use formState to update loading of save button

[ci skip]

app/assets/javascripts/issue_show/components/app.vue

@@ -114,6 +114,7 @@ export default {
           description: this.state.descriptionText,
           lockedWarningVisible: false,
           move_to_project_id: 0,
+          updateLoading: false,
         });
       }
     },
@@ -125,7 +126,7 @@ export default {
         confirm('Are you sure you want to move this issue to another project?') : true; // eslint-disable-line no-alert
 
       if (!canPostUpdate) {
-        eventHub.$emit('enable.submit.btn');
+        this.store.formState.updateLoading = false;
         return;
       }
 

app/assets/javascripts/issue_show/components/edit_actions.vue

@@ -15,7 +15,6 @@
     data() {
       return {
         deleteLoading: false,
-        updateLoading: false,
       };
     },
     computed: {
@@ -24,11 +23,8 @@
       },
     },
     methods: {
-      enableSubmit() {
-        this.updateLoading = false;
-      },
       updateIssuable() {
-        this.updateLoading = true;
+        this.formState.updateLoading = true;
         eventHub.$emit('update.issuable');
       },
       closeForm() {
@@ -43,12 +39,6 @@
         }
       },
     },
-    created() {
-      eventHub.$on('enable.submit.btn', this.enableSubmit);
-    },
-    beforeDestroy() {
-      eventHub.$off('enable.submit.btn', this.enableSubmit);
-    },
   };
 </script>
 
@@ -56,15 +46,15 @@
   <div class="prepend-top-default append-bottom-default clearfix">
     <button
       class="btn btn-save pull-left"
-      :class="{ disabled: updateLoading || !isSubmitEnabled }"
+      :class="{ disabled: formState.updateLoading || !isSubmitEnabled }"
       type="submit"
-      :disabled="updateLoading || !isSubmitEnabled"
+      :disabled="formState.updateLoading || !isSubmitEnabled"
       @click.prevent="updateIssuable">
       Save changes
       <i
         class="fa fa-spinner fa-spin"
         aria-hidden="true"
-        v-if="updateLoading">
+        v-if="formState.updateLoading">
       </i>
     </button>
     <button

app/assets/javascripts/issue_show/stores/index.js

@@ -19,6 +19,7 @@ export default class Store {
       description: '',
       lockedWarningVisible: false,
       move_to_project_id: 0,
+      updateLoading: false,
     };
   }