Conditional Visibility Custom Condition (1 Viewer)

[steve42]

Hi all,

I'm the developer of the FritzManager / FritzBox Manager plugin. The plugin detects new messages on the voicebox and I want to show a control (a button) on the home screen, which says "there are new messages, please click to show".

So I want to use conditional visibility and a adjusted home screen skin file, but I found no way to define a custom condition in my plugin.

This page MediaPortal1_Development/SkinArchitecture/skin_conditional_visibility - MediaPortal Manual Documentation referes to all "internal" conditions, but nothind is say about how to define new custom conditions.

Any hints? (If the answer will be "read the source code", then please include filename and line number.)

steve

 

[arion_p]

Define a new skin property (something like #FritzBox.NewMessageCount) in your plugin. To do this use:

GUIPropertyManager.SetProperty("#FritzBox.NewMessageCount", string.empty);

at plugin initialization. Then whenever the new message count changes use:

GUIPropertyManager.SetProperty("#FritzBox.NewMessageCount", newMessageCount.ToString());

where newMessageCount is a local (int I assume) variable holding the message count.
In the modified skin use the following condition:

<visible>!string.equals(#FritzBox.NewMessageCount,0)</visible>

 

[steve42]

unfortunately this isn't documented on the wiki page: MediaPortal1_Development/SkinArchitecture/skin_conditional_visibility - MediaPortal Manual Documentation

I will try to add some docu lines.

steve

 

[arion_p]

These have actually been documented here: MediaPortal1_Development/SkinArchitecture/MP_1_0_1-to-1_1_0 - MediaPortal Manual Documentation because 1.1.0 has not yet been released. If you add it in the official documentation skin designer will falsely assume these features are available in 1.0.2 and release a skin as being compatible with 1.0.2 when it will not be.

 

[steve42]

Hi arion,

<visible>!string.equals(#FritzBox.NewMessageCount,0)</visible>

it looks like that this expression has a problem with the "!" at the beginning. without negation everthing works as expected, but when I add
the ! the condition is always true.

Looks like a bug.

 

[arion_p]

Confirmed.
Mantis entry: 0002586: Negation (!) does not work with string.equals(...) - MediaPortal Bugtracker

And fixed in SVN 24482.