Add error handling for get-timeline

src/components/Timeline/Column.vue

@@ -60,7 +60,11 @@ export default class Column extends Vue {
 
   created() {
     // timelineのnameとtypeをthis.idから取得する
-    let doc: TimelineDoc = ipcRenderer.sendSync('get-timeline', this.id)
+    let doc: TimelineDoc | null = ipcRenderer.sendSync('get-timeline', this.id)
+    if (doc === null) {
+      this.$destroy()
+      return
+    }
     this.name = doc.name
     this.type = doc.type
 

src/main/Timeline.ts

@@ -27,7 +27,13 @@ export default class Timeline {
 
     public static ready() {
         ipcMain.on('add-timeline', (event: Event, name: string, type: string) => this.onAddTimeline(event, name, type))
-        ipcMain.on('get-timeline', async (event: Event, id: string) => event.returnValue = await this.getTimeline(id))
+        ipcMain.on('get-timeline', async (event: Event, id: string) => {
+            try {
+                event.returnValue = await this.getTimeline(id)
+            } catch (error) {
+                event.returnValue = null
+            }
+        })
 
         ipcMain.on('no-auth-timeline', (event: Event, name: string) => this.onNoAuthTimeline(event, name))