Allow treemaps and other custom chart types via plugins.

config/chartjs.php

@@ -75,4 +75,21 @@
 
     'custom_view' => false,
 
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Chart Type Plugins
+    |--------------------------------------------------------------------------
+    |
+    | You can add plugins to Charjs for various custom chart types
+    | by adding the name of the chart type and the URL to the plugin.
+    | This is useful for adding custom chart types to the package
+    | without having to modify the package itself.
+    |
+    | Available choices are type labels and urls to CDNs. such as:
+    | 'treemap' => 'https://cdn.jsdelivr.net/npm/chartjs-chart-treemap@2.3.1/dist/chartjs-chart-treemap.min.js'
+    |
+    */
+
+    'custom_chart_types' => []
+
 ];

src/Support/Config.php

@@ -8,10 +8,13 @@ class Config
 {
     public static function allowedChartTypes()
     {
+        $base_types = ['bar', 'horizontalBar', 'bubble', 'scatter', 'doughnut', 'line', 'pie', 'polarArea', 'radar'];
+
         if (self::chartJsVersion() > 3) {
-            return ['bar', 'bubble', 'scatter', 'doughnut', 'line', 'pie', 'polarArea', 'radar'];
+            $base_types = ['bar', 'bubble', 'scatter', 'doughnut', 'line', 'pie', 'polarArea', 'radar'];
         }
-        return ['bar', 'horizontalBar', 'bubble', 'scatter', 'doughnut', 'line', 'pie', 'polarArea', 'radar'];
+
+        return array_merge($base_types, array_keys(config('chartjs.custom_chart_types', [])));
     }
 
     public static function chartJsVersion()

src/resources/views/chart-template.blade.php

@@ -40,6 +40,11 @@
                 @endif
                 <script src="https://cdn.jsdelivr.net/npm/numeral@2.0.6/numeral.min.js"></script>
             @endif
+            @if(Config::get('chartjs.custom_chart_types'))
+                    @foreach(Config::get('chartjs.custom_chart_types') as $label => $cdn)
+                        <script src="{{ $cdn }}"></script>
+                    @endforeach
+            @endif
     @elseif($delivery == 'publish')
         @if($version == 4)
             <script type="module" src="{{ asset('vendor/laravelchartjs/chart.js') }}"></script>