protected function SvgIconBuilder::buildRenderArray in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Layout/Icon/SvgIconBuilder.php \Drupal\Core\Layout\Icon\SvgIconBuilder::buildRenderArray()

Builds a render array representation of an SVG.

Parameters

mixed[] $regions: An array keyed by region name, with each element containing the 'height', 'width', and 'x' and 'y' offsets of each region.

int $width: The width of the SVG.

int $height: The height of the SVG.

int|null $stroke_width: The width of region borders.

Return value

array A render array representing a SVG icon.

1 call to SvgIconBuilder::buildRenderArray()

SvgIconBuilder::build in core/lib/Drupal/Core/Layout/Icon/SvgIconBuilder.php

Builds a render array representation of an SVG based on an icon map.

File

core/lib/Drupal/Core/Layout/Icon/SvgIconBuilder.php, line 78

Class

SvgIconBuilder

Builds SVG layout icons.

Namespace

Drupal\Core\Layout\Icon

Code

protected function buildRenderArray(array $regions, $width, $height, $stroke_width) {
  $build = [
    '#type' => 'html_tag',
    '#tag' => 'svg',
    '#attributes' => [
      'width' => $width,
      'height' => $height,
      'class' => [
        'layout-icon',
      ],
    ],
  ];
  if ($this->id) {
    $build['#attributes']['class'][] = Html::getClass('layout-icon--' . $this->id);
  }
  if ($this->label) {
    $build['title'] = [
      '#type' => 'html_tag',
      '#tag' => 'title',
      '#value' => $this->label,
    ];
  }

  // Append each polygon to the SVG.
  foreach ($regions as $region => $attributes) {

    // Wrapping with a <g> element allows for metadata to exist alongside the
    // rectangle.
    $build['region'][$region] = [
      '#type' => 'html_tag',
      '#tag' => 'g',
    ];
    $build['region'][$region]['title'] = [
      '#type' => 'html_tag',
      '#tag' => 'title',
      '#value' => $region,
    ];

    // Assemble the rectangle SVG element.
    $build['region'][$region]['rect'] = [
      '#type' => 'html_tag',
      '#tag' => 'rect',
      '#attributes' => [
        'x' => $attributes['x'],
        'y' => $attributes['y'],
        'width' => $attributes['width'],
        'height' => $attributes['height'],
        'stroke-width' => $stroke_width,
        'class' => [
          'layout-icon__region',
          Html::getClass('layout-icon__region--' . $region),
        ],
      ],
    ];
  }
  return $build;
}