From e4f53880761b4c091fdae620d076a3aaf3bf4a8b Mon Sep 17 00:00:00 2001
From: Roman Hotsiy <gotsijroman@gmail.com>
Date: Thu, 9 Mar 2017 23:04:15 +0200
Subject: [PATCH] fix: do not hang when swagger doesn't contain any paths

closes #216
---
 lib/services/menu.service.ts              |  2 +-
 lib/shared/components/LazyFor/lazy-for.ts | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/lib/services/menu.service.ts b/lib/services/menu.service.ts
index d0f95144f5..f3248c4db3 100644
--- a/lib/services/menu.service.ts
+++ b/lib/services/menu.service.ts
@@ -141,7 +141,7 @@ export class MenuService {
   onHashChange(hash?: string) {
     if (hash == undefined) return;
     let activated = this.activateByHash(hash);
-    if (!this.tasks.empty) {
+    if (!this.tasks.processed) {
       this.tasks.start(this.activeIdx, this);
       this.scrollService.setStickElement(this.getCurrentEl());
       if (activated) this.scrollToActive();
diff --git a/lib/shared/components/LazyFor/lazy-for.ts b/lib/shared/components/LazyFor/lazy-for.ts
index 94019cf8a5..772ba8cab8 100644
--- a/lib/shared/components/LazyFor/lazy-for.ts
+++ b/lib/shared/components/LazyFor/lazy-for.ts
@@ -31,6 +31,7 @@ export class LazyTasksService {
   private _tasks = [];
   private _current: number = 0;
   private _syncCount: number = 0;
+  private _emptyProcessed = false;
   private menuService;
 
   public loadProgress = new BehaviorSubject<number>(0);
@@ -38,8 +39,10 @@ export class LazyTasksService {
   constructor(public optionsService: OptionsService) {
   }
 
-  get empty() {
-    return this._current === this._tasks.length;
+  get processed() {
+    let res = this._tasks.length && (this._current >= this._tasks.length) || this._emptyProcessed;
+    if (!this._tasks.length) this._emptyProcessed = true;
+    return res;
   }
 
   set syncCount(n: number) {
@@ -97,10 +100,17 @@ export class LazyTasksService {
     } else {
       this.sortTasks(idx);
     }
+    syncCount = Math.min(syncCount, this._tasks.length);
     if (this.allSync) syncCount = this._tasks.length;
     for (var i = this._current; i < syncCount; i++) {
       this.nextTaskSync();
     }
+
+    if (!this._tasks.length) {
+      this.loadProgress.next(100);
+      return;
+    }
+
     this.nextTask();
   }
 }