<?php
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class page{
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var $pagelink="{{page}}.html";
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var $selectpagelink= "'{{link}}_'+this.value+'.html'";
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var $page = null;
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var $maxPage = null;
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var $autoHideInput=false;
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function page($page,$limit,$total,$pagelink="",$num=3,$html=true,$notpl=false){
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$this->maxPage = 0;
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if($total>0)
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$this->maxPage = intval(ceil($total/$limit));
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$this->page = min($this->maxPage , $page);
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$this->total = $total;
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if($pagelink){
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$this->pagelink=$pagelink;
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}
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$this->notpl = $notpl;
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$this->maxShowNum=$num;
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$this->autoHideInput=false;
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$this->setTpl();
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}
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//设置自定义属性
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function extend( $optionArr ){
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if($optionArr['tpl']){
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foreach( $this->tpl as $tk=>$tv ){
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if( array_key_exists( $tk , $optionArr['tpl'] ) )
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$this->tpl[$tk]=$optionArr['tpl'][$tk];
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}
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}
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if($optionArr['numTpl']){
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foreach( $this->numTpl as $tk=>$tv ){
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if( array_key_exists( $tk , $optionArr['numTpl'] ) )
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$this->numTpl[$tk]=$optionArr['numTpl'][$tk];
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}
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}
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}
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function setTpl(){
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global $pageType;
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//自定义部分
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$tpl['prestr']='<a href="[prelink]">上一页</a>';
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$tpl['nextstr']='<a href="[nextlink]">下一页</a>';
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if($pageType!='wap' && $pageType!='wapadmin'){
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$tpl['str']='[prestr][numstr][nextstr][inputstr]';
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//数字部分自定义
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$numTpl['linkstr']='<a href="[link]">[num]</a>';
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$numTpl['curr']='<a href="#" class="selected">[num]</a>';
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$numTpl['shenglue']='<em style="padding:0 10px;">...</em>';
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}else{
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$tpl['str']='[prestr][numselect][nextstr]<em>共[maxPage]页</em>[selectjs]';
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$numTpl['curr']='<a href="#" class="selected">[num]</a>';
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}
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if(!$this->notpl){
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$this->numTpl=$numTpl;
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}
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$this->tpl=$tpl;
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}
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//获取翻页字符串
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function numPage($num=2){
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if($this->maxPage==0)return;
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$prep = max(1,($this->page-1));
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$nextp = min($this->maxPage,($this->page+1));
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$firstlink = str_replace("{{page}}","1",$this->pagelink);
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$lastlink = str_replace("{{page}}",$this->maxPage,$this->pagelink);
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$prelink = str_replace("{{page}}",$prep,$this->pagelink);
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$nextlink = str_replace("{{page}}",$nextp,$this->pagelink);
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$str ="";
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$prestr = str_replace("[prelink]",$prelink, $this->tpl['prestr']);
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if($this->maxPage>1){
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global $pageType;
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if($pageType=='wap' || $pageType=='wapadmin'){
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$numselect = '<select onchange="toPages()" id="pageChange">';
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//下拉框选择
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$startI = 1;
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if($this->maxPage>20){
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if($this->page>=10){
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$maxpage = $this->page+10;
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$startI = $this->page-10;
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}else{
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$maxpage = 20;
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}
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}else{
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$maxpage = $this->maxPage;
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}
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for($i=$startI;$i<=$maxpage;$i++){
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$selected = '';
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$pageSelectLink = str_replace('{{page}}',$i,$this->pagelink);
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if($this->page==$i){
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$selected= 'selected=selected';
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}
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$numselect .='<option value="'.$pageSelectLink.'" '.$selected.'>'.$i.'</option>';
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}
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$numselect.="</select>";
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$selectjs = '<script>
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function toPages(url){
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var obj=document.getElementById("pageChange");
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window.location.href=obj.options[obj.selectedIndex].value;
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}
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</script>';
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}
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$numstr = "";
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$n=$this->maxPage;
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$istart = $this->page-$num;
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$istart = max($istart,1);
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$iend = $istart+$this->maxShowNum;
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$iend = min($iend,$n);
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if(($iend-$istart)<$this->maxShowNum){
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$istart = $iend-$this->maxShowNum;
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$istart = max($istart,1);
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}
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if($istart==2){
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$numstr .=$this->getnum(1,1);
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}
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elseif($istart==3){
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$numstr .=$this->getnum(1,2);
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}
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elseif($istart>3){
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$numstr .=$this->getnum(1,2);
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$numstr .= $this->numTpl['shenglue'];
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}
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$numstr .=$this->getnum($istart,$iend);
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$endi = $this->maxPage-1;
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if($iend<($endi-1)){
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$numstr .= $this->numTpl['shenglue'];
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$numstr .=$this->getnum($endi,$this->maxPage);
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}
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elseif($iend<$endi){
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$numstr .=$this->getnum($endi,$this->maxPage);
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}
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elseif($iend==$endi){
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$numstr .=$this->getnum($this->maxPage,$this->maxPage);
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}
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}
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else{//只有一页
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$numstr = str_replace("[num]",1, $this->numTpl['curr'] );
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}
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$prestr = str_replace("[prelink]",$prelink, $this->tpl['prestr'] );
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$nextstr = str_replace("[nextlink]",$nextlink, $this->tpl['nextstr'] );
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$str = $this->tpl['str'];
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$str =str_replace("[firstlink]",$firstlink,$str);
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$str =str_replace("[lastlink]",$lastlink,$str);
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$str =str_replace("[prestr]",$prestr,$str);
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$str =str_replace("[nextstr]",$nextstr,$str);
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$str =str_replace("[numstr]",$numstr,$str);
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$str =str_replace("[page]",$this->page,$str);
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$str =str_replace("[total]",$this->total,$str);
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$str =str_replace("[maxPage]",$this->maxPage,$str);
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$str =str_replace("[numselect]",$numselect,$str);
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$str =str_replace("[selectjs]",$selectjs,$str);
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//替换跳转js代码
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$inputid=rand(1001,3333);
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$this->jsfunc = "turnPages('".$this->pagelink."','$inputid',".$this->maxPage.");";
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$js='<script>function turnPages(url,num,pages){
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var page=$("#gotoPage"+num).val();
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if(page>pages){
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page=pages;
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}
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url=url.replace("{{page}}",page);
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window.location.href=url;
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}</script>';
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$css='<style>.input-num{width:46px;height:30px;line-height:30px;border:1px solid #ccc;border-radius: 4px;margin-left: 5px;}.diggg .pages_b_no{border:none;}
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.bt-confirm{background:#f60;border:none;color: #FFFFFF; cursor: pointer;height:25px; width: 48px;border-radius:3px; margin-left:3px;}.pages_b_no{padding-left:10px;}</style>';
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$input = '<input type="text" value="" class="input-num" id="gotoPage'.$inputid.'" onkeyup="this.value=this.value.replace(/[^0-9]/g,\'\')" onkeydown="if(event.keyCode==13){return false;}"/>';
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if($this->maxPage>8 && $this->maxPage<12000){
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$inputstr='<em class="pages_b_no">转到第 '.$input.' 页<input class="bt-confirm" type="button" value="确定" onclick="'.$this->jsfunc.'" /></em>'.$js.$css;
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}
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//自动替换掉跳转的input
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if($this->autoHideInput && $this->maxPage<5){
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$str= str_replace("[inputstr]","",$str);
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}
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else{
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$str= str_replace("[inputstr]",$inputstr,$str);
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}
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return $str;
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}
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function getnum($istart,$iend){
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$numstr="";
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for ($i=$istart;$i<=$iend ;$i++ ){
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$link = str_replace("{{page}}",$i,$this->pagelink);
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if($i==$this->page){
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$numstr .= str_replace("[num]",$i, $this->numTpl['curr'] );
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}
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else{
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$linkstr = str_replace("[link]",$link, $this->numTpl['linkstr'] );
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$linkstr = str_replace("[num]",$i, $linkstr );
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$numstr .= $linkstr;
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}
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}
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return $numstr;
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}
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}//end class
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?>
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