root/data/resources/ui/image_page.ui

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <template class="ImagePage" parent="GtkBox">
    <child>
      <object class="AdwOverlaySplitView" id="split">
        <property name="show-sidebar" bind-source="flap_button" bind-property="active" bind-flags="sync-create|bidirectional">False</property>
        <property name="sidebar">
          <!-- Sidebar -->
          <object class="GtkBox">
            <property name="orientation">vertical</property>
            <property name="vexpand">True</property>
            <child>
              <object class="AdwHeaderBar">
                <property name="title-widget">
                  <object class="AdwWindowTitle">
                    <property name="title" translatable="yes">Tags</property>
                  </object>
                </property>
              </object>
            </child>
            <child>
              <object class="AdwBin" id="tags_window">
                <property name="vexpand">True</property>
              </object>
            </child>
            <child>
              <object class="GtkLabel" id="create_date">
                <style>
                  <class name="dim-label"/>
                </style>
                <property name="margin-top">10</property>
              </object>
            </child>
            <child>
              <object class="GtkButton" id="web_button">
                <property name="margin-top">10</property>
                <property name="label" translatable="yes">View on web</property>
              </object>
            </child>
          </object>
        </property>
        <property name="content">
          <!-- Main -->
          <object class="GtkBox">
            <property name="orientation">vertical</property>
            <child>
              <object class="AdwHeaderBar">

                <child type="start">
                  <object class="GtkButton" id="back">
                    <property name="icon-name">go-previous-symbolic</property>
                    <property name="tooltip-text" translatable="true">Go to Browse Page</property>
                    <property name="action-name">app.open-browse</property>
                  </object>
                </child>

                <child type="start">
                  <object class="GtkToggleButton" id="flap_button">
                    <property name="icon-name">sidebar-show-symbolic</property>
                    <property name="active">True</property>
                    <property name="tooltip-text" translatable="true">Toggle Sidebar</property>
                    <property name="visible" bind-source="ImagePage" bind-property="narrow" bind-flags="sync-create">False</property>
                  </object>
                </child>

                <child type="end">
                  <object class="GtkButton" id="download">
                    <property name="icon-name">document-save-symbolic</property>
                    <property name="tooltip-text" translatable="true">Download full size file</property>
                    <style>
                      <class name="suggested-action"/>
                    </style>
                  </object>
                </child>

                <!-- <property name="title-widget"> -->
                <!--   <object class="GtkBox"> -->
                <!--     <property name="orientation">horizontal</property> -->
                <!--     <child> -->
                <!--       <object class="GtkSearchEntry" id="search"> -->
                <!--         <property name="placeholder-text" translatable="true">Search...</property> -->
                <!--       </object> -->
                <!--     </child> -->
                <!--     <child> -->
                <!--       <object class="GtkButton" id="submit_search"> -->
                <!--         <property name="icon-name">system-search-symbolic</property> -->
                <!--         <property name="tooltip-text" translatable="true">Submit Search</property> -->
                <!--       </object> -->
                <!--     </child> -->
                <!--     <child> -->
                <!--       <object class="GtkButton" id="save_search"> -->
                <!--         <property name="icon-name">emblem-favorite-symbolic</property> -->
                <!--         <property name="tooltip-text" translatable="true">Save Search</property> -->
                <!--       </object> -->
                <!--     </child> -->
                <!--   </object> -->
                <!-- </property> -->
              </object>
            </child>
            <child>
              <object class="GtkScrolledWindow" id="window">
                <property name="hscrollbar-policy">automatic</property>
                <property name="vscrollbar-policy">automatic</property>
                <property name="hexpand">True</property>
                <property name="vexpand">True</property>
                <property name="width-request">240</property>
                <child>
                  <object class="AdwSpinner" id="spinner">
                    <property name="vexpand">False</property>
                    <property name="hexpand">False</property>
                    <property name="halign">center</property>
                    <property name="valign">center</property>
                    <property name="width-request">64</property>
                    <property name="height-request">64</property>
                  </object>
                </child>
              </object>
            </child>
          </object>
        </property>
      </object>
    </child>
  </template>
</interface>