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Context Item Add-ons

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Revision as of 17:55, 25 April 2020 by Basje (talk | contribs) (Accessing information about selected item)
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Context item add-ons allows the context menu in Kodi to be extended. Add-ons must provide the kodi.context.item extension point and a <menu> definition.

Example:

<extension point="kodi.context.item">
  <menu id="kodi.core.main">
    <item library="contextitem.py">
      <label>30000</label>
      <visible>true</visible>
    </item>
  </menu>
</extension>

The first <menu> element defines which top level menu to attach to. In core, there are two available: kodi.core.main and kodi.core.manage. Add-on may attach to menu defined by other add-ons as well. Next, the <item> element defines the action to add to the menu. library is the file to execute, <label> a string or an ID from the language file to show in the context menu. Each menu need to have unique library specified. Duplicate items are ignored.

<visible> (required) should contain a visibility expression and will determine when the item is be visible in the context menu.

This feature requires at least version 2.23.0 of the Python API (Jarvis), which should be specified in the Addon.xml#<requires> element:

<import addon="xbmc.python" version="2.23.0"/>

Note: Kodi v19 Matrix and later.

In Kodi v19 Matrix and later, it is possible to specify an optional args attribute to a context item. The contents of this attribute will be passed as an argument to the script specified in the library attribute. It can be accessed via sys.argv. The combination of args and library need to be unique. Duplicate combinations are ignored.

<extension point="kodi.context.item">
  <menu id="kodi.core.main">
    <item library="contextitem.py" args="command_arg">
      <label>30000</label>
      <visible>true</visible>
    </item>
  </menu>
</extension>

Note: Keep in mind that there is limited space in the context menu. Attaching context menu to an add-on will force the user to have all of them enabled at the same time. Consider using #submenus or a creating a separate add-on.


1 Submenus

<menu> and <item> elements may be mixed and nested to created submenus. Example:

<menu id="kodi.core.main">
  <menu>
    <label>My submenu</label>
    <item library="contextitem1.py">
      <label>30001</label>
      <visible>true</visible>
    </item>
    <item library="contextitem2.py">
      <label>30002</label>
      <visible>true</visible>
    </item>
    <menu>
      <label>Subsubmenu</label>
      <item library="contextitem3.py">
        <label>30003</label>
        <visible>true</visible>
      </item>
    </menu>
</menu>


2 Accessing information about selected item

The sys.listitem attribute contains a copy of the item the context menu was opened on. It is an instance of xbmcgui.ListItem. See http://mirrors.xbmc.org/docs/python-docs/16.x-jarvis/xbmcgui.html#ListItem for available properties.

Example script:

import sys
import xbmc

if __name__ == '__main__':
    message = "Clicked on '{}'".format(sys.listitem.getLabel())
    xbmcgui.Dialog().notification("Hello context items!", message)

3 v15 Isengard (deprecated)

Isengard, API version 2.20.0, does not support <menu> definition and can only define a single item as follows:

<extension point="kodi.context.item" library="addon.py">
  <item>
    <label>Hello World</label>
    <visible>!IsEmpty(ListItem.Genre)</visible>
    <parent>kodi.core.manage</parent>
  </item>
</extension>

This syntax is considered deprecated and will be removed in future versions.

Note: Both syntaxes are backwards and forward compatible. Add-ons may use both the old <item> and the new <menu> at the same time for comparability with v15 Isengard and v16 Jarvis.