?php
/**
* Created by alic(AlicFeng) on 17-6-15 下午9:17 from PhpStorm.
* Email is alic@samego.com
*/
namespace think\paginator\driver;
use think\Paginator;
class Semantic extends Paginator
{
private static $previousButtonHtml = 'i class="icon left arrow">/i>';
private static $nextButtonHtml = 'i class="icon right arrow">/i>';
/**
* 上一頁(yè)按鈕
* @return string
*/
protected function getPreviousButton() {
if ($this->currentPage() = 1) {
return $this->getDisabledTextWrapper(Semantic::$previousButtonHtml);
}
$url = $this->url(
$this->currentPage() - 1
);
return $this->getPageLinkWrapper($url, Semantic::$previousButtonHtml);
}
/**
* 下一頁(yè)按鈕
* @return string
*/
protected function getNextButton() {
if (!$this->hasMore) {
return $this->getDisabledTextWrapper(Semantic::$nextButtonHtml);
}
$url = $this->url($this->currentPage() + 1);
return $this->getPageLinkWrapper($url, Semantic::$nextButtonHtml);
}
/**
* 頁(yè)碼按鈕
* @return string
*/
protected function getLinks() {
$block = [
'first' => null,
'slider' => null,
'last' => null
];
$side = 3;
$window = $side * 2;
if ($this->lastPage $window + 6) {
$block['first'] = $this->getUrlRange(1, $this->lastPage);
} elseif ($this->currentPage = $window) {
$block['first'] = $this->getUrlRange(1, $window + 2);
$block['last'] = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
} elseif ($this->currentPage > ($this->lastPage - $window)) {
$block['first'] = $this->getUrlRange(1, 2);
$block['last'] = $this->getUrlRange($this->lastPage - ($window + 2), $this->lastPage);
} else {
$block['first'] = $this->getUrlRange(1, 2);
$block['slider'] = $this->getUrlRange($this->currentPage - $side, $this->currentPage + $side);
$block['last'] = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
}
$html = '';
if (is_array($block['first'])) {
$html .= $this->getUrlLinks($block['first']);
}
if (is_array($block['slider'])) {
$html .= $this->getDots();
$html .= $this->getUrlLinks($block['slider']);
}
if (is_array($block['last'])) {
$html .= $this->getDots();
$html .= $this->getUrlLinks($block['last']);
}
return $html;
}
/**
* 渲染分頁(yè)html
* @return mixed
*/
public function render() {
if ($this->hasPages()) {
if ($this->simple){
return sprintf(
'div style="text-align: center">div class="ui pagination menu">%s %s/div>/div>',
$this->getPreviousButton(),
$this->getNextButton()
);
}else{
return sprintf(
'div style="text-align: center">div class="ui pagination menu">%s %s %s/div>/div>',
$this->getPreviousButton(),
$this->getLinks(),
$this->getNextButton()
);
}
}
return null;
}
/**
* 生成一個(gè)可點(diǎn)擊的按鈕
*
* @param string $url
* @param int $page
* @return string
*/
protected function getAvailablePageWrapper($url, $page) {
return 'a href="' . htmlentities($url) . '" rel="external nofollow" class="item">' . $page . '/a>';
}
/**
* 生成一個(gè)禁用的按鈕
*
* @param string $text
* @return string
*/
protected function getDisabledTextWrapper($text) {
return 'a class="disabled item">' . $text . '/a>';
}
/**
* 生成一個(gè)激活的按鈕
*
* @param string $text
* @return string
*/
protected function getActivePageWrapper($text) {
return 'a class="active item">' . $text . '/a>';
}
/**
* 生成省略號(hào)按鈕
*
* @return string
*/
protected function getDots() {
return $this->getDisabledTextWrapper('...');
}
/**
* 批量生成頁(yè)碼按鈕.
*
* @param array $urls
* @return string
*/
protected function getUrlLinks(array $urls) {
$html = '';
foreach ($urls as $page => $url) {
$html .= $this->getPageLinkWrapper($url, $page);
}
return $html;
}
/**
* 生成普通頁(yè)碼按鈕
*
* @param string $url
* @param int $page
* @return string
*/
protected function getPageLinkWrapper($url, $page) {
if ($page == $this->currentPage()) {
return $this->getActivePageWrapper($page);
}
return $this->getAvailablePageWrapper($url, $page);
}
}
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