583 lines
14 KiB
PHP
583 lines
14 KiB
PHP
<?php namespace Phpcmf\Library;
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/**
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* https://www.besyun.com
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* BESCMS
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* 本文件是框架系统文件，二次开发时不可以修改本文件，可以通过继承类方法来重写此文件
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**/
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class Page {
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/**
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* Base URL
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*
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* The page that we're linking to
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*
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* @var string
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*/
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protected $base_url = '';
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/**
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* Prefix
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*
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* @var string
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*/
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protected $prefix = '';
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/**
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* Suffix
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*
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* @var string
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*/
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protected $suffix = '';
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/**
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* Total number of items
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*
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* @var int
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*/
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protected $total_rows = 0;
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/**
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* Number of links to show
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*
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* Relates to "digit" type links shown before/after
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* the currently viewed page.
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*
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* @var int
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*/
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protected $num_links = 2;
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/**
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* Items per page
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*
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* @var int
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*/
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public $per_page = 10;
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/**
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* Current page
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*
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* @var int
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*/
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public $cur_page = 0;
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/**
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* Use page numbers flag
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*
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* Whether to use actual page numbers instead of an offset
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*
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* @var bool
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*/
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protected $use_page_numbers = true;
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/**
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* First link
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*
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* @var string
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*/
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protected $first_link = '‹ First';
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/**
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* Next link
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*
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* @var string
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*/
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protected $next_link = '>';
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/**
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* Previous link
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*
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* @var string
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*/
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protected $prev_link = '<';
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/**
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* Last link
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*
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* @var string
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*/
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protected $last_link = 'Last ›';
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/**
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* URI Segment
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*
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* @var int
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*/
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protected $uri_segment = 0;
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/**
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* Full tag open
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*
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* @var string
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*/
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protected $full_tag_open = '';
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/**
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* Full tag close
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*
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* @var string
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*/
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protected $full_tag_close = '';
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/**
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* First tag open
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*
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* @var string
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*/
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protected $first_tag_open = '';
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protected $next_anchor_class = '';
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protected $prev_anchor_class = '';
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protected $num_anchor_class = '';
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protected $last_anchor_class = '';
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protected $first_anchor_class = '';
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protected $anchor_class = '';
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protected $compel_page = false;
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protected $compel_prev_page = false;
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protected $compel_next_page = false;
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protected $compel_last_page = false;
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protected $compel_first_page = false;
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/**
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* First tag close
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*
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* @var string
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*/
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protected $first_tag_close = '';
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/**
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* First tag open
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*
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* @var string
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*/
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protected $total_tag_open = '';
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/**
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* First tag close
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*
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* @var string
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*/
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protected $total_tag_close = '';
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protected $total_link = '';
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/**
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* Last tag open
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*
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* @var string
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*/
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protected $last_tag_open = '';
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/**
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* Last tag close
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*
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* @var string
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*/
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protected $last_tag_close = '';
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/**
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* First URL
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*
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* An alternative URL for the first page
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*
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* @var string
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*/
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protected $first_url = '';
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/**
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* Current tag open
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*
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* @var string
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*/
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protected $cur_tag_open = '<strong>';
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/**
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* Current tag close
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*
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* @var string
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*/
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protected $cur_tag_close = '</strong>';
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/**
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* Next tag open
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*
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* @var string
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*/
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protected $next_tag_open = '';
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/**
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* Next tag close
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*
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* @var string
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*/
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protected $next_tag_close = '';
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/**
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* Previous tag open
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*
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* @var string
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*/
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protected $prev_tag_open = '';
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/**
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* Previous tag close
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*
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* @var string
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*/
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protected $prev_tag_close = '';
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/**
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* Number tag open
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*
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* @var string
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*/
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protected $num_tag_open = '';
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/**
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* Number tag close
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*
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* @var string
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*/
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protected $num_tag_close = '';
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/**
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* Page query string flag
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*
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* @var bool
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*/
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protected $page_query_string = FALSE;
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/**
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* Query string segment
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*
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* @var string
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*/
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protected $query_string_segment = 'per_page';
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/**
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* Display pages flag
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*
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* @var bool
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*/
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protected $display_pages = TRUE;
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/**
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* Attributes
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*
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* @var string
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*/
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protected $_attributes = '';
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/**
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* Link types
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*
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* "rel" attribute
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*
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* @see CI_Pagination::_attr_rel()
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* @var array
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*/
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protected $_link_types = array();
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/**
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* Reuse query string flag
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*
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* @var bool
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*/
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protected $reuse_query_string = FALSE;
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/**
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* Use global URL suffix flag
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*
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* @var bool
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*/
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protected $use_global_url_suffix = FALSE;
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/**
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* Data page attribute
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*
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* @var string
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*/
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protected $data_page_attr = 'data-ci-pagination-page';
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// get参数名称
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protected $page_name = 'page';
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// --------------------------------------------------------------------
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/**
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* Initialize Preferences
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*
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* @param array $params Initialization parameters
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* @return CI_Pagination
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*/
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public function initialize(array $params = array())
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{
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foreach ($params as $key => $val)
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{
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if (property_exists($this, $key))
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{
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$this->$key = $val;
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}
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}
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return $this;
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}
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// --------------------------------------------------------------------
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/**
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* Add "rel" attribute
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*
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* @link http://www.w3.org/TR/html5/links.html#linkTypes
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* @param string $type
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* @return string
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*/
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protected function _attr_rel($type)
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{
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if (isset($this->_link_types[$type]))
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{
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unset($this->_link_types[$type]);
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return ' rel="'.$type.'"';
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}
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return '';
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}
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// --------------------------------------------------------------------
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protected function _get_page_id() {
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if (!$this->page_name || is_numeric($this->page_name) || $this->page_name == 'page') {
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return max(1, isset($_GET['page']) ? (int)$_GET['page'] : 1);
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}
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return max(1, isset($_GET[$this->page_name]) ? (int)$_GET[$this->page_name] : 1);
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}
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/**
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* Generate the pagination links
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*
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* @return string
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*/
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public function create_links()
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{
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// If our item count or per-page total is zero there is no need to continue.
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if (!$this->total_rows OR !$this->per_page)
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{
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return '';
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}
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// Calculate the total number of pages
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$num_pages = (int) ceil($this->total_rows / $this->per_page);
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// Is there only one page? Hm... nothing more to do here then.
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if ($num_pages === 1 && !$this->compel_page)
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{
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return '';
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}
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// Check the user defined number of links.
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$this->num_links = (int) $this->num_links;
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// Put together our base and first URLs.
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$this->base_url = trim($this->base_url);
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// Determine the current page number.
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$base_page = ($this->use_page_numbers) ? 1 : 0;
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$this->cur_page = $this->_get_page_id();
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// If something isn't quite right, back to the default base page.
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if ( $this->use_page_numbers && (int) $this->cur_page === 0)
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{
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$this->cur_page = $base_page;
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}
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else
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{
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// Make sure we're using integers for comparisons later.
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$this->cur_page = (int) $this->cur_page;
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}
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// Is the page number beyond the result range?
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// If so, we show the last page.
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if ($this->use_page_numbers)
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{
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if ($this->cur_page > $num_pages)
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{
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$this->cur_page = $num_pages;
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}
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}
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elseif ($this->cur_page > $this->total_rows)
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{
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$this->cur_page = ($num_pages - 1) * $this->per_page;
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}
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$uri_page_number = $this->cur_page;
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// If we're using offset instead of page numbers, convert it
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// to a page number, so we can generate the surrounding number links.
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if ( ! $this->use_page_numbers)
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{
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$this->cur_page = (int) floor(($this->cur_page/$this->per_page) + 1);
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}
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// Calculate the start and end numbers. These determine
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// which number to start and end the digit links with.
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$start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1;
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$end = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages;
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// And here we go...$total_rows
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$output = '';
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if ($this->total_link) {
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$output .= $this->total_tag_open.dr_lang($this->total_link, $this->total_rows).$this->total_tag_close;
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}
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// Render the "First" link.
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if ($this->first_link !== FALSE && ($this->cur_page > ($this->num_links + 1) || $this->compel_first_page))
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{
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// Take the general parameters, and squeeze this pagination-page attr in for JS frameworks.
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$attributes = $this->data_page_attr ? sprintf(' %s="%d"', $this->data_page_attr, 1) : '';
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if ($this->first_anchor_class) {
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$attributes.= ' class="'.$this->first_anchor_class.'"';
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} elseif ($this->anchor_class) {
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$attributes.= ' class="'.$this->anchor_class.'"';
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}
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$output .= $this->first_tag_open.'<a href="'.$this->_get_link_url(1).'"'.$attributes.$this->_attr_rel('start').'>'
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.dr_lang($this->first_link).'</a>'.$this->first_tag_close;
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}
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// Render the "Previous" link.
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if ($this->prev_link !== FALSE && ($this->cur_page !== 1 || $this->compel_prev_page))
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{
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$i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page;
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$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
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if ($this->prev_anchor_class) {
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$attributes.= ' class="'.$this->prev_anchor_class.'"';
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} elseif ($this->anchor_class) {
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$attributes.= ' class="'.$this->anchor_class.'"';
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}
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if ($i === $base_page)
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{
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// First page
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$output .= $this->prev_tag_open.'<a href="'.$this->_get_link_url($i).'"'.$attributes.$this->_attr_rel('prev').'>'
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.dr_lang($this->prev_link).'</a>'.$this->prev_tag_close;
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}
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else
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{
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$output .= $this->prev_tag_open.'<a href="'.$this->_get_link_url($i).'"'.$attributes.$this->_attr_rel('prev').'>'
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.dr_lang($this->prev_link).'</a>'.$this->prev_tag_close;
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}
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}
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// Render the pages
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if ($this->display_pages !== FALSE)
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{
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// Write the digit links
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for ($loop = $start -1; $loop <= $end; $loop++)
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{
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$i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page;
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$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
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if ($this->num_anchor_class) {
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$attributes.= ' class="'.$this->num_anchor_class.'"';
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} elseif ($this->anchor_class) {
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$attributes.= ' class="'.$this->anchor_class.'"';
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}
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if ($i >= $base_page)
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{
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if ($this->cur_page === $loop)
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{
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// Current page
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$output .= $this->cur_tag_open.$loop.$this->cur_tag_close;
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}
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elseif ($i === $base_page)
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{
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// First page
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$output .= $this->num_tag_open.'<a href="'.$this->_get_link_url(1).'"'.$attributes.$this->_attr_rel('start').'>'
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.$loop.'</a>'.$this->num_tag_close;
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}
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else
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{
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$output .= $this->num_tag_open.'<a href="'.$this->_get_link_url($i).'"'.$attributes.$this->_attr_rel('start').'>'
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.$loop.'</a>'.$this->num_tag_close;
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}
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}
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}
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}
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// Render the "next" link
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if ($this->next_link !== FALSE && ($this->cur_page < $num_pages || $this->compel_next_page))
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{
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$i = ($this->use_page_numbers) ? min($num_pages, $this->cur_page + 1) : $this->cur_page * $this->per_page;
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$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
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if ($this->next_anchor_class) {
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$attributes.= ' class="'.$this->next_anchor_class.'"';
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} elseif ($this->anchor_class) {
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$attributes.= ' class="'.$this->anchor_class.'"';
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}
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$output .= $this->next_tag_open.'<a href="'.$this->_get_link_url($i).'"'.$attributes
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.$this->_attr_rel('next').'>'.dr_lang($this->next_link).'</a>'.$this->next_tag_close;
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}
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// Render the "Last" link
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if ($this->last_link !== FALSE && (($this->cur_page + $this->num_links) < $num_pages || $this->compel_last_page))
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{
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$i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page;
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$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
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if ($this->last_anchor_class) {
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$attributes.= ' class="'.$this->last_anchor_class.'"';
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} elseif ($this->anchor_class) {
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$attributes.= ' class="'.$this->anchor_class.'"';
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}
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$output .= $this->last_tag_open.'<a href="'.$this->_get_link_url($i).'"'.$attributes.'>'
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.dr_lang($this->last_link).'</a>'.$this->last_tag_close;
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}
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if (IS_ADMIN) {
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$output .= '<li class="input-page"><div class="input-group">
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<input type="text" id="dr_pagination_input_pageid" value="'.$this->cur_page.'" class="form-control" placeholder="'.dr_lang('页').'">
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<span class="input-group-btn">
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<button onclick="dr_page_go_url()" class="btn" type="button">'.dr_lang('跳转').'</button>
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</span>
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<script>
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function dr_page_go_url() {
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var u = "'.$this->base_url.'";
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var p = $(\'#dr_pagination_input_pageid\').val();
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if (!p || p == \'\') {
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dr_tips(0, \''.dr_lang('输入页码').'\');
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return false;
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}
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window.location.href= u.replace(/\{page\}/i, p);
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}
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</script>
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</div></li>';
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}
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// Kill double slashes. Note: Sometimes we can end up with a double slash
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// in the penultimate link so we'll kill all double slashes.
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$output = preg_replace('#([^:])//+#', '\\1/', $output);
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// Add the wrapper HTML if exists
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return $this->full_tag_open.$output.$this->full_tag_close;
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}
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protected function _get_link_url($page) {
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|
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return $page <=1 && $this->first_url ? $this->first_url : str_replace('{page}', $page, $this->base_url);
|
|
}
|
|
}
|