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phpBB User Hide engl

Hide posts of the selected users on any phpBB system.

// ==UserScript==
// @name  phpBB User Hide engl
// @include */viewtopic.php* 
// @description Hide posts of the selected users on any phpBB system. 
// @exclude
// @version 0.0.1.20141027081832
// @namespace https://greasyfork.org/users/6356
// ==/UserScript==

(function() {
	// Get stored hidden users from cookie
	var users = [];
	var cookieName = "phpUserHide";
	for (var i = 0; i < document.cookie.split('; ').length; i++) {
		var oneCookie = document.cookie.split('; ')[i].split('=');
		if (oneCookie[0] == cookieName) {
			users = oneCookie[1].split(', ');
			break;
		}
	}

	// Cursor functions
	var curPointer = function(event) {
		event.target.style.cursor = 'pointer';
		event.preventDefault();
	};
	var curDefault = function(event) {
		event.target.style.cursor = 'default';
		event.preventDefault();
	};

	// Add or remove a user from the cookie
	var addRemoveUser = function(event) {
		// Parse current cookie
		for(j = 0; j < document.cookie.split('; ').length; j++ ) {
			var oneCookie = document.cookie.split('; ')[j].split('=');
			if (oneCookie[0] == cookieName) {
				users = oneCookie[1].split(', ');
				break;
			}
		}
		var user = escape(event.target.nextSibling.innerHTML)
		notFound = true;
		for (var j = 0; j < users.length; j++) {
			if (users[j] == user) {
				users.splice(j, 1);
				notFound = false;
			}
		}
		if (notFound)
			users.push(user);
		if (users.length > 0) {
			var date = new Date();
			var days = 365;
			date.setTime(date.getTime() + (days*24*60*60*1000));
			var expires = '; expires=' + date.toGMTString();
			var value = users.join(', ');
			document.cookie = cookieName + '=' + value + expires + '; path=/';
		} else {
			document.cookie = cookieName + '=;expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/';
		}
		window.alert(unescape(user) + ' has been ' + (notFound ? 'added to' : 'removed from')
			+ ' your hide list\n'
			+ 'You must refresh the page to view the changes.');
		event.preventDefault();
	};
	// Toggle display of user's post
	var togglePost = function(event) {
		var displayState = event.target.getAttribute('displaystate');
		if (displayState == 'none')
			displayState = '';
		else
			displayState = 'none';
		event.target.setAttribute('displaystate', displayState);

		containingRow = event.target.parentNode.parentNode;
		var innerTags = containingRow.getElementsByTagName('*');
		for (var i = 0; i < innerTags.length; i++) {
			var tagClass = innerTags[i].getAttribute('class');
			if (tagClass == 'postbody' || tagClass == 'postsig'
				|| tagClass == 'postdetails' || innerTags[i].tagName == 'TABLE')
				innerTags[i].style.display = displayState;
		}
		event.preventDefault();
	};
	// Toggle display of user's quote
	var toggleQuote = function(event) {
		var displayState = event.target.getAttribute('displaystate');
		if (displayState == 'none')
			displayState = 'table-row';
		else
			displayState = 'none';
		event.target.setAttribute('displaystate', displayState);

		// Jump to parent row
		var containingRow = event.target.parentNode.parentNode.parentNode.parentNode.nextSibling;
		// Find containing row
		while (containingRow.nodeType != 1)
			containingRow = containingRow.nextSibling;
		containingRow.style.display = displayState;

		event.preventDefault();
	};

	// Find all the usernames in the page
	var results = document.evaluate("//span[@class='name']/b|//span[@class='name']/strong", document, null,
		XPathResult.ANY_TYPE, null);
	var resultNodes = [];
	var aResult;
	while (aResult = results.iterateNext())
		resultNodes.push(aResult);

	// Loop through every user post on the page
	for (var i in resultNodes) {
		var containingRow = resultNodes[i].parentNode.parentNode.parentNode;
		// Format whitespace
		var user = escape(resultNodes[i].innerHTML);

		// Flag whether the user is in our hide list
		var notFound = true;
		for (var j = 0; j < users.length; j++) {
			if (users[j] == user) {
				notFound = false;
			}
		}

		// Add relevant event handlers to user's name and a toggler node
		var toggler = document.createElement('span');
		toggler.setAttribute('title', "click to add or remove this user from your hide list");
		toggler.appendChild(document.createTextNode('[X] '));
		toggler.style.fontSize = "7pt";
		toggler.addEventListener('mouseover', curPointer, true);
		toggler.addEventListener('mouseout', curDefault, true);
		toggler.addEventListener('click', addRemoveUser, true);

		resultNodes[i].parentNode.insertBefore(toggler, resultNodes[i]);

		// If this user isn't in our hide list, skip to the next user
		if (notFound)
			continue;

		// Find the first element node (td) in the containing row
		var elem = containingRow.firstChild;
		while (elem.nodeType != 1)
			elem = elem.nextSibling;

		// Create a span to control toggling
		var span = document.createElement('span');
		span.appendChild(document.createTextNode('Toggle Display'));
		span.appendChild(document.createElement('br'));
		span.setAttribute('class', 'gensmallbold');
		span.style.textDecoration = 'underline';
		span.setAttribute('displaystate', 'none');
		span.addEventListener('mouseover', curPointer, true);
		span.addEventListener('mouseout', curDefault, true);
		span.addEventListener('click', togglePost, true);

		// Insert the span after the username and before the <br>
		elem.insertBefore(span, elem.firstChild.nextSibling.nextSibling);
		// Insert a <br> after the username and before the span
		elem.insertBefore(document.createElement('br'), elem.firstChild.nextSibling.nextSibling);

		var innerTags = containingRow.getElementsByTagName('*');
		for (var i = 0; i < innerTags.length; i++) {
			var tagClass = innerTags[i].getAttribute('class');
			if (tagClass == 'postbody' || tagClass == 'postsig'
				|| tagClass == 'postdetails' || innerTags[i].tagName == 'TABLE')
				innerTags[i].style.display = 'none';
		}
	}

	// Find all the usernames quoted in the page
	var results = document.evaluate("//td[@class='quote']/parent::*/preceding-sibling::*/td/span/b|"
		+ "//td[@class='quote']/parent::*/preceding-sibling::*/td/span/strong", document, null,
		XPathResult.ANY_TYPE, null);
	var resultNodes = [];
	var aResult;
	while (aResult = results.iterateNext())
		resultNodes.push(aResult);

	// Loop through every user quote on the page
	for (var i in resultNodes) {
		var containingRow = resultNodes[i].parentNode.parentNode.parentNode.nextSibling;
		while (containingRow.nodeType != 1)
			containingRow = containingRow.nextSibling;

		// Find username
		var usermatch = resultNodes[i].innerHTML.match(/(.*) wrote:$/);
		if (usermatch)
			var user = escape(usermatch[1]);
		else
			continue;

		// Flag whether the user is in our hide list
		var notFound = true;
		for (var j = 0; j < users.length; j++) {
			if (users[j] == user) {
				notFound = false;
			}
		}

		// If this user isn't in our hide list, skip to the next user
		if (notFound)
			continue;

		// Create a span to control toggling
		var span = document.createElement('span');
		span.appendChild(document.createElement('br'));
		span.appendChild(document.createTextNode('Toggle Display'));
		span.setAttribute('class', 'gensmallbold');
		span.style.textDecoration = 'underline';
		span.setAttribute('displaystate', 'none');
		span.addEventListener('mouseover', curPointer, true);
		span.addEventListener('mouseout', curDefault, true);
		span.addEventListener('click', toggleQuote, true);

		resultNodes[i].appendChild(span);
		
		// Hide the quote
		containingRow.style.display = 'none';
	}

})();