// new edit toolbar used with permission
// by Alex King
// http://www.alexking.org/

/*
 *	IMPORTANT!!!
 *	This file is stored somewhere else .. I copied it here as a second copy because I'm not
 *	sure if my changes to trdp code are going through and I don't want to lose the changes
 *	I made to this file.
 */

var edButtons = new Array();
var edLinks = new Array();
var edOpenTags = new Array();

function edButton(id, display, tagStart, tagEnd, access, open) {
	this.id = id;				// used to name the toolbar button
	this.display = display;		// label on button
	this.tagStart = tagStart; 	// open tag
	this.tagEnd = tagEnd;		// close tag
	this.access = access;		// access key
	this.open = open;			// set to -1 if tag does not need to be closed
}

function zeroise(number, threshold) {
	// FIXME: or we could use an implementation of printf in js here
	var str = number.toString();
	if (number < 0) { str = str.substr(1, str.length) }
	while (str.length < threshold) { str = "0" + str }
	if (number < 0) { str = '-' + str }
	return str;
}

var now = new Date();
var datetime = now.getUTCFullYear() + '-' + 
zeroise(now.getUTCMonth() + 1, 2) + '-' +
zeroise(now.getUTCDate(), 2) + 'T' + 
zeroise(now.getUTCHours(), 2) + ':' + 
zeroise(now.getUTCMinutes(), 2) + ':' + 
zeroise(now.getUTCSeconds() ,2) +
'+00:00';

edButtons[edButtons.length] = 
new edButton('ed_strong'
	,'b'
	,'[B]'
	,'[/B]'
	,'b'
);

edButtons[edButtons.length] = 
new edButton('ed_em'
	,'i'
	,'[I]'
	,'[/I]'
	,'i'
);

edButtons[edButtons.length] = 
new edButton('ed_link'
	,'link'
	,''
	,'[/A]'
	,'a'
); // special case

/*
edButtons[edButtons.length] = 
new edButton('ed_block'
,'b-quote'
,'\n\n<blockquote>'
,'</blockquote>\n\n'
,'q'
);
*/

/*
edButtons[edButtons.length] = 
new edButton('ed_del'
,'del'
,'<del datetime="' + datetime + '">'
,'</del>'
,'d'
);
*/

/*
edButtons[edButtons.length] = 
new edButton('ed_ins'
,'ins'
,'<ins datetime="' + datetime + '">'
,'</ins>'
,'s'
);
*/

edButtons[edButtons.length] = 
new edButton('ed_img'
	,'img'
	,''
	,''
	,'m'
	,-1
); // special case

edButtons[edButtons.length] = 
new edButton('ed_ul'
	,'ul'
	,'[ULIST]\n'
	,'[/ULIST]\n\n'
	,'u'
);

edButtons[edButtons.length] = 
new edButton('ed_ol'
	,'ol'
	,'[OLIST]\n'
	,'[/OLIST]\n\n'
	,'o'
);

edButtons[edButtons.length] = 
new edButton('ed_li'
	,'li'
	,'\t[ELEMENT]'
	,'[/ELEMENT]\n'
	,'l'
);

edButtons[edButtons.length] = 
new edButton('ed_code'
	,'code'
	,'[CODE]'
	,'[/CODE]'
	,'c'
);

/*
edButtons[edButtons.length] = 
new edButton('ed_more'
,'more'
,'<!--more-->'
,''
,'t'
,-1
);
*/

/*
edButtons[edButtons.length] = 
new edButton('ed_next'
,'page'
,'<!--nextpage-->'
,''
,'p'
,-1
);
*/
function edLink() {
	this.display = '';
	this.URL = '';
	this.newWin = 0;
}

edLinks[edLinks.length] = new edLink('WordPress'
                                    ,'http://wordpress.org/'
                                    );

edLinks[edLinks.length] = new edLink('alexking.org'
                                    ,'http://www.alexking.org/'
                                    );

function edShowButton(button, i) {
	if (button.id == 'ed_img') {
		document.write('<input type="button" id="texteditorbutton' + i + '" accesskey="' + button.access + '" class="ed_button unclicked" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');
	}
	else if (button.id == 'ed_link') {
		document.write('<input type="button" id="texteditorbutton' + i + '" accesskey="' + button.access + '" class="ed_button unclicked" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
	}
	else {
		document.write('<input type="button" id="texteditorbutton' + i + '" accesskey="' + button.access + '" class="ed_button unclicked" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '"  />');
	}
}

function edShowLinks() {
	var tempStr = '<select onchange="edQuickLink(this.options[this.selectedIndex].value, this);"><option value="-1" selected>(Quick Links)</option>';
	for (i = 0; i < edLinks.length; i++) {
		tempStr += '<option value="' + i + '">' + edLinks[i].display + '</option>';
	}
	tempStr += '</select>';
	document.write(tempStr);
}

function edAddTag(button) {
	if (edButtons[button].tagEnd != '') {
		edOpenTags[edOpenTags.length] = button;
		document.getElementById('texteditorbutton'+button).value = '/' + document.getElementById('texteditorbutton'+button).value;

		//JEM 9/10/2k7
		attr = document.getElementById('texteditorbutton'+button).className;
		document.getElementById('texteditorbutton'+button).className = attr.replace(' unclicked', ' clicked');
		//END JEM
	}
}

function edRemoveTag(button) {
	for (i = 0; i < edOpenTags.length; i++) {
		if (edOpenTags[i] == button) {
			edOpenTags.splice(i, 1);
			document.getElementById('texteditorbutton'+button).value = 		document.getElementById('texteditorbutton'+button).value.replace('/', '');

			//JEM 9/10/2k7
			attr = document.getElementById('texteditorbutton'+button).className;
			document.getElementById('texteditorbutton'+button).className = attr.replace(' clicked', ' unclicked');
			//JEM 9/10/2k7
		}
	}
}

function edCheckOpenTags(button) {
	var tag = 0;
	for (i = 0; i < edOpenTags.length; i++) {
		if (edOpenTags[i] == button) {
			tag++;
		}
	}
	if (tag > 0) {
		return true; // tag found
	}
	else {
		return false; // tag not found
	}
}

function edCloseAllTags() {
	var count = edOpenTags.length;
	for (o = 0; o < count; o++) {
		edInsertTag(edCanvas, edOpenTags[edOpenTags.length - 1]);
	}
}

function edQuickLink(i, thisSelect) {
	if (i > -1) {
		var newWin = '';
		if (edLinks[i].newWin == 1) {
			newWin = ' target="_blank"';
		}
		var tempStr = '[A href="' + edLinks[i].URL + '"' + newWin + ']' 
		            + edLinks[i].display
		            + '[/A]';
		thisSelect.selectedIndex = 0;
		edInsertContent(edCanvas, tempStr);
	}
	else {
		thisSelect.selectedIndex = 0;
	}
}

function edSpell(myField) {
	var word = '';
	if (document.selection) {
		myField.focus();
	    var sel = document.selection.createRange();
		if (sel.text.length > 0) {
			word = sel.text;
		}
	}
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		if (startPos != endPos) {
			word = myField.value.substring(startPos, endPos);
		}
	}
	if (word == '') {
		word = prompt('Enter a word to look up:', '');
	}
	if (word !== null && /^\w[\w ]*$/.test(word)) {
		window.open('http://www.answers.com/' + escape(word));
	}
}


/*
 *	This function allows for a second toolbar to be added
 *	to a page and the buttons not overlap eachother's id numbers
 */
function edToolbar(startIndex, div_suffix) {
	if(startIndex == undefined) {
		startIndex = 0;
	}

	if(div_suffix == undefined) div_suffix="";

	document.write('<div id="ed_toolbar'+div_suffix+'">');
	howMany = edButtons.length;
	for (i = 0; i < howMany; i++) {
		edButtons[i+startIndex] = edButtons[i];
		edShowButton(edButtons[i+startIndex], i+startIndex);
	}
//	document.write('<input type="button" id="ed_spell" class="ed_button" onclick="edSpell(edCanvas);" title="Dictionary lookup" value="lookup" />');
//	document.write('<input type="button" id="ed_close" class="ed_button" onclick="edCloseAllTags();" title="Close all open tags" value="Close Tags" />');
//	edShowLinks(); // disabled by default
	document.write('</div>');
}

// insertion code

function edInsertTag(myField, i) {
	//IE support
	if (document.selection) {
		myField.focus();
	    sel = document.selection.createRange();
		if (sel.text.length > 0) {
			sel.text = edButtons[i].tagStart + sel.text + edButtons[i].tagEnd;
		}
		else {
			if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
				sel.text = edButtons[i].tagStart;
				edAddTag(i);
			}
			else {
				sel.text = edButtons[i].tagEnd;
				edRemoveTag(i);
			}
		}
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		var cursorPos = endPos;
		var scrollTop = myField.scrollTop;

		if (startPos != endPos) {
			myField.value = myField.value.substring(0, startPos)
			              + edButtons[i].tagStart
			              + myField.value.substring(startPos, endPos) 
			              + edButtons[i].tagEnd
			              + myField.value.substring(endPos, myField.value.length);
			cursorPos += edButtons[i].tagStart.length + edButtons[i].tagEnd.length;
		}
		else {
			if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
				myField.value = myField.value.substring(0, startPos) 
				              + edButtons[i].tagStart
				              + myField.value.substring(endPos, myField.value.length);
				edAddTag(i);
				cursorPos = startPos + edButtons[i].tagStart.length;
			}
			else {
				myField.value = myField.value.substring(0, startPos) 
				              + edButtons[i].tagEnd
				              + myField.value.substring(endPos, myField.value.length);
				edRemoveTag(i);
				cursorPos = startPos + edButtons[i].tagEnd.length;
			}
		}
		myField.focus();
		myField.selectionStart = cursorPos;
		myField.selectionEnd = cursorPos;
		myField.scrollTop = scrollTop;
	}
	else {
		if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
			myField.value += edButtons[i].tagStart;
			edAddTag(i);
		}
		else {
			myField.value += edButtons[i].tagEnd;
			edRemoveTag(i);
		}
		myField.focus();
	}
}

/*
function edInsertContent(myField, myValue) {
	//IE support
	if (document.selection) {
		myField.focus();
		sel = document.selection.createRange();
		sel.text = myValue;
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		myField.value = myField.value.substring(0, startPos)
		              + myValue 
                      + myField.value.substring(endPos, myField.value.length);
		myField.focus();
		myField.selectionStart = startPos + myValue.length;
		myField.selectionEnd = startPos + myValue.length;
	} else {
		myField.value += myValue;
		myField.focus();
	}
}
*/

function edInsertLink(myField, i, defaultValue) {
	if (!defaultValue) {
		defaultValue = 'http://';
	}
	if (!edCheckOpenTags(i)) {
		var URL = prompt('Enter the URL' ,defaultValue);
		if (URL) {
			edButtons[i].tagStart = '[A href="' + URL + '"]';
			edInsertTag(myField, i);
		}
	}
	else {
		edInsertTag(myField, i);
	}
}

function edInsertImage(myField) {
	var myValue = prompt('Enter the URL of the image', 'http://');
	if (myValue) {
		myValue = '[IMG src="' 
				+ myValue 
				+ '" alt="' + prompt('Enter a description of the image', '') 
				+ '" /]';
		edInsertContent(myField, myValue);
	}
}

function edInsertContent(myField, myValue) {
	//IE support
	if (document.selection) {
		myField.focus();
		sel = document.selection.createRange();
		sel.text = myValue;
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == "0") {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		myField.value = myField.value.substring(0, startPos)
					  + myValue 
					  + myField.value.substring(endPos, myField.value.length);
		myField.focus();
		myField.selectionStart = startPos + myValue.length;
		myField.selectionEnd = startPos + myValue.length;
	} else {
		myField.value += myValue;
		myField.focus();
	}
}