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  <div class="headertitle"><div class="title">ButtonStrip.cs</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="preprocessor">#if UNITY_2019_4_OR_NEWER</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="keyword">using </span>System;</div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="keyword">using </span>System.Collections.Generic;</div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="keyword">using </span>System.Linq;</div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="keyword">using </span>com.zibra.liquid.Foundation.Editor;</div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="keyword">using </span>JetBrains.Annotations;</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="keyword">using </span>UnityEditor;</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="keyword">using </span>UnityEngine.UIElements;</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="keyword">namespace </span>com.zibra.liquid.Foundation.UIElements</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span>{</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span>    <span class="keyword">internal</span> sealed <span class="keyword">class </span>ButtonStrip : VisualElement</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span>    {</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span>        [UsedImplicitly]</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span>        <span class="keyword">internal</span> <span class="keyword">new</span> <span class="keyword">class </span>UxmlFactory : UxmlFactory&lt;ButtonStrip, UxmlTraits&gt;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span>        {</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>        }</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span>        <span class="keyword">internal</span> <span class="keyword">new</span> <span class="keyword">class </span>UxmlTraits : BindableElement.UxmlTraits {}</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>        <span class="keyword">internal</span> <span class="keyword">const</span> <span class="keywordtype">string</span> UssClassName = <span class="stringliteral">&quot;zibraai-button-strip&quot;</span>;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonClassName = UssClassName + <span class="stringliteral">&quot;__button&quot;</span>;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonLeftClassName = k_ButtonClassName + <span class="stringliteral">&quot;--left&quot;</span>;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonMidClassName = k_ButtonClassName + <span class="stringliteral">&quot;--mid&quot;</span>;</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonRightClassName = k_ButtonClassName + <span class="stringliteral">&quot;--right&quot;</span>;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonIconClassName = UssClassName + <span class="stringliteral">&quot;__button-icon&quot;</span>;</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonActiveClassNameDark = k_ButtonClassName + <span class="stringliteral">&quot;--active-dark&quot;</span>;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>        <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">string</span> k_ButtonActiveClassNameLight = k_ButtonClassName + <span class="stringliteral">&quot;--active-light&quot;</span>;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>        <span class="keyword">private</span> readonly List&lt;string&gt; m_Choices = <span class="keyword">new</span> List&lt;string&gt;();</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>        <span class="keyword">private</span> readonly List&lt;string&gt; m_Labels = <span class="keyword">new</span> List&lt;string&gt;();</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>        <span class="keyword">private</span> readonly List&lt;Button&gt; m_Buttons = <span class="keyword">new</span> List&lt;Button&gt;();</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>        <span class="keyword">internal</span> IEnumerable&lt;string&gt; Choices =&gt; m_Choices;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>        <span class="keyword">internal</span> IEnumerable&lt;string&gt; Labels =&gt; m_Labels;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>        <span class="keyword">private</span> readonly TextField m_TextField;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>        <span class="keyword">internal</span> <span class="keywordtype">string</span> Value { <span class="keyword">get</span>; <span class="keyword">set</span>; }</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>        <span class="keyword">internal</span> <span class="keyword">event</span> Action OnButtonClick;</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>        <span class="keyword">public</span> ButtonStrip() : this(new[] { <span class="stringliteral">&quot;LEFT&quot;</span>, <span class="stringliteral">&quot;MIDDLE&quot;</span>, <span class="stringliteral">&quot;RIGHT&quot;</span> })</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>        {</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>        }</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>        <span class="keyword">internal</span> ButtonStrip(IEnumerable&lt;string&gt; choices)</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>        {</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>            AddToClassList(UssClassName);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>            UIToolkitEditorUtility.ApplyStyleForInternalControl(<span class="keyword">this</span>, nameof(ButtonStrip));</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>            var collection = choices.ToList();</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>            m_Choices.AddRange(collection);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>            m_Labels.AddRange(collection);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>            RecreateButtons();</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>            m_TextField = <span class="keyword">new</span> TextField { viewDataKey = <span class="stringliteral">&quot;view-data&quot;</span> };</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>            m_TextField.style.display = DisplayStyle.None;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>            Add(m_TextField);</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>            <span class="comment">// This is only possible when data is restored.</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>            m_TextField.RegisterValueChangedCallback(e =&gt; { SetValue(e.newValue); });</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>        }</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>        <span class="keyword">internal</span> <span class="keywordtype">void</span> SetValue(<span class="keywordtype">string</span> value)</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>        {</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>            SetValueWithoutNotify(value);</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>            OnButtonClick?.Invoke();</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>        }</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>        <span class="keyword">internal</span> <span class="keywordtype">void</span> SetValueWithoutNotify(<span class="keywordtype">string</span> value)</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>        {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>            var index = m_Choices.IndexOf(value);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>            <span class="keywordflow">if</span> (index == -1)</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>                <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>            Value = value;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>            m_TextField.SetValueWithoutNotify(value);</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>            ToggleButtonStates(m_Buttons[index]);</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>        }</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>        <span class="keyword">internal</span> <span class="keywordtype">void</span> AddChoice(<span class="keywordtype">string</span> choice, <span class="keywordtype">string</span> label)</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>        {</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>            m_Choices.Add(choice);</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>            m_Labels.Add(label);</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>            RecreateButtons();</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>            <span class="keywordflow">if</span> (m_Choices.Count == 1)</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>                SetValueWithoutNotify(choice);</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>        }</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span> </div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>        <span class="keyword">internal</span> <span class="keywordtype">void</span> CleanUp()</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>        {</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>            <span class="keywordflow">foreach</span> (var button <span class="keywordflow">in</span> m_Buttons)</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>                button.RemoveFromHierarchy();</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span> </div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>            m_Choices.Clear();</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>            m_Labels.Clear();</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>            m_Buttons.Clear();</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>        }</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span> </div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>        <span class="keyword">private</span> <span class="keywordtype">void</span> RecreateButtons()</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>        {</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>            <span class="keywordflow">foreach</span> (var button <span class="keywordflow">in</span> m_Buttons)</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>                button.RemoveFromHierarchy();</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span> </div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>            m_Buttons.Clear();</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>            <span class="keywordflow">for</span> (var i = 0; i &lt; m_Choices.Count; ++i)</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>            {</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>                var choice = m_Choices[i];</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>                <span class="keywordtype">string</span> label = <span class="keyword">null</span>;</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>                <span class="keywordflow">if</span> (m_Labels.Count &gt; i)</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>                    label = m_Labels[i];</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span> </div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>                var button = <span class="keyword">new</span> Button();</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>                button.AddToClassList(k_ButtonClassName);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span> </div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>                <span class="comment">// Set button name for styling.</span></div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>                button.name = choice;</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span> </div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>                <span class="comment">// Set tooltip.</span></div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>                button.tooltip = choice;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span> </div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>                <span class="keywordflow">if</span> (i == 0)</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>                    button.AddToClassList(k_ButtonLeftClassName);</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>                <span class="keywordflow">else</span> <span class="keywordflow">if</span> (i == m_Choices.Count - 1)</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>                    button.AddToClassList(k_ButtonRightClassName);</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>                <span class="keywordflow">else</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>                    button.AddToClassList(k_ButtonMidClassName);</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span> </div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="preprocessor">#if UNITY_2019_3_OR_NEWER</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>                button.clicked += () =&gt;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>#<span class="keywordflow">else</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>                button.clickable.clicked += () =&gt;</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>                { SetValue(choice); };</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span> </div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>                m_Buttons.Add(button);</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span> </div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>                Add(button);</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>                <span class="keywordflow">if</span> (<span class="keywordtype">string</span>.IsNullOrEmpty(label))</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>                {</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>                    var icon = <span class="keyword">new</span> VisualElement();</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>                    icon.AddToClassList(k_ButtonIconClassName);</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>                    button.Add(icon);</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>                }</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>                <span class="keywordflow">else</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>                {</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>                    button.text = label;</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span>                }</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span>            }</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span> </div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>            SetValueWithoutNotify(Value);</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>        }</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span> </div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>        <span class="keyword">private</span> <span class="keywordtype">void</span> ToggleButtonStates(Button button)</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>        {</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>            <span class="keywordflow">foreach</span> (var btn <span class="keywordflow">in</span> m_Buttons)</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>            {</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>                btn.RemoveFromClassList(k_ButtonActiveClassNameDark);</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>                btn.RemoveFromClassList(k_ButtonActiveClassNameLight);</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>            }</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span> </div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>            button.AddToClassList(EditorGUIUtility.isProSkin ? k_ButtonActiveClassNameDark</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>                                                             : k_ButtonActiveClassNameLight);</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>        }</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>    }</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>}</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="preprocessor">#endif</span></div>
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