src/Twig/ImageRenderExtension.php line 32

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  1. <?php
  3. namespace App\Twig;
  5. use Twig\Extension\AbstractExtension;
  6. use Twig\TwigFunction;
  8. class ImageRenderExtension extends AbstractExtension
  9. {
  10. public function getFunctions()
  11. {
  12. return [
  13. new TwigFunction('responsive_src', [$this, 'generateSrc']),
  14. new TwigFunction('responsive_background', [$this, 'generateBackground']),
  15. new TwigFunction('get_assets', [$this, 'getFiles']),
  16. ];
  17. }
  19. public static function acceptWebp(): bool
  20. {
  21. return (bool)strstr($_SERVER['HTTP_ACCEPT'], 'image/webp');
  22. }
  24. public function generateSrc(string $imagePath)
  25. {
  26. [$fileName, $extension, $basePath] = $this->extractImageParameters($imagePath);
  27. if (file_exists(".$basePath/$fileName/3x.$extension")) {
  28. [$s, $m, $l] = $this->getFileSizes($imagePath);
  29. $fileName = str_replace(' ', '%20', $fileName);
  30. return "
  31. src='$basePath/$fileName/3x.$extension'
  32. srcset='$basePath/$fileName/1x.$extension ${s}w,$basePath/$fileName/2x.$extension ${m}w,$basePath/$fileName/3x.$extension ${l}w'
  33. sizes='100vw'
  34. ";
  35. }
  36. return "src='$imagePath'";
  37. }
  39. private function getFileSizes($imagePath): array
  40. {
  41. [$fileName, $extension, $basePath] = $this->extractImageParameters($imagePath);
  42. if(file_exists(".$imagePath")){
  43. return [
  44. getimagesize(".$basePath/$fileName/1x.$extension")[0],
  45. getimagesize(".$basePath/$fileName/2x.$extension")[0],
  46. getimagesize(".$basePath/$fileName/3x.$extension")[0]
  47. ];
  48. }
  49. else{
  50. return [0,0,0];
  51. }
  52. }
  54. public function generateBackground(string $imagePath,string $additionnalStyle = '',bool $addGradient = false)
  55. {
  56. [$fileName, $extension, $basePath] = $this->extractImageParameters($imagePath);
  57. if (file_exists(".$basePath/$fileName/3x.$extension")) {
  58. [$s, $m, $l] = $this->getFileSizes($imagePath);
  59. $addGradient = $addGradient ? '' : '';
  60. $fileName = str_replace(' ', '%20', $fileName);
  61. return "data-custom-bg-image=true style='
  62. background-image: $addGradient url(\"$basePath/$fileName/3x.$extension\");
  63. background-image : $addGradient -webkit-image-set(
  64. url(\"$basePath/$fileName/1x.$extension\") 1x,
  65. url(\"$basePath/$fileName/2x.$extension\") 2x,
  66. url(\"$basePath/$fileName/3x.$extension\") 3x);
  67. background-image : $addGradient image-set(
  68. url(\"$basePath/$fileName/1x.$extension\") 1x,
  69. url(\"$basePath/$fileName/2x.$extension\") 2x,
  70. url(\"$basePath/$fileName/3x.$extension\") 3x);
  71. background-image : $addGradient image-set(
  72. url(\"$basePath/$fileName/1x.$extension\") ${s}w,
  73. url(\"$basePath/$fileName/2x.$extension\") ${m}w,
  74. url(\"$basePath/$fileName/3x.$extension\") ${l}w);
  75. $additionnalStyle'";
  76. }
  77. return "data-bg-image='$imagePath' style='$additionnalStyle'";
  78. }
  80. public function getFiles(string $imagePath)
  81. {
  82. [$fileName, $extension, $basePath] = $this->extractImageParameters($imagePath);
  83. return [
  84. '1x' => "$basePath/$fileName/1x.$extension",
  85. '2x' => "$basePath/$fileName/2x.$extension",
  86. '3x' => "$basePath/$fileName/3x.$extension",
  87. ];
  88. }/**
  89. * @param string $imagePath
  90. * @return array
  91. */
  92. protected function extractImageParameters(string $imagePath): array
  93. {
  94. // dump("nom de l'image : $imagePath");
  95. $fileName = pathinfo($imagePath, PATHINFO_FILENAME);
  96. $extension = self::acceptWebp() ? 'webp' : pathinfo($imagePath, PATHINFO_EXTENSION);
  97. $basePath = pathinfo($imagePath, PATHINFO_DIRNAME);
  98. $basePath = str_replace('/images', '/image_build/images', $basePath);
  99. $basePath = str_replace('/websiteImage', '/image_build/websiteImage', $basePath);
  100. return [$fileName, $extension, $basePath];
  101. }
  102. }