feat: add a setting to stay quiet while the camera is in use

src/agent/bubblecontroller.cpp

@@ -120,7 +120,7 @@ void BubbleController::failed(const QString &reason, qint64 lockout)
     if (reason == u"camera-busy") {
         // A video call, most likely. The daemon starts no scan then, so this
         // may come with nothing on screen yet.
-        if (!enabled()) {
+        if (!enabled() || m_config->quietWhenCameraBusy()) {
             dismiss();
             return;
         }

src/agent/userconfig.cpp

@@ -39,6 +39,7 @@ void UserConfig::load()
     m_bubble = kv.boolean(QStringLiteral("Bubble"), true);
     m_bubbleStyle = kv.value(QStringLiteral("BubbleStyle"), QStringLiteral("full")) == u"minimal" ? QStringLiteral("minimal") : QStringLiteral("full");
     m_bubbleForPrompts = kv.boolean(QStringLiteral("BubbleForPrompts"), true);
+    m_quietWhenCameraBusy = kv.boolean(QStringLiteral("QuietWhenCameraBusy"), false);
     const QString speed = kv.value(QStringLiteral("AnimationSpeed"), QStringLiteral("normal"));
     // The durations in the code are brisk, like on a phone. On a big screen
     // they read better a little longer, so normal stretches them.

src/agent/userconfig.h

@@ -79,6 +79,12 @@ public:
     {
         return m_bubbleForPrompts;
     }
+    // No bubble at all while another program has the camera (a video call).
+    // Off: the bubble shows a camera with a line through it.
+    bool quietWhenCameraBusy() const
+    {
+        return m_quietWhenCameraBusy;
+    }
     // How long the bubble's animations take, as a multiple of the durations
     // in the code: the animation speed setting (fast 1, normal 1.3,
     // slow 2).
@@ -106,6 +112,7 @@ private:
     bool m_bubble = true;
     QString m_bubbleStyle = QStringLiteral("full");
     bool m_bubbleForPrompts = true;
+    bool m_quietWhenCameraBusy = false;
     qreal m_pace = 1.3;
     QString m_styleOverride;
 };

src/daemon/server.cpp

@@ -486,8 +486,8 @@ void Server::handleVerify(Client *client, const QJsonObject &request)
     }
 
     // Another program has the camera, a video call most likely. No scan
-    // starts: the bubble shows a camera with a line through it, and the
-    // password is asked for at once.
+    // starts: the bubble shows a camera with a line through it, or nothing
+    // if the user wants it quiet, and the password is asked for at once.
     if (Camera::inUse(s.camera)) {
         qInfo("scan for %s (%s): the camera is in use", qPrintable(System::nameOf(uid)), qPrintable(purpose));
         broadcast(uid, {{QStringLiteral("event"), QStringLiteral("scan")},

src/lib/menu.sh

@@ -322,6 +322,7 @@ FU_SETTINGS=(
 	"user|BubbleStyle|choice|full|Style|full,minimal|Bubble"
 	"user|AnimationSpeed|choice|normal|Animation speed|slow,normal,fast|Bubble"
 	"user|BubbleForPrompts|bool|yes|Also for sudo and admin prompts||Bubble"
+	"user|QuietWhenCameraBusy|bool|no|Quiet while the camera is in use||Bubble"
 )
 
 # fu_setting_help <Key> <value>
@@ -363,6 +364,7 @@ fu_setting_help() {
 		BubbleStyle:*)      fu_msg "An island with a face that looks around, then rings and a tick." ;;
 		AnimationSpeed:*)   fu_msg "How fast the bubble moves." ;;
 		BubbleForPrompts:*) fu_msg "Shows the bubble when sudo or an admin prompt scans your face, too." ;;
+		QuietWhenCameraBusy:*) fu_msg "When another app uses the camera, for example in a video call, no bubble shows and you type your password as usual. Off: the bubble shows a camera with a line through it." ;;
 	esac
 }