noctalia-plugin: bar widget, toolbar panel and tile, with Luau tests and a flake check

noctalia-plugin/shortcut.luau

@@ -0,0 +1,31 @@
+--!nonstrict
+-- valw control-center tile. Click: the control center closes, then a
+-- region shot (so it isn't in it). Right click: the toolbar panel.
+
+local PANEL = "elars/valw:toolbar"
+
+local function lastLine(text)
+  local last = ""
+  for line in string.gmatch(text or "", "[^\n]+") do
+    last = line
+  end
+  return last
+end
+
+-- Exit 3 is a cancel (Esc): not an error.
+local function report(result)
+  if result.exitCode ~= 0 and result.exitCode ~= 3 then
+    noctalia.notifyError("valw", lastLine(result.stderr))
+  end
+end
+
+shortcut.setLabel(noctalia.tr("tile.label"))
+shortcut.setIcon("camera", "camera")
+
+function onClick()
+  noctalia.runAsync("noctalia msg panel-close; sleep 0.3 && valw region", report)
+end
+
+function onRightClick()
+  noctalia.togglePanel(PANEL)
+end