Fixing e2e tests.

Broken e2e test due to changing the way files are uploaded. This should
fix it.

Test: npm run test:e2e
Bug: b/241571689
Change-Id: I74c8d489ecf4c0627d844505037f886d1f183b72

tools/winscope-ng/src/app/app.component.ts

@@ -20,6 +20,7 @@ import {PersistentStore} from "common/persistent_store";
 import {ViewerWindowManagerComponent} from "viewers/viewer_window_manager/viewer_window_manager.component";
 import {Core} from "./core";
 import {ProxyState, proxyClient} from "trace_collection/proxy_client";
+import { Viewer } from "viewers/viewer";
 
 @Component({
   selector: "app-root",
@@ -77,6 +78,7 @@ export class AppComponent {
   onDataLoadedChange(dataLoaded: boolean) {
     if (dataLoaded && !this.viewersCreated) {
       this.core.createViewers();
+      this.createViewerElements();
       const dummyTimestamp = this.core.getTimestamps()[1]; //TODO: get timestamp from time scrub
       this.core.notifyCurrentTimestamp(dummyTimestamp);
       this.viewersCreated = true;
@@ -84,6 +86,15 @@ export class AppComponent {
     }
   }
 
+  createViewerElements() {
+    const viewersDiv = document.querySelector("div#viewers")!;
+    viewersDiv.innerHTML = "";
+
+    this.core.getViews().forEach((view: HTMLElement) => {
+      viewersDiv.appendChild(view);
+    });
+  }
+
   public notifyCurrentTimestamp() {
     const dummyTimestamp = new Timestamp(TimestampType.ELAPSED, 1000000n);
     this.core.notifyCurrentTimestamp(dummyTimestamp);

tools/winscope-ng/src/app/upload_traces.component.ts

@@ -46,7 +46,7 @@ import { LoadedTrace } from "app/loaded_trace";
               Choose File
             </button>
             <div *ngIf="this.loadedTraces.length > 0">
-              <button mat-raised-button (click)="onLoadData()">Load Data</button>
+              <button mat-raised-button class="load-btn" (click)="onLoadData()">Load Data</button>
               <button mat-raised-button (click)="onClearData()">Clear All</button>
             </div>
           </div>

tools/winscope-ng/src/test/e2e/viewer_window_manager.spec.ts

@@ -26,6 +26,9 @@ describe("Viewer WindowManager", () => {
     const inputFile = element(by.css("input[type=\"file\"]"));
     inputFile.sendKeys(E2eTestUtils.getFixturePath("traces/elapsed_and_real_timestamp/WindowManager.pb"));
 
+    const loadData = element(by.css(".load-btn"));
+    loadData.click();
+
     const windowManagerViewerTitle = element(by.css(".viewer-window-manager .title"));
     expect(windowManagerViewerTitle.getText()).toContain("Window Manager");
   });