feat: add support for custom slot header-index, sorted by index (#4039)

* feat: header右侧支持n个自定义位置插槽，插槽命名方式header-index，根据index大小排序。
框架默认插槽user-dropdown的index:20，notification的index:10 (#4034)

* chore: 将默认组件加入排序

* chore: 更改slot命名方式支持header左侧自定义插槽，命名方式：header-right-n，header-left-n，具体位置看README

---------

Co-authored-by: likui628 <90845831+likui628@users.noreply.github.com>

packages/effects/layouts/src/basic/header/header.vue

@@ -1,4 +1,6 @@
 <script lang="ts" setup>
+import { computed, useSlots } from 'vue';
+
 import { preferences, usePreferences } from '@vben/preferences';
 import { useAccessStore } from '@vben/stores';
 import { VbenFullScreen } from '@vben-core/shadcn-ui';
@@ -22,26 +24,100 @@ withDefaults(defineProps<Props>(), {
 
 const accessStore = useAccessStore();
 const { globalSearchShortcutKey } = usePreferences();
+const slots = useSlots();
+const rightSlots = computed(() => {
+  const list = [{ index: 30, name: 'user-dropdown' }];
+  if (preferences.widget.globalSearch) {
+    list.push({
+      index: 5,
+      name: 'global-search',
+    });
+  }
+  if (preferences.widget.themeToggle) {
+    list.push({
+      index: 10,
+      name: 'theme-toggle',
+    });
+  }
+  if (preferences.widget.languageToggle) {
+    list.push({
+      index: 15,
+      name: 'language-toggle',
+    });
+  }
+  if (preferences.widget.fullscreen) {
+    list.push({
+      index: 20,
+      name: 'fullscreen',
+    });
+  }
+  if (preferences.widget.notification) {
+    list.push({
+      index: 25,
+      name: 'notification',
+    });
+  }
+
+  Object.keys(slots).forEach((key) => {
+    const name = key.split('-');
+    if (key.startsWith('header-right')) {
+      list.push({ index: Number(name[2]), name: key });
+    }
+  });
+  return list.sort((a, b) => a.index - b.index);
+});
+const leftSlots = computed(() => {
+  const list: any[] = [];
+
+  Object.keys(slots).forEach((key) => {
+    const name = key.split('-');
+    if (key.startsWith('header-left')) {
+      list.push({ index: Number(name[2]), name: key });
+    }
+  });
+  return list.sort((a, b) => a.index - b.index);
+});
 </script>
 
 <template>
+  <template
+    v-for="slot in leftSlots.filter((item) => item.index < 5)"
+    :key="slot.name"
+  >
+    <slot :name="slot.name"></slot>
+  </template>
   <div class="flex-center hidden lg:block">
     <slot name="breadcrumb"></slot>
   </div>
+  <template
+    v-for="slot in leftSlots.filter((item) => item.index > 5)"
+    :key="slot.name"
+  >
+    <slot :name="slot.name"></slot>
+  </template>
   <div class="flex h-full min-w-0 flex-1 items-center">
     <slot name="menu"></slot>
   </div>
   <div class="flex h-full min-w-0 flex-shrink-0 items-center">
-    <GlobalSearch
-      v-if="preferences.widget.globalSearch"
-      :enable-shortcut-key="globalSearchShortcutKey"
-      :menus="accessStore.accessMenus"
-      class="mr-4"
-    />
-    <ThemeToggle v-if="preferences.widget.themeToggle" class="mr-2" />
-    <LanguageToggle v-if="preferences.widget.languageToggle" class="mr-2" />
-    <VbenFullScreen v-if="preferences.widget.fullscreen" class="mr-2" />
-    <slot v-if="preferences.widget.notification" name="notification"></slot>
-    <slot name="user-dropdown"></slot>
+    <template v-for="slot in rightSlots" :key="slot.name">
+      <slot :name="slot.name">
+        <template v-if="slot.name === 'global-search'">
+          <GlobalSearch
+            :enable-shortcut-key="globalSearchShortcutKey"
+            :menus="accessStore.accessMenus"
+            class="mr-4"
+          />
+        </template>
+        <template v-else-if="slot.name === 'theme-toggle'">
+          <ThemeToggle class="mr-2" />
+        </template>
+        <template v-else-if="slot.name === 'language-toggle'">
+          <LanguageToggle class="mr-2" />
+        </template>
+        <template v-else-if="slot.name === 'fullscreen'">
+          <VbenFullScreen class="mr-2" />
+        </template>
+      </slot>
+    </template>
   </div>
 </template>