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_COMMON_LAYOUT_TEMPLATES_PARSER_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_COMMON_LAYOUT_TEMPLATES_PARSER_H
18 
19 #include "base/utils/noncopyable.h"
20 #include "base/geometry/dimension.h"
21 #include "core/pipeline/base/render_node.h"
22 
23 namespace OHOS::Ace {
24 class TemplatesParser final : public NonCopyable {
25 public:
26     TemplatesParser() = default;
27     ~TemplatesParser() override = default;
TemplatesParser(const WeakPtr<RenderNode> & renderNode)28     explicit TemplatesParser(const WeakPtr<RenderNode>& renderNode) : renderNode_(renderNode) {}
29 
30     std::vector<double> ParseArgs(const WeakPtr<RenderNode>& node, const std::string& args, double size, double gap);
31 
32 private:
33     enum class RepeatType {
34         NONE = 0,
35         FIXED_COUNT,
36         AUTO_FILL,
37     };
38 
39     using Value = struct {
40         std::string str;
41         bool isRepeat = false;
42     };
43 
44     static void RTrim(std::string& str);
45     static std::string TrimTemplate(std::string& str);
46     static std::string GetRepeat(const std::string& str);
47     double ParseUnit(const Value& val, double size);
48 
49     static void ConvertRepeatArgs(std::string& handledArg);
50     static std::vector<double> ParseArgs(const std::string& args, double size, double gap);
51     static std::vector<double> ParseAutoFill(const std::vector<std::string>& strs, double size, double gap);
52 
53     double ConvertVirtualSize(const std::string& val, const DimensionUnit& unit, double size);
54     static bool SplitTemplate(const std::string& str, std::vector<Value>& vec, bool isRepeat = false);
55     std::vector<double> ParseArgsWithAutoFill(const std::string& args, double size, double gap);
56     static bool CheckRepeatAndSplitString(
57         std::vector<std::string>& vec, std::string& repeat, std::vector<Value>& resultvec);
58     static bool CheckAutoFillParameter(
59         const std::string& args, double size, std::vector<double>& out,  std::vector<Value>& resultvec);
60 
61     WeakPtr<RenderNode> renderNode_;
62     ACE_DISALLOW_COPY_AND_MOVE(TemplatesParser);
63 };
64 } // namespace OHOS::Ace
65 
66 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_COMMON_LAYOUT_TEMPLATES_PARSER_H
67