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<div id="projectname">FTXUI
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 <span id="projectnumber">0.11.0</span>
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<div id="projectbrief">C++ functional terminal UI.</div>
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<div class="headertitle"><div class="title">maybe.cpp</div></div>
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<a href="maybe_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include <memory></span> <span class="comment">// for make_unique, __shared_ptr_access, __shared_ptr_access<>::element_type, shared_ptr</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include <utility></span> <span class="comment">// for move</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include "<a class="code" href="component_8hpp.html">ftxui/component/component.hpp</a>"</span> <span class="comment">// for Make, Maybe</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include "<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>"</span> <span class="comment">// for ComponentBase, Component</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include "<a class="code" href="event_8hpp.html">ftxui/component/event.hpp</a>"</span> <span class="comment">// for Event</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include "<a class="code" href="elements_8hpp.html">ftxui/dom/elements.hpp</a>"</span> <span class="comment">// for Element</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include "<a class="code" href="node_8hpp.html">ftxui/dom/node.hpp</a>"</span> <span class="comment">// for Node</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a> {</div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="foldopen" id="foldopen00012" data-start="{" data-end="}">
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"><a class="line" href="namespaceftxui.html#abe1e4e93c6f28539357d0a6aec27ebdd"> 12</a></span><a class="code hl_typedef" href="namespaceftxui.html#af1479ede01dbf087342534ab4ada11d3">Component</a> <a class="code hl_function" href="namespaceftxui.html#abe1e4e93c6f28539357d0a6aec27ebdd">Maybe</a>(<a class="code hl_typedef" href="namespaceftxui.html#af1479ede01dbf087342534ab4ada11d3">Component</a> child, <span class="keywordtype">bool</span>* show) {</div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">class </span>Impl : <span class="keyword">public</span> <a class="code hl_class" href="classftxui_1_1ComponentBase.html">ComponentBase</a> {</div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> Impl(<span class="keywordtype">bool</span>* show) : show_(show) {}</div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> <a class="code hl_typedef" href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">Element</a> <a class="code hl_function" href="namespaceftxui.html#ad4b8aa9392f56ba41e2b421e046a7d83">Render</a>()<span class="keyword"> override </span>{</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keywordflow">return</span> *show_ ? ComponentBase::Render() : std::make_unique<Node>();</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> }</div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordtype">bool</span> Focusable()<span class="keyword"> const override </span>{</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordflow">return</span> *show_ && ComponentBase::Focusable();</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> }</div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">bool</span> OnEvent(<a class="code hl_struct" href="structftxui_1_1Event.html">Event</a> event)<span class="keyword"> override </span>{</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">return</span> *show_ && ComponentBase::OnEvent(event);</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> }</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keywordtype">bool</span>* show_;</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> };</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">auto</span> maybe = <a class="code hl_function" href="namespaceftxui.html#a2b8973dc71334f1d98e2e6f55de8b5ae">Make<Impl></a>(show);</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> maybe->Add(std::move(child));</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">return</span> maybe;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span>}</div>
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</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>} <span class="comment">// namespace ftxui</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// Copyright 2021 Arthur Sonzogni. All rights reserved.</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">// Use of this source code is governed by the MIT license that can be found in</span></div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="comment">// the LICENSE file.</span></div>
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<div class="ttc" id="aclassftxui_1_1ComponentBase_html"><div class="ttname"><a href="classftxui_1_1ComponentBase.html">ftxui::ComponentBase</a></div><div class="ttdoc">It implement rendering itself as ftxui::Element. It implement keyboard navigation by responding to ft...</div><div class="ttdef"><b>Definition</b> <a href="component__base_8hpp_source.html#l00023">component_base.hpp:23</a></div></div>
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<div class="ttc" id="acomponent_8hpp_html"><div class="ttname"><a href="component_8hpp.html">component.hpp</a></div></div>
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<div class="ttc" id="acomponent__base_8hpp_html"><div class="ttname"><a href="component__base_8hpp.html">component_base.hpp</a></div></div>
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<div class="ttc" id="aelements_8hpp_html"><div class="ttname"><a href="elements_8hpp.html">elements.hpp</a></div></div>
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<div class="ttc" id="anamespaceftxui_html"><div class="ttname"><a href="namespaceftxui.html">ftxui</a></div><div class="ttdef"><b>Definition</b> <a href="captured__mouse_8hpp_source.html#l00006">captured_mouse.hpp:6</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_a2b8973dc71334f1d98e2e6f55de8b5ae"><div class="ttname"><a href="namespaceftxui.html#a2b8973dc71334f1d98e2e6f55de8b5ae">ftxui::Make</a></div><div class="ttdeci">std::shared_ptr< T > Make(Args &&... args)</div><div class="ttdef"><b>Definition</b> <a href="component_8hpp_source.html#l00025">component.hpp:25</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_a2bc31f2d685189e5c61d2293a1f51b4f"><div class="ttname"><a href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">ftxui::Element</a></div><div class="ttdeci">std::shared_ptr< Node > Element</div><div class="ttdef"><b>Definition</b> <a href="elements_8hpp_source.html#l00015">elements.hpp:15</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_abe1e4e93c6f28539357d0a6aec27ebdd"><div class="ttname"><a href="namespaceftxui.html#abe1e4e93c6f28539357d0a6aec27ebdd">ftxui::Maybe</a></div><div class="ttdeci">Component Maybe(Component, bool *show)</div><div class="ttdef"><b>Definition</b> <a href="#l00012">maybe.cpp:12</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_ad4b8aa9392f56ba41e2b421e046a7d83"><div class="ttname"><a href="namespaceftxui.html#ad4b8aa9392f56ba41e2b421e046a7d83">ftxui::Render</a></div><div class="ttdeci">void Render(Screen &screen, const Element &node)</div><div class="ttdoc">Display an element on a ftxui::Screen.</div><div class="ttdef"><b>Definition</b> <a href="node_8cpp_source.html#l00034">node.cpp:34</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_af1479ede01dbf087342534ab4ada11d3"><div class="ttname"><a href="namespaceftxui.html#af1479ede01dbf087342534ab4ada11d3">ftxui::Component</a></div><div class="ttdeci">std::shared_ptr< ComponentBase > Component</div><div class="ttdef"><b>Definition</b> <a href="component__base_8hpp_source.html#l00017">component_base.hpp:17</a></div></div>
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<div class="ttc" id="astructftxui_1_1Event_html"><div class="ttname"><a href="structftxui_1_1Event.html">ftxui::Event</a></div><div class="ttdoc">Represent an event. It can be key press event, a terminal resize, or more ...</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00025">event.hpp:25</a></div></div>
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