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<?php |
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namespace ABlocks\Classes; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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use ABlocks\Classes\AssetsGenerator; |
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|
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class CssGenerator { |
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private $font_category; |
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private $custom_css = ''; |
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private $parent_class; |
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private $class_styles = []; |
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|
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public function __construct( $attributes = [] ) { |
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if ( ! isset( $attributes['block_id'] ) ) { |
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return; |
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} |
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$this->parent_class = '.ablocks-block-' . $attributes['block_id']; |
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if ( isset( $attributes['_custom_css'] ) ) { |
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$this->custom_css = $attributes['_custom_css']; |
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} |
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|
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$this->font_category = include ABLOCKS_BLOCKS_DIR_PATH . 'fonts.php'; |
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|
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// Alert - don't touch here |
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if ( isset( $attributes['_margin'] ) ) { // check has advanced tab or not |
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$this->add_class_styles( |
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'{{WRAPPER}}', |
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BlockGlobal::get_wrapper_css( $attributes ), |
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BlockGlobal::get_wrapper_css( $attributes, 'Tablet' ), |
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BlockGlobal::get_wrapper_css( $attributes, 'Mobile' ) |
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); |
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$this->add_class_styles( |
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'{{WRAPPER}}:hover', |
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BlockGlobal::get_wrapper_hover_css( $attributes ), |
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BlockGlobal::get_wrapper_hover_css( $attributes, 'Tablet' ), |
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BlockGlobal::get_wrapper_hover_css( $attributes, 'Mobile' ) |
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); |
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$this->add_class_styles( |
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'{{WRAPPER}}.ablocks-hide-on-desktop,{{WRAPPER}}.ablocks-hide-on-tablet,{{WRAPPER}}.ablocks-hide-on-mobile', |
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BlockGlobal::get_wrapper_device_responsive_css( $attributes ), |
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BlockGlobal::get_wrapper_device_responsive_css( $attributes, 'Tablet' ), |
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BlockGlobal::get_wrapper_device_responsive_css( $attributes, 'Mobile' ) |
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); |
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$this->add_class_styles( |
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'{{WRAPPER}}:hover > .ablocks-block-container', |
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BlockGlobal::get_container_hover_css( $attributes ), |
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BlockGlobal::get_container_hover_css( $attributes, 'Tablet' ), |
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BlockGlobal::get_container_hover_css( $attributes, 'Mobile' ) |
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); |
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$this->add_class_styles( |
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'{{WRAPPER}} > .ablocks-block-container', |
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BlockGlobal::get_container_css( $attributes ), |
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BlockGlobal::get_container_css( $attributes, 'Tablet' ), |
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BlockGlobal::get_container_css( $attributes, 'Mobile' ) |
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); |
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}//end if |
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} |
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|
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public function add_class_styles( $class_name, $desktop_styles, $tablet_styles = [], $mobile_styles = [] ) { |
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$this->class_styles[] = [ |
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'class_name' => $class_name, |
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'desktop_styles' => $desktop_styles, |
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'tablet_styles' => $tablet_styles, |
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'mobile_styles' => $mobile_styles |
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]; |
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} |
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|
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public function generate_css() { |
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$css_output = ''; |
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|
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foreach ( $this->class_styles as $class_style ) { |
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$desktop_styles = $this->remove_empty_css( $class_style['desktop_styles'] ); |
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$tablet_styles = $this->filter_responsive_styles( $desktop_styles, $class_style['tablet_styles'] ); |
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$mobile_styles = $this->filter_responsive_styles( array_merge( $desktop_styles, $tablet_styles ), $class_style['mobile_styles'] ); |
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|
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$desktop_raw = $this->generate_css_for_media_query( 'desktop', $desktop_styles ); |
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$tablet_raw = $this->generate_css_for_media_query( 'tablet', $tablet_styles ); |
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$mobile_raw = $this->generate_css_for_media_query( 'mobile', $mobile_styles ); |
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|
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$desktop_css = AssetsGenerator::minify_css( $desktop_raw ); |
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$tablet_css = AssetsGenerator::minify_css( $tablet_raw ); |
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$mobile_css = AssetsGenerator::minify_css( $mobile_raw ); |
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|
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$parent_selector = $this->get_parent_selector( $class_style['class_name'] ); |
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$css_blocks = []; |
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|
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$addToCssBlocks = function ( $mediaQuery, $max_width, $css ) use ( &$css_blocks, $parent_selector ) { |
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if ( ! empty( $css ) ) { |
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$css_blocks[] = ( '' !== $mediaQuery ) ? "@media screen and (max-width: $max_width) {\n$parent_selector {\n$css\n}\n}" : "$parent_selector {\n$css\n}"; |
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} |
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}; |
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|
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// Always add desktop CSS |
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$addToCssBlocks( '', '', $desktop_css ); |
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|
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// Only add tablet CSS if it differs from desktop |
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if ( $tablet_raw !== $desktop_raw ) { |
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$addToCssBlocks( 'tablet', $this->get_breakpoint( 'tablet' ), $tablet_css ); |
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} |
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|
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// Only add mobile CSS if it differs from desktop AND tablet |
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if ( $mobile_raw !== $tablet_raw ) { |
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$addToCssBlocks( 'mobile', $this->get_breakpoint( 'mobile' ), $mobile_css ); |
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} |
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|
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$css_output .= implode( "\n\n", $css_blocks ) . "\n\n"; |
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}//end foreach |
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|
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$css_output .= $this->get_custom_css(); |
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|
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return preg_replace( '/\s+/', ' ', $css_output ); |
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} |
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public function get_custom_css() { |
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return preg_replace( '/\bselector\b/', $this->parent_class, $this->custom_css ); |
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} |
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public function generate_css_for_media_query( $media_query, $styles ) { |
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if ( empty( $styles ) ) { |
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return ''; |
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} |
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$css_string = implode("\n", array_map( |
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function ( $property, $value ) { |
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return "$property: $value;"; |
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}, |
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array_keys( $styles ), |
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$styles |
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)); |
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|
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return $css_string . "\n"; |
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} |
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|
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public function get_breakpoint( $media_query ) { |
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switch ( $media_query ) { |
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case 'tablet': |
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return '800px'; |
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case 'mobile': |
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return '480px'; |
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default: |
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return '1200px'; |
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} |
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} |
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|
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public function get_parent_selector( $class_name ) { |
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return $this->parent_class ? str_replace( '{{WRAPPER}}', $this->parent_class, $class_name ) : $class_name; |
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} |
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|
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private function remove_empty_css( $base_styles ) { |
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if ( empty( $base_styles ) || ! is_array( $base_styles ) || ( is_array( $base_styles ) && ! count( $base_styles ) ) ) { |
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return []; |
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} |
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|
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$styles = []; |
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|
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foreach ( $base_styles as $prop => $value ) { |
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if ( 'font-family' === $prop && isset( $this->font_category[ $value ] ) ) { |
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$value = $this->get_font_family_css( $value, $this->font_category[ $value ] ); |
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} |
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// Trim value to avoid whitespace-only entries |
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$trimmed = trim( $value ); |
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// // Remove if empty, or if it matches only a unit (like 'px', '%', 'em') without any number |
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if ( $trimmed === '' || preg_match( '/^(px|em|rem|vh|vw|vmin|vmax|cm|mm|in|pt|pc|%)$/i', $trimmed ) ) { |
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continue; |
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} |
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|
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$styles[ $prop ] = $trimmed; |
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} |
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|
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return $styles; |
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} |
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|
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private function filter_responsive_styles( $base_styles, $responsive_styles ) { |
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if ( empty( $responsive_styles ) || ! is_array( $responsive_styles ) ) { |
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return []; |
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} |
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|
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$difference = []; |
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|
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foreach ( $responsive_styles as $prop => $value ) { |
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$trimmed = trim( $value ); |
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|
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// // Remove if empty, or if it matches only a unit (like 'px', '%', 'em') without any number |
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if ( $trimmed === '' || preg_match( '/^(px|em|rem|vh|vw|vmin|vmax|cm|mm|in|pt|pc|%)$/i', $trimmed ) ) { |
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continue; |
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} |
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|
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// Only include if the value is different from base styles |
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if ( ! isset( $base_styles[ $prop ] ) || $base_styles[ $prop ] !== $trimmed ) { |
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$difference[ $prop ] = $trimmed; |
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} |
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} |
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|
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return $difference; |
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} |
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|
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|
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public function get_font_family_css( string $font_name, string $category ): string { |
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// Quote font name if it contains spaces |
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if ( strpos( $font_name, ' ' ) !== false ) { |
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$font_name = '"' . $font_name . '"'; |
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} |
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|
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// Map category to fallback |
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switch ( $category ) { |
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case 'serif': |
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$fallback = 'serif'; |
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break; |
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case 'sans-serif': |
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$fallback = 'sans-serif'; |
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break; |
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case 'monospace': |
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$fallback = 'monospace'; |
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break; |
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case 'display': |
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$fallback = 'sans-serif'; |
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break; |
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case 'handwriting': |
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$fallback = 'cursive'; |
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break; |
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default: |
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$fallback = 'sans-serif'; |
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} |
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|
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return $font_name . ', ' . $fallback; |
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} |
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} |
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|
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|
