Github News Feed Filter

Add filters for Github homepage news feed items

Verzia zo dňa 02.08.2014. Pozri najnovšiu verziu.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, Greasemonkey alebo Violentmonkey.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie, ako napríklad Tampermonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, % alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey alebo Userscripts.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie, ako napríklad Tampermonkey.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie správcu používateľských skriptov.

(Už mám správcu používateľských skriptov, nechajte ma ho nainštalovať!)

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

(Už mám správcu používateľských štýlov, nechajte ma ho nainštalovať!)

// ==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();

})();