Halfpastfour\PHPChartJS\Renderer\JavaScript::render()

Complexity

Conditions	1
Paths	1

Size

Total Lines	27
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

<?php
    public function render($flags = null)
    {
        $script = [];

        // First, setup the canvas context
        $script[] = "var ctx = document.getElementById( \"{$this->chart->getId()}\" ).getContext( \"2d\" );";

        // Now, setup the chart instance
        $jsonRenderer = new Json($this->chart);
        $json         = $jsonRenderer->render($flags);
        $script[]     = "var chart = new Chart( ctx, {$json} );";
        $scriptString = implode("\n", $script);

        // Return the script
        return <<<JS
window.onload=(function(oldLoad){return function(){
  if (oldLoad) {
    oldLoad();
  }
  
  {$scriptString};
  
  if (! window.hasOwnProperty('chartInstances')) {
    window.chartInstances = {};
  }
  
  window.chartInstances['{$this->chart->getId()}'] = chart;
}})(window.onload);