refs #750 Switch focus between Public and Toot Detail using shortcut keys

src/renderer/components/TimelineSpace/Contents/Public.vue

@@ -14,6 +14,7 @@
         v-on:delete="deleteToot"
         @focusNext="focusNext"
         @focusPrev="focusPrev"
+        @focusRight="focusSidebar"
         @selectToot="focusToot(message)"
         >
       </toot>
@@ -33,6 +34,7 @@ import { mapState, mapGetters } from 'vuex'
 import Toot from '~/src/renderer/components/molecules/Toot'
 import scrollTop from '../../utils/scroll'
 import reloadable from '~/src/renderer/components/mixins/reloadable'
+import { Event } from '~/src/renderer/components/event'
 
 export default {
   name: 'public',
@@ -83,6 +85,15 @@ export default {
         })
     }
     this.$store.commit('TimelineSpace/changeLoading', false)
+
+    Event.$on('focus-timeline', () => {
+      // If focusedId does not change, we have to refresh focusedId because Toot component watch change events.
+      const previousFocusedId = this.focusedId
+      this.focusedId = 0
+      this.$nextTick(function () {
+        this.focusedId = previousFocusedId
+      })
+    })
   },
   beforeUpdate () {
     if (this.$store.state.TimelineSpace.SideMenu.unreadPublicTimeline && this.heading) {
@@ -94,6 +105,7 @@ export default {
       this.$store.dispatch('TimelineSpace/stopPublicStreaming')
       this.$store.dispatch('TimelineSpace/unbindPublicStreaming')
     }
+    Event.$off('focus-timeline')
   },
   destroyed () {
     this.$store.commit('TimelineSpace/Contents/Public/changeHeading', true)
@@ -195,6 +207,9 @@ export default {
     focusToot (message) {
       this.focusedId = message.uri + message.id
     },
+    focusSidebar () {
+      Event.$emit('focus-sidebar')
+    },
     handleKey (event) {
       switch (event.srcKey) {
         case 'next':