post.js

Discuz功能源码（开源）

/*
	[Discuz!] (C)2001-2009 Comsenz Inc.
	This is NOT a freeware, use is subject to license terms

	$RCSfile: post.js,v $
	$Revision: 1.27 $
	$Date: 2007/08/06 08:27:23 $
*/

var postSubmited = false;
var smdiv = new Array();
var codecount = '-1';
var codehtml = new Array();

function AddText(txt) {
	obj = $('postform').message;
	selection = document.selection;
	checkFocus();
	if(!isUndefined(obj.selectionStart)) {
		var opn = obj.selectionStart + 0;
		obj.value = obj.value.substr(0, obj.selectionStart) + txt + obj.value.substr(obj.selectionEnd);
	} else if(selection && selection.createRange) {
		var sel = selection.createRange();
		sel.text = txt;
		sel.moveStart('character', -strlen(txt));
	} else {
		obj.value += txt;
	}
}

function checkFocus() {
	var obj = typeof wysiwyg == 'undefined' || !wysiwyg ? $('postform').message : editwin;
	if(!obj.hasfocus) {
		obj.focus();
	}
}

function ctlent(event) {
	if(postSubmited == false && (event.ctrlKey && event.keyCode == 13) || (event.altKey && event.keyCode == 83) && $('postsubmit')) {
		if(in_array($('postsubmit').name, ['topicsubmit', 'replysubmit', 'editsubmit']) && !validate($('postform'))) {
			doane(event);
			return;
		}
		postSubmited = true;
		$('postsubmit').disabled = true;
		$('postform').submit();
	}
}

function ctltab(event) {
	if(event.keyCode == 9) {
		doane(event);
	}
}

function parseurl(str, mode, parsecode) {
	if(!parsecode) str= str.replace(/\s*\[code\]([\s\S]+?)\[\/code\]\s*/ig, function($1, $2) {return codetag($2);});
	str = str.replace(/([^>=\]"'\/]|^)((((https?|ftp):\/\/)|www\.)([\w\-]+\.)*[\w\-\u4e00-\u9fa5]+\.([\.a-zA-Z0-9]+|\u4E2D\u56FD|\u7F51\u7EDC|\u516C\u53F8)((\?|\/|:)+[\w\.\/=\?%\-&~`@':+!]*)+\.(jpg|gif|png|bmp))/ig, mode == 'html' ? '$1<img src="$2" border="0">' : '$1[img]$2[/img]');
	str = str.replace(/([^>=\]"'\/@]|^)((((https?|ftp|gopher|news|telnet|rtsp|mms|callto|bctp|ed2k|thunder|synacast):\/\/))([\w\-]+\.)*[:\.@\-\w\u4e00-\u9fa5]+\.([\.a-zA-Z0-9]+|\u4E2D\u56FD|\u7F51\u7EDC|\u516C\u53F8)((\?|\/|:)+[\w\.\/=\?%\-&~`@':+!#]*)*)/ig, mode == 'html' ? '$1<a href="$2" target="_blank">$2</a>' : '$1[url]$2[/url]');
	str = str.replace(/([^\w>=\]"'\/@]|^)((www\.)([\w\-]+\.)*[:\.@\-\w\u4e00-\u9fa5]+\.([\.a-zA-Z0-9]+|\u4E2D\u56FD|\u7F51\u7EDC|\u516C\u53F8)((\?|\/|:)+[\w\.\/=\?%\-&~`@':+!#]*)*)/ig, mode == 'html' ? '$1<a href="$2" target="_blank">$2</a>' : '$1[url]$2[/url]');
	str = str.replace(/([^\w->=\]:"'\.\/]|^)(([\-\.\w]+@[\.\-\w]+(\.\w+)+))/ig, mode == 'html' ? '$1<a href="mailto:$2">$2</a>' : '$1[email]$2[/email]');
	if(!parsecode) {
		for(var i = 0; i <= codecount; i++) {
			str = str.replace("[\tDISCUZ_CODE_" + i + "\t]", codehtml[i]);
		}
	}
	return str;
}

function codetag(text) {
	codecount++;
	if(typeof wysiwyg != 'undefined' && wysiwyg) text = text.replace(/<br[^\>]*>/ig, '\n').replace(/<(\/|)[A-Za-z].*?>/ig, '');
	codehtml[codecount] = '[code]' + text + '[/code]';
	return '[\tDISCUZ_CODE_' + codecount + '\t]';
}

function checklength(theform) {
	var message = wysiwyg ? html2bbcode(getEditorContents()) : (!theform.parseurloff.checked ? parseurl(theform.message.value) : theform.message.value);
	var showmessage = postmaxchars != 0 ? '系统限制: ' + postminchars + ' 到 ' + postmaxchars + ' 字节' : '';
	alert('\n当前长度: ' + mb_strlen(message) + ' 字节\n\n' + showmessage);
}

if(!tradepost) {
	var tradepost = 0;
}

function validate(theform) {
	var message = wysiwyg ? html2bbcode(getEditorContents()) : (!theform.parseurloff.checked ? parseurl(theform.message.value) : theform.message.value);
	if(($('postsubmit').name != 'replysubmit' && !($('postsubmit').name == 'editsubmit' && !isfirstpost) && theform.subject.value == "") || !sortid && !special && message == "") {
		dalert('请完成标题或内容栏。');
		return false;
	} else if(mb_strlen(theform.subject.value) > 80) {
		dalert('您的标题超过 80 个字符的限制。');
		return false;
	}
	if(tradepost) {
		if(theform.item_name.value == '') {
			dalert('对不起，请输入商品名称。');
			return false;
		} else if(theform.item_price.value == '') {
			dalert('对不起，请输入商品现价。');
			return false;
		} else if(!parseInt(theform.item_price.value)) {
			dalert('对不起，商品现价必须为有效数字。');
			return false;
		} else if(theform.item_costprice.value != '' && !parseInt(theform.item_costprice.value)) {
			dalert('对不起，商品原价必须为有效数字。');
			return false;
		} else if(theform.item_number.value != '0' && !parseInt(theform.item_number.value)) {
			dalert('对不起，商品数量必须为数字。');
			theform.item_number.focus();
			return false;
		}
	}
	if(in_array($('postsubmit').name, ['topicsubmit', 'editsubmit'])) {
		if(theform.typeid && (theform.typeid.options && theform.typeid.options[theform.typeid.selectedIndex].value == 0) && typerequired) {
			dalert('请选择主题对应的分类。');
			return false;
		}
		if(special == 3 && isfirstpost) {
			if(theform.rewardprice.value == "") {
				dalert('对不起，请输入悬赏积分。');
				return false;
			}
		} else if(special == 4 && isfirstpost) {
			if(theform.activityclass.value == "") {
				dalert('对不起，请输入活动所属类别。');
				return false;
			} else if($('starttimefrom_0').value == "" && $('starttimefrom_1').value == "") {
				dalert('对不起，请输入活动开始时间。');
				return false;
			} else if(theform.activityplace.value == "") {
				dalert('对不起，请输入活动地点。');
				return false;
			}
		} else if(special == 6 && isfirstpost && $('postsubmit').name == 'topicsubmit') {
			if(theform.vid.value == '') {
				dalert('您还没有上传视频，或者视频还在上传中，请稍侯重试。');
				return false;
			} else if(theform.vsubject.value == '') {
				dalert('没有添加视频主题。');
				return false;
			} else if(theform.vtag.value == '') {
				dalert('没有填写视频标签');
				return false;
			} else if($('vclass') == '') {
				dalert('请您选择视频所属分类。');
				return false;
			}
		}
	}

	if(!disablepostctrl && !sortid && !special && ((postminchars != 0 && mb_strlen(message) < postminchars) || (postmaxchars != 0 && mb_strlen(message) > postmaxchars))) {
		alert('您的帖子长度不符合要求。\n\n当前长度: ' + mb_strlen(message) + ' 字节\n系统限制: ' + postminchars + ' 到 ' + postmaxchars + ' 字节');
		return false;
	}
	theform.message.value = message;
	if($('postsubmit').name == 'editsubmit') {
		if(!infloat) {
			return true;
		} else {
			ajaxpost('postform', 'returnmessage', 'returnmessage', 'onerror', $('postsubmit'));
		}
	} else if(in_array($('postsubmit').name, ['topicsubmit', 'replysubmit'])) {
		seccheck(theform, seccodecheck, secqaacheck);
		return false;
	}
}

function seccheck(theform, seccodecheck, secqaacheck) {
	if(seccodecheck || secqaacheck) {
		var url = 'ajax.php?inajax=1&action=';
		if(seccodecheck) {
			var x = new Ajax();
			x.get(url + 'checkseccode&seccodeverify=' + (is_ie && document.charset == 'utf-8' ? encodeURIComponent($('seccodeverify').value) : $('seccodeverify').value), function(s) {
				if(s != 'succeed') {
					dalert(s);
					$('seccodeverify').focus();
				} else if(secqaacheck) {
					checksecqaa(url, theform);
				} else {
					postsubmit(theform);
				}
			});
		} else if(secqaacheck) {
			checksecqaa(url, theform);
		}
	} else {
		postsubmit(theform);
	}
}

function checksecqaa(url, theform) {
	var x = new Ajax();
	var secanswer = $('secanswer').value;
	secanswer = is_ie && document.charset == 'utf-8' ? encodeURIComponent(secanswer) : secanswer;
	x.get(url + 'checksecanswer&secanswer=' + secanswer, function(s) {
		if(s != 'succeed') {
			dalert(s);
			$('secanswer').focus();
		} else {
			postsubmit(theform);
		}
	});
}

function postsubmit(theform) {
	theform.replysubmit ? theform.replysubmit.disabled = true : (theform.editsubmit ? theform.editsubmit.disabled = true : theform.topicsubmit.disabled = true);
	if(!infloat) {
		theform.submit();
	} else {
		ajaxpost('postform', 'returnmessage', 'returnmessage', 'onerror', $('postsubmit'));
	}
}

function loadData(quiet) {
	var message = '';
	if(is_ie) {
		try {
			textobj.load('Discuz!');
			var oXMLDoc = textobj.XMLDocument;
			var nodes = oXMLDoc.documentElement.childNodes;
			message = nodes.item(nodes.length - 1).getAttribute('message');
		} catch(e) {}
	} else if(window.sessionStorage) {
		try {
			message = sessionStorage.getItem('Discuz!');
		} catch(e) {}
	}
	message = message.toString();

	if(in_array((message = trim(message)), ['', 'null', 'false', null, false])) {
		if(!quiet) {
			alert('没有可以恢复的数据！');
		}
		return;
	}

	if(!quiet && !confirm('此操作将覆盖当前帖子内容，确定要恢复数据吗？')) {
		return;
	}

	var formdata = message.split(/\x09\x09/);
	for(var i = 0; i < $('postform').elements.length; i++) {
		var el = $('postform').elements[i];
		if(el.name != '' && (el.tagName == 'TEXTAREA' || el.tagName == 'INPUT' && (el.type == 'text' || el.type == 'checkbox' || el.type == 'radio'))) {
			for(var j = 0; j < formdata.length; j++) {
				var ele = formdata[j].split(/\x09/);
				if(ele[0] == el.name) {
					elvalue = !isUndefined(ele[3]) ? ele[3] : '';
					if(ele[1] == 'INPUT') {
						if(ele[2] == 'text') {
							el.value = elvalue;
						} else if((ele[2] == 'checkbox' || ele[2] == 'radio') && ele[3] == el.value) {
							el.checked = true;
							evalevent(el);
						}
					} else if(ele[1] == 'TEXTAREA') {
						if(ele[0] == 'message') {
							if(typeof wysiwyg == 'undefined' || !wysiwyg) {
								textobj.value = elvalue;
							} else {
								editdoc.body.innerHTML = bbcode2html(elvalue);
							}
						} else {
							el.value = elvalue;
						}
					}
					break
				}
			}
		}
	}
}

var autosaveDatai, autosaveDatatime;
function autosaveData(op) {
	var autosaveInterval = 60;
	obj = $(editorid + '_cmd_autosave');
	if(op) {
		if(op == 2) {
			saveData(wysiwyg ? editdoc.body.innerHTML : textobj.value);
		} else {
			setcookie('disableautosave', '', -2592000);
		}
		autosaveDatatime = autosaveInterval;
		autosaveDatai = setInterval(function() {
			autosaveDatatime--;
			if(autosaveDatatime == 0) {
				saveData(wysiwyg ? editdoc.body.innerHTML : textobj.value);
				autosaveDatatime = autosaveInterval;
			}
			if($('autsavet')) {
				$('autsavet').innerHTML = '(' + autosaveDatatime + '秒' + ')';
			}
		}, 1000);
		obj.onclick = function() { autosaveData(0); }
	} else {
		setcookie('disableautosave', 1, 2592000);
		clearInterval(autosaveDatai);
		$('autsavet').innerHTML = '(已停止)';
		obj.onclick = function() { autosaveData(1); }
	}
}

function evalevent(obj) {
	var script = obj.parentNode.innerHTML;
	var re = /onclick="(.+?)["|>]/ig;
	var matches = re.exec(script);
	if(matches != null) {
		matches[1] = matches[1].replace(/this\./ig, 'obj.');
		eval(matches[1]);
	}
}

function saveData(data, del) {
	if(!data && isUndefined(del)) {
		return;
	}
	if(typeof wysiwyg != 'undefined' && typeof editorid != 'undefined' && $(editorid + '_mode') && $(editorid + '_mode').value == 1) {
		data = html2bbcode(data);
	}
	var formdata = '';
	if(isUndefined(del)) {
		for(var i = 0; i < $('postform').elements.length; i++) {
			var el = $('postform').elements[i];
			if(el.name != '' && (el.tagName == 'TEXTAREA' || el.tagName == 'INPUT' && (el.type == 'text' || el.type == 'checkbox' || el.type == 'radio')) && el.name.substr(0, 6) != 'attach') {
				var elvalue = el.name == 'message' ? data : el.value;
				if((el.type == 'checkbox' || el.type == 'radio') && !el.checked) {
					continue;
				}
				formdata += el.name + String.fromCharCode(9) + el.tagName + String.fromCharCode(9) + el.type + String.fromCharCode(9) + elvalue + String.fromCharCode(9, 9);
			}
		}
	}
	if(is_ie) {
		try {
			var oXMLDoc = textobj.XMLDocument;
			var root = oXMLDoc.firstChild;
			if(root.childNodes.length > 0) {
				root.removeChild(root.firstChild);
			}
			var node = oXMLDoc.createNode(1, 'POST', '');
			var oTimeNow = new Date();
			oTimeNow.setHours(oTimeNow.getHours() + 24);
			textobj.expires = oTimeNow.toUTCString();
			node.setAttribute('message', formdata);
			oXMLDoc.documentElement.appendChild(node);
			textobj.save('Discuz!');
		} catch(e) {}
	} else if(window.sessionStorage) {
		try {
			sessionStorage.setItem('Discuz!', formdata);
		} catch(e) {}
	}
}

function deleteData() {
	if(is_ie) {
		saveData('', 'delete');
	} else if(window.sessionStorage) {
		try {
			sessionStorage.removeItem('Discuz!');
		} catch(e) {}
	}
}

function setCaretAtEnd() {
	if(typeof wysiwyg != 'undefined' && wysiwyg) {
		editdoc.body.innerHTML += '';
	} else {
		editdoc.value += '';
	}
}

function relatekw(subject, message, recall) {
	if(isUndefined(recall)) recall = '';
	if(isUndefined(subject) || subject == -1) subject = $('subject').value;
	if(isUndefined(message) || message == -1) message = getEditorContents();
	subject = (is_ie && document.charset == 'utf-8' ? encodeURIComponent(subject) : subject);
	message = (is_ie && document.charset == 'utf-8' ? encodeURIComponent(message) : message);
	message = message.replace(/&/ig, '', message).substr(0, 500);
	ajaxget('relatekw.php?subjectenc=' + subject + '&messageenc=' + message, 'tagselect', '', '', '', recall);
}

function dalert(s) {
	if(!infloat) {
		alert(s);
	} else {
		$('returnmessage').className = 'onerror';
		$('returnmessage').innerHTML = s;
		messagehandle();
	}
}

function pagescrolls(op) {
	if(!infloat && op.substr(0, 6) == 'credit') {
		window.open('faq.php?action=credits&fid=' + fid);
		return;
	}
	switch(op) {
		case 'credit1':hideMenu();$('moreconf').style.display = 'none';$('extcreditbox1').innerHTML = $('extcreditbox').innerHTML;pagescroll.left();break;
		case 'credit2':$('moreconf').style.display = 'none';$('extcreditbox2').innerHTML = $('extcreditbox').innerHTML;pagescroll.left();break;
		case 'credit3':hideMenu();$('moreconf').style.display = 'none';$('extcreditbox3').innerHTML = $('extcreditbox').innerHTML;pagescroll.left();break;
		case 'return':if(!Editorwin) {hideMenu();$('custominfoarea').style.display=$('more_2').style.display='none';pagescroll.up(1, '$(\'more_1\').style.display=\'\'');}break;
		case 'creditreturn':pagescroll.right(1, '$(\'moreconf\').style.display = \'\';');break;
		case 'swf':hideMenu();$('moreconf').style.display = 'none';swfHandler(3);break;
		case 'swfreturn':$('swfbox').style.display = 'none';if(!Editorwin) {pagescroll.left(1, '$(\'moreconf\').style.display = \'\';');}swfHandler(2);break;
		case 'more':hideMenu();pagescroll.down(1, '$(\'more_1\').style.display=$(\'more_2\').style.display=$(\'custominfoarea\').style.display=\'none\'');break;
		case 'editorreturn':$('more_1').style.display='none';pagescroll.up(1, '$(\'more_2\').style.display=$(\'custominfoarea\').style.display=\'\'');break;
		case 'editor':$('more_1').style.display='none';pagescroll.down(1, '$(\'more_2\').style.display=\'\';$(\'custominfoarea\').style.display=\'\'');break;
	}
}

function switchicon(iconid, obj) {
	$('iconid').value = iconid;
	$('icon_img').src = obj.src;
	hideMenu();
}

var swfuploaded = 0;
function swfHandler(action) {
	if(action == 1) {
		swfuploaded = 1;
	} else if(action == 2) {
		if(Editorwin || !infloat) {
			swfuploadwin();
		} else {
			pagescroll.left(1, '$(\'moreconf\').style.display=\'\';');