/* ***** BEGIN LICENSE BLOCK *****

 * This file is part of DotClear.

 * Copyright (c) 2004 Olivier Meunier and contributors. All rights

 * reserved.

 *

 * DotClear is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 * 

 * DotClear is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with DotClear; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * ***** END LICENSE BLOCK ***** */

 // apply tagOpen/tagClose to selection in textarea,

// use sampleText instead of selection if there is none

// copied and adapted from phpBB

function insertTags(tagOpen, tagClose, sampleText, nomFormulaire, nomTextarea) {



	var txtarea = document.forms[nomFormulaire].elements[nomTextarea];



	// IE

	if(document.selection  && !is_gecko) {

		var theSelection = document.selection.createRange().text;

		if(!theSelection) { theSelection=sampleText;}

		txtarea.focus();

		if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any

			theSelection = theSelection.substring(0, theSelection.length - 1);

			document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";

		} else {

			document.selection.createRange().text = tagOpen + theSelection + tagClose;

		}



	// Mozilla

	} else if(txtarea.selectionStart || txtarea.selectionStart == '0') {

 		var startPos = txtarea.selectionStart;

		var endPos = txtarea.selectionEnd;

		var scrollTop=txtarea.scrollTop;

		var myText = (txtarea.value).substring(startPos, endPos);

		if(!myText) { myText=sampleText;}

		if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any

			subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";

		} else {

			subst = tagOpen + myText + tagClose;

		}

		txtarea.value = txtarea.value.substring(0, startPos) + subst +

		  txtarea.value.substring(endPos, txtarea.value.length);

		txtarea.focus();



		var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);

		txtarea.selectionStart=cPos;

		txtarea.selectionEnd=cPos;

		txtarea.scrollTop=scrollTop;



	// All others

	} else {

		var copy_alertText=alertText;

		var re1=new RegExp("\\$1","g");

		var re2=new RegExp("\\$2","g");

		copy_alertText=copy_alertText.replace(re1,sampleText);

		copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);

		var text;

		if (sampleText) {

			text=prompt(copy_alertText);

		} else {

			text="";

		}

		if(!text) { text=sampleText;}

		text=tagOpen+text+tagClose;

		document.infoform.infobox.value=text;

		// in Safari this causes scrolling

		if(!is_safari) {

			txtarea.focus();

		}

		noOverwrite=true;

	}

	// reposition cursor if possible

	if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();

}





function dcWikiBar(textarea,img_path)

{

	this.addButton	= function() {}

	this.addSpace	= function() {}

	this.draw		= function() {}

	this.btStrong	= function() {}

	this.btEm		= function() {}

	this.btIns		= function() {}

	this.btDel		= function() {}

	this.btQ		= function() {}

	this.btCode		= function() {}

	this.btBr		= function() {}

	this.btBquote	= function() {}

	this.btPre		= function() {}

	this.btList		= function() {}

	this.btLink		= function() {}

	

	if (!document.createElement) {

		return;

	}

	

	if ((typeof(document["selection"]) == "undefined")

	&& (typeof(textarea["setSelectionRange"]) == "undefined")) {

		return;

	}

	

	var toolbar = document.createElement("div");

	toolbar.id = "dcwikibar";

	

	function addButton(src, title, fn) {

		var i = document.createElement('img');

		i.src = src;

		i.title = title;

		i.onclick = function() { try { fn() } catch (e) { } return false };

		i.tabIndex = 400;

		toolbar.appendChild(i);

		addSpace(2);

	}

	

	function addSpace(w)

	{

		s = document.createElement('span');

		s.style.padding='0 '+w+'px 0 0';

		s.appendChild(document.createTextNode(' '));

		toolbar.appendChild(s);

	}

	

	function encloseSelection(prefix, suffix, fn) {

		textarea.focus();

		var start, end, sel, scrollPos, subst;

		

		if (typeof(document["selection"]) != "undefined") {

			sel = document.selection.createRange().text;

		} else if (typeof(textarea["setSelectionRange"]) != "undefined") {

			start = textarea.selectionStart;

			end = textarea.selectionEnd;

			scrollPos = textarea.scrollTop;

			sel = textarea.value.substring(start, end);

		}

		

		if (sel.match(/ $/)) { // exclude ending space char, if any

			sel = sel.substring(0, sel.length - 1);

			suffix = suffix + " ";

		}

		

		if (typeof(fn) == 'function') {

			var res = (sel) ? fn(sel) : fn('');

		} else {

			var res = (sel) ? sel : '';

		}

		

		subst = prefix + res + suffix;

		

		if (typeof(document["selection"]) != "undefined") {

			var range = document.selection.createRange().text = subst;

			textarea.caretPos -= suffix.length;

		} else if (typeof(textarea["setSelectionRange"]) != "undefined") {

			textarea.value = textarea.value.substring(0, start) + subst +

			textarea.value.substring(end);

			if (sel) {

				textarea.setSelectionRange(start + subst.length, start + subst.length);

			} else {

				textarea.setSelectionRange(start + prefix.length, start + prefix.length);

			}

			textarea.scrollTop = scrollPos;

		}

	}

	

	function draw(msg) {

		p = document.createElement('em');

		p.style.display='block';

		p.style.margin='-0.5em 0 0.5em 0';

		p.appendChild(document.createTextNode(msg));

		textarea.parentNode.insertBefore(p, textarea);

		textarea.parentNode.insertBefore(toolbar, textarea);

	}

	

	

	// ---

	function singleTag(wtag,htag,wetag) {

		var stag = wtag;

		var etag = (wetag) ? wetag : wtag;

		encloseSelection(stag,etag);

	}

	

	function btStrong(label) {

		addButton(img_path+'bt_strong.png',label,

		function() { singleTag('__','strong'); });

	}

	

	function btEm(label) {

		addButton(img_path+'bt_em.png',label,

		function() { singleTag("''",'em'); });

	}

	

	function btIns(label) {

		addButton(img_path+'bt_ins.png',label,

		function() { singleTag('++','ins'); });

	}

	

	function btDel(label) {

		addButton(img_path+'bt_del.png',label,

		function() { singleTag('--','del'); });

	}

	

	function btQ(label) {

		addButton(img_path+'bt_quote.png',label,

		function() { singleTag('{{','q','}}'); });

	}

	

	function btCode(label) {

		addButton(img_path+'bt_code.png',label,

		function() { singleTag('@@','code'); });

	}

	

	function btBr(label) {

		addButton(img_path+'bt_br.png',label,

		function() {

			var tag = "%%%\n";

			encloseSelection('',tag);

		});

	}

		

	function btPre(label) {

		addButton(img_path+'bt_pre.png',label,

		function() {

			encloseSelection("\n",'',

			function(str) {

				str = str.replace(/\r/g,'');

				return ' '+str.replace(/\n/g,"\n ");

			});

		});

	}

	

	function btList(label,type) {

		var img = (type == 'ul') ? 'bt_ul.png' : 'bt_ol.png';

		var wtag = (type == 'ul') ? '*' : '#';

		

		addButton(img_path+img,label,

		function() {

			encloseSelection("",'',

			function(str) {

				str = str.replace(/\r/g,'');

				return wtag+' '+str.replace(/\n/g,"\n"+wtag+' ');

			});

		});

	}

	

	function btLink(label,msg_url,msg_lang,default_lang) {

		addButton(img_path+'bt_link.png',label,

		function() {

			var href = window.prompt(msg_url,'');

			if (!href) { return; }

			

			var hreflang = window.prompt(msg_lang,default_lang);

			

			stag = '[';

			var etag = '|'+href;

			if (hreflang) { etag = etag+'|'+hreflang; }

			etag = etag+']';

			

			encloseSelection(stag,etag);

		});

	}

		

	// methods

	this.addButton	= addButton;

	this.addSpace	= addSpace;

	this.draw		= draw;

	this.btStrong	= btStrong;

	this.btEm		= btEm;

	this.btIns		= btIns;

	this.btDel		= btDel;

	this.btQ		= btQ;

	this.btCode		= btCode;

	this.btBr		= btBr;

	this.btPre		= btPre;

	this.btList		= btList;

	this.btLink		= btLink;

}