/*
 *
 *
 *
 */
 
function NP_znSmiley(previewFlag, sendUrl) {
	this.previewFlag      = previewFlag;
	this.sendUrl          = sendUrl;
	this.sendCounter      = 0;
	this.sendStr          = "";
	var znsmiley_tgtform  = document.getElementById('nucleus_cf_body');
	znsmiley_tgtform.pIns = this;
	//--------------------
	// onKeyup event
	//--------------------
	znsmiley_tgtform.onkeyup = function()
	{
		if (this.pIns.previewFlag) this.pIns.timelagSendPreviewRequest(this.value);
	}
}

NP_znSmiley.prototype = {
	//--------------------
	// receiver
	//--------------------
	on_loaded1: function(oj)
	{
		var res = decodeURIComponent(oj.responseText);
		document.getElementById("znSmiley_preview").innerHTML = res;
		document.getElementById('znsmiley_load').style.display = 'none';
	}, 
	//--------------------
	// preview request
	//--------------------
	sendPreviewRequest: function()
	{
		document.getElementById('znsmiley_load').style.display = 'inline';
		sendRequest(
			this.on_loaded1, 
			'&action=plugin&name=znSmiley&body=' + this.URLencode(this.sendStr), 
			'POST', 
			this.sendUrl, 
			true, 
			true
		);
	}, 
	//--------------------
	// timelag
	//--------------------
	timelagSendPreviewRequest: function(str)
	{
		this.sendStr = str;
		this.sendCounter++;
		setTimeout('znSmiley.sendTimer()', 3000); //3s
	}, 
	//--------------------
	// sendTimer
	//--------------------
	sendTimer: function()
	{
		this.sendCounter--;
		if (this.sendCounter == 0) this.sendPreviewRequest();
	}, 
	//--------------------
	// add icon
	//--------------------
	addSmiley: function(sm)
	{
		var tgt = document.getElementById('nucleus_cf_body');
		if (document.selection) {
			//IE
			tgt.focus();
			sel = document.selection.createRange();
			sel.text = sm;
		} else if (tgt.selectionStart == '0' || tgt.selectionStart) {
			//Mozilla
			var sPos = tgt.selectionStart;
			var ePos = tgt.selectionEnd;
			tgt.value = tgt.value.substring(0, sPos) + sm + tgt.value.substring(ePos, tgt.value.length);
		} else {
			//Other
			tgt.value += sm;
		}
		if (this.previewFlag) this.timelagSendPreviewRequest(tgt.value);
	}, 
	//--------------------
	// collapsed
	//--------------------
	dispSmiley: function(e, flag)
	{
		document.getElementById('znsmiley_disp' ).style.display = (flag) ? 'none'   : 'inline';
		document.getElementById('znsmiley_none' ).style.display = (flag) ? 'inline' : 'none';
		document.getElementById('znsm_ico_layer').style.display = (flag) ? 'block'  : 'none';
	}, 
	//--------------------
	// URLencode
	//--------------------
	URLencode: function(str)
	{
		// Unicode to URL encoded UTF-8
		var i, encoded_str, char_code, padded_str;
		encoded_str = "";
		for (i = 0; i < str.length; i++){
			char_code = str.charCodeAt(i);
			if (char_code == 0x20){
				// space -> "+"
				encoded_str += "+";
			} else { // else 1
				if (((0x30 <= char_code) && (char_code <= 0x39)) || ((0x41 <= char_code) && (char_code <= 0x5a)) || ((0x61 <= char_code) && (char_code <= 0x7a))){
					// [0-9a-z-A-Z]
					// no escape
					encoded_str += str.charAt(i);
				} else if ((char_code == 0x2a) || (char_code == 0x2e) || (char_code == 0x2d) || (char_code == 0x5f)) {
					// [.-_]
					// no escape
					encoded_str += str.charAt(i);
				} else { // else 2
					// for internal unicode to UTF-8
					// Ref. http://homepage3.nifty.com/aokura/jscript/utf8.html
					// Ref. http://homepage1.nifty.com/nomenclator/unicode/ucs_utf.htm
					if ( char_code > 0xffff ) {
						encoded_str += "%" + ((char_code >> 18) | 0xf0).toString(16).toUpperCase();
						encoded_str += "%" + (((char_code >> 12) & 0x3f) | 0x80).toString(16).toUpperCase();
						encoded_str += "%" + (((char_code >> 6) & 0x3f) | 0x80).toString(16).toUpperCase();
						encoded_str += "%" + ((char_code & 0x3f) | 0x80).toString(16).toUpperCase();
					} else if ( char_code > 0x7ff ) {
						encoded_str += "%" + ((char_code >> 12) | 0xe0).toString(16).toUpperCase();
						encoded_str += "%" + (((char_code >> 6) & 0x3f) | 0x80).toString(16).toUpperCase();
						encoded_str += "%" + ((char_code & 0x3f) | 0x80).toString(16).toUpperCase();
					} else if ( char_code > 0x7f ) {
						encoded_str += "%" + (((char_code >> 6) & 0x1f) | 0xc0).toString(16).toUpperCase();
						encoded_str += "%" + ((char_code & 0x3f) | 0x80).toString(16).toUpperCase();
					} else {
						// for ascii
						padded_str = "0" + char_code.toString(16).toUpperCase();
						encoded_str += "%" + padded_str.substr(padded_str.length - 2, 2);
					}
				} // else 2
			} // else 1
		} // for
		return encoded_str;
	}
}