Add a MEDIA menu item type to the main menus.

This type allows you to add menu items that can call one of the media handlers.
For example you could add a menu item to show a particular web page or to play
a video using the internal player.

An example item to run MythBrowser

    <button>
        <type>WEBPAGE</type>
        <text>WebMail</text>
        <description>Show email</description>
        <action>MEDIA WebBrowser https://example.domain.com/signin/webmail/</action>
        <depends>mythbrowser</depends>
    </button>

An example to play a video file

    <button>
        <type>VIDEO</type>
        <text>Show Example Video</text>
        <description>Show an example video</description>
        <action>MEDIA Internal /media/videos/example.mpg/</action>
    </button>

mythtv/libs/libmythui/myththemedmenu.cpp

@@ -849,6 +849,14 @@ bool MythThemedMenu::handleAction(const QString &action, const QString &password
         QString rest = action.right(action.length() - 5);
         GetMythMainWindow()->JumpTo(rest, false);
     }
+    else if (action.left(6) == "MEDIA ")
+    {
+        // the format is MEDIA HANDLER URL
+        // TODO: allow spaces in the url
+        QStringList list = action.simplified().split(' ');
+        if (list.size() >= 3)
+            GetMythMainWindow()->HandleMedia(list[1], list[2]);
+    }
     else
     {
         m_selection = action;