HtmlPagination.php

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<?php
namespace Ajax\bootstrap\html;

use Ajax\bootstrap\html\base\HtmlBsDoubleElement;
use Ajax\bootstrap\html\base\HtmlNavElement;
use Ajax\bootstrap\html\base\CssRef;
use Ajax\common\html\BaseHtml;
use Ajax\JsUtils;
use Ajax\service\JString;

class HtmlPagination extends HtmlNavElement {

    protected $from;

    protected $to;


    protected $countVisible;

    protected $active;

    protected $urlMask;

    public function __construct($identifier,$from=1,$to=1,$active=NULL,$countVisible=NULL){
        parent::__construct($identifier,"ul");
        $this->setProperty("class", "pagination");
        $this->active=$active;
        $this->from=$from;
        $this->to=$to;
        $this->urlMask="%page%";
        if(!isset($countVisible))
            $this->countVisible=$to-$from+1;
        else
            $this->countVisible=$countVisible;
        $this->createContent();
    }

    private function createElement($num,$content,$disabled=false,$current=false){
        $count=sizeof($this->content)+1;
        $elem=new HtmlBsDoubleElement("li-".$this->identifier."-".$count,"li");
        if($disabled){
            $elem->setProperty("class", "disabled");
        }
        if($current){
            $content.="<span class='sr-only'>(current)</span>";
            $elem->setProperty("class", "active");
        }
        if(!$disabled){
            $url=$this->getUrl($num);
            $href=new HtmlLink("a-".$this->identifier."-".$count,$url,$content);
            $href->setProperty($this->attr, $url);
            $elem->setContent($href);
        }else{
            $elem->setContent($content);
        }
        $this->content[]=$elem;
        return $this;
    }

    protected function createContent(){
        $this->content=array();
        $this->createElement($this->active-1,"<span aria-hidden='true'>&laquo;</span>",$this->active===1);
        $start=$this->getStart();
        $end=min($start+$this->countVisible-1,$this->to);
        for($index=$start;$index<=$end;$index++){
            $this->createElement($index,$index,false,$index===$this->active);
        }
        $this->createElement($this->active+1,"<span aria-hidden='true'>&raquo;</span>",$this->active===$this->to);
    }

    protected function half(){
        return (int)($this->countVisible/2);
    }

    protected function getStart(){
        $result=1;
        if($this->countVisible!==$this->to-$this->from+1){
            $result=max($this->active-$this->half(),$result);
        }
        return $result;
    }

    public function _addEvent($event, $jsCode) {
        foreach ($this->content as $li){
            $content=$li->getContent();
            if($content instanceof BaseHtml)
                $content->_addEvent($event,$jsCode);
        }
    }
    public function fromDispatcher(JsUtils $js,$dispatcher,$startIndex=0){
        $items=$js->fromDispatcher($dispatcher);
        $url=implode("/", $items);
        if($this->urlMask==="%page%"){
            $this->urlMask=preg_replace("/[0-9]/", "%page%", $url);
        }
        for($index=$this->from;$index<=$this->to;$index++){
            if($this->getUrl($index)==$url){
                $this->setActive($index);
                break;
            }
        }
        return $this;
    }

    public function getUrl($index){
        return str_ireplace("%page%", $index, $this->urlMask);
    }

    public function setSize($size) {
        if (is_int($size)) {
            return $this->addToPropertyUnique("class", CssRef::sizes("pagination")[$size], CssRef::sizes("pagination"));
        }
        if(!JString::startsWith($size, "pagination-") && $size!=="")
            $size="pagination-".$size;
        return $this->addToPropertyCtrl("class", $size, CssRef::sizes("pagination"));
    }

    public function getFrom() {
        return $this->from;
    }
    public function setFrom($from) {
        $this->from = $from;
        $this->createContent();
        return $this;
    }
    public function getTo() {
        return $this->to;
    }
    public function setTo($to) {
        $this->to = $to;
        $this->createContent();
        return $this;
    }
    public function getActive() {
        return $this->active;
    }
    public function setActive($active) {
        $this->active = $active;
        $this->createContent();
        return $this;
    }
    public function getUrlMask() {
        return $this->urlMask;
    }
    public function setUrlMask($urlMask) {
        $this->urlMask = $urlMask;
        $this->createContent();
        return $this;
    }
    public function getCountVisible() {
        return $this->countVisible;
    }
    public function setCountVisible($countVisible) {
        $this->countVisible = $countVisible;
        $this->createContent();
        return $this;
    }


}