From bb4c9e2a55da537608aad2f7f6d6e51a554a2c1c Mon Sep 17 00:00:00 2001
From: Willian Galvani <williangalvani@gmail.com>
Date: Mon, 13 Apr 2026 16:07:40 -0300
Subject: [PATCH] Add top bar STATUSTEXT widget with history popover

Register a compact Vehicle messages widget in the app bar that listens
for MAVLink STATUSTEXT, expands in place with severity coloring, and
keeps a short recent history behind the message icon.

Made-with: Cursor
---
 core/frontend/src/App.vue                |   6 +
 core/frontend/src/widgets/Statustext.vue | 248 +++++++++++++++++++++++
 2 files changed, 254 insertions(+)
 create mode 100644 core/frontend/src/widgets/Statustext.vue

diff --git a/core/frontend/src/App.vue b/core/frontend/src/App.vue
index 7b087c1da3..6306fd6acd 100644
--- a/core/frontend/src/App.vue
+++ b/core/frontend/src/App.vue
@@ -434,6 +434,7 @@ import { TopBarWidget } from './types/common'
 import Cpu from './widgets/Cpu.vue'
 import Disk from './widgets/Disk.vue'
 import Networking from './widgets/Networking.vue'
+import Statustext from './widgets/Statustext.vue'
 
 export default Vue.extend({
   name: 'App',
@@ -492,6 +493,11 @@ export default Vue.extend({
           name: 'Disk',
           props: {},
         },
+        {
+          component: Statustext,
+          name: 'Vehicle messages',
+          props: {},
+        },
       ]
       // lets filter out docker, veth, and zerotier interfaces
       if (!system_information.system?.network) {
diff --git a/core/frontend/src/widgets/Statustext.vue b/core/frontend/src/widgets/Statustext.vue
new file mode 100644
index 0000000000..ea1ea9f854
--- /dev/null
+++ b/core/frontend/src/widgets/Statustext.vue
@@ -0,0 +1,248 @@
+<template>
+  <div
+    class="statustext-widget"
+    :class="{ 'statustext-widget--front': is_expanded || !!toast_text }"
+  >
+    <v-card
+      class="statustext-card d-flex align-center flex-nowrap"
+      :class="{ 'statustext-card--open': is_expanded }"
+      :color="toast_text ? toast_color : undefined"
+      :elevation="is_expanded ? 4 : 1"
+      height="40"
+    >
+      <div class="statustext-icon-cell">
+        <v-tooltip bottom>
+          <template #activator="{ on: tipOn }">
+            <v-menu
+              v-model="menu_open"
+              offset-y
+              :close-on-content-click="false"
+              min-width="320"
+              max-width="480"
+            >
+              <template #activator="{ on: menuOn, attrs }">
+                <v-btn
+                  icon
+                  small
+                  class="statustext-menu-btn"
+                  v-bind="attrs"
+                  v-on="{ ...tipOn, ...menuOn }"
+                >
+                  <v-icon>
+                    mdi-message-text-outline
+                  </v-icon>
+                </v-btn>
+              </template>
+              <v-card>
+                <v-card-title class="py-2 subtitle-1">
+                  Recent vehicle messages
+                </v-card-title>
+                <v-divider />
+                <v-list v-if="recent_entries.length" dense max-height="320" class="py-0 overflow-y-auto">
+                  <v-list-item
+                    v-for="entry in recent_entries"
+                    :key="entry.id"
+                    class="align-start"
+                  >
+                    <v-list-item-content>
+                      <v-list-item-title class="text-wrap text-body-2">
+                        <span class="text-caption statustext-muted statustext-time">{{ entry.time }}</span>
+                        <span class="mx-1 statustext-muted">·</span>
+                        <span>{{ entry.text }}</span>
+                      </v-list-item-title>
+                    </v-list-item-content>
+                  </v-list-item>
+                </v-list>
+                <v-card-text v-else class="text-caption statustext-muted">
+                  No STATUSTEXT messages yet.
+                </v-card-text>
+              </v-card>
+            </v-menu>
+          </template>
+          <span>MAVLink STATUSTEXT — click for history</span>
+        </v-tooltip>
+      </div>
+      <div class="statustext-body">
+        <span class="statustext-message text-body-2">{{ toast_text }}</span>
+      </div>
+    </v-card>
+  </div>
+</template>
+
+<script lang="ts">
+import Vue from 'vue'
+
+import mavlink2rest from '@/libs/MAVLink2Rest'
+import Listener from '@/libs/MAVLink2Rest/Listener'
+
+const MAX_RECENT = 20
+const TOAST_MS = 5500
+const COLLAPSE_MS = 340
+
+function statustextToString(raw: unknown): string {
+  if (!Array.isArray(raw) || raw.length === 0) {
+    return ''
+  }
+  const first = raw[0]
+  if (typeof first === 'number') {
+    return raw
+      .map((c: number) => String.fromCharCode(c & 0xff))
+      .join('')
+      .replace(/\0/g, '')
+      .trimEnd()
+  }
+  return raw.join('')
+}
+
+function severityType(sev: unknown): string {
+  if (sev && typeof sev === 'object' && 'type' in (sev as Record<string, unknown>)) {
+    return String((sev as { type: string }).type)
+  }
+  return 'MAV_SEVERITY_INFO'
+}
+
+function severityToColor(sevType: string): string {
+  if ([
+    'MAV_SEVERITY_EMERGENCY',
+    'MAV_SEVERITY_ALERT',
+    'MAV_SEVERITY_CRITICAL',
+    'MAV_SEVERITY_ERROR',
+  ].includes(sevType)) {
+    return 'error'
+  }
+  if (sevType === 'MAV_SEVERITY_WARNING') {
+    return 'warning'
+  }
+  if (sevType === 'MAV_SEVERITY_NOTICE' || sevType === 'MAV_SEVERITY_INFO') {
+    return 'info'
+  }
+  return 'secondary'
+}
+
+type StatustextEntry = { id: number; text: string; time: string }
+
+export default Vue.extend({
+  name: 'StatustextWidget',
+  data() {
+    return {
+      listener: undefined as Listener | undefined,
+      menu_open: false,
+      next_entry_id: 0,
+      recent_entries: [] as StatustextEntry[],
+      toast_text: '' as string,
+      toast_severity: 'MAV_SEVERITY_INFO' as string,
+      is_expanded: false,
+      hide_timer: 0,
+      collapse_timer: 0,
+    }
+  },
+  computed: {
+    toast_color(): string {
+      return severityToColor(this.toast_severity)
+    },
+  },
+  mounted() {
+    this.listener = mavlink2rest.startListening('STATUSTEXT').setCallback((receivedMessage) => {
+      const text = statustextToString(receivedMessage?.message?.text)
+      if (!text) {
+        return
+      }
+      if (this.recent_entries.length && this.recent_entries[0].text === text) {
+        return
+      }
+      const sevType = severityType(receivedMessage?.message?.severity)
+      const time = new Date().toLocaleTimeString(undefined, { hour12: false })
+      this.next_entry_id += 1
+      this.recent_entries.unshift({ id: this.next_entry_id, text, time })
+      if (this.recent_entries.length > MAX_RECENT) {
+        this.recent_entries.pop()
+      }
+      this.showToast(text, sevType)
+    }).setFrequency(0)
+  },
+  beforeDestroy() {
+    window.clearTimeout(this.hide_timer)
+    window.clearTimeout(this.collapse_timer)
+    this.listener?.discard()
+  },
+  methods: {
+    showToast(text: string, sevType: string): void {
+      window.clearTimeout(this.hide_timer)
+      window.clearTimeout(this.collapse_timer)
+      this.toast_text = text
+      this.toast_severity = sevType
+      this.is_expanded = true
+      this.hide_timer = window.setTimeout(() => {
+        this.is_expanded = false
+        this.collapse_timer = window.setTimeout(() => {
+          this.toast_text = ''
+        }, COLLAPSE_MS)
+      }, TOAST_MS)
+    },
+  },
+})
+</script>
+
+<style scoped>
+.statustext-widget {
+  align-self: center;
+  flex: 0 0 auto;
+  height: 40px;
+  z-index: 1;
+}
+
+.statustext-widget--front {
+  z-index: 25;
+}
+
+.statustext-card {
+  overflow: hidden;
+  border-radius: 4px;
+  max-width: 40px;
+  transition: max-width 0.32s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.28s ease;
+}
+
+.statustext-card--open {
+  max-width: min(400px, calc(100vw - 160px));
+}
+
+.statustext-icon-cell {
+  flex: 0 0 40px;
+  width: 40px;
+  height: 40px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.statustext-menu-btn {
+  margin: 0 !important;
+  width: 36px !important;
+  height: 36px !important;
+}
+
+.statustext-body {
+  flex: 1 1 auto;
+  min-width: 0;
+  overflow: hidden;
+  max-height: 40px;
+  padding-right: 10px;
+}
+
+.statustext-message {
+  display: block;
+  line-height: 1.3;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.statustext-muted {
+  color: inherit;
+  opacity: 0.68;
+}
+
+.statustext-time {
+  font-variant-numeric: tabular-nums;
+}
+</style>