<?php
/*
* The loop-index.php file is responsible to display wordpress blog posts
* Since this theme supports post formats (different styling and behaviour of certain posts, for example galleries, tweets etc)
* the output of the loop-index.php file is filtered before it is passed to the users browser.
*
* The filtering takes place in the functions defined in this file
*/
// ========================= default post format ============================
add_filter( 'post-format-standard', 'avia_default_title_filter', 10, 1 );
// ========================= gallery post format ============================
add_filter( 'post-format-gallery', 'avia_gallery_slideshow_filter', 10, 1 );
// ========================= video post format ==============================
add_filter( 'post-format-video', 'avia_video_slideshow_filter', 10, 1 );
// ========================= image post format ==============================
add_filter( 'post-format-image', 'avia_image_slideshow_filter', 10, 1 );
// ========================= link post format ===============================
add_filter( 'post-format-link', 'avia_link_content_filter', 10, 1 );
// ========================= blockquote post format =========================
add_filter( 'post-format-quote', 'avia_quote_content_filter', 10, 1 );
// ========================= audio post format =========================
add_filter( 'post-format-audio', 'avia_audio_content_filter', 10, 1 );
// =============================================================================================================================
/**
* The avia_default_title_filter creates the default title for your posts.
* This function is used by most post types
*/
if(!function_exists('avia_default_title_filter'))
{
function avia_default_title_filter($current_post)
{
if(!empty($current_post['title']))
{
$heading = is_singular() ? "h1" : "h2";
$output = "";
//$output .= "<{$heading} class='post-title entry-title ". avia_offset_class('meta', false). "'>";
$output .= "<{$heading} class='post-title entry-title' ".avia_markup_helper(array('context' => 'entry_title','echo'=>false)).">";
$output .= " <a href='".get_permalink()."' rel='bookmark' title='". __('Permanent Link:','avia_framework')." ".$current_post['title']."'>".$current_post['title'];
$output .= " <span class='post-format-icon minor-meta'></span>";
$output .= " </a>";
$output .= "</{$heading}>";
$current_post['title'] = $output;
}
return $current_post;
}
}
/**
* The avia_audio_content_filter checks if a audio embed is provided and extracts it
* If no slideshow is set, it checks if the content holds a video url, removes it and uses it for the slideshow
* The filter also sets the height of the slideshow to fullsize, and even on overview posts all slides are displayed
*/
if(!function_exists('avia_audio_content_filter'))
{
function avia_audio_content_filter($current_post)
{
preg_match("!\[audio.+?\]\[\/audio\]!", $current_post['content'], $match_audio);
if(!empty($match_audio))
{
$current_post['before_content'] = do_shortcode($match_audio[0]);
$current_post['content'] = str_replace($match_audio[0], "", $current_post['content']);
}
return avia_default_title_filter($current_post);
}
}
/**
* The avia_gallery_slideshow_filter checks if a gallery is set for an entry with post type gallery
* and extracts the gallery, then displays it at the top of the entry
*
* The filter also sets the height of the slideshow to fullsize, and even on overview posts all slides are displayed
*/
if(!function_exists('avia_gallery_slideshow_filter'))
{
function avia_gallery_slideshow_filter($current_post)
{
//search for the first av gallery or gallery shortcode
preg_match("!\[(?:av_)?gallery.+?\]!", $current_post['content'], $match_gallery);
if(!empty($match_gallery))
{
$gallery = $match_gallery[0];
if(strpos($gallery, 'av_') === false) $gallery = str_replace("gallery", 'av_gallery', $gallery);
if(strpos($gallery, 'style') === false) $gallery = str_replace("]", " style='big_thumb' preview_size='gallery']", $gallery);
$current_post['before_content'] = do_shortcode($gallery);
$current_post['content'] = str_replace($match_gallery[0], "", $current_post['content']);
$current_post['slider'] = "";
}
return avia_default_title_filter($current_post);
}
}
/**
* The avia_video_slideshow_filter checks if a video slideshow is set for an entry with post type gallery
* If no slideshow is set, it checks if the content holds a video url, removes it and uses it for the slideshow
* The filter also sets the height of the slideshow to fullsize, and even on overview posts all slides are displayed
*/
if(!function_exists('avia_video_slideshow_filter'))
{
function avia_video_slideshow_filter($current_post)
{
//replace empty url strings with an embed code
$current_post['content'] = preg_replace( '|^\s*(https?://[^\s"]+)\s*$|im', "[embed]$1[/embed]", $current_post['content'] );
//extrect embed and av_video codes from the content. if any were found execute them and prepend them to the post
preg_match("!\[embed.+?\]|\[av_video.+?\]!", $current_post['content'], $match_video);
if(!empty($match_video))
{
global $wp_embed;
$video = $match_video[0];
$current_post['before_content'] = do_shortcode($wp_embed->run_shortcode($video));
$current_post['content'] = str_replace($match_video[0], "", $current_post['content']);
$current_post['slider'] = "";
}
return avia_default_title_filter($current_post);
}
}
/**
* The avia_image_slideshow_filter checks if an image is set for an entry with post type image
* If no image is set, it checks if the content holds an image, removes it and uses it for the slideshow
* The filter also sets the height of the slideshow to fullsize, and even on overview posts all slides are displayed
*/
if(!function_exists('avia_image_slideshow_filter'))
{
function avia_image_slideshow_filter($current_post)
{
$prepend_image = get_the_post_thumbnail(get_the_ID(), 'large');
$image = "";
if(!$prepend_image)
{
$image = avia_regex($current_post['content'],'image');
if(is_array($image))
{
$image = $image[0];
$prepend_image = '<div class="avia-post-format-image"><img src="'.$image.'" alt="" title ="" /></div>';
}
else
{
$image = avia_regex($current_post['content'],'<img />',"");
if(is_array($image))
{
$prepend_image = '<div class="avia-post-format-image">'.$image[0]."</div>";
}
}
}
else
{
$large_image = wp_get_attachment_image_src( get_post_thumbnail_id(get_the_ID()), 'extra_large' );
$prepend_image = '<div class="avia-post-format-image"><a href="'.$large_image[0].'">'.$prepend_image."</a></div>";
}
if(!empty($prepend_image) && is_string($prepend_image))
{
if($image) $current_post['content'] = str_replace($image, "", $current_post['content']);
$current_post['before_content'] = $prepend_image;
$current_post['slider'] = "";
}
if(is_single(get_the_ID()) && get_post_meta( $current_post['the_id'], '_avia_hide_featured_image', true ) ) $current_post['before_content'] = "";
return avia_default_title_filter($current_post);
}
}
/**
* The avia_link_content_filter checks if the beginning of the post is a url. If thats the case this url will be aplied to the title.
* Otherwise the theme will search for the first URL within the content and apply this URL
*/
if(!function_exists('avia_link_content_filter'))
{
function avia_link_content_filter($current_post)
{
//retrieve the link for the post
$link = "";
$newlink = false;
$pattern1 = '$^\b(https?|ftp|file)://[-A-Z0-9+&@#/%?=~_|!:,.;]*[-A-Z0-9+&@#/%=~_|]$i';
$pattern2 = "!^\<a.+?<\/a>!";
$pattern3 = "!\<a.+?<\/a>!";
//if the url is at the begnning of the content extract it
preg_match($pattern1, $current_post['content'] , $link);
if(!empty($link[0]))
{
$link = $link[0];
$markup = avia_markup_helper(array('context' => 'entry_title','echo'=>false));
$current_post['title'] = "<a href='$link' rel='bookmark' title='".__('Link to:','avia_framework')." ".the_title_attribute('echo=0')."' $markup>".get_the_title()."</a>";
$current_post['content'] = preg_replace("!".str_replace("?", "\?", $link)."!", "", $current_post['content'], 1);
}
else
{
preg_match($pattern2, $current_post['content'] , $link);
if(!empty($link[0]))
{
$link = $link[0];
$current_post['title'] = $link;
$current_post['content'] = preg_replace("!".str_replace("?", "\?", $link)."!", "", $current_post['content'], 1);
$newlink = get_url_in_content( $link );
}
else
{
preg_match($pattern3, $current_post['content'] , $link);
if(!empty($link[0]))
{
$current_post['title'] = $link[0];
$newlink = get_url_in_content( $link[0] );
}
}
}
if($link)
{
if(is_array($link)) $link = $link[0];
if($newlink) $link = $newlink;
$heading = is_singular() ? "h1" : "h2";
//$current_post['title'] = "<{$heading} class='post-title entry-title ". avia_offset_class('meta', false). "'>".$current_post['title']."</{$heading}>";
$current_post['title'] = "<{$heading} class='post-title entry-title' ".avia_markup_helper(array('context' => 'entry_title','echo'=>false)).">".$current_post['title']."</{$heading}>";
//needs to be set for masonry
$current_post['url'] = $link;
}
else
{
$current_post = avia_default_title_filter($current_post);
}
return $current_post;
}
}
/**
* Function for posts of type quote: title is wrapped in blockquote tags instead of h1
*/
if(!function_exists('avia_quote_content_filter'))
{
function avia_quote_content_filter($current_post)
{
if(!empty($current_post['title']))
{
//$current_post['title'] = "<div class='". avia_offset_class('meta', false). "'><blockquote class='first-quote'>".$current_post['title']."</blockquote></div>";
$current_post['title'] = "<blockquote class='first-quote' ".avia_markup_helper(array('context' => 'entry_title','echo'=>false)).">".$current_post['title']."</blockquote>";
}
return $current_post;
}
}