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REMitchell
GitHub Repository: REMitchell/python-crawling
 Path: blob/master/6-Selenium/phantomjs/examples/printheaderfooter.js
164 views
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var page = require('webpage').create(),

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    system = require('system');

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function someCallback(pageNum, numPages) {

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    return "<h1> someCallback: " + pageNum + " / " + numPages + "</h1>";

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}

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if (system.args.length < 3) {

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    console.log('Usage: printheaderfooter.js URL filename');

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    phantom.exit(1);

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} else {

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    var address = system.args[1];

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    var output = system.args[2];

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    page.viewportSize = { width: 600, height: 600 };

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    page.paperSize = {

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        format: 'A4',

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        margin: "1cm",

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        /* default header/footer for pages that don't have custom overwrites (see below) */

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        header: {

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            height: "1cm",

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            contents: phantom.callback(function(pageNum, numPages) {

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                if (pageNum == 1) {

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                    return "";

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                }

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                return "<h1>Header <span style='float:right'>" + pageNum + " / " + numPages + "</span></h1>";

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            })

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        },

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        footer: {

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            height: "1cm",

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            contents: phantom.callback(function(pageNum, numPages) {

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                if (pageNum == numPages) {

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                    return "";

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                }

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                return "<h1>Footer <span style='float:right'>" + pageNum + " / " + numPages + "</span></h1>";

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            })

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        }

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    };

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    page.open(address, function (status) {

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        if (status !== 'success') {

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            console.log('Unable to load the address!');

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        } else {

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            /* check whether the loaded page overwrites the header/footer setting,

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               i.e. whether a PhantomJSPriting object exists. Use that then instead

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               of our defaults above.

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               example:

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               <html>

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                 <head>

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                   <script type="text/javascript">

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                     var PhantomJSPrinting = {

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                        header: {

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                            height: "1cm",

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                            contents: function(pageNum, numPages) { return pageNum + "/" + numPages; }

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                        },

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                        footer: {

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                            height: "1cm",

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                            contents: function(pageNum, numPages) { return pageNum + "/" + numPages; }

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                        }

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                     };

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                   </script>

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                 </head>

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                 <body><h1>asdfadsf</h1><p>asdfadsfycvx</p></body>

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              </html>

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            */

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            if (page.evaluate(function(){return typeof PhantomJSPrinting == "object";})) {

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                paperSize = page.paperSize;

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                paperSize.header.height = page.evaluate(function() {

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                    return PhantomJSPrinting.header.height;

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                });

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                paperSize.header.contents = phantom.callback(function(pageNum, numPages) {

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                    return page.evaluate(function(pageNum, numPages){return PhantomJSPrinting.header.contents(pageNum, numPages);}, pageNum, numPages);

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                });

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                paperSize.footer.height = page.evaluate(function() {

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                    return PhantomJSPrinting.footer.height;

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                });

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                paperSize.footer.contents = phantom.callback(function(pageNum, numPages) {

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                    return page.evaluate(function(pageNum, numPages){return PhantomJSPrinting.footer.contents(pageNum, numPages);}, pageNum, numPages);

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                });

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                page.paperSize = paperSize;

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                console.log(page.paperSize.header.height);

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                console.log(page.paperSize.footer.height);

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            }

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            window.setTimeout(function () {

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                page.render(output);

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                phantom.exit();

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            }, 200);

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        }

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    });

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}

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