Adds button to show diff (or patch) file for commit
// ==UserScript==
// @name Github Commit Diff
// @namespace https://github.com/jerone/UserScripts
// @description Adds button to show diff (or patch) file for commit
// @author jerone
// @copyright 2014+, jerone (http://jeroenvanwarmerdam.nl)
// @license GNU GPLv3
// @homepage https://github.com/jerone/UserScripts/tree/master/Github_Commit_Diff
// @homepageURL https://github.com/jerone/UserScripts/tree/master/Github_Commit_Diff
// @supportURL https://github.com/jerone/UserScripts/issues
// @contributionURL https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VCYMHWQ7ZMBKW
// @include https://github.com/*
// @version 1.6.1
// @grant none
// ==/UserScript==
/* global unsafeWindow */
(function() {
function addButton() {
var e;
if (!(/\/commit\//.test(location.href) || /\/compare\//.test(location.href) || /\/pull\/\d*\/files/.test(location.href)) ||
!(e = document.getElementById("toc"))) { return; }
var r = e.querySelector(".GithubCommitDiffButton");
if (r) { r.parentElement.removeChild(r); }
function getPatchOrDiffHref(type) {
return (document.querySelector("link[type='text/plain+" + type + "']")
|| document.querySelector("link[type='text/x-" + type + "']")
|| { href: location.href + "." + type }).href;
}
var b = e.querySelector(".toc-diff-stats");
var s = document.createElement("span");
s.textContent = " ";
s.classList.add("octicon", "octicon-diff");
s.style.color = "#333"; // set color because of css selector `p.explain .octicon`;
var a = document.createElement("a");
a.classList.add("minibutton", "tooltipped", "tooltipped-n");
a.setAttribute("href", getPatchOrDiffHref("diff"));
a.setAttribute("rel", "nofollow");
a.setAttribute("aria-label", "Show commit diff.\r\nHold Shift to open commit patch.");
a.appendChild(s);
a.appendChild(document.createTextNode(" Diff"));
var g = document.createElement("div");
g.classList.add("GithubCommitDiffButton", "button-group", "right");
g.style.margin = "0 10px 0 0"; // give us some room;
g.appendChild(a);
b.parentNode.insertBefore(g, b);
a.addEventListener("mousedown", function(e) {
if (e.shiftKey) {
var patch = getPatchOrDiffHref("patch");
e.preventDefault();
a.setAttribute("href", patch);
if (e.which === 1) { // left click;
location.href = patch;
// To prevent Firefox default behavior (opening a new window)
// when pressing shift-click on a link, delete the link.
this.parentElement.removeChild(this);
} else if (e.which === 2) { // middle click;
window.open(patch, "GithubCommitDiff");
}
} else {
a.setAttribute("href", getPatchOrDiffHref("diff"));
}
}, false);
a.addEventListener("mouseout", function() {
a.setAttribute("href", getPatchOrDiffHref("diff"));
}, false);
}
// init;
addButton();
// on pjax;
unsafeWindow.$(document).on("pjax:end", addButton); // `pjax:end` also runs on history back;
// on PR files tab;
var f;
if ((f = document.querySelector(".js-pull-request-tab[data-container-id='files_bucket']"))) {
f.addEventListener("click", function() {
window.setTimeout(addButton, 13);
});
}
})();