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annotate dep/animia/src/win/x11.cc @ 234:8ccf0302afb1

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dep/animia: convert xlib code to xcb I'm not *entirely* sure if this will work correctly for everything, but it works fine enough
author Paper <mrpapersonic@gmail.com>
date Tue, 16 Jan 2024 08:08:42 -0500
parents 8d35061e7505
children 593108b3d555
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18c8eb5d1edc x11: make it work
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1 #include "animia/win/x11.h"
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2 #include "animia/win.h"
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3 #include "animia.h"
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4
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5 #include <xcb/xcb.h>
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6 #include <xcb/res.h>
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7
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8 #include <cstdint>
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9 #include <climits>
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10 #include <cstring>
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11 #include <string>
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12 #include <set>
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13
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14 #include <iostream>
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15
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16 static size_t str_nlen(const char* s, size_t len) {
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17 size_t i = 0;
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18 for (; i < len && s[i]; i++);
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19 return i;
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20 }
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21
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22 namespace animia::internal::x11 {
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23
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24 static void GetWindowPID(xcb_connection_t* connection, const std::vector<xcb_window_t>& windows, std::unordered_map<xcb_window_t, pid_t>& result) {
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25 std::vector<xcb_res_query_client_ids_cookie_t> cookies;
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26 cookies.reserve(windows.size());
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27
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28 for (const auto& window : windows) {
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29 xcb_res_client_id_spec_t spec = {
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30 .client = window,
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31 .mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID
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32 };
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33
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34 cookies.push_back(::xcb_res_query_client_ids(connection, 1, &spec));
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35 }
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36
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37 for (size_t i = 0; i < cookies.size(); i++) {
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38 xcb_res_query_client_ids_reply_t* reply = ::xcb_res_query_client_ids_reply(connection, cookies.at(i), NULL);
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39
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40 xcb_res_client_id_value_iterator_t it = xcb_res_query_client_ids_ids_iterator(reply);
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41 for (; it.rem; xcb_res_client_id_value_next(&it)) {
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42 if (it.data->spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
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43 result[windows.at(i)] = *::xcb_res_client_id_value_value(it.data);
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44 continue;
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45 }
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46 }
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47 }
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48 }
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50 static bool GetAllTopLevelWindowsEWMH(xcb_connection_t* connection, const std::vector<xcb_window_t>& roots, std::set<xcb_window_t>& result) {
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51 const xcb_atom_t Atom__NET_CLIENT_LIST = [connection]{
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52 static constexpr std::string_view name = "_NET_CLIENT_LIST";
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53 xcb_intern_atom_cookie_t cookie = ::xcb_intern_atom(connection, true, name.size(), name.data());
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54 xcb_intern_atom_reply_t* reply = ::xcb_intern_atom_reply(connection, cookie, NULL);
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55
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56 xcb_atom_t atom = reply->atom;
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57 free(reply);
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58 return atom;
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59 }();
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60 if (Atom__NET_CLIENT_LIST == XCB_ATOM_NONE)
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61 return false; // BTFO
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62
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63 bool success = false;
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64
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65 std::vector<xcb_get_property_cookie_t> cookies;
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66 cookies.reserve(roots.size());
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67
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68 for (const auto& root : roots)
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69 cookies.push_back(::xcb_get_property(connection, 0, root, Atom__NET_CLIENT_LIST, XCB_ATOM_ANY, 0L, UINT_MAX));
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70
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71 for (const auto& cookie : cookies) {
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72 xcb_get_property_reply_t* reply = ::xcb_get_property_reply(connection, cookie, NULL);
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73 if (reply) {
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74 xcb_window_t* value = reinterpret_cast<xcb_window_t*>(::xcb_get_property_value(reply));
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75 int len = ::xcb_get_property_value_length(reply);
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76
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77 for (size_t i = 0; i < len; i++)
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78 result.insert(value[i]);
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79 success = true;
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80 }
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81 free(reply);
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82 }
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83
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84 return success;
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85 }
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86
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87 /* I have no idea why this works. */
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88 static bool WalkWindows(xcb_connection_t* connection, const std::vector<xcb_window_t>& roots, std::set<xcb_window_t>& result) {
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89 /* move this somewhere */
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90 xcb_atom_t Atom_WM_STATE = [connection]{
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91 static constexpr std::string_view name = "WM_STATE";
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92 xcb_intern_atom_cookie_t cookie = ::xcb_intern_atom(connection, true, name.size(), name.data());
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93 xcb_intern_atom_reply_t* reply = ::xcb_intern_atom_reply(connection, cookie, NULL);
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94
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95 xcb_atom_t atom = reply->atom;
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96 free(reply);
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97 return atom;
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98 }();
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99 if (Atom_WM_STATE == XCB_ATOM_NONE)
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100 return false;
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101
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102 std::vector<xcb_query_tree_cookie_t> cookies;
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103 cookies.reserve(roots.size());
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104
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105 for (const auto& root : roots)
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106 cookies.push_back(::xcb_query_tree(connection, root));
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107
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108 for (const auto& cookie : cookies) {
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109 xcb_query_tree_reply_t* reply = ::xcb_query_tree_reply(connection, cookie, NULL);
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110
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111 std::vector<xcb_window_t> windows = [reply]{
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112 xcb_window_t* windows = ::xcb_query_tree_children(reply);
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113 int len = ::xcb_query_tree_children_length(reply);
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114
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115 std::vector<xcb_window_t> w;
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116 w.reserve(len);
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117
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118 for (int i = 0; i < len; i++)
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119 w.push_back(windows[i]);
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120
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121 return w;
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122 }();
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123
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124 std::vector<xcb_get_property_cookie_t> state_property_cookies;
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125 state_property_cookies.reserve(windows.size());
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126
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127 for (int i = 0; i < windows.size(); i++)
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128 state_property_cookies.push_back(::xcb_get_property(connection, 0, windows[i], Atom_WM_STATE, Atom_WM_STATE, 0, 0));
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129
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130 for (size_t i = 0; i < state_property_cookies.size(); i++) {
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131 xcb_generic_error_t* err = NULL;
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132 xcb_get_property_reply_t* reply = ::xcb_get_property_reply(connection, state_property_cookies.at(i), &err);
166
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paper@DavesDouble.local
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133
234
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134 if (reply->format || reply->type || reply->length) {
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135 result.insert(windows[i]);
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136 free(reply);
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137 continue;
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138 }
166
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139
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
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140 free(reply);
213
58e81b42a0d6 dep/animia: win/x11: find toplevels WAY faster
Paper <mrpapersonic@gmail.com>
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141 }
58e81b42a0d6 dep/animia: win/x11: find toplevels WAY faster
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diff changeset
142
234
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143 if (WalkWindows(connection, windows, result))
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144 continue;
166
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parents: 158
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145 }
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146
234
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147 return false;
166
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148 }
54c5d80a737e dep/animia: add libutil method
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149
198
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150 bool EnumerateWindows(window_proc_t window_proc) {
158
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151 if (!window_proc)
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152 return false;
156
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153
234
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154 xcb_connection_t* connection = ::xcb_connect(NULL, NULL);
8ccf0302afb1 dep/animia: convert xlib code to xcb
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155 if (!connection)
166
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paper@DavesDouble.local
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156 return false;
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157
234
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158 std::vector<xcb_screen_t> screens;
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159
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160 {
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161 xcb_screen_iterator_t iter = ::xcb_setup_roots_iterator(xcb_get_setup(connection));
8ccf0302afb1 dep/animia: convert xlib code to xcb
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162 for (; iter.rem; ::xcb_screen_next(&iter))
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163 screens.push_back(*iter.data);
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164 }
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165
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166 std::vector<xcb_window_t> roots;
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167 roots.reserve(screens.size());
156
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168
234
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169 for (const auto& screen : screens)
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170 roots.push_back(screen.root);
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171
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172 std::set<xcb_window_t> windows;
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173 //if (!GetAllTopLevelWindowsEWMH(connection, roots, windows))
8ccf0302afb1 dep/animia: convert xlib code to xcb
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174 WalkWindows(connection, roots, windows);
8ccf0302afb1 dep/animia: convert xlib code to xcb
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175
8ccf0302afb1 dep/animia: convert xlib code to xcb
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176 std::vector<xcb_get_property_cookie_t> class_property_cookies;
8ccf0302afb1 dep/animia: convert xlib code to xcb
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177 std::vector<xcb_get_property_cookie_t> name_property_cookies;
8ccf0302afb1 dep/animia: convert xlib code to xcb
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178 std::vector<xcb_get_property_cookie_t> pid_property_cookies;
8ccf0302afb1 dep/animia: convert xlib code to xcb
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179 class_property_cookies.reserve(windows.size());
8ccf0302afb1 dep/animia: convert xlib code to xcb
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180 name_property_cookies.reserve(windows.size());
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
181 pid_property_cookies.reserve(windows.size());
156
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parents:
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182
166
54c5d80a737e dep/animia: add libutil method
paper@DavesDouble.local
parents: 158
diff changeset
183 for (const auto& window : windows) {
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
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diff changeset
184 class_property_cookies.push_back(::xcb_get_property(connection, 0, window, XCB_ATOM_WM_CLASS, XCB_ATOM_STRING, 0L, 2048L));
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
185 name_property_cookies.push_back(::xcb_get_property(connection, 0, window, XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 0L, UINT_MAX));
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
186 pid_property_cookies.push_back(::xcb_get_property(connection, 0, window, XCB_ATOM_WM_NAME, XCB_ATOM_CARDINAL, 0L, 1L));
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
187 }
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
188
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
189 size_t i = 0;
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
190 for (const auto& window : windows) {
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
191 Window win = {0};
158
80d6b28eb29f dep/animia: fix most X11 stuff
Paper <mrpapersonic@gmail.com>
parents: 157
diff changeset
192 win.id = window;
157
18c8eb5d1edc x11: make it work
Paper <mrpapersonic@gmail.com>
parents: 156
diff changeset
193 {
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
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diff changeset
194 xcb_get_property_reply_t* reply = ::xcb_get_property_reply(connection, class_property_cookies.at(i), NULL);
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
195 if (reply && reply->format == 8) {
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
196 const char* data = reinterpret_cast<char*>(::xcb_get_property_value(reply));
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
197 const int data_len = ::xcb_get_property_value_length(reply);
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
198
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
199 int instance_len = str_nlen(data, data_len);
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
200 const char* class_name = data + instance_len + 1;
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
201
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
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diff changeset
202 win.class_name = std::string(class_name, str_nlen(class_name, data_len - (instance_len + 1)));
157
18c8eb5d1edc x11: make it work
Paper <mrpapersonic@gmail.com>
parents: 156
diff changeset
203 }
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
204 free(reply);
157
18c8eb5d1edc x11: make it work
Paper <mrpapersonic@gmail.com>
parents: 156
diff changeset
205 }
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
206 {
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
207 xcb_get_property_reply_t* reply = ::xcb_get_property_reply(connection, name_property_cookies.at(i), NULL);
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
208 if (reply) {
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
209 const char* data = reinterpret_cast<char*>(::xcb_get_property_value(reply));
8ccf0302afb1 dep/animia: convert xlib code to xcb
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diff changeset
210 int len = ::xcb_get_property_value_length(reply);
156
cdf79282d647 dep/animia: add VERY early x11 window stuff
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parents:
diff changeset
211
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
212 win.text = std::string((char*)data, len);
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
213 }
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
214 free(reply);
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
215 }
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
216 std::cout << win.class_name << ": " << win.text << std::endl;
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
217 Process proc = {0};
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
218 {
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
219 xcb_get_property_reply_t* reply = ::xcb_get_property_reply(connection, pid_property_cookies.at(i), NULL);
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
220 if (reply)
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
221 proc.pid = *reinterpret_cast<uint32_t*>(::xcb_get_property_value(reply));
156
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
222
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
223 free(reply);
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
224 }
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
225 if (!window_proc(proc, win)) {
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
226 ::xcb_disconnect(connection);
156
cdf79282d647 dep/animia: add VERY early x11 window stuff
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parents:
diff changeset
227 return false;
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
228 }
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
229 i++;
156
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
230 }
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
231
234
8ccf0302afb1 dep/animia: convert xlib code to xcb
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parents: 214
diff changeset
232 ::xcb_disconnect(connection);
8ccf0302afb1 dep/animia: convert xlib code to xcb
Paper <mrpapersonic@gmail.com>
parents: 214
diff changeset
233
156
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
234 return true;
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
235 }
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
236
cdf79282d647 dep/animia: add VERY early x11 window stuff
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
237 }