feat: update fragment while scrolling and on menu clicks

closes #138, #202

lib/components/Method/method.ts

@@ -3,7 +3,7 @@ import { Input, HostBinding, Component, OnInit, ChangeDetectionStrategy, Element
 import JsonPointer from '../../utils/JsonPointer';
 import { BaseComponent, SpecManager } from '../base';
 import { SchemaHelper } from '../../services/schema-helper.service';
-import { OptionsService } from '../../services/';
+import { OptionsService, MenuService } from '../../services/';
 
 
 interface MethodInfo {
@@ -36,7 +36,10 @@ export class Method extends BaseComponent implements OnInit {
 
   method: MethodInfo;
 
-  constructor(specMgr:SpecManager, private optionsService: OptionsService) {
+  constructor(
+    specMgr:SpecManager,
+    private optionsService: OptionsService,
+    private menu: MenuService) {
     super(specMgr);
   }
 
@@ -58,11 +61,9 @@ export class Method extends BaseComponent implements OnInit {
   }
 
   buildAnchor() {
-    if (this.operationId) {
+    this.menu.hashFor(this.pointer,
-      return 'operation/' + encodeURIComponent(this.componentSchema.operationId);
+      { type: 'method', operationId: this.operationId, pointer: this.pointer },
-    } else {
+      this.parentTagId );
-      return this.parentTagId + encodeURIComponent(this.pointer);
-    }
   }
 
   filterMainTags(tags) {

lib/services/hash.service.ts

@@ -7,6 +7,7 @@ import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 @Injectable()
 export class Hash {
   public value = new BehaviorSubject<string | null>(null);
+  private noEmit:boolean = false;
   constructor(private location: PlatformLocation) {
     this.bind();
   }
@@ -21,7 +22,17 @@ export class Hash {
 
   bind() {
     this.location.onHashChange(() => {
+      if (this.noEmit) return;
       this.value.next(this.hash);
     });
   }
+
+  update(hash: string|null) {
+    if (!hash) return;
+    this.noEmit = true;
+    window.location.hash = hash;
+    setTimeout(() => {
+      this.noEmit = false;
+    });
+  }
 }

lib/services/menu.service.spec.ts

@@ -24,6 +24,7 @@ describe('Menu service', () => {
   beforeEach(inject([SpecManager, Hash, ScrollService, LazyTasksService],
   ( _specMgr, _hash, _scroll, _tasks) => {
     hashService = _hash;
+    spyOn(hashService, 'update').and.stub();
     scroll = _scroll;
     tasks = _tasks;
     specMgr = _specMgr;

lib/services/menu.service.ts

@@ -216,6 +216,8 @@ export class MenuService {
       cItem.parent.active = true;
       cItem = cItem.parent;
     }
+    console.log(idx, '>>>>>>>>>>>>> woooohooooo');
+    this.hash.update(this.hashFor(item.id, item.metadata, item.parent && item.parent.id));
     this.changedActiveItem.next(item);
   }
 
@@ -320,6 +322,23 @@ export class MenuService {
     return res;
   }
 
+  hashFor(
+    id: string|null, itemMeta:
+    {operationId: string, type: string, pointer: string},
+    parentId: string
+  ) {
+    if (!id) return null;
+    if (itemMeta && itemMeta.type === 'method') {
+      if (itemMeta.operationId) {
+        return 'operation/' + encodeURIComponent(itemMeta.operationId);
+      } else {
+        return parentId + encodeURIComponent(itemMeta.pointer);
+      }
+    } else {
+      return id;
+    }
+  }
+
   getTagsItems(parent: MenuItem, tagGroup:TagGroup = null):MenuItem[] {
     let schema = this.specMgr.schema;