plugin install

wp/wp-content/plugins/gravityforms/includes/theme-layers/api/json/functions.php

@@ -0,0 +1,17 @@
+<?php
+
+use Gravity_Forms\Gravity_Forms\Theme_Layers\API\JSON\Layers\Json_Theme_Layer;
+use Gravity_Forms\Gravity_Forms\Theme_Layers\GF_Theme_Layers_Provider;
+
+function gforms_register_theme_json( $path ) {
+	$container = GFForms::get_service_container();
+	$layer     = new Json_Theme_Layer( $container->get( GF_Theme_Layers_Provider::DEFINITION_ENGINE_FACTORY ), $container->get( GF_Theme_Layers_Provider::OUTPUT_ENGINE_FACTORY ) );
+	$layer->set_json( $path );
+	$layer->init_engines();
+
+	add_filter( 'gform_registered_theme_layers', function ( $layers ) use ( $layer ) {
+		$layers[] = $layer;
+
+		return $layers;
+	} );
+}

wp/wp-content/plugins/gravityforms/includes/theme-layers/api/json/layers/class-json-theme-layer.php

@@ -0,0 +1,177 @@
+<?php
+
+namespace Gravity_Forms\Gravity_Forms\Theme_Layers\API\JSON\Layers;
+
+use Gravity_Forms\Gravity_Forms\Theme_Layers\API\GF_All_Access_Theme_Layer;
+use Gravity_Forms\Gravity_Forms\Theme_Layers\API\JSON\Rules\GF_Theme_Layer_Rule;
+
+class Json_Theme_Layer extends GF_All_Access_Theme_Layer {
+
+	protected $_file;
+	protected $_json_data;
+	protected $_rules;
+
+	private function process_json() {
+		$contents = file_get_contents( $this->_file );
+		$data     = json_decode( $contents, true );
+
+		if ( empty( $data['gravityforms'] ) ) {
+			throw new \InvalidArgumentException( 'Invalid theme.json file provided.' );
+		}
+
+		$this->_json_data = $data['gravityforms'];
+
+		if ( empty( $this->_json_data['name'] ) || empty( $this->_json_data['short_title'] ) ) {
+			throw new \InvalidArgumentException( 'theme.json file must have a name and short_title value.' );
+		}
+
+		$this->set_name( $this->_json_data['name'] );
+		$this->set_short_title( $this->_json_data['short_title'] );
+
+		if ( isset( $this->_json_data['settings']['fields']['form'] ) ) {
+			$this->set_settings_fields( $this->_json_data['settings']['fields']['form'] );
+		}
+
+		if ( isset( $this->_json_data['settings']['fields']['blocks'] ) ) {
+			$this->set_block_settings( $this->_json_data['settings']['fields']['blocks'] );
+		}
+
+		if ( isset( $this->_json_data['settings']['cssProperties'] ) ) {
+			$this->set_form_css_properties( $this->_json_data['settings']['cssProperties'] );
+		}
+
+		if ( isset( $this->_json_data['settings']['templateParts'] ) ) {
+			$this->set_overidden_fields( $this->_json_data['settings']['templateParts'] );
+		}
+
+		if ( isset( $this->_json_data['settings']['assets']['scripts'] ) ) {
+			$this->set_scripts( $this->_json_data['settings']['assets']['scripts'] );
+		}
+
+		if ( isset( $this->_json_data['settings']['assets']['styles'] ) ) {
+			$this->set_styles( $this->_json_data['settings']['assets']['styles'] );
+		}
+
+		if ( isset( $this->_json_data['settings']['rules'] ) ) {
+			$this->set_rules( $this->_json_data['settings']['rules'] );
+		}
+	}
+
+	private function evaluate_rule( $rule, $settings, $block_settings ) {
+		if ( is_string( $rule ) && ! isset( $this->_rules[ $rule ] ) ) {
+			return false;
+		}
+
+		if ( is_string( $rule ) ) {
+			$rule = $this->_rules[ $rule ];
+		}
+
+		$rule_object = new GF_Theme_Layer_Rule( $rule );
+
+		return $rule_object->validate( array( 'form' => $settings, 'blocks' => $block_settings ) );
+	}
+
+	private function filter_values_by_rule( $values, $settings, $block_settings ) {
+		$self = $this;
+
+		return array_filter( $values, function ( $item ) use ( $self, $settings, $block_settings ) {
+			if ( ! isset( $item['rules'] ) ) {
+				return true;
+			}
+
+			$rule = $item['rules'];
+
+			return $self->evaluate_rule( $rule, $settings, $block_settings );
+		} );
+	}
+
+	////////////////////////////////////////////////
+	/// Setters ////////////////////////////////////
+	////////////////////////////////////////////////
+
+	public function set_json( $file ) {
+		$this->_file = $file;
+		$this->process_json();
+	}
+
+	public function set_rules( $rules ) {
+		$this->_rules = $rules;
+	}
+
+	public function set_settings_fields( $fields ) {
+		$this->_settings_fields = $fields;
+	}
+
+	public function set_block_settings( $settings ) {
+		$this->_block_settings = $settings;
+	}
+
+	public function set_overidden_fields( $fields ) {
+		$this->_overidden_fields = $fields;
+	}
+
+	public function set_form_css_properties( $properties ) {
+		$this->_form_css_properties = $properties;
+	}
+
+	public function set_scripts( $scripts ) {
+		$this->_scripts = $scripts;
+	}
+
+	public function set_styles( $styles ) {
+		foreach( $styles as &$style ) {
+			$parsed = str_replace( '%gforms_plugin_url%', \GFCommon::get_base_url(), $style['path'] );
+			$style['path'] = $parsed;
+		}
+
+		$this->_styles = $styles;
+	}
+
+	public function set_name( $name ) {
+		$this->name = $name;
+	}
+
+	public function set_priority( $priority ) {
+		$this->priority = $priority;
+	}
+
+	public function set_short_title( $title ) {
+		$this->short_title = $title;
+	}
+
+	////////////////////////////////////////////////
+	/// Getters ////////////////////////////////////
+	////////////////////////////////////////////////
+
+	public function settings_fields() {
+		return array(
+			array(
+				'description' => $this->short_title(),
+				'fields'      => $this->_settings_fields,
+			),
+		);
+	}
+
+	public function block_settings() {
+		return $this->_block_settings;
+	}
+
+	public function overriden_fields() {
+		return $this->_overidden_fields;
+	}
+
+	public function form_css_properties( $form_id = 0, $settings = array(), $block_settings = array() ) {
+		return array();
+
+		return $this->filter_values_by_rule( $this->_form_css_properties, $settings, $block_settings );
+	}
+
+	public function scripts( $form, $ajax, $settings, $block_settings = array() ) {
+		return $this->filter_values_by_rule( $this->_scripts, $settings, $block_settings );
+	}
+
+	public function styles( $form, $ajax, $settings, $block_settings = array() ) {
+		return $this->filter_values_by_rule( $this->_styles, $settings, $block_settings );
+	}
+
+}

wp/wp-content/plugins/gravityforms/includes/theme-layers/api/json/rules/class-gf-theme-layer-rule.php

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+<?php
+
+namespace Gravity_Forms\Gravity_Forms\Theme_Layers\API\JSON\Rules;
+
+class GF_Theme_Layer_Rule {
+
+	private $setting;
+	private $operator;
+	private $value;
+
+	public function __construct( $args ) {
+		if ( ! isset( $args['setting'] ) || ! isset( $args['operator'] ) || ! isset( $args['value'] ) ) {
+			throw new \InvalidArgumentException( 'Rules must have settings, operators, and values.' );
+		}
+
+		$setting_parts  = explode( '.', $args['setting'] );
+		$this->setting  = array( 'type' => $setting_parts[0], 'name' => $setting_parts[1] );
+		$this->operator = $args['operator'];
+		$this->value    = $args['value'];
+	}
+
+	public function validate( $settings ) {
+		$type = $this->setting['type'];
+		$name = $this->setting['name'];
+
+		if ( ! isset( $settings[ $type ][ $name ] ) ) {
+			return false;
+		}
+
+		$value = $settings[ $type ][ $name ];
+
+		switch ( $this->operator ) {
+			case '=':
+				return $value == $this->value;
+			case '>':
+				return $value > $this->value;
+			case '>=':
+				return $value >= $this->value;
+			case '<':
+				return $value < $this->value;
+			case '<=':
+				return $value <= $this->value;
+			case '!=':
+				return $value != $this->value;
+			default:
+				return false;
+		}
+	}
+
+}