/usr/share/dbus-1/interfaces/com.canonical.hud.xml is in hud 13.10.1+14.04.20140402-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | <?xml version="1.0" encoding="UTF-8"?>
<node name="/">
<interface name="com.canonical.hud">
<!-- Properties -->
<property name="OpenQueries" type="ao" access="read" />
<property name="Applications" type="a(so)" access="read">
<annotation name="org.qtproject.QtDBus.QtTypeName" value="QList<hud::common::NameObject>"/>
</property>
<!-- Functions -->
<method name="CreateQuery">
<!-- in -->
<arg type="s" name="query" direction="in" />
<!-- out -->
<arg type="o" name="queryObject" direction="out" />
<arg type="s" name="resultsName" direction="out" />
<arg type="s" name="appstackName" direction="out" />
<arg type="i" name="modelRevision" direction="out" />
</method>
<method name="RegisterApplication">
<!-- NOTE: If the application is already registered it won't return
an error, just the object path for that application -->
<!-- in -->
<arg type="s" name="id" direction="in" />
<!-- out -->
<arg type="o" name="appObject" direction="out" />
</method>
<!-- Legacy Query Interface, will be deprecated -->
<method name="StartQuery">
<!-- in -->
<arg type="s" name="query" direction="in" />
<arg type="i" name="entries" direction="in" />
<!-- out -->
<arg type="s" name="target" direction="out" />
<annotation name="org.qtproject.QtDBus.QtTypeName.Out1" value="QList<hud::common::Suggestion>"/>
<arg type="a(sssssv)" name="suggestions" direction="out" />
<arg type="v" name="querykey" direction="out" />
</method>
<method name="ExecuteQuery">
<arg type="v" name="key" direction="in" />
<arg type="u" name="timestamp" direction="in" />
</method>
<method name="CloseQuery">
<arg type="v" name="querykey" direction="in" />
</method>
<!-- Legacy Signals -->
<signal name="UpdatedQuery">
<arg type="s" name="target" direction="out" />
<annotation name="org.qtproject.QtDBus.QtTypeName.In1" value="QList<hud::common::Suggestion>"/>
<arg type="a(sssssv)" name="suggestions" direction="out" />
<arg type="v" name="querykey" direction="out" />
</signal>
<!-- End of interesting stuff -->
</interface>
</node>
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