[Update] 避免搜索多次

src/app/elements/asset-tree/asset-tree.component.ts

 import {Component, Input, OnInit, OnDestroy, ElementRef, ViewChild} from '@angular/core';
 import {MatDialog} from '@angular/material';
-import {BehaviorSubject} from 'rxjs';
+import {BehaviorSubject, Subject} from 'rxjs';
+import {takeUntil} from 'rxjs/operators';
 import {ActivatedRoute} from '@angular/router';
 
 import {AppService, HttpService, LogService, NavService, SettingService, TreeFilterService} from '@app/services';
@@ -44,6 +45,7 @@ export class ElementAssetTreeComponent implements OnInit, OnDestroy {
   hasLoginTo = false;
   treeFilterSubscription: any;
   isLoadTreeAsync: boolean;
+  filterAssetCancel$: Subject<boolean> = new Subject();
 
   constructor(private _appSvc: AppService,
               private _treeFilterSvc: TreeFilterService,
@@ -330,17 +332,23 @@ export class ElementAssetTreeComponent implements OnInit, OnDestroy {
       }
       return;
     }
-    this._http.getMyGrantedAssets(keyword).subscribe(nodes => {
-      const treeNodes = this.assetsTree.getNodes();
-      if (treeNodes.length !== 0) {
-        this.assetsTree.hideNode(treeNodes[0]);
-      }
-      const newNode = {id: 'search', name: translate('Search'), isParent: true, open: true, zAsync: true};
-      const parentNode = this.assetsTree.addNodes(null, newNode)[0];
-      parentNode.zAsync = true;
-      this.assetsTree.addNodes(parentNode, nodes);
-      parentNode.open = true;
-    });
+    this.filterAssetCancel$.next(true);
+    this._http.getMyGrantedAssets(keyword)
+      .pipe(takeUntil(this.filterAssetCancel$))
+      .subscribe(nodes => {
+        const treeNodes = this.assetsTree.getNodes();
+        if (treeNodes.length !== 0) {
+          this.assetsTree.hideNode(treeNodes[0]);
+        }
+        let name = translate('Search');
+        const assetsAmount = nodes.length;
+        name = `${name} (${assetsAmount})`;
+        const newNode = {id: 'search', name: name, isParent: true, open: true, zAsync: true};
+        const parentNode = this.assetsTree.addNodes(null, newNode)[0];
+        parentNode.zAsync = true;
+        this.assetsTree.addNodes(parentNode, nodes);
+        parentNode.open = true;
+      });
     return;
   }
 

src/app/elements/connect/connect.component.ts

@@ -40,29 +40,27 @@ export class ElementConnectComponent implements OnInit, OnDestroy {
         }
       }
     });
-    this.activatedRoute.queryParams.subscribe(params => {
-      const login_to = params['login_to'];
-      if (login_to && !this.hasLoginTo) {
-        this._http.filterMyGrantedAssetsById(login_to).subscribe(
-          nodes => {
-            if (nodes.length === 1) {
-              this.hasLoginTo = true;
-              const node = nodes[0];
-              this.Connect(node);
-            }
+    const loginTo = this._appSvc.getQueryString('login_to');
+    if (loginTo && !this.hasLoginTo) {
+      this._http.filterMyGrantedAssetsById(loginTo).subscribe(
+        nodes => {
+          if (nodes.length === 1) {
+            this.hasLoginTo = true;
+            const node = nodes[0];
+            this.Connect(node);
           }
-        );
-        this._http.getMyGrantedRemoteApps(login_to).subscribe(
-          nodes => {
-            if (nodes.length === 1) {
-              this.hasLoginTo = true;
-              const node = nodes[0];
-              this.Connect(node);
-            }
+        }
+      );
+      this._http.getMyGrantedRemoteApps(loginTo).subscribe(
+        nodes => {
+          if (nodes.length === 1) {
+            this.hasLoginTo = true;
+            const node = nodes[0];
+            this.Connect(node);
           }
-        );
-      }
-    });
+        }
+      );
+    }
   }
   ngOnDestroy(): void {
     connectEvt.unsubscribe();