gpaa-autocomplete-by-city.php: Created a new snippet for autocompleting by city instead of an address.

Author: spivurno

gp-address-autocomplete/gpaa-autocomplete-by-city.php

@@ -0,0 +1,135 @@
+<?php
+/**
+ * Gravity Perks // Address Autocomplete // Autocomplete By City
+ * https://gravitywiz.com/documentation/gravity-forms-address-autocomplete/
+ *
+ * Autocomplete cities (including state and country) instead of full addresses.
+ */
+class GPAA_Autocomplete_By_City {
+
+	public function __construct( $args = array() ) {
+
+		// set our default arguments, parse against the provided arguments, and store for use throughout the class
+		$this->_args = wp_parse_args( $args, array(
+			'form_id'  => false,
+			'field_id' => false,
+		) );
+
+		// do version check in the init to make sure if GF is going to be loaded, it is already loaded
+		add_action( 'init', array( $this, 'init' ) );
+
+	}
+
+	public function init() {
+
+		add_filter( 'gform_pre_render', array( $this, 'load_form_script' ), 10, 2 );
+		add_filter( 'gform_register_init_scripts', array( $this, 'add_init_script' ), 10, 2 );
+
+		add_filter( 'gpaa_init_args', array( $this, 'set_city_input_as_autocomplete_input' ) );
+		add_filter( 'gform_form_post_get_meta', array( $this, 'disable_unused_inputs' ) );
+
+	}
+
+	public function load_form_script( $form, $is_ajax_enabled ) {
+
+		if ( $this->is_applicable_form( $form ) && ! has_action( 'wp_footer', array( $this, 'output_script' ) ) ) {
+			add_action( 'wp_footer', array( $this, 'output_script' ) );
+			add_action( 'gform_preview_footer', array( $this, 'output_script' ) );
+		}
+
+		return $form;
+	}
+
+	public function output_script() {
+		?>
+
+		<script type="text/javascript">
+
+			( function( $ ) {
+
+				window.GPPAAutocompleteByCity = function( args ) {
+
+					var self = this;
+
+					self.init = function() {
+
+						window.gform.addFilter( 'gpaa_autocomplete_options', function( options, gpaa, formId, fieldId ) {
+							if ( formId == args.formId && fieldId == args.fieldId ) {
+								options.types = [ '(cities)' ];
+							}
+							return options;
+						} );
+
+					};
+
+					self.init();
+
+				}
+
+			} )( jQuery );
+
+		</script>
+
+		<?php
+	}
+
+	public function add_init_script( $form ) {
+
+		if ( ! $this->is_applicable_form( $form ) ) {
+			return;
+		}
+
+		$args = array(
+			'formId'  => $this->_args['form_id'],
+			'fieldId' => $this->_args['field_id'],
+		);
+
+		$script = 'new GPPAAutocompleteByCity( ' . json_encode( $args ) . ' );';
+		$slug   = implode( '_', array( 'gw_js_snippet_template', $this->_args['form_id'], $this->_args['field_id'] ) );
+
+		GFFormDisplay::add_init_script( $this->_args['form_id'], $slug, GFFormDisplay::ON_PAGE_RENDER, $script );
+
+	}
+
+	public function set_city_input_as_autocomplete_input( $args ) {
+		if ( ! $this->is_applicable_form( $args['formId'] ) || ! $this->is_applicable_field( $args['fieldId'] ) ) {
+			return $args;
+		}
+		$args['inputSelectors']['autocomplete'] = "#input_{$args['formId']}_{$args['fieldId']}_3";
+		return $args;
+	}
+
+	public function disable_unused_inputs( $form ) {
+		if ( ! $this->is_applicable_form( $form ) ) {
+			return $form;
+		}
+		foreach( $form['fields'] as &$field ) {
+			if ( ! $this->is_applicable_field( $field->id ) ) {
+				continue;
+			}
+			$field->inputs[0]['isHidden'] = true;
+			$field->inputs[1]['isHidden'] = true;
+			$field->inputs[4]['isHidden'] = true;
+		}
+		return $form;
+	}
+
+	public function is_applicable_form( $form ) {
+
+		$form_id = isset( $form['id'] ) ? $form['id'] : $form;
+
+		return empty( $this->_args['form_id'] ) || (int) $form_id == (int) $this->_args['form_id'];
+	}
+
+	public function is_applicable_field( $field_id ) {
+		return $this->_args['field_id'] == $field_id;
+	}
+
+}
+
+# Configuration
+
+new GPAA_Autocomplete_By_City( array(
+	'form_id'  => 123, // Update "123" to your form ID.
+	'field_id' => 4,   // Update "4" to your Address field ID.
+) );