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annotate xia-inhibitor.c @ 19:1421ea50aa5c default tip

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Improve build system Do not clobber CPPFLAGS, use XCPPFLAGS instead. Request POSIX:2004 headers and libraries. Specify shared libraries in the correct order.
author Guido Berhoerster <guido+xinhibit-applet@berhoerster.name>
date Tue, 13 Sep 2016 20:57:12 +0200
parents 14f31e92372f
children
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1 /*
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2 * Copyright (C) 2013 Guido Berhoerster <guido+xinhibit-applet@berhoerster.name>
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3 *
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4 * Permission is hereby granted, free of charge, to any person obtaining
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5 * a copy of this software and associated documentation files (the
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6 * "Software"), to deal in the Software without restriction, including
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7 * without limitation the rights to use, copy, modify, merge, publish,
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8 * distribute, sublicense, and/or sell copies of the Software, and to
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9 * permit persons to whom the Software is furnished to do so, subject to
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10 * the following conditions:
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11 *
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12 * The above copyright notice and this permission notice shall be included
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13 * in all copies or substantial portions of the Software.
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14 *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 */
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23
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24 #include <X11/Xlib.h>
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25 #include <X11/keysym.h>
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26 #include <X11/extensions/Xext.h>
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27 #ifdef HAVE_LIBXTST
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28 #include <X11/extensions/XTest.h>
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29 #endif /* HAVE_LIBXTST */
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30 #include <glib.h>
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31 #include <glib/gi18n.h>
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32 #include <gdk/gdkx.h>
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33 #include "xia-inhibitor.h"
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34
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35 #define FAKE_EVENT_TIMEOUT 20
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36
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37 G_DEFINE_TYPE(XiaInhibitor, xia_inhibitor, G_TYPE_OBJECT)
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38
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39 #define XIA_INHIBITOR_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj),\
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40 XIA_TYPE_INHIBITOR, XiaInhibitorPrivate))
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41
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42 struct _XiaInhibitorPrivate {
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43 XiaInhibitor *inhibitor;
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44 gboolean inhibited;
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45 gboolean have_xtest;
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46 guint generate_fake_event_id;
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47 };
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48
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49 enum { PROP_0, PROP_INHIBITED };
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50
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51 static gboolean
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52 generate_fake_event(gpointer data)
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53 {
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54 #ifdef HAVE_LIBXTST
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55 XiaInhibitor *self = XIA_INHIBITOR(data);
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56 static KeyCode keycode = 0;
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57
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58 if (!self->priv->have_xtest) {
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59 return (TRUE);
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60 }
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61
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62 if (keycode == 0) {
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63 keycode = XKeysymToKeycode(gdk_x11_get_default_xdisplay(),
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64 XK_Shift_L);
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65 if (keycode == 0) {
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66 return (TRUE);
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67 }
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68 }
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69
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70 XTestFakeKeyEvent(gdk_x11_get_default_xdisplay(), keycode, True, 0);
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71 XTestFakeKeyEvent(gdk_x11_get_default_xdisplay(), keycode, False, 0);
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72
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73 g_debug("Generated fake key event using XTEST");
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74 #endif /* HAVE_LIBXTST */
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75
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76 return (TRUE);
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77 }
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78
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79 static void
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80 xia_inhibitor_set_property(GObject *object, guint property_id,
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81 const GValue *value, GParamSpec *pspec)
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82 {
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83 XiaInhibitor *self = XIA_INHIBITOR(object);
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84
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85 switch (property_id) {
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86 case PROP_INHIBITED: {
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87 gboolean inhibited = g_value_get_boolean(value);
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88 if (self->priv->inhibited == inhibited) {
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89 return;
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90 }
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91
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92 if (inhibited) {
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93 self->priv->generate_fake_event_id = \
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94 g_timeout_add_seconds(FAKE_EVENT_TIMEOUT,
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95 (GSourceFunc)generate_fake_event, self);
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96 } else {
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97 g_source_remove(self->priv->generate_fake_event_id);
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98 self->priv->generate_fake_event_id = 0;
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99 }
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100
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101 self->priv->inhibited = inhibited;
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102
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103 g_debug("Automatic power management is %s", (inhibited) ?
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104 "inhibited" : "enabled");
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105 break;
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106 }
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107 default:
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108 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
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109 break;
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110 }
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111 }
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112
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113 static void
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114 xia_inhibitor_get_property(GObject *object, guint property_id, GValue *value,
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115 GParamSpec *pspec)
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116 {
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117 XiaInhibitor *self = XIA_INHIBITOR(object);
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118
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119 switch (property_id) {
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120 case PROP_INHIBITED:
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121 g_value_set_boolean(value, self->priv->inhibited);
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122 break;
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123 default:
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124 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id,
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125 pspec);
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126 break;
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127 }
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128 }
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129
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130 static void
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131 xia_inhibitor_finalize(GObject *gobject)
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132 {
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133 XiaInhibitor *self = XIA_INHIBITOR(gobject);
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134
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135 if (self->priv->generate_fake_event_id != 0) {
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136 g_source_remove(self->priv->generate_fake_event_id);
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137 self->priv->generate_fake_event_id = 0;
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138 }
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139
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140 G_OBJECT_CLASS(xia_inhibitor_parent_class)->finalize(gobject);
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141 }
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142
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143 static void
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144 xia_inhibitor_class_init(XiaInhibitorClass *klass)
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145 {
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146 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
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147 GParamSpec *pspec;
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148
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149 gobject_class->set_property = xia_inhibitor_set_property;
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150 gobject_class->get_property = xia_inhibitor_get_property;
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151 gobject_class->finalize = xia_inhibitor_finalize;
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152
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153 pspec = g_param_spec_boolean("inhibited", "Inhibited",
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154 "Whether automatic power management is inhibited", FALSE,
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155 G_PARAM_READWRITE);
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156 g_object_class_install_property(gobject_class, PROP_INHIBITED, pspec);
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157
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158 g_type_class_add_private(klass, sizeof (XiaInhibitorPrivate));
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159 }
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160
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161 static void
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162 xia_inhibitor_init(XiaInhibitor *self)
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163 {
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164 #ifdef HAVE_LIBXTST
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165 int event_base;
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166 int error_base;
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167 int xtest_major;
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168 int xtest_minor;
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169 #endif /* HAVE_LIBXTST */
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170
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171 self->priv = XIA_INHIBITOR_GET_PRIVATE(self);
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172
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173 self->priv->inhibited = FALSE;
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174 self->priv->generate_fake_event_id = 0;
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175
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176 #ifdef HAVE_LIBXTST
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177 self->priv->have_xtest = ((gboolean)XTestQueryExtension(
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178 gdk_x11_get_default_xdisplay(), &event_base, &error_base,
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179 &xtest_major, &xtest_minor));
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180 #endif /* HAVE_LIBXTST */
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181 }
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182
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183 void
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184 xia_inhibitor_set_inhibited(XiaInhibitor *self, gboolean inhibited)
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185 {
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186 g_return_if_fail(XIA_IS_INHIBITOR(self));
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187
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188 g_object_set(G_OBJECT(self), "inhibited", inhibited, NULL);
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189 }
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190
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191 gboolean
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192 xia_inhibitor_get_inhibited(XiaInhibitor *self)
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193 {
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194 gboolean inhibited;
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195
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196 g_return_val_if_fail(XIA_IS_INHIBITOR(self), FALSE);
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197
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198 g_object_get(G_OBJECT(self), "inhibited", &inhibited, NULL);
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199
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200 return (inhibited);
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201 }
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202
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203 XiaInhibitor *
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204 xia_inhibitor_new(void)
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205 {
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206 return (g_object_new(XIA_TYPE_INHIBITOR, NULL));
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207 }