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/* eslint-disable comma-dangle, class-methods-use-this, no-underscore-dangle, no-param-reassign, no-unused-vars, consistent-return, func-names, space-before-function-paren, max-len */
/* global Flash */
/* global Sortable */
((global) => {
class LabelManager {
constructor({ togglePriorityButton, prioritizedLabels, otherLabels } = {}) {
this.togglePriorityButton = togglePriorityButton || $('.js-toggle-priority');
this.prioritizedLabels = prioritizedLabels || $('.js-prioritized-labels');
this.otherLabels = otherLabels || $('.js-other-labels');
this.errorMessage = 'Unable to update label prioritization at this time';
this.emptyState = document.querySelector('#js-priority-labels-empty-state');
this.sortable = Sortable.create(this.prioritizedLabels.get(0), {
filter: '.empty-message',
forceFallback: true,
fallbackClass: 'is-dragging',
dataIdAttr: 'data-id',
onUpdate: this.onPrioritySortUpdate.bind(this),
});
this.bindEvents();
}
bindEvents() {
return this.togglePriorityButton.on('click', this, this.onTogglePriorityClick);
}
onTogglePriorityClick(e) {
e.preventDefault();
const _this = e.data;
const $btn = $(e.currentTarget);
const $label = $(`#${$btn.data('domId')}`);
const action = $btn.parents('.js-prioritized-labels').length ? 'remove' : 'add';
const $tooltip = $(`#${$btn.find('.has-tooltip:visible').attr('aria-describedby')}`);
$tooltip.tooltip('destroy');
_this.toggleLabelPriority($label, action);
_this.toggleEmptyState($label, $btn, action);
}
toggleEmptyState($label, $btn, action) {
this.emptyState.classList.toggle('hidden', !!this.prioritizedLabels[0].querySelector(':scope > li'));
}
toggleLabelPriority($label, action, persistState) {
if (persistState == null) {
persistState = true;
}
let xhr;
const _this = this;
const url = $label.find('.js-toggle-priority').data('url');
let $target = this.prioritizedLabels;
let $from = this.otherLabels;
if (action === 'remove') {
$target = this.otherLabels;
$from = this.prioritizedLabels;
}
$label.detach().appendTo($target);
if ($from.find('li').length) {
$from.find('.empty-message').removeClass('hidden');
}
if ($target.find('> li:not(.empty-message)').length) {
$target.find('.empty-message').addClass('hidden');
}
// Return if we are not persisting state
if (!persistState) {
return;
}
if (action === 'remove') {
xhr = $.ajax({
url,
type: 'DELETE'
});
// Restore empty message
if (!$from.find('li').length) {
$from.find('.empty-message').removeClass('hidden');
}
} else {
xhr = this.savePrioritySort($label, action);
}
return xhr.fail(this.rollbackLabelPosition.bind(this, $label, action));
}
onPrioritySortUpdate() {
const xhr = this.savePrioritySort();
return xhr.fail(function() {
return new Flash(this.errorMessage, 'alert');
});
}
savePrioritySort() {
return $.post({
url: this.prioritizedLabels.data('url'),
data: {
label_ids: this.getSortedLabelsIds()
}
});
}
rollbackLabelPosition($label, originalAction) {
const action = originalAction === 'remove' ? 'add' : 'remove';
this.toggleLabelPriority($label, action, false);
return new Flash(this.errorMessage, 'alert');
}
getSortedLabelsIds() {
const sortedIds = [];
this.prioritizedLabels.find('> li').each(function() {
const id = $(this).data('id');
if (id) {
sortedIds.push(id);
}
});
return sortedIds;
}
}
gl.LabelManager = LabelManager;
})(window.gl || (window.gl = {}));
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