105 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			105 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * A collection of common functions for theme parts
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 */
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class BaseThemelet {
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	/**
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	 * Generic error message display
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	 */
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	public function display_error(/*int*/ $code, /*string*/ $title, /*string*/ $message) {
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		global $page;
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		$page->add_http_header("HTTP/1.0 $code $title");
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		$page->set_title($title);
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		$page->set_heading($title);
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		$page->add_block(new NavBlock());
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		$page->add_block(new Block("Error", $message));
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	}
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	/**
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	 * A specific, common error message
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	 */
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	public function display_permission_denied() {
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		$this->display_error(403, "Permission Denied", "You do not have permission to access this page");
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	}
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	/**
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	 * Generic thumbnail code; returns HTML rather than adding
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	 * a block since thumbs tend to go inside blocks...
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	 */
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	public function build_thumb_html(Image $image, $query=null) {
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		global $config;
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		$i_id = (int) $image->id;
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		$h_view_link = make_link('post/view/'.$i_id, $query);
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		$h_thumb_link = $image->get_thumb_link();
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		$h_tip = html_escape($image->get_tooltip());
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		$h_tags = strtolower($image->get_tag_list());
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		$base = get_base_href();
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		// If file is flash or svg then sets thumbnail to max size.
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		if($image->ext === 'swf' || $image->ext === 'svg'){
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			$tsize = get_thumbnail_size($config->get_int('thumb_width'), $config->get_int('thumb_height'));
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		}
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		else{
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			$tsize = get_thumbnail_size($image->width, $image->height);
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		}
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		return '<a href="'.$h_view_link.'" class="thumb" data-tags="'.$h_tags.'">'.
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		       '<img id="thumb_'.$i_id.'" title="'.$h_tip.'" alt="'.$h_tip.'" height="'.$tsize[1].'" width="'.$tsize[0].'" class="lazy" data-original="'.$h_thumb_link.'" src="'.$base.'/lib/static/grey.gif">'.
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		       '<noscript><img id="thumb_'.$i_id.'" title="'.$h_tip.'" alt="'.$h_tip.'" height="'.$tsize[1].'" width="'.$tsize[0].'" src="'.$h_thumb_link.'"></noscript>'.
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			   "</a>\n";
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	}
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	/**
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	 * Add a generic paginator
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	 */
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	public function display_paginator(Page $page, $base, $query, $page_number, $total_pages) {
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		if($total_pages == 0) $total_pages = 1;
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		$body = $this->build_paginator($page_number, $total_pages, $base, $query);
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		$page->add_block(new Block(null, $body, "main", 90, "paginator"));
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	}
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	private function gen_page_link($base_url, $query, $page, $name) {
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		$link = make_link($base_url.'/'.$page, $query);
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	    return '<a href="'.$link.'">'.$name.'</a>';
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	}
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	private function gen_page_link_block($base_url, $query, $page, $current_page, $name) {
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		$paginator = "";
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	    if($page == $current_page) $paginator .= "<b>";
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	    $paginator .= $this->gen_page_link($base_url, $query, $page, $name);
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	    if($page == $current_page) $paginator .= "</b>";
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	    return $paginator;
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	}
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	private function build_paginator($current_page, $total_pages, $base_url, $query) {
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		$next = $current_page + 1;
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		$prev = $current_page - 1;
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		$rand = rand(1, $total_pages);
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		$at_start = ($current_page <= 1 || $total_pages <= 1);
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		$at_end = ($current_page >= $total_pages);
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		$first_html  = $at_start ? "First" : $this->gen_page_link($base_url, $query, 1,            "First");
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		$prev_html   = $at_start ? "Prev"  : $this->gen_page_link($base_url, $query, $prev,        "Prev");
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		$random_html =                       $this->gen_page_link($base_url, $query, $rand,        "Random");
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		$next_html   = $at_end   ? "Next"  : $this->gen_page_link($base_url, $query, $next,        "Next");
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		$last_html   = $at_end   ? "Last"  : $this->gen_page_link($base_url, $query, $total_pages, "Last");
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		$start = $current_page-5 > 1 ? $current_page-5 : 1;
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		$end = $start+10 < $total_pages ? $start+10 : $total_pages;
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		$pages = array();
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		foreach(range($start, $end) as $i) {
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			$pages[] = $this->gen_page_link_block($base_url, $query, $i, $current_page, $i);
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		}
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		$pages_html = implode(" | ", $pages);
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		return $first_html.' | '.$prev_html.' | '.$random_html.' | '.$next_html.' | '.$last_html
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				.'<br><< '.$pages_html.' >>';
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	}
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}
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?>
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