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annotate src/strategist.cc @ 30:a76e55e098d1

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util: rewrite functions in C-ish there are C++ bindings still put in place. the code should be valid C, except for the use of <regex>, which ought to go anyway. eventually I'll actually *test* this stuff aside from the TrimRight crap
author Paper <paper@tflc.us>
date Sun, 09 Feb 2025 23:18:57 -0500
parents fac2b2d242d3
children 668f4f31ddda
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1 #include <regex>
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2 #include <unordered_map>
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3
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4 #include "animone.h"
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5 #include "animone/a11y.h"
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6 #include "animone/fd.h"
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7 #include "animone/strategies.h"
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8 #include "animone/util.h"
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9
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10 /* This file was changed lots from anisthesia. Most notably we don't use classes here
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11 * anymore, and we just pass the result vector to different function that append
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12 * to the result (which is better imo) */
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13
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14 namespace animone::internal {
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15
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16 static bool ApplyWindowTitleFormat(const std::string& format, std::string& title) {
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17 if (format.empty())
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18 return false;
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19
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20 const std::regex pattern(format);
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21 std::smatch match;
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22 std::regex_match(title, match, pattern);
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23
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24 // Use the first non-empty match result, because the regular expression may
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25 // contain multiple sub-expressions.
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26 for (size_t i = 1; i < match.size(); ++i) {
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27 if (!match.str(i).empty()) {
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28 title = match.str(i);
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29 return true;
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30 }
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31 }
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32
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33 // Results are empty, but the match was successful
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34 if (!match.empty()) {
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35 title.clear();
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36 return true;
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37 }
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38
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39 return true;
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40 }
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41
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42 static MediaInfoType InferMediaInformationType(const std::string& str) {
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43 const std::regex path_pattern(R"(^(?:[A-Za-z]:[/\\]|\\\\)[^<>:"/\\|?*]+)");
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44 return (std::regex_search(str, path_pattern)) ? MediaInfoType::File : MediaInfoType::Unknown;
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45 }
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46
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47 static bool AddMedia(Result& result, const MediaInfo media_information) {
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48 if (media_information.value.empty())
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49 return false;
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50
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51 Media media = {
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52 .information = {media_information}
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53 };
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54 result.media.push_back(std::move(media));
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55
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56 return true;
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57 }
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58
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59 /* ------------------------------------------------------------------------- */
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60 /* strategies */
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61
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62 static bool ApplyWindowTitleStrategy(std::vector<Result>& results) {
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63 bool success = false;
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64
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65 for (auto& result : results) {
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66 auto title = result.window.text;
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67 if (title.empty())
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68 continue;
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69
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70 ApplyWindowTitleFormat(result.player.window_title_format, title);
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71
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72 success |= AddMedia(result, {InferMediaInformationType(title), title});
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73 }
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74
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75 return success;
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76 }
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77
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78 static bool ApplyOpenFilesStrategy(std::vector<Result>& results) {
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79 bool success = false;
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80
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81 /* map pids to our results, saves time with open_file_proc */
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82 std::unordered_map<pid_t, Result*> pid_map;
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83 std::set<pid_t> pids;
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84
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85 for (Result& result : results) {
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86 const pid_t pid = result.process.pid;
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87 if (!pid)
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88 continue;
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89
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90 pid_map.insert({pid, &result});
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91 pids.insert(pid);
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92 }
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93
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94 auto open_file_proc = [&](const OpenFile& file) -> bool {
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95 success |= AddMedia(*pid_map[file.pid], {MediaInfoType::File, file.path});
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96 return true;
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97 };
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98
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99 EnumerateOpenFiles(pids, open_file_proc);
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100
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101 return success;
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102 }
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103
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104 static bool ApplyAccessibilityStrategy(std::vector<Result>& results) {
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105 bool success = false;
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106
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107 for (Result& result : results) {
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108 auto web_browser_proc = [&result](const WebBrowserInformation& info) {
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109 auto value = info.value;
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110
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111 switch (info.type) {
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112 case WebBrowserInformationType::Address:
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113 AddMedia(result, {MediaInfoType::Url, value});
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114 break;
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115 case WebBrowserInformationType::Title:
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116 ApplyWindowTitleFormat(result.player.window_title_format, value);
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117 AddMedia(result, {MediaInfoType::Title, value});
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118 break;
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119 case WebBrowserInformationType::Tab:
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120 AddMedia(result, {MediaInfoType::Tab, value});
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121 break;
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122 }
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123 };
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124
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125 success |= GetWebBrowserInformation(result, web_browser_proc);
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126 }
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127
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128 return success;
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129 }
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130
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131 /* ------------------------------------------------------------------------- */
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132
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133 bool ApplyStrategies(std::vector<Result>& results) {
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134 bool success = false;
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135
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136 success |= ApplyWindowTitleStrategy(results);
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137 success |= ApplyOpenFilesStrategy(results);
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138 success |= ApplyAccessibilityStrategy(results);
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139
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140 return success;
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141 }
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142
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143 } // namespace animone::internal