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<h2><span class="body-module-name"><strong><em>expcore.gui.elements.dropdown</em></strong></span> module</h2>
<p>Gui class define for dropdowns and list box
[[</p>
<p></p>
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<h3><a href="#Dependencies">Dependencies</a></h3>
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<td class="name"><a href="#expcore.gui.core">expcore.gui.core</a></td>
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<td class="name"><a href="#expcore.gui.prototype">expcore.gui.prototype</a></td>
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<td class="name"><a href="#utils.game">utils.game</a></td>
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<h3><a href="#Functions">Functions</a></h3>
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<td class="name"><a href="#Dropdown.new_dropdown">Dropdown.new_dropdown([name])</a></td>
<td class="summary">Creates a new dropdown element define</td>
</tr>
<tr>
<td class="name"><a href="#Dropdown.new_list_box">Dropdown.new_list_box([name])</a></td>
<td class="summary">Creates a new list box element define</td>
</tr>
<tr>
<td class="name"><a href="#Dropdown._prototype:new_static_options">Dropdown._prototype:new_static_options(options[, ...], the)</a></td>
<td class="summary">Adds new static options to the dropdown which will trigger the general callback</td>
</tr>
<tr>
<td class="name"><a href="#Dropdown._prototype:new_dynamic_options">Dropdown._prototype:new_dynamic_options(callback)</a></td>
<td class="summary">Adds a callback which should return a table of values to be added as options for the dropdown (appended after static options)</td>
</tr>
<tr>
<td class="name"><a href="#Dropdown._prototype:add_option_callback">Dropdown._prototype:add_option_callback(option, callback)</a></td>
<td class="summary">Adds a case specific callback which will only run when that option is selected (general case still triggered)</td>
</tr>
<tr>
<td class="name"><a href="#Dropdown.select_value">Dropdown.select_value(element, value)</a></td>
<td class="summary">Selects the option from a dropdown or list box given the value rather than key</td>
</tr>
<tr>
<td class="name"><a href="#Dropdown.get_selected_value">Dropdown.get_selected_value(element)</a></td>
<td class="summary">Returns the currently selected value rather than index</td>
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<a href="#expcore.gui.prototype" class="fragment-hashtag">#</a>
<span class="section-item-title" id="expcore.gui.prototype">expcore.gui.prototype</span>
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<a href="#utils.game" class="fragment-hashtag">#</a>
<span class="section-item-title" id="utils.game">utils.game</span>
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<div class="block section-item-header">
<a href="#Dropdown.new_dropdown" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown.new_dropdown">Dropdown.new_dropdown([name])</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Creates a new dropdown element define</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>name</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/Builtin-Types.html#string">string</a></span>)
the optional debug name that can be added
(<em>optional</em>)
</li>
</ul>
<!-- parameters end -->
<!-- returns start -->
<strong>Returns:</strong>
<ul>
<li>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.5.html">table</a></span>)
<span class="return-text">the new dropdown element define</span>
</li>
</ul>
<!-- returns end -->
<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
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</dd>
<dt>
<div class="divider divider-custom"></div>
<div class="block section-item-header">
<a href="#Dropdown.new_list_box" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown.new_list_box">Dropdown.new_list_box([name])</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Creates a new list box element define</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>name</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/Builtin-Types.html#string">string</a></span>)
the optional debug name that can be added
(<em>optional</em>)
</li>
</ul>
<!-- parameters end -->
<!-- returns start -->
<strong>Returns:</strong>
<ul>
<li>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.5.html">table</a></span>)
<span class="return-text">the new list box element define</span>
</li>
</ul>
<!-- returns end -->
<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
<!-- usage end -->
</dd>
<dt>
<div class="divider divider-custom"></div>
<div class="block section-item-header">
<a href="#Dropdown._prototype:new_static_options" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown._prototype:new_static_options">Dropdown._prototype:new_static_options(options[, ...], the)</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Adds new static options to the dropdown which will trigger the general callback</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>options</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.5.html">table</a></span>)
?string|table either a of option strings or the first option string, with a table values are the options
</li>
<li class="section-subitem-li">
<strong><em>...</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.5.html">table</a></span>)
when options is not a you can add the options one after each other
(<em>optional</em>)
</li>
<li class="section-subitem-li">
<strong><em>the</em></strong>
<strong> : </strong>
(<span class="types"><span class="type">self</span></span>)
define to allow chaining
</li>
</ul>
<!-- parameters end -->
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<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
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<dt>
<div class="divider divider-custom"></div>
<div class="block section-item-header">
<a href="#Dropdown._prototype:new_dynamic_options" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown._prototype:new_dynamic_options">Dropdown._prototype:new_dynamic_options(callback)</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Adds a callback which should return a table of values to be added as options for the dropdown (appended after static options)</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>callback</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.6.html">function</a></span>)
the function that will run to get the options for the dropdown
callback param - player LuaPlayer - the player that the element is being drawn to
callback param - element LuaGuiElement - the element that is being drawn
callback return - table - the values of this table will be appended to the static options of the dropdown
</li>
</ul>
<!-- parameters end -->
<!-- returns start -->
<strong>Returns:</strong>
<ul>
<li>
(<span class="types"><span class="type">self</span></span>)
<span class="return-text">the define to allow chaining</span>
</li>
</ul>
<!-- returns end -->
<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
<!-- usage end -->
</dd>
<dt>
<div class="divider divider-custom"></div>
<div class="block section-item-header">
<a href="#Dropdown._prototype:add_option_callback" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown._prototype:add_option_callback">Dropdown._prototype:add_option_callback(option, callback)</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Adds a case specific callback which will only run when that option is selected (general case still triggered)</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>option</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/Builtin-Types.html#string">string</a></span>)
the name of the option to trigger the callback on; if not already added then will be added as an option
</li>
<li class="section-subitem-li">
<strong><em>callback</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.6.html">function</a></span>)
the function that will be called when that option is selected
callback param - player LuaPlayer - the player who owns the gui element
callback param - element LuaGuiElement - the element which is being effected
callback param - value string - the new option that has been selected
</li>
</ul>
<!-- parameters end -->
<!-- returns start -->
<strong>Returns:</strong>
<ul>
<li>
(<span class="types"><span class="type">self</span></span>)
<span class="return-text">the define to allow chaining</span>
</li>
</ul>
<!-- returns end -->
<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
<!-- usage end -->
</dd>
<dt>
<div class="divider divider-custom"></div>
<div class="block section-item-header">
<a href="#Dropdown.select_value" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown.select_value">Dropdown.select_value(element, value)</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Selects the option from a dropdown or list box given the value rather than key</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>element</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/LuaGuiElement.html">LuaGuiElement</a></span>)
the element that contains the option
</li>
<li class="section-subitem-li">
<strong><em>value</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/Builtin-Types.html#string">string</a></span>)
the option to select from the dropdown
</li>
</ul>
<!-- parameters end -->
<!-- returns start -->
<strong>Returns:</strong>
<ul>
<li>
(<span class="types"><a class="type" href="https://www.lua.org/pil/2.3.html">number</a></span>)
<span class="return-text">the key where the value was</span>
</li>
</ul>
<!-- returns end -->
<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
<!-- usage end -->
</dd>
<dt>
<div class="divider divider-custom"></div>
<div class="block section-item-header">
<a href="#Dropdown.get_selected_value" class="fragment-hashtag">#</a>
<span class="section-item-title" id="Dropdown.get_selected_value">Dropdown.get_selected_value(element)</span>
</div>
</dt>
<dd>
<div class="section-item-body">
<p class="section-item-summary">Returns the currently selected value rather than index</p>
<p class="section-item-description"></p>
<!-- parameters start -->
<strong>Parameters:</strong>
<ul>
<li class="section-subitem-li">
<strong><em>element</em></strong>
<strong> : </strong>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/LuaGuiElement.html">LuaGuiElement</a></span>)
the gui element that you want to get the value of
</li>
</ul>
<!-- parameters end -->
<!-- returns start -->
<strong>Returns:</strong>
<ul>
<li>
(<span class="types"><a class="type" href="http://lua-api.factorio.com/latest/Builtin-Types.html#string">string</a></span>)
<span class="return-text">the value that is currently selected</span>
</li>
</ul>
<!-- returns end -->
<!-- see also start -->
<!-- see also end -->
<!-- usage start -->
<!-- usage end -->
</dd>
</dl>
<!-- section end -->
</div>
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<i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc </a></i>
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