Add error message in post status form when failing to post and don't get rid of post/attachments when failing.

src/components/post_status_form/post_status_form.js

@@ -39,6 +39,7 @@ const PostStatusForm = {
     return {
       dropFiles: [],
       submitDisabled: false,
+      error: null,
       newStatus: {
         status: statusText,
         files: []
@@ -90,7 +91,8 @@ const PostStatusForm = {
         media: newStatus.files,
         store: this.$store,
         inReplyToStatusId: this.replyTo
-      })
+      }).then((data) => {
+        if (!data.error) {
           this.newStatus = {
             status: '',
             files: []
@@ -98,6 +100,11 @@ const PostStatusForm = {
           this.$emit('posted')
           let el = this.$el.querySelector('textarea')
           el.style.height = '16px'
+          this.error = null
+        } else {
+          this.error = data.error
+        }
+      })
     },
     addMediaFile (fileInfo) {
       this.newStatus.files.push(fileInfo)

src/components/post_status_form/post_status_form.vue

@@ -19,6 +19,9 @@
         <media-upload @uploading="disableSubmit" @uploaded="addMediaFile" @upload-failed="enableSubmit" :drop-files="dropFiles"></media-upload>
         <button :disabled="submitDisabled" type="submit" class="btn btn-default base05 base01-background">Submit</button>
       </div>
+      <div class='error' v-if="error">
+        Error: {{ error }}
+      </div>
       <div class="attachments">
         <div class="attachment" v-for="file in newStatus.files">
           <i class="fa icon-cancel" @click="removeMediaFile(file)"></i>
@@ -61,6 +64,13 @@
              width: 10em;
          }
      }
+     .error {
+       border-radius: 5px;
+       text-align: center;
+       background-color: rgba(255, 48, 16, 0.65);
+       padding: 0.25em;
+       margin: 0.35em;
+     }
 
      .attachments {
          padding: 0 0.5em;

src/services/status_poster/status_poster.service.js

@@ -7,12 +7,15 @@ const postStatus = ({ store, status, media = [], inReplyToStatusId = undefined }
   return apiService.postStatus({credentials: store.state.users.currentUser.credentials, status, mediaIds, inReplyToStatusId})
     .then((data) => data.json())
     .then((data) => {
+      if (!data.error) {
         store.dispatch('addNewStatuses', {
           statuses: [data],
           timeline: 'friends',
           showImmediately: true,
           noIdUpdate: true // To prevent missing notices on next pull.
         })
+      }
+      return data
     })
 }