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Introduce Phantom.js rasterizer script.

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https://raw.githubusercontent.com/ariya/phantomjs/master/examples/rasterize.js.
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hacksalot 2016-01-07 17:53:42 -05:00
parent c5a5d3761d
commit 96b9bb68e3
1 changed files with 51 additions and 0 deletions
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src/utils/rasterize.js Normal file
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// Exemplar script for generating documents with Phantom.js.
// https://raw.githubusercontent.com/ariya/phantomjs/master/examples/rasterize.js
"use strict";
var page = require('webpage').create(),
system = require('system'),
address, output, size;
if (system.args.length < 3 || system.args.length > 5) {
console.log('Usage: rasterize.js URL filename [paperwidth*paperheight|paperformat] [zoom]');
console.log(' paper (pdf output) examples: "5in*7.5in", "10cm*20cm", "A4", "Letter"');
console.log(' image (png/jpg output) examples: "1920px" entire page, window width 1920px');
console.log(' "800px*600px" window, clipped to 800x600');
phantom.exit(1);
} else {
address = system.args[1];
output = system.args[2];
page.viewportSize = { width: 600, height: 600 };
if (system.args.length > 3 && system.args[2].substr(-4) === ".pdf") {
size = system.args[3].split('*');
page.paperSize = size.length === 2 ? { width: size[0], height: size[1], margin: '0px' }
: { format: system.args[3], orientation: 'portrait', margin: '1cm' };
} else if (system.args.length > 3 && system.args[3].substr(-2) === "px") {
size = system.args[3].split('*');
if (size.length === 2) {
pageWidth = parseInt(size[0], 10);
pageHeight = parseInt(size[1], 10);
page.viewportSize = { width: pageWidth, height: pageHeight };
page.clipRect = { top: 0, left: 0, width: pageWidth, height: pageHeight };
} else {
console.log("size:", system.args[3]);
pageWidth = parseInt(system.args[3], 10);
pageHeight = parseInt(pageWidth * 3/4, 10); // it's as good an assumption as any
console.log ("pageHeight:",pageHeight);
page.viewportSize = { width: pageWidth, height: pageHeight };
}
}
if (system.args.length > 4) {
page.zoomFactor = system.args[4];
}
page.open(address, function (status) {
if (status !== 'success') {
console.log('Unable to load the address!');
phantom.exit(1);
} else {
window.setTimeout(function () {
page.render(output);
phantom.exit();
}, 200);
}
});
}