// 當前模式
var sCurrMode = null;
var bEditMode = null;

// 連接對象
var oLinkField = null;
var sBaseUrl = document.location.protocol + '//' + document.location.host ;

// 瀏覽器版本檢測
var BrowserInfo = new Object();
BrowserInfo.MajorVer = navigator.appVersion.match(/MSIE (.)/)[1] ;
BrowserInfo.MinorVer = navigator.appVersion.match(/MSIE .\.(.)/)[1] ;
BrowserInfo.IsIE55OrMore = BrowserInfo.MajorVer >= 6 || ( BrowserInfo.MajorVer >= 5 && BrowserInfo.MinorVer >= 5 ) ;

var yToolbars = new Array();  // 工具欄數(shù)組

// 當文檔完全調(diào)入時，進行初始化
var bInitialized = false;
$(function(){
	var i, s, curr;
	if (bInitialized) return;
	
	eWebEditor=document.getElementById("eWebEditor");
	
	// 初始每個工具欄
	for (i=0; i<document.body.all.length;i++){
		curr=document.body.all[i];
		if (curr.className == "yToolbar"){
			InitTB(curr);
		}
	}
	//關聯(lián)的字段
	oLinkField = parent.document.getElementsByName(sLinkFieldName)[0];	
	//獲取關聯(lián)字段的內(nèi)容
	ContentFlag = document.getElementById("ContentFlag");
	ContentEdit = document.getElementById("ContentEdit");
	ContentLoad = document.getElementById("ContentLoad");
	if (ContentFlag.value=="0") { 
		ContentEdit.value = oLinkField.value;
		ContentLoad.value = oLinkField.value;
		ContentFlag.value = "1";
	}
	//編輯器的模式及處理內(nèi)容
	setMode(config.InitMode);
	setLinkedField();
	eWebEditor.document.body.onpaste = onPaste ;	
})

// 初始化一個工具欄上的按鈕
function InitBtn(btn) {
	btn.onmouseover = BtnMouseOver;
	btn.onmouseout = BtnMouseOut;
	btn.onmousedown = BtnMouseDown;
	btn.onmouseup = BtnMouseUp;
	btn.ondragstart = YCancelEvent;
	btn.onselectstart = YCancelEvent;
	btn.onselect = YCancelEvent;
	btn.YUSERONCLICK = btn.onclick;
	btn.onclick = YCancelEvent;
	btn.YINITIALIZED = true;
	return true;
}

//Initialize a toolbar. 
function InitTB(y) {
	// Set initial size of toolbar to that of the handle
	y.TBWidth = 0;
		
	// Populate the toolbar with its contents
	if (! PopulateTB(y)) return false;
	
	// Set the toolbar width and put in the handle
	y.style.posWidth = y.TBWidth;
	
	return true;
}


// Hander that simply cancels an event
function YCancelEvent() {
	event.returnValue=false;
	event.cancelBubble=true;
	return false;
}

// Toolbar button onmouseover handler
function BtnMouseOver() {
	if (event.srcElement.tagName != "IMG") return false;
	var image = event.srcElement;
	var element = image.parentElement;
	
	// Change button look based on current state of image.
	if (image.className == "Ico") element.className = "BtnMouseOverUp";
	else if (image.className == "IcoDown") element.className = "BtnMouseOverDown";

	event.cancelBubble = true;
}

// Toolbar button onmouseout handler
function BtnMouseOut() {
	if (event.srcElement.tagName != "IMG") {
		event.cancelBubble = true;
		return false;
	}

	var image = event.srcElement;
	var element = image.parentElement;
	yRaisedElement = null;
	
	element.className = "Btn";
	image.className = "Ico";

	event.cancelBubble = true;
}

// Toolbar button onmousedown handler
function BtnMouseDown() {
	if (event.srcElement.tagName != "IMG") {
		event.cancelBubble = true;
		event.returnValue=false;
		return false;
	}

	var image = event.srcElement;
	var element = image.parentElement;

	element.className = "BtnMouseOverDown";
	image.className = "IcoDown";

	event.cancelBubble = true;
	event.returnValue=false;
	return false;
}

// Toolbar button onmouseup handler
function BtnMouseUp() {
	if (event.srcElement.tagName != "IMG") {
		event.cancelBubble = true;
		return false;
	}

	var image = event.srcElement;
	var element = image.parentElement;

	if (element.YUSERONCLICK) eval(element.YUSERONCLICK + "anonymous()");

	element.className = "BtnMouseOverUp";
	image.className = "Ico";

	event.cancelBubble = true;
	return false;
}

// Populate a toolbar with the elements within it
function PopulateTB(y) {
	var i, elements, element;

	// Iterate through all the top-level elements in the toolbar
	elements = y.children;
	for (i=0; i<elements.length; i++) {
		element = elements[i];
		if (element.tagName == "SCRIPT" || element.tagName == "!") continue;
		
		switch (element.className) {
		case "Btn":
			if (element.YINITIALIZED == null) {
				if (! InitBtn(element)) {
					alert("Problem initializing:" + element.id);
					return false;
				}
			}
			
			element.style.posLeft = y.TBWidth;
			y.TBWidth += element.offsetWidth + 1;
			break;
			
		case "TBGen":
			element.style.posLeft = y.TBWidth;
			y.TBWidth += element.offsetWidth + 1;
			break;
			
		case "TBHandle":
			element.style.posLeft = 2;
			y.TBWidth += element.offsetWidth + 7;
			break;
			
		default:
			alert("Invalid class: " + element.className + " on Element: " + element.id + " <" + element.tagName + ">");
			return false;
		}
	}

	y.TBWidth += 1;
	return true;
}


// 設置所屬表單的提交或reset事件
function setLinkedField() {
	if (! oLinkField) return ;
	var oForm = oLinkField.form ;	
	if (!oForm) return ;	
	// 附加reset、submit事件
	oForm.attachEvent("onreset", AttachReset) ;
	oForm.attachEvent("onsubmit", AttachSubmit) ;
	//附加AttachReset事件到resetEditor屬性上
	if (! oForm.resetEditor) oForm.resetEditor = new Array() ;
	oForm.resetEditor[oForm.resetEditor.length] = AttachReset ;
	if (! oForm.originalReset) {
		oForm.originalReset = oForm.reset ;
		oForm.reset = function() {
			if (this.resetEditor) {
				for (var i = 0 ; i < this.resetEditor.length ; i++) {
					this.resetEditor[i]() ;
				}
			}
			this.originalReset() ;
		}
	}
}

// 附加submit提交事件,大表單數(shù)據(jù)提交,遠程文件獲取,保存eWebEditor中的內(nèi)容
var bDoneAutoRemote = false;
function AttachSubmit() { 	
	var oForm = oLinkField.form ;
	if (!oForm) return;	
	
	var html = getHTML();		
	ContentEdit.value = html;
	if (sCurrMode=="TEXT"){
		html = HTMLEncode(html);
	}	
	if(oLinkField.value!=null){	
		oLinkField.value = html;
	}
} 

// 附加Reset事件
function AttachReset() {
	if (!bEditMode) setMode('EDIT');
	if(bEditMode){
		eWebEditor.document.body.innerHTML = ContentLoad.value;
	}else{
		eWebEditor.document.body.innerText = ContentLoad.value;
	}
}

// 粘貼時自動檢測是否來源于Word格式
function onPaste() {
	if (config.AutoDetectPasteFromWord && BrowserInfo.IsIE55OrMore) {		
		var sHTML = GetClipboardHTML() ;
		var re = /<\w[^>]* class="?MsoNormal"?/gi ;
		if ( re.test( sHTML ) )
		{
			if ( confirm( "你要粘貼的內(nèi)容好象是從Word中拷出來的，是否要先清除Word格式再粘貼？" ) )
			{
				cleanAndPaste( sHTML ) ;
				return false ;
			}
		}
	}
	else
		return true ;
}

function GetClipboardHTML() {
	var oDiv = document.getElementById("eWebEditor_Temp_HTML")	
	oDiv.innerHTML = "" ;	
	
	var oTextRange = document.body.createTextRange() ;
	oTextRange.moveToElementText(oDiv) ;
	oTextRange.execCommand("Paste") ;
	
	var sData = oDiv.innerHTML ;
	oDiv.innerHTML = "" ;
	
	return sData ;
}

function cleanAndPaste( html ) {
	// Remove all SPAN tags
	html = html.replace(/<\/?span[^>]*>/gi, "" );
	// Remove Class attributes
	html = html.replace(/<(\w[^>]*) class=([^ |>]*)([^>]*)/gi, "<$1$3") ;
	// Remove Style attributes
	html = html.replace(/<(\w[^>]*) style="([^"]*)"([^>]*)/gi, "<$1$3") ;
	// Remove Lang attributes
	html = html.replace(/<(\w[^>]*) lang=([^ |>]*)([^>]*)/gi, "<$1$3") ;
	// Remove XML elements and declarations
	html = html.replace(/<\\?\?xml[^>]*>/gi, "") ;
	// Remove Tags with XML namespace declarations: <o:p></o:p>
	html = html.replace(/<\/?\w+:[^>]*>/gi, "") ;
	// Replace the &nbsp;
	html = html.replace(/&nbsp;/, " " );
	// Transform <P> to <DIV>
	var re = new RegExp("(<p)([^>]*>.*?)(<\/p>)","gi") ;	
	// Different because of a IE 5.0 error
	html = html.replace( re, "<div$2</div>" ) ;
	
	insertHTML( html ) ;
}

// 在當前文檔位置插入.
function insertHTML(html) {
	if (!validateMode()) return;
	if (eWebEditor.document.selection.type.toLowerCase() != "none")
		eWebEditor.document.selection.clear() ;
	eWebEditor.document.selection.createRange().pasteHTML(html) ; 
}

// 設置編輯器的內(nèi)容
function setHTML(html) {
	if (!validateMode()) return;
	ContentEdit.value = html;
	if(bEditMode){
		eWebEditor.document.body.innerHTML = html;
	}else{
		eWebEditor.document.body.innerText = html;
	}
}

// 取編輯器的內(nèi)容