github.com/mweagle/Sparta@v1.15.0/docs_source/static/presentations/reveal.js-3.9.2/plugin/print-pdf/print-pdf.js (about)

     1  /**
     2   * phantomjs script for printing presentations to PDF.
     3   *
     4   * Example:
     5   * phantomjs print-pdf.js "http://revealjs.com?print-pdf" reveal-demo.pdf
     6   *
     7   * @author Manuel Bieh (https://github.com/manuelbieh)
     8   * @author Hakim El Hattab (https://github.com/hakimel)
     9   * @author Manuel Riezebosch (https://github.com/riezebosch)
    10   */
    11  
    12  // html2pdf.js
    13  var system = require( 'system' );
    14  
    15  var probePage = new WebPage();
    16  var printPage = new WebPage();
    17  
    18  var inputFile = system.args[1] || 'index.html?print-pdf';
    19  var outputFile = system.args[2] || 'slides.pdf';
    20  
    21  if( outputFile.match( /\.pdf$/gi ) === null ) {
    22  	outputFile += '.pdf';
    23  }
    24  
    25  console.log( 'Export PDF: Reading reveal.js config [1/4]' );
    26  
    27  probePage.open( inputFile, function( status ) {
    28  
    29  	console.log( 'Export PDF: Preparing print layout [2/4]' );
    30  
    31  	var config = probePage.evaluate( function() {
    32  		return Reveal.getConfig();
    33  	} );
    34  
    35  	if( config ) {
    36  
    37  		printPage.paperSize = {
    38  			width: Math.floor( config.width * ( 1 + config.margin ) ),
    39  			height: Math.floor( config.height * ( 1 + config.margin ) ),
    40  			border: 0
    41  		};
    42  
    43  		printPage.open( inputFile, function( status ) {
    44  			console.log( 'Export PDF: Preparing pdf [3/4]')
    45  			printPage.evaluate( function() {
    46  				Reveal.isReady() ? window.callPhantom() : Reveal.addEventListener( 'pdf-ready', window.callPhantom );
    47  			} );
    48  		} );
    49  
    50  		printPage.onCallback = function( data ) {
    51  			// For some reason we need to "jump the queue" for syntax highlighting to work.
    52  			// See: http://stackoverflow.com/a/3580132/129269
    53  			setTimeout( function() {
    54  				console.log( 'Export PDF: Writing file [4/4]' );
    55  				printPage.render( outputFile );
    56  				console.log( 'Export PDF: Finished successfully!' );
    57  				phantom.exit();
    58  			}, 0 );
    59  		};
    60  	}
    61  	else {
    62  
    63  		console.log( 'Export PDF: Unable to read reveal.js config. Make sure the input address points to a reveal.js page.' );
    64  		phantom.exit( 1 );
    65  
    66  	}
    67  } );