fix: a desktop Plasma makes after the layout has run gets the classroom's wallpaper

Tiny Pebbles came through the 0.2.2 upgrade on Plasma's own purple wallpaper: its desktop was containment 10, made after the layout had run (most likely the television arriving after a night-time reboot), with no wallpaper configured. The look and feel's fallback could not catch it, because it named a file and Plasma only accepts a wallpaper package there. The fallback is now the EkklesiaClassroom package, whose one image links to the classroom's picture. classroom-desktop-wallpaper, run before every plasmashell start, writes the picture into every desktop containment the file already has: found by plugin, never by number; panels and everything else byte for byte; a file that is already right not written at all. Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-09-29 18:05:44 -05:00
parent 530f6f6563
commit 7b4ac39cd2
6 changed files with 374 additions and 1 deletions
@@ -24,8 +24,18 @@ cursorTheme=breeze_cursors
 library=org.kde.breeze
 theme=Breeze

+# The picture a desktop gets when nothing has said which. That is every
+# desktop Plasma makes on its own after the layout has run: a television
+# switched on after the computer, a second screen, a new activity.
+#
+# A wallpaper PACKAGE NAME, not a file. Plasma's DefaultWallpaper looks it
+# up as wallpapers/<name> and nothing else. This line was a path until
+# 0.2.6.6, which Plasma cannot load as a package, so every such desktop
+# fell back to Plasma's own purple one — measured, and it is what Tiny
+# Pebbles showed after the 0.2.2 upgrade. The package is a directory whose
+# one image is a link to the classroom's file; see build-release.sh.
 [Wallpaper]
-Image=/usr/share/backgrounds/ekklesia/classroom-calm.png
+Image=EkklesiaClassroom

 [KSplash]
 Theme=None
@@ -37,6 +37,13 @@ var WALLPAPER = "/usr/share/backgrounds/ekklesia/classroom-calm.png";
 var PANEL_HEIGHT = 76;

 // The idle desktop: the wallpaper, and nothing on it.
+//
+// Only the desktops that exist right now. A screen that appears later —
+// the television switched on after a reboot at three in the morning, which
+// is what Tiny Pebbles had — gets a desktop Plasma makes without this
+// file. That one takes the look and feel's default wallpaper, which is the
+// classroom's package, and classroom-desktop-wallpaper writes it in by
+// name before the shell next starts.
 var screens = desktops();
 for (var i = 0; i < screens.length; i++) {
    var desktop = screens[i];
@@ -0,0 +1,12 @@
+{
+    "KPlugin": {
+        "Authors": [
+            {
+                "Name": "Ekklesia"
+            }
+        ],
+        "Id": "EkklesiaClassroom",
+        "License": "GPLv2+",
+        "Name": "Ekklesia Classroom"
+    }
+}