mPDF自动打印问题 [英] mPDF auto print issue

问题描述

我正在使用一个php类mpdf，它很好地生成了PDF.我正在尝试使文件在呈现时自动打印(即打开打印对话框).我使用以下代码扩展了核心功能，以将javascript添加到pdf中.会渲染pdf，但不会自动打印.任何帮助将是巨大的.谢谢！

I'm using a php class, mpdf, which generates PDF's very nicely. I'm trying to get the file to automatically print (i.e., open the print dialog) when rendered. I've extended the core functioning with the code below to add javascript to the pdf. The pdf is rendered but without auto-printing. Any help would be great. Thanks!

    require('mpdf.php');
    class PDF_JavaScript extends mPDF {
        var $javascript;
        var $n_js;

        function IncludeJS($script) {
            $this->javascript=$script;
        }
        function _putjavascript() {
            $this->_newobj();
            $this->n_js=$this->n;
            $this->_out('<<');
            $this->_out('/Names [(EmbeddedJS) '.($this->n+1).' 0 R]');
            $this->_out('>>');
            $this->_out('endobj');
            $this->_newobj();
            $this->_out('<<');
            $this->_out('/S /JavaScript');
            $this->_out('/JS '.$this->_textstring($this->javascript));
            $this->_out('>>');
            $this->_out('endobj');
        }
        function _putresources() {
            parent::_putresources();
            if (!empty($this->javascript)) {
                $this->_putjavascript();
            }
        }

        function _putcatalog() {
            parent::_putcatalog();
            if (!empty($this->javascript)) {
                $this->_out('/Names <</JavaScript '.($this->n_js).' 0 R>>');
            }
        }
    }
    class PDF_AutoPrint extends PDF_Javascript { 
        function AutoPrint($dialog=false) { //Embed some JavaScript to show the print dialog or start printing immediately
        $param=($dialog ? 'true' : 'false');
        $script="print($param);";
        $this->IncludeJS($script); } }


$mpdf = new PDF_AutoPrint('', 'Letter', 0, '', 12.7, 12.7, 14, 12.7, 8, 8);

$stylesheet = file_get_contents('eabill.css');
$mpdf->WriteHTML($stylesheet,1);
$mpdf->WriteHTML($message,2);
$mpdf->AutoPrint(true);

$mpdf->Output();

推荐答案

这对我来说可以打印生成的PDF文件，我用它来打印没有菜单，横幅等内容的网站页面内容，而只是具有自己的页眉和页脚的内容

This works for me to print generated PDF file, i used it to print website page contents without menus, banners etc just content with own header and footer

$header = 'Document header';
$html   = 'Your document content goes here';
$footer = 'Print date: ' . date('d.m.Y H:i:s') . '<br />Page {PAGENO} of {nb}';

$mpdf = new mPDF('utf-8', 'A4', 0, '', 12, 12, 25, 15, 12, 12);
$mpdf->SetHTMLHeader($header);
$mpdf->SetHTMLFooter($footer);
$mpdf->SetJS('this.print();');
$mpdf->WriteHTML($html);
$mpdf->Output();

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