add method channel.Current to get the current channel

Author: flensrocker

Diff for: README

@@ -83,6 +83,9 @@ Interface "channel"
 - get count of channels
   vdr-dbus-send.sh /Channels channel.Count
 
+- get current channel
+  vdr-dbus-send.sh /Channels channel.Current
+
 - get channels between from_index and to_index
   vdr-dbus-send.sh /Channels channel.GetFromTo int32:from_index int32:to_index
 

Diff for: channel.c

@@ -3,6 +3,7 @@
 #include "helper.h"
 
 #include <vdr/channels.h>
+#include <vdr/device.h>
 
 
 namespace cDBusChannelsHelper
@@ -15,6 +16,10 @@ namespace cDBusChannelsHelper
     "    <method name=\"Count\">\n"
     "      <arg name=\"count\"        type=\"i\" direction=\"out\"/>\n"
     "    </method>\n"
+    "    <method name=\"Current\">\n"
+    "      <arg name=\"number\"       type=\"i\" direction=\"out\"/>\n"
+    "      <arg name=\"text\"         type=\"s\" direction=\"out\"/>\n"
+    "    </method>\n"
     "    <method name=\"GetFromTo\">\n"
     "      <arg name=\"from_index\"   type=\"i\" direction=\"in\"/>\n"
     "      <arg name=\"to_index\"     type=\"i\" direction=\"in\"/>\n"
@@ -56,6 +61,34 @@ namespace cDBusChannelsHelper
     g_dbus_method_invocation_return_value(Invocation, g_variant_new("(i)", channels->Count()));
   }
 
+  static void Current(cDBusObject *Object, GVariant *Parameters, GDBusMethodInvocation *Invocation)
+  {
+    int number = cDevice::CurrentChannel();
+    cString text = "";
+    const cChannel* currentChannel = NULL;
+#if VDRVERSNUM > 20300
+    LOCK_CHANNELS_READ;
+    const cChannels *channels = Channels;
+    currentChannel = channels->GetByNumber(number);
+#else
+    currentChannel = Channels.GetByNumber(number);
+#endif
+    if (currentChannel != NULL) {
+       text = currentChannel->ToText();
+       int len = strlen(*text);
+       if ((len > 0) && ((*text)[len - 1] == '\n'))
+          text.Truncate(-1);
+       cDBusHelper::ToUtf8(text);
+       }
+
+    GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE("(is)"));
+    g_variant_builder_add(builder, "i", number);
+    g_variant_builder_add(builder, "s", *text);
+
+    g_dbus_method_invocation_return_value(Invocation, g_variant_builder_end(builder));
+    g_variant_builder_unref(builder);
+  }
+
   static void GetFromTo(cDBusObject *Object, GVariant *Parameters, GDBusMethodInvocation *Invocation)
   {
     gint32 from_index = -1;
@@ -163,6 +196,7 @@ cDBusChannels::cDBusChannels(void)
 :cDBusObject("/Channels", cDBusChannelsHelper::_xmlNodeInfo)
 {
   AddMethod("Count", cDBusChannelsHelper::Count);
+  AddMethod("Current", cDBusChannelsHelper::Current);
   AddMethod("GetFromTo", cDBusChannelsHelper::GetFromTo);
   AddMethod("List", cDBusChannelsHelper::List);
 }

Diff for: dbus2vdr.c

@@ -37,7 +37,7 @@
 #include "avahi-helper.h"
 
 
-static const char *VERSION        = "26";
+static const char *VERSION        = "27";
 static const char *DESCRIPTION    = trNOOP("control vdr via D-Bus");
 static const char *MAINMENUENTRY  = NULL;