sel,
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cnt: actions_icnt
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}, true);
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const allToggle = document.getElementById(options.allToggleId);
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allToggle.checked = sel === actionCheckboxes.length;
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if (allToggle.checked) {
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showQuestion(options);
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} else {
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clearAcross(options);
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}
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}
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const defaults = {
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actionContainer: "div.actions",
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counterContainer: "span.action-counter",
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allContainer: "div.actions span.all",
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acrossInput: "div.actions input.select-across",
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acrossQuestions: "div.actions span.question",
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acrossClears: "div.actions span.clear",
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allToggleId: "action-toggle",
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selectedClass: "selected"
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};
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window.Actions = function(actionCheckboxes, options) {
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options = Object.assign({}, defaults, options);
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let list_editable_changed = false;
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let lastChecked = null;
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let shiftPressed = false;
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document.addEventListener('keydown', (event) => {
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shiftPressed = event.shiftKey;
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});
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document.addEventListener('keyup', (event) => {
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shiftPressed = event.shiftKey;
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});
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document.getElementById(options.allToggleId).addEventListener('click', function(event) {
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checker(actionCheckboxes, options, this.checked);
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updateCounter(actionCheckboxes, options);
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});
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document.querySelectorAll(options.acrossQuestions + " a").forEach(function(el) {
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el.addEventListener('click', function(event) {
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event.preventDefault();
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const acrossInputs = document.querySelectorAll(options.acrossInput);
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acrossInputs.forEach(function(acrossInput) {
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acrossInput.value = 1;
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});
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showClear(options);
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});
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});
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document.querySelectorAll(options.acrossClears + " a").forEach(function(el) {
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el.addEventListener('click', function(event) {
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event.preventDefault();
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document.getElementById(options.allToggleId).checked = false;
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clearAcross(options);
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checker(actionCheckboxes, options, false);
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updateCounter(actionCheckboxes, options);
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});
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});
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function affectedCheckboxes(target, withModifier) {
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const multiSelect = (lastChecked && withModifier && lastChecked !== target);
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if (!multiSelect) {
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return [target];
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}
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const checkboxes = Array.from(actionCheckboxes);
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const targetIndex = checkboxes.findIndex(el => el === target);
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const lastCheckedIndex = checkboxes.findIndex(el => el === lastChecked);
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const startIndex = Math.min(targetIndex, lastCheckedIndex);
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const endIndex = Math.max(targetIndex, lastCheckedIndex);
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const filtered = checkboxes.filter((el, index) => (startIndex <= index) && (index <= endIndex));
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return filtered;
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};
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Array.from(document.getElementById('result_list').tBodies).forEach(function(el) {
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el.addEventListener('change', function(event) {
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const target = event.target;
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if (target.classList.contains('action-select')) {
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const checkboxes = affectedCheckboxes(target, shiftPressed);
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checker(checkboxes, options, target.checked);
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updateCounter(actionCheckboxes, options);
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lastChecked = target;
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} else {
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list_editable_changed = true;
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}
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});
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});
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document.querySelector('#changelist-form button[name=index]').addEventListener('click', function(event) {
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if (list_editable_changed) {
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const confirmed = confirm(gettext("You have unsaved changes on individual editable fields. If you run an action, your unsaved changes will be lost."));
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if (!confirmed) {
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event.preventDefault();
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}
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}
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});
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const el = document.querySelector('#changelist-form input[name=_save]');
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// The button does not exist if no fields are editable.
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if (el) {
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el.addEventListener('click', function(event) {
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if (document.querySelector('[name=action]').value) {
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const text = list_editable_changed
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? gettext("You have selected an action, but you haven’t saved your changes to individual fields yet. Please click OK to save. You’ll need to re-run the action.")
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: gettext("You have selected an action, and you haven’t made any changes on individual fields. You’re probably looking for the Go button rather than the Save button.");
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if (!confirm(text)) {
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event.preventDefault();
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}
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}
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});
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}
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};
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// Call function fn when the DOM is loaded and ready. If it is already
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// loaded, call the function now.
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// http://youmightnotneedjquery.com/#ready
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function ready(fn) {
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if (document.readyState !== 'loading') {
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fn();
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} else {
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document.addEventListener('DOMContentLoaded', fn);
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}
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}
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ready(function() {
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const actionsEls = document.querySelectorAll('tr input.action-select');
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if (actionsEls.length > 0) {
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Actions(actionsEls);
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}
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});
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}
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