1 /*
2  * Copyright (c) 2024 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_TEXT_FIELD_PATTERN_MAGNIFIER_CONTROLLER_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TEXT_FIELD_PATTERN_MAGNIFIER_CONTROLLER_H
18 
19 #include "base/memory/type_info_base.h"
20 #include "base/geometry/ng/offset_t.h"
21 #include "base/geometry/ng/size_t.h"
22 #include "base/memory/ace_type.h"
23 #include "base/memory/referenced.h"
24 #include "core/components_ng/pattern/pattern.h"
25 #include "core/components_ng/render/drawing_forward.h"
26 #include "frameworks/base/memory/referenced.h"
27 
28 namespace OHOS::Ace::NG {
29 
30 class MagnifierController : public virtual AceType {
31     DECLARE_ACE_TYPE(MagnifierController, AceType);
32 
33 public:
MagnifierController(const WeakPtr<Pattern> & pattern)34     explicit MagnifierController(const WeakPtr<Pattern>& pattern) : pattern_(pattern) {}
35     ~MagnifierController() override = default;
36 
37     void OpenMagnifier();
38     void CloseMagnifier();
39 
40     bool UpdateMagnifierOffsetX(OffsetF& magnifierPaintOffset, VectorF& magnifierOffset, const OffsetF& basePaintOffset,
41         const RefPtr<FrameNode>& host);
42     bool UpdateMagnifierOffsetY(OffsetF& magnifierPaintOffset, VectorF& magnifierOffset, const OffsetF& basePaintOffset,
43         const RefPtr<FrameNode>& host);
44     bool UpdateMagnifierOffset();
45 
46     void UpdateShowMagnifier(bool isShowMagnifier = false);
47 
GetShowMagnifier()48     bool GetShowMagnifier() const
49     {
50         return isShowMagnifier_;
51     }
52 
SetLocalOffset(OffsetF localOffset)53     void SetLocalOffset(OffsetF localOffset)
54     {
55         localOffset_.SetX(localOffset.GetX());
56         localOffset_.SetY(localOffset.GetY());
57         magnifierNodeExist_ = true;
58         UpdateShowMagnifier(true);
59     }
60 
GetLocalOffset()61     OffsetF GetLocalOffset() const
62     {
63         return localOffset_;
64     }
65 
GetMagnifierNode()66     RefPtr<FrameNode> GetMagnifierNode() const
67     {
68         return magnifierFrameNode_;
69     }
70     void ChangeMagnifierVisibility(const bool& visible);
71 
72     void InitMagnifierParams();
73 
74     uint32_t ArgbToRgba(const uint32_t& color);
75 
76     void RemoveMagnifierFrameNode();
77 
SetColorModeChange(const bool & colorModeChange)78     void SetColorModeChange(const bool& colorModeChange)
79     {
80         colorModeChange_ = colorModeChange;
81     }
82     RefPtr<FrameNode> GetRootNode();
83 
84     RefPtr<UINode> FindWindowScene(const RefPtr<FrameNode>& targetNode);
85 
GetMagnifierNodeExist()86     bool GetMagnifierNodeExist() const
87     {
88         return magnifierNodeExist_;
89     }
90 private:
91     MagnifierParams params_;
92     bool visible_ = false;
93     void CreateMagnifierChildNode();
94 
95     RefPtr<FrameNode> magnifierFrameNode_ = nullptr;
96     bool isShowMagnifier_ = false;
97     OffsetF localOffset_;
98     WeakPtr<Pattern> pattern_;
99     bool removeFrameNode_ = false;
100     bool colorModeChange_ = false;
101     bool magnifierNodeExist_ = false;
102     Dimension magnifierNodeWidth_;
103     Dimension magnifierNodeHeight_;
104 };
105 } // namespace OHOS::Ace::NG
106 
107 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TEXT_FIELD_PATTERN_MAGNIFIER_CONTROLLER_H
108