Create new <v-app-bar/> extension component.

Intended to be used in the v-slot:extension slot of <v-app-bar/>.

lib/www/client/source/src/components/app-bar-extension-project.vue

@@ -0,0 +1,48 @@
+<template>
+  <v-tabs :value="tab" show-arrows>
+    <v-tab v-for="tab, index in tabs" :key="index" link :to="tabLink(tab.href)" v-text="tab.text"></v-tab>
+  </v-tabs>
+</template>
+
+<script>
+import { mapActions, mapGetters } from 'vuex';
+
+export default {
+  name: 'DougalAppBarExtensionProject',
+  data() {
+    return {
+      tabs: [
+        { href: "summary", text: "Summary" },
+        { href: "lines", text: "Lines" },
+        { href: "plan", text: "Plan" },
+        { href: "sequences", text: "Sequences" },
+        { href: "calendar", text: "Calendar" },
+        { href: "log", text: "Log" },
+        { href: "qc", text: "QC" },
+        { href: "graphs", text: "Graphs" },
+        { href: "map", text: "Map" }
+      ]
+    };
+  },
+
+  computed: {
+
+    page () {
+      return this.$route.path.split(/\/+/)[3];
+    },
+
+    tab () {
+      return this.tabs.findIndex(t => t.href == this.page);
+    },
+
+  },
+
+  methods: {
+
+    tabLink (href) {
+      return `/projects/${this.$route.params.project}/${href}`;
+    }
+
+  }
+}
+</script>