348 lines
11 KiB
PHP
348 lines
11 KiB
PHP
<?php
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/**
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* The custom background script.
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* The custom background class.
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*
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* @since 3.0.0
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* @package WordPress
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* @subpackage Administration
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*/
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class Custom_Background {
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/**
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* Callback for administration header.
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*
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* @var callback
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* @since unknown
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* @access private
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*/
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var $admin_header_callback;
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/**
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* Callback for header div.
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*
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* @var callback
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* @since 3.0.0
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* @access private
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*/
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var $admin_image_div_callback;
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/**
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* PHP4 Constructor - Register administration header callback.
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*
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* @since 3.0.0
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* @param callback $admin_header_callback
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* @param callback $admin_image_div_callback Optional custom image div output callback.
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* @return Custom_Background
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*/
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function Custom_Background($admin_header_callback = '', $admin_image_div_callback = '') {
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$this->admin_header_callback = $admin_header_callback;
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$this->admin_image_div_callback = $admin_image_div_callback;
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}
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/**
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* Set up the hooks for the Custom Background admin page.
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*
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* @since 3.0.0
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*/
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function init() {
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if ( ! current_user_can('edit_theme_options') )
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return;
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$page = add_theme_page(__('Background'), __('Background'), 'edit_theme_options', 'custom-background', array(&$this, 'admin_page'));
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add_action("load-$page", array(&$this, 'admin_load'));
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add_action("load-$page", array(&$this, 'take_action'), 49);
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add_action("load-$page", array(&$this, 'handle_upload'), 49);
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if ( $this->admin_header_callback )
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add_action("admin_head-$page", $this->admin_header_callback, 51);
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}
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/**
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* Set up the enqueue for the CSS & JavaScript files.
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*
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* @since 3.0.0
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*/
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function admin_load() {
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wp_enqueue_script('custom-background');
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wp_enqueue_style('farbtastic');
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}
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/**
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* Execute custom background modification.
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*
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* @since 3.0.0
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*/
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function take_action() {
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if ( empty($_POST) )
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return;
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if ( isset($_POST['reset-background']) ) {
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check_admin_referer('custom-background-reset', '_wpnonce-custom-background-reset');
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remove_theme_mod('background_image');
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remove_theme_mod('background_image_thumb');
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$this->updated = true;
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return;
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}
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if ( isset($_POST['remove-background']) ) {
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// @TODO: Uploaded files are not removed here.
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check_admin_referer('custom-background-remove', '_wpnonce-custom-background-remove');
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set_theme_mod('background_image', '');
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set_theme_mod('background_image_thumb', '');
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$this->updated = true;
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return;
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}
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if ( isset($_POST['background-repeat']) ) {
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check_admin_referer('custom-background');
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if ( in_array($_POST['background-repeat'], array('repeat', 'no-repeat', 'repeat-x', 'repeat-y')) )
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$repeat = $_POST['background-repeat'];
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else
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$repeat = 'repeat';
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set_theme_mod('background_repeat', $repeat);
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}
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if ( isset($_POST['background-position-x']) ) {
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check_admin_referer('custom-background');
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if ( in_array($_POST['background-position-x'], array('center', 'right', 'left')) )
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$position = $_POST['background-position-x'];
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else
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$position = 'left';
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set_theme_mod('background_position_x', $position);
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}
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if ( isset($_POST['background-attachment']) ) {
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check_admin_referer('custom-background');
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if ( in_array($_POST['background-attachment'], array('fixed', 'scroll')) )
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$attachment = $_POST['background-attachment'];
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else
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$attachment = 'fixed';
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set_theme_mod('background_attachment', $attachment);
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}
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if ( isset($_POST['background-color']) ) {
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check_admin_referer('custom-background');
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$color = preg_replace('/[^0-9a-fA-F]/', '', $_POST['background-color']);
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if ( strlen($color) == 6 || strlen($color) == 3 )
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set_theme_mod('background_color', $color);
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else
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set_theme_mod('background_color', '');
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}
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$this->updated = true;
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}
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/**
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* Display the custom background page.
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*
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* @since 3.0.0
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*/
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function admin_page() {
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?>
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<div class="wrap" id="custom-background">
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<?php screen_icon(); ?>
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<h2><?php _e('Custom Background'); ?></h2>
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<?php if ( !empty($this->updated) ) { ?>
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<div id="message" class="updated">
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<p><?php printf( __( 'Background updated. <a href="%s">Visit your site</a> to see how it looks.' ), home_url( '/' ) ); ?></p>
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</div>
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<?php }
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if ( $this->admin_image_div_callback ) {
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call_user_func($this->admin_image_div_callback);
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} else {
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?>
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<h3><?php _e('Background Image'); ?></h3>
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<table class="form-table">
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<tbody>
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<tr valign="top">
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<th scope="row"><?php _e('Preview'); ?></th>
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<td>
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<?php
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$background_styles = '';
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if ( $bgcolor = get_background_color() )
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$background_styles .= 'background-color: #' . $bgcolor . ';';
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if ( get_background_image() ) {
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// background-image URL must be single quote, see below
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$background_styles .= ' background-image: url(\'' . get_theme_mod('background_image_thumb', '') . '\');'
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. ' background-repeat: ' . get_theme_mod('background_repeat', 'repeat') . ';'
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. ' background-position: top ' . get_theme_mod('background_position_x', 'left');
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}
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?>
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<div id="custom-background-image" style="<?php echo $background_styles; ?>"><?php // must be double quote, see above ?>
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<?php if ( get_background_image() ) { ?>
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<img class="custom-background-image" src="<?php echo get_theme_mod('background_image_thumb', ''); ?>" style="visibility:hidden;" alt="" /><br />
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<img class="custom-background-image" src="<?php echo get_theme_mod('background_image_thumb', ''); ?>" style="visibility:hidden;" alt="" />
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<?php } ?>
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</div>
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<?php } ?>
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</td>
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</tr>
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<?php if ( get_background_image() ) : ?>
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<tr valign="top">
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<th scope="row"><?php _e('Remove Image'); ?></th>
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<td>
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<form method="post" action="">
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<?php wp_nonce_field('custom-background-remove', '_wpnonce-custom-background-remove'); ?>
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<input type="submit" class="button" name="remove-background" value="<?php esc_attr_e('Remove Background Image'); ?>" /><br/>
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<?php _e('This will remove the background image. You will not be able to restore any customizations.') ?>
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</form>
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</td>
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</tr>
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<?php endif; ?>
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<?php if ( defined( 'BACKGROUND_IMAGE' ) ) : // Show only if a default background image exists ?>
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<tr valign="top">
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<th scope="row"><?php _e('Restore Original Image'); ?></th>
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<td>
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<form method="post" action="">
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<?php wp_nonce_field('custom-background-reset', '_wpnonce-custom-background-reset'); ?>
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<input type="submit" class="button" name="reset-background" value="<?php esc_attr_e('Restore Original Image'); ?>" /><br/>
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<?php _e('This will restore the original background image. You will not be able to restore any customizations.') ?>
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</form>
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</td>
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</tr>
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<?php endif; ?>
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<tr valign="top">
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<th scope="row"><?php _e('Upload Image'); ?></th>
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<td><form enctype="multipart/form-data" id="upload-form" method="post" action="">
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<label for="upload"><?php _e('Choose an image from your computer:'); ?></label><br /><input type="file" id="upload" name="import" />
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<input type="hidden" name="action" value="save" />
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<?php wp_nonce_field('custom-background-upload', '_wpnonce-custom-background-upload') ?>
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<input type="submit" class="button" value="<?php esc_attr_e('Upload'); ?>" />
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</p>
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</form>
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</td>
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</tr>
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</tbody>
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</table>
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<h3><?php _e('Display Options') ?></h3>
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<form method="post" action="">
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<table class="form-table">
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<tbody>
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<tr valign="top">
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<th scope="row"><?php _e( 'Color' ); ?></th>
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<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Background Color' ); ?></span></legend>
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<input type="text" name="background-color" id="background-color" value="#<?php echo esc_attr(get_background_color()) ?>" />
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<input type="button" class="button" value="<?php esc_attr_e('Select a Color'); ?>" id="pickcolor" />
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<div id="colorPickerDiv" style="z-index: 100; background:#eee; border:1px solid #ccc; position:absolute; display:none;"></div>
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</fieldset></td>
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</tr>
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<?php if ( get_background_image() ) : ?>
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<tr valign="top">
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<th scope="row"><?php _e( 'Position' ); ?></th>
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<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Background Position' ); ?></span></legend>
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<label>
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<input name="background-position-x" type="radio" value="left"<?php checked('left', get_theme_mod('background_position_x', 'left')); ?> />
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<?php _e('Left') ?>
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</label>
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<label>
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<input name="background-position-x" type="radio" value="center"<?php checked('center', get_theme_mod('background_position_x', 'left')); ?> />
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<?php _e('Center') ?>
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</label>
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<label>
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<input name="background-position-x" type="radio" value="right"<?php checked('right', get_theme_mod('background_position_x', 'left')); ?> />
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<?php _e('Right') ?>
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</label>
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</fieldset></td>
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</tr>
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<tr valign="top">
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<th scope="row"><?php _e( 'Repeat' ); ?></th>
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<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Repeat' ); ?></span></legend>
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<label>
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<select name="background-repeat">
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<option value="no-repeat"<?php selected('no-repeat', get_theme_mod('background_repeat', 'repeat')); ?> ><?php _e('No repeat'); ?></option>
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<option value="repeat"<?php selected('repeat', get_theme_mod('background_repeat', 'repeat')); ?>><?php _e('Tile'); ?></option>
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<option value="repeat-x"<?php selected('repeat-x', get_theme_mod('background_repeat', 'repeat')); ?>><?php _e('Tile Horizontally'); ?></option>
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<option value="repeat-y"<?php selected('repeat-y', get_theme_mod('background_repeat', 'repeat')); ?>><?php _e('Tile Vertically'); ?></option>
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</select>
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</label>
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</fieldset></td>
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</tr>
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<tr valign="top">
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<th scope="row"><?php _e( 'Attachment' ); ?></th>
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<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Attachment' ); ?></span></legend>
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<label>
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<input name="background-attachment" type="radio" value="scroll" <?php checked('scroll', get_theme_mod('background_attachment', 'fixed')); ?> />
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<?php _e('Scroll') ?>
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</label>
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<label>
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<input name="background-attachment" type="radio" value="fixed" <?php checked('fixed', get_theme_mod('background_attachment', 'fixed')); ?> />
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<?php _e('Fixed') ?>
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</label>
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</fieldset></td>
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</tr>
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<?php endif; // get_background_image() ?>
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</tbody>
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</table>
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<?php wp_nonce_field('custom-background'); ?>
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<p class="submit"><input type="submit" class="button-primary" name="save-background-options" value="<?php esc_attr_e('Save Changes'); ?>" /></p>
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</form>
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</div>
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<?php
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}
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/**
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* Handle a Image upload for the background image.
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*
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* @since 3.0.0
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*/
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function handle_upload() {
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if ( empty($_FILES) )
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return;
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check_admin_referer('custom-background-upload', '_wpnonce-custom-background-upload');
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$overrides = array('test_form' => false);
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$file = wp_handle_upload($_FILES['import'], $overrides);
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if ( isset($file['error']) )
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wp_die( $file['error'] );
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$url = $file['url'];
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$type = $file['type'];
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$file = $file['file'];
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$filename = basename($file);
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// Construct the object array
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$object = array(
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'post_title' => $filename,
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'post_content' => $url,
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'post_mime_type' => $type,
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'guid' => $url
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);
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// Save the data
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$id = wp_insert_attachment($object, $file);
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// Add the meta-data
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wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
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set_theme_mod('background_image', esc_url($url));
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$thumbnail = wp_get_attachment_image_src( $id, 'thumbnail' );
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set_theme_mod('background_image_thumb', esc_url( $thumbnail[0] ) );
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do_action('wp_create_file_in_uploads', $file, $id); // For replication
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$this->updated = true;
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}
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}
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?>
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