ash/common/shelf/shelf_window_watcher_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/common/shelf/shelf_window_watcher.h"

#include "ash/common/ash_switches.h"
#include "ash/common/shelf/shelf_item_types.h"
#include "ash/common/shelf/shelf_model.h"
#include "ash/common/shell_window_ids.h"
#include "ash/common/wm/window_resizer.h"
#include "ash/common/wm/window_state.h"
#include "ash/common/wm_lookup.h"
#include "ash/common/wm_shell.h"
#include "ash/common/wm_window.h"
#include "ash/test/ash_test_base.h"
#include "ui/base/hit_test.h"
#include "ui/views/widget/widget.h"

namespace ash {

class ShelfWindowWatcherTest : public test::AshTestBase {
 public:
  ShelfWindowWatcherTest() : model_(nullptr) {}
  ~ShelfWindowWatcherTest() override {}

  void SetUp() override {
    test::AshTestBase::SetUp();
    model_ = WmShell::Get()->shelf_model();
  }

  void TearDown() override {
    model_ = nullptr;
    test::AshTestBase::TearDown();
  }

  ShelfID CreateShelfItem(WmWindow* window) {
    ShelfID id = model_->next_id();
    ShelfItemDetails item_details;
    item_details.type = TYPE_PLATFORM_APP;
    window->SetShelfItemDetails(item_details);
    return id;
  }

 protected:
  ShelfModel* model_;

 private:
  DISALLOW_COPY_AND_ASSIGN(ShelfWindowWatcherTest);
};

// Ensure shelf items are added and removed as windows are opened and closed.
TEST_F(ShelfWindowWatcherTest, OpenAndClose) {
  // ShelfModel only has an APP_LIST item.
  EXPECT_EQ(1, model_->item_count());

  // Adding windows with ShelfItemDetails properties adds shelf items.
  std::unique_ptr<views::Widget> widget1 =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  CreateShelfItem(WmLookup::Get()->GetWindowForWidget(widget1.get()));
  EXPECT_EQ(2, model_->item_count());
  std::unique_ptr<views::Widget> widget2 =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  CreateShelfItem(WmLookup::Get()->GetWindowForWidget(widget2.get()));
  EXPECT_EQ(3, model_->item_count());

  // Each ShelfItem is removed when the associated window is destroyed.
  widget1.reset();
  EXPECT_EQ(2, model_->item_count());
  widget2.reset();
  EXPECT_EQ(1, model_->item_count());
}

TEST_F(ShelfWindowWatcherTest, CreateAndRemoveShelfItemDetails) {
  // ShelfModel only has an APP_LIST item.
  EXPECT_EQ(1, model_->item_count());

  // Creating windows without ShelfItemDetails does not add items.
  std::unique_ptr<views::Widget> widget1 =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window1 = WmLookup::Get()->GetWindowForWidget(widget1.get());
  std::unique_ptr<views::Widget> widget2 =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window2 = WmLookup::Get()->GetWindowForWidget(widget2.get());
  EXPECT_EQ(1, model_->item_count());

  // Create a ShelfItem for the first window.
  ShelfID id_w1 = CreateShelfItem(window1);
  EXPECT_EQ(2, model_->item_count());

  int index_w1 = model_->ItemIndexByID(id_w1);
  EXPECT_EQ(STATUS_RUNNING, model_->items()[index_w1].status);

  // Create a ShelfItem for the second window.
  ShelfID id_w2 = CreateShelfItem(window2);
  EXPECT_EQ(3, model_->item_count());

  int index_w2 = model_->ItemIndexByID(id_w2);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index_w2].status);

  // ShelfItem is removed when its window property is cleared.
  window1->ClearShelfItemDetails();
  EXPECT_EQ(2, model_->item_count());
  window2->ClearShelfItemDetails();
  EXPECT_EQ(1, model_->item_count());
  // Clearing twice doesn't do anything.
  window2->ClearShelfItemDetails();
  EXPECT_EQ(1, model_->item_count());
}

TEST_F(ShelfWindowWatcherTest, ActivateWindow) {
  // ShelfModel only have APP_LIST item.
  EXPECT_EQ(1, model_->item_count());
  std::unique_ptr<views::Widget> widget1 =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window1 = WmLookup::Get()->GetWindowForWidget(widget1.get());
  std::unique_ptr<views::Widget> widget2 =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window2 = WmLookup::Get()->GetWindowForWidget(widget2.get());

  // Create a ShelfItem for the first window.
  ShelfID id_w1 = CreateShelfItem(window1);
  EXPECT_EQ(2, model_->item_count());
  int index_w1 = model_->ItemIndexByID(id_w1);
  EXPECT_EQ(STATUS_RUNNING, model_->items()[index_w1].status);

  // Create a ShelfItem for the second window.
  ShelfID id_w2 = CreateShelfItem(window2);
  EXPECT_EQ(3, model_->item_count());
  int index_w2 = model_->ItemIndexByID(id_w2);
  EXPECT_EQ(STATUS_RUNNING, model_->items()[index_w1].status);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index_w2].status);

  // The ShelfItem for the first window is active when the window is activated.
  widget1->Activate();
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index_w1].status);
  EXPECT_EQ(STATUS_RUNNING, model_->items()[index_w2].status);

  // The ShelfItem for the second window is active when the window is activated.
  widget2->Activate();
  EXPECT_EQ(STATUS_RUNNING, model_->items()[index_w1].status);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index_w2].status);
}

TEST_F(ShelfWindowWatcherTest, UpdateWindowProperty) {
  // ShelfModel only has an APP_LIST item.
  EXPECT_EQ(1, model_->item_count());

  std::unique_ptr<views::Widget> widget =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window = WmLookup::Get()->GetWindowForWidget(widget.get());

  // Create a ShelfItem for |window|.
  ShelfID id = CreateShelfItem(window);
  EXPECT_EQ(2, model_->item_count());

  int index = model_->ItemIndexByID(id);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index].status);

  // Update ShelfItem for |window|.
  ShelfItemDetails details;
  details.type = TYPE_PLATFORM_APP;

  window->SetShelfItemDetails(details);
  // No new item is created after updating a launcher item.
  EXPECT_EQ(2, model_->item_count());
  // index and id are not changed after updating a launcher item.
  EXPECT_EQ(index, model_->ItemIndexByID(id));
  EXPECT_EQ(id, model_->items()[index].id);
}

TEST_F(ShelfWindowWatcherTest, MaximizeAndRestoreWindow) {
  // ShelfModel only has an APP_LIST item.
  EXPECT_EQ(1, model_->item_count());

  std::unique_ptr<views::Widget> widget =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window = WmLookup::Get()->GetWindowForWidget(widget.get());
  wm::WindowState* window_state = window->GetWindowState();

  // Create a ShelfItem for |window|.
  ShelfID id = CreateShelfItem(window);
  EXPECT_EQ(2, model_->item_count());

  int index = model_->ItemIndexByID(id);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index].status);

  // Maximize window |window|.
  EXPECT_FALSE(window_state->IsMaximized());
  window_state->Maximize();
  EXPECT_TRUE(window_state->IsMaximized());
  // No new item is created after maximizing a window |window|.
  EXPECT_EQ(2, model_->item_count());
  // index and id are not changed after maximizing a window |window|.
  EXPECT_EQ(index, model_->ItemIndexByID(id));
  EXPECT_EQ(id, model_->items()[index].id);

  // Restore window |window|.
  window_state->Restore();
  EXPECT_FALSE(window_state->IsMaximized());
  // No new item is created after restoring a window |window|.
  EXPECT_EQ(2, model_->item_count());
  // Index and id are not changed after maximizing a window |window|.
  EXPECT_EQ(index, model_->ItemIndexByID(id));
  EXPECT_EQ(id, model_->items()[index].id);
}

// Check that an item is maintained when its associated Window is docked.
TEST_F(ShelfWindowWatcherTest, DockWindow) {
  // ShelfModel only has an APP_LIST item.
  EXPECT_EQ(1, model_->item_count());

  std::unique_ptr<views::Widget> widget =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window = WmLookup::Get()->GetWindowForWidget(widget.get());

  // Create a ShelfItem for |window|.
  ShelfID id = CreateShelfItem(window);
  EXPECT_EQ(2, model_->item_count());

  int index = model_->ItemIndexByID(id);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index].status);

  WmWindow* root_window = window->GetRootWindow();
  WmWindow* default_container =
      root_window->GetChildByShellWindowId(kShellWindowId_DefaultContainer);
  EXPECT_EQ(default_container, window->GetParent());

  WmWindow* docked_container =
      root_window->GetChildByShellWindowId(kShellWindowId_DockedContainer);

  // Check |window|'s item is not removed when it is re-parented to the dock.
  docked_container->AddChild(window);
  EXPECT_EQ(docked_container, window->GetParent());
  EXPECT_EQ(2, model_->item_count());

  // The shelf item is removed when the window is closed, even if it is in the
  // docked container at the time.
  widget.reset();
  EXPECT_EQ(1, model_->item_count());
}

// Check |window|'s item is not changed during the dragging.
// TODO(simonhong): Add a test for removing a Window during the dragging.
TEST_F(ShelfWindowWatcherTest, DragWindow) {
  // ShelfModel only has an APP_LIST item.
  EXPECT_EQ(1, model_->item_count());

  std::unique_ptr<views::Widget> widget =
      CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
  WmWindow* window = WmLookup::Get()->GetWindowForWidget(widget.get());

  // Create a ShelfItem for |window|.
  ShelfID id = CreateShelfItem(window);
  EXPECT_EQ(2, model_->item_count());

  int index = model_->ItemIndexByID(id);
  EXPECT_EQ(STATUS_ACTIVE, model_->items()[index].status);

  // Simulate dragging of |window| and check its item is not changed.
  std::unique_ptr<WindowResizer> resizer(CreateWindowResizer(
      window, gfx::Point(), HTCAPTION, aura::client::WINDOW_MOVE_SOURCE_MOUSE));
  ASSERT_TRUE(resizer.get());
  resizer->Drag(gfx::Point(50, 50), 0);
  resizer->CompleteDrag();

  // Index and id are not changed after dragging a |window|.
  EXPECT_EQ(index, model_->ItemIndexByID(id));
  EXPECT_EQ(id, model_->items()[index].id);
}

}  // namespace ash