Fully support the autohide shelf option for touch UI on Windows.

ash/shelf/shelf_layout_manager_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/shelf/shelf_layout_manager.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/ash_switches.h"
 #include "ash/display/display_manager.h"
@@ skipping 1475 matching lines @@
   EXPECT_EQ(display.bounds().x(), shelf_bounds.x());
   EXPECT_EQ(display.bounds().width(), shelf_bounds.width());
   shelf->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS);
   display = screen->GetDisplayNearestWindow(Shell::GetPrimaryRootWindow());
   EXPECT_EQ(ShelfLayoutManager::kAutoHideSize,
       display.GetWorkAreaInsets().top());
   EXPECT_EQ(ShelfLayoutManager::kAutoHideSize,
             display.work_area().y() - display.bounds().y());
 }
 
+TEST_F(ShelfLayoutManagerTest, GestureEdgeSwipe) {
+  ShelfLayoutManager* shelf = GetShelfLayoutManager();
+  shelf->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_NEVER);
+  views::Widget* widget = new views::Widget;
+  views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
+  params.bounds = gfx::Rect(0, 0, 200, 200);
+  params.context = CurrentContext();
+  widget->Init(params);
+  widget->Show();
+  widget->Maximize();
+
+  aura::Window* window = widget->GetNativeWindow();
+  shelf->LayoutShelf();
+
+  gfx::Rect shelf_shown = GetShelfWidget()->GetWindowBoundsInScreen();
+  gfx::Rect bounds_shelf = window->bounds();
+  EXPECT_EQ(SHELF_VISIBLE, shelf->visibility_state());
+
+  shelf->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS);
+  shelf->LayoutShelf();
+  EXPECT_EQ(SHELF_AUTO_HIDE_HIDDEN, shelf->auto_hide_state());
+
+  aura::test::EventGenerator generator(Shell::GetPrimaryRootWindow());
+  generator.GestureEdgeSwipe();
+
+  EXPECT_EQ(SHELF_VISIBLE, shelf->visibility_state());
+  EXPECT_EQ(SHELF_AUTO_HIDE_BEHAVIOR_NEVER, shelf->auto_hide_behavior());
+
+  widget->SetFullscreen(true);
+  wm::GetWindowState(window)->set_hide_shelf_when_fullscreen(false);
+  shelf->UpdateVisibilityState();
+
+  gfx::Rect bounds_fullscreen = window->bounds();
+  EXPECT_TRUE(widget->IsFullscreen());
+  EXPECT_EQ(SHELF_AUTO_HIDE_HIDDEN, shelf->auto_hide_state());
+
+  generator.GestureEdgeSwipe();
+  EXPECT_EQ(SHELF_VISIBLE, shelf->visibility_state());
+  EXPECT_EQ(SHELF_AUTO_HIDE_BEHAVIOR_NEVER, shelf->auto_hide_behavior());
+  EXPECT_FALSE(widget->IsFullscreen());
+}
+
 #if defined(OS_WIN)
 // RootWindow and Display can't resize on Windows Ash. http://crbug.com/165962
 #define MAYBE_GestureDrag DISABLED_GestureDrag
 #else
 #define MAYBE_GestureDrag GestureDrag
 #endif
 
 TEST_F(ShelfLayoutManagerTest, MAYBE_GestureDrag) {
   // Slop is an implementation detail of gesture recognition, and complicates
   // these tests. Ignore it.
@@ skipping 414 matching lines @@
   shelf->SetAlignment(SHELF_ALIGNMENT_LEFT);
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
   generator.ClickLeftButton();
   EXPECT_TRUE(status_area_widget->IsMessageBubbleShown());
   generator.ClickLeftButton();
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
 }
 
 }  // namespace internal
 }  // namespace ash