[views-mus] Support custom cursors.

services/ui/ws/drag_controller_unittest.cc

 // Copyright 2016 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 "services/ui/ws/drag_controller.h"
 
 #include <map>
 #include <memory>
 #include <queue>
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "services/ui/public/interfaces/cursor/cursor.mojom.h"
 #include "services/ui/ws/drag_source.h"
 #include "services/ui/ws/drag_target_connection.h"
 #include "services/ui/ws/ids.h"
 #include "services/ui/ws/server_window.h"
 #include "services/ui/ws/test_server_window_delegate.h"
 #include "services/ui/ws/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/cursor/cursor.h"
 #include "ui/events/base_event_utils.h"
 
 namespace ui {
 namespace ws {
 
 enum class QueuedType { NONE, ENTER, OVER, LEAVE, DROP };
 
 class DragControllerTest;
 
 // All the classes to represent a window.
@@ skipping 124 matching lines @@
     window->PerformOnDragDropStart(
         std::unordered_map<std::string, std::vector<uint8_t>>());
     drag_operation_ = base::MakeUnique<DragController>(
         this, this, window->window(), window, MouseEvent::kMousePointerId,
         std::unordered_map<std::string, std::vector<uint8_t>>(),
         drag_operations);
 
     // It would be nice if we could just let the observer method fire, but it
     // fires during the constructor when we haven't assigned the unique_ptr
     // yet.
-    cursor_ = ui::mojom::CursorType(drag_operation_->current_cursor());
+    cursor_ = drag_operation_->current_cursor().cursor_type();
   }
 
   void DispatchDrag(DragTestWindow* window,
                     bool mouse_released,
                     uint32_t flags,
                     const gfx::Point& position) {
     ui::PointerEvent event(
         ui::MouseEvent(mouse_released ? ET_MOUSE_RELEASED : ET_MOUSE_PRESSED,
                        position, position, ui::EventTimeForNow(), flags, 0));
     drag_operation_->DispatchPointerEvent(event,
@@ skipping 21 matching lines @@
 
   DragController* drag_operation() const { return drag_operation_.get(); }
 
   const base::Optional<uint32_t>& drag_completed_action() {
     return drag_completed_action_;
   }
   const base::Optional<bool>& drag_completed_value() {
     return drag_completed_value_;
   }
 
-  ui::mojom::CursorType cursor() { return cursor_; }
+  ui::CursorType cursor_type() const { return cursor_; }
 
  private:
   // Overridden from testing::Test:
   void SetUp() override {
     testing::Test::SetUp();
 
     window_delegate_ = base::MakeUnique<TestServerWindowDelegate>();
     root_window_ =
         base::MakeUnique<ServerWindow>(window_delegate_.get(), WindowId(1, 2));
     window_delegate_->set_root_window(root_window_.get());
     root_window_->SetVisible(true);
   }
 
   void TearDown() override {
     drag_operation_.reset();
     root_window_.reset();
     window_delegate_.reset();
 
     DCHECK(server_window_by_id_.empty());
     DCHECK(connection_by_window_.empty());
 
     testing::Test::TearDown();
   }
 
   // Overridden from DragCursorUpdater:
   void OnDragCursorUpdated() override {
     if (drag_operation_)
-      cursor_ = ui::mojom::CursorType(drag_operation_->current_cursor());
+      cursor_ = drag_operation_->current_cursor().cursor_type();
   }
 
   // Overridden from DragControllerSource:
   void OnDragMoved(const gfx::Point& location) override {}
 
   void OnDragCompleted(bool success, uint32_t action_taken) override {
     drag_completed_action_ = action_taken;
     drag_completed_value_ = success;
   }
 
   ServerWindow* GetWindowById(const WindowId& id) override {
     auto it = server_window_by_id_.find(id);
     if (it == server_window_by_id_.end())
       return nullptr;
     return it->second;
   }
 
   DragTargetConnection* GetDragTargetForWindow(
       const ServerWindow* window) override {
     auto it = connection_by_window_.find(const_cast<ServerWindow*>(window));
     if (it == connection_by_window_.end())
       return nullptr;
     return it->second;
   }
 
   int window_id_ = 3;
 
-  ui::mojom::CursorType cursor_;
+  ui::CursorType cursor_;
 
   std::map<WindowId, ServerWindow*> server_window_by_id_;
   std::map<ServerWindow*, DragTargetConnection*> connection_by_window_;
 
   std::unique_ptr<TestServerWindowDelegate> window_delegate_;
   std::unique_ptr<ServerWindow> root_window_;
 
   std::unique_ptr<DragController> drag_operation_;
 
   base::Optional<uint32_t> drag_completed_action_;
   base::Optional<bool> drag_completed_value_;
 };
 
 DragTestWindow::~DragTestWindow() {
   parent_->OnTestWindowDestroyed(this);
 }
 
 TEST_F(DragControllerTest, SimpleDragDrop) {
   std::unique_ptr<DragTestWindow> window = BuildWindow();
   StartDragOperation(window.get(), ui::mojom::kDropEffectMove);
 
-  EXPECT_EQ(ui::mojom::CursorType::kNoDrop, cursor());
+  EXPECT_EQ(ui::CursorType::kNoDrop, cursor_type());
 
   DispatchDrag(window.get(), false, ui::EF_LEFT_MOUSE_BUTTON, gfx::Point(1, 1));
   EXPECT_EQ(QueuedType::ENTER, window->queue_response_type());
   window->Respond(true);
 
   // (Even though we're doing a move, the cursor name is COPY.)
-  EXPECT_EQ(ui::mojom::CursorType::kCopy, cursor());
+  EXPECT_EQ(ui::CursorType::kCopy, cursor_type());
 
   DispatchDrag(window.get(), false, ui::EF_LEFT_MOUSE_BUTTON, gfx::Point(2, 2));
   EXPECT_EQ(QueuedType::OVER, window->queue_response_type());
   window->Respond(true);
 
   DispatchDrag(window.get(), true, 0, gfx::Point(2, 2));
   EXPECT_EQ(QueuedType::DROP, window->queue_response_type());
   window->Respond(true);
 
   EXPECT_EQ(ui::mojom::kDropEffectMove,
@@ skipping 228 matching lines @@
   EXPECT_EQ(nullptr, api.GetCurrentTarget());
 
   // But a target window closing out from under us doesn't fail the drag.
   EXPECT_FALSE(drag_completed_value().has_value());
 }
 
 TEST_F(DragControllerTest, TargetWindowClosedResetsCursor) {
   std::unique_ptr<DragTestWindow> window1 = BuildWindow();
   std::unique_ptr<DragTestWindow> window2 = BuildWindow();
   StartDragOperation(window1.get(), ui::mojom::kDropEffectMove);
-  EXPECT_EQ(ui::mojom::CursorType::kNoDrop, cursor());
+  EXPECT_EQ(ui::CursorType::kNoDrop, cursor_type());
 
   // Send some events to |window|.
   DispatchDrag(window2.get(), false, ui::EF_LEFT_MOUSE_BUTTON,
                gfx::Point(1, 1));
   EXPECT_EQ(QueuedType::ENTER, window2->queue_response_type());
   window2->Respond(true);
   DispatchDrag(window2.get(), false, ui::EF_LEFT_MOUSE_BUTTON,
                gfx::Point(1, 1));
   window2->Respond(true);
-  EXPECT_EQ(ui::mojom::CursorType::kCopy, cursor());
+  EXPECT_EQ(ui::CursorType::kCopy, cursor_type());
 
   // Force the destruction of |window.window|.
   window2.reset();
 
   // The cursor no loner indicates that it can drop on |window2|.
-  EXPECT_EQ(ui::mojom::CursorType::kNoDrop, cursor());
+  EXPECT_EQ(ui::CursorType::kNoDrop, cursor_type());
 }
 
 TEST_F(DragControllerTest, SourceWindowClosedWhileDrag) {
   std::unique_ptr<DragTestWindow> window1 = BuildWindow();
   std::unique_ptr<DragTestWindow> window2 = BuildWindow();
   StartDragOperation(window1.get(), ui::mojom::kDropEffectMove);
 
   test::DragControllerTestApi api(drag_operation());
 
   // Send some events to |windoww|.
@@ skipping 65 matching lines @@
   // Ignore events from pointer 5.
   DispatchDragWithPointer(window.get(), 5, false, ui::EF_LEFT_MOUSE_BUTTON,
                           gfx::Point(1, 1));
   ASSERT_EQ(0u, window->queue_size());
 }
 
 TEST_F(DragControllerTest, RejectingWindowHasProperCursor) {
   std::unique_ptr<DragTestWindow> window = BuildWindow();
   StartDragOperation(window.get(), ui::mojom::kDropEffectMove);
 
-  EXPECT_EQ(ui::mojom::CursorType::kNoDrop, cursor());
+  EXPECT_EQ(ui::CursorType::kNoDrop, cursor_type());
 
   DispatchDrag(window.get(), false, ui::EF_LEFT_MOUSE_BUTTON, gfx::Point(1, 1));
   EXPECT_EQ(QueuedType::ENTER, window->queue_response_type());
   window->Respond(true);
 
-  EXPECT_EQ(ui::mojom::CursorType::kCopy, cursor());
+  EXPECT_EQ(ui::CursorType::kCopy, cursor_type());
 
   DispatchDrag(window.get(), false, ui::EF_LEFT_MOUSE_BUTTON, gfx::Point(2, 2));
   EXPECT_EQ(QueuedType::OVER, window->queue_response_type());
 
   // At this point, we respond with no available drag actions at this pixel.
   window->Respond(false);
-  EXPECT_EQ(ui::mojom::CursorType::kNoDrop, cursor());
+  EXPECT_EQ(ui::CursorType::kNoDrop, cursor_type());
 }
 
 TEST_F(DragControllerTest, ResopnseFromOtherWindowDoesntChangeCursor) {
   std::unique_ptr<DragTestWindow> window1 = BuildWindow();
   std::unique_ptr<DragTestWindow> window2 = BuildWindow();
   StartDragOperation(window1.get(), ui::mojom::kDropEffectMove);
 
   // Send some events to |window2|.
   DispatchDrag(window2.get(), false, ui::EF_LEFT_MOUSE_BUTTON,
                gfx::Point(1, 1));
   EXPECT_EQ(QueuedType::ENTER, window2->queue_response_type());
   DispatchDrag(window2.get(), false, ui::EF_LEFT_MOUSE_BUTTON,
                gfx::Point(1, 1));
 
-  EXPECT_EQ(ui::mojom::CursorType::kNoDrop, cursor());
+  EXPECT_EQ(ui::CursorType::kNoDrop, cursor_type());
 
   // Now enter |window1|, and respond.
   DispatchDrag(window1.get(), false, ui::EF_LEFT_MOUSE_BUTTON,
                gfx::Point(5, 5));
   EXPECT_EQ(QueuedType::ENTER, window1->queue_response_type());
   window1->Respond(true);
 
-  EXPECT_EQ(ui::mojom::CursorType::kCopy, cursor());
+  EXPECT_EQ(ui::CursorType::kCopy, cursor_type());
 
   // Window 2 responding negatively to its queued messages shouldn't change the
   // cursor.
   window2->Respond(false);
 
-  EXPECT_EQ(ui::mojom::CursorType::kCopy, cursor());
+  EXPECT_EQ(ui::CursorType::kCopy, cursor_type());
 }
 
 }  // namespace ws
 }  // namespace ui