QtWaylandClient: Pluginize window decorations.

Convert to a D-pointer, split between abstract base class and an implementation.

Also move implementation of the current built-in decoration to the "bradient"
plugin, named in glorious memory of the programmer-designed blue gradient that
will forever sear our eyeballs.

The decoration plugin may be specified using the environment variable
QT_WAYLAND_DECORATION.

Change-Id: Idc99ab06ae138ad299bad2b62b9595379bd007ab
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/plugins/decorations/bradient/bradient.json b/src/plugins/decorations/bradient/bradient.json
new file mode 100644
index 000000000..e1a5ef24f
--- /dev/null
+++ b/src/plugins/decorations/bradient/bradient.json
@@ -0,0 +1,3 @@
+{
+    "Keys": [ "bradient" ]
+}