Initial commit

functions/kirki/modules/css/property/class-kirki-output-property-background-position.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * Handles CSS output for background-position.
+ *
+ * @package     Kirki
+ * @subpackage  Controls
+ * @copyright   Copyright (c) 2017, Aristeides Stathopoulos
+ * @license    https://opensource.org/licenses/MIT
+ * @since       2.2.0
+ */
+
+/**
+ * Output overrides.
+ */
+class Kirki_Output_Property_Background_Position extends Kirki_Output_Property {
+
+	/**
+	 * Modifies the value.
+	 *
+	 * @access protected
+	 */
+	protected function process_value() {
+		$this->value = trim( $this->value );
+
+		// If you use calc() there, I suppose you know what you're doing.
+		// No need to process this any further, just exit.
+		if ( false !== strpos( $this->value, 'calc' ) ) {
+			return;
+		}
+
+		// If the value is initial or inherit, we don't need to do anything.
+		// Just exit.
+		if ( 'initial' === $this->value || 'inherit' === $this->value ) {
+			return;
+		}
+
+		$x_dimensions = array( 'left', 'center', 'right' );
+		$y_dimensions = array( 'top', 'center', 'bottom' );
+
+		// If there's a space, we have an X and a Y value.
+		if ( false !== strpos( $this->value, ' ' ) ) {
+			$xy = explode( ' ', $this->value );
+
+			$x = trim( $xy[0] );
+			$y = trim( $xy[1] );
+
+			// If x is not left/center/right, we need to sanitize it.
+			if ( ! in_array( $x, $x_dimensions, true ) ) {
+				$x = sanitize_text_field( $x );
+			}
+			if ( ! in_array( $y, $y_dimensions, true ) ) {
+				$y = sanitize_text_field( $y );
+			}
+			$this->value = $x . ' ' . $y;
+			return;
+		}
+		$x = 'center';
+		foreach ( $x_dimensions as $x_dimension ) {
+			if ( false !== strpos( $this->value, $x_dimension ) ) {
+				$x = $x_dimension;
+			}
+		}
+		$y = 'center';
+		foreach ( $y_dimensions as $y_dimension ) {
+			if ( false !== strpos( $this->value, $y_dimension ) ) {
+				$y = $y_dimension;
+			}
+		}
+		$this->value = $x . ' ' . $y;
+	}
+}