431 lines
17 KiB
JavaScript
431 lines
17 KiB
JavaScript
/** 工单后台：按需加载弹窗，写操作只使用工单 REST 接口。 */
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(function () {
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'use strict';
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var root = document.querySelector('.aksrt-tickets-admin');
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var config = window.AKSRTAdminTickets;
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var createDialog = document.getElementById('aksrt-ticket-create-dialog');
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var detailDialog = document.getElementById('aksrt-ticket-detail-dialog');
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if (!root || !config || !createDialog || !detailDialog || typeof detailDialog.showModal !== 'function') return;
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var strings = config.strings;
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var panel = detailDialog.querySelector('[data-aksrt-ticket-panel]');
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var list = root.querySelector('[data-aksrt-ticket-list]');
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var detailTitle = document.getElementById('aksrt-ticket-detail-title');
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var initialTitle = detailTitle.textContent;
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var baselines = new WeakMap();
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var active = null;
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var opener = null;
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var ticketId = 0;
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var saving = false;
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var loading = false;
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var stale = false;
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var retryPage = false;
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var savedMessage = '';
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var savedDrafts = {};
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var disabledControls = [];
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var readController = null;
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var generation = 0;
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var pointerOutside = false;
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var feedbackTimer = 0;
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function values(form) {
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var result = {};
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form.querySelectorAll('input[name], select[name], textarea[name]').forEach(function (field) {
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result[field.name] = field.value;
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});
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return result;
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}
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function drafts(except) {
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var result = {};
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if (!active) return result;
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active.querySelectorAll('[data-aksrt-ticket-form]').forEach(function (form) {
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if (form === except) return;
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var base = baselines.get(form) || {};
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var changed = {};
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var current = values(form);
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Object.keys(current).forEach(function (key) {
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if (current[key] !== base[key]) changed[key] = current[key];
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});
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if (Object.keys(changed).length) result[form.dataset.aksrtTicketForm] = changed;
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});
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return result;
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}
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function dirty() {
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return Object.keys(drafts()).length > 0 || Object.keys(savedDrafts).length > 0;
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}
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function counter(field) {
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var output = root.querySelector('[data-aksrt-ticket-counter="' + field.id + '"]');
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if (!output) return;
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output.textContent = field.value.length + ' / ' + field.maxLength;
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output.classList.toggle('is-over', field.value.length >= field.maxLength);
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}
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function validateText(field) {
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if (field.required && (field.tagName === 'TEXTAREA' || field.type === 'text')) {
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field.setCustomValidity(field.value.trim() ? '' : strings.required);
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}
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}
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function syncStatus(form) {
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var select = form.querySelector('[data-aksrt-ticket-status]');
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if (!select) return;
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var option = select.options[select.selectedIndex];
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var closed = !!option && option.dataset.closed === '1';
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var warning = form.querySelector('[data-aksrt-ticket-close-warning]');
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var confirm = form.querySelector('[data-aksrt-ticket-close-confirm]');
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warning.hidden = !closed;
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confirm.required = closed;
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if (!closed) confirm.checked = false;
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}
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function setupForms(container, restore) {
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container.querySelectorAll('[data-aksrt-ticket-form]').forEach(function (form) {
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baselines.set(form, values(form));
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var changes = (restore || {})[form.dataset.aksrtTicketForm] || {};
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form.querySelectorAll('[name]').forEach(function (field) {
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if (Object.prototype.hasOwnProperty.call(changes, field.name)) field.value = changes[field.name];
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validateText(field);
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});
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syncStatus(form);
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});
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container.querySelectorAll('[data-aksrt-ticket-editor]').forEach(counter);
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}
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/** 成功与可忽略的错误提示自动消失；加载/保存中与需重试的提示保留到状态变化。 */
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function feedback(dialog, message, error, retry) {
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var box = dialog.querySelector('[data-aksrt-ticket-feedback]');
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clearTimeout(feedbackTimer);
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box.hidden = !message;
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box.classList.toggle('is-error', !!error);
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box.querySelector('p').textContent = message || '';
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box.querySelector('[data-aksrt-ticket-retry]').hidden = !retry;
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if (!message || retry || message === strings.loading || message === strings.saving) return;
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feedbackTimer = setTimeout(function () { box.hidden = true; }, error ? 6000 : 3000);
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}
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function busy(value) {
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saving = value;
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if (!active) return;
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active.setAttribute('aria-busy', String(value));
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if (value) {
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disabledControls = [];
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active.querySelectorAll('input, select, textarea, button').forEach(function (control) {
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disabledControls.push([control, control.disabled]);
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control.disabled = true;
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});
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} else {
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disabledControls.forEach(function (entry) { entry[0].disabled = entry[1]; });
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disabledControls = [];
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}
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}
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function lockStaleForms() {
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if (!stale || !active) return;
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active.querySelectorAll('form input, form select, form textarea, form button[type="submit"]').forEach(function (control) {
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control.disabled = true;
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});
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active.querySelectorAll('[data-aksrt-ticket-assign]').forEach(function (button) { button.disabled = true; });
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}
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/** 会话已在底部或无需滚动时隐藏「查看最新记录」，避免点击无反应。 */
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function syncLatest() {
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var conversation = panel.querySelector('.aksrt-ticket-conversation__scroll');
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var button = panel.querySelector('[data-aksrt-ticket-latest]');
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if (!conversation || !button) return;
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button.hidden = conversation.scrollHeight - conversation.clientHeight - conversation.scrollTop <= 8;
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}
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/** 会话内滚到底部；手动触发时同时让弹窗正文露出会话底部。 */
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function showLatest(manual) {
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var conversation = panel.querySelector('.aksrt-ticket-conversation__scroll');
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if (!conversation) return;
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conversation.scrollTop = conversation.scrollHeight;
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if (manual) {
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var gap = conversation.getBoundingClientRect().bottom - panel.getBoundingClientRect().bottom;
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if (gap > 0) panel.scrollTop += gap;
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conversation.focus({ preventScroll: true });
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}
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syncLatest();
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}
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function updateUrl(id, page) {
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var url = new URL(window.location.href);
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if (id) url.searchParams.set('id', String(id));
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else url.searchParams.delete('id');
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if (page) {
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if (page > 1) url.searchParams.set('paged', String(page));
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else url.searchParams.delete('paged');
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}
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url.hash = '';
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window.history.replaceState(window.history.state, '', url.toString());
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}
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async function request(url, options) {
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var response = await fetch(url, Object.assign({ credentials: 'same-origin' }, options));
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var result = await response.json();
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if (!response.ok || !result || result.success !== true) {
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var error = new Error(result && (result.message || (result.data && result.data.message)) || strings.saveFailed);
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error.confirmed = !!result && (result.success === false || typeof result.code === 'string');
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error.status = response.status;
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throw error;
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}
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return result.data;
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}
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function readUrl(id, refresh) {
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var url = new URL(config.ajaxUrl, window.location.href);
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var current = new URL(window.location.href);
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['status', 'ticket_type_id', 's', 'paged'].forEach(function (key) {
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if (current.searchParams.has(key)) url.searchParams.set(key, current.searchParams.get(key));
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});
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url.searchParams.set('action', 'aksrt_ticket_view');
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url.searchParams.set('nonce', config.readNonce);
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url.searchParams.set('id', String(id));
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if (refresh) url.searchParams.set('refresh_list', '1');
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return url.toString();
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}
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async function loadDetail(id, refresh, message, restore) {
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if (readController) readController.abort();
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var current = ++generation;
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var controller = new AbortController();
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readController = controller;
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var timer = setTimeout(function () { controller.abort(); }, 30000);
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loading = true;
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panel.setAttribute('aria-busy', 'true');
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feedback(detailDialog, strings.loading, false, false);
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try {
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var data = await request(readUrl(id, refresh), { signal: controller.signal, cache: 'no-store' });
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if (current !== generation || active !== detailDialog) return;
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panel.innerHTML = data.panel;
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detailTitle.textContent = data.title;
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if (typeof data.list === 'string') list.innerHTML = data.list;
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updateUrl(id, data.page);
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setupForms(panel, restore);
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showLatest(false);
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var notes = panel.querySelector('.aksrt-ticket-detail__notes');
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if (notes) notes.scrollTop = notes.scrollHeight;
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stale = false;
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savedDrafts = {};
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savedMessage = '';
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feedback(detailDialog, message, false, false);
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if (message) detailTitle.focus();
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} catch (error) {
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if (current !== generation || active !== detailDialog) return;
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stale = true;
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retryPage = [401, 403, 404].indexOf(error.status) !== -1;
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if (error.status === 404) updateUrl(0);
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savedDrafts = restore || {};
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savedMessage = message || '';
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feedback(detailDialog, message ? strings.refreshFailed : (error.confirmed ? error.message : strings.loadFailed), true, true);
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} finally {
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clearTimeout(timer);
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if (current === generation) {
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loading = false;
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panel.removeAttribute('aria-busy');
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readController = null;
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lockStaleForms();
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}
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}
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}
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function show(dialog, source) {
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active = dialog;
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opener = source || null;
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pointerOutside = false;
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stale = false;
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retryPage = false;
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feedback(dialog, '', false, false);
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dialog.showModal();
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document.documentElement.classList.add('aksrt-ticket-modal-open');
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}
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function openDetail(id, source, refresh, message) {
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ticketId = id;
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detailTitle.textContent = initialTitle;
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show(detailDialog, source);
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updateUrl(id);
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return loadDetail(id, !!refresh, message || '', {});
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}
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function close() {
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if (!active || saving) return;
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if (dirty() && !window.confirm(strings.discard)) return;
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active.close();
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}
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root.addEventListener('click', function (event) {
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var create = event.target.closest('[data-aksrt-dialog-open="aksrt-ticket-create-dialog"]');
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var view = event.target.closest('[data-aksrt-ticket-view]');
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if (create || view) {
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event.preventDefault();
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if (active) return;
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if (create) show(createDialog, create);
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else openDetail(parseInt(view.dataset.aksrtTicketView, 10), view);
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return;
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}
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if (!active || saving) return;
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var retry = event.target.closest('[data-aksrt-ticket-retry]');
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if (retry) {
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if (retryPage) { window.location.reload(); return; }
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if (!loading) loadDetail(ticketId, true, savedMessage, Object.assign({}, savedDrafts, drafts()));
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return;
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}
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if (stale || loading) return;
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var assign = event.target.closest('[data-aksrt-ticket-assign]');
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if (assign) {
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var statusForm = assign.closest('section').querySelector('form');
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statusForm.querySelector('[name="admin_id"]').value = String(config.currentUser);
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var statusSelect = statusForm.querySelector('[name="status"]');
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if (statusSelect.value === 'pending') statusSelect.value = 'handling';
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syncStatus(statusForm);
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statusForm.querySelector('[type="submit"]').focus();
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}
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if (event.target.closest('[data-aksrt-ticket-latest]')) showLatest(true);
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});
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root.addEventListener('input', function (event) {
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validateText(event.target);
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if (event.target.matches('[data-aksrt-ticket-editor]')) counter(event.target);
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});
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root.addEventListener('change', function (event) {
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var select = event.target;
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if (select.matches('[data-aksrt-ticket-status]')) {
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select.form.querySelector('[data-aksrt-ticket-close-confirm]').checked = false;
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syncStatus(select.form);
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}
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if (!select.matches('[data-aksrt-ticket-prereply]') || !select.value) return;
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var field = document.getElementById(select.dataset.aksrtTicketPrereply);
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if (!field) return;
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var start = field.selectionStart || 0;
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var end = field.selectionEnd || 0;
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var before = field.value.slice(0, start);
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var insert = (before && !/\n$/.test(before) ? '\n' : '') + select.value;
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var next = before + insert + field.value.slice(end);
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if (next.length > field.maxLength) {
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feedback(active, strings.tooLong, true, false);
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} else {
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field.value = next;
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field.focus();
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field.setSelectionRange(start + insert.length, start + insert.length);
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validateText(field);
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counter(field);
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}
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select.value = '';
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});
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root.addEventListener('submit', async function (event) {
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var form = event.target.closest('[data-aksrt-ticket-form]');
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if (!form) return;
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event.preventDefault();
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if (saving || loading || stale || !active) return;
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form.querySelectorAll('input, textarea').forEach(validateText);
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if (!form.reportValidity()) return;
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var kind = form.dataset.aksrtTicketForm;
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var body = JSON.stringify(values(form));
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var remaining = drafts(form);
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var controller = new AbortController();
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var timer = setTimeout(function () { controller.abort(); }, 30000);
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busy(true);
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feedback(active, strings.saving, false, false);
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try {
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var data = await request(form.action, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json', 'X-WP-Nonce': config.restNonce },
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body: body,
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signal: controller.signal,
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});
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clearTimeout(timer);
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baselines.set(form, values(form));
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if (kind === 'create') {
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var source = opener;
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busy(false);
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await new Promise(function (resolve) {
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createDialog.addEventListener('close', resolve, { once: true });
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createDialog.close();
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});
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await openDetail(data.id, source, true, strings.created);
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} else {
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if (kind !== 'status') form.reset();
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baselines.set(form, values(form));
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await loadDetail(ticketId, true, strings[kind], remaining);
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}
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} catch (error) {
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var reload = !error.confirmed || [401, 403, 404].indexOf(error.status) !== -1;
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stale = reload || error.status === 409;
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retryPage = reload || (kind === 'create' && stale);
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if (error.status === 404) updateUrl(0);
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feedback(active, error.confirmed ? error.message : strings.uncertain, true, stale);
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} finally {
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clearTimeout(timer);
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busy(false);
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lockStaleForms();
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}
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});
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[createDialog, detailDialog].forEach(function (dialog) {
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function outside(event) {
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var rect = dialog.getBoundingClientRect();
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return event.clientX < rect.left || event.clientX > rect.right || event.clientY < rect.top || event.clientY > rect.bottom;
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}
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dialog.addEventListener('pointerdown', function (event) { pointerOutside = event.target === dialog && outside(event); });
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dialog.addEventListener('pointercancel', function () { pointerOutside = false; });
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dialog.addEventListener('click', function (event) {
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if (event.target.closest('[data-aksrt-dialog-close]') || (pointerOutside && event.target === dialog && outside(event))) {
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event.preventDefault();
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close();
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}
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pointerOutside = false;
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});
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dialog.addEventListener('cancel', function (event) { event.preventDefault(); close(); });
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dialog.addEventListener('close', function () {
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var previous = opener;
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var previousId = ticketId;
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if (readController) readController.abort();
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generation += 1;
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readController = null;
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loading = false;
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stale = false;
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savedDrafts = {};
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savedMessage = '';
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if (dialog === detailDialog) {
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panel.replaceChildren();
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updateUrl(0);
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} else {
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var form = dialog.querySelector('form');
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if (form) form.reset();
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setupForms(dialog);
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}
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active = null;
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opener = null;
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ticketId = 0;
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document.documentElement.classList.remove('aksrt-ticket-modal-open');
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if (!previous || !previous.isConnected) previous = root.querySelector('[data-aksrt-ticket-view="' + previousId + '"]') || root.querySelector('[data-aksrt-dialog-open]');
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if (previous) previous.focus();
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});
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});
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// scroll 不冒泡，用捕获监听会话容器。
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panel.addEventListener('scroll', syncLatest, true);
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// 把正文可视高度写给 CSS，用于限制右侧栏高度。
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if (typeof ResizeObserver === 'function') {
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new ResizeObserver(function () {
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panel.style.setProperty('--aksrt-ticket-panel-height', panel.clientHeight + 'px');
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}).observe(panel);
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}
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window.addEventListener('beforeunload', function (event) {
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if (!saving && !dirty()) return;
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event.preventDefault();
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event.returnValue = '';
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});
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setupForms(createDialog);
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var initialId = parseInt(new URL(window.location.href).searchParams.get('id'), 10);
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if (initialId > 0) openDetail(initialId, root.querySelector('[data-aksrt-ticket-view="' + initialId + '"]'));
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})();
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