zzwy2/extend/page/DxtcPageA.php

<?php
namespace page;


use think\Paginator;

/**
 * 自定义分页驱动
 *
 * 通过css控制显示效果
 *
 * Class DxtcPageA
 * @package paginate
 */
class DxtcPageA extends Paginator
{
    protected $linkStr;

    /**
     * 上一页按钮
     *
     * @param string $tpl
     * @return string
     */
    protected function getPreviousButton(string $tpl = "上一页"): string
    {

        if ($this->currentPage() <= 1) {
            return ('<a href="javascript:;">'.$tpl.'</a>');
        }

        $url = $this->url(
            $this->currentPage() - 1
        );

//        return  ($this->getPageLinkWrapper($url, "上一页" ,"") .$this->getPageLinkWrapper($url, $text ,"prev"));
        return ($this->getPageLinkWrapper($url, $tpl, "prev"));
    }

    /**
     * 下一页按钮
     * @param  $tpl
     * @return string
     */
    protected function getNextButton($tpl = '下一页'): string
    {

        if (!$this->hasMore) {
            return ('<a href="javascript:;">'.$tpl.'</a>');
        }

        $url = $this->url($this->currentPage() + 1);

        return ($this->getPageLinkWrapper($url, $tpl, 'next'));
    }

    /**
     * 首页按钮
     * @return string
     */
    private function getFirstButton()
    {
        return '';
        if ($this->lastPage > 1) {
            $url = $this->url(1);
            return $this->getPageLinkWrapper($url, '首页', "first");
        } else {
            return  '';
        }
    }

    /**
     * 最后一页按钮
     * @return string
     */
    private function getLastButton()
    {
        return '';
        if ($this->lastPage > 1) {
            $url = $this->url($this->lastPage);
            return $this->getPageLinkWrapper($url, '末页', "last");
        } else {
            return  '';
        }
    }

    /**
     * 页码按钮
     * @return string
     */
    protected function getLinks(): string
    {
        if ($this->simple) {
            return '';
        }

        $block = [
            'first' => null,
            'slider' => null,
            'last' => null,
        ];

        $side = 3;
        $window = $side * 1;

        if ($this->lastPage < $window + 3) {
            $block['first'] = $this->getUrlRange(1, $this->lastPage);
        } elseif ($this->currentPage <= $window) {
            $block['first'] = $this->getUrlRange(1, $window);
            $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), $this->lastPage);
        } else {
            $block['first'] = $this->getUrlRange(1, 2);
            $block['slider'] = $this->getUrlRange($this->currentPage, $this->currentPage);
            $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($linkStr = '', $pageBox='')
    {
        $this->linkStr = $linkStr;
        if ($this->hasPages()) {
            $pageDiv = !empty($pageBox) ? '<div '.$pageBox.'><div class="page-list">' : '<div class="page-list">';
            if ($this->simple) {
                return sprintf(
                    $pageDiv.'%s %s</div></div>',
                    $this->getPreviousButton(),
                    $this->getNextButton()
                );
            } else {
                return sprintf(
                    $pageDiv.'%s %s %s %s %s</div></div>',
                    $this->getFirstButton(),
                    $this->getPreviousButton(),
                    $this->getLinks(),
                    $this->getNextButton(),
                    $this->getLastButton()
                );
            }
        }
    }

    /**
     * 生成一个可点击的按钮
     *
     * @param string $url
     * @param string $page
     * @return string
     */
    protected function getAvailablePageWrapper(string $url, string $page, $class = ""): string
    {
        //return '<li class="li" ><a href="' . htmlentities($url) . $this->linkStr.'" class="'.$class.'">' . $page . '</a></li>';
        return '<a href="' . htmlentities($url) . $this->linkStr . '" class="' . $class . '">' . $page . '</a>';
    }

    /**
     * 生成一个禁用的按钮
     *
     * @param string $text
     * @return string
     */
    protected function getDisabledTextWrapper(string $text, $class = ""): string
    {
        //return '<li class="li disabled"  ><a class="'.$class.'">' . $text . '</a></li> ';
        return '<a class="' . $class . ' disabled">' . $text . '</a>';
    }

    /**
     * 生成一个激活的按钮
     *
     * @param string $text
     * @return string
     */
    protected function getActivePageWrapper(string $text, $class = ""): string
    {
        //return '<li class="li"><a class="'.$class.'">' . $text . '</a></li>';
        return '<a class="' . $class . '">' . $text . '</a>';
    }

    /**
     * 生成省略号按钮
     *
     * @return string
     */
    protected function getDots(): string
    {
        return $this->getDisabledTextWrapper('...');
    }

    /**
     * 批量生成页码按钮.
     *
     * @param array $urls
     * @return string
     */
    protected function getUrlLinks(array $urls): string
    {
        $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 string $page
     * @return string
     */
    protected function getPageLinkWrapper(string $url, string $page, $class = ""): string
    {
        if ($this->currentPage() == $page) {
            return $this->getActivePageWrapper($page, 'active cur');
        }

        return $this->getAvailablePageWrapper($url, $page, $class);
    }
}