mus: Implement interwindow drag and drop

services/ui/ws/test_utils.h

 // 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.
 
 #ifndef SERVICES_UI_WS_TEST_UTILS_H_
 #define SERVICES_UI_WS_TEST_UTILS_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
 
 #include "base/message_loop/message_loop.h"
 #include "services/ui/public/interfaces/display.mojom.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
+#include "services/ui/ws/current_drag_operation.h"
 #include "services/ui/ws/display.h"
 #include "services/ui/ws/display_binding.h"
 #include "services/ui/ws/event_dispatcher.h"
 #include "services/ui/ws/platform_display.h"
 #include "services/ui/ws/platform_display_factory.h"
 #include "services/ui/ws/test_change_tracker.h"
 #include "services/ui/ws/user_activity_monitor.h"
 #include "services/ui/ws/user_display_manager.h"
 #include "services/ui/ws/user_id.h"
 #include "services/ui/ws/window_manager_state.h"
@@ skipping 184 matching lines @@
   }
 
  private:
   WindowManagerState* wms_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerStateTestApi);
 };
 
 // -----------------------------------------------------------------------------
 
+class CurrentDragOperationTestApi {
+ public:
+  explicit CurrentDragOperationTestApi(CurrentDragOperation* op) : op_(op) {}
+  ~CurrentDragOperationTestApi() {}
+
+  size_t GetSizeOfQueueForWindow(ServerWindow* window) {
+    return op_->GetSizeOfQueueForWindow(window);
+  }
+
+  ServerWindow* GetCurrentTarget() { return op_->current_target_window_; }
+
+ private:
+  CurrentDragOperation* op_;
+
+  DISALLOW_COPY_AND_ASSIGN(CurrentDragOperationTestApi);
+};
+
+// -----------------------------------------------------------------------------
+
 // Factory that always embeds the new WindowTree as the root user id.
 class TestDisplayBinding : public DisplayBinding {
  public:
   explicit TestDisplayBinding(WindowServer* window_server)
       : window_server_(window_server) {}
   ~TestDisplayBinding() override {}
 
  private:
   // DisplayBinding:
   WindowTree* CreateWindowTree(ServerWindow* root) override;
@@ skipping 174 matching lines @@
                                      mojo::Array<uint8_t> new_data) override;
   void OnWindowInputEvent(uint32_t event_id,
                           uint32_t window,
                           std::unique_ptr<ui::Event> event,
                           bool matches_pointer_watcher) override;
   void OnPointerEventObserved(std::unique_ptr<ui::Event> event,
                               uint32_t window_id) override;
   void OnWindowFocused(uint32_t focused_window_id) override;
   void OnWindowPredefinedCursorChanged(uint32_t window_id,
                                        mojom::Cursor cursor_id) override;
+  void OnDragStart(
+      Id window_id,
+      mojo::Map<mojo::String, mojo::Array<uint8_t>> mime_data) override;
+  void OnDragEnter(uint32_t window,
+                   uint32_t key_state,
+                   const gfx::Point& position,
+                   uint32_t effect_bitmask,
+                   const OnDragEnterCallback& callback) override;
+  void OnDragOver(uint32_t window,
+                  uint32_t key_state,
+                  const gfx::Point& position,
+                  uint32_t effect_bitmask,
+                  const OnDragOverCallback& callback) override;
+  void OnDragLeave(uint32_t window) override;
+  void OnDragDrop(uint32_t window,
+                  uint32_t key_state,
+                  const gfx::Point& position,
+                  uint32_t effect_bitmask,
+                  const OnDragDropCallback& callback) override;
+  void OnDragFinish(Id window_id) override;
   void OnChangeCompleted(uint32_t change_id, bool success) override;
   void RequestClose(uint32_t window_id) override;
   void GetWindowManager(
       mojo::AssociatedInterfaceRequest<mojom::WindowManager> internal) override;
 
   TestChangeTracker tracker_;
   mojo::Binding<mojom::WindowTreeClient> binding_;
   bool record_on_change_completed_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(TestWindowTreeClient);
@@ skipping 153 matching lines @@
 ServerWindow* NewWindowInTree(WindowTree* tree, ClientWindowId* client_id);
 ServerWindow* NewWindowInTreeWithParent(WindowTree* tree,
                                         ServerWindow* parent,
                                         ClientWindowId* client_id);
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_TEST_UTILS_H_