// new edit toolbar used with permission

// by Alex King

// http://www.alexking.org/



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'

,'<strong>'

,'</strong>'

,'b'

);



edButtons[edButtons.length] = 

new edButton('ed_em'

,'i'

,'<em>'

,'</em>'

,'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_branket'

,'branket'

,'&lt;'

,'&gt;'

,'h'

);



/*

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'

,'<ul>\n'

,'</ul>\n\n'

,'u'

);



edButtons[edButtons.length] = 

new edButton('ed_ol'

,'ol'

,'<ol>\n'

,'</ol>\n\n'

,'o'

);



edButtons[edButtons.length] = 

new edButton('ed_li'

,'li'

,'\t<li>'

,'</li>\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="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');

	}

	else if (button.id == 'ed_link') {

		document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');

	}

	else {

		document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '"  />');

	}

}



function edShowLinks() {

	var tempStr = '<select onchange="edQuickLink(this.options[this.selectedIndex].value, this);"><option value="-1" selected>' + quicktagsL10n.quickLinks + '</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(edButtons[button].id).value = '/' + document.getElementById(edButtons[button].id).value;

	}

}



function edRemoveTag(button) {

	for (i = 0; i < edOpenTags.length; i++) {

		if (edOpenTags[i] == button) {

			edOpenTags.splice(i, 1);

			document.getElementById(edButtons[button].id).value = 		document.getElementById(edButtons[button].id).value.replace('/', '');

		}

	}

}



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(quicktagsL10n.wordLookup, '');

	}

	if (word !== null && /^\w[\w ]*$/.test(word)) {

		window.open('http://www.answers.com/' + escape(word));

	}

}



function edToolbar() {

	document.write('<div id="ed_toolbar">');

	for (i = 0; i < edButtons.length; i++) {

		edShowButton(edButtons[i], i);

	}

	document.write('<input type="button" id="ed_spell" class="ed_button" onclick="edSpell(edCanvas);" title="' + quicktagsL10n.dictionaryLookup + '" value="' + quicktagsL10n.lookup + '" />');

	document.write('<input type="button" id="ed_close" class="ed_button" onclick="edCloseAllTags();" title="' + quicktagsL10n.closeAllOpenTags + '" value="' + quicktagsL10n.closeTags + '" />');

//	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(quicktagsL10n.enterURL, defaultValue);

		if (URL) {

			edButtons[i].tagStart = '<a href="' + URL + '">';

			edInsertTag(myField, i);

		}

	}

	else {

		edInsertTag(myField, i);

	}

}



function edInsertImage(myField) {

	var myValue = prompt(quicktagsL10n.enterImageURL, 'http://');

	if (myValue) {

		myValue = '<img src="' 

				+ myValue 

				+ '" alt="' + prompt(quicktagsL10n.enterImageDescription, '') 

				+ '" />';

		edInsertContent(myField, myValue);

	}

}