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annotate dep/animia/src/strategist.cc @ 191:0fc126d52de4

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animia: multiple stylistic choices win.class_name is now used to store bundle IDs on OS X, add some little explanations here and there for dumb stuff
author Paper <mrpapersonic@gmail.com>
date Thu, 07 Dec 2023 01:48:04 -0500
parents cdf79282d647
children bc1ae1810855
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1 #include <regex>
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2
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3 #include "animia.h"
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4 #include "animia/fd.h"
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5 #include "animia/strategies.h"
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6 #include "animia/util.h"
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7
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8 namespace animia::internal {
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9
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10 class Strategist {
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11 public:
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12 Strategist(Result& result) : result_(result) {}
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13
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14 bool ApplyStrategies();
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15
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16 private:
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17 bool AddMedia(const MediaInfo media_information);
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18
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19 bool ApplyOpenFilesStrategy();
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20 bool ApplyWindowTitleStrategy();
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21
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22 Result& result_;
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23 };
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24
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25 bool Strategist::ApplyStrategies() {
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26 bool success = false;
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27
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28 switch (result_.type) {
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29 case ResultType::Process: success |= ApplyOpenFilesStrategy(); break;
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30 case ResultType::Window: success |= ApplyWindowTitleStrategy(); break;
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31 }
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32
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33 return success;
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34 }
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35
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36 bool ApplyStrategies(std::vector<Result>& results) {
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37 bool success = false;
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38
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39 for (auto& result : results) {
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40 Strategist strategist(result);
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41 success |= strategist.ApplyStrategies();
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42 }
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43
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44 return success;
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45 }
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46
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47 ////////////////////////////////////////////////////////////////////////////////
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48
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49 static bool ApplyWindowTitleFormat(const std::string& format, std::string& title) {
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50 if (format.empty())
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51 return false;
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52
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53 const std::regex pattern(format);
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54 std::smatch match;
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55 std::regex_match(title, match, pattern);
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56
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57 // Use the first non-empty match result, because the regular expression may
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58 // contain multiple sub-expressions.
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59 for (size_t i = 1; i < match.size(); ++i) {
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60 if (!match.str(i).empty()) {
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61 title = match.str(i);
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62 return true;
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63 }
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64 }
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65
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66 // Results are empty, but the match was successful
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67 if (!match.empty()) {
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68 title.clear();
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69 return true;
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70 }
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71
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72 return true;
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73 }
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74
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75 static MediaInfoType InferMediaInformationType(const std::string& str) {
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76 const std::regex path_pattern(R"(^(?:[A-Za-z]:[/\\]|\\\\)[^<>:"/\\|?*]+)");
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77 return (std::regex_search(str, path_pattern)) ? MediaInfoType::File : MediaInfoType::Unknown;
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78 }
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79
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80 bool Strategist::ApplyWindowTitleStrategy() {
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81 auto title = result_.window.text;
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82 ApplyWindowTitleFormat(result_.player.window_title_format, title);
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83
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84 return AddMedia({InferMediaInformationType(title), title});
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85 }
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86
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87 bool Strategist::ApplyOpenFilesStrategy() {
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88 bool success = false;
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89
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90 const std::set<pid_t> pids{result_.process.pid};
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91
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92 auto open_file_proc = [&](const OpenFile& file) -> bool {
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93 success |= AddMedia({MediaInfoType::File, file.path});
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94 return true;
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95 };
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96
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97 fd.EnumerateOpenFiles(pids, open_file_proc);
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98
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99 return success;
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100 }
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101
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102 ////////////////////////////////////////////////////////////////////////////////
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103
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104 bool Strategist::AddMedia(const MediaInfo media_information) {
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105 if (media_information.value.empty())
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106 return false;
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107
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108 Media media;
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109 media.information.push_back(media_information);
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110 result_.media.push_back(std::move(media));
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111
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112 return true;
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113 }
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114
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115 } // namespace animia::internal