ubb.js

转载： 1、留言内容不良词语过滤 2、版主可修改留言内容 3、能把留言删除到回收站 4、可批量删除留言 5、留言前可先预览 6、UBB 标签代码支持 7、随机选择头像和表情

// -----------------------------------------
//             UBB Codes
// -----------------------------------------

function insertText(str) {
	var oContent = findObj('content');
	if (oContent) {
		if (document.all) {
			insertAtCaret(oContent, str);
		} else {
			oContent.value += str;
		}
		oContent.focus();
	}
}

function insertAtCaret(textEl, text) {
	if (textEl.createTextRange && textEl.caretPos) {
		var caretPos = textEl.caretPos;
		caretPos.text += caretPos.text.charAt(caretPos.text.length - 2) == ' ' ? text + ' ' : text;
	} else if (textEl) {
		textEl.value += text;
	} else {
		textEl.value = text;
	}
	CountStrByte(this.form.content,this.form.used,this.form.remain)
}

function findObj(theObj, theDoc){
	var i, foundObj;
  
	if(!theDoc) theDoc = document;
	if(!(foundObj = theDoc[theObj]) && theDoc.all)
  		foundObj = theDoc.all[theObj];
	for (i=0; !foundObj && i < theDoc.forms.length; i++) 
    	foundObj = theDoc.forms[i][theObj];
	if(!foundObj && document.getElementById)
  		foundObj = document.getElementById(theObj);

	return foundObj;
}

function insertCode(code, option){
	var promptTitle;
	var promptValue;
	var codeBegin;
	var codeClose;
	var text;
	var text1;
	var Url = false;
	switch (code){
		case 'B':
			promptTitle = promptValue = "粗体文字";
			codeBegin = "[b]";
			codeClose = "[/b]";
		break;
		case 'I':
			promptTitle = promptValue = "斜体文字";
			codeBegin = "[i]";
			codeClose = "[/i]";
		break;
		case 'U':
			promptTitle = promptValue = "下划线文字";
			codeBegin = "[u]";
			codeClose = "[/u]";
		break;
		case 'IMG':
			promptTitle = "图象地址";
			promptValue = "http://";
			codeBegin = "[img]";
			codeClose = "[/img]";
		break;
		case 'URL':
			promptTitle = "超级链接";
			promptValue = "http://";
			codeBegin = "[url]";
			codeClose = "[/url]";
			Url = true;
		break;
		case 'EMAIL':
			promptTitle = "电子邮件";
			promptValue = "@";
			codeBegin = "[email]";
			codeClose = "[/email]";
		break;
		case 'FLY':
			promptTitle = promptValue = "飞行文字";
			codeBegin = "[fly]";
			codeClose = "[/fly]";
		break;
		case 'MOVE':
			promptTitle = promptValue = "滚动文字";
			codeBegin = "[move]";
			codeClose = "[/move]";
		break;
		case 'SHADOW':
			promptTitle = "阴影文字 (参数: shadow=颜色,方向,阴影大小)";
			promptValue = "阴影文字";
			codeBegin = "[shadow=green,45,2]";
			codeClose = "[/shadow]";
		break;
		case 'FONT' :
			promptTitle = "字体 (" +option+ ")";
			promptValue = option;
			codeBegin = "[font=" +option+ "]";
			codeClose = "[/font]";
		break;
		case 'COLOR' :
			promptTitle = "字体颜色 (" +option+ ")";
			promptValue = "颜色字";
			codeBegin = "[color=" +option+ "]";
			codeClose = "[/color]";
		break;
		default:
			text = code;
	}
	if(text){
		insertText(text);
	}else if(code && option!='false'){
		if(Url){
		txt1=prompt("YHPbook - 链接文本显示:\n如果不想使用, 可以为空, 将只显示超级链接地址. ","");
		if (txt1!=null) {
			txt=prompt("YHPbook - " + promptTitle + ": ",promptValue);
			if (txt!=null) {
				if (txt1 != "") {
					codeBegin="[url="+txt+"]";
					txt = txt1;
				}
				insertText(codeBegin + txt + codeClose);
			}
		}
		}else{
			txt = prompt( "YHPbook - " + promptTitle + ": ", promptValue);
			if (txt != null) {
				insertText(codeBegin + txt + codeClose);
			}
		}
	}
}