Rename all common/framework source files to be case-sensitive

common/framework/Pagination.php

@@ -0,0 +1,153 @@
+<?php
+
+namespace Rhymix\Framework;
+
+/**
+ * The pagination class.
+ */
+class Pagination
+{
+	/**
+	 * Count style constants.
+	 */
+	const COUNT_STYLE_NORMAL = 1;
+	const COUNT_STYLE_CONTINUOUS = 2;
+	
+	/**
+	 * Calculate the number of pages.
+	 * 
+	 * @param int $total_items
+	 * @param int $items_per_page
+	 * @param int $minimum (optional)
+	 * @return int
+	 */
+	public static function countPages($total_items, $items_per_page, $minimum = 1)
+	{
+		if (!$items_per_page)
+		{
+			return (int)$minimum;
+		}
+		else
+		{
+			return (int)max($minimum, ceil($total_items / $items_per_page));
+		}
+	}
+	
+	/**
+	 * Create HTML for pagination.
+	 * 
+	 * @param string $base_url ($PAGE will be replaced with the page number)
+	 * @param int $current_page
+	 * @param int $total_pages
+	 * @param int $count (optional)
+	 */
+	public static function createLinks($base_url, $total_pages, $current_page, $count = 10, $count_style = self::COUNT_STYLE_NORMAL)
+	{
+		// Only integers are allowed here.
+		$current_page = (int)$current_page;
+		$total_pages = (int)$total_pages;
+		$count = (int)$count;
+		
+		// Determine the range of pages to show.
+		if ($count_style === self::COUNT_STYLE_NORMAL)
+		{
+			$last_shown = ceil($current_page / $count) * $count;
+			$first_shown = max(1, $last_shown - $count + 1);
+			if ($last_shown > $total_pages)
+			{
+				$last_shown = $total_pages;
+			}
+		}
+		else
+		{
+			$first_shown = $current_page - floor(($count - 1) / 2);
+			if ($first_shown < 1)
+			{
+				$first_shown = 1;
+			}
+			$last_shown = $first_shown + $count - 1;
+			if ($last_shown > $total_pages)
+			{
+				$last_shown = $total_pages;
+				$first_shown = max(1, $last_shown - $count + 1);
+			}
+		}
+		
+		// Open the <div> tag.
+		$return = array('<div class="pagination">');
+		
+		// Compose the link to the first page.
+		if ($first_shown > 1)
+		{
+			if (strpos($base_url, '$PAGE') !== false)
+			{
+				$target_url = str_replace('$PAGE', 1, $base_url);
+			}
+			else
+			{
+				$target_url = $base_url . 1;
+			}
+			
+			$return[] = self::_composeLink($target_url, '<span class="arrow">&laquo;</span> <span class="page_number first_page">1</span>');
+			$return[] = '<span class="ellipsis">...</span>';
+		}
+		
+		// Compose links for each page.
+		for ($page = $first_shown; $page <= $last_shown; $page++)
+		{
+			if ($page == $current_page)
+			{
+				$opening_span = '<span class="page_number current_page">';
+			}
+			else
+			{
+				$opening_span = '<span class="page_number">';
+			}
+			
+			if (strpos($base_url, '$PAGE') !== false)
+			{
+				$target_url = str_replace('$PAGE', $page, $base_url);
+			}
+			else
+			{
+				$target_url = $base_url . $page;
+			}
+			
+			$return[] = self::_composeLink($target_url, $opening_span . $page . '</span>');
+		}
+		
+		// Compose the link to the last page.
+		if ($last_shown < $total_pages)
+		{
+			if (strpos($base_url, '$PAGE') !== false)
+			{
+				$target_url = str_replace('$PAGE', $total_pages, $base_url);
+			}
+			else
+			{
+				$target_url = $base_url . $total_pages;
+			}
+			
+			$return[] = '<span class="ellipsis">...</span>';
+			$return[] = self::_composeLink($target_url, '<span class="page_number last_page">' . $total_pages . '</span> <span class="arrow">&raquo;</span>');
+		}
+		
+		// Close the <div> tag.
+		$return[] = '</div>';
+		
+		// Return the completed HTML.
+		return implode(' ', $return);
+	}
+	
+	/**
+	 * Link creation subroutine.
+	 * 
+	 * @param string $target_url
+	 * @param string $content
+	 * @return string
+	 */
+	protected static function _composeLink($target_url, $content)
+	{
+		return '<a href="' . escape($target_url) . '">' . $content . '</a>';
+	}
+}