1  /*
2   * Copyright (c) 2022 Huawei Device Co., Ltd.
3   * Licensed under the Apache License, Version 2.0 (the "License");
4   * you may not use this file except in compliance with the License.
5   * You may obtain a copy of the License at
6   *
7   *     http://www.apache.org/licenses/LICENSE-2.0
8   *
9   * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  
16  #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MODEL_MODEL_TOUCH_HANDLER_H
17  #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MODEL_MODEL_TOUCH_HANDLER_H
18  
19  #include <functional>
20  #include <unordered_map>
21  
22  #include "data_type/pointer_event.h"
23  
24  #include "base/memory/referenced.h"
25  #include "core/components_ng/event/touch_event.h"
26  
27  namespace OHOS::Ace::NG {
28  
29  using ModelEventCallback = std::function<void(const Render3D::PointerEvent&)>;
30  
31  class ModelTouchHandler : public Referenced {
32  public:
ModelTouchHandler()33      explicit ModelTouchHandler() {}
34      ~ModelTouchHandler() override = default;
35  
36      bool HandleTouchEvent(const TouchEventInfo& info, uint32_t viewWidth, uint32_t viewHeight);
37  
SetCameraEventCallback(const ModelEventCallback & eventCallback)38      void SetCameraEventCallback(const ModelEventCallback& eventCallback)
39      {
40          cameraEventCallback_ = std::move(eventCallback);
41      }
42  
SetClickEventCallback(const ModelEventCallback & eventCallback)43      void SetClickEventCallback(const ModelEventCallback& eventCallback)
44      {
45          clickEventCallback_ = std::move(eventCallback);
46      }
47  
SetCoordinateOffset(const Offset & coordinateOffset)48      void SetCoordinateOffset(const Offset& coordinateOffset)
49      {
50          coordinateOffset_ = coordinateOffset;
51      }
52  
HandleCameraEvents(bool handle)53      void HandleCameraEvents(bool handle)
54      {
55          isHandleCameraMove_ = handle;
56      }
57  
58  private:
59      Render3D::PointerEvent CreateSceneTouchEvent(const TouchEvent& event, uint32_t viewWidth,
60          uint32_t viewHeight) const;
61      TouchEvent CreateTouchEvent(const TouchEventInfo& info) const;
62      ModelEventCallback cameraEventCallback_;
63      ModelEventCallback clickEventCallback_;
64      std::unordered_map<int32_t, TouchEvent> touches_;
65      Offset coordinateOffset_;
66  
67      bool isClicked_ = false;
68      int32_t touchCount_ = 0;
69      bool isHandleCameraMove_ = true;
70  };
71  
72  } // namespace OHOS::Ace::NG
73  
74  #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MODEL_MODEL_TOUCH_HANDLER_H
75