<!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="Source of the Rust file `map_gui&#x2F;src&#x2F;tools&#x2F;navigate.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>navigate.rs - source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css"  id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings" ></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">&#9776;</div><a href='../../../map_gui/index.html'><div class='logo-container rust-logo'><img src='../../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../../wheel.svg"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1">  1</span>
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</pre><pre class="rust"><code><span class="kw">use</span> <span class="ident">std::collections::HashSet</span>;

<span class="kw">use</span> <span class="ident">map_model::RoadID</span>;
<span class="kw">use</span> <span class="ident">widgetry</span>::{
    <span class="ident">Autocomplete</span>, <span class="ident">Color</span>, <span class="ident">Drawable</span>, <span class="ident">EventCtx</span>, <span class="ident">GeomBatch</span>, <span class="ident">GfxCtx</span>, <span class="ident">Key</span>, <span class="ident">Line</span>, <span class="ident">Outcome</span>, <span class="ident">Panel</span>, <span class="ident">State</span>,
    <span class="ident">Text</span>, <span class="ident">Transition</span>, <span class="ident">Widget</span>,
};

<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::tools::grey_out_map</span>;
<span class="kw">use</span> <span class="kw">crate</span>::{<span class="ident">AppLike</span>, <span class="ident">ID</span>};

<span class="comment">// TODO Canonicalize names, handling abbreviations like east/e and street/st</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Navigator</span> {
    <span class="ident">panel</span>: <span class="ident">Panel</span>,
}

<span class="kw">impl</span> <span class="ident">Navigator</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new_state</span><span class="op">&lt;</span><span class="ident">A</span>: <span class="ident">AppLike</span> <span class="op">+</span> <span class="lifetime">&#39;static</span><span class="op">&gt;</span>(<span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">EventCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="ident">A</span>) -&gt; <span class="ident">Box</span><span class="op">&lt;</span><span class="kw">dyn</span> <span class="ident">State</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span><span class="op">&gt;</span> {
        <span class="ident">Box::new</span>(<span class="ident">Navigator</span> {
            <span class="ident">panel</span>: <span class="ident">Panel::new_builder</span>(<span class="ident">Widget::col</span>(<span class="macro">vec!</span>[
                <span class="ident">Widget::row</span>(<span class="macro">vec!</span>[
                    <span class="ident">Line</span>(<span class="string">&quot;Enter a street name&quot;</span>).<span class="ident">small_heading</span>().<span class="ident">into_widget</span>(<span class="ident">ctx</span>),
                    <span class="ident">ctx</span>.<span class="ident">style</span>().<span class="ident">btn_close_widget</span>(<span class="ident">ctx</span>),
                ]),
                <span class="ident">Autocomplete::new_widget</span>(
                    <span class="ident">ctx</span>,
                    <span class="ident">app</span>.<span class="ident">map</span>()
                        .<span class="ident">all_roads</span>()
                        .<span class="ident">iter</span>()
                        .<span class="ident">map</span>(<span class="op">|</span><span class="ident">r</span><span class="op">|</span> (<span class="ident">r</span>.<span class="ident">get_name</span>(<span class="ident">app</span>.<span class="ident">opts</span>().<span class="ident">language</span>.<span class="ident">as_ref</span>()), <span class="ident">r</span>.<span class="ident">id</span>))
                        .<span class="ident">collect</span>(),
                    <span class="number">10</span>,
                )
                .<span class="ident">named</span>(<span class="string">&quot;street&quot;</span>),
                <span class="ident">ctx</span>.<span class="ident">style</span>()
                    .<span class="ident">btn_outline</span>
                    .<span class="ident">text</span>(<span class="string">&quot;Search by business name or address&quot;</span>)
                    .<span class="ident">hotkey</span>(<span class="ident">Key::Tab</span>)
                    .<span class="ident">build_def</span>(<span class="ident">ctx</span>),
            ]))
            .<span class="ident">build</span>(<span class="ident">ctx</span>),
        })
    }
}

<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">A</span>: <span class="ident">AppLike</span> <span class="op">+</span> <span class="lifetime">&#39;static</span><span class="op">&gt;</span> <span class="ident">State</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">Navigator</span> {
    <span class="kw">fn</span> <span class="ident">event</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">EventCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">A</span>) -&gt; <span class="ident">Transition</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span> {
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Outcome::Clicked</span>(<span class="ident">x</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">event</span>(<span class="ident">ctx</span>) {
            <span class="kw">match</span> <span class="ident">x</span>.<span class="ident">as_ref</span>() {
                <span class="string">&quot;close&quot;</span> =&gt; {
                    <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
                }
                <span class="string">&quot;Search by business name or address&quot;</span> =&gt; {
                    <span class="kw">return</span> <span class="ident">Transition::Replace</span>(<span class="ident">SearchBuildings::new_state</span>(<span class="ident">ctx</span>, <span class="ident">app</span>));
                }
                <span class="kw">_</span> =&gt; <span class="macro">unreachable!</span>(),
            }
        }
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">roads</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">autocomplete_done</span>(<span class="string">&quot;street&quot;</span>) {
            <span class="kw">if</span> <span class="ident">roads</span>.<span class="ident">is_empty</span>() {
                <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
            }
            <span class="kw">return</span> <span class="ident">Transition::Replace</span>(<span class="ident">CrossStreet::new_state</span>(<span class="ident">ctx</span>, <span class="ident">app</span>, <span class="ident">roads</span>));
        }

        <span class="kw">if</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">clicked_outside</span>(<span class="ident">ctx</span>) {
            <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
        }

        <span class="ident">Transition::Keep</span>
    }

    <span class="kw">fn</span> <span class="ident">draw</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">g</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">GfxCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="ident">A</span>) {
        <span class="ident">grey_out_map</span>(<span class="ident">g</span>, <span class="ident">app</span>);
        <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">draw</span>(<span class="ident">g</span>);
    }
}

<span class="kw">struct</span> <span class="ident">CrossStreet</span> {
    <span class="ident">first</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span>,
    <span class="ident">panel</span>: <span class="ident">Panel</span>,
    <span class="ident">draw</span>: <span class="ident">Drawable</span>,
}

<span class="kw">impl</span> <span class="ident">CrossStreet</span> {
    <span class="kw">fn</span> <span class="ident">new_state</span><span class="op">&lt;</span><span class="ident">A</span>: <span class="ident">AppLike</span> <span class="op">+</span> <span class="lifetime">&#39;static</span><span class="op">&gt;</span>(
        <span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">EventCtx</span>,
        <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="ident">A</span>,
        <span class="ident">first</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span>,
    ) -&gt; <span class="ident">Box</span><span class="op">&lt;</span><span class="kw">dyn</span> <span class="ident">State</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">app</span>.<span class="ident">map</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cross_streets</span> <span class="op">=</span> <span class="ident">HashSet::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">batch</span> <span class="op">=</span> <span class="ident">GeomBatch::new</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">first</span> {
            <span class="kw">let</span> <span class="ident">road</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_r</span>(<span class="kw-2">*</span><span class="ident">r</span>);
            <span class="ident">batch</span>.<span class="ident">push</span>(<span class="ident">Color::RED</span>, <span class="ident">road</span>.<span class="ident">get_thick_polygon</span>());
            <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> [<span class="ident">road</span>.<span class="ident">src_i</span>, <span class="ident">road</span>.<span class="ident">dst_i</span>] {
                <span class="kw">for</span> <span class="ident">cross</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">map</span>.<span class="ident">get_i</span>(<span class="ident">i</span>).<span class="ident">roads</span> {
                    <span class="ident">cross_streets</span>.<span class="ident">insert</span>(<span class="kw-2">*</span><span class="ident">cross</span>);
                }
            }
        }
        <span class="comment">// Roads share intersections, so of course there&#39;ll be overlap here.</span>
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">first</span> {
            <span class="ident">cross_streets</span>.<span class="ident">remove</span>(<span class="ident">r</span>);
        }

        <span class="ident">Box::new</span>(<span class="ident">CrossStreet</span> {
            <span class="ident">panel</span>: <span class="ident">Panel::new_builder</span>(<span class="ident">Widget::col</span>(<span class="macro">vec!</span>[
                <span class="ident">Widget::row</span>(<span class="macro">vec!</span>[
                    {
                        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">txt</span> <span class="op">=</span> <span class="ident">Text::from</span>(<span class="ident">Line</span>(<span class="string">&quot;What cross street?&quot;</span>).<span class="ident">small_heading</span>());
                        <span class="comment">// TODO This isn&#39;t so clear...</span>
                        <span class="ident">txt</span>.<span class="ident">add_line</span>(<span class="macro">format!</span>(
                            <span class="string">&quot;(Or just quit to go to {})&quot;</span>,
                            <span class="ident">map</span>.<span class="ident">get_r</span>(<span class="ident">first</span>[<span class="number">0</span>]).<span class="ident">get_name</span>(<span class="ident">app</span>.<span class="ident">opts</span>().<span class="ident">language</span>.<span class="ident">as_ref</span>()),
                        ));
                        <span class="ident">txt</span>.<span class="ident">into_widget</span>(<span class="ident">ctx</span>)
                    },
                    <span class="ident">ctx</span>.<span class="ident">style</span>().<span class="ident">btn_close_widget</span>(<span class="ident">ctx</span>),
                ]),
                <span class="ident">Autocomplete::new_widget</span>(
                    <span class="ident">ctx</span>,
                    <span class="ident">cross_streets</span>
                        .<span class="ident">into_iter</span>()
                        .<span class="ident">map</span>(<span class="op">|</span><span class="ident">r</span><span class="op">|</span> (<span class="ident">map</span>.<span class="ident">get_r</span>(<span class="ident">r</span>).<span class="ident">get_name</span>(<span class="ident">app</span>.<span class="ident">opts</span>().<span class="ident">language</span>.<span class="ident">as_ref</span>()), <span class="ident">r</span>))
                        .<span class="ident">collect</span>(),
                    <span class="number">10</span>,
                )
                .<span class="ident">named</span>(<span class="string">&quot;street&quot;</span>),
            ]))
            .<span class="ident">build</span>(<span class="ident">ctx</span>),
            <span class="ident">first</span>,
            <span class="ident">draw</span>: <span class="ident">ctx</span>.<span class="ident">upload</span>(<span class="ident">batch</span>),
        })
    }
}

<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">A</span>: <span class="ident">AppLike</span> <span class="op">+</span> <span class="lifetime">&#39;static</span><span class="op">&gt;</span> <span class="ident">State</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">CrossStreet</span> {
    <span class="kw">fn</span> <span class="ident">event</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">EventCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">A</span>) -&gt; <span class="ident">Transition</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">app</span>.<span class="ident">map</span>();

        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Outcome::Clicked</span>(<span class="ident">x</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">event</span>(<span class="ident">ctx</span>) {
            <span class="kw">match</span> <span class="ident">x</span>.<span class="ident">as_ref</span>() {
                <span class="string">&quot;close&quot;</span> =&gt; {
                    <span class="comment">// Just warp to somewhere on the first road</span>
                    <span class="kw">let</span> <span class="ident">pt</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_r</span>(<span class="self">self</span>.<span class="ident">first</span>[<span class="number">0</span>]).<span class="ident">center_pts</span>.<span class="ident">middle</span>();
                    <span class="kw">return</span> <span class="ident">Transition::Replace</span>(<span class="ident">app</span>.<span class="ident">make_warper</span>(
                        <span class="ident">ctx</span>,
                        <span class="ident">pt</span>,
                        <span class="prelude-val">Some</span>(<span class="ident">ctx</span>.<span class="ident">canvas</span>.<span class="ident">settings</span>.<span class="ident">min_zoom_for_detail</span>),
                        <span class="prelude-val">None</span>,
                    ));
                }
                <span class="kw">_</span> =&gt; <span class="macro">unreachable!</span>(),
            }
        }
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">roads</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">autocomplete_done</span>(<span class="string">&quot;street&quot;</span>) {
            <span class="comment">// Find the best match</span>
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">found</span> <span class="op">=</span> <span class="prelude-val">None</span>;
            <span class="lifetime">&#39;OUTER</span>: <span class="kw">for</span> <span class="ident">r1</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">first</span> {
                <span class="kw">let</span> <span class="ident">r1</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_r</span>(<span class="kw-2">*</span><span class="ident">r1</span>);
                <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> [<span class="ident">r1</span>.<span class="ident">src_i</span>, <span class="ident">r1</span>.<span class="ident">dst_i</span>] {
                    <span class="kw">if</span> <span class="ident">map</span>.<span class="ident">get_i</span>(<span class="ident">i</span>).<span class="ident">roads</span>.<span class="ident">iter</span>().<span class="ident">any</span>(<span class="op">|</span><span class="ident">r2</span><span class="op">|</span> <span class="ident">roads</span>.<span class="ident">contains</span>(<span class="ident">r2</span>)) {
                        <span class="ident">found</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">i</span>);
                        <span class="kw">break</span> <span class="lifetime">&#39;OUTER</span>;
                    }
                }
            }
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">i</span>) <span class="op">=</span> <span class="ident">found</span> {
                <span class="kw">let</span> <span class="ident">pt</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_i</span>(<span class="ident">i</span>).<span class="ident">polygon</span>.<span class="ident">center</span>();
                <span class="kw">return</span> <span class="ident">Transition::Replace</span>(<span class="ident">app</span>.<span class="ident">make_warper</span>(
                    <span class="ident">ctx</span>,
                    <span class="ident">pt</span>,
                    <span class="prelude-val">Some</span>(<span class="ident">ctx</span>.<span class="ident">canvas</span>.<span class="ident">settings</span>.<span class="ident">min_zoom_for_detail</span>),
                    <span class="prelude-val">Some</span>(<span class="ident">ID::Intersection</span>(<span class="ident">i</span>)),
                ));
            } <span class="kw">else</span> {
                <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
            }
        }

        <span class="kw">if</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">clicked_outside</span>(<span class="ident">ctx</span>) {
            <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
        }

        <span class="ident">Transition::Keep</span>
    }

    <span class="kw">fn</span> <span class="ident">draw</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">g</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">GfxCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="ident">A</span>) {
        <span class="ident">g</span>.<span class="ident">redraw</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">draw</span>);
        <span class="ident">grey_out_map</span>(<span class="ident">g</span>, <span class="ident">app</span>);
        <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">draw</span>(<span class="ident">g</span>);
    }
}

<span class="kw">struct</span> <span class="ident">SearchBuildings</span> {
    <span class="ident">panel</span>: <span class="ident">Panel</span>,
}

<span class="kw">impl</span> <span class="ident">SearchBuildings</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new_state</span><span class="op">&lt;</span><span class="ident">A</span>: <span class="ident">AppLike</span> <span class="op">+</span> <span class="lifetime">&#39;static</span><span class="op">&gt;</span>(<span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">EventCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="ident">A</span>) -&gt; <span class="ident">Box</span><span class="op">&lt;</span><span class="kw">dyn</span> <span class="ident">State</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span><span class="op">&gt;</span> {
        <span class="ident">Box::new</span>(<span class="ident">SearchBuildings</span> {
            <span class="ident">panel</span>: <span class="ident">Panel::new_builder</span>(<span class="ident">Widget::col</span>(<span class="macro">vec!</span>[
                <span class="ident">Widget::row</span>(<span class="macro">vec!</span>[
                    <span class="ident">Line</span>(<span class="string">&quot;Enter a business name or address&quot;</span>)
                        .<span class="ident">small_heading</span>()
                        .<span class="ident">into_widget</span>(<span class="ident">ctx</span>),
                    <span class="ident">ctx</span>.<span class="ident">style</span>().<span class="ident">btn_close_widget</span>(<span class="ident">ctx</span>),
                ]),
                <span class="ident">Autocomplete::new_widget</span>(
                    <span class="ident">ctx</span>,
                    <span class="ident">app</span>.<span class="ident">map</span>()
                        .<span class="ident">all_buildings</span>()
                        .<span class="ident">iter</span>()
                        .<span class="ident">flat_map</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> {
                            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">results</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
                            <span class="kw">if</span> <span class="op">!</span><span class="ident">b</span>.<span class="ident">address</span>.<span class="ident">starts_with</span>(<span class="string">&quot;???&quot;</span>) {
                                <span class="ident">results</span>.<span class="ident">push</span>((<span class="ident">b</span>.<span class="ident">address</span>.<span class="ident">clone</span>(), <span class="ident">b</span>.<span class="ident">id</span>));
                            }
                            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">names</span>) <span class="op">=</span> <span class="ident">b</span>.<span class="ident">name</span> {
                                <span class="ident">results</span>.<span class="ident">push</span>((
                                    <span class="ident">names</span>.<span class="ident">get</span>(<span class="ident">app</span>.<span class="ident">opts</span>().<span class="ident">language</span>.<span class="ident">as_ref</span>()).<span class="ident">to_string</span>(),
                                    <span class="ident">b</span>.<span class="ident">id</span>,
                                ));
                            }
                            <span class="kw">for</span> <span class="ident">a</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">b</span>.<span class="ident">amenities</span> {
                                <span class="ident">results</span>.<span class="ident">push</span>((
                                    <span class="macro">format!</span>(
                                        <span class="string">&quot;{} (at {})&quot;</span>,
                                        <span class="ident">a</span>.<span class="ident">names</span>.<span class="ident">get</span>(<span class="ident">app</span>.<span class="ident">opts</span>().<span class="ident">language</span>.<span class="ident">as_ref</span>()),
                                        <span class="ident">b</span>.<span class="ident">address</span>
                                    ),
                                    <span class="ident">b</span>.<span class="ident">id</span>,
                                ));
                            }
                            <span class="ident">results</span>
                        })
                        .<span class="ident">collect</span>(),
                    <span class="number">10</span>,
                )
                .<span class="ident">named</span>(<span class="string">&quot;bldg&quot;</span>),
                <span class="ident">ctx</span>.<span class="ident">style</span>()
                    .<span class="ident">btn_outline</span>
                    .<span class="ident">text</span>(<span class="string">&quot;Search for streets&quot;</span>)
                    .<span class="ident">hotkey</span>(<span class="ident">Key::Tab</span>)
                    .<span class="ident">build_def</span>(<span class="ident">ctx</span>),
            ]))
            .<span class="ident">build</span>(<span class="ident">ctx</span>),
        })
    }
}

<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">A</span>: <span class="ident">AppLike</span> <span class="op">+</span> <span class="lifetime">&#39;static</span><span class="op">&gt;</span> <span class="ident">State</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">SearchBuildings</span> {
    <span class="kw">fn</span> <span class="ident">event</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">ctx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">EventCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">A</span>) -&gt; <span class="ident">Transition</span><span class="op">&lt;</span><span class="ident">A</span><span class="op">&gt;</span> {
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Outcome::Clicked</span>(<span class="ident">x</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">event</span>(<span class="ident">ctx</span>) {
            <span class="kw">match</span> <span class="ident">x</span>.<span class="ident">as_ref</span>() {
                <span class="string">&quot;close&quot;</span> =&gt; {
                    <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
                }
                <span class="string">&quot;Search for streets&quot;</span> =&gt; {
                    <span class="kw">return</span> <span class="ident">Transition::Replace</span>(<span class="ident">Navigator::new_state</span>(<span class="ident">ctx</span>, <span class="ident">app</span>));
                }
                <span class="kw">_</span> =&gt; <span class="macro">unreachable!</span>(),
            }
        }
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">bldgs</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">autocomplete_done</span>(<span class="string">&quot;bldg&quot;</span>) {
            <span class="kw">if</span> <span class="ident">bldgs</span>.<span class="ident">is_empty</span>() {
                <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
            }
            <span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="ident">app</span>.<span class="ident">map</span>().<span class="ident">get_b</span>(<span class="ident">bldgs</span>[<span class="number">0</span>]);
            <span class="kw">let</span> <span class="ident">pt</span> <span class="op">=</span> <span class="ident">b</span>.<span class="ident">label_center</span>;
            <span class="kw">return</span> <span class="ident">Transition::Replace</span>(<span class="ident">app</span>.<span class="ident">make_warper</span>(
                <span class="ident">ctx</span>,
                <span class="ident">pt</span>,
                <span class="prelude-val">Some</span>(<span class="ident">ctx</span>.<span class="ident">canvas</span>.<span class="ident">settings</span>.<span class="ident">min_zoom_for_detail</span>),
                <span class="prelude-val">Some</span>(<span class="ident">ID::Building</span>(<span class="ident">bldgs</span>[<span class="number">0</span>])),
            ));
        }

        <span class="kw">if</span> <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">clicked_outside</span>(<span class="ident">ctx</span>) {
            <span class="kw">return</span> <span class="ident">Transition::Pop</span>;
        }

        <span class="ident">Transition::Keep</span>
    }

    <span class="kw">fn</span> <span class="ident">draw</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">g</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">GfxCtx</span>, <span class="ident">app</span>: <span class="kw-2">&amp;</span><span class="ident">A</span>) {
        <span class="ident">grey_out_map</span>(<span class="ident">g</span>, <span class="ident">app</span>);
        <span class="self">self</span>.<span class="ident">panel</span>.<span class="ident">draw</span>(<span class="ident">g</span>);
    }
}
</code></pre></div>
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