Moves WorkspaceEventHandler to ash/common

ash/mus/move_event_handler.cc

 // Copyright 2015 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/mus/move_event_handler.h"
 
 #include "ash/mus/bridge/wm_window_mus.h"
+#include "ash/mus/bridge/workspace_event_handler_mus.h"
 #include "services/ui/public/cpp/window.h"
 #include "services/ui/public/cpp/window_manager_delegate.h"
 #include "services/ui/public/cpp/window_property.h"
 #include "services/ui/public/interfaces/cursor.mojom.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
 #include "ui/events/event.h"
 
 MUS_DECLARE_WINDOW_PROPERTY_TYPE(ash::mus::MoveEventHandler*)
 
@@ skipping 85 matching lines @@
 
 void MoveEventHandler::Detach() {
   if (!root_window_)
     return;
 
   root_window_->RemoveObserver(this);
   root_window_->RemovePreTargetHandler(this);
   root_window_ = nullptr;
 }
 
+WorkspaceEventHandlerMus* MoveEventHandler::GetWorkspaceEventHandlerMus() {
+  if (!wm_window_->GetParent())
+    return nullptr;
+
+  return WorkspaceEventHandlerMus::Get(wm_window_->mus_window()->parent());
+}
+
 void MoveEventHandler::OnMouseEvent(ui::MouseEvent* event) {
   toplevel_window_event_handler_.OnMouseEvent(event, wm_window_);
   if (!toplevel_window_event_handler_.is_drag_in_progress() &&
       (event->type() == ui::ET_POINTER_MOVED ||
        event->type() == ui::ET_MOUSE_MOVED)) {
     const int hit_test_location =
         wm_window_->GetNonClientComponent(event->location());
     window_manager_client_->SetNonClientCursor(
         wm_window_->mus_window(), CursorForWindowComponent(hit_test_location));
   }
+
+  WorkspaceEventHandlerMus* workspace_event_handler =
+      GetWorkspaceEventHandlerMus();
+  if (workspace_event_handler)
+    workspace_event_handler->OnMouseEvent(event, wm_window_);
 }
 
 void MoveEventHandler::OnGestureEvent(ui::GestureEvent* event) {
   toplevel_window_event_handler_.OnGestureEvent(event, wm_window_);
+
+  WorkspaceEventHandlerMus* workspace_event_handler =
+      GetWorkspaceEventHandlerMus();
+  if (workspace_event_handler)
+    workspace_event_handler->OnGestureEvent(event, wm_window_);
 }
 
 void MoveEventHandler::OnCancelMode(ui::CancelModeEvent* event) {
   toplevel_window_event_handler_.RevertDrag();
 }
 
 void MoveEventHandler::OnWindowDestroying(aura::Window* window) {
   DCHECK_EQ(root_window_, window);
   Detach();
 }
 
 }  // namespace mus
 }  // namespace ash