<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="task" id="lockdown-single-app-mode" xml:lang="pt-BR">

  <info>
    <link type="guide" xref="user-settings#lockdown"/>
    <link type="guide" xref="sundry#session"/>
    <link type="seealso" xref="lockdown-printing"/>
    <link type="seealso" xref="lockdown-file-saving"/>
    <link type="seealso" xref="lockdown-repartitioning"/>
    <link type="seealso" xref="lockdown-command-line"/>
    <link type="seealso" xref="login-automatic"/>
    <link type="seealso" xref="session-custom"/>
    <link type="seealso" xref="session-user"/>

    <revision pkgversion="3.30" date="2019-02-08" status="review"/>

    <credit type="author copyright">
      <name>Matthias Clasen</name>
      <email>mclasen@redhat.com</email>
      <years>2014</years>
    </credit>
    <credit type="editor">
      <name>Jana Svarova</name>
      <email>jana.svarova@gmail.com</email>
        <years>2014</years>
    </credit>
    <credit type="editor">
      <name>Petr Kovar</name>
      <email>pknbe@volny.cz</email>
      <years>2019</years>
    </credit>
    <credit type="author">
      <name>Marek Suchánek</name>
      <email>msuchane@redhat.com</email>
      <years>2023</years>
    </credit>

    <include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
       
    <desc>Configure um sistema de aplicativo único no estilo de um terminal eletrônico.</desc>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Rafael Fontenelle</mal:name>
      <mal:email>rafaelff@gnome.org</mal:email>
      <mal:years>2017-2020</mal:years>
    </mal:credit>
  </info>

  <title>Configurando o modo de aplicativo único</title>

  <p>O modo de aplicativo único é um GNOME Shell modificado que configura o Shell como um terminal eletrônico interativo. O administrador bloqueia algum comportamento para tornar o ambiente padrão mais restritiva para os usuários, permitindo que eles se concentrem nos recursos selecionados.</p>

  <p>Configure o modo de aplicativo único para uma ampla variedade de funções em vários campos (da comunicação ao entretenimento ou à educação) e use-o como uma máquina de autoatendimento, gerenciador de eventos, ponto de registro e assim por diante.</p>

  <note style="tip">
    <p>Your distribution might provide the
    <link href="https://gitlab.gnome.org/GNOME/gnome-kiosk">GNOME Kiosk</link>
    session, which is usually available in the gnome-kiosk package. You can use
    it to configure single-application mode more easily. Otherwise,
    use the following procedure.</p>
  </note>

  <steps>
  <title>Configurar o modo de aplicativo único</title>
    <item>
      <p>Bloqueie as configurações para impedir a impressão, o acesso ao terminal etc.</p>
      <list type="disc">
        <item><p><link xref="lockdown-command-line"/></p></item>
        <item><p><link xref="lockdown-printing"/></p></item>
        <item><p><link xref="lockdown-file-saving"/></p></item>
        <item><p><link xref="lockdown-repartitioning"/></p></item>
      </list>
    </item>
    <item>
      <p>Configure início automático de sessão no arquivo <file>/etc/gdm/custom.conf</file> para o usuário.</p>
      <p>Veja <link xref="login-automatic"/> para mais informações.</p>
    </item>
    <item>
      <p>Create the following files with the listed content:</p>
      <terms>
        <item>
          <title>
            <file>/usr/share/applications/org.gnome.Kiosk.Script.desktop</file>
          </title>
<code>
[Desktop Entry]
Name=Kiosk
Type=Application
Exec=gnome-kiosk
</code>
        </item>
        <item>
          <title>
            <file>/usr/share/applications/org.gnome.Kiosk.WindowManager.desktop</file>
          </title>
<code>
[Desktop Entry]
Type=Application
Name=Mutter
Comment=Window manager
Exec=/usr/bin/mutter
Categories=GNOME;GTK;Core;
OnlyShowIn=GNOME;
NoDisplay=true
X-GNOME-Autostart-Phase=DisplayServer
X-GNOME-Provides=windowmanager;
X-GNOME-Autostart-Notify=true
X-GNOME-AutoRestart=false
X-GNOME-HiddenUnderSystemd=true
</code>
        </item>
        <item>
          <title>
            <file>/usr/share/gnome-session/sessions/gnome-kiosk.session</file>
          </title>
<code>
[GNOME Session]
Name=Kiosk
RequiredComponents=org.gnome.Kiosk.WindowManager;org.gnome.Kiosk.Script;
</code>
        </item>
        <item>
          <title>
            <file>/usr/share/X11/xorg.conf.d/20-gnome-kiosk.conf</file>
          </title>
<code>
Section "ServerFlags"
    Option "DontVTSwitch" "on"
EndSection
</code>
        </item>
        <item>
          <title>
            <file>/usr/share/xsessions/org.gnome.Kiosk.desktop</file>
          </title>
<code>
[Desktop Entry]
Name=Kiosk
Comment=Kiosk mode
Exec=/usr/bin/gnome-session --session=gnome-kiosk
DesktopNames=GNOME-Kiosk;GNOME;
</code>
        </item>
      </terms>
    </item>
    <item>
      <p>As the user that will open the single-application session,
      create the <file>/home/<var>user</var>/.local/bin/gnome-kiosk</file> file:</p>
<code>
[<var>user</var>]$ mkdir -p ~/.local/bin

[<var>user</var>]$ touch ~/.local/bin/gnome-kiosk
</code>
    </item>
    <item>
      <p>Edit the <file>/home/<var>user</var>/.local/bin/gnome-kiosk</file> file and enter
      the executable name of the application that you want to launch in single-application mode.</p>
      <p>For example, to launch the Firefox browser in single-application mode,
      enter the following content:</p>
<code>
#!/bin/sh

while true; do
    firefox --kiosk https://example.org
done
</code>
      <p>The <code>while true</code> loop ensures that the application restarts
      if it terminates for any reason.</p>
    </item>
    <item>
      <p>Make the file executable:</p>
<code>
[<var>user</var>]$ chmod +x ~/.local/bin/gnome-kiosk
</code>
    </item>
    <item>
      <p>If you created the file or its containing directories as a different
      user than the single-application user, such as root, ensure that the file
      has the correct permissions:</p>
<code>
# chown -R <var>user</var>:<var>group</var> ~<var>user</var>/.local
</code>
    </item>
    <item>
      <p>At the GNOME login screen, select the Kiosk session from the gear
      button menu and log in as the single-application user.</p>
    </item>
  </steps>

</page>
