Visual feedback on failure to fetch new statuses

src/components/timeline/timeline.vue

@@ -4,10 +4,13 @@
       <div class="title">
         {{title}}
       </div>
-      <button @click.prevent="showNewStatuses" class="base06 base02-background loadmore-button" v-if="timeline.newStatusCount > 0">
+      <button @click.prevent="showNewStatuses" class="base06 base02-background loadmore-button" v-if="timeline.newStatusCount > 0 && !timeline.error">
         Show new ({{timeline.newStatusCount}})
       </button>
-      <button @click.prevent class="base04 base01-background no-press loadmore-button" v-if="!timeline.newStatusCount > 0">
+      <button @click.prevent class="base06 error no-press loadmore-button" v-if="timeline.error">
+          Error fetching updates
+      </button>
+      <button @click.prevent class="base04 base01-background no-press loadmore-button" v-if="!timeline.newStatusCount > 0 && !timeline.error">
         Up-to-date
       </button>
     </div>
@@ -43,6 +46,9 @@
       padding: 0.1em 0.3em 0.25em 0.3em;
       min-width: 6em;
     }
+    .error {
+      background-color: rgba(255, 48, 16, 0.65);
+    }
     .no-press {
       opacity: 0.8;
       cursor: default;

src/modules/statuses.js

@@ -15,7 +15,8 @@ export const defaultState = {
       newStatusCount: 0,
       maxId: 0,
       minVisibleId: 0,
-      loading: false
+      loading: false,
+      error: false
     },
     public: {
       statuses: [],
@@ -24,7 +25,8 @@ export const defaultState = {
       newStatusCount: 0,
       maxId: 0,
       minVisibleId: 0,
-      loading: false
+      loading: false,
+      error: false
     },
     publicAndExternal: {
       statuses: [],
@@ -33,7 +35,8 @@ export const defaultState = {
       newStatusCount: 0,
       maxId: 0,
       minVisibleId: 0,
-      loading: false
+      loading: false,
+      error: false
     },
     friends: {
       statuses: [],
@@ -42,7 +45,8 @@ export const defaultState = {
       newStatusCount: 0,
       maxId: 0,
       minVisibleId: 0,
-      loading: false
+      loading: false,
+      error: false
     }
   }
 }
@@ -280,6 +284,9 @@ export const mutations = {
     const newStatus = find(state.allStatuses, { id })
     newStatus.nsfw = nsfw
   },
+  setError (state, { timeline, value }) {
+    state.timelines[timeline].error = value
+  },
   markNotificationsAsSeen (state, notifications) {
     each(notifications, (notification) => {
       notification.seen = true
@@ -293,6 +300,9 @@ const statuses = {
     addNewStatuses ({ rootState, commit }, { statuses, showImmediately = false, timeline = false, noIdUpdate = false }) {
       commit('addNewStatuses', { statuses, showImmediately, timeline, noIdUpdate, user: rootState.users.currentUser })
     },
+    setError ({ rootState, commit }, { timeline, value }) {
+      commit('setError', { timeline, value })
+    },
     deleteStatus ({ rootState, commit }, status) {
       commit('setDeleted', { status })
       apiService.deleteStatus({ id: status.id, credentials: rootState.users.currentUser.credentials })

src/services/timeline_fetcher/timeline_fetcher.service.js

@@ -12,6 +12,15 @@ const update = ({store, statuses, timeline, showImmediately}) => {
   })
 }
 
+const setError = ({store, timeline, value}) => {
+  const ccTimeline = camelCase(timeline)
+
+  store.dispatch('setError', {
+    timeline: ccTimeline,
+    value
+  })
+}
+
 const fetchAndUpdate = ({store, credentials, timeline = 'friends', older = false, showImmediately = false}) => {
   const args = { timeline, credentials }
   const rootState = store.rootState || store.state
@@ -25,6 +34,8 @@ const fetchAndUpdate = ({store, credentials, timeline = 'friends', older = false
 
   return apiService.fetchTimeline(args)
     .then((statuses) => update({store, statuses, timeline, showImmediately}))
+    .then(() => setError({store, timeline, value: false}))
+    .catch(() => setError({store, timeline, value: true}))
 }
 
 const startFetching = ({ timeline = 'friends', credentials, store }) => {