Created
March 12, 2012 14:24
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Userscript: Show a QR code in order to easily open up the same page on your mobile device.
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| // ==UserScript== | |
| // @name Google Play QR Code | |
| // @namespace Google Play | |
| // @description Show a QR code in order to easily open up the same page on your mobile device. | |
| // @include https://play.google.com/store/apps/details?id=* | |
| // ==/UserScript== | |
| (function() { | |
| findxpath = function(root, xpath) { | |
| return document.evaluate(xpath, root, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); | |
| } | |
| findxpath_singleNode = function(root, xpath) { | |
| return document.evaluate(xpath, root, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; | |
| }; | |
| let path = findxpath_singleNode(document, "//link[@rel='canonical']").href; | |
| let blocks = findxpath(document, "//td[contains(@class, 'doc-banner-title-container')]"); | |
| var newImg = document.createElement("img"); | |
| newImg.src = "http://chart.googleapis.com/chart?chs=100x100&cht=qr&chld=L|1&chl=" + encodeURIComponent(path); | |
| newImg.alt = "QR code link to this page"; | |
| for (i = 0; block = blocks.snapshotItem(i); i++) { | |
| // insert QR code as first child | |
| block.insertBefore(newImg, block.firstChild); | |
| } | |
| })(); |
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