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<?php |
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namespace backend\widgets\chart\chartjs; |
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use backend\widgets\chart\chartjs\assets\ChartJsAsset; |
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use yii\helpers\ArrayHelper; |
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use yii\helpers\Html; |
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use yii\helpers\Json; |
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use yii\base\Widget; |
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/** |
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* Class Chart |
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* |
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* @package backend\widgets\chart\chartjs |
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*/ |
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class Chart extends Widget |
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{ |
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const TYPE_LINE = 'line'; |
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const TYPE_BAR = 'bar'; |
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const TYPE_RADAR = 'radar'; |
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const TYPE_PIE = 'pie'; |
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const TYPE_DOUGHNUT = 'doughnut'; |
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const TYPE_POLAR_AREA = 'polarArea'; |
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const TYPE_BUBBLE = 'bubble'; |
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const TYPE_SCATTER = 'scatter'; |
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/** @var bool */ |
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public $status = true; |
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/** @var array */ |
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public $containerOptions = []; |
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/** @var array */ |
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public $clientOptions = []; |
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/** @var array */ |
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public $clientData = []; |
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/** @var string */ |
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public $type; |
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/** |
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* @inheritDoc |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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if ($this->status === true) { |
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$this->registerAsset(); |
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} |
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$this->id = $this->id ?: $this->getId(); |
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$this->type = $this->type ?: self::TYPE_LINE; |
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ArrayHelper::setValue($this->containerOptions, 'id', $this->id); |
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} |
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/** |
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* Run |
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* |
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* @return string |
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*/ |
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public function run() |
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{ |
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return Html::tag('canvas', '', $this->containerOptions); |
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} |
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/** |
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* Client Options |
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* |
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* @return array |
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*/ |
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public function getClientOptions() |
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{ |
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$clientOptions = []; |
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return ArrayHelper::merge($clientOptions, $this->clientOptions); |
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} |
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/** |
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* Client Data |
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* |
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* @return array |
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*/ |
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public function getClientData() |
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{ |
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$clientData = []; |
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return ArrayHelper::merge($clientData, $this->clientData); |
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} |
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/** |
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* Register Asset |
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*/ |
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public function registerAsset() |
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{ |
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$view = $this->getView(); |
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ChartJsAsset::register($view); |
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$clientData = Json::encode($this->getClientData()); |
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$clientOptions = Json::encode($this->getClientOptions()); |
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$type = $this->type; |
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$script = " |
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let ctx_{$this->id} = document.getElementById('{$this->id}').getContext('2d'); |
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let jsChart_{$this->id} = new Chart(ctx_{$this->id}, { |
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type: '{$type}', |
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data: {$clientData}, |
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options: {$clientOptions} |
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}); |
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"; |
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$view->registerJs($script); |
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} |
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} |
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