fix(desktop): queue KDE Connect actions instead of interrupting

A second action while one was in flight killed the first process, whose
onExited then fired under the new label and raised a false failure
notification. Actions are now queued and launched on exit, so each exit
reports under its own label. Also correct two comments that contradicted
the code: the pairing banner is only noticed on the on-open poll, and the
laptop glyph keys off the daemon's desktop type.

3 files changed, 26 insertions, 8 deletions

diff --git a/desktop/modules/kdeconnect/KdeConnectModule.qml b/desktop/modules/kdeconnect/KdeConnectModule.qml
index b7392b0..fa4fb52 100644
--- a/desktop/modules/kdeconnect/KdeConnectModule.qml
+++ b/desktop/modules/kdeconnect/KdeConnectModule.qml
@@ -103,12 +103,24 @@ Module {
 
     property Process notifyProc: Process {}
 
-    // One reusable action process. Actions are serialized; a second click
-    // while one runs replaces it rather than racing. A failure notifies.
+    // One reusable action process. Actions never interrupt one another: a
+    // second action while one runs is queued until the first exits, so each
+    // exit is reported under the label it was started with. Killing an
+    // in-flight process to start a new one would fire onExited with the new
+    // label and raise a false failure.
+    property var queuedAction: null
+
     function run(label, cmd) {
+        if (actProc.running) {
+            queuedAction = { label: label, cmd: cmd };
+            return;
+        }
+        launch(label, cmd);
+    }
+
+    function launch(label, cmd) {
         actProc.label = label;
         actProc.command = cmd;
-        actProc.running = false;
         actProc.running = true;
     }
 
@@ -120,6 +132,11 @@ Module {
                 mod.notify(actProc.label + " failed",
                            actErr.text.trim() || ("exited " + code));
             mod.refresh();
+            if (mod.queuedAction !== null) {
+                const q = mod.queuedAction;
+                mod.queuedAction = null;
+                mod.launch(q.label, q.cmd);
+            }
         }
     }
 
diff --git a/desktop/modules/kdeconnect/KdeConnectPage.qml b/desktop/modules/kdeconnect/KdeConnectPage.qml
index 89df597..d570125 100644
--- a/desktop/modules/kdeconnect/KdeConnectPage.qml
+++ b/desktop/modules/kdeconnect/KdeConnectPage.qml
@@ -38,8 +38,9 @@ Column {
         color: Theme.red
     }
 
-    // Incoming pairing requests. The property persists while the drawer is
-    // closed, so a request raised then is still here when it opens.
+    // Incoming pairing requests. The poll runs only while the drawer is open,
+    // so a request raised while it was closed is not noticed until it opens;
+    // the daemon keeps the request, so it is here then.
     Repeater {
         model: page.kc.requests
 
diff --git a/desktop/modules/kdeconnect/KdeConnectRow.qml b/desktop/modules/kdeconnect/KdeConnectRow.qml
index 0b45fb7..e4d4d93 100644
--- a/desktop/modules/kdeconnect/KdeConnectRow.qml
+++ b/desktop/modules/kdeconnect/KdeConnectRow.qml
@@ -12,9 +12,9 @@
 import QtQuick
 import "../.."
 
-// One KDE Connect device. The type glyph is the phone for anything that is
-// not a laptop or desktop, since the daemon's type strings are not a closed
-// set.
+// One KDE Connect device. The type glyph is a laptop only for a device the
+// daemon reports as "desktop" (which is how it reports laptops too), and a
+// phone for anything else, since the type strings are not a closed set.
 Rectangle {
     id: row