// 當前模式
var sCurrMode = null;
var bEditMode = null;
// 連接對象
var oLinkField = null;

// 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 ) ;
config.IsSP2 = (navigator.userAgent.indexOf("SV1") != -1);

var yToolbars = new Array();

var bInitialized = false;
function document.onreadystatechange(){
	if (document.readyState!="complete") return;
	if (bInitialized) return;
	bInitialized = true;

	var i, s, curr;

	for (i=0; i<document.body.all.length;i++){
		curr=document.body.all[i];
		if (curr.className == "yToolbar"){
			InitTB(curr);
			yToolbars[yToolbars.length] = curr;
		}
	}

	oLinkField = parent.document.getElementsByName(sLinkFieldName)[0];

	if (!BrowserInfo.IsIE55OrMore){
		config.InitMode = "TEXT";
	}
	
	if (ContentFlag.value=="0") { 
		ContentEdit.value = oLinkField.value;
		ContentLoad.value = oLinkField.value;
		ModeEdit.value = config.InitMode;
		ContentFlag.value = "1";
	}

	setMode(ModeEdit.value);
	setLinkedField() ;
}

// 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 "TBSep":
			element.style.posLeft = y.TBWidth + 2;
			y.TBWidth += 5;
			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submit事件
	oForm.attachEvent("onsubmit", AttachSubmit);
	if (! oForm.doneAutoRemote) oForm.doneAutoRemote = 0 ;

	if (! oForm.submitEditor) oForm.submitEditor = new Array() ;
	oForm.submitEditor[oForm.submitEditor.length] = AttachSubmit ;
	if (! oForm.originalSubmit) {
		oForm.originalSubmit = oForm.submit ;
		oForm.submit = function() {
			if (this.submitEditor) {
				for (var i = 0 ; i < this.submitEditor.length ; i++) {
					this.submitEditor[i]() ;
				}
			}
			this.originalSubmit() ;
		}
	}
	// 附加reset事件
	oForm.attachEvent("onreset", AttachReset) ;
	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,大表單數據提交,遠程文件獲取,保存eWebEditor中的內容
var bDoneAutoRemote = false;
function AttachSubmit() { 
	var oForm = oLinkField.form ;
	if (!oForm) return;	
	if ((config.AutoRemote=="1")&&(!bDoneAutoRemote)){
		parent.event.returnValue = false;
		bDoneAutoRemote = true;
		remoteUpload();
	} else {
		var html = getHTML();
		ContentEdit.value = html;
		if (sCurrMode=="TEXT"){
			html = HTMLEncode(html);
		}
		splitTextField(oLinkField, html);
	}
	//return true
} 

// 提交表單
function doSubmit(){
	var oForm = oLinkField.form ;
	if (!oForm) return ;
	oForm.submit();
}

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

// 顯示幫助
function onHelp(){
	ShowDialog('dialog/help.htm','400','300');
	return false;
}

// 粘貼時自動檢測是否來源于Word格式
function onPaste() {
	if (sCurrMode=="VIEW") return false;

	if (sCurrMode=="EDIT"){
		var sHTML = GetClipboardHTML() ;
		if (config.AutoDetectPasteFromWord && BrowserInfo.IsIE55OrMore) {
			var re = /<\w[^>]* class="?MsoNormal"?/gi ;
			if ( re.test(sHTML)){
				if ( confirm( "你要粘貼的內容好象是從Word中拷出來的，是否要先清除Word格式再粘貼？" ) ){
					cleanAndPaste( sHTML ) ;
					return false ;
				}
			}
		}
		eWebEditor.document.selection.createRange().pasteHTML(sHTML) ;
		return false;
	}else{
		eWebEditor.document.selection.createRange().pasteHTML(HTMLEncode( clipboardData.getData("Text"))) ;
		return false;
	}
	
}

// 快捷鍵
function onKeyDown(event){
	var key = String.fromCharCode(event.keyCode).toUpperCase();

	// F2:顯示或隱藏指導方針
	if (event.keyCode==113){
		showBorders();
		return false;
	}
	if (event.ctrlKey){
		// Ctrl+Enter:提交
		if (event.keyCode==10){
			doSubmit();
			return false;
		}
		// Ctrl++:增加編輯區
		if (key=="+"){
			sizeChange(300);
			return false;
		}
		// Ctrl+-:減小編輯區
		if (key=="-"){
			sizeChange(-300);
			return false;
		}
		// Ctrl+1:代碼模式
		if (key=="1"){
			setMode("CODE");
			return false;
		}
		// Ctrl+2:設計模式
		if (key=="2"){
			setMode("EDIT");
			return false;
		}
		// Ctrl+3:純文本
		if (key=="3"){
			setMode("TEXT");
			return false;
		}
		// Ctrl+4:預覽
		if (key=="4"){
			setMode("VIEW");
			return false;
		}
	}

	switch(sCurrMode){
	case "VIEW":
		return true;
		break;
	case "EDIT":
		if (event.ctrlKey){
			// Ctrl+D:從Word粘貼
			if (key == "D"){
				PasteWord();
				return false;
			}
			// Ctrl+R:查找替換