/********************************************************
   파일명 : pagenavigator.js
   설  명 : 시군구 행정종합정보시스템 공통개발1팀 JavaScript
   작성자 : 이광진
   작성일 : 2006.04.24
   수정일 : 2006.04.24
*********************************************************/
var DEFAULT_PAGEUNIT = 20; 
var DEFAULT_PAGESIZE = 20;
var PAGE_GROUP_ID = "grp_pagenavigator";
var PAGE_ROOT = "/root/pagenavInfo/";
var SEMICOLON = ";";
var cnt = 0;
var PAGE_MSG = "해당페이지에 goPage()가 구현되지 않았습니다.\n확인해 주시기 바랍니다.";

String.prototype.trim = function() {
	var pattern = !arguments[0] ? /^\s+|\s+$/g : new RegExp('^['+arguments[0]+']+|['+arguments[0]+']+$', 'g')
	return this.replace(pattern, '')
}

function  CMMPageNavigator(id){
	var pageIndex = model.getValue(PAGE_ROOT + "pageIndex")=='' ? "1" : model.getValue(PAGE_ROOT + "pageIndex");
	var totalSize = model.getValue(PAGE_ROOT + "totalSize")=='' ? "0" : model.getValue(PAGE_ROOT + "totalSize");
	var pageUnit = model.getValue(PAGE_ROOT + "pageUnit")=='' ? DEFAULT_PAGEUNIT : model.getValue(PAGE_ROOT + "pageUnit");
	var pageSize = model.getValue(PAGE_ROOT + "pageSize")=='' ? DEFAULT_PAGESIZE : model.getValue(PAGE_ROOT + "pageSize");
//	alert(pageIndex+"/"+totalSize+"/"+pageUnit+"/"+pageSize);
	if(id!=null) {
		id.text= pageIndex + "/" + (parseInt((totalSize - 1) / pageSize) + 1) + " (총 " + totalSize + "건)";
		id.attribute("text-align") = "right";
		id.attribute("vertical-align") = "middle";
		id.attribute("class") = "page_info";
	}
	CMMRemoveNavigator();
	CMMMakeNavigator(new Page(pageIndex, totalSize, pageUnit, pageSize));
}

function CMMRemoveNavigator() {
	model.removeNode(PAGE_ROOT + "pageIndex");
	model.removeNode(PAGE_ROOT + "totalSize");
	model.removeNode(PAGE_ROOT + "pageUnit");
	model.removeNode(PAGE_ROOT + "pageSize");
//	body.removeChild(PAGE_GROUP_ID);
	if( null !=	document.controls(PAGE_GROUP_ID + cnt)){
 		eval(PAGE_GROUP_ID + cnt).visible = "false";
 		eval(PAGE_GROUP_ID + cnt).disabled = "true";
	}
}

function CMMMakeNavigator(pages){

	var fName = "goPage";
	var grpTag = "xforms:group";
	var btnTag = "xforms:button";
	var capTag = "xforms:caption";
	
	var pageCtl = document.controls("pagenavigator");
	var topLoc = pageCtl.attribute("top");
	var leftLoc = pageCtl.attribute("left");
	var width = pageCtl.attribute("width");
	var height = pageCtl.attribute("height");

	cnt++;
	var grpStyle = "";
	grpStyle += "class:group_pagenav;"
	grpStyle += "id:" + PAGE_GROUP_ID + cnt + SEMICOLON;
	grpStyle += "top:" + topLoc + SEMICOLON;
	grpStyle += "left:" + leftLoc + SEMICOLON;
	grpStyle += "width:" + width + SEMICOLON;
	grpStyle += "height:" + height + SEMICOLON;
	
	var grpCtl = body.createChild(grpTag, grpStyle);
	
	var current = 0;
	var imgSize = 13;
	var capSize = 10;
	var btnSize = 22;
	var unitSize = btnSize + capSize;
	var panelSize = 430;	// 페이지네이게이터 최대넓이
	var gap = 4;

	width = parseInt(width.trim("px"));
	var start = (width - panelSize == 0) ? 0 : parseInt((width - panelSize) / 2);
	start += (DEFAULT_PAGEUNIT - (pages.getEndListPage() - pages.getBeginUnitPage())) * parseInt(unitSize / 2);

	var prevEndStyle = "";
	current += start;
	prevEndStyle += "class:page_prevend;";
	prevEndStyle += "left:" + current + SEMICOLON;
	prevEndStyle += "onclick:" + fName + "(" + pages.getPageOfPreviousPageUnit() + ")" + SEMICOLON;

	if(pages.hasPreviousPageUnit()) {
		grpCtl.createChild(btnTag, prevEndStyle);
	} else {
		grpCtl.createChild(btnTag, prevEndStyle + "disabled:true;");
	}
	
	var prevStyle = "";
	current += imgSize + gap;
	prevStyle += "class:page_prev;";
	prevStyle += "left:" + current + SEMICOLON;
	prevStyle += "onclick:" + fName + "(" + pages.getStartOfPreviousPage() + ")" + SEMICOLON;

	if(pages.hasPreviousPage()) {
		grpCtl.createChild(btnTag, prevStyle);
	} else {
		grpCtl.createChild(btnTag, prevStyle + "disabled:true;");
	}
	
	var capStyle = "";
	capStyle += "class:page_sep;";
	capStyle += "text:|;";

	var pageStyle = "";
	current += imgSize + gap;
	var sep = current - (unitSize);
	var page = sep + gap;

    for(i = pages.getBeginUnitPage(); i <= pages.getEndListPage(); i++) {
    	sep += unitSize;
    	page += unitSize;
		pageStyle = "class:page_no; onclick:" + fName + "(" + i + ")" + SEMICOLON;
		
        if(i == pages.getCurrentPage()) {
			grpCtl.createChild(capTag, capStyle + "left:" + sep + SEMICOLON);
			grpCtl.createChild(btnTag, pageStyle + "font-weight:bold; left:" + page + "; text:" + i + SEMICOLON);

        } else {
			grpCtl.createChild(capTag, capStyle + "left:" + sep + SEMICOLON);
			grpCtl.createChild(btnTag, pageStyle + "left:" + page + "; text:" + i + SEMICOLON);
	    }
	}
	sep += unitSize;
	grpCtl.createChild(capTag, capStyle + "left:" + sep);
	
	var nextStyle = "";
	current = sep + imgSize + gap;
	nextStyle += "class:page_next;";
	nextStyle += "left:" + current + SEMICOLON;
	nextStyle += "onclick:" + fName + "(" + pages.getStartOfNextPage() + ")" + SEMICOLON;

	if(pages.hasNextPage()) {
		grpCtl.createChild(btnTag, nextStyle);
	} else {
		grpCtl.createChild(btnTag, nextStyle + "disabled:true;");
	}
	
	var nextStyle = "";
	current += imgSize + gap;
	nextStyle += "class:page_nextend;";
	nextStyle += "left:" + current + SEMICOLON;
	nextStyle += "onclick:" + fName + "(" + pages.getPageOfNextPageUnit() + ")" + SEMICOLON;

	if(pages.hasNextPageUnit()) {
		grpCtl.createChild(btnTag, nextStyle);
	} else {
		grpCtl.createChild(btnTag, nextStyle + "disabled:true;");
	}

}

function Page(pageIndex, totalSize, pageUnit, pageSize) {
    this.currentPageIndex = parseInt(pageIndex);
    this.totalSize = parseInt(totalSize);
    this.pageUnit = parseInt(pageUnit);
    this.pageSize = parseInt(pageSize);
    this.maxPage = parseInt((this.totalSize - 1) / this.pageSize) + 1;
    this.beginUnitPage = parseInt((this.currentPageIndex - 1) / this.pageUnit) * this.pageUnit + 1;
    this.endUnitPage = this.beginUnitPage + (this.pageUnit - 1);
/*
	var tmp = "currentPageIndex:"+this.currentPageIndex+"\n";
	tmp += "totalSize:"+this.totalSize+"\n";
	tmp += "pageUnit:"+this.pageUnit+"\n";
	tmp += "pageSize:"+this.pageSize+"\n";
	tmp += "maxPage:"+this.maxPage+"\n";
	tmp += "beginUnitPage:"+this.beginUnitPage+"\n";
	tmp += "endUnitPage:"+this.endUnitPage+"\n";
	alert(tmp);
*/
	// setter
	this.setCurrentPageIndex = function setCurrentPageIndex(value) {
		this.currentPageIndex = value;
	}	
	this.setTotalSize = function setTotalSize(value) {	
		this.totalSize = value;
	}
	this.setPageUnit = function setPageUnit(value) {	
		this.pageUnit = value;
	}
	this.setPageSize = function setPageSize(value) {	
		this.pageSize = value;
	}
	
	// getter	
	this.getStartOfNextPage = function getStartOfNextPage() {
        return this.currentPageIndex + 1;
	}
	this.getStartOfPreviousPage = function getStartOfPreviousPage() {
        return this.currentPageIndex - 1;
	}
	this.getStartOfNextPageUnit = function getStartOfNextPageUnit() {
        return this.endUnitPage + 1;
	}
	this.getStartOfPreviousPageUnit = function getStartOfPreviousPageUnit() {
        return this.beginUnitPage - 1;
	}
	this.getPageOfNextPageUnit = function getPageOfNextPageUnit() {
        return this.currentPageIndex + this.pageUnit < this.maxPage ? this.currentPageIndex + this.pageUnit : this.maxPage;
	}
	this.getPageOfPreviousPageUnit = function getPageOfPreviousPageUnit() {
        return this.currentPageIndex - this.pageUnit > 1 ? this.currentPageIndex - this.pageUnit : 1;
	}
	this.getCurrentPage = function getCurrentPage() {
        return this.currentPageIndex;
	}
	this.getBeginUnitPage = function getBeginUnitPage() {
        return this.beginUnitPage;
	}
	this.getEndListPage = function getEndListPage() {
        return this.endUnitPage > this.maxPage ? this.maxPage : this.endUnitPage;
	}
	this.getTotal = function getTotal() {
        return this.totalSize;
	}
	
	// info
	this.hasPreviousPageUnit = function hasPreviousPageUnit() {
        return this.currentPageIndex >= this.pageUnit + 1;
	}
	this.hasPreviousPage = function hasPreviousPage() {
        return this.currentPageIndex > 1;
	}
	this.hasNextPage = function hasNextPage() {
		return this.currentPageIndex < this.maxPage;
	}
	this.hasNextPageUnit = function hasNextPageUnit() {
        return this.endUnitPage < this.maxPage;
	}
	this.isEmptyPage = function isEmptyPage() {
        return this.totalSize==0 ? true : false;
	}
}

function goPage() {
	alert(PAGE_MSG);
}