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dioxus-mirror
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                <ol class="chapter"><li class="chapter-item expanded affix "><a href="../index.html">Introdução</a></li><li class="chapter-item expanded "><a href="../getting_started/index.html"><strong aria-hidden="true">1.</strong> Introdução Rápida as Plataformas</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../getting_started/desktop.html"><strong aria-hidden="true">1.1.</strong> Desktop</a></li><li class="chapter-item expanded "><a href="../getting_started/web.html"><strong aria-hidden="true">1.2.</strong> Web</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../getting_started/hot_reload.html"><strong aria-hidden="true">1.2.1.</strong> Hot Reload</a></li></ol></li><li class="chapter-item expanded "><a href="../getting_started/ssr.html"><strong aria-hidden="true">1.3.</strong> Renderização por Servidor</a></li><li class="chapter-item expanded "><a href="../getting_started/tui.html"><strong aria-hidden="true">1.4.</strong> Interface do Terminal</a></li><li class="chapter-item expanded "><a href="../getting_started/mobile.html"><strong aria-hidden="true">1.5.</strong> Móvel</a></li></ol></li><li class="chapter-item expanded "><a href="../describing_ui/index.html"><strong aria-hidden="true">2.</strong> Descrevendo a Interface do Usuário</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../describing_ui/special_attributes.html"><strong aria-hidden="true">2.1.</strong> Atributos Especiais</a></li><li class="chapter-item expanded "><a href="../describing_ui/components.html"><strong aria-hidden="true">2.2.</strong> Componentes</a></li><li class="chapter-item expanded "><a href="../describing_ui/component_props.html"><strong aria-hidden="true">2.3.</strong> Props</a></li><li class="chapter-item expanded "><a href="../describing_ui/component_children.html"><strong aria-hidden="true">2.4.</strong> Componente Filho</a></li></ol></li><li class="chapter-item expanded "><a href="../interactivity/index.html"><strong aria-hidden="true">3.</strong> Interatividade</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../interactivity/event_handlers.html"><strong aria-hidden="true">3.1.</strong> Manipuladores de Eventos</a></li><li class="chapter-item expanded "><a href="../interactivity/hooks.html"><strong aria-hidden="true">3.2.</strong> Hooks &amp; Estado de Componentes</a></li><li class="chapter-item expanded "><a href="../interactivity/user_input.html" class="active"><strong aria-hidden="true">3.3.</strong> Entradas do Usuário</a></li><li class="chapter-item expanded "><a href="../interactivity/sharing_state.html"><strong aria-hidden="true">3.4.</strong> Estado Compartilhado</a></li><li class="chapter-item expanded "><a href="../interactivity/custom_hooks.html"><strong aria-hidden="true">3.5.</strong> Hooks Personalizados</a></li><li class="chapter-item expanded "><a href="../interactivity/dynamic_rendering.html"><strong aria-hidden="true">3.6.</strong> Renderização Dinâmica</a></li><li class="chapter-item expanded "><a href="../interactivity/roteador.html"><strong aria-hidden="true">3.7.</strong> Roteamento</a></li></ol></li><li class="chapter-item expanded "><a href="../async/index.html"><strong aria-hidden="true">4.</strong> Assincronia</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../async/use_future.html"><strong aria-hidden="true">4.1.</strong> UseFuture</a></li><li class="chapter-item expanded "><a href="../async/use_coroutine.html"><strong aria-hidden="true">4.2.</strong> UseCoroutine</a></li><li class="chapter-item expanded "><a href="../async/spawn.html"><strong aria-hidden="true">4.3.</strong> Gerando Futures</a></li></ol></li><li class="chapter-item expanded "><a href="../best_practices/index.html"><strong aria-hidden="true">5.</strong> Práticas Recomendadas</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../best_practices/error_handling.html"><strong aria-hidden="true">5.1.</strong> Tratamento de erros</a></li><li class="chapter-item expanded "><a href="../best_practices/antipatterns.html"><strong aria-hidden="true">5.2.</strong> Antipadrões</a></li></ol></li><li class="chapter-item expanded "><a href="../publishing/index.html"><strong aria-hidden="true">6.</strong> Publicação</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../publishing/desktop.html"><strong aria-hidden="true">6.1.</strong> Desktop</a></li><li class="chapter-item expanded "><a href="../publishing/web.html"><strong aria-hidden="true">6.2.</strong> Web</a></li><li class="spacer"></li></ol></li><li class="chapter-item expanded "><a href="../custom_renderer/index.html"><strong aria-hidden="true">7.</strong> Renderizador Personalizado</a></li><li class="spacer"></li><li class="chapter-item expanded affix "><a href="../roadmap.html">Roteiro</a></li><li class="chapter-item expanded affix "><a href="../contributing.html">Contribuindo</a></li></ol>
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                        <h1 id="entradas-do-usuário"><a class="header" href="#entradas-do-usuário">Entradas do Usuário</a></h1>
<p>As interfaces geralmente precisam fornecer uma maneira de inserir dados: por exemplo, texto, números, caixas de seleção, etc. No Dioxus, há duas maneiras de trabalhar com a entrada do usuário.</p>
<h2 id="entradas-controladas"><a class="header" href="#entradas-controladas">Entradas Controladas</a></h2>
<p>Com entradas controladas, você fica diretamente responsável pelo estado da entrada. Isso lhe dá muita flexibilidade e facilita manter as coisas em sincronia. Por exemplo, é assim que você criaria uma entrada de texto controlada:</p>
<pre><pre class="playground"><code class="language-rust edition2018">
<span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>fn App(cx: Scope) -&gt; Element {
    let name = use_state(cx, || &quot;bob&quot;.to_string());

    cx.render(rsx! {
        input {
            // we tell the component what to render
            value: &quot;{name}&quot;,
            // and what to do when the value changes
            oninput: move |evt| name.set(evt.value.clone()),
        }
    })
}
<span class="boring">}
</span></code></pre></pre>
<p>Observe a flexibilidade - você pode:</p>
<ul>
<li>Exibir o mesmo conteúdo em outro elemento, e eles estarão em sincronia</li>
<li>Transformar a entrada toda vez que for modificada (por exemplo, para garantir que seja maiúscula)</li>
<li>Validar a entrada toda vez que ela mudar</li>
<li>Ter uma lógica personalizada acontecendo quando a entrada for alterada (por exemplo, solicitação de rede para preenchimento automático)</li>
<li>Alterar programaticamente o valor (por exemplo, um botão &quot;randomize&quot; que preenche a entrada com absurdos)</li>
</ul>
<h2 id="entradas-não-controladas"><a class="header" href="#entradas-não-controladas">Entradas não Controladas</a></h2>
<p>Como alternativa às entradas controladas, você pode simplesmente deixar a plataforma acompanhar os valores de entrada. Se não dissermos a uma entrada HTML qual conteúdo ela deve ter, ela poderá ser editada de qualquer maneira (isso está embutido na visualização da web). Essa abordagem pode ser mais eficiente, mas menos flexível. Por exemplo, é mais difícil manter a entrada sincronizada com outro elemento.</p>
<p>Como você não tem necessariamente o valor atual da entrada não controlada no estado, você pode acessá-lo ouvindo os eventos <code>oninput</code> (de maneira semelhante aos componentes controlados) ou, se a entrada for parte de um formulário, você pode acessar os dados do formulário nos eventos do formulário (por exemplo, <code>oninput</code> ou <code>onsubmit</code>):</p>
<pre><pre class="playground"><code class="language-rust edition2018">
<span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>fn App(cx: Scope) -&gt; Element {
    cx.render(rsx! {
        form {
            onsubmit: move |event| {
                println!(&quot;Submitted! {event:?}&quot;)
            },
            input { name: &quot;name&quot;, },
            input { name: &quot;age&quot;, },
            input { name: &quot;date&quot;, },
            input { r#type: &quot;submit&quot;, },
        }
    })
}
<span class="boring">}
</span></code></pre></pre>
<pre><code>Submitted! UiEvent { data: FormData { value: &quot;&quot;, values: {&quot;age&quot;: &quot;very old&quot;, &quot;date&quot;: &quot;1966&quot;, &quot;name&quot;: &quot;Fred&quot;} } }
</code></pre>

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