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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Creates a new `ComboBox`."><title>combo_box in cosmic::widget - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-aa0817cf.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="cosmic" data-themes="" data-resource-suffix="" data-rustdoc-version="1.90.0-nightly (3048886e5 2025-07-30)" data-channel="nightly" data-search-js="search-fa3e91e5.js" data-settings-js="settings-5514c975.js" ><script src="../../static.files/storage-68b7e25d.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-eebb9057.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-32bb7600.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../cosmic/index.html">cosmic</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">combo_<wbr>box</a></h2><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#example" title="Example">Example</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="index.html">In cosmic::<wbr>widget</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">cosmic</a>::<wbr><a href="index.html">widget</a></div><h1>Function <span class="fn">combo_box</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"></span></div><pre class="rust item-decl"><code>pub fn combo_box<'a, T, Message, Theme, Renderer>(
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state: &'a <a class="struct" href="combo_box/struct.State.html" title="struct cosmic::widget::combo_box::State">State</a><T>,
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placeholder: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>,
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selection: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&T</a>>,
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on_selected: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.Fn.html" title="trait core::ops::function::Fn">Fn</a>(T) -> Message + 'static,
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) -> <a class="struct" href="struct.ComboBox.html" title="struct cosmic::widget::ComboBox">ComboBox</a><'a, T, Message, Theme, Renderer><div class="where">where
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T: <a class="trait" href="../cctk/sctk/reexports/client/backend/smallvec/alloc/fmt/trait.Display.html" title="trait cosmic::cctk::sctk::reexports::client::backend::smallvec::alloc::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
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Theme: <a class="trait" href="combo_box/trait.Catalog.html" title="trait cosmic::widget::combo_box::Catalog">Catalog</a> + 'a,
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Renderer: <a class="trait" href="../iced/daemon/program/graphics/core/text/trait.Renderer.html" title="trait cosmic::iced::daemon::program::graphics::core::text::Renderer">Renderer</a>,</div></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Creates a new <a href="struct.ComboBox.html" title="struct cosmic::widget::ComboBox"><code>ComboBox</code></a>.</p>
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<p>Combo boxes display a dropdown list of searchable and selectable options.</p>
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<h2 id="example"><a class="doc-anchor" href="#example">§</a>Example</h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>iced::widget::combo_box;
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<span class="kw">struct </span>State {
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fruits: combo_box::State<Fruit>,
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favorite: <span class="prelude-ty">Option</span><Fruit>,
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}
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<span class="attr">#[derive(Debug, Clone)]
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</span><span class="kw">enum </span>Fruit {
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Apple,
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Orange,
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Strawberry,
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Tomato,
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}
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<span class="attr">#[derive(Debug, Clone)]
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</span><span class="kw">enum </span>Message {
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FruitSelected(Fruit),
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}
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<span class="kw">fn </span>view(state: <span class="kw-2">&</span>State) -> Element<<span class="lifetime">'_</span>, Message> {
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combo_box(
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<span class="kw-2">&</span>state.fruits,
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<span class="string">"Select your favorite fruit..."</span>,
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state.favorite.as_ref(),
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Message::FruitSelected
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)
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.into()
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}
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<span class="kw">fn </span>update(state: <span class="kw-2">&mut </span>State, message: Message) {
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<span class="kw">match </span>message {
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Message::FruitSelected(fruit) => {
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state.favorite = <span class="prelude-val">Some</span>(fruit);
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}
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}
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}
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<span class="kw">impl </span>std::fmt::Display <span class="kw">for </span>Fruit {
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<span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>std::fmt::Formatter<<span class="lifetime">'_</span>>) -> std::fmt::Result {
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f.write_str(<span class="kw">match </span><span class="self">self </span>{
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<span class="self">Self</span>::Apple => <span class="string">"Apple"</span>,
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<span class="self">Self</span>::Orange => <span class="string">"Orange"</span>,
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<span class="self">Self</span>::Strawberry => <span class="string">"Strawberry"</span>,
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<span class="self">Self</span>::Tomato => <span class="string">"Tomato"</span>,
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})
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}
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}</code></pre></div>
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</div></details></section></div></main></body></html> |