进行了一些小修复

assets/js/admin-pay-meta-box.js

@@ -0,0 +1,136 @@
+(function () {
+  'use strict';
+
+  var root = document.querySelector('[data-aksrt-pay-meta]');
+  if (!root) return;
+
+  function selected(name) {
+    var input = root.querySelector('input[name="aksrt_pay[' + name + ']"]:checked');
+    return input ? input.value : '';
+  }
+
+  function syncDependencies() {
+    var type = selected('pay_type');
+    var modo = selected('pay_modo');
+    var enabled = type !== 'no';
+    var enabledBox = root.querySelector('[data-pay-enabled]');
+    if (enabledBox) enabledBox.hidden = !enabled;
+
+    root.querySelectorAll('[data-pay-type]').forEach(function (field) {
+      field.hidden = field.getAttribute('data-pay-type') !== type;
+    });
+    root.querySelectorAll('[data-pay-modo]').forEach(function (field) {
+      field.hidden = field.getAttribute('data-pay-modo') !== modo;
+    });
+
+    var expired = root.querySelector('[data-order-expired]');
+    var expiredFields = root.querySelector('[data-order-expired-fields]');
+    if (expiredFields) expiredFields.hidden = !expired || !expired.checked;
+  }
+
+  function openMedia(button) {
+    if (!window.wp || !wp.media) return;
+    var wrap = button.closest('.aksrt-pay-meta__upload');
+    var input = wrap && wrap.querySelector('[data-media-input]');
+    if (!input) return;
+    var library = button.getAttribute('data-library') || '';
+    var options = { title: library === 'video' ? '选择视频' : '选择文件', multiple: false };
+    if (library) options.library = { type: library };
+    var frame = wp.media(options);
+    frame.on('select', function () {
+      var item = frame.state().get('selection').first().toJSON();
+      input.value = item.url || '';
+      input.dispatchEvent(new Event('change', { bubbles: true }));
+    });
+    frame.open();
+  }
+
+  function renderGallery() {
+    if (!window.wp || !wp.media) return;
+    var input = root.querySelector('[data-gallery-input]');
+    var preview = root.querySelector('[data-gallery-preview]');
+    if (!input || !preview) return;
+    preview.innerHTML = '';
+    input.value.split(',').map(function (id) { return parseInt(id, 10); }).filter(Boolean).forEach(function (id) {
+      wp.media.attachment(id).fetch().then(function () {
+        var data = wp.media.attachment(id).toJSON();
+        var image = document.createElement('img');
+        image.src = (data.sizes && data.sizes.thumbnail ? data.sizes.thumbnail.url : data.url) || '';
+        image.alt = data.alt || '';
+        preview.appendChild(image);
+      });
+    });
+  }
+
+  function openGallery() {
+    if (!window.wp || !wp.media) return;
+    var input = root.querySelector('[data-gallery-input]');
+    if (!input) return;
+    var frame = wp.media({ title: '新增图片', library: { type: 'image' }, multiple: true });
+    frame.on('open', function () {
+      input.value.split(',').map(function (id) { return parseInt(id, 10); }).filter(Boolean).forEach(function (id) {
+        frame.state().get('selection').add(wp.media.attachment(id));
+      });
+    });
+    frame.on('select', function () {
+      input.value = frame.state().get('selection').map(function (item) { return item.id; }).join(',');
+      renderGallery();
+    });
+    frame.open();
+  }
+
+  function addGroup(button) {
+    var id = button.getAttribute('data-group-add');
+    var list = root.querySelector('[data-group-list="' + id + '"]');
+    var template = root.querySelector('[data-group-template="' + id + '"]');
+    if (!list || !template) return;
+    var index = list.querySelectorAll('[data-group-row]').length;
+    list.insertAdjacentHTML('beforeend', template.innerHTML.replaceAll('__INDEX__', String(index)));
+  }
+
+  root.addEventListener('click', function (event) {
+    var target = event.target;
+    var media = target.closest('[data-media-select]');
+    if (media) {
+      event.preventDefault();
+      openMedia(media);
+      return;
+    }
+    var clear = target.closest('[data-media-clear]');
+    if (clear) {
+      event.preventDefault();
+      var wrap = clear.closest('.aksrt-pay-meta__upload');
+      var input = wrap && wrap.querySelector('[data-media-input]');
+      if (input) input.value = '';
+      return;
+    }
+    if (target.closest('[data-gallery-select]')) {
+      event.preventDefault();
+      openGallery();
+      return;
+    }
+    if (target.closest('[data-gallery-clear]')) {
+      event.preventDefault();
+      var gallery = root.querySelector('[data-gallery-input]');
+      if (gallery) gallery.value = '';
+      renderGallery();
+      return;
+    }
+    var add = target.closest('[data-group-add]');
+    if (add) {
+      event.preventDefault();
+      addGroup(add);
+      return;
+    }
+    var remove = target.closest('[data-group-remove]');
+    if (remove) {
+      event.preventDefault();
+      var row = remove.closest('[data-group-row]');
+      if (row) row.remove();
+    }
+  });
+
+  root.addEventListener('change', syncDependencies);
+  renderGallery();
+  syncDependencies();
+})();