Do not show auto-hidden shelf when dragging a window

ash/wm/workspace_controller_unittest.cc

 // Copyright 2013 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_controller.h"
 
 #include <map>
 
 #include "ash/ash_switches.h"
 #include "ash/root_window_controller.h"
@@ skipping 1262 matching lines @@
 TEST_P(WorkspaceControllerTestDragging, DragWindowOverlapShelf) {
   aura::test::TestWindowDelegate delegate;
   delegate.set_window_component(HTCAPTION);
   scoped_ptr<Window> w1(aura::test::CreateTestWindowWithDelegate(
       &delegate, ui::wm::WINDOW_TYPE_NORMAL, gfx::Rect(5, 5, 100, 50), NULL));
   ParentWindowInPrimaryRootWindow(w1.get());
 
   ShelfLayoutManager* shelf = shelf_layout_manager();
   shelf->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_NEVER);
 
-  // Drag near the shelf
+  // Drag near the shelf.
   aura::test::EventGenerator generator(
       Shell::GetPrimaryRootWindow(), gfx::Point());
   generator.MoveMouseTo(10, 10);
   generator.PressLeftButton();
   generator.MoveMouseTo(100, shelf->GetIdealBounds().y() - 70);
 
   // Shelf should not be in overlapped state.
   EXPECT_FALSE(GetWindowOverlapsShelf());
 
   generator.MoveMouseTo(100, shelf->GetIdealBounds().y() - 20);
 
   // Shelf should detect overlap. Overlap state stays after mouse is released.
   EXPECT_TRUE(GetWindowOverlapsShelf());
   generator.ReleaseLeftButton();
   EXPECT_TRUE(GetWindowOverlapsShelf());
 }
 
+// Verifies that when dragging a window autohidden shelf stays hidden during
+// and after the drag.
+TEST_P(WorkspaceControllerTestDragging, DragWindowKeepsShelfAutohidden) {
+  aura::test::TestWindowDelegate delegate;
+  delegate.set_window_component(HTCAPTION);
+  scoped_ptr<Window> w1(aura::test::CreateTestWindowWithDelegate(
+      &delegate, ui::wm::WINDOW_TYPE_NORMAL, gfx::Rect(5, 5, 100, 50), NULL));
+  ParentWindowInPrimaryRootWindow(w1.get());
+
+  ShelfLayoutManager* shelf = shelf_layout_manager();
+  shelf->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS);
+  EXPECT_EQ(SHELF_AUTO_HIDE_HIDDEN, shelf->auto_hide_state());
+
+  // Drag very little.
+  aura::test::EventGenerator generator(
+      Shell::GetPrimaryRootWindow(), gfx::Point());
+  generator.MoveMouseTo(10, 10);
+  generator.PressLeftButton();
+  generator.MoveMouseTo(12, 12);
+
+  // Shelf should be hidden during and after the drag.
+  EXPECT_EQ(SHELF_AUTO_HIDE_HIDDEN, shelf->auto_hide_state());
+  generator.ReleaseLeftButton();
+  EXPECT_EQ(SHELF_AUTO_HIDE_HIDDEN, shelf->auto_hide_state());
+}
+
 INSTANTIATE_TEST_CASE_P(DockedOrNot, WorkspaceControllerTestDragging,
                         ::testing::Bool());
 
 // Verifies that events are targeted properly just outside the window edges.
 TEST_F(WorkspaceControllerTest, WindowEdgeHitTest) {
   aura::test::TestWindowDelegate d_first, d_second;
   scoped_ptr<Window> first(aura::test::CreateTestWindowWithDelegate(&d_first,
       123, gfx::Rect(20, 10, 100, 50), NULL));
   ParentWindowInPrimaryRootWindow(first.get());
   first->Show();
@@ skipping 42 matching lines @@
     // Apply a transform on |second|. After the transform is applied, the window
     // should no longer be targetted.
     gfx::Transform transform;
     transform.Translate(70, 40);
     second->SetTransform(transform);
   }
 }
 
 }  // namespace internal
 }  // namespace ash