Play Locally Stored "TV Show TRAILERS" (non addon, but using python from skin)

Hi, i start to learn a few basics, and want to share.

With that script and some xml editing every skin should be able to play locally stored TVShow Trailers .....
(could be used also on Movies , but you should check with condition - "String.IsEmpty(ListItem.Trailer)" as long as PlayMedia($INFO[ListItem.Trailer] works fine )

.... as long as they are saved in/as .mp4
              [*path*/(tvshow/movietitle=FOLDERNAME)/FOLDERNAME-trailer.mp4]

Quote:example for Shows >        \*whatever*\Bates Motel\Bates Motel-trailer.mp4
                                       \*whatever*\House of Cards (US)\House of Cards (US)-trailer.mp4

example for Movies >        \*whatever*\12 Years a Slave (2013)\12 Years a Slave (2013)-trailer.mp4
                                       \*whatever*\16 Uhr 50 ab Paddington (1961)\16 Uhr 50 ab Paddington (1961)-trailer.mp4

Create this python scrip and put it into your "skin/scripts" folder
checkexist.py

## -*- coding: utf-8 -*-

import xbmc

import xbmcvfs

import xbmcgui



trailerfilenamemp4 =  xbmc.getInfoLabel( "listitem.path" ) + xbmc.getInfoLabel( "listitem.FolderName" ) + "-trailer" + ".mp4"



if xbmcvfs.exists(trailerfilenamemp4):

    xbmc.executebuiltin( "SetProperty(trailer_avail,true,home)" )

else:

    pass

Now you can call it with

xbmc.RunScript(special://skin/scripts/checkexist.py)

Benefit:

If file found it'll write a window property to true, wich can be used for visible conditions.
So you can prefer local trailers and use a youtube search as fallback if you like (skinhelper/or other custom script needed)

Con:  - Limited to mp4 files only (as i have no idea how to script it with diff filetypes/suffixes)
        - im unsure how it works on mac OS, or using emby
        - untested on widgets

EXAMPLE for simple use without depending skinsettings

place script
/%yourskin ID%/scripts/checkexist.py

created include

<include name="check_local_trailer">

        <control type="button">

              <visible>false</visible>

              <onfocus>xbmc.RunScript(special://skin/scripts/checkexist.py)</onfocus> <!-- faster,than skinhelper check -->

              <onunfocus condition="!String.IsEmpty(Window(home).Property(trailer_avail))">ClearProperty(trailer_avail,home)</onunfocus>

        </control>

</include>

call the include on focused items in library

<focusedlayout width="**" height="**">

            <control type="group">

                 .

                 .

                <include>check_local_trailer</include>

                 .

                 .

             </control>

 </focusedlayout>

use playtrailer command (without actions or conditions)

PlayMedia($INFO[listitem.path]$INFO[ListItem.FolderName,,-trailer.mp4],1) <!-- windowed , if you prefer default fullscreen delete ",1" -->