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book-widget.php
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book-widget.php
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<?php
/**
* This file does the book widget
*
*/
class mbdb_book_widget extends WP_Widget {
// constructor
function __construct() {
$widget_ops = array('classname' => 'mbdb_book_widget', 'description' => __('Shows the cover of the book of your choosing with a link to the book page', 'mooberry-book-manager'));
parent::__construct('mbdb_book_widget', 'Mooberry Book Manager '. _x('Book', 'noun', 'mooberry-book-manager'), $widget_ops );
}
// widget form creation
function form($instance) {
$instance = wp_parse_args((array) $instance);
// Check values
if( $instance) {
do_action('mbdb_widget_pre_get_data', $instance);
$mbdb_widget_title = esc_attr($instance['mbdb_widget_title']);
$mbdb_widget_show_title = esc_attr($instance['mbdb_widget_show_title']);
$mbdb_widget_type = esc_attr($instance['mbdb_widget_type']);
$mbdb_bookID = esc_attr($instance['mbdb_bookID']);
$mbdb_widget_cover_size = esc_attr($instance['mbdb_widget_cover_size']);
do_action('mbdb_widget_post_get_data', $instance);
} else {
do_action('mbdb_widget_pre_set_defaults');
$mbdb_widget_title = '';
$mbdb_bookID=0;
$mbdb_widget_show_title = 'yes';
$mbdb_widget_type = 'random';
$mbdb_widget_cover_size = 100;
$mbdb_book_title = '';
do_action('mbdb_widget_post_set_defaults');
}
$options = apply_filters('mbdb_book_widget_options', array('random' => __('Random Book', 'mooberry-book-manager'),
'newest' => __('Newest Book', 'mooberry-book-manager'),
'coming-soon' => __('Future Book', 'mooberry-book-manager'),
'specific' => __('Specific Book', 'mooberry-book-manager')
)
);
$widget_type_dropdown = mbdb_dropdown($this->get_field_id('mbdb_widget_type'), $options, $mbdb_widget_type, 'no', 0, $this->get_field_name('mbdb_widget_type'));
include( plugin_dir_path(__FILE__) . '/views/admin-book-widget.php');
}
// widget update
function update($new_instance, $old_instance) {
$instance = $old_instance;
do_action('mbdb_widget_pre_update', $new_instance, $old_instance);
$instance['mbdb_widget_title'] = strip_tags($new_instance['mbdb_widget_title']);
$instance['mbdb_bookID'] = strip_tags($new_instance['mbdb_bookID']);
$instance['mbdb_widget_show_title'] = strip_tags($new_instance['mbdb_widget_show_title']);
$instance['mbdb_widget_type'] = strip_tags($new_instance['mbdb_widget_type']);
if ($new_instance['mbdb_widget_cover_size'] < 50) {
$new_instance['mbdb_widget_cover_size'] = 50;
}
$instance['mbdb_widget_cover_size'] = strip_tags($new_instance['mbdb_widget_cover_size']);
do_action('mbdb_widget_post_update', $new_instance, $instance);
return apply_filters('mbdb_widget_update', $instance, $new_instance);
}
// widget display
function widget($args, $instance) {
extract($args);
$mbdb_bookID = $instance['mbdb_bookID'];
$mbdb_widget_type = apply_filters('mbdb_widget_type', $instance['mbdb_widget_type']);
$book = null;
do_action('mbdb_widget_pre_get_books', $instance);
switch ($mbdb_widget_type) {
case 'random':
// get book ID of a random book
$book = apply_filters('mbdb_widget_random_book_list', MBDB()->books->get_random_book(), $instance);
break;
case "newest":
// get book ID of most recent book
$book = apply_filters('mbdb_widget_newest_book_list', MBDB()->books->get_most_recent_book(), $instance);
break;
case "coming-soon":
// get books with future or blank release dates
$book = apply_filters('mbdb_widget_coming_soon_book_list', MBDB()->books->get_upcoming_book(), $instance);
break;
case "specific":
// make sure seected book is still a valid book
$book = apply_filters('mbdb_widget_specific_book_list', MBDB()->books->get($mbdb_bookID), $instance);
break;
}
$book = apply_filters('mbdb_widget_book', $book, $instance);
do_action('mbdb_widget_post_get_books', $instance, $book);
//output
if ($book == null) {
$mbdb_bookID = 0;
$mbdb_book_title = '';
} else {
$mbdb_bookID = $book->book_id;
$mbdb_book_title = get_the_title($mbdb_bookID);
}
$mbdb_widget_title = apply_filters('mbdb_widget_title', $instance['mbdb_widget_title']);
$mbdb_widget_show_title = apply_filters('mbdb_widget_show_title', $instance['mbdb_widget_show_title']);
$mbdb_cover_size = apply_filters('mbdb_widget_cover_size', $instance['mbdb_widget_cover_size']);
$mbdb_bookID = apply_filters('mbdb_widget_bookID', $mbdb_bookID);
$mbdb_book_title = apply_filters('mbdb_widget_book_title', $mbdb_book_title);
do_action('mbdb_widget_pre_display');
echo $before_widget;
echo $before_title . esc_html($mbdb_widget_title) . $after_title;
if ($mbdb_bookID == 0) {
echo apply_filters('mbdb_widget_no_books_found', '<em>' . __('No books found', 'mooberry-book-manager') . '</em>');
} else {
$image_src = $book->cover;
$image_id = $book->cover_id;
//$image_src = get_post_meta( $mbdb_bookID, '_mbdb_cover', true );
$book_link = get_permalink( $mbdb_bookID );
if ( $book_link != '' ) {
do_action('mbdb_widget_pre_link', $book_link);
echo '<A class="mbm-widget-link" HREF="' . esc_url($book_link) . '"> ';
}
if (!$image_src || $image_src == '') {
// v3.0 check for placeholder image setting
$show_placeholder_cover = mbdb_get_option('show_placeholder_cover');
if (is_array($show_placeholder_cover)) {
if (in_array('widget', $show_placeholder_cover)) {
$image_src = mbdb_get_option('coming-soon');
}
}
}
if ($image_src && $image_src !== '') {
do_action('mbdb_widget_pre_image', $image_src);
$alt = mbdb_get_alt_text( $image_id, __('Book Cover:', 'mooberry-book-manager') . ' ' . $mbdb_book_title);
echo '<img class="mbm-widget-cover" style="width:' . esc_attr($mbdb_cover_size) . 'px;padding-top:10px;" src="' . esc_url($image_src) . '" ' . $alt . ' /> ';
do_action('mbdb_widget_post_image', $image_src);
}
if ($mbdb_widget_show_title == 'yes') {
if ( $mbdb_book_title != '' ) {
do_action('mbdb_widget_pre_book_title', $mbdb_book_title);
echo '<P><span class="mbm-widget-title">' . esc_html($mbdb_book_title) . '</span></P>';
do_action('mbdb_widget_post_book_title', $mbdb_book_title);
}
}
if ($book_link != '') {
echo '</A>';
do_action('mbdb_widget_post_link');
}
}
//echo '</div>' .
echo $after_widget;
do_action('mbdb_widget_post_display');
}
}