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| // Problems: http://stackoverflow.com/questions/14033588/javascript-click-method-only-works-once-in-chrome-extension | |
| function _anchorDownloader(url, filename) { | |
| var timeout = 500; | |
| return 'javascript:\'<!doctype html><html>'+ | |
| '<head></head>' + | |
| '<script>' + | |
| 'function initDownload() {'+ | |
| 'var el = document.getElementById("anchor");'+ | |
| 'el.click();' + | |
| 'setTimeout(function() { window.close(); }, ' + timeout + ');' + | |
| '}'+ | |
| '</script>' + | |
| '<body onload="initDownload()">' + | |
| '<a id="anchor" href="' + url + '" download="'+ filename + '"></a>'+ | |
| '</body>' + | |
| '</html>\''; | |
| }; | |
| // A generic onclick callback function. | |
| function downloadResource(info, tab) { | |
| var url = info['srcUrl']; | |
| console.log("url: " + url); | |
| var filename = url.substring(url.lastIndexOf('/')+1); | |
| if (chrome.downloads) { | |
| chrome.downloads.download({ url: url, filename: filename, saveAs: false }); | |
| } else { | |
| var a = document.createElement('a'); | |
| a.href = url; | |
| a.download = filename; | |
| // a.click(); | |
| chrome.tabs.create( { 'url' : _anchorDownloader( url, filename ), 'active' : false } ); // gets around the download limit | |
| } | |
| } | |
| // Register the contextual menu | |
| chrome.contextMenus.create({"title": "Save Image to Downloads…", "contexts":["image"], "onclick": downloadResource}); |
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Thanks to Zertosh for some help here getting this working as intended http://chat.stackoverflow.com/rooms/26116/discussion-between-zertosh-and-coneybeare