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annotate dep/animia/src/strategist.cc @ 237:a7d0d543b334

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*: make OS X builds succeed new script: deploy_build.sh, creates the app bundle
author Paper <paper@paper.us.eu.org>
date Fri, 19 Jan 2024 11:14:44 -0500
parents 4d461ef7d424
children
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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 #include <iostream>
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9
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10 namespace animia::internal {
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11
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12 class Strategist {
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13 public:
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14 Strategist(Result& result) : result_(result) {}
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15
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16 bool ApplyStrategies();
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17
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18 private:
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19 bool AddMedia(const MediaInfo media_information);
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20
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21 bool ApplyOpenFilesStrategy();
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22 bool ApplyWindowTitleStrategy();
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23
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24 Result& result_;
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25 };
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26
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27 bool Strategist::ApplyStrategies() {
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28 bool success = false;
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29
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30 switch (result_.type) {
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31 case ResultType::Process: success |= ApplyOpenFilesStrategy(); break;
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32 case ResultType::Window: success |= ApplyWindowTitleStrategy(); break;
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33 default: break;
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34 }
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35
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36 return success;
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37 }
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38
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39 bool ApplyStrategies(std::vector<Result>& results) {
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40 bool success = false;
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41
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42 for (auto& result : results) {
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43 Strategist strategist(result);
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44 success |= strategist.ApplyStrategies();
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45 }
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46
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47 return success;
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48 }
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49
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50 ////////////////////////////////////////////////////////////////////////////////
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51
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52 static bool ApplyWindowTitleFormat(const std::string& format, std::string& title) {
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53 if (format.empty())
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54 return false;
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55
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56 const std::regex pattern(format);
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57 std::smatch match;
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58 std::regex_match(title, match, pattern);
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59
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60 // Use the first non-empty match result, because the regular expression may
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61 // contain multiple sub-expressions.
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62 for (size_t i = 1; i < match.size(); ++i) {
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63 if (!match.str(i).empty()) {
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64 title = match.str(i);
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65 return true;
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66 }
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67 }
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68
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69 // Results are empty, but the match was successful
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70 if (!match.empty()) {
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71 title.clear();
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72 return true;
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73 }
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74
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75 return true;
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76 }
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77
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78 static MediaInfoType InferMediaInformationType(const std::string& str) {
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79 const std::regex path_pattern(R"(^(?:[A-Za-z]:[/\\]|\\\\)[^<>:"/\\|?*]+)");
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80 return (std::regex_search(str, path_pattern)) ? MediaInfoType::File : MediaInfoType::Unknown;
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81 }
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82
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83 bool Strategist::ApplyWindowTitleStrategy() {
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84 auto title = result_.window.text;
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85 ApplyWindowTitleFormat(result_.player.window_title_format, title);
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86
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87 return AddMedia({InferMediaInformationType(title), title});
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88 }
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89
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90 bool Strategist::ApplyOpenFilesStrategy() {
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91 bool success = false;
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92
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93 const std::set<pid_t> pids{result_.process.pid};
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94
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95 auto open_file_proc = [&](const OpenFile& file) -> bool {
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96 success |= AddMedia({MediaInfoType::File, file.path});
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97 return true;
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98 };
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99
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100 EnumerateOpenFiles(pids, open_file_proc);
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101
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102 return success;
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103 }
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104
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105 ////////////////////////////////////////////////////////////////////////////////
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106
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107 bool Strategist::AddMedia(const MediaInfo media_information) {
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108 if (media_information.value.empty())
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109 return false;
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110
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111 Media media;
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112 media.information.push_back(media_information);
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113 result_.media.push_back(std::move(media));
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114
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115 return true;
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116 }
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117
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118 } // namespace animia::internal