feat: 优化“已订阅主题列表”，自动对数据进行按主题名称升序排序

app/src/renderer/src/App.vue

@@ -9,6 +9,7 @@ import Dashboard from './views/Dashboard.vue';
 import Subscribe from './views/Subscribe.vue';
 import Publish from './views/Publish.vue';
 import Messages from './views/Messages.vue';
+import QuickSend from './views/QuickSend.vue';
 
 // 全局状态
 const store = useMqttStore();
@@ -148,6 +149,14 @@ function handleSwitchTab(tab) {
                   </div>
                 </div>
               </n-tab-pane>
+              <n-tab-pane
+                name="quick-send"
+                tab="快速发送"
+              >
+                <div class="tab-content">
+                  <QuickSend />
+                </div>
+              </n-tab-pane>
             </n-tabs>
           </n-layout>
 

app/src/renderer/src/stores/mqtt.js

@@ -108,6 +108,17 @@ const loading = ref(false);
  */
 let cleanupFns = [];
 
+/**
+ * 对指定服务器的主题列表按主题名称升序排序
+ * @param {MqttServer} server - 服务器对象
+ * @returns {void}
+ */
+function sortTopics(server) {
+  if (server && server.topics) {
+    server.topics.sort((a, b) => a.topic.localeCompare(b.topic));
+  }
+}
+
 /**
  * 设置主进程事件监听器
  * 包括状态变化、消息接收、订阅变化等事件
@@ -172,6 +183,7 @@ function setupListeners() {
             t.subscribed = data.subscribed;
             if (data.topic && data.topic !== t.topic) {
               t.topic = data.topic;
+              sortTopics(srv);
             }
           }
 
@@ -252,6 +264,7 @@ export function useMqttStore() {
 
       servers.value = data;
       sortServers();
+      servers.value.forEach((srv) => sortTopics(srv));
       setupListeners();
 
     } catch (e) {
@@ -355,6 +368,7 @@ export function useMqttStore() {
     let data = await window.api.importServers(serverList);
     servers.value = data;
     sortServers();
+    servers.value.forEach((srv) => sortTopics(srv));
     if (servers.value.length > 0 && !activeServerId.value) {
       activeServerId.value = servers.value[0].id;
     }
@@ -396,6 +410,7 @@ export function useMqttStore() {
       let srv = servers.value.find((s) => s.id === serverId);
       if (srv) {
         srv.topics.push(result);
+        sortTopics(srv);
       }
     }
 
@@ -417,6 +432,7 @@ export function useMqttStore() {
 
     if (srv) {
       srv.topics = srv.topics.filter((t) => t.topic !== topic);
+      sortTopics(srv);
     }
 
   }

app/src/renderer/src/views/QuickSend.vue

@@ -0,0 +1,839 @@
+<script setup>
+import { ref, computed, watch, onMounted, onUnmounted } from 'vue';
+import { useMqttStore } from '../stores/mqtt.js';
+import { NCard, NSpace, NFormItem, NInput, NSelect, NSwitch, NButton, NEmpty, NModal, NForm, NGrid, NGridItem, NCheckbox, useMessage, useDialog } from 'naive-ui';
+
+// 全局状态与消息 API
+const store = useMqttStore();
+const msg = useMessage();
+const dialog = useDialog();
+
+// localStorage 持久化 key
+const storageKey = 'mqtt-client.quick-send-list';
+
+/**
+ * @typedef {Object} QuickSendItem
+ * @property {string} id
+ * @property {string} topic
+ * @property {string} payload
+ * @property {0|1|2} qos
+ * @property {boolean} retain
+ */
+
+// 快速发送列表
+/** @type {import('vue').Ref<QuickSendItem[]>} */
+const quickList = ref([]);
+
+// 表单弹窗显隐
+const showModal = ref(false);
+const isEdit = ref(false);
+
+// 表单数据
+const formId = ref('');
+const formTopic = ref('');
+const formPayload = ref('');
+const formQos = ref(1);
+const formRetain = ref(false);
+
+// 从 localStorage 恢复列表
+try {
+
+  let saved = JSON.parse(localStorage.getItem(storageKey) || '[]');
+
+  if (Array.isArray(saved)) {
+    quickList.value = saved.filter((item) => {
+      return item && typeof item.id === 'string' && typeof item.topic === 'string';
+    });
+  }
+
+} catch {
+  localStorage.removeItem(storageKey);
+}
+
+// 列表变化时持久化
+watch(
+  quickList,
+  () => {
+    localStorage.setItem(storageKey, JSON.stringify(quickList.value));
+  },
+  { deep: true }
+);
+
+// QoS 下拉选项
+const qosOptions = [
+  { label: 'QoS 0 - 最多一次', value: 0 },
+  { label: 'QoS 1 - 至少一次', value: 1 },
+  { label: 'QoS 2 - 恰好一次', value: 2 },
+];
+
+// 当前是否有选中的服务器
+const hasActiveServer = computed(() => Boolean(store.activeServer.value));
+
+// 拖拽排序状态
+/** @type {import('vue').Ref<number>} */
+const dragIndex = ref(-1);
+/** @type {import('vue').Ref<QuickSendItem | null>} */
+const dragItem = ref(null);
+
+// 列表容器引用与响应式布局
+/** @type {import('vue').Ref<HTMLElement | null>} */
+const containerRef = ref(null);
+const columnCount = ref(1);
+/** @type {ResizeObserver | null} */
+let resizeObserver = null;
+
+// 批量操作状态
+/** @type {import('vue').Ref<string[]>} */
+const selectedIds = ref([]);
+/** @type {import('vue').Ref<HTMLInputElement | null>} */
+const fileInput = ref(null);
+
+// 是否已全选
+const isAllSelected = computed(() => {
+  return quickList.value.length > 0 && selectedIds.value.length === quickList.value.length;
+});
+
+// 是否有选中项
+const hasSelected = computed(() => selectedIds.value.length > 0);
+
+/**
+ * 生成唯一 id
+ * @returns {string}
+ */
+function generateId() {
+  return Date.now().toString(36) + Math.random().toString(36).slice(2, 8);
+}
+
+/**
+ * 打开新增弹窗
+ */
+function handleAdd() {
+  isEdit.value = false;
+  formId.value = '';
+  formTopic.value = '';
+  formPayload.value = '';
+  formQos.value = 1;
+  formRetain.value = false;
+  showModal.value = true;
+}
+
+/**
+ * 打开编辑弹窗
+ * @param {QuickSendItem} item
+ */
+function handleEdit(item) {
+  isEdit.value = true;
+  formId.value = item.id;
+  formTopic.value = item.topic;
+  formPayload.value = item.payload;
+  formQos.value = item.qos;
+  formRetain.value = item.retain;
+  showModal.value = true;
+}
+
+/**
+ * 保存快速发送项
+ */
+function handleSave() {
+
+  let topic = formTopic.value.trim();
+
+  if (!topic) {
+    msg.warning('请输入目标主题');
+    return;
+  }
+
+  let payload = formPayload.value;
+  let qos = formQos.value;
+  let retain = formRetain.value;
+
+  if (isEdit.value) {
+
+    let idx = quickList.value.findIndex((item) => item.id === formId.value);
+
+    if (idx !== -1) {
+      quickList.value[idx] = {
+        ...quickList.value[idx],
+        topic,
+        payload,
+        qos,
+        retain,
+      };
+    }
+
+  } else {
+
+    quickList.value.push({
+      id: generateId(),
+      topic,
+      payload,
+      qos,
+      retain,
+    });
+
+  }
+
+  showModal.value = false;
+}
+
+/**
+ * 删除快速发送项
+ * @param {QuickSendItem} item
+ */
+function handleDelete(item) {
+
+  dialog.warning({
+    title: '确认删除',
+    content: `确定要删除主题 "${item.topic}" 的快速消息吗？`,
+    positiveText: '删除',
+    negativeText: '取消',
+    onPositiveClick: () => {
+      quickList.value = quickList.value.filter((i) => i.id !== item.id);
+    },
+  });
+
+}
+
+/**
+ * 开始拖拽
+ * @param {DragEvent} e
+ * @param {QuickSendItem} item
+ * @param {number} index
+ */
+function handleDragStart(e, item, index) {
+  dragIndex.value = index;
+  dragItem.value = item;
+  if (e.dataTransfer) {
+    e.dataTransfer.effectAllowed = 'move';
+    e.dataTransfer.setData('text/plain', item.id);
+  }
+}
+
+/**
+ * 拖拽经过目标项
+ * @param {DragEvent} e
+ * @param {number} index
+ */
+function handleDragOver(e, index) {
+  e.preventDefault();
+  if (e.dataTransfer) {
+    e.dataTransfer.dropEffect = 'move';
+  }
+  if (dragIndex.value === -1 || dragIndex.value === index) {
+    return;
+  }
+}
+
+/**
+ * 放置拖拽项
+ * @param {DragEvent} e
+ * @param {number} index
+ */
+function handleDrop(e, index) {
+  e.preventDefault();
+  if (dragIndex.value === -1 || dragIndex.value === index) {
+    return;
+  }
+
+  let item = quickList.value[dragIndex.value];
+
+  quickList.value.splice(dragIndex.value, 1);
+  quickList.value.splice(index, 0, item);
+}
+
+/**
+ * 拖拽结束
+ */
+function handleDragEnd() {
+  dragIndex.value = -1;
+  dragItem.value = null;
+}
+
+/**
+ * 发送消息到当前服务器
+ * @param {QuickSendItem} item
+ */
+async function handleSend(item) {
+
+  let srv = store.activeServer.value;
+
+  if (!srv) {
+    msg.warning('请先在左侧选择一个 MQTT 服务器');
+    return;
+  }
+
+  if (srv.status !== 'connected') {
+    msg.warning('请先连接服务器');
+    return;
+  }
+
+  let result = await store.publishMessage(srv.id, item.topic, item.payload, {
+    qos: item.qos,
+    retain: item.retain,
+  });
+
+  if (result) {
+    msg.success('消息已发布到: ' + item.topic);
+  }
+
+}
+
+/**
+ * 复制主题到剪贴板
+ * @param {string} topic
+ */
+async function copyTopic(topic) {
+  try {
+    await navigator.clipboard.writeText(topic);
+    msg.success('主题已复制');
+  } catch {
+    msg.error('复制失败');
+  }
+}
+
+/**
+ * 格式化消息内容为 JSON
+ */
+function handleFormatJson() {
+  try {
+
+    let obj = JSON.parse(formPayload.value);
+
+    formPayload.value = JSON.stringify(obj, null, 2);
+    msg.info('JSON 已格式化');
+
+  } catch {
+    msg.warning('无效的 JSON 格式');
+  }
+}
+
+/**
+ * 选中或取消选中单个快速消息
+ * @param {string} id
+ * @param {boolean} checked
+ */
+function handleSelectItem(id, checked) {
+  if (checked) {
+    selectedIds.value.push(id);
+  } else {
+    selectedIds.value = selectedIds.value.filter((i) => i !== id);
+  }
+}
+
+/**
+ * 切换全选状态
+ */
+function handleToggleSelectAll() {
+  if (isAllSelected.value) {
+    selectedIds.value = [];
+  } else {
+    selectedIds.value = quickList.value.map((item) => item.id);
+  }
+}
+
+/**
+ * 批量删除选中的快速消息
+ */
+function handleBatchDelete() {
+
+  if (!hasSelected.value) {
+    return;
+  }
+
+  dialog.warning({
+    title: '确认批量删除',
+    content: `确定要删除选中的 ${selectedIds.value.length} 条快速消息吗？`,
+    positiveText: '删除',
+    negativeText: '取消',
+    onPositiveClick: () => {
+      quickList.value = quickList.value.filter((item) => !selectedIds.value.includes(item.id));
+      selectedIds.value = [];
+    },
+  });
+
+}
+
+/**
+ * 导出快速消息列表为 JSON 文件
+ */
+function handleExport() {
+
+  let data = quickList.value;
+  let blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
+  let url = URL.createObjectURL(blob);
+  let a = document.createElement('a');
+
+  a.href = url;
+  a.download = `frost-mqtt-quick-send-${new Date().toISOString().slice(0, 10)}.json`;
+  a.click();
+
+  URL.revokeObjectURL(url);
+  msg.success('快速消息已导出');
+
+}
+
+/**
+ * 触发文件导入点击
+ */
+function handleImportClick() {
+  fileInput.value?.click();
+}
+
+/**
+ * 处理导入的 JSON 文件
+ * @param {Event} event
+ */
+function handleImportFile(event) {
+
+  let file = event.target.files?.[0];
+
+  if (!file) {
+    return;
+  }
+
+  let reader = new FileReader();
+
+  reader.onload = (e) => {
+    try {
+
+      let data = JSON.parse(String(e.target?.result || ''));
+
+      if (!Array.isArray(data)) {
+        msg.error('导入失败: 文件内容不是数组');
+        return;
+      }
+
+      let validItems = data.filter((item) => {
+        return item && typeof item.id === 'string' && typeof item.topic === 'string';
+      });
+
+      if (validItems.length === 0) {
+        msg.warning('未找到有效的快速消息');
+        return;
+      }
+
+      dialog.create({
+        title: '选择导入方式',
+        content: `检测到 ${validItems.length} 条快速消息，请选择导入方式：`,
+        positiveText: '追加',
+        negativeText: '覆盖',
+        class: 'quick-send-dialog',
+        onPositiveClick: () => {
+          let existingIds = new Set(quickList.value.map((item) => item.id));
+          let itemsToAdd = validItems.map((item) => {
+            if (existingIds.has(item.id)) {
+              return { ...item, id: generateId() };
+            }
+            return item;
+          });
+          quickList.value.push(...itemsToAdd);
+          selectedIds.value = [];
+          msg.success(`已追加 ${itemsToAdd.length} 条快速消息`);
+        },
+        onNegativeClick: () => {
+          quickList.value = validItems;
+          selectedIds.value = [];
+          msg.success(`已覆盖为导入的 ${validItems.length} 条快速消息`);
+        },
+      });
+
+    } catch (err) {
+      msg.error('导入失败: ' + (err.message || '未知错误'));
+    }
+  };
+
+  reader.onerror = () => {
+    msg.error('读取文件失败');
+  };
+
+  reader.readAsText(file);
+  event.target.value = '';
+
+}
+
+function updateColumnCount(width) {
+  if (width >= 1520) {
+    columnCount.value = 3;
+  } else if (width >= 720) {
+    columnCount.value = 2;
+  } else {
+    columnCount.value = 1;
+  }
+}
+
+onMounted(() => {
+  resizeObserver = new ResizeObserver((entries) => {
+    for (let entry of entries) {
+      updateColumnCount(entry.contentRect.width);
+    }
+  });
+  if (containerRef.value) {
+    resizeObserver.observe(containerRef.value);
+    updateColumnCount(containerRef.value.clientWidth);
+  }
+});
+
+onUnmounted(() => {
+  if (resizeObserver) {
+    resizeObserver.disconnect();
+    resizeObserver = null;
+  }
+});
+</script>
+
+<template>
+
+  <div
+    ref="containerRef"
+    class="quick-send-view"
+  >
+    <n-card
+      size="small"
+      :content-style="{
+        display: 'flex',
+        flexDirection: 'column',
+        minHeight: 0,
+        overflow: 'hidden',
+      }"
+    >
+      <n-space
+        style="margin-bottom: 12px"
+        align="center"
+      >
+        <n-button
+          type="primary"
+          @click="handleAdd"
+        >新增快速消息</n-button>
+        <n-button
+          size="small"
+          :disabled="quickList.length === 0"
+          @click="handleToggleSelectAll"
+        >{{ isAllSelected ? '取消全选' : '全选' }}</n-button>
+        <n-button
+          size="small"
+          type="error"
+          ghost
+          :disabled="!hasSelected"
+          @click="handleBatchDelete"
+        >批量删除</n-button>
+        <n-button
+          size="small"
+          @click="handleImportClick"
+        >导入</n-button>
+        <n-button
+          size="small"
+          @click="handleExport"
+        >导出</n-button>
+      </n-space>
+
+      <n-empty
+        v-if="quickList.length === 0"
+        description="暂无快速发送消息，点击上方按钮添加"
+      />
+
+      <div
+        v-else
+        class="quick-list"
+        :class="`columns-${columnCount}`"
+      >
+        <div
+          v-for="(item, index) in quickList"
+          :key="item.id"
+          class="quick-item"
+          :class="{ dragging: dragIndex === index }"
+          draggable="true"
+          @dragstart="handleDragStart($event, item, index)"
+          @dragover.prevent="handleDragOver($event, index)"
+          @drop.prevent="handleDrop($event, index)"
+          @dragend="handleDragEnd"
+        >
+          <div class="quick-header">
+            <n-checkbox
+              class="quick-checkbox"
+              :checked="selectedIds.includes(item.id)"
+              @update:checked="(checked) => handleSelectItem(item.id, checked)"
+              @click.stop
+            />
+            <div class="quick-topic-wrap">
+              <span class="quick-dir pub">PUB</span>
+              <span
+                class="quick-topic"
+                :title="item.topic"
+                @click="copyTopic(item.topic)"
+              >{{ item.topic }}</span>
+              <span class="quick-meta">QoS{{ item.qos }}{{ item.retain ? ' R' : '' }}</span>
+            </div>
+            <n-space>
+              <n-button
+                size="tiny"
+                :disabled="!hasActiveServer"
+                type="primary"
+                @click="handleSend(item)"
+              >发送</n-button>
+              <n-button
+                size="tiny"
+                @click="handleEdit(item)"
+              >编辑</n-button>
+              <n-button
+                size="tiny"
+                type="error"
+                ghost
+                @click="handleDelete(item)"
+              >删除</n-button>
+            </n-space>
+          </div>
+          <pre
+            v-if="item.payload"
+            class="quick-payload"
+          >{{ item.payload }}</pre>
+        </div>
+      </div>
+      <input
+        ref="fileInput"
+        type="file"
+        accept=".json,application/json"
+        style="display: none"
+        @change="handleImportFile"
+      >
+    </n-card>
+
+    <n-modal
+      v-model:show="showModal"
+      class="quick-send-modal"
+      :title="isEdit ? '编辑快速消息' : '新增快速消息'"
+      preset="card"
+      style="width: 520px; max-width: 90vw"
+      :bordered="false"
+      :segmented="{ content: true }"
+    >
+      <n-form
+        label-placement="top"
+        :show-feedback="false"
+      >
+        <n-form-item label="目标主题">
+          <n-input
+            v-model:value="formTopic"
+            placeholder="例如: sensor/device01/temperature"
+          />
+        </n-form-item>
+        <n-grid
+          cols="2"
+          x-gap="12"
+        >
+          <n-grid-item>
+            <n-form-item label="QoS">
+              <n-select
+                v-model:value="formQos"
+                :options="qosOptions"
+              />
+            </n-form-item>
+          </n-grid-item>
+          <n-grid-item>
+            <n-form-item label="保留消息">
+              <n-switch v-model:value="formRetain" />
+            </n-form-item>
+          </n-grid-item>
+        </n-grid>
+        <n-form-item label="消息内容">
+          <div class="payload-field">
+            <n-input
+              v-model:value="formPayload"
+              type="textarea"
+              :resizable="false"
+              :rows="6"
+              placeholder="输入要发送的消息内容"
+            />
+            <n-button
+              size="small"
+              @click="handleFormatJson"
+            >格式化 JSON</n-button>
+          </div>
+        </n-form-item>
+      </n-form>
+      <template #footer>
+        <n-space justify="end">
+          <n-button @click="showModal = false">取消</n-button>
+          <n-button
+            type="primary"
+            @click="handleSave"
+          >保存</n-button>
+        </n-space>
+      </template>
+    </n-modal>
+  </div>
+
+</template>
+
+<style scoped>
+.quick-send-view {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  height: 100%;
+  min-width: 0;
+  min-height: 0;
+}
+
+.quick-send-view :deep(.n-card) {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  min-height: 0;
+}
+
+.quick-send-view :deep(.n-card__content) {
+  flex: 1 1 auto;
+  min-height: 0;
+  overflow: hidden;
+}
+
+.quick-list {
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: 12px;
+  padding-right: 4px;
+  align-content: start;
+}
+
+.quick-list.columns-1 {
+  grid-template-columns: 1fr;
+}
+
+.quick-list.columns-2 {
+  grid-template-columns: repeat(2, 1fr);
+}
+
+.quick-list.columns-3 {
+  grid-template-columns: repeat(3, 1fr);
+}
+
+.payload-field {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  width: 100%;
+}
+
+.payload-field :deep(.n-input) {
+  width: 100%;
+}
+
+.payload-field .n-button {
+  align-self: flex-end;
+}
+
+.quick-item {
+  border: 1px solid rgba(0, 0, 0, 0.08);
+  border-radius: 6px;
+  padding: 12px;
+  background: #fafafa;
+  cursor: grab;
+  transition: box-shadow 0.2s, opacity 0.2s;
+}
+
+.quick-item.dragging {
+  opacity: 0.6;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
+  cursor: grabbing;
+}
+
+.quick-header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 8px;
+  min-width: 0;
+}
+
+.quick-checkbox {
+  flex-shrink: 0;
+  margin-top: 2px;
+}
+
+.quick-checkbox :deep(.n-checkbox-box) {
+  width: 16px;
+  height: 16px;
+}
+
+.quick-topic-wrap {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-width: 0;
+  flex: 1;
+  flex-wrap: wrap;
+}
+
+.quick-dir {
+  flex-shrink: 0;
+  font-weight: 700;
+  width: 28px;
+  font-size: 12px;
+}
+
+.quick-dir.pub {
+  color: #3b82f6;
+}
+
+.quick-topic {
+  color: #d25a00;
+  min-width: 0;
+  flex: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  cursor: pointer;
+  font-family: monospace;
+  font-size: 13px;
+}
+
+.quick-topic:hover {
+  text-decoration: underline;
+}
+
+.quick-meta {
+  color: #999;
+  font-size: 11px;
+  flex-shrink: 0;
+  font-family: monospace;
+}
+
+.quick-payload {
+  margin: 10px 0 0;
+  padding: 8px 10px;
+  border-radius: 4px;
+  background: rgba(0, 0, 0, 0.04);
+  color: #333;
+  font: inherit;
+  white-space: pre-wrap;
+  overflow-wrap: anywhere;
+  font-family: monospace;
+  font-size: 12px;
+  line-height: 1.6;
+  max-height: 120px;
+  overflow-y: auto;
+}
+
+.quick-send-modal .n-form-item {
+  margin-bottom: 20px;
+}
+
+.quick-send-modal .n-form-item__label {
+  margin-bottom: 8px;
+}
+
+.quick-send-modal .n-form-item:last-child {
+  margin-bottom: 0;
+}
+
+.quick-send-modal .n-grid {
+  margin-bottom: 20px;
+}
+
+.quick-send-dialog .n-dialog__icon {
+  color: #0ea5a0;
+}
+</style>