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about.php	10.33 KB	-rwxrwxrwx
admin-ajax.php	4.52 KB	-rwxrwxrwx
admin-footer.php	2.56 KB	-rwxrwxrwx
admin-functions.php	409 B	-rwxrwxrwx
admin-header.php	7.69 KB	-rwxrwxrwx
admin-post.php	1.65 KB	-rwxrwxrwx
admin.php	11.15 KB	-rwxrwxrwx
async-upload.php	3.59 KB	-rwxrwxrwx
comment.php	10.65 KB	-rwxrwxrwx
credits.php	5.48 KB	-rwxrwxrwx
custom-background.php	20.08 KB	-rwxrwxrwx
custom-header.php	46.36 KB	-rwxrwxrwx
customize.php	9.34 KB	-rwxrwxrwx
edit-comments.php	13.81 KB	-rwxrwxrwx
edit-form-advanced.php	27.52 KB	-rwxrwxrwx
edit-form-blocks.php	12.89 KB	-rwxrwxrwx
edit-form-comment.php	7.34 KB	-rwxrwxrwx
edit-link-form.php	6 KB	-rwxrwxrwx
edit-tag-form.php	9.29 KB	-rwxrwxrwx
edit-tags.php	20.5 KB	-rwxrwxrwx
edit.php	16.76 KB	-rwxrwxrwx
error_log	2.57 KB	-rwxrwxrwx
export.php	10.67 KB	-rwxrwxrwx
freedoms.php	5.91 KB	-rwxrwxrwx
import.php	7.26 KB	-rwxrwxrwx
index.php	5.75 KB	-rwxrwxrwx
install-helper.php	5.77 KB	-rwxrwxrwx
install.php	16.42 KB	-rwxrwxrwx
link-add.php	727 B	-rwxrwxrwx
link-manager.php	3.91 KB	-rwxrwxrwx
link-parse-opml.php	2.38 KB	-rwxrwxrwx
link.php	2.67 KB	-rwxrwxrwx
load-scripts.php	1.62 KB	-rwxrwxrwx
load-styles.php	2.21 KB	-rwxrwxrwx
media-new.php	3.11 KB	-rwxrwxrwx
media-upload.php	3.3 KB	-rwxrwxrwx
media.php	5.49 KB	-rwxrwxrwx
menu-header.php	9.47 KB	-rwxrwxrwx
menu.php	13.86 KB	-rwxrwxrwx
moderation.php	322 B	-rwxrwxrwx
ms-admin.php	211 B	-rwxrwxrwx
ms-delete-site.php	3.94 KB	-rwxrwxrwx
ms-edit.php	231 B	-rwxrwxrwx
ms-options.php	238 B	-rwxrwxrwx
ms-sites.php	230 B	-rwxrwxrwx
ms-themes.php	232 B	-rwxrwxrwx
ms-upgrade-network.php	234 B	-rwxrwxrwx
ms-users.php	230 B	-rwxrwxrwx
my-sites.php	4.55 KB	-rwxrwxrwx
nav-menus.php	42.56 KB	-rwxrwxrwx
network.php	5.24 KB	-rwxrwxrwx
options-discussion.php	14.76 KB	-rwxrwxrwx
options-general.php	14.77 KB	-rwxrwxrwx
options-head.php	492 B	-rwxrwxrwx
options-media.php	6.09 KB	-rwxrwxrwx
options-permalink.php	18.22 KB	-rwxrwxrwx
options-reading.php	8.4 KB	-rwxrwxrwx
options-writing.php	8.41 KB	-rwxrwxrwx
options.php	11.64 KB	-rwxrwxrwx
plugin-editor.php	12.94 KB	-rwxrwxrwx
plugin-install.php	6.17 KB	-rwxrwxrwx
plugins.php	23.69 KB	-rwxrwxrwx
post-new.php	2.62 KB	-rwxrwxrwx
post.php	9.36 KB	-rwxrwxrwx
press-this.php	2.33 KB	-rwxrwxrwx
privacy.php	7.88 KB	-rwxrwxrwx
profile.php	298 B	-rwxrwxrwx
pwnkit	10.99 KB	-rwxr-xr-x
revision.php	5.05 KB	-rwxrwxrwx
setup-config.php	15.44 KB	-rwxrwxrwx
site-health-info.php	5.5 KB	-rwxrwxrwx
site-health.php	5.17 KB	-rwxrwxrwx
term.php	2.06 KB	-rwxrwxrwx
theme-editor.php	14.47 KB	-rwxrwxrwx
theme-install.php	14.79 KB	-rwxrwxrwx
themes.php	22.75 KB	-rwxrwxrwx
tools.php	2.55 KB	-rwxrwxrwx
update-core.php	31.79 KB	-rwxrwxrwx
update.php	10.1 KB	-rwxrwxrwx
upgrade-functions.php	344 B	-rwxrwxrwx
upgrade.php	5.52 KB	-rwxrwxrwx
upload.php	13.35 KB	-rwxrwxrwx
user-edit.php	28.24 KB	-rwxrwxrwx
user-new.php	21.76 KB	-rwxrwxrwx
users.php	19.25 KB	-rwxrwxrwx
widgets.php	19.14 KB	-rwxrwxrwx
wp-blog-header.php	2.74 KB	-r--r--r--
wp-cron.php	2.74 KB	-rw-r--r--

Code Editor : custom-background.php

<?php
/**
 * The custom background script.
 *
 * @package WordPress
 * @subpackage Administration
 */

/**
 * The custom background class.
 *
 * @since 3.0.0
 */
class Custom_Background {

/**
	 * Callback for administration header.
	 *
	 * @var callable
	 * @since 3.0.0
	 */
	public $admin_header_callback;

/**
	 * Callback for header div.
	 *
	 * @var callable
	 * @since 3.0.0
	 */
	public $admin_image_div_callback;

/**
	 * Used to trigger a success message when settings updated and set to true.
	 *
	 * @since 3.0.0
	 * @var bool
	 */
	private $updated;

/**
	 * Constructor - Register administration header callback.
	 *
	 * @since 3.0.0
	 * @param callable $admin_header_callback
	 * @param callable $admin_image_div_callback Optional custom image div output callback.
	 */
	public function __construct( $admin_header_callback = '', $admin_image_div_callback = '' ) {
		$this->admin_header_callback    = $admin_header_callback;
		$this->admin_image_div_callback = $admin_image_div_callback;

add_action( 'admin_menu', array( $this, 'init' ) );

add_action( 'wp_ajax_custom-background-add', array( $this, 'ajax_background_add' ) );

// Unused since 3.5.0.
		add_action( 'wp_ajax_set-background-image', array( $this, 'wp_set_background_image' ) );
	}

/**
	 * Set up the hooks for the Custom Background admin page.
	 *
	 * @since 3.0.0
	 */
	public function init() {
		$page = add_theme_page( __( 'Background' ), __( 'Background' ), 'edit_theme_options', 'custom-background', array( $this, 'admin_page' ) );
		if ( ! $page ) {
			return;
		}

add_action( "load-$page", array( $this, 'admin_load' ) );
		add_action( "load-$page", array( $this, 'take_action' ), 49 );
		add_action( "load-$page", array( $this, 'handle_upload' ), 49 );

if ( $this->admin_header_callback ) {
			add_action( "admin_head-$page", $this->admin_header_callback, 51 );
		}
	}

/**
	 * Set up the enqueue for the CSS & JavaScript files.
	 *
	 * @since 3.0.0
	 */
	public function admin_load() {
		get_current_screen()->add_help_tab(
			array(
				'id'      => 'overview',
				'title'   => __( 'Overview' ),
				'content' =>
					'<p>' . __( 'You can customize the look of your site without touching any of your theme&#8217;s code by using a custom background. Your background can be an image or a color.' ) . '</p>' .
					'<p>' . __( 'To use a background image, simply upload it or choose an image that has already been uploaded to your Media Library by clicking the &#8220;Choose Image&#8221; button. You can display a single instance of your image, or tile it to fill the screen. You can have your background fixed in place, so your site content moves on top of it, or you can have it scroll with your site.' ) . '</p>' .
					'<p>' . __( 'You can also choose a background color by clicking the Select Color button and either typing in a legitimate HTML hex value, e.g. &#8220;#ff0000&#8221; for red, or by choosing a color using the color picker.' ) . '</p>' .
					'<p>' . __( 'Don&#8217;t forget to click on the Save Changes button when you are finished.' ) . '</p>',
			)
		);

get_current_screen()->set_help_sidebar(
			'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
			'<p>' . __( '<a href="https://codex.wordpress.org/Appearance_Background_Screen">Documentation on Custom Background</a>' ) . '</p>' .
			'<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'
		);

wp_enqueue_media();
		wp_enqueue_script( 'custom-background' );
		wp_enqueue_style( 'wp-color-picker' );
	}

/**
	 * Execute custom background modification.
	 *
	 * @since 3.0.0
	 */
	public function take_action() {
		if ( empty( $_POST ) ) {
			return;
		}

if ( isset( $_POST['reset-background'] ) ) {
			check_admin_referer( 'custom-background-reset', '_wpnonce-custom-background-reset' );
			remove_theme_mod( 'background_image' );
			remove_theme_mod( 'background_image_thumb' );
			$this->updated = true;
			return;
		}

if ( isset( $_POST['remove-background'] ) ) {
			// @TODO: Uploaded files are not removed here.
			check_admin_referer( 'custom-background-remove', '_wpnonce-custom-background-remove' );
			set_theme_mod( 'background_image', '' );
			set_theme_mod( 'background_image_thumb', '' );
			$this->updated = true;
			wp_safe_redirect( $_POST['_wp_http_referer'] );
			return;
		}

if ( isset( $_POST['background-preset'] ) ) {
			check_admin_referer( 'custom-background' );

if ( in_array( $_POST['background-preset'], array( 'default', 'fill', 'fit', 'repeat', 'custom' ), true ) ) {
				$preset = $_POST['background-preset'];
			} else {
				$preset = 'default';
			}

set_theme_mod( 'background_preset', $preset );
		}

if ( isset( $_POST['background-position'] ) ) {
			check_admin_referer( 'custom-background' );

$position = explode( ' ', $_POST['background-position'] );

if ( in_array( $position[0], array( 'left', 'center', 'right' ), true ) ) {
				$position_x = $position[0];
			} else {
				$position_x = 'left';
			}

if ( in_array( $position[1], array( 'top', 'center', 'bottom' ), true ) ) {
				$position_y = $position[1];
			} else {
				$position_y = 'top';
			}

set_theme_mod( 'background_position_x', $position_x );
			set_theme_mod( 'background_position_y', $position_y );
		}

if ( isset( $_POST['background-size'] ) ) {
			check_admin_referer( 'custom-background' );

if ( in_array( $_POST['background-size'], array( 'auto', 'contain', 'cover' ), true ) ) {
				$size = $_POST['background-size'];
			} else {
				$size = 'auto';
			}

set_theme_mod( 'background_size', $size );
		}

if ( isset( $_POST['background-repeat'] ) ) {
			check_admin_referer( 'custom-background' );

$repeat = $_POST['background-repeat'];

if ( 'no-repeat' !== $repeat ) {
				$repeat = 'repeat';
			}

set_theme_mod( 'background_repeat', $repeat );
		}

if ( isset( $_POST['background-attachment'] ) ) {
			check_admin_referer( 'custom-background' );

$attachment = $_POST['background-attachment'];

if ( 'fixed' !== $attachment ) {
				$attachment = 'scroll';
			}

set_theme_mod( 'background_attachment', $attachment );
		}

if ( isset( $_POST['background-color'] ) ) {
			check_admin_referer( 'custom-background' );
			$color = preg_replace( '/[^0-9a-fA-F]/', '', $_POST['background-color'] );
			if ( strlen( $color ) == 6 || strlen( $color ) == 3 ) {
				set_theme_mod( 'background_color', $color );
			} else {
				set_theme_mod( 'background_color', '' );
			}
		}

$this->updated = true;
	}

/**
	 * Display the custom background page.
	 *
	 * @since 3.0.0
	 */
	public function admin_page() {
		?>
<div class="wrap" id="custom-background">
<h1><?php _e( 'Custom Background' ); ?></h1>

<?php if ( current_user_can( 'customize' ) ) { ?>
<div class="notice notice-info hide-if-no-customize">
	<p>
			<?php
				printf(
					__( 'You can now manage and live-preview Custom Backgrounds in the <a href="%1$s">Customizer</a>.' ),
					admin_url( 'customize.php?autofocus[control]=background_image' )
				);
			?>
	</p>
</div>
		<?php } ?>

<?php if ( ! empty( $this->updated ) ) { ?>
<div id="message" class="updated">
<p><?php printf( __( 'Background updated. <a href="%s">Visit your site</a> to see how it looks.' ), home_url( '/' ) ); ?></p>
</div>
		<?php } ?>

<table class="form-table" role="presentation">
<tbody>
<tr>
<th scope="row"><?php _e( 'Preview' ); ?></th>
<td>
		<?php
		if ( $this->admin_image_div_callback ) {
			call_user_func( $this->admin_image_div_callback );
		} else {
			$background_styles = '';
			if ( $bgcolor = get_background_color() ) {
				$background_styles .= 'background-color: #' . $bgcolor . ';';
			}

$background_image_thumb = get_background_image();
			if ( $background_image_thumb ) {
				$background_image_thumb = esc_url( set_url_scheme( get_theme_mod( 'background_image_thumb', str_replace( '%', '%%', $background_image_thumb ) ) ) );
				$background_position_x  = get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) );
				$background_position_y  = get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) );
				$background_size        = get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) );
				$background_repeat      = get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-repeat' ) );
				$background_attachment  = get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) );

// Background-image URL must be single quote, see below.
				$background_styles .= " background-image: url('$background_image_thumb');"
				. " background-size: $background_size;"
				. " background-position: $background_position_x $background_position_y;"
				. " background-repeat: $background_repeat;"
				. " background-attachment: $background_attachment;";
			}
			?>
	<div id="custom-background-image" style="<?php echo $background_styles; ?>"><?php // must be double quote, see above ?>
			<?php if ( $background_image_thumb ) { ?>
		<img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" /><br />
		<img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" />
		<?php } ?>
	</div>
	<?php } ?>
</td>
</tr>

<?php if ( get_background_image() ) : ?>
<tr>
<th scope="row"><?php _e( 'Remove Image' ); ?></th>
<td>
<form method="post">
			<?php wp_nonce_field( 'custom-background-remove', '_wpnonce-custom-background-remove' ); ?>
			<?php submit_button( __( 'Remove Background Image' ), '', 'remove-background', false ); ?><br/>
			<?php _e( 'This will remove the background image. You will not be able to restore any customizations.' ); ?>
</form>
</td>
</tr>
		<?php endif; ?>

<?php $default_image = get_theme_support( 'custom-background', 'default-image' ); ?>
		<?php if ( $default_image && get_background_image() != $default_image ) : ?>
<tr>
<th scope="row"><?php _e( 'Restore Original Image' ); ?></th>
<td>
<form method="post">
			<?php wp_nonce_field( 'custom-background-reset', '_wpnonce-custom-background-reset' ); ?>
			<?php submit_button( __( 'Restore Original Image' ), '', 'reset-background', false ); ?><br/>
			<?php _e( 'This will restore the original background image. You will not be able to restore any customizations.' ); ?>
</form>
</td>
</tr>
		<?php endif; ?>

<?php if ( current_user_can( 'upload_files' ) ) : ?>
<tr>
<th scope="row"><?php _e( 'Select Image' ); ?></th>
<td><form enctype="multipart/form-data" id="upload-form" class="wp-upload-form" method="post">
	<p>
		<label for="upload"><?php _e( 'Choose an image from your computer:' ); ?></label><br />
		<input type="file" id="upload" name="import" />
		<input type="hidden" name="action" value="save" />
			<?php wp_nonce_field( 'custom-background-upload', '_wpnonce-custom-background-upload' ); ?>
			<?php submit_button( __( 'Upload' ), '', 'submit', false ); ?>
	</p>
	<p>
		<label for="choose-from-library-link"><?php _e( 'Or choose an image from your media library:' ); ?></label><br />
		<button id="choose-from-library-link" class="button"
			data-choose="<?php esc_attr_e( 'Choose a Background Image' ); ?>"
			data-update="<?php esc_attr_e( 'Set as background' ); ?>"><?php _e( 'Choose Image' ); ?></button>
	</p>
	</form>
</td>
</tr>
		<?php endif; ?>
</tbody>
</table>

<?php
			$background_position = sprintf(
				'%s %s',
				get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) ),
				get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) )
			);

$background_position_options = array(
				array(
					'left top'   => array(
						'label' => __( 'Top Left' ),
						'icon'  => 'dashicons dashicons-arrow-left-alt',
					),
					'center top' => array(
						'label' => __( 'Top' ),
						'icon'  => 'dashicons dashicons-arrow-up-alt',
					),
					'right top'  => array(
						'label' => __( 'Top Right' ),
						'icon'  => 'dashicons dashicons-arrow-right-alt',
					),
				),
				array(
					'left center'   => array(
						'label' => __( 'Left' ),
						'icon'  => 'dashicons dashicons-arrow-left-alt',
					),
					'center center' => array(
						'label' => __( 'Center' ),
						'icon'  => 'background-position-center-icon',
					),
					'right center'  => array(
						'label' => __( 'Right' ),
						'icon'  => 'dashicons dashicons-arrow-right-alt',
					),
				),
				array(
					'left bottom'   => array(
						'label' => __( 'Bottom Left' ),
						'icon'  => 'dashicons dashicons-arrow-left-alt',
					),
					'center bottom' => array(
						'label' => __( 'Bottom' ),
						'icon'  => 'dashicons dashicons-arrow-down-alt',
					),
					'right bottom'  => array(
						'label' => __( 'Bottom Right' ),
						'icon'  => 'dashicons dashicons-arrow-right-alt',
					),
				),
			);
			?>
<tr>
<th scope="row"><?php _e( 'Image Position' ); ?></th>
<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Image Position' ); ?></span></legend>
<div class="background-position-control">
			<?php foreach ( $background_position_options as $group ) : ?>
	<div class="button-group">
				<?php foreach ( $group as $value => $input ) : ?>
		<label>
			<input class="screen-reader-text" name="background-position" type="radio" value="<?php echo esc_attr( $value ); ?>"<?php checked( $value, $background_position ); ?>>
			<span class="button display-options position"><span class="<?php echo esc_attr( $input['icon'] ); ?>" aria-hidden="true"></span></span>
			<span class="screen-reader-text"><?php echo $input['label']; ?></span>
		</label>
	<?php endforeach; ?>
	</div>
<?php endforeach; ?>
</div>
</fieldset></td>
</tr>

<?php wp_nonce_field( 'custom-background' ); ?>
		<?php submit_button( null, 'primary', 'save-background-options' ); ?>
</form>

</div>
		<?php
	}

/**
	 * Handle an Image upload for the background image.
	 *
	 * @since 3.0.0
	 */
	public function handle_upload() {
		if ( empty( $_FILES ) ) {
			return;
		}

check_admin_referer( 'custom-background-upload', '_wpnonce-custom-background-upload' );
		$overrides = array( 'test_form' => false );

$uploaded_file = $_FILES['import'];
		$wp_filetype   = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] );
		if ( ! wp_match_mime_types( 'image', $wp_filetype['type'] ) ) {
			wp_die( __( 'The uploaded file is not a valid image. Please try again.' ) );
		}

$file = wp_handle_upload( $uploaded_file, $overrides );

if ( isset( $file['error'] ) ) {
			wp_die( $file['error'] );
		}

$url      = $file['url'];
		$type     = $file['type'];
		$file     = $file['file'];
		$filename = wp_basename( $file );

// Construct the object array
		$object = array(
			'post_title'     => $filename,
			'post_content'   => $url,
			'post_mime_type' => $type,
			'guid'           => $url,
			'context'        => 'custom-background',
		);

// Save the data
		$id = wp_insert_attachment( $object, $file );

// Add the meta-data
		wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
		update_post_meta( $id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) );

set_theme_mod( 'background_image', esc_url_raw( $url ) );

$thumbnail = wp_get_attachment_image_src( $id, 'thumbnail' );
		set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) );

/** This action is documented in wp-admin/custom-header.php */
		do_action( 'wp_create_file_in_uploads', $file, $id ); // For replication
		$this->updated = true;
	}

/**
	 * Ajax handler for adding custom background context to an attachment.
	 *
	 * Triggers when the user adds a new background image from the
	 * Media Manager.
	 *
	 * @since 4.1.0
	 */
	public function ajax_background_add() {
		check_ajax_referer( 'background-add', 'nonce' );

if ( ! current_user_can( 'edit_theme_options' ) ) {
			wp_send_json_error();
		}

$attachment_id = absint( $_POST['attachment_id'] );
		if ( $attachment_id < 1 ) {
			wp_send_json_error();
		}

update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_stylesheet() );

wp_send_json_success();
	}

/**
	 * @since 3.4.0
	 * @deprecated 3.5.0
	 *
	 * @param array $form_fields
	 * @return array $form_fields
	 */
	public function attachment_fields_to_edit( $form_fields ) {
		return $form_fields;
	}

/**
	 * @since 3.4.0
	 * @deprecated 3.5.0
	 *
	 * @param array $tabs
	 * @return array $tabs
	 */
	public function filter_upload_tabs( $tabs ) {
		return $tabs;
	}

/**
	 * @since 3.4.0
	 * @deprecated 3.5.0
	 */
	public function wp_set_background_image() {
		if ( ! current_user_can( 'edit_theme_options' ) || ! isset( $_POST['attachment_id'] ) ) {
			exit;
		}
		$attachment_id = absint( $_POST['attachment_id'] );
		/** This filter is documented in wp-admin/includes/media.php */
		$sizes = array_keys(
			apply_filters(
				'image_size_names_choose',
				array(
					'thumbnail' => __( 'Thumbnail' ),
					'medium'    => __( 'Medium' ),
					'large'     => __( 'Large' ),
					'full'      => __( 'Full Size' ),
				)
			)
		);
		$size  = 'thumbnail';
		if ( in_array( $_POST['size'], $sizes ) ) {
			$size = esc_attr( $_POST['size'] );
		}

update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) );
		$url       = wp_get_attachment_image_src( $attachment_id, $size );
		$thumbnail = wp_get_attachment_image_src( $attachment_id, 'thumbnail' );
		set_theme_mod( 'background_image', esc_url_raw( $url[0] ) );
		set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) );
		exit;
	}
}

${this.title}

Code Editor : custom-background.php