修复选择文件不展开文件树

frontend/src/components/Filter.vue

@@ -74,10 +74,10 @@ export default {
       this.updateSelected(this.list[index])
     },
     chooseItem (item = null) {
-      if (item) {
-        this.$emit('choose-item', item)
-      } else if (this.selected) {
-        this.$emit('choose-item', this.selected)
+      const file = item || this.selected
+      if (file) {
+        this.$emit('choose-file', file)
+        this.$bus.emit('choose-file', file)
       }
     }
   },

frontend/src/components/Tree.vue

@@ -11,7 +11,7 @@
       @delete="onDelete" />
       <transition name="fade">
         <div v-if="showFilter" class="filter-wrapper" @click="showFilter = false">
-          <XFilter @choose-item="f => { file = f; showFilter = false }" :files="files" />
+          <XFilter @choose-file="f => { showFilter = false }" :files="files" />
         </div>
       </transition>
   </aside>

frontend/src/components/TreeNode.vue

@@ -43,15 +43,20 @@ export default {
   },
   mounted () {
     this.$bus.on('editor-ready', () => {
-      const filePath = this.getSelectedFilePath()
+      this.chooseFile(this.getSelectedFilePath())
+    })
+    this.$bus.on('choose-file', file => {
+      this.chooseFile(file.path)
+    })
+  },
+  methods: {
+    chooseFile (filePath) {
       if (this.item.type === 'dir' && filePath.startsWith(this.item.path)) {
         this.$refs.dir.open = true
       } else if (filePath === this.item.path) {
         this.select(this.item)
       }
-    })
-  },
-  methods: {
+    },
     select (f) {
       if (f.name.endsWith('.md')) {
         this.$nextTick(() => {