gtk3/demos/gtk-demo/modelbutton.ui

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <!-- interface-requires gtk+ 3.6 -->
  <object class="GtkWindow" id="window1">
    <child type="titlebar">
      <object class="GtkHeaderBar">
        <property name="visible">1</property>
        <property name="show-close-button">1</property>
        <property name="title" translatable="yes">Model Button</property>
      </object>
    </child>
    <child>
      <object class="GtkBox">
        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="margin">80</property>
        <child>
          <object class="GtkMenuButton">
            <property name="visible">1</property>
            <property name="popover">thing_a</property>
            <child>
              <object class="GtkLabel">
                <property name="visible">1</property>
                <property name="label">Color</property>
                <property name="hexpand">1</property>
              </object>
            </child>
          </object>
        </child>
        <child>
          <object class="GtkMenuButton">
            <property name="visible">1</property>
            <property name="popover">thing_b</property>
            <child>
              <object class="GtkLabel">
                <property name="visible">1</property>
                <property name="label">Flavors</property>
                <property name="hexpand">1</property>
              </object>
            </child>
          </object>
        </child>
        <child>
          <object class="GtkMenuButton">
            <property name="visible">1</property>
            <property name="popover">thing_c</property>
            <child>
              <object class="GtkLabel">
                <property name="visible">1</property>
                <property name="label">Tools</property>
                <property name="hexpand">1</property>
              </object>
            </child>
          </object>
        </child>
      </object>
    </child>
  </object>
  <object class="GtkPopover" id="thing_a">
    <child>
      <object class="GtkBox">
        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="action-name">win.color</property>
            <property name="action-target">'red'</property>
            <property name="text">Red</property>
            <property name="inverted">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="action-name">win.color</property>
            <property name="action-target">'green'</property>
            <property name="text">Green</property>
            <property name="inverted">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="action-name">win.color</property>
            <property name="action-target">'blue'</property>
            <property name="text">Blue</property>
            <property name="inverted">1</property>
          </object>
        </child>
      </object>
    </child>
  </object>
  <object class="GtkPopover" id="thing_b">
    <child>
      <object class="GtkBox">
        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="action-name">win.chocolate</property>
            <property name="text">Chocolate</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="action-name">win.vanilla</property>
            <property name="text">Vanilla</property>
          </object>
        </child>
        <child>
          <object class="GtkSeparator">
            <property name="visible">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="action-name">win.sprinkles</property>
            <property name="text">Add Sprinkles</property>
          </object>
        </child>
      </object>
    </child>
  </object>
  <object class="GtkPopover" id="thing_c">
    <child>
      <object class="GtkBox">
        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="text">Hammer</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="text">Screwdriver</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
            <property name="visible">1</property>
            <property name="text">Drill</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
          </object>
        </child>
      </object>
    </child>
  </object>
</interface>