Improving window auto management between workspaces

ash/wm/workspace/workspace_manager2_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/wm/workspace/workspace_manager2.h"
 
 #include "ash/ash_switches.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
@@ skipping 1089 matching lines @@
   w2->Show();
   wm::ActivateWindow(w2.get());
   EXPECT_EQ(w1->parent(), w2->parent());
   ASSERT_EQ("0 M2 active=1", StateString());
 
   // Activate |w1|, should result in dropping |w2| to the desktop.
   wm::ActivateWindow(w1.get());
   ASSERT_EQ("1 M1 active=1", StateString());
 }
 
+// Test the basic auto placement of one and or two windows in a "simulated
+// session" of sequential window operations.
+TEST_F(WorkspaceManager2Test, BasicAutoPlacing) {
+  // Test 1: In case there is no manageable window, no window should shift.
+
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  gfx::Rect desktop_area = window1->parent()->bounds();
+
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  // Trigger the auto window placement function by making it visible.
+  // Note that the bounds are getting changed while it is invisible.
+  window2->Hide();
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+  window2->Show();
+
+  // Check the initial position of the windows is unchanged.
+  EXPECT_EQ("16,32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("32,48 256x512", window2->bounds().ToString());
+
+  // Remove the second window and make sure that the first window
+  // does NOT get centered.
+  window2.reset();
+  EXPECT_EQ("16,32 640x320", window1->bounds().ToString());
+
+  // Test 2: Set up two managed windows and check their auto positioning.
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  scoped_ptr<aura::Window> window3(
+      aura::test::CreateTestWindowWithId(2, NULL));
+  ash::wm::SetWindowPositionManaged(window3.get(), true);
+  // To avoid any auto window manager changes due to SetBounds, the window
+  // gets first hidden and then shown again.
+  window3->Hide();
+  window3->SetBounds(gfx::Rect(32, 48, 256, 512));
+  window3->Show();
+  // |window1| should be flush right and |window3| flush left.
+  EXPECT_EQ("0,32 640x320", window1->bounds().ToString());
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window3->bounds().width()) +
+            ",48 256x512", window3->bounds().ToString());
+
+  // After removing |window3|, |window1| should be centered again.
+  window3.reset();
+  EXPECT_EQ(
+      base::IntToString(
+          (desktop_area.width() - window1->bounds().width()) / 2) +
+      ",32 640x320", window1->bounds().ToString());
+
+  // Test 3: Set up a manageable and a non manageable window and check
+  // positioning.
+  scoped_ptr<aura::Window> window4(
+      aura::test::CreateTestWindowWithId(3, NULL));
+  // To avoid any auto window manager changes due to SetBounds, the window
+  // gets first hidden and then shown again.
+  window1->Hide();
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  window4->SetBounds(gfx::Rect(32, 48, 256, 512));
+  window1->Show();
+  // |window1| should be centered and |window4| untouched.
+  EXPECT_EQ(
+      base::IntToString(
+          (desktop_area.width() - window1->bounds().width()) / 2) +
+      ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("32,48 256x512", window4->bounds().ToString());
+
+  // Test4: A single manageable window should get centered.
+  window4.reset();
+  ash::wm::SetUserHasChangedWindowPositionOrSize(window1.get(), false);
+  // Trigger the auto window placement function by showing (and hiding) it.
+  window1->Hide();
+  window1->Show();
+  // |window1| should be centered.
+  EXPECT_EQ(
+      base::IntToString(
+          (desktop_area.width() - window1->bounds().width()) / 2) +
+      ",32 640x320", window1->bounds().ToString());
+}
+
+// Test the proper usage of user window movement interaction.
+TEST_F(WorkspaceManager2Test, TestUserMovedWindowRepositioning) {
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  gfx::Rect desktop_area = window1->parent()->bounds();
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+  window1->Hide();
+  window2->Hide();
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  ash::wm::SetWindowPositionManaged(window2.get(), true);
+  EXPECT_FALSE(ash::wm::HasUserChangedWindowPositionOrSize(window1.get()));
+  EXPECT_FALSE(ash::wm::HasUserChangedWindowPositionOrSize(window2.get()));
+
+  // Check that the current location gets preserved if the user has
+  // positioned it previously.
+  ash::wm::SetUserHasChangedWindowPositionOrSize(window1.get(), true);
+  window1->Show();
+  EXPECT_EQ("16,32 640x320", window1->bounds().ToString());
+  // Flag should be still set.
+  EXPECT_TRUE(ash::wm::HasUserChangedWindowPositionOrSize(window1.get()));
+  EXPECT_FALSE(ash::wm::HasUserChangedWindowPositionOrSize(window2.get()));
+
+  // Turn on the second window and make sure that both windows are now
+  // positionable again (user movement cleared).
+  window2->Show();
+
+  // |window1| should be flush right and |window3| flush left.
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("0,48 256x512", window2->bounds().ToString());
+  // FLag should now be reset.
+  EXPECT_FALSE(ash::wm::HasUserChangedWindowPositionOrSize(window1.get()));
+  EXPECT_FALSE(ash::wm::HasUserChangedWindowPositionOrSize(window1.get()));
+
+  // Going back to one shown window should keep the state.
+  ash::wm::SetUserHasChangedWindowPositionOrSize(window1.get(), true);
+  window2->Hide();
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_TRUE(ash::wm::HasUserChangedWindowPositionOrSize(window1.get()));
+}
+
+// Test that a window from normal to minimize will repos the remaining.
+TEST_F(WorkspaceManager2Test, ToMinimizeRepositionsRemaining) {
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  gfx::Rect desktop_area = window1->parent()->bounds();
+
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  ash::wm::SetWindowPositionManaged(window2.get(), true);
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+
+  ash::wm::MinimizeWindow(window1.get());
+
+  // |window2| should be centered now.
+  EXPECT_TRUE(window2->IsVisible());
+  EXPECT_TRUE(ash::wm::IsWindowNormal(window2.get()));
+  EXPECT_EQ(base::IntToString(
+                (desktop_area.width() - window2->bounds().width()) / 2) +
+            ",48 256x512", window2->bounds().ToString());
+
+  ash::wm::RestoreWindow(window1.get());
+  // |window1| should be flush right and |window3| flush left.
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("0,48 256x512", window2->bounds().ToString());
+}
+
+// Test that minimizing an initially maximized window will repos the remaining.
+TEST_F(WorkspaceManager2Test, MaxToMinRepositionsRemaining) {
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  gfx::Rect desktop_area = window1->parent()->bounds();
+
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  ash::wm::SetWindowPositionManaged(window2.get(), true);
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+
+  ash::wm::MaximizeWindow(window1.get());
+  ash::wm::MinimizeWindow(window1.get());
+
+  // |window2| should be centered now.
+  EXPECT_TRUE(window2->IsVisible());
+  EXPECT_TRUE(ash::wm::IsWindowNormal(window2.get()));
+  EXPECT_EQ(base::IntToString(
+                (desktop_area.width() - window2->bounds().width()) / 2) +
+            ",48 256x512", window2->bounds().ToString());
+}
+
+// Test that nomral, maximize, minimizing will repos the remaining.
+TEST_F(WorkspaceManager2Test, NormToMaxToMinRepositionsRemaining) {
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  gfx::Rect desktop_area = window1->parent()->bounds();
+
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  ash::wm::SetWindowPositionManaged(window2.get(), true);
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+
+  // Trigger the auto window placement function by showing (and hiding) it.
+  window1->Hide();
+  window1->Show();
+
+  // |window1| should be flush right and |window3| flush left.
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("0,48 256x512", window2->bounds().ToString());
+
+  ash::wm::MaximizeWindow(window1.get());
+  ash::wm::MinimizeWindow(window1.get());
+
+  // |window2| should be centered now.
+  EXPECT_TRUE(window2->IsVisible());
+  EXPECT_TRUE(ash::wm::IsWindowNormal(window2.get()));
+  EXPECT_EQ(base::IntToString(
+                (desktop_area.width() - window2->bounds().width()) / 2) +
+            ",48 256x512", window2->bounds().ToString());
+}
+
+// Test that nomral, maximize, normal will repos the remaining.
+TEST_F(WorkspaceManager2Test, NormToMaxToNormRepositionsRemaining) {
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  gfx::Rect desktop_area = window1->parent()->bounds();
+
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  ash::wm::SetWindowPositionManaged(window2.get(), true);
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+
+  // Trigger the auto window placement function by showing (and hiding) it.
+  window1->Hide();
+  window1->Show();
+
+  // |window1| should be flush right and |window3| flush left.
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("0,48 256x512", window2->bounds().ToString());
+
+  ash::wm::MaximizeWindow(window1.get());
+  ash::wm::RestoreWindow(window1.get());
+
+  // |window1| should be flush right and |window2| flush left.
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("0,48 256x512", window2->bounds().ToString());
+}
+
+// Test that animations are triggered.
+TEST_F(WorkspaceManager2Test, AnimatedNormToMaxToNormRepositionsRemaining) {
+  ui::LayerAnimator::set_disable_animations_for_test(false);
+  scoped_ptr<aura::Window> window1(
+      aura::test::CreateTestWindowWithId(0, NULL));
+  window1->Hide();
+  window1->SetBounds(gfx::Rect(16, 32, 640, 320));
+  gfx::Rect desktop_area = window1->parent()->bounds();
+  scoped_ptr<aura::Window> window2(
+      aura::test::CreateTestWindowWithId(1, NULL));
+  window2->Hide();
+  window2->SetBounds(gfx::Rect(32, 48, 256, 512));
+
+  ash::wm::SetWindowPositionManaged(window1.get(), true);
+  ash::wm::SetWindowPositionManaged(window2.get(), true);
+  // Make sure nothing is animating.
+  window1->layer()->GetAnimator()->StopAnimating();
+  window2->layer()->GetAnimator()->StopAnimating();
+  window2->Show();
+
+  // The second window should now animate.
+  EXPECT_FALSE(window1->layer()->GetAnimator()->is_animating());
+  EXPECT_TRUE(window2->layer()->GetAnimator()->is_animating());
+  window2->layer()->GetAnimator()->StopAnimating();
+
+  window1->Show();
+  EXPECT_TRUE(window1->layer()->GetAnimator()->is_animating());
+  EXPECT_TRUE(window2->layer()->GetAnimator()->is_animating());
+
+  window1->layer()->GetAnimator()->StopAnimating();
+  window2->layer()->GetAnimator()->StopAnimating();
+  // |window1| should be flush right and |window2| flush left.
+  EXPECT_EQ(base::IntToString(
+                desktop_area.width() - window1->bounds().width()) +
+            ",32 640x320", window1->bounds().ToString());
+  EXPECT_EQ("0,48 256x512", window2->bounds().ToString());
+}
+
 }  // namespace internal
 }  // namespace ash