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- <?php
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: zhangyajun <448901948@qq.com>
- // +----------------------------------------------------------------------
-
- namespace think\paginator\driver;
-
- use think\Paginator;
-
- class Bootstrap extends Paginator
- {
-
- /**
- * 上一页按钮
- * @param string $text
- * @return string
- */
- protected function getPreviousButton($text = "«")
- {
-
- if ($this->currentPage() <= 1) {
- return $this->getDisabledTextWrapper($text);
- }
-
- $url = $this->url(
- $this->currentPage() - 1
- );
-
- return $this->getPageLinkWrapper($url, $text);
- }
-
- /**
- * 下一页按钮
- * @param string $text
- * @return string
- */
- protected function getNextButton($text = '»')
- {
- if (!$this->hasMore) {
- return $this->getDisabledTextWrapper($text);
- }
-
- $url = $this->url($this->currentPage() + 1);
-
- return $this->getPageLinkWrapper($url, $text);
- }
-
- /**
- * 页码按钮
- * @return string
- */
- protected function getLinks()
- {
- if ($this->simple)
- return '';
-
- $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 $html;
- }
-
- /**
- * 渲染分页html
- * @return mixed
- */
- public function render()
- {
- if ($this->hasPages()) {
- if ($this->simple) {
- return sprintf(
- '<ul class="pager">%s %s</ul>',
- $this->getPreviousButton(),
- $this->getNextButton()
- );
- } else {
- return sprintf(
- '<ul class="pagination">%s %s %s</ul>',
- $this->getPreviousButton(),
- $this->getLinks(),
- $this->getNextButton()
- );
- }
- }
- }
-
- /**
- * 生成一个可点击的按钮
- *
- * @param string $url
- * @param int $page
- * @return string
- */
- protected function getAvailablePageWrapper($url, $page)
- {
- return '<li><a href="' . htmlentities($url) . '">' . $page . '</a></li>';
- }
-
- /**
- * 生成一个禁用的按钮
- *
- * @param string $text
- * @return string
- */
- protected function getDisabledTextWrapper($text)
- {
- return '<li class="disabled"><span>' . $text . '</span></li>';
- }
-
- /**
- * 生成一个激活的按钮
- *
- * @param string $text
- * @return string
- */
- protected function getActivePageWrapper($text)
- {
- return '<li class="active"><span>' . $text . '</span></li>';
- }
-
- /**
- * 生成省略号按钮
- *
- * @return string
- */
- protected function getDots()
- {
- return $this->getDisabledTextWrapper('...');
- }
-
- /**
- * 批量生成页码按钮.
- *
- * @param array $urls
- * @return string
- */
- protected function getUrlLinks(array $urls)
- {
- $html = '';
-
- foreach ($urls as $page => $url) {
- $html .= $this->getPageLinkWrapper($url, $page);
- }
-
- return $html;
- }
-
- /**
- * 生成普通页码按钮
- *
- * @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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