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kee-tree.js
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kee-tree.js
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(function () {
function erase(arr, elm) {
for (var i = 0; i < arr.length; i++)
if (elm == arr[i])
arr[i] = null;
}
var userAgent = navigator.userAgent.toLowerCase();
window.kzg = {
browser: {
version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [
0, '0'])[1],
safari: /webkit/.test(userAgent),
opera: /opera/.test(userAgent),
msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
mozilla: /mozilla/.test(userAgent)
&& !/(compatible|webkit)/.test(userAgent),
chrome: /chrome/.test(userAgent)
},
get: function (id) {
return document.getElementById(id);
},
setStyle: function (el, styleText) {
if (this.browser.msie && this.browser.version < 8) {
el.style.cssText = styleText;
} else {
el.setAttribute("style", styleText);
}
},
addCss: function (el, css) {
if (!css || '' == css) {
return;
}
var ncss = this._getCsss(el);
var acsss = css.split(/\s+/);
for (var i = 0; i < acsss.length; i++) {
ncss[acsss[i]] = acsss[i];
}
var cssName = '';
for (k in ncss) {
if ('' == k) {
continue;
}
cssName += ' ' + k;
}
this.setCss(el, cssName);
},
removeCss: function (el, css) {
if (!css || '' == css) {
return;
}
var ncss = this._getCsss(el);
var cssName = '';
for (k in ncss) {
if ('' == k || css == k) {
continue;
}
cssName += ' ' + k;
}
this.setCss(el, cssName);
},
_getCsss: function (el) {
var ncss = {};
var ocss = this.getCss(el);
var oacsss = ocss ? ocss.split(/\s+/) : [];
for (var i = 0; i < oacsss.length; i++) {
ncss[oacsss[i]] = oacsss[i];
}
return ncss;
},
getCss: function (el) {
if (this.browser.msie && this.browser.version < 8) {
return el.getAttribute("className");
} else {
return el.getAttribute("class");
}
},
setCss: function (el, argCssName) {
if (this.browser.msie && this.browser.version < 8) {
el.setAttribute("className", argCssName);
} else {
el.setAttribute("class", argCssName);
}
},
clearCss: function (el) {
this.setStyle('');
if (this.browser.msie && this.browser.version < 8) {
el.removeAttribute("className");
} else {
el.removeAttribute("class");
}
},
remove: function (argObj) {
if (argObj.parentNode) {
argObj.parentNode.removeChild(argObj);
}
},
on: function (elem, type, fn) {
if (elem.addEventListener)
elem.addEventListener(type, function (e) {
fn(e);
}, false);
else if (elem.attachEvent)
elem.attachEvent("on" + type, function () {
fn(window.event);
});
},
/*
* un : function(el, type, fn) { $(el).unbind(type, fn); },
*/
oe: function (o, type, fn) {
if (!o.eves)
o.eves = [];
if (!o.eves[type])
o.eves[type] = [];
o.eves[type][o.eves[type].length] = fn;
},
ue: function (o, type, fn) {
if (!o.eves)
return;
if (!o.eves[type])
return;
erase(o.eves[type], fn);
},
fire: function (o, type, ops) {
if (!o.eves)
return;
if (!o.eves[type])
return;
var e = {
src: o,
stop: false
};
for (var i = 0; i < o.eves[type].length; i++) {
if (o.eves[type][i]) {
o.eves[type][i](e, ops);
if (e.stop)
return;
}
}
},
cr: function (tag) {
return document.createElement(tag);
},
crradio: function (argName, argIsChecked) {
var radio;
if (this.browser.msie && this.browser.version < 8) {
var text = "<input type=\"radio\" name=\"" + argName
+ "\" value=\"checked\" >";
radio = document.createElement(text);
} else {
radio = document.createElement("input");
radio.setAttribute("type", "radio");
radio.setAttribute("name", argName);
radio.setAttribute("value", "checked");
}
radio.checked = argIsChecked;
return radio;
},
ok: function (fn) {
kzg.oe(kzg, 'ok', fn);
},
inade: function (argObj, argStrsomewhere, argNewObj) {
var parent;
switch (argStrsomewhere.toLowerCase()) {
case "beforebegin":
argObj.parentNode.insertBefore(argNewObj, argObj);
break;
case "afterbegin":
var nn = !argObj.childNodes ? null : argObj.childNodes[0];
if (!nn) {
nn = null
}
;
argObj.insertBefore(argNewObj, nn);
break;
case "beforeend":
argObj.appendChild(argNewObj);
break;
case "afterend":
var nnode = this.nextnode(argObj);
argObj.parentNode.insertBefore(argNewObj, nnode);
break;
}
},
nextnode: function (argObj) {
var parent, obj;
obj = null;
parent = argObj.parentNode;
for (var i = 0; parent.childNodes[i]; i++) {
if (parent.childNodes[i] === argObj) {
try {
obj = parent.childNodes[i + 1];
} catch (e) {
obj = null;
}
break;
}
}
return obj;
}
};
kzg.on(window, "load", function () {
kzg.fire(kzg, 'ok');
});
})();
/**
* the treenode
*
* @configbegin
* @tree the tree of the node stand in
* @text caption of the node show on the
* @key a unique key in the whole tree for this node,and can find this node by
* the key
* @icon the image of this node
* @expandStyle "always" or "auto"(default),it is useful set to "always" when
* this is a lazy-loading node(such as ajax-loading)
* @type kzg.Tree.CHECKBOX or kzg.Tree.RADIOBOX
* @configend
* @require [base] Tree.js
*/
kzg.TreeNode = function (ops) {
var tree = ops.tree;
this.tree = tree;
var node = this;
// keydex is the index and key of every node,but is not really the index
node.keydex = null;
// nbody is the nodebody
var nbody = kzg.cr("span");
var container = kzg.cr("span");
kzg.inade(container, "afterBegin", nbody);
node.body = nbody;
node.container = container;
var STYLE_NODE = "color:#000000;";
node.first = node.last = node.next = node.prev = null;
node.caption = ops.text;
node.tier = null;
node.parent = null;
node.hasChild = false;
node.labstyle = null;
node.type = ops.type;
// joker:node.expandStyle:alwalys|auto
node.expandStyle = ops.expandStyle != null ? ops.expandStyle : "auto";
node.exIcon = null;
var icon = new Image();
icon.align = "absmiddle";
node.label = null;
node.icon = icon;
node.tree = tree;
node.lineIcon = [];
node.type = ops.type ? ops.type : kzg.Tree.NORMAL;
node.children = [];
node.key = ops.key;
var depth;
depth = tree.depth;
node.label = kzg.cr("span");
kzg.setStyle(container, "margin:0px;padding:0px;white-space:nowrap;");
kzg.inade(nbody, "beforeEnd", node.label);
kzg
.setStyle(nbody,
'margin:0px;cursor:default;text-align:left;color:black;font-size:9pt;');
if (ops.iconCls) {
icon.src = kzg.Tree.S;
kzg.setCss(icon, ops.iconCls);
} else {
if (ops.icon) {
icon.src = ops.icon;
} else {
icon.src = kzg.Tree.S;
kzg.setCss(icon, 'k_tree_icon_default');
}
}
kzg.setStyle(node.label, tree.labelStyle);
kzg.inade(nbody, "afterBegin", icon)
icon.tabIndex = node.label.tabIndex = 1;
icon.hideFocus = true;
// all add param node
node.select = function () {
if (!node.isEnable()) {
return;
}
tree.doSelect(node);
};
node.enable = function (enable) {
node.disabled = false === enable;
};
node.isEnable = function () {
return !node.disabled;
};
node.isVisible = function () {
var str;
str = node.container.style.display;
return str && str != "none";
};
kzg.on(node.label, 'click', node.select);
kzg.on(node.icon, 'click', node.select);
nbody.oncontextmenu = function () {
var e;
if (kzg.browser.msie) {
e = window.event;
} else {
e = arguments[0];
}
if (tree.oncontextmenu) return tree.oncontextmenu(e, node);
};
node.addExIcon = function () {
if (!node.exIcon) {
node.exIcon = new Image();
node.exIcon.align = "absmiddle";
node.exIcon.src = kzg.Tree.S;
kzg.on(node.exIcon, 'click', function () {
node.expand();
});
var o = node.icon.src == '' ? node.label : node.icon;
kzg.inade(o, "beforeBegin", node.exIcon);
}
}
// delete all the child of the node
node.removeChildren = function () {
var count = node.getChildrenCount();
for (var i = 0; node.children[i];) {
tree.removeNode(node.children[i], true);
}
};
/*
* node.setExpandStyle argStyle:["auto"|"always"]:node's expand styles
*/
node.setExpandStyle = function (argStyle) {
if (null == argStyle) {
argStyle = node.expandStyle;
}
if (argStyle == "always") {
node.addExIcon();
if (!node.hasChild && node.expanded) {
node.expanded = false;
}
} else if (argStyle == "auto" && node.expandStyle != "auto") {
if (!node.hasChild && node.exIcon != null && !tree.isLineStyle()) {
node.body.removeChild(node.exIcon);
node.exIcon = null;
}
}
node.expandStyle = argStyle;
tree.setExIcon(node);
};
/**
* node.expand:expand this node
*
* @param isShow
* [true|false]:is expand or collapse
* @param incSub
* [true|false]:is the sub node's child node need do the same
* thing
*/
node.expand = function (isShow, incSub) {
//
// if(node.children.length==0)return;
if (node.children.length == 0 && node.expandStyle != "always")
return;
if (isShow == null) {
node.expanded = !node.expanded;
} else {
node.expanded = isShow;
}// end if
var sh = node.expanded ? "block" : "none";
var icount = node.children.length;
for (var i = 0; i < icount; i++) {
node.children[i].container.style.display = sh;
// baseFunc.setSingleStyle(node.children[i].container,"display",sh);
if (incSub && (!(isShow ^ node.children[i].expanded))) {
node.children[i].expand(node.expanded, true);
}
}
tree.setExIcon(node);
// add node Eventarg to node.onexpand
if (node.expanded) {
kzg.fire(node, 'expand');
} else {
kzg.fire(node, 'collapse');
}
};
if (kzg.Tree.CHECKBOX == node.type) {
var chkBox = null;
chkBox = kzg.cr("input");
chkBox.setAttribute("type", "checkbox");
chkBox.align = "absmiddle";
chkBox.style.verticalAlign = 'middle';
kzg.inade(node.label, "beforeBegin", chkBox);
node.checkBox = chkBox;
chkBox.checked = node.checked = false;
// fire oncheck event
kzg.on(chkBox, 'click', function () {
node.checked = chkBox.checked;
kzg.fire(node, 'click');
});
} else if (kzg.Tree.RADIOBOX == node.type) {
node.rdobox = null;
node.checked = false;
var rdoBox = kzg.crradio(null, false);
rdoBox.style.verticalAlign = 'middle';
kzg.inade(node.label, "beforeBegin", rdoBox);
// fire oncheck event
kzg.on(rdoBox, 'click', function () {
node.setRadioCheck();
});
node.rdoBox = rdoBox;
}
/**
* set the check box checked or not,this method can't be called before this
* node is added to the tree
*
* @param _argChecked
* check or not check
* @param _argsetChild
* if set the children of the node checkd as their parent
* @param _argFireEvent
* if fire the oncheck event
*/
node.setChecked = function (_argChecked, _argsetChild, _argFireEvent) {
if (kzg.Tree.CHECKBOX != node.type) {
return;
}
if (_argFireEvent) {
}
// care this check
// is necessary or it will cause infinitude recursion
if (node.checkBox.checked != _argChecked) {
node.checked = node.checkBox.checked = _argChecked;
if (_argFireEvent) {
kzg.fire(node, 'click');
}
}
if (_argsetChild) {
for (var i = 0; i < node.getChildrenCount(); i++) {
node.children[i].setChecked(_argChecked, true, _argFireEvent);
}
}
};
/**
* set the radio checkbox checked,this method can't be called before this
* node is added to the tree
*
* @param _argFireEvent
* is fire the event
*/
node.setRadioCheck = function () {
if (kzg.Tree.RADIOBOX != node.type) {
throw new Error("this is not a radiobox node.");
}
var p;
var nd;
var oNode;
p = node.parent;
if (p != null && p != tree.root) {
oNode = p.checkedRdobox;
for (var i = 0; i < p.getChildrenCount(); i++) {
nd = p.children[i];
if (nd.rdoBox && node != nd) {
nd.checked = nd.rdoBox.checked = false;
}
}
p.checkedRdobox = node;
}
node.checked = node.rdoBox.checked = true;
// fire
if (node.parent && node.parent != tree.root) {
if (oNode != node) {
kzg.fire(node.parent, 'rdocheckchanged', {
preNode: oNode,
curNode: node
});
}
}
};
this.setCaption = function (argCaption) {
node.caption = argCaption;
node.label.innerHTML = argCaption;
};
node.setCaption(ops.text);
node.remove = function () {
tree.removeNode(node);
}
node.getChildrenCount = function () {
return node.children ? node.children.length : 0
};
node.getTier = function () {
return node.tier;
}
return node
}
kzg.Tree = function (ops) {
var tree = this;
var defaultTheme = {
k_tree_icon_blank: null,
k_tree_icon_leaf_top: null,
k_tree_icon_leaf: null,
k_tree_icon_twig: null,
k_tree_icon_collapse: null,
k_tree_icon_expand: null,
k_tree_icon_collapse_top: null,
k_tree_icon_expand_top: null,
k_tree_icon_collapse_mid: null,
k_tree_icon_expand_mid: null,
k_tree_icon_collapse_end: null,
k_tree_icon_expand_end: null
};
if (!kzg.Tree.SI) {
kzg.Tree.SI = new Image();
kzg.Tree.SI.src = kzg.Tree.S
}
var COLOR_SELECT_BG = "highlight";
var labelStyle = ops.labelStyle
? labelStyle
: "padding:0;margin-left:2;vertical-align:middle;text-align:left;"
this.labelStyle = labelStyle;
tree.depth = 0;
var count = 0, nodes = [];
// is show line
this.showline = ops.showline;
// checkbox
var colChkNode = [];
// radiobox
var colrdoNode = [];
// root
// inner object: root
var root = {};
root.children = [];
root.expanded = true;
root.getTier = function () {
return 0;
}
tree.selectedNode = null;
// return the object's index in the array,return -1 if not found
var isExpandable = function (srcNode) {
return srcNode.expandStyle == "always" || srcNode.hasChild;
};// end md
var isFirstTop = function (srcNode) {
return srcNode.parent == root && root.children[0] == srcNode;
};// end md
var isLeaf = function (srcNode) {
return srcNode.next != null;
};// end md
var isTwig = function (srcNode) {
return srcNode.next == null;
};// end md
// inner function :
/**
* set the icon of the expandable node
*
* @param srcNode
*/
var setExIcon = function (srcNode) {
var strImgkey;
var expanded = srcNode.expanded;
if (!isExpandable(srcNode)) {
// not expandable
if (!tree.showline) {
// if (srcNode.exIcon) {
// kzg.remove(srcNode.exIcon);
// return;
// }
strImgkey = 'k_tree_icon_blank';
} else {
if (isFirstTop(srcNode)) {
// is first top,this is special
if (isTwig(srcNode)) {
// has no sister
if (srcNode.exIcon) {
strImgkey = 'k_tree_icon_blank';
}
} else {
strImgkey = 'k_tree_icon_leaf_top';
}
} else if (isLeaf(srcNode)) {
strImgkey = 'k_tree_icon_leaf';
} else {
strImgkey = 'k_tree_icon_twig';
}
}
} else {
// need show expand
if (!tree.showline) {
strImgkey = expanded ? 'k_tree_icon_collapse_noline' : 'k_tree_icon_expand_noline';
} else {
if (isFirstTop(srcNode)) {
if (isTwig(srcNode)) {
strImgkey = expanded
? "k_tree_icon_collapse"
: "k_tree_icon_expand";
} else {
strImgkey = expanded
? "k_tree_icon_collapse_top"
: "k_tree_icon_expand_top";
}
} else if (isLeaf(srcNode)) {
strImgkey = expanded
? "k_tree_icon_collapse_mid"
: "k_tree_icon_expand_mid";
} else {
strImgkey = expanded
? "k_tree_icon_collapse_end"
: "k_tree_icon_expand_end";
}
}
}
// if (tree.showline && !srcNode.exIcon) {
// srcNode.addExIcon();
// }
if (!srcNode.exIcon) {
srcNode.addExIcon();
}
if (srcNode.exIcon) {
srcNode.icon.style.marginLeft = "0";
kzg.setCss(srcNode.exIcon, strImgkey);
} else {
if (!tree.showline) {
srcNode.icon.style.marginLeft = kzg.Tree.SI.width;
}
}
return;
}
this.setExIcon = setExIcon;
/*
* setLine :set the "|" line icon
*/
var setLine = function (srcNode, idx) {
// if (!tree.showline)
// return;
if (srcNode.hasChild) {
for (var i = 0; i < srcNode.children.length; i++) {
kzg.setCss(srcNode.children[i].lineIcon[idx], !tree.showline
? 'k_tree_icon_blank'
: 'k_tree_icon_line');
setLine(srcNode.children[i], idx);
}
}
}
this.setLine = setLine;
var doSelect = function (srcNode) {
// reset previous selected node
if (tree.selectedNode != null) {
tree.selectedNode.label.style.background = tree.selectedNode.label._background;
tree.selectedNode.label.style.color = tree.selectedNode.label._color;
}
srcNode.label._background = srcNode.label.style.background
? srcNode.label.style.background
: 'none';
srcNode.label._color = srcNode.label.style.color
? srcNode.label.style.color
: 'black';
srcNode.label.style.background = COLOR_SELECT_BG;
srcNode.label.style.color = "highlighttext";
tree.selectedNode = srcNode;
kzg.fire(tree, 'select');
}
this.doSelect = doSelect;
this.enable = function (enable) {
var enable = false !== enable;
for (var i = 0; i < count; i++) {
nodes[i].enable(enable);
}
};
var addNode = function (toNode, node) {
node.tier = toNode.getTier() + 1;
toNode.children[toNode.children.length] = node;
var o = toNode == root ? tree.body : toNode.container;
kzg.inade(o, "beforeEnd", node.container);
node.parent = toNode;
// set the brother:can optimize
if (toNode.hasChild) {
node.prev = toNode.last;
toNode.last.next = node;
toNode.last = node;
} else {
toNode.first = toNode.last = node;
}
// can opt
node.keydex = toNode.getChildrenCount();
node.parent.hasChild = true;
if (tree.depth < node.tier)
tree.depth = node.tier;
node.container.style.display = node.parent.expanded ? "block" : "none";
var indent = ops.indent ? ops.indent : 16;
// if (!tree.showline) {
// node.body.style.textIndent = indent * (node.tier - 1) + "px";
// }
// is the branch icon show
// if (tree.showline) {
// node.addExIcon();
// }
// set the line
if (true) {
// if (tree.showline) {
for (var i = node.tier - 2; i >= 0; i--) {
var img = new Image();
img.align = "absmiddle";
img.src = kzg.Tree.S;
kzg.inade(node.body, "afterBegin", img);
node.lineIcon[i] = img;
}
if (node.prev != null) {
tree.setLine(node.prev, node.tier - 1);
}
var n = node.parent;
var i = node.tier - 2;
while (n != root && i >= 0) {
if (n.next != null) {
kzg.setCss(node.lineIcon[i], !tree.showline
? 'k_tree_icon_blank'
: 'k_tree_icon_line');
// node.lineIcon[i].src=tree.icons["line"].src;
}
n = n.parent;
i--;
}
}
// add expand image with the style judgement
var ma = node.parent;
if (ma != root) {
if (ma.exIcon == null) {
// note:the real expand icon is set when add child
ma.exIcon = new Image();
ma.exIcon.src = kzg.Tree.S;
ma.exIcon.align = "absmiddle";
kzg.on(ma.exIcon, 'click', function () {
ma.expand();
});
var o = ma.icon.src == "" ? ma.label : ma.icon;
kzg.inade(o, "beforeBegin", ma.exIcon);
}
//
tree.setExIcon(ma);
}
node.expanded = true;
// set the left margin
if (!isExpandable(node)) {
node.icon.style.marginLeft = kzg.Tree.SI.width;
}
node.expanded = true;
node.setExpandStyle();
if (node.prev && tree.showline) {
tree.setExIcon(node.prev);
}
if (node.key && node.key != '') {
tree.nodes[node.key] = node;
}
tree.nodes[count] = node;
count++;
return node;
}
this.addNode = addNode;
// remove
// remove the element in the array
function removeo(arr, obj) {
var bl;
bl = false;
for (var i = 0; i < arr.length; i++) {
if (obj === arr[i] || bl) {
arr[i] = arr[i + 1];
bl = true;
}
}
if (bl) {
arr.length--;
}
}
var remove = function (srcNode) {
kzg.remove(srcNode.container);
removeo(nodes, srcNode);
}
/**
* remove all the nodes of the tree
*/
this.removeAll = function () {
var count;
var nds;
nds = tree.root.children;
count = nds.length;
for (var i = 0; i < count;) {
if (nds[i]) {
tree.removeNode(nds[i], true);
} else {
i++;
}
}
};
/**
* @param srcNode
* @param argIsRecursion
* is this is the recurse invoke,need this to enhance performance
*/
this.removeNode = function (srcNode, argIsRecursion) {
if (!srcNode) {
return;
}// end if
if (!srcNode.hasChild) {
remove(srcNode);
var ma = srcNode.parent, jj = srcNode.prev, mm = srcNode.next;
if (!argIsRecursion) {
// set the state
if (ma.first == srcNode && ma.last == srcNode && ma != root) {
ma.hasChild = false;
// when the only child been removed,if it's not expand style
// of "always"
// it shuold remove the expand icon,but I don't known why
// "alai" use this method to remove
// I change to remove the icon
// document.createElement("div").insertAdjacentElement("afterBegin",ma.exIcon);
if (ma.expandStyle != "always") {
kzg.remove(ma.exIcon);
} else {
ma.expanded = false;
}
setExIcon(ma);
ma.first = ma.last = null;
} else {
if (jj != null) {
jj.next = mm;
setExIcon(jj);
} else {
ma.first = mm;
}// end if
if (mm != null) {
mm.prev = jj;
setExIcon(mm);
// hold the keydex state
var dd;
dd = mm;
while (dd) {
dd.keydex--;
dd = dd.next;
}
} else {
ma.last = jj;
}
}
}
// do not forget to remove the obj from the children
if (ma != root) {
removeo(ma.children, srcNode);
if (ma.children.length < 1) {
ma.hasChild = false;
}
}
count--;
srcNode = null;
} else {
var count = srcNode.children.length;
for (var i = 0; i < count;) {
if (srcNode.children[i]) {
tree.removeNode(srcNode.children[i], true);
} else {
i++;
}
}
tree.removeNode(srcNode, argIsRecursion);
}
}
/**
* tree.locate locate the node by its keydex
*
* @param argKeydex
* the keydex of the node
*/
var locate = function (argKeydex) {
var strsKeydexs;
var index;
var tNode;
// the "." represent the root
if ("." == argKeydex) {
return tree.root;
}
tNode = tree.root;
strsKeydexs = argKeydex.split(".");
for (var i = 0; i < strsKeydexs.length; i++) {
if ("" != strsKeydexs[i]) {
index = new Number(strsKeydexs[i]);
tNode = tNode.children[index - 1];
}
}
// if a wrong argKeydex ,return null
if (tree.root == tNode) {
return null;
}
return tNode;
}
this.locate = locate;
/**
* get the node's keydex path,note the keydex is start from 1
*
* @param argNode
*/
this.getNodeKeydex = function (argNode) {
var strKeydex;
var pNode;
strKeydex = argNode != root ? argNode.keydex : "";
pNode = argNode.parent;
while (root != pNode) {
strKeydex = pNode.keydex + "." + strKeydex;
pNode = pNode.parent;
}
strKeydex = "." + strKeydex;
return strKeydex;
}
// getChildrenCount
root.getChildrenCount = function () {
return root.children != null ? root.children.length : 0;
}
this.getNodesByTier = function (num) {
var col = [];
for (var i = 0; i < count; i++) {
if (nodes[i].getTier() == num) {
col[col.length] = nodes[i];
}