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Open IPython notebook from Github in NBViewer
// ==UserScript==
// @name NBViewer GitHub Button
// @description Open IPython notebook from Github in NBViewer
// @version 0.12
// @namespace http://telenczuk.pl
// @grant none
// @include http*://github.com/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js
// ==/UserScript==
// converted from bookmarklet implemented by Matt Davis jiffyclub
// conversion to GreaseMonkey script by Bartosz Telenczuk
// waitForKeyElements function by Brock Adams
// http://stackoverflow.com/questions/8281441/fire-greasemonkey-script-on-ajax-request
this.$ = this.jQuery = jQuery.noConflict(true);
function waitForKeyElements (
selectorTxt, /* Required: The jQuery selector string that
specifies the desired element(s).
*/
actionFunction, /* Required: The code to run when elements are
found. It is passed a jNode to the matched
element.
*/
bWaitOnce, /* Optional: If false, will continue to scan for
new elements even after the first match is
found.
*/
iframeSelector /* Optional: If set, identifies the iframe to
search.
*/
)
{
var targetNodes, btargetsFound;
if (typeof iframeSelector == "undefined")
targetNodes = $(selectorTxt);
else
targetNodes = $(iframeSelector).contents ()
.find (selectorTxt);
if (targetNodes && targetNodes.length > 0) {
/*--- Found target node(s). Go through each and act if they
are new.
*/
targetNodes.each ( function () {
var jThis = $(this);
var alreadyFound = jThis.data ('alreadyFound') || false;
if (!alreadyFound) {
//--- Call the payload function.
actionFunction (jThis);
jThis.data ('alreadyFound', true);
}
} );
btargetsFound = true;
}
else {
btargetsFound = false;
}
//--- Get the timer-control variable for this selector.
var controlObj = waitForKeyElements.controlObj || {};
var controlKey = selectorTxt.replace (/[^\w]/g, "_");
var timeControl = controlObj [controlKey];
//--- Now set or clear the timer as appropriate.
if (btargetsFound && bWaitOnce && timeControl) {
//--- The only condition where we need to clear the timer.
clearInterval (timeControl);
delete controlObj [controlKey]
}
else {
//--- Set a timer, if needed.
if ( ! timeControl) {
timeControl = setInterval ( function () {
waitForKeyElements ( selectorTxt,
actionFunction,
bWaitOnce,
iframeSelector
);
},
500
);
controlObj [controlKey] = timeControl;
}
}
waitForKeyElements.controlObj = controlObj;
}
function getUrl() {
// here goes the code of the bookmarklet
date=new Date();
url_root='http://nbviewer.ipython.org/';
url=null;
if (location.href.search(/^https:\/\/github\.com\/.*\.ipynb$/) !== -1) {
gh = location.href.match(/^https:\/\/github\.com\/(.*)\/(.*)\/blob\/(.*)\/(.*\.ipynb)$/);
user = gh[1];
repo = gh[2];
branch = gh[3];
file = gh[4];
raw_url = 'raw.github.com/'+user+'/'+repo+'/'+branch+'/'+file;
url = url_root + 'urls/' + raw_url;
}
return url
};
var selector = "#files .button-group"
function addButton () {
var newButton = document.createElement('a');
var url = getUrl()
if (url) {
newButton.innerHTML = 'NBViewer';
newButton.className = 'button minibutton'
newButton.setAttribute('href', getUrl());
var button_group = document.querySelector( selector );
button_group.appendChild(newButton);
}
};
waitForKeyElements(selector, addButton);
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