WebUI status line Berry tapp for Wifi and Free Heap (#23358)

tasmota/berry/modules/webui_status/autoexec.be

@@ -0,0 +1,3 @@
+# rm Webui_Status.tapp; zip -j -0 Webui_Status.tapp webui_status/*
+import webui_status
+global._webui_status = webui_status

tasmota/berry/modules/webui_status/webui_status.be

@@ -0,0 +1,37 @@
+# display Wifi and Free Heap in the Web Status line
+class webui_status
+  static var HTTP_HEAD_STYLE_WIFI =
+    "<style>"
+    ".wifi{width:18px;height:18px;position:relative}"
+    ".arc{padding:0;position:absolute;border:2px solid transparent;border-radius:50%%;border-top-color:%s}"
+    ".a0{width:2px;height:3px;top:10px;left:11px}"
+    ".a1{width:6px;height:6px;top:7px;left:9px}"
+    ".a2{width:12px;height:12px;top:4px;left:6px}"
+    ".a3{width:18px;height:18px;top:1px;left:3px}"
+    ".arc.active{border-top-color:%s}"
+    "</style>"
+
+  def init()
+   tasmota.add_driver(self)
+  end
+
+  def remove()
+    tasmota.remove_driver(self)
+  end
+  def web_status_line_left()
+    import webserver
+    # display wifi
+    if tasmota.wifi('up')
+      webserver.content_send(format(self.HTTP_HEAD_STYLE_WIFI, tasmota.webcolor(2 #-COL_FORM-#), tasmota.webcolor(18 #-COL_TITLE-#)))
+      var rssi = tasmota.wifi('rssi')
+      webserver.content_send(format("<div class='wifi' title='RSSI %d%%, %d dBm' style='padding:0 2px 0 2px;'><div class='arc a3 %s'></div><div class='arc a2 %s'></div><div class='arc a1 %s'></div><div class='arc a0 active'></div></div>",
+                                    tasmota.wifi('quality'), rssi,
+                                    rssi >= -55 ? "active" : "",
+                                    rssi >= -70 ? "active" : "",
+                                    rssi >= -85 ? "active" : ""))
+    end
+    # display free heap
+    webserver.content_send(f"<span>&nbsp;{tasmota.memory('heap_free')}k</span>")
+   end
+end
+return webui_status()