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<?php
/**
* Adds thumbnail options to taxonomies
*
* @package Wanderfuls WordPress Theme
* @subpackage Framework
*/
// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
// Start Class
if ( ! class_exists( 'TB_Tax_Thumbnails' ) ) {
class TB_Tax_Thumbnails {
/**
* Main constructor
*
* @since 2.1.0
*/
public function __construct() {
add_action( 'admin_init', array( $this, 'admin_init' ) );
add_action( 'template_redirect', array( $this, 'front_end' ) ); // must use this hook
}
/**
* Initialize things in the backend
*
* @since 2.1.0
*/
public function admin_init() {
// Get taxonomies
$taxonomies = apply_filters( 'tb_thumbnail_taxonomies', get_taxonomies() );
// Remove woo
if ( isset( $taxonomies['product_cat'] ) ) {
unset( $taxonomies['product_cat'] );
}
// Loop through taxonomies
foreach ( $taxonomies as $taxonomy ) {
// Add forms
add_action( $taxonomy . '_add_form_fields', array( $this, 'add_form_fields' ) );
add_action( $taxonomy . '_edit_form_fields', array( $this, 'edit_form_fields' ) );
// Add columns
add_filter( 'manage_edit-'. $taxonomy .'_columns', array( $this, 'admin_columns' ) );
add_filter( 'manage_'. $taxonomy .'_custom_column', array( $this, 'admin_column' ), 10, 3 );
// Save forms
add_action( 'created_'. $taxonomy, array( $this, 'save_forms' ), 10, 3 );
add_action( 'edit_'. $taxonomy, array( $this, 'save_forms' ), 10, 3 );
}
}
/**
* Initialize things in the front end
*
* @since 2.1.0
*/
public function front_end() {
if ( ! is_search() && ( is_tax() || is_category() || is_tag() ) ) {
add_filter( 'tb_page_header_style', array( $this, 'page_header_style' ) );
add_filter( 'tb_page_header_background_image', array( $this, 'page_header_bg' ) );
}
}
/**
* Add Thumbnail field to add form fields
*
* @since 2.1.0
*/
public function add_form_fields() {
// Enqueue media for media selector
wp_enqueue_media();
// Get current taxonomy
$taxonomy = get_taxonomy( $_GET['taxonomy'] );
$taxonomy = $taxonomy->labels->singular_name; ?>
<div class="form-field">
<label for="display_type"><?php _e( 'Page Header Thumbnail', 'tb' ); ?></label>
<select id="tb_term_page_header_image" name="tb_term_page_header_image" class="postform">
<option value=""><?php _e( 'Default', 'tb' ); ?></option>
<option value="false"><?php _e( 'No', 'tb' ); ?></option>
<option value="true"><?php _e( 'Yes', 'tb' ); ?></option>
</select>
</div>
<div class="form-field">
<label for="term-thumbnail"><?php _e( 'Thumbnail', 'tb' ); ?></label>
<div>
<div id="tb-term-thumbnail" style="float:left;margin-right:10px;">
<img class="tb-term-thumbnail-img" src="<?php echo tb_placeholder_img_src(); ?>" width="60px" height="60px" />
</div>
<input type="hidden" id="tb_term_thumbnail" name="tb_term_thumbnail" />
<button type="submit" class="tb-remove-term-thumbnail button"><?php _e( 'Remove image', 'tb' ); ?></button>
<button type="submit" class="tb-add-term-thumbnail button"><?php _e( 'Upload/Add image', 'tb' ); ?></button>
<script type="text/javascript">
// Only show the "remove image" button when needed
if ( ! jQuery( '#tb_term_thumbnail' ).val() ) {
jQuery( '.tb-remove-term-thumbnail' ).hide();
}
// Uploading files
var file_frame;
jQuery( document ).on( 'click', '.tb-add-term-thumbnail', function( event ) {
event.preventDefault();
// If the media frame already exists, reopen it.
if ( file_frame ) {
file_frame.open();
return;
}
// Create the media frame.
file_frame = wp.media.frames.downloadable_file = wp.media({
title : '<?php _e( 'Choose an image', 'tb' ); ?>',
button : {
text : '<?php _e( 'Use image', 'tb' ); ?>',
},
multiple : false
});
// When an image is selected, run a callback.
file_frame.on( 'select', function() {
attachment = file_frame.state().get( 'selection' ).first().toJSON();
jQuery( '#tb_term_thumbnail' ).val( attachment.id );
jQuery( '.tb-term-thumbnail-img' ).attr( 'src', attachment.url );
jQuery( '.tb-remove-term-thumbnail' ).show();
});
// Finally, open the modal.
file_frame.open();
});
jQuery( document ).on( 'click', '.tb-remove-term-thumbnail', function( event ) {
jQuery( '.tb-term-thumbnail' ).attr( 'src', '<?php echo tb_placeholder_img_src(); ?>' );
jQuery( '#tb_term_thumbnail' ).val( '' );
jQuery( '.tb-remove-term-thumbnail' ).hide();
return false;
});
</script>
</div>
<div class="clear"></div>
</div>
<?php
}
/**
* Add Thumbnail field to edit form fields
*
* @since 2.1.0
*/
public function edit_form_fields( $term ) {
// Enqueue media for media selector
wp_enqueue_media();
// Get current taxonomy
$term_id = $term->term_id;
$taxonomy = get_taxonomy( $_GET['taxonomy'] );
$taxonomy = $taxonomy->labels->singular_name;
// Get term data
$term_data = tb_get_term_data();
// Get thumbnail
$thumbnail_id = isset( $term_data[$term_id]['thumbnail'] ) ? $term_data[$term_id]['thumbnail'] : '';
if ( $thumbnail_id ) {
$thumbnail_src = wp_get_attachment_image_src( $thumbnail_id, 'thumbnail', false );
$thumbnail_url = ! empty( $thumbnail_src[0] ) ? $thumbnail_src[0] : '';
}
// Get page header setting
$page_header_bg = isset( $term_data[$term_id]['page_header_bg'] ) ? $term_data[$term_id]['page_header_bg'] : ''; ?>
<tr class="form-field">
<th scope="row" valign="top"><label><?php _e( 'Page Header Thumbnail', 'tb' ); ?></label></th>
<td>
<select id="tb_term_page_header_image" name="tb_term_page_header_image" class="postform">
<option value="" <?php selected( '', $page_header_bg ); ?>><?php _e( 'Default', 'tb' ); ?></option>
<option value="false" <?php selected( 'false', $page_header_bg ); ?>><?php _e( 'No', 'tb' ); ?></option>
<option value="true" <?php selected( 'true', $page_header_bg ); ?>><?php _e( 'Yes', 'tb' ); ?></option>
</select>
</td>
</tr>
<tr class="form-field">
<th scope="row" valign="top">
<label for="term-thumbnail"><?php _e( 'Thumbnail', 'tb' ); ?></label>
</th>
<td>
<div id="tb-term-thumbnail" style="float:left;margin-right:10px;">
<?php if ( ! empty( $thumbnail_url ) ) { ?>
<img class="tb-term-thumbnail-img" src="<?php echo $thumbnail_url; ?>" width="60px" height="60px" />
<?php } else { ?>
<img class="tb-term-thumbnail-img" src="<?php echo tb_placeholder_img_src(); ?>" width="60px" height="60px" />
<?php } ?>
</div>
<input type="hidden" id="tb_term_thumbnail" name="tb_term_thumbnail" value="<?php echo $thumbnail_id; ?>" />
<button type="submit" class="tb-remove-term-thumbnail button"<?php if ( ! $thumbnail_id ) echo 'style="display:none;"'; ?>>
<?php _e( 'Remove image', 'tb' ); ?>
</button>
<button type="submit" class="tb-add-term-thumbnail button">
<?php _e( 'Upload/Add image', 'tb' ); ?>
</button>
<script type="text/javascript">
// Uploading files
var file_frame;
jQuery( document ).on( 'click', '.tb-add-term-thumbnail', function( event ) {
event.preventDefault();
// If the media frame already exists, reopen it.
if ( file_frame ) {
file_frame.open();
return;
}
// Create the media frame.
file_frame = wp.media.frames.downloadable_file = wp.media({
title : '<?php _e( 'Choose an image', 'tb' ); ?>',
button : {
text : '<?php _e( 'Use image', 'tb' ); ?>',
},
multiple : false
} );
// When an image is selected, run a callback.
file_frame.on( 'select', function() {
attachment = file_frame.state().get( 'selection' ).first().toJSON();
jQuery( '#tb_term_thumbnail' ).val( attachment.id );
jQuery( '.tb-term-thumbnail-img' ).attr( 'src', attachment.url );
jQuery( '.tb-remove-term-thumbnail' ).show();
} );
// Finally, open the modal.
file_frame.open();
} );
jQuery( document ).on( 'click', '.tb-remove-term-thumbnail', function( event ) {
jQuery( '.tb-term-thumbnail-img' ).attr( 'src', '<?php echo tb_placeholder_img_src(); ?>' );
jQuery( '#tb_term_thumbnail' ).val( '' );
jQuery( '.tb-remove-term-thumbnail' ).hide();
return false;
} );
</script>
<div class="clear"></div>
</td>
</tr>
<?php
}
/**
* Adds the thumbnail to the database
*
* @since 2.1.0
*/
public function add_term_data( $term_id, $key, $data ) {
// Validate data
if ( empty( $term_id ) || empty( $data ) || empty( $key ) ) {
return;
}
// Get thumbnails
$term_data = get_option( 'tb_term_data' );
// Add to options
$term_data[$term_id][$key] = $data;
// Update option
update_option( 'tb_term_data', $term_data );
}
/**
* Deletes the thumbnail from the database
*
* @since 2.1.0
*/
public function remove_term_data( $term_id, $key ) {
// Validate data
if ( empty( $term_id ) || empty( $key ) ) {
return;
}
// Get thumbnails
$term_data = get_option( 'tb_term_data' );
// Add to options
if ( isset( $term_data[$term_id][$key] ) ) {
unset( $term_data[$term_id][$key] );
}
// Update option
update_option( 'tb_term_data', $term_data );
}
/**
* Update thumbnail value
*
* @since 2.1.0
*/
public function update_thumbnail( $term_id, $thumbnail_id ) {
// Add thumbnail
if ( ! empty( $thumbnail_id ) ) {
$this->add_term_data( $term_id, 'thumbnail', $thumbnail_id );
}
// Delete thumbnail
else {
$this->remove_term_data( $term_id, 'thumbnail' );
}
}
/**
* Update page header image option
*
* @since 2.1.0
*/
public function update_page_header_img( $term_id, $display ) {
// Add option
if ( ! empty( $display ) ) {
$this->add_term_data( $term_id, 'page_header_bg', $display );
}
// Remove option
else {
$this->remove_term_data( $term_id, 'page_header_bg' );
}
}
/**
* Save Forms
*
* @since 2.1.0
*/
public function save_forms( $term_id, $tt_id = '', $taxonomy = '' ) {
if ( isset( $_POST['tb_term_thumbnail'] ) ) {
$this->update_thumbnail( $term_id, $_POST['tb_term_thumbnail'] );
}
if ( isset( $_POST['tb_term_page_header_image'] ) ) {
$this->update_page_header_img( $term_id, $_POST['tb_term_page_header_image'] );
}
}
/**
* Thumbnail column added to category admin.
*
* @since 2.1.0
*/
public function admin_columns( $columns ) {
$columns['tb-term-thumbnail-col'] = __( 'Thumbnail', 'tb' );
return $columns;
}
/**
* Thumbnail column value added to category admin.
*
* @since 2.1.0
*/
public function admin_column( $columns, $column, $id ) {
// Add thumbnail to columns
if ( 'tb-term-thumbnail-col' == $column ) {
if ( $thumbnail_id = $this->get_term_thumbnail_id( $id, 'thumbnail_id', true ) ) {
$image = wp_get_attachment_image_src( $thumbnail_id, 'thumbnail' );
$image = $image[0];
} else {
$image = tb_placeholder_img_src();
}
$columns .= '<img src="' . esc_url( $image ) . '" alt="' . __( 'Thumbnail', 'tb' ) . '" class="wp-post-image" height="48" width="48" />';
}
// Return columns
return $columns;
}
/**
* Retrieve term thumbnail
*
* @since 2.1.0
*/
public function get_term_thumbnail_id( $term_id = null ) {
// Get term id if not defined and is tax
$term_id = $term_id ? $term_id : get_queried_object()->term_id;
// Return if no term id
if ( ! $term_id ) {
return;
}
// Get data
$term_data = get_option( 'tb_term_data' );
$term_data = ! empty( $term_data[ $term_id ] ) ? $term_data[ $term_id ] : '';
// Return thumbnail ID
if ( $term_data && ! empty( $term_data['thumbnail'] ) ) {
return $term_data['thumbnail'];
}
}
/**
* Check if the term page header should have a background image
*
* @since 2.1.0
*/
public function term_has_page_header_bg( $term_id = '' ) {
// True by default
$bool = true;
// Get Options and extract thumbnail
$term_data = tb_global_obj( 'term_data' );
// Return thumbnail ID
if ( ! empty( $term_data['page_header_bg'] ) ) {
$option = $term_data[$term_id]['page_header_bg'];
$bool = ( 'true' == $option ) ? true : $bool;
$bool = ( 'false' == $option ) ? false : $bool;
}
// Apply filters
$bool = apply_filters( 'tb_term_has_page_header_bg', $bool );
// Return bool
return $bool;
}
/**
* Check if the term page header should have a background image
*
* @since 2.1.0
*/
public function page_header_style( $style ) {
// Return background-image for taxonomies where it's enabled and defined
if ( $this->term_has_page_header_bg() ) {
// Get term thumbnail
$term_thumbnail = $this->get_term_thumbnail_id();
// Set style to background if term_thumbnail exists
if ( $term_thumbnail ) {
$style = 'background-image';
}
}
// Return style
return $style;
}
/**
* Sets correct page header background
*
* @since 2.1.0
*/
public function page_header_bg( $image ) {
// Get term thumbnail
$term_thumbnail = $this->get_term_thumbnail_id();
// Set style to background if term_thumbnail exists
if ( $term_thumbnail ) {
$image = wp_get_attachment_image_src( $term_thumbnail, 'full' );
$image = $image[0];
}
// Return background
return $image;
}
}
}
new TB_Tax_Thumbnails();