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 UPDATER_UI_EVENT_PRODUCT_H
17 #define UPDATER_UI_EVENT_PRODUCT_H
18 
19 #include <functional>
20 #include <mutex>
21 #include "components/root_view.h"
22 #include "components/ui_view.h"
23 
24 namespace Updater {
25 struct Callback {
26     std::function<void(OHOS::UIView &)> func {nullptr};
27     bool isAsync {false};
28 };
29 using KeyCallback = std::function<void(bool)>;
30 enum class EventType {
31     TOUCHEVENT,
32     CLICKEVENT,
33     DRAGEVENT
34 };
35 
36 // avoid callback on invisible component
37 class CallBackDecorator final {
38 public:
CallBackDecorator(Callback cb)39     explicit CallBackDecorator(Callback cb) : cb_(cb) {}
40     ~CallBackDecorator() = default;
41     void operator()(OHOS::UIView &view, bool isAsync) const;
42 private:
43     static void CallbackWithGuard(Callback cb, OHOS::UIView &view);
44     Callback cb_;
45     static std::mutex mtx_;
46 };
47 
48 class LabelOnTouchListener final : public OHOS::UIView::OnTouchListener {
49 public:
LabelOnTouchListener(Callback cb,bool isConsumed)50     LabelOnTouchListener(Callback cb, bool isConsumed)
51         : cb_(cb), isConsumed_(isConsumed) {}
52     ~LabelOnTouchListener() = default;
53     bool OnRelease(OHOS::UIView &view, const OHOS::ReleaseEvent &event) override;
54 
55 private:
56     Callback cb_;
57     bool isConsumed_;
58 };
59 
60 class BtnOnEventListener final : public OHOS::UIView::OnClickListener, public OHOS::UIView::OnTouchListener {
61 public:
BtnOnEventListener(Callback cb,bool isConsumed)62     BtnOnEventListener(Callback cb, bool isConsumed)
63         : cb_(cb), isConsumed_(isConsumed) {}
64     ~BtnOnEventListener() = default;
65     bool OnClick(OHOS::UIView &view, const OHOS::ClickEvent &event) override;
66     bool OnPress(OHOS::UIView &view, const OHOS::PressEvent &event) override;
67     bool OnRelease(OHOS::UIView &view, const OHOS::ReleaseEvent &event) override;
68     bool OnCancel(OHOS::UIView &view, const OHOS::CancelEvent &event) override;
69 private:
70     Callback cb_;
71     bool isConsumed_;
72 };
73 
74 // note: only used for debug
75 class BtnOnDragListener final : public OHOS::UIView::OnDragListener {
76 public:
BtnOnDragListener(Callback cb,bool isConsumed)77     BtnOnDragListener(Callback cb, bool isConsumed)
78         : cb_(cb), isConsumed_(isConsumed) {
79     }
80     ~BtnOnDragListener() = default;
81     bool OnDragStart(OHOS::UIView &view, const OHOS::DragEvent &event) override;
82     bool OnDrag(OHOS::UIView &view, const OHOS::DragEvent &event) override;
83     bool OnDragEnd(OHOS::UIView &view, const OHOS::DragEvent &event) override;
84 
85 private:
86     Callback cb_;
87     bool isConsumed_;
88 };
89 
90 class KeyListener : public OHOS::RootView::OnKeyActListener {
91 public:
92     KeyListener() = default;
93     virtual ~KeyListener() = default;
94     bool OnKeyAct(OHOS::UIView &view, const OHOS::KeyEvent &event) override;
95     static void SetButtonPressed(bool isPressed);
96     bool ProcessPowerKey(OHOS::UIView &view, const OHOS::KeyEvent &event);
97     bool ProcessVolumeKey(OHOS::UIView &view, const OHOS::KeyEvent &event);
98 private:
99     static bool isButtonPressed_;
100 };
101 }
102 #endif
103