[5550] | 1 | <?php |
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| 2 | |
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| 3 | /* ----------------------------------------------------------------------------- |
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| 4 | class name : GPCPagesNavigation |
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| 5 | class version : 2.0.0 |
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| 6 | plugin version : 3.0.0 |
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| 7 | date : 2010-03-30 |
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| 8 | ------------------------------------------------------------------------------ |
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| 9 | author: grum at piwigo.org |
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| 10 | << May the Little SpaceFrog be with you >> |
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| 11 | ------------------------------------------------------------------------------ |
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| 12 | |
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| 13 | :: HISTORY |
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| 14 | |
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| 15 | | release | date | |
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| 16 | | 2.0.0 | 2010/03/30 | * Update class & function names |
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| 17 | | | | |
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| 18 | | | | |
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| 19 | | | | |
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| 20 | | | | |
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| 21 | | | | |
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| 22 | | | | |
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| 23 | |
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| 24 | ------------------------------------------------------------------------------ |
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| 25 | |
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| 26 | this classes provides base functions to manage pages navigation |
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| 27 | |
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| 28 | - constructor GPCPagesNavigation() |
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| 29 | - (public) function setNbItems($nbitems) |
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| 30 | - (public) function getNbItems() |
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| 31 | - (public) function setNbItemsPerPage($nbitems) |
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| 32 | - (public) function getNbItemsPerPage() |
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| 33 | - (public) function getNbPages() |
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| 34 | - (public) function setCurrentPage($page) |
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| 35 | - (public) function getCurrentPage() |
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| 36 | - (public) function setBaseUrl($url) |
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| 37 | - (public) function getBaseUrl() |
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| 38 | - (public) function setOptions($var) |
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| 39 | - (public) function getOptions() |
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| 40 | - (public) function makeNavigation() |
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| 41 | - (private) function calcNbPages() |
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| 42 | ---------------------------------------------------------------------- */ |
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| 43 | class GPCPagesNavigation |
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| 44 | { |
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| 45 | protected $nbitems; |
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| 46 | protected $nbitemsperpages; |
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| 47 | protected $nbpages; |
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| 48 | protected $currentpage; |
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| 49 | protected $baseurl; |
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| 50 | protected $pagevarurl; |
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| 51 | protected $options; |
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| 52 | |
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| 53 | public function __construct() |
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| 54 | { |
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| 55 | $this->nbitems=0; |
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| 56 | $this->nbitemsperpages=0; |
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| 57 | $this->nbpages=0; |
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| 58 | $this->currentpage=0; |
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| 59 | $this->baseurl=''; |
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| 60 | $this->pagevarurl=''; |
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| 61 | $this->options=array( |
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| 62 | 'prev_next' => true, |
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| 63 | 'first_last' => true, |
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| 64 | 'display_all' => true, |
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| 65 | 'number_displayed' => 2, //number of page displayed before and after current page |
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| 66 | 'text_prev' => "<", |
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| 67 | 'text_first' => "<<", |
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| 68 | 'text_next' => ">", |
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| 69 | 'text_last' => ">>", |
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| 70 | ); |
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| 71 | } |
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| 72 | |
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| 73 | public function __destruct() |
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| 74 | { |
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| 75 | unset($this->nbitems); |
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| 76 | unset($this->nbitemsperpages); |
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| 77 | unset($this->nbpages); |
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| 78 | unset($this->currentpage); |
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| 79 | unset($this->baseurl); |
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| 80 | unset($this->pagevarurl); |
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| 81 | unset($this->options); |
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| 82 | } |
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| 83 | |
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| 84 | /* |
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| 85 | define value for total number of items |
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| 86 | */ |
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| 87 | public function setNbItems($nbitems) |
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| 88 | { |
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| 89 | if($nbitems!=$this->nbitems) |
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| 90 | { |
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| 91 | $this->nbitems=$nbitems; |
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| 92 | $this->calcNbPages(); |
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| 93 | } |
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| 94 | return($nbitems); |
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| 95 | } |
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| 96 | |
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| 97 | public function getNbItems() |
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| 98 | { |
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| 99 | return($nbitems); |
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| 100 | } |
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| 101 | |
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| 102 | /* |
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| 103 | define value for number of items displayed per pages |
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| 104 | */ |
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| 105 | public function setNbItemsPerPage($nbitems) |
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| 106 | { |
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| 107 | if(($nbitems!=$this->nbitemsperpages)&&($nbitems>0)) |
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| 108 | { |
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| 109 | $this->nbitemsperpages=$nbitems; |
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| 110 | $this->calcNbPages(); |
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| 111 | } |
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| 112 | return($this->nbitemsperpages); |
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| 113 | } |
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| 114 | |
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| 115 | public function getNbItemsPerPage() |
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| 116 | { |
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| 117 | return($this->nbitemsperpages); |
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| 118 | } |
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| 119 | |
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| 120 | /* |
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| 121 | return numbers of pages |
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| 122 | */ |
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| 123 | public function getNbPages() |
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| 124 | { |
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| 125 | return($this->nbpages); |
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| 126 | } |
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| 127 | |
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| 128 | /* |
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| 129 | define the current page number |
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| 130 | */ |
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| 131 | public function setCurrentPage($page) |
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| 132 | { |
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| 133 | if(($page!=$this->currentpage)&&($page<=$this->nbpages)&&($page>0)) |
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| 134 | { |
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| 135 | $this->currentpage=$page; |
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| 136 | } |
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| 137 | return($this->currentpage); |
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| 138 | } |
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| 139 | |
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| 140 | /* |
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| 141 | returns the current page number |
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| 142 | */ |
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| 143 | public function getCurrentPage() |
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| 144 | { |
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| 145 | return($this->currentpage); |
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| 146 | } |
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| 147 | |
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| 148 | /* |
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| 149 | define the value for url |
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| 150 | ex: "http://mysite.com/admin.php?var1=xxx&var2=xxx" |
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| 151 | */ |
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| 152 | public function setBaseUrl($url) |
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| 153 | { |
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| 154 | if($url!=$this->baseurl) |
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| 155 | { |
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| 156 | $this->baseurl=$url; |
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| 157 | } |
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| 158 | return($this->baseurl); |
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| 159 | } |
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| 160 | |
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| 161 | public function getBaseUrl() |
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| 162 | { |
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| 163 | return($this->baseurl); |
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| 164 | } |
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| 165 | |
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| 166 | /* |
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| 167 | define the value for variables's name |
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| 168 | ex: url = "http://mysite.com/admin.php?var1=xxx&var2=xxx" |
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| 169 | pagevar = "pagenumber" |
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| 170 | url made is "http://mysite.com/admin.php?var1=xxx&var2=xxx&pagenumber=xxx" |
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| 171 | */ |
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| 172 | public function setPageVarUrl($var) |
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| 173 | { |
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| 174 | if($var!=$this->pagevarurl) |
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| 175 | { |
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| 176 | $this->pagevarurl=$var; |
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| 177 | } |
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| 178 | return($this->pagevarurl); |
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| 179 | } |
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| 180 | |
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| 181 | public function getPageVarUrl() |
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| 182 | { |
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| 183 | return($this->pagevarurl); |
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| 184 | } |
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| 185 | |
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| 186 | /* |
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| 187 | define the navigation bar options |
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| 188 | */ |
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| 189 | public function setOptions($var) |
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| 190 | { |
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| 191 | if(is_array($var)) |
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| 192 | { |
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| 193 | foreach($this->options as $key=>$val) |
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| 194 | { |
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| 195 | if(isset($var[$key])) |
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| 196 | { |
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| 197 | $this->options[$key]=$var[$key]; |
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| 198 | } |
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| 199 | } |
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| 200 | } |
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| 201 | return($this->options); |
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| 202 | } |
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| 203 | |
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| 204 | public function getOptions() |
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| 205 | { |
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| 206 | return($this->options); |
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| 207 | } |
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| 208 | |
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| 209 | |
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| 210 | /* |
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| 211 | returns an html formatted string |
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| 212 | */ |
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| 213 | public function makeNavigation($functionname='') |
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| 214 | { |
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| 215 | $text=''; |
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| 216 | if(($this->options['display_all'])||($this->options['number_displayed']>=$this->nbpages)) |
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| 217 | { |
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| 218 | for($i=1;$i<=$this->nbpages;$i++) |
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| 219 | { |
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| 220 | if($i!=$this->currentpage) |
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| 221 | { |
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| 222 | if($functionname=='') |
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| 223 | { |
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| 224 | $text.='<a href="'.$this->baseurl.'&'.$this->pagevarurl.'='.$i.'">'.$i.'</a> '; |
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| 225 | } |
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| 226 | else |
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| 227 | { |
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| 228 | $text.='<a style="cursor:pointer;" onclick="'.$functionname.'('.$i.');">'.$i.'</a> '; |
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| 229 | } |
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| 230 | } |
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| 231 | else |
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| 232 | { |
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| 233 | $text.=$i.' '; |
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| 234 | } |
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| 235 | } |
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| 236 | } |
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| 237 | else |
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| 238 | { |
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| 239 | for($i=$this->currentpage-$this->options['number_displayed'];$i<=$this->currentpage+$this->options['number_displayed'];$i++) |
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| 240 | { |
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| 241 | if(($i>0)&&($i<=$this->nbpages)) |
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| 242 | { |
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| 243 | if($i!=$this->currentpage) |
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| 244 | { |
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| 245 | if($functionname=='') |
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| 246 | { |
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| 247 | $text.='<a href="'.$this->baseurl.'&'.$this->pagevarurl.'='.$i.'">'.$i.'</a> '; |
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| 248 | } |
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| 249 | else |
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| 250 | { |
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| 251 | $text.='<a style="cursor:pointer;" onclick="'.$functionname.'('.$i.');">'.$i.'</a> '; |
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| 252 | } |
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| 253 | } |
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| 254 | else |
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| 255 | { |
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| 256 | $text.=$i.' '; |
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| 257 | } |
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| 258 | } |
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| 259 | } |
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| 260 | if($this->currentpage-$this->options['number_displayed']>0) |
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| 261 | { |
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| 262 | $text=' ... '.$text; |
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| 263 | } |
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| 264 | if($this->currentpage+$this->options['number_displayed']<$this->nbpages) |
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| 265 | { |
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| 266 | $text.=' ... '; |
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| 267 | } |
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| 268 | } |
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| 269 | |
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| 270 | if($this->options['prev_next']) |
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| 271 | { |
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| 272 | $prevp=''; |
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| 273 | $nextp=''; |
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| 274 | if($this->currentpage>1) |
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| 275 | { |
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| 276 | if($functionname=='') |
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| 277 | { |
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| 278 | $prevp='<a href="'.$this->baseurl.'&'.$this->pagevarurl.'='.($this->currentpage-1).'"> '.$this->options['text_prev'].' </a>'; |
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| 279 | } |
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| 280 | else |
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| 281 | { |
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| 282 | $prevp='<a style="cursor:pointer;" onclick="'.$functionname.'('.($this->currentpage-1).');"> '.$this->options['text_prev'].' </a>'; |
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| 283 | } |
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| 284 | } |
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| 285 | if($this->currentpage<$this->nbpages) |
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| 286 | { |
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| 287 | if($functionname=='') |
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| 288 | { |
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| 289 | $nextp='<a href="'.$this->baseurl.'&'.$this->pagevarurl.'='.($this->currentpage+1).'"> '.$this->options['text_next'].' </a>'; |
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| 290 | } |
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| 291 | else |
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| 292 | { |
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| 293 | $nextp='<a style="cursor:pointer;" onclick="'.$functionname.'('.($this->currentpage+1).');"> '.$this->options['text_next'].' </a>'; |
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| 294 | } |
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| 295 | } |
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| 296 | |
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| 297 | $text=$prevp.$text.$nextp; |
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| 298 | } |
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| 299 | |
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| 300 | if($this->options['first_last']) |
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| 301 | { |
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| 302 | $firstp=''; |
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| 303 | $lastp=''; |
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| 304 | if($this->currentpage>1) |
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| 305 | { |
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| 306 | if($functionname=='') |
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| 307 | { |
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| 308 | $firstp='<a href="'.$this->baseurl.'&'.$this->pagevarurl.'=1"> '.$this->options['text_first'].' </a>'; |
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| 309 | } |
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| 310 | else |
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| 311 | { |
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| 312 | $firstp='<a style="cursor:pointer;" onclick="'.$functionname.'(1);"> '.$this->options['text_first'].' </a>'; |
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| 313 | } |
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| 314 | } |
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| 315 | if($this->currentpage<$this->nbpages) |
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| 316 | { |
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| 317 | if($functionname=='') |
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| 318 | { |
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| 319 | $lastp='<a href="'.$this->baseurl.'&'.$this->pagevarurl.'='.$this->nbpages.'"> '.$this->options['text_last'].' </a>'; |
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| 320 | } |
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| 321 | else |
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| 322 | { |
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| 323 | $lastp='<a style="cursor:pointer;" onclick="'.$functionname.'('.$this->nbpages.');"> '.$this->options['text_last'].' </a>'; |
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| 324 | } |
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| 325 | } |
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| 326 | |
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| 327 | $text=$firstp.$text.$lastp; |
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| 328 | } |
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| 329 | |
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| 330 | return($text); |
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| 331 | } |
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| 332 | |
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| 333 | |
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| 334 | /* |
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| 335 | calculate the number of pages... |
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| 336 | */ |
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| 337 | public function calcNbPages() |
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| 338 | { |
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| 339 | if($this->nbitemsperpages>0) |
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| 340 | { |
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| 341 | $this->nbpages=ceil($this->nbitems/$this->nbitemsperpages); |
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| 342 | } |
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| 343 | } |
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| 344 | |
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| 345 | } //class |
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| 346 | |
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| 347 | ?> |
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