我正在使用一个 php 类 mpdf,它可以很好地生成 PDF。我试图让文件在渲染时自动打印(即打开打印对话框)。我已经使用下面的代码扩展了核心功能,将 javascript 添加到 pdf 中。pdf 被渲染但没有自动打印。任何帮助都会很棒。谢谢!
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();