399 lines
11 KiB
PHP
399 lines
11 KiB
PHP
<?php
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/**
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* The custom background image 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 image class.
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*
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* @since unknown
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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 unknown
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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 unknown
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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 = $admin_image_div_callback;
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}
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/**
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* Setup the hooks for the Custom Background admin page.
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*
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* @since unknown
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*/
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function init() {
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if ( ! current_user_can('switch_themes') )
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return;
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$page = add_theme_page(__('Background'), __('Background'), 'switch_themes', 'custom-background', array(&$this, 'admin_page'));
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add_action("admin_print_scripts-$page", array(&$this, 'js_includes'));
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add_action("admin_print_styles-$page", array(&$this, 'css_includes'));
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add_action("admin_head-$page", array(&$this, 'js'), 50);
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add_action("admin_head-$page", array(&$this, 'take_action'), 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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* Get the current step.
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*
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* @since unknown
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*
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* @return int Current step
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*/
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function step() {
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if ( ! isset( $_GET['step'] ) )
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return 1;
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$step = (int) $_GET['step'];
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if ( $step < 1 || 3 < $step )
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$step = 1;
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return $step;
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}
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/**
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* Setup the enqueue for the JavaScript files.
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*
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* @since unknown
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*/
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function js_includes() {
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$step = $this->step();
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if ( 1 == $step )
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wp_enqueue_script('farbtastic');
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}
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/**
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* Setup the enqueue for the CSS files
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*
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* @since unknown
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*/
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function css_includes() {
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$step = $this->step();
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if ( 1 == $step )
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wp_enqueue_style('farbtastic');
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}
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/**
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* Execute custom background modification.
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*
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* @since unknown
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*/
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function take_action() {
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if ( ! current_user_can('switch_themes') )
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return;
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if ( empty($_POST) )
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return;
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check_admin_referer('custom-background');
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if ( isset($_POST['reset-background']) )
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remove_theme_mods();
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if ( isset($_POST['background-repeat']) ) {
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if ( in_array($_POST['background-repeat'], array('repeat', 'no-repeat')) )
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$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']) ) {
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if ( in_array($_POST['background-position'], array('center', 'right', 'left')) )
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$position = $_POST['background-position'];
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else
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$position = 'left';
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set_theme_mod('background_position', $position);
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}
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if ( isset($_POST['background-attachment']) ) {
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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['remove-background']) )
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set_theme_mod('background_image', '');
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if ( isset( $_POST['background-color'] ) ) {
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$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', $color);
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else
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set_theme_mod('background_color', '');
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}
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}
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/**
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* Execute Javascript depending on step.
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*
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* @since unknown
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*/
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function js() {
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$step = $this->step();
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if ( 1 == $step )
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$this->js_1();
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}
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/**
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* Display Javascript based on Step 1.
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*
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* @since unknown
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*/
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function js_1() { ?>
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<script type="text/javascript">
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var buttons = ['#pickcolor'],
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farbtastic;
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function pickColor(color) {
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jQuery('#background-color').val(color);
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farbtastic.setColor(color);
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}
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jQuery(document).ready(function() {
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jQuery('#pickcolor').click(function() {
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jQuery('#colorPickerDiv').show();
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});
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farbtastic = jQuery.farbtastic('#colorPickerDiv', function(color) { pickColor(color); });
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pickColor('#<?php background_color(); ?>');
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});
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jQuery(document).mousedown(function(){
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hide_picker(); // Make the picker disappear if you click outside its div element
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});
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function hide_picker(what) {
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var update = false;
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jQuery('#colorPickerDiv').each(function(){
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var id = jQuery(this).attr('id');
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if (id == what) {
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return;
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}
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var display = jQuery(this).css('display');
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if (display == 'block') {
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jQuery(this).fadeOut(2);
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}
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});
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}
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</script>
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<?php
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}
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/**
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* Display first step of custom background image page.
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*
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* @since unknown
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*/
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function step_1() {
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if ( isset($_GET['updated']) && $_GET['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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<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 ( get_background_image() ) { ?>
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<p><?php _e('This is your current background image.'); ?></p>
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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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<div id="custom-background-image" style="background-color: #<?php background_color(); ?>;">
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<img class="custom-background-image" src="<?php background_image(); ?>" />
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</div>
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<?php }
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} else { ?>
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<p><?php _e('There is currently no background image.'); ?></p> <?php
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}
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if ( get_background_image() ) : ?>
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<h2><?php _e('Change Display Options') ?></h2>
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<form method="post" action="<?php echo esc_attr(add_query_arg('step', 1)) ?>">
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<table>
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<thead>
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<tr>
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<th scope="col"><?php _e( 'Position' ); ?></th>
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<th scope="col"><?php _e( 'Repeat' ); ?></th>
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<th scope="col"><?php _e( 'Attachment' ); ?></th>
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<th scope="col"><?php _e( 'Color' ); ?></th>
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</tr>
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<tbody>
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<tr>
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<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Position' ); ?></span></legend>
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<label>
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<input name="background-position" type="radio" value="left" <?php checked('left', get_theme_mod('background_position', '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" type="radio" value="center" <?php checked('center', get_theme_mod('background_position', '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" type="radio" value="right" <?php checked('right', get_theme_mod('background_position', 'left')); ?> />
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<?php _e('Right') ?>
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</label>
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</fieldset></td>
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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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<input name="background-repeat" type="radio" value="no-repeat" <?php checked('no-repeat', get_theme_mod('background_repeat', 'repeat')); ?> />
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<?php _e('No repeat') ?>
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</label>
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<label>
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<input name="background-repeat" type="radio" value="repeat" <?php checked('repeat', get_theme_mod('background_repeat', 'repeat')); ?> />
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<?php _e('Tile') ?>
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</label>
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</fieldset></td>
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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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<td><fieldset><legend class="screen-reader-text"><span><?php _e( '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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</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" name="save-background-options" value="<?php esc_attr_e('Save Changes'); ?>" /></p>
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</form>
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<?php endif; ?>
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<h2><?php _e('Upload New Background Image'); ?></h2>
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<form enctype="multipart/form-data" id="uploadForm" method="POST" action="<?php echo esc_attr(add_query_arg('step', 2)) ?>">
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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') ?>
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<p class="submit">
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<input type="submit" value="<?php esc_attr_e('Upload'); ?>" />
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</p>
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</form>
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<?php if ( get_background_image() ) : ?>
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<h2><?php _e('Remove Background Image'); ?></h2>
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<p><?php _e('This will remove the background image. You will not be able to retrieve any customizations.') ?></p>
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<form method="post" action="<?php echo esc_attr(add_query_arg('step', 1)) ?>">
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<?php wp_nonce_field('custom-background'); ?>
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<input type="submit" class="button" name="remove-background" value="<?php esc_attr_e('Remove Background'); ?>" />
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</form>
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<?php endif; ?>
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</div>
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<?php
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}
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/**
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* Display second step of custom background image page.
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*
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* @since unknown
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*/
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function step_2() {
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check_admin_referer('custom-background');
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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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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' => $url);
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// Save the data
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$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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do_action('wp_create_file_in_uploads', $file, $id); // For replication
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return $this->finished();
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}
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/**
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* Display last step of custom header image page.
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*
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* @since unknown
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*/
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function finished() {
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$_GET['updated'] = 1;
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$this->step_1();
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}
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/**
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* Display the page based on the current step.
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*
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* @since unknown
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*/
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function admin_page() {
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if ( ! current_user_can('switch_themes') )
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wp_die(__('You do not have permission to customize the background.'));
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$step = $this->step();
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if ( 1 == $step )
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$this->step_1();
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elseif ( 2 == $step )
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$this->step_2();
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}
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}
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?>
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