quick-settings: add Caffeine tile with logind idle inhibitor

data/icons/scalable/actions/caffeine-off-symbolic.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg height="16" width="16" version="1.1" xmlns="http://www.w3.org/2000/svg">
+  <g style="display:inline">
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+  </g>
+  <g style="display:inline">
+    <path d="m 6.555174,3.6689621 c -1.97865,-0.004 -4.74917,0.59448 -4.36893,1.9299 0.27853,0.9782 2.7468,1.37112 4.2822,1.34057 2.39093,-0.0476 3.99564,-0.15186 4.49936,-1.16589 0.66845,-1.34563 -2.32411,-2.10075 -4.41263,-2.10458 z" style="fill:#bebebe;fill-opacity:1;stroke:none;stroke-width:1.7"/>
+  </g>
+</svg>

data/icons/scalable/actions/caffeine-on-symbolic.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg height="16" width="16" version="1.1" xmlns="http://www.w3.org/2000/svg">
+  <g style="display:inline">
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+    <path d="m 296.01831,634.29869 c -0.42246,0.1058 -0.81557,0.29843 -1.20581,0.48706 0.25,0.48958 0.5,0.97917 0.75,1.46875 0.52953,-0.26079 1.07925,-0.48948 1.65621,-0.62136 0.19598,0.29034 0.0613,0.65559 0.0965,0.98001 -0.0265,0.76535 -0.0891,1.53332 -0.2618,2.281 -0.19796,0.24661 -0.50311,0.0211 -0.71411,-0.0864 -0.30932,-0.0721 -0.53729,-0.31117 -0.83024,-0.41286 -0.12503,-0.008 -0.14438,0.15951 -0.217,0.23727 -0.23278,0.37411 -0.46557,0.74823 -0.69835,1.12235 0.81565,0.49866 1.72225,0.99381 2.70984,0.93005 0.59894,-0.0615 1.14074,-0.51865 1.25926,-1.11639 0.18671,-0.66571 0.27615,-1.35495 0.35899,-2.03989 0.0715,-0.82121 0.0983,-1.67218 -0.1491,-2.46792 -0.15932,-0.48309 -0.5391,-0.9535 -1.0785,-0.99879 -0.5706,-0.0824 -1.12444,0.12918 -1.67588,0.23714 z" style="fill:#bebebe;fill-opacity:1;stroke:none;stroke-width:1.64499998" transform="translate(-283.00021,-629)"/>
+  </g>
+  <g style="display:inline">
+    <path d="m 5.2441406,-0.23632812 c 0,0 -0.3394129,0.25195871 -0.6777344,0.6328125 -0.3383213,0.38085377 -0.7447236,0.90721162 -0.75,1.63085942 -0.00521,0.7085985 0.3672604,1.2099598 0.6132813,1.5761718 0.2460209,0.3662121 0.3798468,0.5897235 0.3691406,0.8867188 -0.020225,0.5610635 -0.8476562,1.1152343 -0.8476562,1.1152344 l 0.6230469,1.140625 c 0,0 1.4692012,-0.7044492 1.5234374,-2.2089844 C 6.1241401,3.8024329 5.7656251,3.2597634 5.5097656,2.8789062 5.2539062,2.498049 5.1154484,2.2737803 5.1171875,2.0371094 5.118311,1.8830216 5.2957281,1.5336911 5.5390625,1.2597656 5.7823969,0.98584026 6.0234375,0.80273438 6.0234375,0.80273438 Z m 3.3261719,0 c 0,0 -0.3394129,0.25195871 -0.6777344,0.6328125 C 7.5542568,0.77733815 7.1478545,1.303696 7.1425781,2.0273438 7.1373712,2.7359423 7.5098385,3.2373036 7.7558594,3.6035156 8.0018802,3.9697277 8.1357062,4.1932391 8.125,4.4902344 8.1047745,5.0512979 7.2773438,5.6054687 7.2773438,5.6054688 l 0.6230468,1.140625 c 0,0 1.4692013,-0.7044492 1.5234375,-2.2089844 C 9.450312,3.8024329 9.0917969,3.2597634 8.8359375,2.8789062 8.5800781,2.498049 8.4416203,2.2737803 8.4433594,2.0371094 8.4444829,1.8830216 8.6219,1.5336911 8.8652344,1.2597656 9.1085687,0.98584026 9.3496094,0.80273438 9.3496094,0.80273438 Z" style="fill:#ffffff"/>
+  </g>
+</svg>

data/ximper_shell_notification_center.gresource.xml

@@ -6,6 +6,8 @@
     <file preprocess="xml-stripblanks">icons/scalable/actions/ximper-shell-notification-center-up-small-symbolic.svg</file>
     <file preprocess="xml-stripblanks">icons/scalable/actions/ximper-shell-notification-center-down-small-symbolic.svg</file>
     <file preprocess="xml-stripblanks">icons/scalable/actions/dark-mode-symbolic.svg</file>
+    <file preprocess="xml-stripblanks">icons/scalable/actions/caffeine-on-symbolic.svg</file>
+    <file preprocess="xml-stripblanks">icons/scalable/actions/caffeine-off-symbolic.svg</file>
 
     <file preprocess="xml-stripblanks">ui/notification_window.ui</file>
     <file preprocess="xml-stripblanks">ui/notification.ui</file>

src/controlCenter/widgets/quickSettings/quickSettings.vala

@@ -21,6 +21,9 @@ namespace XimperShellNotificationCenter.Widgets {
             case "command":
                 tile = new CommandTile (cfg);
                 break;
+            case "caffeine":
+                tile = new CaffeineTile (cfg);
+                break;
             default:
                 warning ("Unknown quick-settings tile: %s",
                          type_id);

src/controlCenter/widgets/quickSettings/tiles/caffeineTile.vala

+namespace XimperShellNotificationCenter.Widgets {
+    [DBus (name = "org.freedesktop.login1.Manager")]
+    interface Login1Manager : Object {
+        public abstract UnixInputStream inhibit (
+            string what, string who, string why, string mode)
+            throws GLib.Error;
+    }
+
+    public class CaffeineTile : QuickSettingsTile {
+        private Login1Manager ?login1 = null;
+        private int inhibit_fd = -1;
+
+        public CaffeineTile (Json.Object ?cfg) {
+            base ("display-brightness-symbolic",
+                  _("Caffeine"));
+            update_icon ();
+
+            try {
+                login1 = Bus.get_proxy_sync (BusType.SYSTEM,
+                    "org.freedesktop.login1",
+                    "/org/freedesktop/login1");
+            } catch (Error e) {
+                warning ("logind not available: %s", e.message);
+                set_visible (false);
+            }
+        }
+
+        private void update_icon () {
+            icon.set_from_icon_name (active
+                ? "caffeine-on-symbolic"
+                : "caffeine-off-symbolic");
+        }
+
+        public override void on_toggle () {
+            if (login1 == null) return;
+
+            if (active) {
+                release_inhibitor ();
+            } else {
+                acquire_inhibitor ();
+            }
+        }
+
+        private void acquire_inhibitor () {
+            try {
+                var stream = login1.inhibit (
+                    "idle",
+                    "ximper-shell-notification-center",
+                    _("Caffeine mode"),
+                    "block");
+                inhibit_fd = stream.fd;
+                // Prevent stream from closing fd on dispose
+                stream.set_close_fd (false);
+                active = true;
+                update_icon ();
+            } catch (Error e) {
+                warning ("Failed to inhibit idle: %s",
+                         e.message);
+            }
+        }
+
+        private void release_inhibitor () {
+            if (inhibit_fd >= 0) {
+                Posix.close (inhibit_fd);
+                inhibit_fd = -1;
+            }
+            active = false;
+            update_icon ();
+        }
+
+        public override void on_cc_visibility_change (bool visible) {
+        }
+    }
+}

src/meson.build

@@ -61,6 +61,7 @@ widget_sources = [
   'controlCenter/widgets/quickSettings/tiles/darkModeTile.vala',
   'controlCenter/widgets/quickSettings/tiles/powerProfilesTile.vala',
   'controlCenter/widgets/quickSettings/tiles/commandTile.vala',
+  'controlCenter/widgets/quickSettings/tiles/caffeineTile.vala',
 ]
 
 app_sources = [