add option for under-mouse placement

data/rc.xml.in

@@ -25,6 +25,10 @@
   <titlelayout>NLIMC</titlelayout>
 </theme>
 
+<placement>
+  <policy>Smart</policy>
+</placement>
+
 <desktops>
   <number>4</number>
   <names>

data/rc.xsd

@@ -42,6 +42,7 @@
             <xs:sequence>
                 <xs:element name="resistance" type="ob:resistance"/>
                 <xs:element name="focus" type="ob:focus"/>
+                <xs:element name="placement" type="ob:placement"/>
                 <xs:element name="theme" type="ob:theme"/>
                 <xs:element name="desktops" type="ob:desktops"/>
                 <xs:element name="resize" type="ob:resize"/>
@@ -75,6 +76,14 @@
             <xs:element name="raiseOnFocus" type="ob:yesorno"/>
         </xs:sequence>
     </xs:complexType>
+    <xs:complexType name="placement">
+        <xs:annotation>
+            <xs:documentation>defines how new windows are placed</xs:documentation>
+        </xs:annotation>
+        <xs:sequence>
+            <xs:element name="policy" type="ob:placementpolicy"/>
+        </xs:sequence>
+    </xs:complexType>
     <xs:complexType name="theme">
         <xs:sequence>
             <xs:element name="name" type="xs:string"/>
@@ -166,6 +175,12 @@
             <xs:enumeration value="no"/>
         </xs:restriction>
     </xs:simpleType>
+    <xs:simpleType name="placementpolicy">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="Smart"/>
+            <xs:enumeration value="UnderMouse"/>
+        </xs:restriction>
+    </xs:simpleType>
     <xs:simpleType name="position">
         <xs:restriction base="xs:string">
             <xs:enumeration value="TopLeft"/>