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79 lines
2.0 KiB
JavaScript
79 lines
2.0 KiB
JavaScript
#!/usr/bin/env phantomjs
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var system = require('system');
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if (system.args.length < 6) {
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console.log("usage: " + system.args[0] + " <url> <filename> <format> <selector> <scale>");
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console.log(" ex: " + system.args[0] + " page.html page.png png 'body > div' 2");
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phantom.exit(1);
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}
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var url = system.args[1];
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var filename = system.args[2];
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var format = system.args[3];
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var selector = system.args[4];
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var scale = parseInt(system.args[5], 10);
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var page = require('webpage').create();
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page.viewportSize = { width: 9999, height: 9999 };
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page.zoomFactor = scale;
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page.onConsoleMessage = function(msg) {
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console.log('console.log: ' + msg);
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};
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page.onError = function(msg, trace) {
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console.log('Script error: ' + msg);
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phantom.exit(1);
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}
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page.onResourceError = function(resourceError) {
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console.log('Unable to load resource (#' + resourceError.id + 'URL:' + resourceError.url + ')');
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console.log('Error code: ' + resourceError.errorCode + '. Description: ' + resourceError.errorString);
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phantom.exit(1);
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};
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page.open(url, function(status) {
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if (status !== "success") {
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console.log("Failed to load " + url);
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phantom.exit(1);
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}
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var rect = page.evaluate(function(selector) {
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// Alternative to zoomFactor:
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//
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// /* scale the whole body */
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// document.body.style.webkitTransform = "scale(2)";
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// document.body.style.webkitTransformOrigin = "0% 0%";
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// /* fix the body width that overflows out of the viewport */
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// document.body.style.width = "50%";
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//
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// It has small issue with letter spacing though.
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var elements = document.querySelectorAll(selector);
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if (elements.length > 0) {
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return elements[0].getBoundingClientRect();
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}
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}, selector);
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if (!rect) {
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console.log("Couldn't get geometry of requested DOM element");
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phantom.exit(1);
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return;
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}
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page.clipRect = {
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left: rect.left * scale,
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top: rect.top * scale,
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width: rect.width * scale,
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height: rect.height * scale
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};
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page.render(filename, { format: format });
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phantom.exit(0);
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});
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// vim: ft=javascript
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