/*--------------------------------------------------|
| dTree 2.05 | www.destroydrop.com/javascript/tree/ |
|---------------------------------------------------|
| Copyright (c) 2002-2003 Geir Landr                |
|                                                   |
| This script can be used freely as long as all     |
| copyright messages are intact.                    |
|                                                   |
| Updated: 17.04.2003                               |
|--------------------------------------------------*/

// Node object
function Node(id, pid, name, url, title, target, icon, iconOpen, open, checked,
              page, extCheckboxOnclick) {
    this.id = id;
    this.pid = pid;
    this.name = name;
    this.url = url;
    this.title = title;
    this.target = target;
    this.icon = icon;
    this.iconOpen = iconOpen;
    this.checked = checked;
    this.page = page;
    this.extCheckboxOnclick = extCheckboxOnclick;
    this._io = open || false;
    this._is = false;
    this._ls = false;
    this._hc = false;
    this._ai = 0;
    this._p;
};

// Tree object
function dTree(objName, targetID, selectItemName) {
    this.config = {
        target : null,
        folderLinks : true,
        useSelection : true,
        useCookies : false,
        useLines : true,
        useIcons : true,
        useStatusText : false,
        closeSameLevel : false,
        inOrder : false,
        multiSelect : false,
        selectChild : false
    }
    this.icon = {
        root : '',
        folder : '',
        folderOpen : '',
        node : '',
        empty : '',
        line : '',
        join : '',
        joinBottom : '',
        plus : '',
        plusBottom : '',
        minus : '',
        minusBottom : '',
        nlPlus : '',
        nlMinus : ''
    };

    this.icon.root = './images/dtree/base.gif';
    this.icon.folder = './images/dtree/folder.gif';
    this.icon.folderOpen = './images/dtree/folderopen.gif';
    this.icon.node = './images/dtree/page.gif';
    this.icon.empty = './images/dtree/empty.gif';
    this.icon.line = './images/dtree/line.gif';
    this.icon.join = './images/dtree/join.gif';
    this.icon.joinBottom = './images/dtree/joinbottom.gif';
    this.icon.plus = './images/dtree/plus.gif';
    this.icon.plusBottom = './images/dtree/plusbottom.gif';
    this.icon.minus = './images/dtree/minus.gif';
    this.icon.minusBottom = './images/dtree/minusbottom.gif';
    this.icon.nlPlus = './images/dtree/nolines_plus.gif';
    this.icon.nlMinus = './images/dtree/nolines_minus.gif';

    this.obj = objName;
    this.aNodes = [];
    this.aIndent = [];
    this.root = new Node(-1);
    this.selectedNode = null;
    this.selectedFound = false;
    this.completed = false;
    this.loadeds = {};
    this.aNodesData = []; // This array save the original data all the time.
    this.targetID = targetID || 'dtree';
    this.selectItemName = selectItemName ? selectItemName: "_selectitem";//checkbox name
};

// Adds a new node to the node array
dTree.prototype.add = function(id, pid, name, url, title, target, icon,
                               iconOpen, open, checked, page, extCheckboxOnclick) {
    this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title,
        target, icon, iconOpen, open, checked, page, extCheckboxOnclick);
};

// Open/close all nodes
dTree.prototype.openAll = function() {
    this.oAll(true);
};
dTree.prototype.closeAll = function() {
    this.oAll(false);
};

// Outputs the tree to the page
dTree.prototype.toString = function() {
    var str = '<div class="dtree">\n';
    if (document.getElementById) {
        if (this.config.useCookies)
            this.selectedNode = this.getSelected();
        str += this.addNode(this.root);
    } else
        str += 'Browser not supported.';
    str += '</div>';
    if (!this.selectedFound)
        this.selectedNode = null;
    this.completed = true;
    return str;
};

// Creates the tree structure
dTree.prototype.addNode = function(pNode) {
    var str = '';
    var n = 0;
    if (this.config.inOrder)
        n = pNode._ai;
    for (n; n < this.aNodes.length; n++) {
        if (this.aNodes[n].pid == pNode.id) {
            var cn = this.aNodes[n];
            cn._p = pNode;
            cn._ai = n;
            this.setCS(cn);
            if (!cn.target && this.config.target)
                cn.target = this.config.target;
            if (cn._hc && !cn._io && this.config.useCookies)
                cn._io = this.isOpen(cn.id);
            if (!this.config.folderLinks && cn._hc)
                cn.url = null;
            if (this.config.useSelection && cn.id == this.selectedNode
                && !this.selectedFound) {
                cn._is = true;
                this.selectedNode = n;
                this.selectedFound = true;
            }
            str += this.node(cn, n);
            if (cn._ls)
                break;
        }
    }
    return str;
};

/*
dTree.prototype.updateCheckStatus = function(nId, obj) {
	for (var n = 0; n < this.aNodes.length; n++) {
		if (this.aNodes[n].id == nId) {
			// alert("Checked ID: " + nId);
			this.aNodes[n].checked = obj.checked ? "checked" : "";
			break;
		}
	}
}*/

dTree.prototype.updateCheckStatus = function(nId, obj) {
    for (var n = 0; n < this.aNodes.length; n++) {
        if (this.aNodes[n].id == nId) {
            this.aNodes[n].checked = obj.checked ? "checked" : "";
            break;
        }
    }
    if('root'==nId){
        var aa = document.getElementsByName(this.selectItemName);
        if(this.selectChild){
            for(var i=0;i<aa.length;i++){
                aa[i].checked = obj.checked;
            }
        }
    }else{
        var sub = document.getElementsByName(this.selectItemName);
        if(sub){
            var snumber=0;
            //alert(sub[0].checked);
            for(var i=0;i<sub.length;i++){
                if(sub[i].checked) snumber++;
            }
            //var root = document.getElementsByName("TEMPALL"+this.selectItemName);
            var root=document.getElementById("TEMPALL_id");
            if(root){
                if(snumber==sub.length){
                    root.checked=true;
                }else{
                    root.checked=false;
                }
            }
        }
    }
}

// Creates the node icon, url and text
dTree.prototype.node = function(node, nodeId) {
    var str = '<div class="dTreeNode">' + this.indent(node, nodeId);
    if (this.config.multiSelect) {
        if (!this.config.selectChild || !node._hc) {
            var temp_item=('root'==node.id)?("TEMPALL"+this.selectItemName):this.selectItemName;
            var temp_id=('root'==node.id)?("TEMPALL_id"):"";
            //str += '<input type="checkbox" name="'+this.selectItemName+'" class="checkbox" value="'
            str += '<input type="checkbox" id="'+temp_id+'" name="'+temp_item+'" class="checkbox" value="'
                + node.title + '"'
                + ' text="' + node.name + '"'
                + ' onClick="'
                + this.obj
                + '.updateCheckStatus(\'' + node.id + '\', this);'
                + node.extCheckboxOnclick + '"';
            // alert("Node Checked(" + node.id + ")->" + node.checked);
            if (node.checked)
                str += node.checked;
            str += '>'; // to do
        }
    }
    if (this.config.useIcons) {
        if (!node.icon)
            node.icon = (this.root.id == node.pid)
                ? this.icon.root
                : ((node._hc) ? this.icon.folder : this.icon.node);
        if (!node.iconOpen)
            node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node;
        if (this.root.id == node.pid) {
            node.icon = this.icon.root;
            node.iconOpen = this.icon.root;
        }
        str += '<img id="i' + this.obj + nodeId + '" src="'
            + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />';
    }
    if (this.config.multiSelect) {
        if (node._hc)
            str += '<a href="###" onclick="' + this.obj + '.o(' + nodeId + ')" class="node">';
    } else if (node.url) {
        if (!this.config.selectChild || !node._hc) {
            str += '<a id="s'
                + this.obj
                + nodeId
                + '" class="'
                + ((this.config.useSelection) ? ((node._is
                    ? 'nodeSel'
                    : 'node')) : 'node');
            var index = node.url.toLowerCase().indexOf("javascript");
            if (index != -1){
                str += '" href="###" onclick="'+ node.url.substring(index + "javascript:".length) + '"';
            }else {
                str += '" href="' + node.url + '"';
            }
            if (node.title)
                str += ' title="' + node.title + '"';
            if (node.target)
                str += ' target="' + node.target + '"';
            if (this.config.useStatusText)
                str += ' onmouseover="window.status=\''
                    + node.name
                    + '\';return true;" onmouseout="window.status=\'\';return true;" ';
            if (this.config.useSelection
                && ((node._hc && this.config.folderLinks) || !node._hc))
                str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId
                    + ');"';
            str += '>';
        } else {
            str += '<a href="###" onclick="' + this.obj + '.o(' + nodeId + ')" class="node">';
        }
    } else if ((!this.config.folderLinks || !node.url) && node._hc)
        str += '<a href="###" onclick="' + this.obj + '.o(' + nodeId + ')" class="node">';
    str += '<span>' + node.name + '</span>';
    if (node.url || ((!this.config.folderLinks || !node.url) && node._hc))
        str += '</a>';
    str += '</div>';
    if (node._hc) {
        str += '<div id="d' + this.obj + nodeId
            + '" class="clip" style="display:'
            // + ((this.root.id == node.pid || node._io) ? 'block' : 'none')
            + ((node.pid || node._io) ? 'none' : 'block')
            + ';">';
        str += this.addNode(node);
        str += '</div>';
    }
    this.aIndent.pop();
    return str;
};

// Adds the empty and line icons
dTree.prototype.indent = function(node, nodeId) {
    var str = '';
    for (var n = 0; n < this.aIndent.length; n++)
        str += '<img src="'
            + ((this.aIndent[n] == 1 && this.config.useLines)
                ? this.icon.line
                : this.icon.empty) + '" alt="" />';
    (node._ls) ? this.aIndent.push(0) : this.aIndent.push(1);
    if (node._hc) {
        str += '<a href="###" onclick="' + this.obj + '.o(' + nodeId + ')"><img id="j' + this.obj + nodeId + '" src="';
        if (!this.config.useLines)
            str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus;
        else
            str += ((node._io) ? ((node._ls && this.config.useLines)
                ? this.icon.minusBottom
                : this.icon.minus) : ((node._ls && this.config.useLines)
                ? this.icon.plusBottom
                : this.icon.plus));
        str += '" alt="" /></a>';
    } else
        str += '<img src="'
            + ((this.config.useLines) ? ((node._ls)
                ? this.icon.joinBottom
                : this.icon.join) : this.icon.empty) + '" alt="" />';
    return str;
};

// Checks if a node has any children and if it is the last sibling
dTree.prototype.setCS = function(node) {
    var lastId;
    for (var n = 0; n < this.aNodes.length; n++) {
        if (this.aNodes[n].pid == node.id || node.page) // 瀛樺湪瀛愯妭鐐?
            node._hc = true;
        // if (this.aNodes[n].pid == node.id)
        // node._hc = true;
        if (this.aNodes[n].pid == node.pid)
            lastId = this.aNodes[n].id;
    }
    if (lastId == node.id)
        node._ls = true;
};

// Returns the selected node
dTree.prototype.getSelected = function() {
    var sn = this.getCookie('cs' + this.obj);
    return (sn) ? sn : null;
};

// Highlights the selected node
dTree.prototype.s = function(id) {
    if (!this.config.useSelection)
        return;
    var cn = this.aNodes[id];
    if (cn._hc && !this.config.folderLinks)
        return;
    if (this.selectedNode != id) {
        if (this.selectedNode || this.selectedNode == 0) {
            eOld = document.getElementById("s" + this.obj + this.selectedNode);
            eOld.className = "node";
        }
        eNew = document.getElementById("s" + this.obj + id);
        eNew.className = "nodeSel";
        this.selectedNode = id;
        if (this.config.useCookies)
            this.setCookie('cs' + this.obj, cn.id);
    }
};

// Toggle Open or close
dTree.prototype.o = function(id) {
    var cn = this.aNodes[id];

    if (cn.page && !this.loadeds[cn.id]) {
        this.getChildren(id, cn.page, cn.id);
    }
    this.nodeStatus(!cn._io, id, cn._ls);
    cn._io = !cn._io;
    if (this.config.closeSameLevel)
        this.closeLevel(cn);
    if (this.config.useCookies)
        this.updateCookie();
};

// Open or close all nodes
dTree.prototype.oAll = function(status) {
    for (var n = 0; n < this.aNodes.length; n++) {
        if (this.aNodes[n]._hc) {
            this.nodeStatus(status, n, this.aNodes[n]._ls)
            this.aNodes[n]._io = status;
        }
    }
    if (this.config.useCookies)
        this.updateCookie();
};

/**
 * Ajax鑾峰彇瀛愯妭鐐?
 *
 * @param {}
 *            id
 * @param {}
 *            page
 * @param {}
 *            pid
 */
dTree.prototype.getChildren = function(id, page, pid) {

    var ajax = null;

    if (window.ActiveXObject) {

        try {

            ajax = new ActiveXObject("Microsoft.XMLHTTP");

        } catch (e) {

            alert("鍒涘缓Microsoft.XMLHTTP瀵硅薄澶辫触,AJAX涓嶈兘姝ｅ父杩愯.璇锋鏌ユ偍鐨勬祻瑙堝櫒璁剧疆.");
        }

    } else {

        if (window.XMLHttpRequest) {

            try {

                ajax = new XMLHttpRequest();

            } catch (e) {

                alert("鍒涘缓XMLHttpRequest瀵硅薄澶辫触,AJAX涓嶈兘姝ｅ父杩愯.璇锋鏌ユ偍鐨勬祻瑙堝櫒璁剧疆.");
            }

        }
    }

    // following is just for xiaosilent's Sales Management System.
    // Server gives me a message like this :
    // id1,name1,childCount1|id2,name2,childCount2|...
    // var url ="/servlet/category?action=getChildren&parentID=" + pid +"&type="
    // + this.type;

    var url = "";

    if (page) {
        url = page;
        if (pid) {
            url += (page.indexOf("?") != -1 ? "&" : "?") + "pid=" + pid;
        }
    }

    // use this to get this dTree object in the following function.
    var tree = this;

    ajax.onreadystatechange = function() {

        if (ajax.readyState == 4 && ajax.status == 200) {
            if (ajax.responseText == "false") {
                return;
            }
            var json = ajax.responseText;

            var nodes = eval(json);
            for (var i = 0; i < nodes.length; i++) {
                var node = nodes[i];
                var nodeURL = node.url ? contextPath + node.url : "";

                // id, pid, name, url, title, target, icon, iconOpen, open,
                // checked, page
                tree.add(node.id, node.pid, node.name, nodeURL, node.title,
                    node.target, node.icon, node.iconOpen, node.open,
                    node.checked, node.page);
            }

            tree.loadeds[pid] = node;

            tree.show();
            //tree.openTo(id);
        }

    };

    ajax.open("POST", url, false);
    ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    ajax.send(null);
}

// Opens the tree to a specific node
dTree.prototype.openTo = function(nId, bSelect, bFirst) {
    if (!bFirst) {
        for (var n = 0; n < this.aNodes.length; n++) {
            if (this.aNodes[n].id == nId || this.aNodes[n].title == nId) {
                nId = n;
                break;
            }
        }
    }
    var cn = this.aNodes[nId];
    if (cn != null) {
        if (cn.pid == this.root.id || !cn._p)
            return;
        cn._io = true;
        cn._is = bSelect;

        if (cn.page && !this.loadeds[cn.id]) {
            this.getChildren(nId, cn.page, cn.id);
        }

        if (this.completed && cn._hc)
            this.nodeStatus(true, cn._ai, cn._ls);
        if (this.completed && bSelect)
            this.s(cn._ai);
        else if (bSelect)
            this._sn = cn._ai;
        this.openTo(cn._p._ai, false, true);
    }
};

// Closes all nodes on the same level as certain node
dTree.prototype.closeLevel = function(node) {
    for (var n = 0; n < this.aNodes.length; n++) {
        if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id
            && this.aNodes[n]._hc) {
            this.nodeStatus(false, n, this.aNodes[n]._ls);
            this.aNodes[n]._io = false;
            this.closeAllChildren(this.aNodes[n]);
        }
    }
}

// Closes all children of a node
dTree.prototype.closeAllChildren = function(node) {
    for (var n = 0; n < this.aNodes.length; n++) {
        if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) {
            if (this.aNodes[n]._io)
                this.nodeStatus(false, n, this.aNodes[n]._ls);
            this.aNodes[n]._io = false;
            this.closeAllChildren(this.aNodes[n]);
        }
    }
}

// Change the status of a node(open or closed)
dTree.prototype.nodeStatus = function(status, id, bottom) {
    eDiv = document.getElementById('d' + this.obj + id);
    eJoin = document.getElementById('j' + this.obj + id);
    if (this.config.useIcons) {
        eIcon = document.getElementById('i' + this.obj + id);
        eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon;
    }
    eJoin.src = (this.config.useLines) ? ((status) ? ((bottom)
        ? this.icon.minusBottom
        : this.icon.minus) : ((bottom)
        ? this.icon.plusBottom
        : this.icon.plus)) : ((status)
        ? this.icon.nlMinus
        : this.icon.nlPlus);
    eDiv.style.display = (status) ? 'block' : 'none';
};

// [Cookie] Clears a cookie
dTree.prototype.clearCookie = function() {
    var now = new Date();
    var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);
    this.setCookie('co' + this.obj, 'cookieValue', yesterday);
    this.setCookie('cs' + this.obj, 'cookieValue', yesterday);
};

// [Cookie] Sets value in a cookie
dTree.prototype.setCookie = function(cookieName, cookieValue, expires, path,
                                     domain, secure) {
    document.cookie = escape(cookieName) + '=' + escape(cookieValue)
        + (expires ? '; expires=' + expires.toGMTString() : '')
        + (path ? '; path=' + path : '')
        + (domain ? '; domain=' + domain : '') + (secure ? '; secure' : '');
};

// [Cookie] Gets a value from a cookie
dTree.prototype.getCookie = function(cookieName) {
    var cookieValue = '';
    var posName = document.cookie.indexOf(escape(cookieName) + '=');
    if (posName != -1) {
        var posValue = posName + (escape(cookieName) + '=').length;
        var endPos = document.cookie.indexOf(';', posValue);
        if (endPos != -1)
            cookieValue = unescape(document.cookie.substring(posValue, endPos));
        else
            cookieValue = unescape(document.cookie.substring(posValue));
    }
    return (cookieValue);
};

// [Cookie] Returns ids of open nodes as a string
dTree.prototype.updateCookie = function() {
    var str = '';
    for (var n = 0; n < this.aNodes.length; n++) {
        if (this.aNodes[n]._io) {
            if (str)
                str += '.';
            str += this.aNodes[n].id;
        }
    }
    this.setCookie('co' + this.obj, str);
};

// [Cookie] Checks if a node id is in a cookie
dTree.prototype.isOpen = function(id) {
    var aOpen = this.getCookie('co' + this.obj).split('.');
    for (var n = 0; n < aOpen.length; n++)
        if (aOpen[n] == id)
            return true;
    return false;
};

// If Push and pop is not implemented by the browser
if (!Array.prototype.push) {
    Array.prototype.push = function array_push() {
        for (var i = 0; i < arguments.length; i++)
            this[this.length] = arguments[i];
        return this.length;
    }
};
if (!Array.prototype.pop) {
    Array.prototype.pop = function array_pop() {
        lastElement = this[this.length - 1];
        this.length = Math.max(this.length - 1, 0);
        return lastElement;
    }
};

dTree.prototype.show = function() {
    // Renew the two array to save original data.
    this.rewriteHTML();
}

dTree.prototype.rewriteHTML = function() {

    var str = '';

    // Added by xiaosilent.
    var targetDIV;
    targetDIV = document.getElementById(this.targetID);

    if (!targetDIV) {

        alert('dTree can\'t find your specified container to show your tree.\n\n Please check your code!');

        return;
    }

    if (this.config.useCookies)
        this.selectedNode = this.getSelected();

    var str = '<div class="dtree">\n';
    str += this.addNode(this.root);
    str += '</div>';

    // Disabled by xiaosilent.
    // str += '</div>';

    if (!this.selectedFound)
        this.selectedNode = null;

    this.completed = true;

    // Disabled and added by xiaosilent.
    // return str;
    targetDIV.innerHTML = str;

};