Github News Feed Filter

Add filters for Github homepage news feed items

Versión del día 2/8/2014. Echa un vistazo a la versión más reciente.

Tendrás que instalar una extensión para tu navegador como Tampermonkey, Greasemonkey o Violentmonkey si quieres utilizar este script.

You will need to install an extension such as Tampermonkey to install this script.

Tendrás que instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Userscripts para instalar este script.

Tendrás que instalar una extensión como Tampermonkey antes de poder instalar este script.

Necesitarás instalar una extensión para administrar scripts de usuario si quieres instalar este script.

(Ya tengo un administrador de scripts de usuario, déjame instalarlo)

Tendrás que instalar una extensión como Stylus antes de poder instalar este script.

Tendrás que instalar una extensión como Stylus antes de poder instalar este script.

Tendrás que instalar una extensión como Stylus antes de poder instalar este script.

Para poder instalar esto tendrás que instalar primero una extensión de estilos de usuario.

Para poder instalar esto tendrás que instalar primero una extensión de estilos de usuario.

Para poder instalar esto tendrás que instalar primero una extensión de estilos de usuario.

(Ya tengo un administrador de estilos de usuario, déjame instalarlo)

// ==UserScript==
// @name        Github News Feed Filter
// @namespace   https://github.com/jerone/UserScripts
// @description Add filters for Github homepage news feed items
// @author      jerone
// @copyright   2014+, jerone (http://jeroenvanwarmerdam.nl)
// @license     GNU GPLv3
// @homepage    https://github.com/jerone/UserScripts/tree/master/Github_News_Feed_Filter
// @homepageURL https://github.com/jerone/UserScripts/tree/master/Github_News_Feed_Filter
// @include     https://github.com/
// @include     https://github.com/?*
// @include     https://github.com/orgs/*/dashboard
// @include     https://github.com/orgs/*/dashboard?*
// @include     https://github.com/*tab=activity*
// @version     5.3
// @grant       none
// ==/UserScript==
/* global Event */

(function() {

	var FILTERS = [
		{ id: "*", text: "All News Feed", icon: "octicon-radio-tower", classNames: ["*"] },
		{
			id: "issues", text: "Issues", icon: "octicon-issue-opened", classNames: ["issues_opened", "issues_closed", "issues_reopened", "issues_comment"], subFilters: [
				{ id: "issues opened", text: "Opened", icon: "octicon-issue-opened", classNames: ["issues_opened"] },
				{ id: "issues closed", text: "Closed", icon: "octicon-issue-closed", classNames: ["issues_closed"] },
				{ id: "issues reopened", text: "Reopened", icon: "octicon-issue-reopened", classNames: ["issues_reopened"] },
				{ id: "issues comments", text: "Comments", icon: "octicon-comment-discussion", classNames: ["issues_comment"] }
			]
		},
		{
			id: "commits", text: "Commits", icon: "octicon-git-commit", classNames: ["push", "commit_comment"], subFilters: [
				{ id: "commits pushed", text: "Pushed", icon: "octicon-git-commit", classNames: ["push"] },
				{ id: "commits comments", text: "Comments", icon: "octicon-comment-discussion", classNames: ["commit_comment"] }
			]
		},
		{
			id: "pr", text: "Pull Requests", icon: "octicon-git-pull-request", classNames: ["pull_request_opened", "pull_request_closed", "pull_request_merged", "pull_request_comment"], subFilters: [
				{ id: "pr opened", text: "Opened", icon: "octicon-git-pull-request", classNames: ["pull_request_opened"] },
				{ id: "pr closed", text: "Closed", icon: "octicon-git-pull-request-abandoned", classNames: ["pull_request_closed"] },
				{ id: "pr merged", text: "Merged", icon: "octicon-git-merge", classNames: ["pull_request_merged"] },
				{ id: "pr comments", text: "Comments", icon: "octicon-comment-discussion", classNames: ["pull_request_comment"] }
			]
		},
		{
			id: "repo", text: "Repo", icon: "octicon-repo", classNames: ["create", "public", "fork", "branch_create", "branch_delete", "tag_add", "tag_remove", "release", "delete"], subFilters: [
				{ id: "repo created", text: "Created", icon: "octicon-repo-create", classNames: ["create"] },
				{ id: "repo public", text: "Public", icon: "octicon-repo-push", classNames: ["public"] },
				{ id: "repo forked", text: "Forked", icon: "octicon-repo-forked", classNames: ["fork"] },
				{
					id: "repo branched", text: "Branched", icon: "octicon-git-branch", classNames: ["branch_create", "branch_delete"], subFilters: [
						{ id: "repo branch created", text: "Created", icon: "octicon-git-branch-create", classNames: ["branch_create"] },
						{ id: "repo branch deleted", text: "Deleted", icon: "octicon-git-branch-delete", classNames: ["branch_delete"] }
					]
				},
				{
					id: "repo tagged", text: "Tagged", icon: "octicon-tag", classNames: ["tag_add", "tag_remove"], subFilters: [
						{ id: "repo tag added", text: "Added", icon: "octicon-tag-add", classNames: ["tag_add"] },
						{ id: "repo tag removed", text: "Removed", icon: "octicon-tag-remove", classNames: ["tag_remove"] }
					]
				},
				{ id: "repo released", text: "Released", icon: "octicon-repo-pull", classNames: ["release"] },
				{ id: "repo deleted", text: "Deleted", icon: "octicon-repo-delete", classNames: ["delete"] }
			]
		},
		{
			id: "user", text: "User", icon: "octicon-person", classNames: ["watch_started", "member_add", "team_add"], subFilters: [
				{ id: "user starred", text: "Starred", icon: "octicon-star", classNames: ["watch_started"] },
				{ id: "user added", text: "Member added", icon: "octicon-person-add", classNames: ["member_add", "team_add"] }
			]
		},
		{ id: "wiki", text: "Wiki", icon: "octicon-book", classNames: ["gollum"] },
		{
			id: "gist", text: "Gist", icon: "octicon-gist", classNames: ["gist_created", "gist_updated"], subFilters: [
				{ id: "gist created", text: "Created", icon: "octicon-gist-new", classNames: ["gist_created"] },
				{ id: "gist updated", text: "Updated", icon: "octicon-gist", classNames: ["gist_updated"] }
			]
		}
		// Possible other classes: follow
	];

	var datasetId = "githubNewsFeedFilterId";

	function proxy(fn) {
		return function() {
			var that = this;
			return function(e) {
				var args = that.slice(0);  // clone;
				args.unshift(e);  // prepend event;
				fn.apply(this, args);
			};
		}.call([].slice.call(arguments, 1));
	}

	function addFilterMenu(filters, parent, container, sidebar, main) {
		var ul = document.createElement("ul");
		ul.classList.add("filter-list");
		if (!main) {
			ul.classList.add("small");
			ul.style.marginLeft = "10px";
			ul.style.display = "none";
		}
		parent.appendChild(ul);

		filters.forEach(function(subFilter) {
			var li = addFilterMenuItem(subFilter, ul, container, sidebar);

			if (subFilter.subFilters) {
				addFilterMenu(subFilter.subFilters, li, container, sidebar, false);
			}
		});
	}

	function addFilterMenuItem(filter, parent, container, sidebar) {
		var a = document.createElement("a");
		a.classList.add("filter-item");
		a.setAttribute("href", "/");
		a.setAttribute("title", filter.classNames.join(" & "));
		a.dataset[datasetId] = filter.id;

		var s = document.createElement("span");
		s.classList.add("octicon", filter.icon);
		s.style.marginRight = "10px";
		s.style.cssFloat = "left";
		s.style.minWidth = "16px";
		a.appendChild(s);

		var c = document.createElement("span");
		c.classList.add("count");
		c.appendChild(document.createTextNode("0"));
		a.appendChild(c);

		a.appendChild(document.createTextNode(filter.text));

		a.addEventListener("click", proxy(function(e, classNames) {
			e.preventDefault();

			var any = false,
				all = classNames[0] === "*",
				some = function(alert) { return classNames.some(function(cl) { return alert.classList.contains(cl); }); };
			Array.forEach(container.querySelectorAll(".alert"), function(alert) {
				alert.style.display = (all || some(alert)) && (any = true) ? "block" : "none";
			});
			var none = container.querySelector(".no-alerts");
			if (any && none) {
				none.parentNode.removeChild(none);
			} else if (!any && !none) {
				none = document.createElement("div");
				none.classList.add("no-alerts");
				none.style.padding = "0 0 1em 45px";
				none.style.fontStyle = "italic";
				none.appendChild(document.createTextNode("No feed items for this filter. Press the button below to load more items..."));
				container.insertBefore(none, container.firstChild);
			}

			Array.forEach(sidebar.querySelectorAll(".filter-list.small"), function(ul) { ul.style.display = "none"; });
			showParentMenu(a.parentNode);
			var subMenu = a.parentNode.querySelector("ul");
			if (subMenu) { subMenu.style.display = "block"; }

			Array.forEach(sidebar.querySelectorAll(".selected"), function(m) { m.classList.remove("selected"); });
			this.classList.add("selected");

			if (this.dataset[datasetId] !== "*") {
				var urlSearch = "filter=" + encodeURIComponent(this.dataset[datasetId]);
				history.pushState(null, null, location.search && /filter=[^&]*/g.test(location.search)
												? location.href.replace(/filter=[^&]*/g, urlSearch)
												: location.href + (location.search ? "&" : "?") + urlSearch);
			} else {
				history.pushState(null, null, location.href.replace(/(filter=[^&]*&|\?filter=[^&]*$|&filter=[^&]*)/g, ""));  // http://regexr.com/398lv
			}
		}, filter.classNames));

		var li = document.createElement("li");
		li.appendChild(a);
		li.filterClassNames = filter.classNames;

		parent.appendChild(li);

		return li;
	}

	function showParentMenu(menuItem) {
		var parentMenuItem = menuItem.parentNode;
		if (parentMenuItem.classList.contains("filter-list")) {
			parentMenuItem.style.display = "block";
			showParentMenu(parentMenuItem.parentNode);
		}
	}

	function pageUpdate(container, sidebar, wrapper) {
		Array.forEach(container.querySelectorAll(".alert"), function(alert) {
			if (alert.getElementsByClassName("octicon-git-branch-create").length > 0) {
				alert.classList.remove("create");
				alert.classList.add("branch_create");
			} else if (alert.getElementsByClassName("octicon-git-branch-delete").length > 0) {
				alert.classList.remove("delete");
				alert.classList.add("branch_delete");
			} else if (alert.getElementsByClassName("octicon-tag-add").length > 0) {
				alert.classList.remove("create");
				alert.classList.add("tag_add");
			} else if (alert.getElementsByClassName("octicon-tag-remove").length > 0) {
				alert.classList.remove("delete");
				alert.classList.add("tag_remove");
			} else if (alert.getElementsByClassName("octicon-git-pull-request").length > 0) {
				alert.classList.remove("issues_opened", "issues_closed");
				if (alert.querySelector(".title span").textContent.toUpperCase() === "OPENED") {  // English localisation;
					alert.classList.add("pull_request_opened");
				} else if (alert.querySelector(".title span").textContent.toUpperCase() === "MERGED") {  // English localisation;
					alert.classList.add("pull_request_merged");
				} else if (alert.querySelector(".title span").textContent.toUpperCase() === "CLOSED") {  // English localisation;
					alert.classList.add("pull_request_closed");
				}
			} else if (alert.classList.contains("issues_comment") && alert.querySelectorAll(".title a")[1].getAttribute("href").split("/")[5] === "pull") {
				alert.classList.remove("issues_comment");
				alert.classList.add("pull_request_comment");
			} else if (alert.classList.contains("gist")) {
				alert.classList.remove("gist");
				alert.classList.add("gist_" + alert.querySelector(".title span").textContent);
			}
		});

		Array.forEach(wrapper.querySelectorAll("li"), function(li) {
			var c = li.querySelector(".count");
			if (li.filterClassNames[0] === "*") {
				c.textContent = container.querySelectorAll(".alert").length;
			} else {
				c.textContent = "0";
				Array.forEach(container.querySelectorAll(".alert"), function(alert) {
					if (li.filterClassNames.some(function(cl) { return alert.classList.contains(cl); })) {
						c.textContent = parseInt(c.textContent, 10) + 1;
					}
				});
			}
		});

		var filter = /filter=[^&]*/g.test(location.search)
						? decodeURIComponent(/filter=([^&]*)/g.exec(location.search)[1])
						: "*";
		wrapper.querySelector('.filter-item[data-github-news-feed-filter-id="' + filter + '"]').dispatchEvent(new Event("click"));
	}

	function addFilters() {
		var container = document.querySelector(".news");
		if (!container) { return; }

		var sidebar = document.querySelector(".dashboard-sidebar") || document.querySelector(".column.one-fourth.vcard");

		var rule = document.createElement("div");
		rule.classList.add("rule");
		sidebar.insertBefore(rule, sidebar.firstChild);

		var wrapper = document.createElement("div");
		sidebar.insertBefore(wrapper, sidebar.firstChild);

		addFilterMenu(FILTERS, wrapper, container, sidebar, true);

		pageUpdate(container, sidebar, wrapper);

		// update on clicking "More"-button;
		new MutationObserver(function() {
			pageUpdate(container, sidebar, wrapper);
		}).observe(container, { childList: true });
	}

	// init;
	addFilters();

})();