blob: c96fc88fbefc0caf38d1ebf17a813d2aa5797322 [file] [log] [blame]
// Copyright 2020 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package ui
import (
func init() {
Func: DragMaximizedWindowPerf,
Desc: "Measures the animation smoothness of dragging a maximized window in clamshell mode",
Contacts: []string{"", ""},
Attr: []string{"group:crosbolt", "crosbolt_perbuild"},
SoftwareDeps: []string{"chrome"},
HardwareDeps: hwdep.D(
Fixture: "chromeLoggedIn",
func DragMaximizedWindowPerf(ctx context.Context, s *testing.State) {
// Ensure display on to record ui performance correctly.
if err := power.TurnOnDisplay(ctx); err != nil {
s.Fatal("Failed to turn on display: ", err)
cr := s.FixtValue().(*chrome.Chrome)
tconn, err := cr.TestAPIConn(ctx)
if err != nil {
s.Fatal("Failed to connect to test API: ", err)
cleanup, err := ash.EnsureTabletModeEnabled(ctx, tconn, false)
if err != nil {
s.Fatal("Failed to ensure in clamshell mode: ", err)
defer cleanup(ctx)
// We are only dragging one window, but have some background windows as occlusion changes can impact performance.
const numWindows = 5
if err := ash.CreateWindows(ctx, tconn, cr, ui.PerftestURL, numWindows); err != nil {
s.Fatal("Failed to open browser windows: ", err)
info, err := display.GetPrimaryInfo(ctx, tconn)
if err != nil {
s.Fatal("Failed to get the internal display info: ", err)
width := info.WorkArea.Width
height := info.WorkArea.Height
if err := ash.ForEachWindow(ctx, tconn, func(w *ash.Window) error {
if err := ash.SetWindowStateAndWait(ctx, tconn, w.ID, ash.WindowStateMaximized); err != nil {
return errors.Wrapf(err, "failed to maximize window %d", w.ID)
return nil
}); err != nil {
s.Fatal("Failed to setup windows: ", err)
// Get the first window.
maximizedWindow, err := ash.FindWindow(ctx, tconn, func(w *ash.Window) bool {
return true
if err != nil {
s.Fatal("Failed to obtain the first window: ", err)
if maximizedWindow.State != ash.WindowStateMaximized {
s.Fatalf("The first window %d is not maximized (state %q)", maximizedWindow.ID, maximizedWindow.State)
if !maximizedWindow.IsActive {
s.Fatalf("The first window %d is not active", maximizedWindow.ID)
// Start the drag in the middle of the caption. Drag down to unmaximize, then circle around to trigger some
// occlusion changes. Finally, drag back to the top to maximize the window again.
points := []coords.Point{
// Caption center.
coords.NewPoint(maximizedWindow.BoundsInRoot.Width/2, 5),
// Points in some select parts of the display (diamond shape).
coords.NewPoint(10, height/2),
coords.NewPoint(width/2, height-10),
coords.NewPoint(width-10, height/2),
// Return to the caption center, this will trigger a remaximize animation.
points = append(points, points[0])
pv := perfutil.RunMultiple(ctx, s, cr, perfutil.RunAndWaitAll(tconn, func(ctx context.Context) error {
// Move the mouse to caption and press down.
if err := mouse.Move(ctx, tconn, points[0], 10*time.Millisecond); err != nil {
return errors.Wrap(err, "failed to move to caption")
if err := mouse.Press(ctx, tconn, mouse.LeftButton); err != nil {
return errors.Wrap(err, "failed to press the button")
// Drag the window around.
const dragTime = 500 * time.Millisecond
for _, point := range points {
if err := mouse.Move(ctx, tconn, point, dragTime); err != nil {
return errors.Wrap(err, "failed to drag")
// Needs to wait a bit before releasing the mouse, otherwise the window
// may not get back to be maximized. See
if err := testing.Sleep(ctx, time.Second); err != nil {
return errors.Wrap(err, "failed to wait")
// Release the window. It is near the top of the screen so it should snap to maximize.
if err := mouse.Release(ctx, tconn, mouse.LeftButton); err != nil {
return errors.Wrap(err, "failed to release the button")
// The window animates when snapping to maximize. Wait for it to finish animating before ending.
if err := ash.WaitWindowFinishAnimating(ctx, tconn, maximizedWindow.ID); err != nil {
return errors.Wrap(err, "failed to wait for top window animation")
// Validity check to ensure the window is maximized at the end. Otherwise, the test results are not very
// useful.
windows, err := ash.GetAllWindows(ctx, tconn)
if err != nil {
return errors.Wrap(err, "failed to obtain the window list")
if windows[0].State != ash.WindowStateMaximized {
return errors.New("window is not maximized")
return nil
if err := pv.Save(ctx, s.OutDir()); err != nil {
s.Error("Failed saving perf data: ", err)