// zapps annoying articles by specific user (eg, rosebuntu*).
// by M.W.Park 2007-07-05
// inspired by trollfreeworld.user.js http://idkiller.iz4u.net/gmonkey/trollfreeworld.user.js
//             Imyejin-free user script from perky http://openlook.org/src/0704/imyejinfree.user.js
//             http://userscripts.org/scripts/review/10398
//
// 2007-07-06 added floating counter panel based on Johannes' RSS Panel (http://www.xs4all.nl/~jlpoutre/BoT/Javascript/RSSpanel/). Thanks Johannes la Poutré. 
// ==UserScript==
// @name          zapper
// @namespace     http://kldp.org/
// @description   zapps annoying articles by specific user 
// @include       http://kldp.org/*
// @exclude       
// ==/UserScript==
function getTitleStr() {
    var titleAttrs = new Array();
    titleAttrs['en'] = "View user profile.";
    titleAttrs['ko'] = "사용자 프로필 보기";
    // you may add additional title strings for specific locales here.
    return titleAttrs[document.documentElement.getAttribute("lang")];
}
//alert(getTitleStr());
var trollLinks = document.evaluate('//a[@title=\"'+getTitleStr()+'\" and contains(text(), "rosebuntu")]',
				   document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);

if (trollLinks.snapshotLength > 0) {
    for (var i = 0; i < trollLinks.snapshotLength; i++) {
	var node = trollLinks.snapshotItem(i);
	while (node.nodeName.toLowerCase() != "tr" && node.getAttribute("class") != "comment") 
	    node = node.parentNode;
	node.parentNode.removeChild(node);
    }

    function removeEventHandler( target, eventName, eventHandler ) {
	if( target.addEventListener )
	    target.removeEventListener( eventName, eventHandler, true );
	else if( target.attachEvent )
	    target.detachEvent( 'on' + eventName, eventHandler );
    }
    function addEventHandler( target, eventName, eventHandler, scope ) {
	var f = scope ? function(){ eventHandler.apply( scope, arguments ); } : eventHandler;
	if( target.addEventListener )
	    target.addEventListener( eventName, f, true );
	else if( target.attachEvent )
	    target.attachEvent( 'on' + eventName, f );
	return f;
    }

    // Modified DOM-Drag from Book Burro 0.16
    var Drag = function(){ this.init.apply( this, arguments ); };

    Drag.fixE = function( e ) {
	if( typeof e == 'undefined' ) e = window.event;
	if( typeof e.layerX == 'undefined' ) e.layerX = e.offsetX;
	if( typeof e.layerY == 'undefined' ) e.layerY = e.offsetY;
	return e;
    };

    Drag.prototype.init = function( handle, dragdiv ) {
	this.div = dragdiv || handle;
	this.handle = handle;
	if( isNaN(parseInt(this.div.style.left)) ) this.div.style.left  = '0px';
	if( isNaN(parseInt(this.div.style.top)) ) this.div.style.top = '0px';
	this.onDragStart = function(){};
	this.onDragEnd = function(){};
	this.onDrag = function(){};
	this.onClick = function(){};
	this.mouseDown = addEventHandler(this.handle, 'mousedown', this.start, this);
    };

    Drag.prototype.start = function( e ) {
	// this.mouseUp = addEventHandler(this.handle, 'mouseup', this.end, this);
	e = Drag.fixE(e);

	this.started = new Date();
	var y = this.startY = parseInt(this.div.style.top);
	var x = this.startX = parseInt(this.div.style.left);
	this.onDragStart(x, y);
	this.lastMouseX = e.clientX;
	this.lastMouseY = e.clientY;
	this.documentMove = addEventHandler(document, 'mousemove', this.drag, this);
	this.documentStop = addEventHandler(document, 'mouseup', this.end, this);
	if (e.preventDefault) e.preventDefault();
	return false;
    };

    Drag.prototype.drag = function( e )	{
	e = Drag.fixE(e);
	var ey = e.clientY;
	var ex = e.clientX;
	var y = parseInt(this.div.style.top);
	var x = parseInt(this.div.style.left);
	var nx = ex + x - this.lastMouseX;
	var ny = ey + y - this.lastMouseY;
	this.div.style.left	= nx + 'px';
	this.div.style.top	= ny + 'px';
	this.lastMouseX	= ex;
	this.lastMouseY	= ey;
	this.onDrag(nx, ny);
	if (e.preventDefault) e.preventDefault();
	return false;
    };

    Drag.prototype.end = function() {
	removeEventHandler( document, 'mousemove', this.documentMove );
	removeEventHandler( document, 'mouseup', this.documentStop );
	var time = (new Date()) - this.started;
	var x = parseInt(this.div.style.left),  dx = x - this.startX;
	var y = parseInt(this.div.style.top), dy = y - this.startY;
	this.onDragEnd( x, y, dx, dy, time );
	if( (dx*dx + dy*dy) < (4*4) && time < 1e3 )
	    this.onClick( x, y, dx, dy, time );
    };

    function dom_setStyle(elt, str) {
	elt.setAttribute("style", str);
	// for MSIE:
	if (elt.style.setAttribute) {
	    elt.style.setAttribute("cssText", str, 0);
	    // positioning for MSIE:
	    if (elt.style.position == "fixed") {
		elt.style.position = "absolute";
	    }
	}
    }
    function dom_getElements(node, elt) {
	var list = node.getElementsByTagName(elt);
	return (list.length) ? list : node.getElementsByTagNameNS("*", elt); 
    }
    function dom_getFirstNodeValue(node, elt) {
	try {
	    var list = dom_getElements(node, elt);
	    var chld = list[0].firstChild;
	    return chld.nodeValue;
	} catch (e) {
	    // dbg("missing element " + elt + "\nError: " + e.message);
	    return "";
	}
    }

    BACKGROUND       = "#ffc";
    TEXT             = "#000"; 
    BORDER           = "orange"; 
    TITLE_BACKGROUND = "orange";
    TITLE_BORDER     = "#ffc";
    TITLE_TEXT       = "#fff";
    OPACITY          = "0.80";

    var box = window.document.createElement("div");
    dom_setStyle(box,
		 "position:fixed;z-index:998;top:1px;left:1px;margin:0px;background-color:" +
		 BACKGROUND + ";border:1px solid " + BORDER +
		 ";padding:4px;text-align:left;opacity:" + OPACITY + ";font:8pt sans-serif;overflow:hidden;width:110px;height:15px;max-height:100%;margin-bottom:15px;");

    var title = window.document.createElement("div");
    dom_setStyle(title,
		 "position:absolute;top:1px;left:1px;z-index:999;margin:0px;background-color:" +
		 TITLE_BACKGROUND + ";border:1px solid " + TITLE_BORDER +
		 ";padding:4px;text-align:left;font:8pt sans-serif;width:106px;height:11px;overflow:hidden;margin-bottom:15px;cursor:move;font-weight:bold;color:"
		 + TITLE_TEXT + ";");
    title.appendChild(window.document.createTextNode(trollLinks.snapshotLength + " item" + (trollLinks.snapshotLength > 1 ? "s" : "") + " zapped."));
    box.appendChild(title);
    dom_getElements(document, "body")[0].appendChild(box);
    title.drag = new Drag(title, box); // make draggable
}