diff --git a/core/modules/color/color.module b/core/modules/color/color.module
index 8a8aa5e..32ea150 100644
--- a/core/modules/color/color.module
+++ b/core/modules/color/color.module
@@ -6,13 +6,7 @@
*/
use Drupal\Core\Url;
-use Drupal\Component\Utility\Bytes;
-use Drupal\Component\Utility\Color;
-use Drupal\Component\Utility\Environment;
-use Drupal\Core\Asset\CssOptimizer;
use Drupal\Core\Block\BlockPluginInterface;
-use Drupal\Core\File\Exception\FileException;
-use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Language\LanguageInterface;
use Drupal\Core\Render\Element\Textfield;
@@ -77,8 +71,8 @@ function color_form_system_theme_settings_alter(&$form, FormStateInterface $form
function color_library_info_alter(&$libraries, $extension) {
$themes = array_keys(\Drupal::service('theme_handler')->listInfo());
if (in_array($extension, $themes)) {
- $color_paths = \Drupal::config('color.theme.' . $extension)->get('stylesheets');
- if (!empty($color_paths)) {
+ if ($paths = \Drupal::service('color.theme_decorator')->getThemeFiles($extension)) {
+ $color_paths = $paths['css'];
foreach (array_keys($libraries) as $name) {
if (isset($libraries[$name]['css'])) {
// Override stylesheets.
@@ -155,26 +149,6 @@ function color_get_info($theme) {
}
/**
- * Retrieves the color palette for a particular theme.
- */
-function color_get_palette($theme, $default = FALSE) {
- // Fetch and expand default palette.
- $info = color_get_info($theme);
- $palette = $info['schemes']['default']['colors'];
-
- if ($default) {
- return $palette;
- }
-
- // Load variable.
- // @todo Default color config should be moved to yaml in the theme.
- // Getting a mutable override-free object because this function is only used
- // in forms. Color configuration is used to write CSS to the file system
- // making configuration overrides pointless.
- return \Drupal::configFactory()->getEditable('color.theme.' . $theme)->get('palette') ?: $palette;
-}
-
-/**
* Form constructor for the color configuration form for a particular theme.
*
* @param $theme
@@ -218,7 +192,7 @@ function color_scheme_form($complete_form, FormStateInterface $form_state, $them
}
// Add scheme selector.
- $default_palette = color_get_palette($theme, TRUE);
+ $default_palette = \Drupal::service('color.theme_decorator')->getPalette($theme, TRUE);
$form['scheme'] = [
'#type' => 'select',
'#title' => t('Color set'),
@@ -363,22 +337,28 @@ function color_scheme_form_validate($form, FormStateInterface $form_state) {
* @see color_scheme_form_validate()
*/
function color_scheme_form_submit($form, FormStateInterface $form_state) {
-
- // Avoid color settings spilling over to theme settings.
- $color_settings = ['theme', 'palette', 'scheme'];
- if ($form_state->hasValue('info')) {
- $color_settings[] = 'info';
- }
- foreach ($color_settings as $setting_name) {
- ${$setting_name} = $form_state->getValue($setting_name);
- $form_state->unsetValue($setting_name);
- }
- if (!isset($info)) {
+ if (!$form_state->hasValue('info')) {
return;
}
+ $theme = $form_state->getValue('theme');
+ $palette = $form_state->getValue('palette');
+ $scheme = $form_state->getValue('scheme');
+ $info = $form_state->getValue('info');
+
+ // Avoid color settings spilling over to theme settings.
+ $form_state->unsetValue('theme');
+ $form_state->unsetValue('palette');
+ $form_state->unsetValue('scheme');
+ $form_state->unsetValue('info');
$config = \Drupal::configFactory()->getEditable('color.theme.' . $theme);
+ // We don't need to store anything in config in case of default schema.
+ if ($scheme == 'default') {
+ $config->delete();
+ return;
+ }
+
// Resolve palette.
if ($scheme != '') {
foreach ($palette as $key => $color) {
@@ -389,463 +369,26 @@ function color_scheme_form_submit($form, FormStateInterface $form_state) {
$palette += $info['schemes']['default']['colors'];
}
- // Make sure enough memory is available.
- if (isset($info['base_image'])) {
- // Fetch source image dimensions.
- $source = \Drupal::service('extension.list.theme')->getPath($theme) . '/' . $info['base_image'];
- [$width, $height] = getimagesize($source);
-
- // We need at least a copy of the source and a target buffer of the same
- // size (both at 32bpp).
- $required = $width * $height * 8;
- // We intend to prevent color scheme changes if there isn't enough memory
- // available. memory_get_usage(TRUE) returns a more accurate number than
- // memory_get_usage(), therefore we won't inadvertently reject a color
- // scheme change based on a faulty memory calculation.
- $usage = memory_get_usage(TRUE);
- $memory_limit = ini_get('memory_limit');
- $size = Bytes::toNumber($memory_limit);
- if (!Environment::checkMemoryLimit($usage + $required, $memory_limit)) {
- \Drupal::messenger()->addError(t('There is not enough memory available to PHP to change this theme\'s color scheme. You need at least %size more. Check the PHP documentation for more information.', ['%size' => format_size($usage + $required - $size)]));
- return;
- }
- }
-
- $file_system = \Drupal::service('file_system');
- // Delete old files.
- $files = $config->get('files');
- if (isset($files)) {
- foreach ($files as $file) {
- @$file_system->unlink($file);
- }
- }
- if (isset($file) && $file = dirname($file)) {
- @\Drupal::service('file_system')->rmdir($file);
- }
+ // Saving config will trigger ColorConfigCacheInvalidator, which will
+ // invalidating library_info cache tag, which will then trigger deleting
+ // generated files via ColorCacheTagsInvalidator.
+ // The rebuilding of these files and a corresponding cache entry will then
+ // be triggered by color_block_view_pre_render and color_library_info_alter.
+ // Note that there may be multiple overrides of this config varying e.g. by
+ // domain, so there may be multiple file collections and multiple cache
+ // entries. If you implement varying overrides of this config item, be sure
+ // to add a corresponding cache context, which will then be picked up by
+ // \Drupal::service('color.theme_decorator')->getHash(), so different
+ // color settings will go into different file directories and cache entries.
- // No change in color config, use the standard theme from color.inc.
- if (implode(',', color_get_palette($theme, TRUE)) == implode(',', $palette)) {
- $config->delete();
- return;
- }
-
- // Prepare target locations for generated files.
- $id = $theme . '-' . substr(hash('sha256', serialize($palette) . microtime()), 0, 8);
- $paths['color'] = 'public://color';
- $paths['target'] = $paths['color'] . '/' . $id;
- /** @var \Drupal\Core\File\FileSystemInterface $file_system */
- $file_system = \Drupal::service('file_system');
- foreach ($paths as $path) {
- $file_system->prepareDirectory($path, FileSystemInterface::CREATE_DIRECTORY);
- }
- $paths['target'] = $paths['target'] . '/';
- $paths['id'] = $id;
- $paths['source'] = \Drupal::service('extension.list.theme')->getPath($theme) . '/';
- $paths['files'] = $paths['map'] = [];
-
- // Save palette and logo location.
$config
->set('palette', $palette)
- ->set('logo', $paths['target'] . 'logo.svg')
->save();
-
- // Copy over neutral images.
- /** @var \Drupal\Core\File\FileSystemInterface $file_system */
- $file_system = \Drupal::service('file_system');
- foreach ($info['copy'] as $file) {
- $base = $file_system->basename($file);
- $source = $paths['source'] . $file;
- try {
- $filepath = $file_system->copy($source, $paths['target'] . $base);
- }
- catch (FileException $e) {
- $filepath = FALSE;
- }
- $paths['map'][$file] = $base;
- $paths['files'][] = $filepath;
- }
-
- // Render new images, if image has been provided.
- if (isset($info['base_image'])) {
- _color_render_images($theme, $info, $paths, $palette);
- }
-
- // Rewrite theme stylesheets.
- $css = [];
- foreach ($info['css'] as $stylesheet) {
- // Build a temporary array with CSS files.
- $files = [];
- if (file_exists($paths['source'] . $stylesheet)) {
- $files[] = $stylesheet;
- }
-
- foreach ($files as $file) {
- $css_optimizer = new CssOptimizer(\Drupal::service('file_url_generator'));
- // Aggregate @imports recursively for each configured top level CSS file
- // without optimization. Aggregation and optimization will be
- // handled by drupal_build_css_cache() only.
- $style = $css_optimizer->loadFile($paths['source'] . $file, FALSE);
-
- // Return the path to where this CSS file originated from, stripping
- // off the name of the file at the end of the path.
- $css_optimizer->rewriteFileURIBasePath = base_path() . dirname($paths['source'] . $file) . '/';
-
- // Prefix all paths within this CSS file, ignoring absolute paths.
- $style = preg_replace_callback('/url\([\'"]?(?![a-z]+:|\/+)([^\'")]+)[\'"]?\)/i', [$css_optimizer, 'rewriteFileURI'], $style);
-
- // Rewrite stylesheet with new colors.
- $style = _color_rewrite_stylesheet($theme, $info, $paths, $palette, $style);
- $base_file = $file_system->basename($file);
- $css[] = $paths['target'] . $base_file;
- _color_save_stylesheet($paths['target'] . $base_file, $style, $paths);
- }
- }
-
- // Maintain list of files.
- $config
- ->set('stylesheets', $css)
- ->set('files', $paths['files'])
- ->save();
-}
-
-/**
- * Rewrites the stylesheet to match the colors in the palette.
- */
-function _color_rewrite_stylesheet($theme, &$info, &$paths, $palette, $style) {
- // Prepare color conversion table.
- $conversion = $palette;
- foreach ($conversion as $k => $v) {
- $v = mb_strtolower($v);
- $conversion[$k] = Color::normalizeHexLength($v);
- }
- $default = color_get_palette($theme, TRUE);
-
- // Split off the "Don't touch" section of the stylesheet.
- $split = "Color Module: Don't touch";
- if (strpos($style, $split) !== FALSE) {
- [$style, $fixed] = explode($split, $style);
- }
-
- // Find all colors in the stylesheet and the chunks in between.
- $style = preg_split('/(#[0-9a-f]{6}|#[0-9a-f]{3})/i', $style, -1, PREG_SPLIT_DELIM_CAPTURE);
- $is_color = FALSE;
- $output = '';
- $base = 'base';
-
- // Iterate over all the parts.
- foreach ($style as $chunk) {
- if ($is_color) {
- $chunk = mb_strtolower($chunk);
- $chunk = Color::normalizeHexLength($chunk);
- // Check if this is one of the colors in the default palette.
- if ($key = array_search($chunk, $default)) {
- $chunk = $conversion[$key];
- }
- // Not a pre-set color. Extrapolate from the base.
- else {
- $chunk = _color_shift($palette[$base], $default[$base], $chunk, $info['blend_target']);
- }
- }
- else {
- // Determine the most suitable base color for the next color.
-
- // 'a' declarations. Use link.
- if (preg_match('@[^a-z0-9_-](a)[^a-z0-9_-][^/{]*{[^{]+$@i', $chunk)) {
- $base = 'link';
- }
- // 'color:' styles. Use text.
- elseif (preg_match('/(? $after) {
- $before = base_path() . $paths['source'] . $before;
- $before = preg_replace('`(^|/)(?!../)([^/]+)/../`', '$1', $before);
- $output = str_replace($before, $after, $output);
- }
-
- return $output;
-}
-
-/**
- * Saves the rewritten stylesheet to disk.
- */
-function _color_save_stylesheet($file, $style, &$paths) {
- $filepath = \Drupal::service('file_system')->saveData($style, $file, FileSystemInterface::EXISTS_REPLACE);
- $paths['files'][] = $filepath;
-
- // Set standard file permissions for webserver-generated files.
- \Drupal::service('file_system')->chmod($file);
-}
-
-/**
- * Renders images that match a given palette.
- */
-function _color_render_images($theme, &$info, &$paths, $palette) {
- // Prepare template image.
- $source = $paths['source'] . '/' . $info['base_image'];
- $source = imagecreatefrompng($source);
- $width = imagesx($source);
- $height = imagesy($source);
-
- // Prepare target buffer.
- $target = imagecreatetruecolor($width, $height);
- imagealphablending($target, TRUE);
-
- // Fill regions of solid color.
- foreach ($info['fill'] as $color => $fill) {
- imagefilledrectangle($target, $fill[0], $fill[1], $fill[0] + $fill[2], $fill[1] + $fill[3], _color_gd($target, $palette[$color]));
- }
-
- // Render gradients.
- foreach ($info['gradients'] as $gradient) {
- // Get direction of the gradient.
- if (isset($gradient['direction']) && $gradient['direction'] == 'horizontal') {
- // Horizontal gradient.
- for ($x = 0; $x < $gradient['dimension'][2]; $x++) {
- $color = _color_blend($target, $palette[$gradient['colors'][0]], $palette[$gradient['colors'][1]], $x / ($gradient['dimension'][2] - 1));
- imagefilledrectangle($target, ($gradient['dimension'][0] + $x), $gradient['dimension'][1], ($gradient['dimension'][0] + $x + 1), ($gradient['dimension'][1] + $gradient['dimension'][3]), $color);
- }
- }
- else {
- // Vertical gradient.
- for ($y = 0; $y < $gradient['dimension'][3]; $y++) {
- $color = _color_blend($target, $palette[$gradient['colors'][0]], $palette[$gradient['colors'][1]], $y / ($gradient['dimension'][3] - 1));
- imagefilledrectangle($target, $gradient['dimension'][0], $gradient['dimension'][1] + $y, $gradient['dimension'][0] + $gradient['dimension'][2], $gradient['dimension'][1] + $y + 1, $color);
- }
- }
- }
-
- // Blend over template.
- imagecopy($target, $source, 0, 0, 0, 0, $width, $height);
-
- // Clean up template image.
- imagedestroy($source);
-
- // Cut out slices.
- foreach ($info['slices'] as $file => $coord) {
- [$x, $y, $width, $height] = $coord;
- /** @var \Drupal\Core\File\FileSystemInterface $file_system */
- $file_system = \Drupal::service('file_system');
- $base = $file_system->basename($file);
- $image = $file_system->realpath($paths['target'] . $base);
-
- // Cut out slice.
- if ($file == 'screenshot.png') {
- $slice = imagecreatetruecolor(150, 90);
- imagecopyresampled($slice, $target, 0, 0, $x, $y, 150, 90, $width, $height);
- \Drupal::configFactory()->getEditable('color.theme.' . $theme)
- ->set('screenshot', $image)
- ->save();
- }
- else {
- $slice = imagecreatetruecolor($width, $height);
- imagecopy($slice, $target, 0, 0, $x, $y, $width, $height);
- }
-
- // Save image.
- imagepng($slice, $image);
- imagedestroy($slice);
- $paths['files'][] = $image;
-
- // Set standard file permissions for webserver-generated files.
- $file_system->chmod($image);
-
- // Build before/after map of image paths.
- $paths['map'][$file] = $base;
- }
-
- // Clean up target buffer.
- imagedestroy($target);
-}
-
-/**
- * Shifts a given color, using a reference pair and a target blend color.
- *
- * Note: this function is significantly different from the JS version, as it
- * is written to match the blended images perfectly.
- *
- * Constraint: if (ref2 == target + (ref1 - target) * delta) for some fraction
- * delta then (return == target + (given - target) * delta).
- *
- * Loose constraint: Preserve relative positions in saturation and luminance
- * space.
- */
-function _color_shift($given, $ref1, $ref2, $target) {
- // We assume that ref2 is a blend of ref1 and target and find
- // delta based on the length of the difference vectors.
-
- // delta = 1 - |ref2 - ref1| / |white - ref1|
- $target = _color_unpack($target, TRUE);
- $ref1 = _color_unpack($ref1, TRUE);
- $ref2 = _color_unpack($ref2, TRUE);
- $numerator = 0;
- $denominator = 0;
- for ($i = 0; $i < 3; ++$i) {
- $numerator += ($ref2[$i] - $ref1[$i]) * ($ref2[$i] - $ref1[$i]);
- $denominator += ($target[$i] - $ref1[$i]) * ($target[$i] - $ref1[$i]);
- }
- $delta = ($denominator > 0) ? (1 - sqrt($numerator / $denominator)) : 0;
-
- // Calculate the color that ref2 would be if the assumption was true.
- for ($i = 0; $i < 3; ++$i) {
- $ref3[$i] = $target[$i] + ($ref1[$i] - $target[$i]) * $delta;
- }
-
- // If the assumption is not true, there is a difference between ref2 and ref3.
- // We measure this in HSL space. Notation: x' = hsl(x).
- $ref2 = _color_rgb2hsl($ref2);
- $ref3 = _color_rgb2hsl($ref3);
- for ($i = 0; $i < 3; ++$i) {
- $shift[$i] = $ref2[$i] - $ref3[$i];
- }
-
- // Take the given color, and blend it towards the target.
- $given = _color_unpack($given, TRUE);
- for ($i = 0; $i < 3; ++$i) {
- $result[$i] = $target[$i] + ($given[$i] - $target[$i]) * $delta;
- }
-
- // Finally, we apply the extra shift in HSL space.
- // Note: if ref2 is a pure blend of ref1 and target, then |shift| = 0.
- $result = _color_rgb2hsl($result);
- for ($i = 0; $i < 3; ++$i) {
- $result[$i] = min(1, max(0, $result[$i] + $shift[$i]));
- }
- $result = _color_hsl2rgb($result);
-
- // Return hex color.
- return _color_pack($result, TRUE);
}
/**
- * Converts a hex triplet into a GD color.
+ * Implements hook_cache_flush().
*/
-function _color_gd($img, $hex) {
- $c = array_merge([$img], _color_unpack($hex));
- return call_user_func_array('imagecolorallocate', $c);
-}
-
-/**
- * Blends two hex colors and returns the GD color.
- */
-function _color_blend($img, $hex1, $hex2, $alpha) {
- $in1 = _color_unpack($hex1);
- $in2 = _color_unpack($hex2);
- $out = [$img];
- for ($i = 0; $i < 3; ++$i) {
- $out[] = $in1[$i] + ($in2[$i] - $in1[$i]) * $alpha;
- }
-
- return call_user_func_array('imagecolorallocate', $out);
-}
-
-/**
- * Converts a hex color into an RGB triplet.
- */
-function _color_unpack($hex, $normalize = FALSE) {
- $hex = substr($hex, 1);
- if (strlen($hex) == 3) {
- $hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
- }
- $c = hexdec($hex);
- for ($i = 16; $i >= 0; $i -= 8) {
- $out[] = (($c >> $i) & 0xFF) / ($normalize ? 255 : 1);
- }
-
- return $out;
-}
-
-/**
- * Converts an RGB triplet to a hex color.
- */
-function _color_pack($rgb, $normalize = FALSE) {
- $out = 0;
- foreach ($rgb as $k => $v) {
- $out |= ((int) ($v * ($normalize ? 255 : 1)) << (16 - $k * 8));
- }
-
- return '#' . str_pad(dechex($out), 6, 0, STR_PAD_LEFT);
-}
-
-/**
- * Converts an HSL triplet into RGB.
- */
-function _color_hsl2rgb($hsl) {
- $h = $hsl[0];
- $s = $hsl[1];
- $l = $hsl[2];
- $m2 = ($l <= 0.5) ? $l * ($s + 1) : $l + $s - $l * $s;
- $m1 = $l * 2 - $m2;
-
- return [
- _color_hue2rgb($m1, $m2, $h + 0.33333),
- _color_hue2rgb($m1, $m2, $h),
- _color_hue2rgb($m1, $m2, $h - 0.33333),
- ];
-}
-
-/**
- * Helper function for _color_hsl2rgb().
- */
-function _color_hue2rgb($m1, $m2, $h) {
- $h = ($h < 0) ? $h + 1 : (($h > 1) ? $h - 1 : $h);
- if ($h * 6 < 1) {
- return $m1 + ($m2 - $m1) * $h * 6;
- }
- if ($h * 2 < 1) {
- return $m2;
- }
- if ($h * 3 < 2) {
- return $m1 + ($m2 - $m1) * (0.66666 - $h) * 6;
- }
-
- return $m1;
-}
-
-/**
- * Converts an RGB triplet to HSL.
- */
-function _color_rgb2hsl($rgb) {
- $r = $rgb[0];
- $g = $rgb[1];
- $b = $rgb[2];
- $min = min($r, min($g, $b));
- $max = max($r, max($g, $b));
- $delta = $max - $min;
- $l = ($min + $max) / 2;
- $s = 0;
-
- if ($l > 0 && $l < 1) {
- $s = $delta / ($l < 0.5 ? (2 * $l) : (2 - 2 * $l));
- }
-
- $h = 0;
- if ($delta > 0) {
- if ($max == $r && $max != $g) {
- $h += ($g - $b) / $delta;
- }
- if ($max == $g && $max != $b) {
- $h += (2 + ($b - $r) / $delta);
- }
- if ($max == $b && $max != $r) {
- $h += (4 + ($r - $g) / $delta);
- }
- $h /= 6;
- }
-
- return [$h, $s, $l];
+function color_cache_flush() {
+ \Drupal::service('color.theme_decorator')->unlinkGeneratedFiles();
}
diff --git a/core/modules/color/color.services.yml b/core/modules/color/color.services.yml
index 9575785..3a58d96 100644
--- a/core/modules/color/color.services.yml
+++ b/core/modules/color/color.services.yml
@@ -4,3 +4,8 @@ services:
arguments: ['@cache_tags.invalidator']
tags:
- { name: event_subscriber }
+ color.theme_decorator:
+ class: Drupal\color\ColorThemeDecorator
+ arguments: ['@config.factory', '@file_system', '@cache.default', '@extension.list.theme', '@file_url_generator']
+ tags:
+ - { name: cache_tags_invalidator}
diff --git a/core/modules/color/config/schema/color.schema.yml b/core/modules/color/config/schema/color.schema.yml
index 07ae1cc..1cabf53 100644
--- a/core/modules/color/config/schema/color.schema.yml
+++ b/core/modules/color/config/schema/color.schema.yml
@@ -7,14 +7,3 @@ color.theme.*:
label: 'Palette settings'
sequence:
type: color_hex
- logo:
- type: path
- label: 'Logo path'
- stylesheets:
- type: sequence
- sequence:
- type: path
- files:
- type: sequence
- sequence:
- type: path
diff --git a/core/modules/color/migrations/d7_color.yml b/core/modules/color/migrations/d7_color.yml
index 9bc7af6..8861ae6 100644
--- a/core/modules/color/migrations/d7_color.yml
+++ b/core/modules/color/migrations/d7_color.yml
@@ -22,14 +22,17 @@ process:
plugin: extract
index:
- 2
- # Skip if the variable name ends in 'screenshot'.
- screenshot:
+ # Skip if the variable name is old.
+ outdated:
-
plugin: static_map
source: '@element_name'
bypass: true
map:
screenshot: false
+ files: false
+ logo: false
+ stylesheets: false
-
plugin: skip_on_empty
method: row
diff --git a/core/modules/color/src/ColorSystemBrandingBlockAlter.php b/core/modules/color/src/ColorSystemBrandingBlockAlter.php
index 337c6bc..d322aae 100644
--- a/core/modules/color/src/ColorSystemBrandingBlockAlter.php
+++ b/core/modules/color/src/ColorSystemBrandingBlockAlter.php
@@ -23,9 +23,9 @@ public static function preRender($build) {
->applyTo($build);
// Override logo.
- $logo = $config->get('logo');
- if ($logo && $build['content']['site_logo'] && preg_match('!' . $theme_key . '/logo.svg$!', $build['content']['site_logo']['#uri'])) {
- $build['content']['site_logo']['#uri'] = \Drupal::service('file_url_generator')->generateString($logo);
+ $paths = \Drupal::service('color.theme_decorator')->getThemeFiles($theme_key);
+ if (!empty($paths['logo']) && $build['content']['site_logo'] && preg_match('!' . $theme_key . '/logo.svg$!', $build['content']['site_logo']['#uri'])) {
+ $build['content']['site_logo']['#uri'] = \Drupal::service('file_url_generator')->generateString($paths['logo']);
}
return $build;
diff --git a/core/modules/color/src/ColorThemeDecorator.php b/core/modules/color/src/ColorThemeDecorator.php
new file mode 100644
index 0000000..dfda913
--- /dev/null
+++ b/core/modules/color/src/ColorThemeDecorator.php
@@ -0,0 +1,649 @@
+configFactory = $config_factory;
+ $this->fileSystem = $file_system;
+ $this->cache = $cache;
+ $this->themeExtensionList = $themeExtensionList;
+ $this->fileUrlGenerator = $fileUrlGenerator;
+ }
+
+ /**
+ * Invalidate tags.
+ *
+ * If library_info is invalidated, delete our generated files.
+ *
+ * @param array $tags
+ * The tags to invalidate.
+ */
+ public function invalidateTags(array $tags) {
+ if (in_array('library_info', $tags)) {
+ $this->unlinkGeneratedFiles();
+ }
+ }
+
+ /**
+ * Delete generated files.
+ */
+ public function unlinkGeneratedFiles() {
+ $dirPath = 'public://color';
+ if (is_dir($dirPath)) {
+ foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($dirPath, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::CHILD_FIRST) as $path) {
+ $path->isDir() && !$path->isLink() ? rmdir($path->getPathname()) : unlink($path->getPathname());
+ }
+ }
+ }
+
+ /**
+ * Get theme files.
+ *
+ * @param string $theme
+ * The theme name.
+ */
+ public function getThemeFiles($theme) {
+ $config = $this->configFactory->get('color.theme.' . $theme);
+ $palette = $config->get('palette');
+ if (empty($palette)) {
+ return FALSE;
+ }
+ return $this->ensureFiles($theme, $palette, color_get_info($theme));
+ }
+
+ /**
+ * Generate files if needed.
+ *
+ * @param string $theme
+ * The theme name.
+ * @param array|null $palette
+ * The palette of color codes.
+ * @param array $info
+ * Color info from the theme.
+ *
+ * @return array|null
+ * An array of paths information, if available.
+ */
+ public function ensureFiles($theme, $palette, $info) {
+ if (!$palette) {
+ return NULL;
+ }
+ $hash = self::getHash($theme);
+ $cid = "color:paths:$hash";
+ if ($data = $this->cache->get($cid)) {
+ return $data->data;
+ }
+
+ // Prepare target locations for generated files.
+ $paths['color'] = 'public://color';
+ $paths['target'] = $paths['color'] . '/' . $hash;
+ foreach ($paths as $path) {
+ $this->fileSystem->prepareDirectory($path, FileSystemInterface::CREATE_DIRECTORY);
+ }
+ $paths['target'] = $paths['target'] . '/';
+ $paths['id'] = $hash;
+ $paths['source'] = $this->themeExtensionList->getPath($theme) . '/';
+ $paths['files'] = $paths['map'] = [];
+
+ // Copy over neutral images.
+ foreach ($info['copy'] as $file) {
+ $base = $this->fileSystem->basename($file);
+ $source = $paths['source'] . $file;
+ try {
+ $filepath = $this->fileSystem->copy($source, $paths['target'] . $base);
+ }
+ catch (FileException $e) {
+ $filepath = FALSE;
+ }
+ $paths['map'][$file] = $base;
+ $paths['files'][] = $filepath;
+ }
+
+ // Render new images, if image has been provided.
+ if (isset($info['base_image'])) {
+ $this->renderImages($theme, $info, $paths, $palette);
+ }
+
+ // Rewrite theme stylesheets.
+ $paths['css'] = [];
+ foreach ($info['css'] as $stylesheet) {
+ $source_css = $paths['source'] . $stylesheet;
+ $target_css = $paths['target'] . $this->fileSystem->basename($stylesheet);
+ if (file_exists($source_css)) {
+ $css_optimizer = new CssOptimizer($this->fileUrlGenerator);
+ // Aggregate @imports recursively for each configured top level CSS file
+ // without optimization. Aggregation and optimization will be
+ // handled by drupal_build_css_cache() only.
+ $style = $css_optimizer->loadFile($source_css, FALSE);
+
+ // Return the path to where this CSS file originated from, stripping
+ // off the name of the file at the end of the path.
+ $css_optimizer->rewriteFileURIBasePath = base_path() . dirname($source_css) . '/';
+
+ // Prefix all paths within this CSS file, ignoring absolute paths.
+ $style = preg_replace_callback('/url\([\'"]?(?![a-z]+:|\/+)([^\'")]+)[\'"]?\)/i', [
+ $css_optimizer,
+ 'rewriteFileURI',
+ ], $style);
+
+ // Rewrite stylesheet with new colors.
+ $style = $this->rewriteStyleSheet($theme, $info, $paths, $palette, $style);
+ $filepath = $this->fileSystem->saveData($style, $target_css, FileSystemInterface::EXISTS_REPLACE);
+ $this->fileSystem->chmod($target_css);
+ }
+ $paths['css'][] = $target_css;
+ $paths['files'][] = $filepath;
+ }
+ $this->cache->set($cid, $paths, CacheBackendInterface::CACHE_PERMANENT, ['library_info']);
+
+ return $paths;
+ }
+
+ /**
+ * Get a hash that varies on theme and config cache contexts.
+ *
+ * @param string $theme
+ * The theme.
+ *
+ * @return string
+ * The hash.
+ *
+ * @todo
+ * Is it possible to replace "\Drupal::service('cache_contexts_manager')" to
+ * something else?.
+ */
+ public static function getHash($theme) {
+ /** @var \Drupal\Core\Cache\Context\CacheContextsManager $cache_contexts_manager */
+ $cache_contexts_manager = \Drupal::service('cache_contexts_manager');
+ $config = \Drupal::configFactory()->get('color.theme.' . $theme);
+ $cache_contexts = array_merge(['theme'], $config->getCacheContexts());
+ $cache_context_keys = $cache_contexts_manager->convertTokensToKeys($cache_contexts)->getKeys();
+ $hash = hash('sha256', serialize($cache_context_keys));
+
+ return $hash;
+ }
+
+ /**
+ * Render images matching a given palette.
+ *
+ * @param string $theme
+ * The theme name.
+ * @param array $info
+ * The theme info.
+ * @param array $paths
+ * The theme file paths.
+ * @param array $palette
+ * Theme color palette.
+ */
+ private function renderImages($theme, &$info, &$paths, $palette) {
+ // Prepare template image.
+ $source = $paths['source'] . '/' . $info['base_image'];
+ $source = imagecreatefrompng($source);
+ $width = imagesx($source);
+ $height = imagesy($source);
+
+ // Prepare target buffer.
+ $target = imagecreatetruecolor($width, $height);
+ imagealphablending($target, TRUE);
+
+ // Fill regions of solid color.
+ foreach ($info['fill'] as $color => $fill) {
+ imagefilledrectangle($target, $fill[0], $fill[1], $fill[0] + $fill[2], $fill[1] + $fill[3], $this->gd($target, $palette[$color]));
+ }
+
+ // Render gradients.
+ foreach ($info['gradients'] as $gradient) {
+ // Get direction of the gradient.
+ if (isset($gradient['direction']) && $gradient['direction'] == 'horizontal') {
+ // Horizontal gradient.
+ for ($x = 0; $x < $gradient['dimension'][2]; $x++) {
+ $color = $this->blend($target, $palette[$gradient['colors'][0]], $palette[$gradient['colors'][1]], $x / ($gradient['dimension'][2] - 1));
+ imagefilledrectangle($target, ($gradient['dimension'][0] + $x), $gradient['dimension'][1], ($gradient['dimension'][0] + $x + 1), ($gradient['dimension'][1] + $gradient['dimension'][3]), $color);
+ }
+ }
+ else {
+ // Vertical gradient.
+ for ($y = 0; $y < $gradient['dimension'][3]; $y++) {
+ $color = $this->blend($target, $palette[$gradient['colors'][0]], $palette[$gradient['colors'][1]], $y / ($gradient['dimension'][3] - 1));
+ imagefilledrectangle($target, $gradient['dimension'][0], $gradient['dimension'][1] + $y, $gradient['dimension'][0] + $gradient['dimension'][2], $gradient['dimension'][1] + $y + 1, $color);
+ }
+ }
+ }
+
+ // Blend over template.
+ imagecopy($target, $source, 0, 0, 0, 0, $width, $height);
+
+ // Clean up template image.
+ imagedestroy($source);
+
+ // Cut out slices.
+ foreach ($info['slices'] as $file => $coord) {
+ list($x, $y, $width, $height) = $coord;
+ $base = $this->fileSystem->basename($file);
+ $image = $this->fileSystem->realpath($paths['target'] . $base);
+
+ // Cut out slice.
+ if ($file == 'screenshot.png') {
+ $slice = imagecreatetruecolor(150, 90);
+ imagecopyresampled($slice, $target, 0, 0, $x, $y, 150, 90, $width, $height);
+ $this->configFactory->getEditable('color.theme.' . $theme)
+ ->set('screenshot', $image)
+ ->save();
+ }
+ else {
+ $slice = imagecreatetruecolor($width, $height);
+ imagecopy($slice, $target, 0, 0, $x, $y, $width, $height);
+ }
+
+ // Save image.
+ imagepng($slice, $image);
+ imagedestroy($slice);
+ $paths['files'][] = $image;
+
+ // Set standard file permissions for webserver-generated files.
+ $this->fileSystem->chmod($image);
+
+ // Build before/after map of image paths.
+ $paths['map'][$file] = $base;
+ }
+
+ // Clean up target buffer.
+ imagedestroy($target);
+ }
+
+ /**
+ * Rewrites the stylesheet to match the colors in the palette.
+ *
+ * @param string $theme
+ * The theme name.
+ * @param array $info
+ * The theme info.
+ * @param array $paths
+ * Theme file paths.
+ * @param array $palette
+ * Colors to be used.
+ * @param string $style
+ * Style to be used.
+ */
+ private function rewriteStyleSheet($theme, &$info, $paths, $palette, $style) {
+ // Prepare color conversion table.
+ $conversion = $palette;
+ foreach ($conversion as $k => $v) {
+ $v = mb_strtolower($v);
+ $conversion[$k] = Color::normalizeHexLength($v);
+ }
+ $default = $this->getPalette($theme, TRUE);
+
+ // Split off the "Don't touch" section of the stylesheet.
+ $split = "Color Module: Don't touch";
+ if (strpos($style, $split) !== FALSE) {
+ list($style, $fixed) = explode($split, $style);
+ }
+
+ // Find all colors in the stylesheet and the chunks in between.
+ $style = preg_split('/(#[0-9a-f]{6}|#[0-9a-f]{3})/i', $style, -1, PREG_SPLIT_DELIM_CAPTURE);
+ $is_color = FALSE;
+ $output = '';
+ $base = 'base';
+
+ // Iterate over all the parts.
+ foreach ($style as $chunk) {
+ if ($is_color) {
+ $chunk = mb_strtolower($chunk);
+ $chunk = Color::normalizeHexLength($chunk);
+ // Check if this is one of the colors in the default palette.
+ if ($key = array_search($chunk, $default)) {
+ $chunk = $conversion[$key];
+ }
+ // Not a pre-set color. Extrapolate from the base.
+ else {
+ $chunk = $this->shift($palette[$base], $default[$base], $chunk, $info['blend_target']);
+ }
+ }
+ else {
+ // Determine the most suitable base color for the next color.
+ // 'a' declarations. Use link.
+ if (preg_match('@[^a-z0-9_-](a)[^a-z0-9_-][^/{]*{[^{]+$@i', $chunk)) {
+ $base = 'link';
+ }
+ // 'color:' styles. Use text.
+ elseif (preg_match('/(? $after) {
+ $before = base_path() . $paths['source'] . $before;
+ $before = preg_replace('`(^|/)(?!../)([^/]+)/../`', '$1', $before);
+ $output = str_replace($before, $after, $output);
+ }
+
+ return $output;
+ }
+
+ /**
+ * Retrieves the color palette for a particular theme.
+ *
+ * @param string $theme
+ * The theme name.
+ * @param bool $default
+ * Boolean indicating if default palette should be returned.
+ */
+ public function getPalette($theme, $default = FALSE) {
+ // Fetch and expand default palette.
+ $info = color_get_info($theme);
+ $palette = $info['schemes']['default']['colors'];
+
+ if ($default) {
+ return $palette;
+ }
+
+ // Load variable.
+ // @todo Default color config should be moved to yaml in the theme.
+ // Getting a mutable override-free object because this function is only used
+ // in forms. Color configuration is used to write CSS to the file system
+ // making configuration overrides pointless.
+ return $this->configFactory->getEditable('color.theme.' . $theme)->get('palette') ?: $palette;
+ }
+
+ /**
+ * Converts a hex triplet into a GD color.
+ *
+ * @param resource $img
+ * The image to process.
+ * @param string $hex
+ * The color in hexadecimal format.
+ */
+ private function gd($img, $hex) {
+ $c = array_merge([$img], $this->hexToRgb($hex));
+
+ return call_user_func_array('imagecolorallocate', $c);
+ }
+
+ /**
+ * Blends two hex colors and returns the GD color.
+ *
+ * @param resource $img
+ * The image to process.
+ * @param string $hex1
+ * The color in hexadecimal format.
+ * @param string $hex2
+ * The color in hexadecimal format.
+ * @param string $alpha
+ * The alpha.
+ */
+ private function blend($img, $hex1, $hex2, $alpha) {
+ $in1 = $this->hexToRgb($hex1);
+ $in2 = $this->hexToRgb($hex2);
+ $out = [$img];
+ for ($i = 0; $i < 3; ++$i) {
+ $out[] = $in1[$i] + ($in2[$i] - $in1[$i]) * $alpha;
+ }
+
+ return call_user_func_array('imagecolorallocate', $out);
+ }
+
+ /**
+ * Converts an RGB triplet to a hex color.
+ *
+ * @param string $rgb
+ * The color in RGB format.
+ * @param bool $normalize
+ * If color should be normalized.
+ */
+ public function rgbToHex($rgb, $normalize = FALSE) {
+ $out = 0;
+ foreach ($rgb as $k => $v) {
+ $out |= ((int) round($v * ($normalize ? 255 : 1)) << (16 - $k * 8));
+ }
+
+ return '#' . str_pad(dechex($out), 6, 0, STR_PAD_LEFT);
+ }
+
+ /**
+ * Converts a hex color into an RGB triplet.
+ *
+ * @param string $hex
+ * The color in hex format.
+ * @param bool $normalize
+ * If color should be normalized.
+ */
+ public function hexToRgb($hex, $normalize = FALSE) {
+ $hex = substr($hex, 1);
+ if (strlen($hex) == 3) {
+ $hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
+ }
+ $c = hexdec($hex);
+ for ($i = 16; $i >= 0; $i -= 8) {
+ $out[] = (($c >> $i) & 0xFF) / ($normalize ? 255 : 1);
+ }
+
+ return $out;
+ }
+
+ /**
+ * Shifts a given color, using a reference pair and a target blend color.
+ *
+ * Note: this function is significantly different from the JS version, as it
+ * is written to match the blended images perfectly.
+ *
+ * Constraint: if (ref2 == target + (ref1 - target) * delta) for some fraction
+ * delta then (return == target + (given - target) * delta).
+ *
+ * Loose constraint: Preserve relative positions in saturation and luminance
+ * space.
+ *
+ * @param string $given
+ * The given color.
+ * @param string $ref1
+ * The reference pair.
+ * @param string $ref2
+ * The reference pair.
+ * @param string $target
+ * A target blend color.
+ */
+ private function shift($given, $ref1, $ref2, $target) {
+ // We assume that ref2 is a blend of ref1 and target and find
+ // delta based on the length of the difference vectors.
+ // Delta = 1 - |ref2 - ref1| / |white - ref1|.
+ $target = $this->hexToRgb($target, TRUE);
+ $ref1 = $this->hexToRgb($ref1, TRUE);
+ $ref2 = $this->hexToRgb($ref2, TRUE);
+ $numerator = 0;
+ $denominator = 0;
+ for ($i = 0; $i < 3; ++$i) {
+ $numerator += ($ref2[$i] - $ref1[$i]) * ($ref2[$i] - $ref1[$i]);
+ $denominator += ($target[$i] - $ref1[$i]) * ($target[$i] - $ref1[$i]);
+ }
+ $delta = ($denominator > 0) ? (1 - sqrt($numerator / $denominator)) : 0;
+
+ // Calculate the color that ref2 would be if the assumption was true.
+ for ($i = 0; $i < 3; ++$i) {
+ $ref3[$i] = $target[$i] + ($ref1[$i] - $target[$i]) * $delta;
+ }
+
+ // If the assumption is not true, there is a difference between ref2 and ref3.
+ // We measure this in HSL space. Notation: x' = hsl(x).
+ $ref2 = $this->rgbToHsl($ref2);
+ $ref3 = $this->rgbToHsl($ref3);
+ for ($i = 0; $i < 3; ++$i) {
+ $shift[$i] = $ref2[$i] - $ref3[$i];
+ }
+
+ // Take the given color, and blend it towards the target.
+ $given = $this->hexToRgb($given, TRUE);
+ for ($i = 0; $i < 3; ++$i) {
+ $result[$i] = $target[$i] + ($given[$i] - $target[$i]) * $delta;
+ }
+
+ // Finally, we apply the extra shift in HSL space.
+ // Note: if ref2 is a pure blend of ref1 and target, then |shift| = 0.
+ $result = $this->rgbToHsl($result);
+ for ($i = 0; $i < 3; ++$i) {
+ $result[$i] = min(1, max(0, $result[$i] + $shift[$i]));
+ }
+ $result = $this->hslToRgb($result);
+
+ // Return hex color.
+ return $this->rgbToHex($result, TRUE);
+ }
+
+ /**
+ * Converts an RGB triplet to HSL.
+ *
+ * @param array $rgb
+ * Color to be processed.
+ */
+ private function rgbToHsl(array $rgb) {
+ $r = $rgb[0];
+ $g = $rgb[1];
+ $b = $rgb[2];
+ $min = min($r, min($g, $b));
+ $max = max($r, max($g, $b));
+ $delta = $max - $min;
+ $l = ($min + $max) / 2;
+ $s = 0;
+
+ if ($l > 0 && $l < 1) {
+ $s = $delta / ($l < 0.5 ? (2 * $l) : (2 - 2 * $l));
+ }
+
+ $h = 0;
+ if ($delta > 0) {
+ if ($max == $r && $max != $g) {
+ $h += ($g - $b) / $delta;
+ }
+ if ($max == $g && $max != $b) {
+ $h += (2 + ($b - $r) / $delta);
+ }
+ if ($max == $b && $max != $r) {
+ $h += (4 + ($r - $g) / $delta);
+ }
+ $h /= 6;
+ }
+
+ return [$h, $s, $l];
+ }
+
+ /**
+ * Converts an HSL triplet into RGB.
+ *
+ * @param array $hsl
+ * HSL triplet.
+ */
+ private function hslToRgb(array $hsl) {
+ $h = $hsl[0];
+ $s = $hsl[1];
+ $l = $hsl[2];
+ $m2 = ($l <= 0.5) ? $l * ($s + 1) : $l + $s - $l * $s;
+ $m1 = $l * 2 - $m2;
+
+ return [
+ $this->hueToRgb($m1, $m2, $h + 0.33333),
+ $this->hueToRgb($m1, $m2, $h),
+ $this->hueToRgb($m1, $m2, $h - 0.33333),
+ ];
+ }
+
+ /**
+ * Helper function for ::hueToRgb().
+ *
+ * @param int $m1
+ * The m1.
+ * @param int $m2
+ * The m2.
+ * @param int $h
+ * The hueToRgb.
+ */
+ private function hueToRgb($m1, $m2, $h) {
+ $h = ($h < 0) ? $h + 1 : (($h > 1) ? $h - 1 : $h);
+ if ($h * 6 < 1) {
+ return $m1 + ($m2 - $m1) * $h * 6;
+ }
+ if ($h * 2 < 1) {
+ return $m2;
+ }
+ if ($h * 3 < 2) {
+ return $m1 + ($m2 - $m1) * (0.66666 - $h) * 6;
+ }
+
+ return $m1;
+ }
+
+}
diff --git a/core/modules/color/tests/src/Functional/ColorTest.php b/core/modules/color/tests/src/Functional/ColorTest.php
index 7925f56..698ba72 100644
--- a/core/modules/color/tests/src/Functional/ColorTest.php
+++ b/core/modules/color/tests/src/Functional/ColorTest.php
@@ -90,9 +90,13 @@ protected function setUp(): void {
* Tests the Color module functionality.
*/
public function testColor() {
+ $theme_initializer = $this->container->get('theme.initialization');
+ $themeManager = $this->container->get('theme.manager');
foreach ($this->themes as $theme => $test_values) {
+ $themeManager->setActiveTheme($theme_initializer->getActiveThemeByName($theme));
$this->_testColor($theme, $test_values);
}
+ $themeManager->setActiveTheme($theme_initializer->getActiveThemeByName($this->defaultTheme));
}
/**
@@ -109,6 +113,7 @@ public function _testColor($theme, $test_values) {
->set('default', $theme)
->save();
$settings_path = 'admin/appearance/settings/' . $theme;
+ $colorThemDecorator = $this->container->get('color.theme_decorator');
$this->drupalLogin($this->bigUser);
$this->drupalGet($settings_path);
@@ -120,11 +125,11 @@ public function _testColor($theme, $test_values) {
$this->submitForm($edit, 'Save configuration');
$this->drupalGet('');
- $stylesheets = $this->config('color.theme.' . $theme)->get('stylesheets');
+ $themeFiles = $colorThemDecorator->getThemeFiles($theme);
/** @var \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator */
$file_url_generator = \Drupal::service('file_url_generator');
// Make sure the color stylesheet is included in the content.
- foreach ($stylesheets as $stylesheet) {
+ foreach ($themeFiles['css'] as $stylesheet) {
$this->assertSession()->responseMatches('|' . $file_url_generator->generateString($stylesheet) . '|');
$stylesheet_content = implode("\n", file($stylesheet));
$this->assertStringContainsString('color: #123456', $stylesheet_content, 'Make sure the color we changed is in the color stylesheet. (' . $theme . ')');
@@ -137,8 +142,8 @@ public function _testColor($theme, $test_values) {
$this->submitForm($edit, 'Save configuration');
$this->drupalGet('');
- $stylesheets = $this->config('color.theme.' . $theme)->get('stylesheets');
- foreach ($stylesheets as $stylesheet) {
+ $themeFiles = $colorThemDecorator->getThemeFiles($theme);
+ foreach ($themeFiles['css'] as $stylesheet) {
$stylesheet_content = implode("\n", file($stylesheet));
$this->assertStringContainsString('color: ' . $test_values['scheme_color'], $stylesheet_content, 'Make sure the color we changed is in the color stylesheet. (' . $theme . ')');
}
@@ -210,14 +215,8 @@ public function testOverrideAndResetScheme() {
->set('default', 'bartik')
->save();
- // Place branding block with site name and slogan into header region.
- $this->drupalPlaceBlock('system_branding_block', ['region' => 'header']);
-
$this->drupalGet('');
- // Make sure the color logo is not being used.
- $this->assertSession()->responseNotContains('files/color/bartik-');
- // Make sure the original bartik logo exists.
- $this->assertSession()->responseContains('bartik/logo.svg');
+ $this->assertSession()->responseNotContains('files/color');
// Log in and set the color scheme to 'slate'.
$this->drupalLogin($this->bigUser);
@@ -242,10 +241,7 @@ public function testOverrideAndResetScheme() {
// Log out and ensure there is no color and we have the original logo.
$this->drupalLogout();
$this->drupalGet('');
- // Make sure the color logo is not being used.
- $this->assertSession()->responseNotContains('files/color/bartik-');
- // Make sure the original bartik logo exists.
- $this->assertSession()->responseContains('bartik/logo.svg');
+ $this->assertSession()->responseNotContains('files/color');
}
}
diff --git a/core/modules/color/tests/src/Kernel/Migrate/d7/MigrateColorTest.php b/core/modules/color/tests/src/Kernel/Migrate/d7/MigrateColorTest.php
index d33f2ab..0149294 100644
--- a/core/modules/color/tests/src/Kernel/Migrate/d7/MigrateColorTest.php
+++ b/core/modules/color/tests/src/Kernel/Migrate/d7/MigrateColorTest.php
@@ -39,12 +39,6 @@ protected function getFixtureFilePath() {
public function testMigrateColor() {
// Test Bartik migration.
$config = $this->config('color.theme.bartik');
- $files = [
- 'public://color/bartik-e0e23ad7/logo.png',
- 'public://color/bartik-e0e23ad7/colors.css',
- ];
- $this->assertSame($files, $config->get('files'));
- $this->assertSame('public://color/bartik-e0e23ad7/logo.png', $config->get('logo'));
$palette = [
'top' => '#d0d0d0',
'bottom' => '#c2c4c5',
@@ -57,7 +51,6 @@ public function testMigrateColor() {
'link' => '#019dbf',
];
$this->assertSame($palette, $config->get('palette'));
- $this->assertSame(['public://color/bartik-e0e23ad7/colors.css'], $config->get('stylesheets'));
// Test that the screenshot was not migrated.
$this->assertNull($config->get('screenshot'));