// ==UserScript==
// @name          Formatting_Panel
// @namespace     http://molhanec.net/lopuch/?n=Main.JohnyG
// @description	  Prida k textovemu poli tlacitka pro formatovani textu
// @include http://*lopuch.cz/*
// @include http://*lapiduch.cz/*
// @include http://*nyx.cz/*
// @include http://*okoun.cz/*
// @exclude *billboard*
// ==/UserScript==


// inspiration: http://www.thecodebehind.com/code/javascript/examples/javascript-textarea-buttons-bold-italic.aspx

//BLOK NASTAVENI
//
//pokud neni uvedeno jinak, mohou promenne nabyvat hodnot 0 a 1, kdy 0 znamena vypnuto a 1 zapnuto

var wantb = 1; //zapne ci vypne tlacitko B - tucne
var wanti = 1; //tlacitko I - kurzivou
var wantu = 1; //tlacitko U - podrzene
var wantst = 1; //tlacitko ST - skrtle

var wanturl = 1;  //tlacitko URL - odkaz
var wantimg = 1; //tlacitko IMG - obrazek
var wantfont = 1; //tlacitko FONT - barva a velikost pisma
var wantspoil = 1; //tlacitko SPOIL - bile spoilery ohranicene hvezdickami
var wantbr = 1; //tlacitko BR - odstavec

var wantcode = 1; //tlacitko CODE - zdrojove kody, atp.

var wantgoto = 1; //tlacitko JDI NA: - prechod na libovolny post v klubu

var wantfilter = 1; //tlacitko FILTR - hledani podle pole pro zadavani textu
var wantnofilter = 1; //tlacitko NEFILTROVAT - zruseni vsech filtru bez nutnosti cistit pole

var wantresize = 1; //zapne ci vypne zmenu velikosti pole pro zadavani textu prispevku, nasledujici dve volby maji vliv pouze kdyz je tato zapnuta
var addwidth = 40; //zde nastavite konkretni navyseni SIRKY editacniho pole (tedy 0 nezmeni sirku, 10 ji navysi o 10 znaku, -10 ji o deset zmensi)
var addheight = 7; //konkretni navyseni VYSKY editacniho pole

//konec nastaveni

var textarea;
var aftertextarea;
var adresa = location.href;
var domena = document.domain; 
var loporlap = false;

function link(event) {
    try {
        var url = prompt('Zadejte adresu odkazu: ', '');
        if (url) {
            if (textarea.selectionStart < textarea.selectionEnd) {
                var pretext = textarea.value.substring(0, textarea.selectionStart);
                var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
                var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
                textarea.value = pretext + '<a href="' + url + '">' + selection + '</a>' + posttext;
            } else {
				var str = prompt('Zadejte text odkazu: ', '');
                textarea.value = textarea.value + '<a href="' + url + '">' + str + '</a>';
            }
        }
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function img(event) {
    try {
        if (textarea.selectionStart < textarea.selectionEnd) {
			var pretext = textarea.value.substring(0, textarea.selectionStart);
            var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
            var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
			textarea.value = pretext + '<img src="' + selection + '" />' + posttext;
        } else {
        	var str = prompt('Zadejte cestu k obrazku: ', '');
			if (str) textarea.value = textarea.value + '<img src="' + str + '" />';
        }

        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function font(event) {
    try {
        var color = prompt('Zadejte barvu textu: ', '');
        var size = prompt('Zadejte velikost fontu: ', '');
        
        if (color || size) {
			
			if (textarea.selectionStart < textarea.selectionEnd) {
				var pretext = textarea.value.substring(0, textarea.selectionStart);
                var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
                var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
                var string_to_write;
                
                string_to_write = '<font';
                if (color) { string_to_write = string_to_write +' color="' + color + '"'; }
                if (size) { string_to_write = string_to_write +' size="' + size +'"'; }
                string_to_write = string_to_write +'>' + selection + '</font>';
                
                textarea.value = pretext + string_to_write + posttext;
            } else {
				var str = prompt('Zadejte text: ', '');
				var string_to_write;
				
                string_to_write = '<font';
                if (color) { string_to_write = string_to_write +' color="' + color + '"'; }
                if (size) { string_to_write = string_to_write +' size="' + size +'"'; }
                string_to_write = string_to_write +'>' + str + '</font>';
                
                textarea.value = textarea.value + string_to_write;
            }            
        }
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function spoil(event) {
    try {
		if (textarea.selectionStart < textarea.selectionEnd) {
			var pretext = textarea.value.substring(0, textarea.selectionStart);
			var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
			var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
	                
			textarea.value = pretext + '*<font color="white">' + selection + '</font>*' + posttext;
        } else {
			var str = prompt('Zadejte text: ', '');
			var string_to_write;					
	                
			textarea.value = textarea.value + '*<font color="white">' + str + '</font>*';
        }            

        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function bold(event) {
    try {
        var pretext = textarea.value.substring(0, textarea.selectionStart);
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
        var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
        textarea.value = pretext + '<b>' + selection + '</b>' + posttext;
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function italic(event) {
    try {
        var pretext = textarea.value.substring(0, textarea.selectionStart);
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
        var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
        textarea.value = pretext + '<i>' + selection + '</i>' + posttext;
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function strike(event) {
    try {
        var pretext = textarea.value.substring(0, textarea.selectionStart);
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
        var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
        textarea.value = pretext + '<strike>' + selection + '</strike>' + posttext;
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}


function underline(event) {
    try {
        var pretext = textarea.value.substring(0, textarea.selectionStart);
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
        var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
        textarea.value = pretext + '<u>' + selection + '</u>' + posttext;
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function br(event) {
    try {
	var pretext = textarea.value.substring(0, textarea.selectionStart);
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
        var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
        textarea.value = pretext + '<br>' + selection + posttext;
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}



function code(event) {
    try {
        var pretext = textarea.value.substring(0, textarea.selectionStart);
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
        var selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd);
        textarea.value = pretext + '< r a w >' + selection + '</ r a w>' + posttext;
        textarea.focus();
        event.preventDefault();
    }
    catch(exception) {
        alert(exception.message);
    }
}

function gotopost(event) {
	var konec = adresa.indexOf("&");
	var cislo = document.getElementById('jdi_na_id').value; 
	
	if (konec >= 0) adresa = adresa.substring(0,konec);
	adresa = adresa + "&to=" + cislo;
	
	if (cislo!='') window.open(adresa,"_top");
	
	event.preventDefault();
}

function filter(event) {
	var zadani = textarea.value;
	
	var autor = '';
	var text = '';
	
	if (zadani[0]=='@') {
		var mezera = zadani.indexOf(' ');
		if (mezera>=0) {
			autor = zadani.substring(1,mezera);
			text = zadani.substring(mezera+1,zadani.length);		
		}
		else {autor = zadani.substring(1,zadani.length);}
	}
	else {text = zadani;}
	
	if (zadani!='')
	{	
		var istext = adresa.indexOf("&searchtext=");
			if (istext >= 0) adresa = adresa.substring(0,istext);
		var isauthor = adresa.indexOf("&author=");
			if (isauthor >= 0) adresa = adresa.substring(0,isauthor);
			
		if (text!='') {adresa = adresa + "&searchtext=" + text;}
		if (autor!='') {adresa = adresa + "&author=" + autor;}
		window.open(adresa,"_top");
	}
	
	event.preventDefault();
}

function nofilter(event) {
	var istext = adresa.indexOf("&searchtext=");
		if (istext >= 0) adresa = adresa.substring(0,istext);
	var isauthor = adresa.indexOf("&author=");
		if (isauthor >= 0) adresa = adresa.substring(0,isauthor);
	
	adresa = adresa + "&searchtext=&author=";	
	window.open(adresa,"_top");
	
	event.preventDefault();
}

function mouseover(event){
	if (domena != "nyx.cz") {
		this.style.border = "1px solid #808080";
		this.style.backgroundColor = "#E0E0E0";
	} else {
		this.style.border = "1px solid black";
		this.style.backgroundColor = "darkgray";
	}
	event.preventDefault();
}
function mouseout(event){
	if (domena != "nyx.cz") {
		this.style.border = "1px solid #A7A6AA";
		this.style.backgroundColor = "white";
	} else {
		this.style.border = "1px solid #808080";
		this.style.backgroundColor = "#E0E0E0";	
	}
	event.preventDefault();
}

function create_button(text, listener) {
    var button = document.createElement('button');
    var txt = document.createTextNode(text);

	button.style.font = "10pt Arial";
	
	if (domena != "nyx.cz") {
		button.style.border = "1px solid #A7A6AA";
		button.style.backgroundColor = "white";
	} else {
		button.style.border = "1px solid #808080";
		button.style.backgroundColor = "#E0E0E0";	
	}	

	button.style.cursor = "pointer";
	
	button.style.marginBottom = "2px";
	button.style.marginRight = "2px";

	switch (text) {
		case 'B': button.style.fontWeight = "bold";
				  break;
		case 'I': button.style.fontStyle = "italic";
				  break;
		case 'U': button.style.textDecoration = "underline";
				  break;
		case 'ST': button.style.textDecoration = "line-through";
				  break;
    }
    
    button.insertBefore(txt, null);
	button.addEventListener("mouseover", mouseover, false);
	button.addEventListener("mouseout", mouseout, false);
	
    button.addEventListener("click", listener, false);
    return button;
}

function create_id_input(listener) {
    var input = document.createElement('input');
    input.setAttribute('id','jdi_na_id');
    input.setAttribute('size','8');
    
    input.style.border = "1px solid #A7A6AA";
	input.style.backgroundColor = "white";

	input.style.height = "20px";
	if (navigator.userAgent.indexOf("Gecko") >= 0) input.style.marginBottom = "2px";
	
    input.addEventListener("keydown", function(event)
    {					
		if (!event.altKey && !event.ctrlKey &&!event.shiftKey && event.keyCode==13) listener(event);
	}, false);
	
	return input;
}

try {
    var textareas = document.getElementsByTagName("textarea");

  	if ((domena == "www.lopuch.cz") || (domena == "lopuch.cz") || (domena == "www.lapiduch.cz")) loporlap = true;
   
    if (textareas.length) {
    
        if (domena != "nyx.cz") textarea = textareas.item(0);
        else textarea = document.getElementById("message_box");
        
        if (loporlap) aftertextarea = textarea.nextSibling;
        
        textarea_parent = textarea.parentNode;
        if (wantb) { textarea_parent.insertBefore(create_button('B', bold), textarea); }
        if (wanti) { textarea_parent.insertBefore(create_button('I', italic), textarea); }
        if (wantu) { textarea_parent.insertBefore(create_button('U', underline), textarea); }
        if (wantst) { textarea_parent.insertBefore(create_button('ST', strike), textarea); }
	if (wantbr) { textarea_parent.insertBefore(create_button('BR', br), textarea); }

		textarea_parent.insertBefore(document.createTextNode('\xA0\xA0\xA0'), textarea);

        if (wanturl) { textarea_parent.insertBefore(create_button('URL', link), textarea); }
        if (wantimg) { textarea_parent.insertBefore(create_button('IMG', img), textarea); }
        if (wantfont) { textarea_parent.insertBefore(create_button('FONT', font), textarea); }
        if (wantspoil) { textarea_parent.insertBefore(create_button('SPOIL', spoil), textarea); }
        
		textarea_parent.insertBefore(document.createTextNode('\xA0\xA0\xA0'), textarea);
        
	

        if (wantcode) { textarea_parent.insertBefore(create_button('CODE', code), textarea); }

		if (loporlap) {
			if ((adresa.indexOf("klub.php")>=0) && (wantgoto)) {        
				textarea_parent.insertBefore(document.createTextNode('\xA0\xA0-\xA0\xA0'), textarea);
			
				textarea_parent.insertBefore(create_button('JDI NA: ', gotopost), textarea);
				textarea_parent.insertBefore(create_id_input(gotopost), textarea);
			}
        }

        textarea_parent.insertBefore(document.createElement('br'), textarea);        
        
		if (loporlap) {
			if ((wantfilter) || (wantnofilter)) {  
				textarea_parent.insertBefore(document.createElement('br'), aftertextarea);
			}
	        
			if ((adresa.indexOf("klub.php")>=0) && (wantfilter)) {  
				textarea_parent.insertBefore(create_button('FILTR', filter), aftertextarea);
			}
	        
			if ((adresa.indexOf("klub.php")>=0) && (wantnofilter)) {  
				textarea_parent.insertBefore(create_button('NEFILTROVAT', nofilter), aftertextarea);
			}
        }
        
        if (wantresize) {        
			textarea.rows = textarea.rows + addheight;
			textarea.cols = textarea.cols + addwidth;
        }
    }
}
catch(exception) {
    alert(exception.message);
}