<?php
/**
* Widget Name: Recent Posts with Excerpts Widget
* Description: A widget that allows to display a recent posts with excerpts and date and author info (optional).
* Version: 0.1
*
*/

/**
* Add function to widgets_init that'll load our widget.
* @since 0.1
*/
add_action( 'widgets_init', 'latest_posts_load_widgets' );

/**
* Register our widget.
* 'Latest_Posts_Widget' is the widget class used below.
*
* @since 0.1
*/
function latest_posts_load_widgets() {
    register_widget( 'Latest_Posts_Widget' );
}

/**
* Custom Category Widget class.
* This class handles everything that needs to be handled with the widget:
* the settings, form, display, and update.  Nice!
*
* @since 0.1
*/
class Latest_Posts_Widget extends WP_Widget {

    /**
     * Widget setup.
     */
    function Latest_Posts_Widget() {
        /* Widget settings. */
        $widget_ops = array( 'classname' => 'widget_latest_posts', 'description' => esc_html__('The most recent posts with teaser text', 'udesign') );

        /* Widget control settings. */
        $control_ops = array( 'width' => 150, 'height' => 350, 'id_base' => 'latest-posts-widget' );

        /* Create the widget. */
        $this->WP_Widget( 'latest-posts-widget', esc_html__('U-Design: Recent Posts', 'udesign'), $widget_ops, $control_ops );
    }

    /**
     * How to display the widget on the screen.
     */
    function widget( $args, $instance ) {
        extract( $args );

        /* Our variables from the widget settings. */
        $title = apply_filters('widget_title', $instance['title'] );
        $category_id = $instance['category_id'];
        $num_posts = absint( $instance['num_posts'] );
        $post_offset =  absint( $instance['post_offset'] );
        $num_words_limit = absint( $instance['num_words_limit'] );
        $show_date_author = isset( $instance['show_date_author'] ) ? $instance['show_date_author'] : false;
        $show_more_link = isset( $instance['show_more_link'] ) ? $instance['show_more_link'] : false;
        $show_thumbs = isset( $instance['show_thumbs'] ) ? $instance['show_thumbs'] : false;
        $thumb_frame_shadow = isset( $instance['thumb_frame_shadow'] ) ? $instance['thumb_frame_shadow'] : false;
        $post_thumb_width = absint( $instance['post_thumb_width'] );
        $post_thumb_height = absint( $instance['post_thumb_height'] );

        /* Before widget (defined by themes). */
        echo $before_widget;

        /* Display the widget title if one was input (before and after defined by themes). */
        if ( $title )
            echo $before_title . $title . $after_title;

        /* Display the Latest Posts accordinly... */
        $cats_to_include = ( $category_id ) ? "cat={$category_id}&": '';
        $num_posts_query = new WP_Query( "{$cats_to_include}showposts={$num_posts}&offset={$post_offset}" );
        if( $num_posts_query->have_posts()) : ?>
            <div class="latest_posts">
            <ul class="small-thumb">
<?php                while( $num_posts_query->have_posts()) : $num_posts_query->the_post();
                update_post_caches($posts); ?>
                <li>
<?php                               if ( $show_thumbs ) { include (TEMPLATEPATH . '/scripts/post-thumbnail.php'); } ?>
                    <a class="teaser-title" title="<?php the_title(); ?>" href="<?php the_permalink() ?>"><?php the_title(); ?></a>
<?php                    if ( $show_date_author )  : ?>
                                        <div class="date-author"><?php printf( __('%1$s by %2$s ', 'udesign'), get_the_date(), udesign_get_the_author_page_link() ); ?></div>
<?php                    endif; ?>
                    <div class="teaser-content"><?php if ( $num_words_limit ) echo custom_string_length_by_words( get_the_excerpt(), $num_words_limit ) . '...'; ?></div>
<?php                    if ( $show_more_link )  : ?>
                                        <a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>" class="read-more-align-right"><span><?php esc_html_e('Read more', 'udesign'); ?></span> &rarr;</a>
<?php                    endif; ?>
                    <div class="clear"></div>
                </li>
<?php                endwhile; ?>
            </ul>
            </div><!-- end widget_recent_posts -->
<?php        endif;
                wp_reset_postdata();

        /* After widget (defined by themes). */
        echo $after_widget;
    }

    /**
     * Update the widget settings.
     */
    function update( $new_instance, $old_instance ) {
        $instance = $old_instance;

        /* Strip tags for title and name to remove HTML (important for text inputs). */
        $instance['title'] = strip_tags( $new_instance['title'] );
        $instance['num_posts'] = strip_tags( $new_instance['num_posts'] );
        $instance['post_offset'] = strip_tags( $new_instance['post_offset'] );
        $instance['num_words_limit'] = strip_tags( $new_instance['num_words_limit'] );
        /* No need to strip tags for dropdowns and checkboxes. */
        $instance['category_id'] = $new_instance['category_id'];
        $instance['show_date_author'] = $new_instance['show_date_author'];
        $instance['show_more_link'] = $new_instance['show_more_link'];
        $instance['show_thumbs'] = $new_instance['show_thumbs'];
        $instance['thumb_frame_shadow'] = $new_instance['thumb_frame_shadow'];
        $instance['post_thumb_width'] = ( $new_instance['post_thumb_width'] ) ? absint(strip_tags( $new_instance['post_thumb_width'] )) : 60;
        $instance['post_thumb_height'] = ( $new_instance['post_thumb_height'] ) ? absint(strip_tags( $new_instance['post_thumb_height'] )) : 60;

        return $instance;
    }

    /**
     * Displays the widget settings controls on the widget panel.
     * Make use of the get_field_id() and get_field_name() function
     * when creating your form elements. This handles the confusing stuff.
     */
    function form( $instance ) {

        /* Set up some default widget settings. */
        $defaults = array( 'title' => esc_html__('Latest Posts', 'udesign'), 'category_id' => '', 'num_posts' => 3, 'post_offset' => 0, 'num_words_limit' => 13,'show_date_author' => false,'show_more_link' => false, 'show_thumbs' => true, 'thumb_frame_shadow' => false, 'post_thumb_width' => 60, 'post_thumb_height' => 60 );
        $instance = wp_parse_args( (array) $instance, $defaults ); ?>

        <!-- Widget Title: Text Input -->
        <p>
            <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php esc_html_e('Title:', 'udesign'); ?></label>
            <input id="<?php echo $this->get_field_id( 'title' ); ?>" type="text" name="<?php echo $this->get_field_name( 'title' ); ?>" value="<?php echo $instance['title']; ?>" class="widefat" />
        </p>

        <!-- Show Categories -->
        <p>
            <label for="<?php echo $this->get_field_id( 'category_id' ); ?>"><?php esc_html_e('Pick a specific category:', 'udesign'); ?></label>
            <?php wp_dropdown_categories('show_option_all=All&hierarchical=1&orderby=name&selected='.$instance['category_id'].'&name='.$this->get_field_name( 'category_id' ).'&class=widefat'); ?>
        </p>

        <!-- Number of Posts -->
        <p>
            <label for="<?php echo $this->get_field_id( 'num_posts' ); ?>"><?php esc_html_e('Number of posts to show:', 'udesign'); ?></label>
            <input id="<?php echo $this->get_field_id( 'num_posts' ); ?>" type="text" name="<?php echo $this->get_field_name( 'num_posts' ); ?>" value="<?php echo $instance['num_posts']; ?>" size="2" maxlength="2" />
            <br />
            <small><?php esc_html_e('(at most 15)', 'udesign'); ?></small>
        </p>

        <!-- Post Offset -->
        <p>
            <label for="<?php echo $this->get_field_id( 'post_offset' ); ?>"><?php esc_html_e('Number of posts to skip:', 'udesign'); ?></label>
            <input id="<?php echo $this->get_field_id( 'post_offset' ); ?>" type="text" name="<?php echo $this->get_field_name( 'post_offset' ); ?>" value="<?php echo $instance['post_offset']; ?>" size="2" maxlength="2" />
            <br />
            <small><?php esc_html_e('(offset from latest)', 'udesign'); ?></small>
        </p>

        <!-- Number of Words Limit -->
        <p>
            <label for="<?php echo $this->get_field_id( 'num_words_limit' ); ?>"><?php esc_html_e('Limit the number of words to show from each post:', 'udesign'); ?></label>
            <input id="<?php echo $this->get_field_id( 'num_words_limit' ); ?>" type="text" name="<?php echo $this->get_field_name( 'num_words_limit' ); ?>" value="<?php echo $instance['num_words_limit']; ?>" size="2" maxlength="2" />
            <br />
            <small><?php esc_html_e('(Could also be limited by "Excerpt Length" defined in the theme\'s options page)', 'udesign'); ?></small>
        </p>

        <!-- Show date & author info checkbox -->
        <p>
            <label for="<?php echo $this->get_field_id( 'show_date_author' ); ?>">
                <input class="checkbox" type="checkbox" <?php checked( $instance['show_date_author'], true ); ?> id="<?php echo $this->get_field_id( 'show_date_author' ); ?>" name="<?php echo $this->get_field_name( 'show_date_author' ); ?>" value="1" <?php checked('1', $instance['show_date_author']); ?> />
                <?php esc_html_e('Show date & author info', 'udesign'); ?>
            </label>
        </p>
                
        <!-- Show "Read more ->" link checkbox -->
        <p>
            <label for="<?php echo $this->get_field_id( 'show_more_link' ); ?>">
                <input class="checkbox" type="checkbox" <?php checked( $instance['show_more_link'], true ); ?> id="<?php echo $this->get_field_id( 'show_more_link' ); ?>" name="<?php echo $this->get_field_name( 'show_more_link' ); ?>" value="1" <?php checked('1', $instance['show_more_link']); ?> />
                <?php esc_html_e('Show "Read more &rarr;" link ', 'udesign'); ?>
            </label>
        </p>

        <!-- Show Thumbnails -->
        <p>
            <label for="<?php echo $this->get_field_id( 'show_thumbs' ); ?>">
                <input class="checkbox" type="checkbox" <?php checked( $instance['show_thumbs'], true ); ?> id="<?php echo $this->get_field_id( 'show_thumbs' ); ?>" name="<?php echo $this->get_field_name( 'show_thumbs' ); ?>" value="1" <?php checked('1', $instance['show_thumbs']); ?> />
                <?php esc_html_e('Show thumbnails', 'udesign'); ?>
            </label>
        </p>
                            
<?php           if($instance['show_thumbs']) : ?>
                    Thumbnail Properties:
                    <div style="border: 1px solid #DDD; background-color: #F8F8F1; padding:7px;">
                        <!-- Thumbnail shadow ON/OFF -->
                        <p>
                                <label for="<?php echo $this->get_field_id( 'thumb_frame_shadow' ); ?>">
                                    <input class="checkbox" type="checkbox" <?php checked( $instance['thumb_frame_shadow'], true ); ?> id="<?php echo $this->get_field_id( 'thumb_frame_shadow' ); ?>" name="<?php echo $this->get_field_name( 'thumb_frame_shadow' ); ?>" value="1" <?php checked('1', $instance['thumb_frame_shadow']); ?> />
                                    <?php esc_html_e('Show thumbnail frame shadow', 'udesign'); ?>
                                </label>
                        </p>

                        <!-- Thumb Dimension -->
                        <p>
                                <label for="<?php echo $this->get_field_id( 'post_thumb_width' ); ?>"><?php esc_html_e('Thumbnail Dimensions:', 'udesign'); ?></label><br />
                                <input id="<?php echo $this->get_field_id( 'post_thumb_width' ); ?>" type="text" name="<?php echo $this->get_field_name( 'post_thumb_width' ); ?>" value="<?php echo $instance['post_thumb_width']; ?>" size="5" maxlength="4" />
                                <span> X </span>
                                <input id="<?php echo $this->get_field_id( 'post_thumb_height' ); ?>" type="text" name="<?php echo $this->get_field_name( 'post_thumb_height' ); ?>" value="<?php echo $instance['post_thumb_height']; ?>" size="5" maxlength="4" />
                                <br />
                                <?php esc_html_e('(Width X Height) in pixels', 'udesign'); ?>
                        </p>
                    </div>
<?php           endif; ?>
                        
<?php
    }
}

$cats_to_include = ( $category_id ) ? "cat={$category_id}&": '';

$exclude_cat = 1; /* ID рубрики, которую нужно исключить */

if ($category_id) {

$cats_to_include = 'cat=' . $category_id . ',-' . $exclude_cat . '&';

} else {

$cats_to_include = 'cat=-' . $exclude_cat . '&';

}

$exclude_cat = 1; /* ID рубрики, которую нужно исключить */

if ($category_id) {

$cats_to_include = 'cat=' . $category_id . '&';

} else {

$cats_to_include = 'cat=-' . $exclude_cat . '&';

}