Add port/route dropdown to sinks.

data/resources/resources.gresource.xml

@@ -10,6 +10,7 @@
     <file preprocess="xml-stripblanks" alias="gtk/sinkbox.ui">ui/sinkbox.ui</file>
     <file preprocess="xml-stripblanks" alias="gtk/outputbox.ui">ui/outputbox.ui</file>
     <file preprocess="xml-stripblanks" alias="gtk/profile-dropdown.ui">ui/profile-dropdown.ui</file>
+    <file preprocess="xml-stripblanks" alias="gtk/route-dropdown.ui">ui/route-dropdown.ui</file>
     <file preprocess="xml-stripblanks" alias="gtk/devicebox.ui">ui/devicebox.ui</file>
     <file preprocess="xml-stripblanks" alias="gtk/profilerow.ui">ui/profilerow.ui</file>
     <file>ui/levelbar.css</file>

data/resources/ui/route-dropdown.ui

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
+<interface>
+    <requires lib="gtk" version="4.0" />
+    <requires lib="Adw" version="1.0" />
+    <template class="PwRouteDropDown" parent="GtkWidget">
+        <property name="layout-manager">
+            <object class="GtkBinLayout" />
+        </property>
+        <child>
+            <object class="GtkDropDown" id="route_dropdown">
+                <property name="hexpand">0</property>
+                <property name="valign">center</property>
+                <style>
+                    <class name="suffixes" />
+                </style>
+            </object>
+        </child>
+    </template>
+</interface>

data/resources/ui/sinkbox.ui

@@ -8,6 +8,15 @@
             <object class="GtkBox">
                 <property name="orientation">horizontal</property>
                 <property name="spacing">6</property>
+                <child>
+                    <object class="GtkLabel" id="onlabel">
+                        <property name="label" translatable="yes">Port:</property>
+                    </object>
+                </child>
+                <child>
+                    <object class="PwRouteDropDown" id="route_dropdown">
+                    </object>
+                </child>
                 <child>
                     <object class="GtkToggleButton" id="default_sink_toggle">
                         <property name="hexpand">0</property>

src/backend/mod.rs

@@ -1,13 +1,21 @@
+mod paramavailability;
 mod pwchannelobject;
 mod manager;
 mod pwdeviceobject;
 mod pwprofileobject;
 mod pwnodemodel;
 mod pwnodeobject;
+mod pwrouteobject;
+mod routedirection;
+mod pwroutefiltermodel;
 
+pub use paramavailability::ParamAvailability;
 pub use pwchannelobject::PwChannelObject;
 pub use manager::PwvucontrolManager;
 pub use pwdeviceobject::PwDeviceObject;
-pub use pwprofileobject::{PwProfileObject, ProfileAvailability};
+pub use pwprofileobject::PwProfileObject;
 pub use pwnodemodel::PwNodeModel;
 pub use pwnodeobject::{PwNodeObject, NodeType};
+pub use pwrouteobject::PwRouteObject;
+pub use routedirection::RouteDirection;
+pub use pwroutefiltermodel::PwRouteFilterModel;

src/backend/paramavailability.rs

@@ -0,0 +1,18 @@
+#[derive(Debug, Copy, Clone, PartialEq, Eq, glib::Enum, Default)]
+#[enum_type(name = "ProfileAvailability")]
+pub enum ParamAvailability {
+    #[default]
+    Unknown,
+    No,
+    Yes
+}
+
+impl From<u32> for ParamAvailability {
+    fn from(value: u32) -> Self {
+        match value {
+            1 => ParamAvailability::No,
+            2 => ParamAvailability::Yes,
+            _ => ParamAvailability::Unknown,
+        }
+    }
+}