gnome-control-center/panels/default-apps/cc-default-apps-panel.ui

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <template class="CcDefaultAppsPanel" parent="CcPanel">
    <child type="titlebar">
      <object class="GtkHeaderBar">
        <property name="visible">False</property>
      </object>
    </child>

    <child type="content">
      <object class="AdwToolbarView">
        <property name="top-bar-style">raised</property>
        <child type="top">
          <object class="AdwHeaderBar">
            <property name="show-end-title-buttons">True</property>
            <property name="show-start-title-buttons" bind-source="CcDefaultAppsPanel" bind-property="folded" bind-flags="default|sync-create" />
            <child type="start">
              <object class="GtkButton">
                <property name="visible" bind-source="CcDefaultAppsPanel" bind-property="folded" bind-flags="default|sync-create" />
                <property name="icon-name">go-previous-symbolic</property>
                <property name="action-name">window.navigate</property>
                <property name="action-target">0</property> <!-- 0: ADW_NAVIGATION_DIRECTION_BACK -->
              </object>
            </child>
            <property name="title-widget">
              <object class="AdwWindowTitle" id="header_title">
                <property name="title" translatable="yes">Default Apps</property>
              </object>
            </property>
          </object>
        </child>

        <property name="content">
          <object class="AdwPreferencesPage">
            <child>
              <object class="AdwPreferencesGroup">
                <property name="title" translatable="yes">Links &amp;amp; Files</property>
                <property name="description" translatable="yes">Applications which are used to open common links and files.</property>
                <child>
                  <object class="CcDefaultAppsRow" id="web_row">
                    <property name="title" translatable="yes">_Web</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">x-scheme-handler/http</property>
                    <property name="filters">text/html;application/xhtml+xml;x-scheme-handler/https</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="mail_row">
                    <property name="title" translatable="yes">_Mail</property>
                    <property name="use_underline">True</property>
                    <property name="content-type">x-scheme-handler/mailto</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="calendar_row">
                    <property name="title" translatable="yes">_Calendar</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">text/calendar</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="music_row">
                    <property name="title" translatable="yes">M_usic</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">audio/x-vorbis+ogg</property>
                    <property name="filters">audio/*</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="video_row">
                    <property name="title" translatable="yes">_Video</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">video/x-ogm+ogg</property>
                    <property name="filters">video/*</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="photos_row">
                    <property name="title" translatable="yes">_Photos</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">image/jpeg</property>
                    <property name="filters">image/*</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="calls_row">
                    <property name="visible">False</property>
                    <property name="title" translatable="yes" comments="Translators: This is a telephone call">_Calls</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">x-scheme-handler/tel</property>
                  </object>
                </child>
                <child>
                  <object class="CcDefaultAppsRow" id="sms_row">
                    <property name="visible">False</property>
                    <property name="title" translatable="yes">_SMS</property>
                    <property name="use-underline">True</property>
                    <property name="content-type">x-scheme-handler/sms</property>
                  </object>
                </child>
              </object>
            </child>
          </object>
        </property>
      </object>
    </child>
  </template>
</interface>