Add auto-away feature for Linux X11

TODO.md

@@ -1,6 +1,9 @@
 # TODO
 
-- account can't see another's status message once it goes offline
+- mark accounts as offline when closing mirage
+- document new x11 dependnecy (auto-idle)
+- auto-idle for Windows and OSX 
+- open context menus centered on touch screens 
 - retrieve last seen time for offline members on hover/in profile
 - auto-away after a configurable idle time 
 - status based on process detection

mirage.pro

@@ -16,6 +16,10 @@ HEADERS   += src/utils.h src/clipboard.h submodules/hsluv-c/src/hsluv.h
 SOURCES   += src/main.cpp submodules/hsluv-c/src/hsluv.c
 TARGET     = mirage
 
+unix:!macx {
+    LIBS += -lX11 -lXss
+}
+
 
 # Custom CONFIG options
 

src/backend/matrix_client.py

@@ -1290,7 +1290,10 @@ class MatrixClient(nio.AsyncClient):
 
 
     async def set_presence(
-        self, presence: str, status_msg: Optional[str] = None,
+        self,
+        presence:   str,
+        status_msg: Optional[str] = None,
+        save:       bool          = True,
     ) -> None:
         """Set presence state for this account."""
 
@@ -1326,9 +1329,13 @@ class MatrixClient(nio.AsyncClient):
         if not account.presence_support:
             account.presence = Presence.State(presence)
 
+        if save:
+            account.save_presence = True
             await self.backend.saved_accounts.update(
                 self.user_id, presence=presence,
             )
+        else:
+            account.save_presence = False
 
         await super().set_presence(
             "offline" if presence == "invisible" else presence,

src/backend/models/items.py

@@ -143,6 +143,7 @@ class Account(ModelItem):
     # For some reason, Account cannot inherit Presence, because QML keeps
     # complaining type error on unknown file
     presence_support: bool           = False
+    save_presence:    bool           = True
     presence:         Presence.State = Presence.State.offline
     currently_active: bool           = False
     last_active_at:   datetime       = ZERO_DATE

src/backend/nio_callbacks.py

@@ -632,6 +632,7 @@ class NioCallbacks:
             account.presence_support = True
 
             # Save the presence for the next resume
+            if account.save_presence:
                 await self.client.backend.saved_accounts.update(
                     user_id  = ev.user_id,
                     presence = presence.presence.value if (

src/backend/user_files.py

@@ -248,6 +248,7 @@ class UISettings(JSONDataFile):
             "alertOnMentionForMsec": -1,
             "alertOnMessageForMsec": 0,
             "alwaysCenterRoomHeader": False,
+            "beUnavailableAfterSecondsIdle": 60 * 10,
             "compactMode": False,
             "clearRoomFilterOnEnter": True,
             "clearRoomFilterOnEscape": True,

src/clipboard.h

@@ -11,8 +11,7 @@
 #include <QObject>
 
 
-class Clipboard : public QObject
-{
+class Clipboard : public QObject {
     Q_OBJECT
     Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
     Q_PROPERTY(QString selection READ selection WRITE setSelection

src/gui/IdleManager.qml

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+import QtQuick 2.12
+import CppUtils 0.1
+import "."
+
+Timer {
+    readonly property ListModel accounts: ModelStore.get("accounts")
+    readonly property var accountsSet: new Set()
+
+
+    function setPresence(userId, presence) {
+        py.callClientCoro(userId, "set_presence", [presence, undefined, false])
+    }
+
+
+    interval: 1000
+    running: window.settings.beUnavailableAfterSecondsIdle > 0
+    repeat: true
+
+    onTriggered: {
+        let changes = false
+
+        const beUnavailable =
+            CppUtils.idleMilliseconds() / 1000 >=
+            window.settings.beUnavailableAfterSecondsIdle
+
+        for (let i = 0; i < accounts.count; i++) {
+            const account = accounts.get(i)
+
+            if (beUnavailable && account.presence === "online") {
+                setPresence(account.id, "unavailable")
+                accountsSet.add(account.id)
+                changes = true
+
+            } else if (! beUnavailable && accountsSet.has(account.id)) {
+                setPresence(account.id, "online")
+                accountsSet.delete(account.id)
+                changes = true
+            }
+        }
+
+        if (changes) accountsSetChanged()
+    }
+}

src/gui/UI.qml

@@ -33,6 +33,7 @@ Item {
     readonly property alias pageLoader: pageLoader
     readonly property alias pressAnimation: pressAnimation
     readonly property alias fontMetrics: fontMetrics
+    readonly property alias idleManager: idleManager
 
 
     function reloadSettings() {
@@ -96,6 +97,10 @@ Item {
         visible: false
     }
 
+    IdleManager {
+        id: idleManager
+    }
+
     LinearGradient {
         id: mainUIGradient
         visible: ! image.visible

src/utils.h

@@ -11,11 +11,14 @@
 #include <QObject>
 #include <QUuid>
 
+#ifdef Q_OS_UNIX
+#include <X11/extensions/scrnsaver.h>
+#endif
+
 #include "../submodules/hsluv-c/src/hsluv.h"
 
 
 class Utils : public QObject {
-
     Q_OBJECT
 
 public:
@@ -44,6 +47,29 @@ public slots:
         );
     }
 
+    int idleMilliseconds() const {
+        #ifdef Q_OS_DARWIN
+        return -1;
+
+        #elif defined(Q_OS_UNIX)
+        Display *display = XOpenDisplay(NULL);
+        if (! display) return -1;
+
+        XScreenSaverInfo *info = XScreenSaverAllocInfo();
+        XScreenSaverQueryInfo(display, DefaultRootWindow(display), info);
+        const int idle = info->idle;
+
+        XCloseDisplay(display);
+        return idle;
+
+        #elif defined(Q_OS_WINDOWS)
+        return -1;
+
+        #else
+        return -1;
+        #endif
+    }
+
 private:
     QLocale appLocale;
 };