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GooFlow.js
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//定义一个区域图类：
function GooFlow(bgDiv,property){
if (navigator.userAgent.indexOf("MSIE 8.0")>0||navigator.userAgent.indexOf("MSIE 7.0")>0||navigator.userAgent.indexOf("MSIE 6.0")>0)
GooFlow.prototype.useSVG="";
else GooFlow.prototype.useSVG="1";
//初始化区域图的对象
this.$id=bgDiv.attr("id");
this.$bgDiv=bgDiv;//最父框架的DIV
this.$bgDiv.addClass("GooFlow");
var width=(property.width||800)-2;
var height=(property.height||500)-2;
this.$bgDiv.css({width:width+"px",height:height+"px"});
this.$tool=null;//左侧工具栏对象
this.$head=null;//顶部标签及工具栏按钮
this.$title="newFlow_1";//流程图的名称
this.$nodeRemark={};//每一种结点或按钮的说明文字,JSON格式,key为类名,value为用户自定义文字说明
this.$nowType="cursor";//当前要绘制的对象类型
this.$lineData={};
this.$lineCount=0;
this.$nodeData={};
this.$nodeCount=0;
this.$areaData={};
this.$areaCount=0;
this.$lineDom={};
this.$nodeDom={};
this.$areaDom={};
this.$max=property.initNum||1;//计算默认ID值的起始SEQUENCE
this.$focus="";//当前被选定的结点/转换线ID,如果没选中或者工作区被清空,则为""
this.$cursor="default";//鼠标指针在工作区内的样式
this.$editable=false;//工作区是否可编辑
this.$deletedItem={};//在流程图的编辑操作中被删除掉的元素ID集合,元素ID为KEY,元素类型(node,line.area)为VALUE
var headHeight=0;
var tmp="";
if(property.haveHead){
tmp="<div class='GooFlow_head'><label title='"+(property.initLabelText||"newFlow_1")+"'>"+(property.initLabelText||"newFlow_1")+"</label>";
for(var x=0;x<property.headBtns.length;++x){
tmp+="<a href='javascript:void(0)' class='GooFlow_head_btn'><b class='ico_"+property.headBtns[x]+"'></b></a>"
}
tmp+="</div>";
this.$head=$(tmp);
this.$bgDiv.append(this.$head);
headHeight=24;
//以下是当工具栏按钮被点击时触发的事件自定义(虚函数),格式为function(),因为可直接用THIS操作对象本身,不用传参；用户可自行重定义:
this.onBtnNewClick=null;//新建流程图按钮被点中
this.onBtnOpenClick=null;//打开流程图按钮定义
this.onBtnSaveClick=null;//保存流程图按钮定义
this.onFreshClick=null;//重载流程图按钮定义
if(property.headBtns)
this.$head.on("click",{inthis:this},function(e){
if(!e)e=window.event;
var tar=e.target;
if(tar.tagName=="DIV"||tar.tagName=="SPAN") return;
else if(tar.tagName=="a") tar=tar.childNode[0];
var This=e.data.inthis;
//定义顶部操作栏按钮的事件
switch($(tar).attr("class")){
case "ico_new": if(This.onBtnNewClick!=null) This.onBtnNewClick();break;
case "ico_open": if(This.onBtnOpenClick!=null) This.onBtnOpenClick();break;
case "ico_save": if(This.onBtnSaveClick!=null) This.onBtnSaveClick();break;
case "ico_undo": This.undo();break;
case "ico_redo": This.redo();break;
case "ico_reload" :if(This.onFreshClick!=null) This.onFreshClick();break;
}
});
}
var toolWidth=0;
if(property.haveTool){
this.$bgDiv.append("<div class='GooFlow_tool'"+(property.haveHead? "":" style='margin-top:3px'")+"><div style='height:"+(height-headHeight-(property.haveHead? 7:10))+"px' class='GooFlow_tool_div'></div></div>");
this.$tool=this.$bgDiv.find(".GooFlow_tool div");
//未加代码：加入绘图工具按钮
this.$tool.append("<a href='javascript:void(0)' type='cursor' class='GooFlow_tool_btndown' id='"+this.$id+"_btn_cursor'><b class='ico_cursor'/></a><a href='javascript:void(0)' type='direct' class='GooFlow_tool_btn' id='"+this.$id+"_btn_direct'><b class='ico_direct'/></a>");
if(property.toolBtns&&property.toolBtns.length>0){
tmp="<span/>";
for(var i=0;i<property.toolBtns.length;++i){
tmp+="<a href='javascript:void(0)' type='"+property.toolBtns[i]+"' id='"+this.$id+"_btn_"+property.toolBtns[i].split(" ")[0]+"' class='GooFlow_tool_btn'><b class='ico_"+property.toolBtns[i]+"'/></a>";//加入自定义按钮
}
this.$tool.append(tmp);
}
//加入区域划分框工具开关按钮
if(property.haveGroup)
this.$tool.append("<span/><a href='javascript:void(0)' type='group' class='GooFlow_tool_btn' id='"+this.$id+"_btn_group'><b class='ico_group'/></a>");
toolWidth=31;
this.$nowType="cursor";
//绑定各个按钮的点击事件
this.$tool.on("click",{inthis:this},function(e){
if(!e)e=window.event;
var tar;
switch(e.target.tagName){
case "SPAN":return false;
case "DIV":return false;
case "B": tar=e.target.parentNode;break;
case "A": tar=e.target;
};
var type=$(tar).attr("type");
e.data.inthis.switchToolBtn(type);
return false;
});
this.$editable=true;//只有具有工具栏时可编辑
}
width=width-toolWidth-8;
height=height-headHeight-(property.haveHead? 5:8);
this.$bgDiv.append("<div class='GooFlow_work' style='width:"+(width)+"px;height:"+(height)+"px;"+(property.haveHead? "":"margin-top:3px")+"'></div>");
this.$workArea=$("<div class='GooFlow_work_inner' style='width:"+width*3+"px;height:"+height*3+"px'></div>")
.attr({"unselectable":"on","onselectstart":'return false',"onselect":'document.selection.empty()'});
this.$bgDiv.children(".GooFlow_work").append(this.$workArea);
this.$draw=null;//画矢量线条的容器
this.initDraw("draw_"+this.$id,width,height);
this.$group=null;
if(property.haveGroup)
this.initGroup(width,height);
if(this.$editable){
this.$workArea.on("click",{inthis:this},function(e){
if(!e)e=window.event;
if(!e.data.inthis.$editable)return;
var type=e.data.inthis.$nowType;
if(type=="cursor"){
var t=$(e.target);
var n=t.prop("tagName");
if(n=="svg"||(n=="DIV"&&t.prop("class").indexOf("GooFlow_work")>-1)||n=="LABEL")e.data.inthis.blurItem();
return;
}
else if(type=="direct"||type=="group")return;
var X,Y;
var ev=mousePosition(e),t=getElCoordinate(this);
X=ev.x-t.left+this.parentNode.scrollLeft-1;
Y=ev.y-t.top+this.parentNode.scrollTop-1;
e.data.inthis.addNode(e.data.inthis.$id+"_node_"+e.data.inthis.$max,{id:e.data.inthis.$id+"_node_"+e.data.inthis.$max,name:"node_"+e.data.inthis.$max,left:X,top:Y,type:e.data.inthis.$nowType});
e.data.inthis.$max++;
});
//划线时用的绑定
this.$workArea.mousemove({inthis:this},function(e){
if(e.data.inthis.$nowType!="direct") return;
var lineStart=$(this).data("lineStart");
if(!lineStart)return;
var ev=mousePosition(e),t=getElCoordinate(this);
var X,Y;
X=ev.x-t.left+this.parentNode.scrollLeft;
Y=ev.y-t.top+this.parentNode.scrollTop;
var line=document.getElementById("GooFlow_tmp_line");
if(GooFlow.prototype.useSVG!=""){
line.childNodes[0].setAttribute("d","M "+lineStart.x+" "+lineStart.y+" L "+X+" "+Y);
line.childNodes[1].setAttribute("d","M "+lineStart.x+" "+lineStart.y+" L "+X+" "+Y);
if(line.childNodes[1].getAttribute("marker-end")=="url(\"#arrow2\")")
line.childNodes[1].setAttribute("marker-end","url(#arrow3)");
else line.childNodes[1].setAttribute("marker-end","url(#arrow2)");
}
else line.points.value=lineStart.x+","+lineStart.y+" "+X+","+Y;
});
this.$workArea.mouseup({inthis:this},function(e){
if(e.data.inthis.$nowType!="direct") return;
$(this).css("cursor","auto").removeData("lineStart");
var tmp=document.getElementById("GooFlow_tmp_line");
if(tmp)e.data.inthis.$draw.removeChild(tmp);
});
//为了结点而增加的一些集体delegate绑定
this.initWorkForNode();
//对结点进行移动或者RESIZE时用来显示的遮罩层
this.$ghost=$("<div class='rs_ghost'></div>").attr({"unselectable":"on","onselectstart":'return false',"onselect":'document.selection.empty()'});
this.$bgDiv.append(this.$ghost);
this.$textArea=$("<textarea></textarea>");
this.$bgDiv.append(this.$textArea);
this.$lineMove=$("<div class='GooFlow_line_move' style='display:none'></div>");//操作折线时的移动框
this.$workArea.append(this.$lineMove);
this.$lineMove.on("mousedown",{inthis:this},function(e){
if(e.button==2)return false;
var lm=$(this);
lm.css({"background-color":"#333"});
var This=e.data.inthis;
var ev=mousePosition(e),t=getElCoordinate(This.$workArea[0]);
var X,Y;
X=ev.x-t.left+This.$workArea[0].parentNode.scrollLeft;
Y=ev.y-t.top+This.$workArea[0].parentNode.scrollTop;
var p=This.$lineMove.position();
var vX=X-p.left,vY=Y-p.top;
var isMove=false;
document.onmousemove=function(e){
if(!e)e=window.event;
var ev=mousePosition(e);
var ps=This.$lineMove.position();
X=ev.x-t.left+This.$workArea[0].parentNode.scrollLeft;
Y=ev.y-t.top+This.$workArea[0].parentNode.scrollTop;
if(This.$lineMove.data("type")=="lr"){
X=X-vX;
if(X<0) X=0;
else if(X>This.$workArea.width())
X=This.$workArea.width();
This.$lineMove.css({left:X+"px"});
}
else if(This.$lineMove.data("type")=="tb"){
Y=Y-vY;
if(Y<0) Y=0;
else if(Y>This.$workArea.height())
Y=This.$workArea.height();
This.$lineMove.css({top:Y+"px"});
}
isMove=true;
}
document.onmouseup=function(e){
if(isMove){
var p=This.$lineMove.position();
if(This.$lineMove.data("type")=="lr")
This.setLineM(This.$lineMove.data("tid"),p.left+3);
else if(This.$lineMove.data("type")=="tb")
This.setLineM(This.$lineMove.data("tid"),p.top+3);
}
This.$lineMove.css({"background-color":"transparent"});
if(This.$focus==This.$lineMove.data("tid")){
This.focusItem(This.$lineMove.data("tid"));
}
document.onmousemove=null;
document.onmouseup=null;
}
});
this.$lineOper=$("<div class='GooFlow_line_oper' style='display:none'><b class='b_l1'></b><b class='b_l2'></b><b class='b_l3'></b><b class='b_x'></b></div>");//选定线时显示的操作框
this.$workArea.append(this.$lineOper);
this.$lineOper.on("click",{inthis:this},function(e){
if(!e)e=window.event;
if(e.target.tagName!="B") return;
var This=e.data.inthis;
var id=$(this).data("tid");
switch($(e.target).attr("class")){
case "b_x":
This.delLine(id);
this.style.display="none";break;
case "b_l1":
This.setLineType(id,"lr");break;
case "b_l2":
This.setLineType(id,"tb");break;
case "b_l3":
This.setLineType(id,"sl");break;
}
});
//下面绑定当结点/线/分组块的一些操作事件,这些事件可直接通过this访问对象本身
//当操作某个单元（结点/线/分组块）被添加时，触发的方法，返回FALSE可阻止添加事件的发生
//格式function(id，type,json)：id是单元的唯一标识ID,type是单元的种类,有"node","line","area"三种取值,json即addNode,addLine或addArea方法的第二个传参json.
this.onItemAdd=null;
//当操作某个单元（结点/线/分组块）被删除时，触发的方法，返回FALSE可阻止删除事件的发生
//格式function(id，type)：id是单元的唯一标识ID,type是单元的种类,有"node","line","area"三种取值
this.onItemDel=null;
//当操作某个单元（结点/分组块）被移动时，触发的方法，返回FALSE可阻止移动事件的发生
//格式function(id，type,left,top)：id是单元的唯一标识ID,type是单元的种类,有"node","area"两种取值，线line不支持移动,left是新的左边距坐标，top是新的顶边距坐标
this.onItemMove=null;
//当操作某个单元（结点/线/分组块）被重命名时，触发的方法，返回FALSE可阻止重命名事件的发生
//格式function(id,name,type)：id是单元的唯一标识ID,type是单元的种类,有"node","line","area"三种取值,name是新的名称
this.onItemRename=null;
//当操作某个单元（结点/线）被由不选中变成选中时，触发的方法，返回FALSE可阻止选中事件的发生
//格式function(id,type)：id是单元的唯一标识ID,type是单元的种类,有"node","line"两种取值,"area"不支持被选中
this.onItemFocus=null;
//当操作某个单元（结点/线）被由选中变成不选中时，触发的方法，返回FALSE可阻止取消选中事件的发生
//格式function(id，type)：id是单元的唯一标识ID,type是单元的种类,有"node","line"两种取值,"area"不支持被取消选中
this.onItemBlur=null;
//当操作某个单元（结点/分组块）被重定义大小或造型时，触发的方法，返回FALSE可阻止重定大小/造型事件的发生
//格式function(id，type,width,height)：id是单元的唯一标识ID,type是单元的种类,有"node","line","area"三种取值;width是新的宽度,height是新的高度
this.onItemResize=null;
//当移动某条折线中段的位置，触发的方法，返回FALSE可阻止重定大小/造型事件的发生
//格式function(id，M)：id是单元的唯一标识ID,M是中段的新X(或Y)的坐标
this.onLineMove=null;
//当变换某条连接线的类型，触发的方法，返回FALSE可阻止重定大小/造型事件的发生
//格式function(id，type)：id是单元的唯一标识ID,type是连接线的新类型,"sl":直线,"lr":中段可左右移动的折线,"tb":中段可上下移动的折线
this.onLineSetType=null;
//当用重色标注某个结点/转换线时触发的方法，返回FALSE可阻止重定大小/造型事件的发生
//格式function(id，type，mark)：id是单元的唯一标识ID,type是单元类型（"node"结点,"line"转换线），mark为布尔值,表示是要标注TRUE还是取消标注FALSE
this.onItemMark=null;
if(property.useOperStack&&this.$editable){//如果要使用堆栈记录操作并提供“撤销/重做”的功能,只在编辑状态下有效
this.$undoStack=[];
this.$redoStack=[];
this.$isUndo=0;
///////////////以下是构造撤销操作/重做操作的方法
//为了节省浏览器内存空间,undo/redo中的操作缓存栈,最多只可放40步操作;超过40步时,将自动删掉最旧的一个缓存
this.pushOper=function(funcName,paras){
var len=this.$undoStack.length;
if(this.$isUndo==1){
this.$redoStack.push([funcName,paras]);
this.$isUndo=false;
if(this.$redoStack.length>40) this.$redoStack.shift();
}else{
this.$undoStack.push([funcName,paras]);
if(this.$undoStack.length>40) this.$undoStack.shift();
if(this.$isUndo==0){
this.$redoStack.splice(0,this.$redoStack.length);
}
this.$isUndo=0;
}
};
//将外部的方法加入到GooFlow对象的事务操作堆栈中,在过后的undo/redo操作中可以进行控制，一般用于对流程图以外的附加信息进行编辑的事务撤销/重做控制；
//传参func为要执行方法对象,jsonPara为外部方法仅有的一个面向字面的JSON传参,由JSON对象带入所有要传的信息；
//提示:为了让外部方法能够被UNDO/REDO,需要在编写这些外部方法实现时,加入对该方法执行后效果回退的另一个执行方法的pushExternalOper
this.pushExternalOper=function(func,jsonPara){
this.pushOper("externalFunc",[func,jsonPara]);
};
//撤销上一步操作
this.undo=function(){
if(this.$undoStack.length==0) return;
var tmp=this.$undoStack.pop();
this.$isUndo=1;
if(tmp[0]=="externalFunc"){
tmp[1][0](tmp[1][1]);
}
else{
//传参的数量,最多支持6个.
switch(tmp[1].length){
case 0:this[tmp[0]]();break;
case 1:this[tmp[0]](tmp[1][0]);break;
case 2:this[tmp[0]](tmp[1][0],tmp[1][1]);break;
case 3:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2]);break;
case 4:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2],tmp[1][3]);break;
case 5:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2],tmp[1][3],tmp[1][4]);break;
case 6:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2],tmp[1][3],tmp[1][4],tmp[1][5]);break;
}
}
};
//重做最近一次被撤销的操作
this.redo=function(){
if(this.$redoStack.length==0) return;
var tmp=this.$redoStack.pop();
this.$isUndo=2;
if(tmp[0]=="externalFunc"){
tmp[1][0](tmp[1][1]);
}
else{
//传参的数量,最多支持6个.
switch(tmp[1].length){
case 0:this[tmp[0]]();break;
case 1:this[tmp[0]](tmp[1][0]);break;
case 2:this[tmp[0]](tmp[1][0],tmp[1][1]);break;
case 3:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2]);break;
case 4:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2],tmp[1][3]);break;
case 5:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2],tmp[1][3],tmp[1][4]);break;
case 6:this[tmp[0]](tmp[1][0],tmp[1][1],tmp[1][2],tmp[1][3],tmp[1][4],tmp[1][5]);break;
}
}
};
}
$(document).keydown({inthis:this},function(e){
//绑定键盘操作
var This=e.data.inthis;
if(This.$focus=="")return;
switch(e.keyCode){
case 46://删除
This.delNode(This.$focus,true);
This.delLine(This.$focus);
break;
}
});
}
}
GooFlow.prototype = {
useSVG: "",
getSvgMarker: function (id, color) {
var m = document.createElementNS("http://www.w3.org/2000/svg", "marker");
m.setAttribute("id", id);
m.setAttribute("viewBox", "0 0 6 6");
m.setAttribute("refX", 5);
m.setAttribute("refY", 3);
m.setAttribute("markerUnits", "strokeWidth");
m.setAttribute("markerWidth", 6);
m.setAttribute("markerHeight", 6);
m.setAttribute("orient", "auto");
var path = document.createElementNS("http://www.w3.org/2000/svg", "path");
path.setAttribute("d", "M 0 0 L 6 3 L 0 6 z");
path.setAttribute("fill", color);
path.setAttribute("stroke-width", 0);
m.appendChild(path);
return m;
},
initDraw: function (id, width, height) {
var elem;
if (GooFlow.prototype.useSVG != "") {
this.$draw = document.createElementNS("http://www.w3.org/2000/svg", "svg"); //可创建带有指定命名空间的元素节点
this.$workArea.prepend(this.$draw);
var defs = document.createElementNS("http://www.w3.org/2000/svg", "defs");
this.$draw.appendChild(defs);
defs.appendChild(GooFlow.prototype.getSvgMarker("arrow1", "#15428B"));
defs.appendChild(GooFlow.prototype.getSvgMarker("arrow2", "#ff3300"));
defs.appendChild(GooFlow.prototype.getSvgMarker("arrow3", "#ff3300"));
}
else {
this.$draw = document.createElement("v:group");
this.$draw.coordsize = width * 3 + "," + height * 3;
this.$workArea.prepend("<div class='GooFlow_work_vml' style='position:relative;width:" + width * 3 + "px;height:" + height * 3 + "px'></div>");
this.$workArea.children("div")[0].insertBefore(this.$draw, null);
}
this.$draw.id = id;
this.$draw.style.width = width * 3 + "px";
this.$draw.style.height = +height * 3 + "px";
//绑定连线的点击选中以及双击编辑事件
var tmpClk = null;
if (GooFlow.prototype.useSVG != "") tmpClk = "g";
else tmpClk = "PolyLine";
if (this.$editable) {
$(this.$draw).delegate(tmpClk, "click", { inthis: this }, function (e) {
e.data.inthis.focusItem(this.id, true);
});
$(this.$draw).delegate(tmpClk, "dblclick", { inthis: this }, function (e) {
var oldTxt, x, y, from, to;
var This = e.data.inthis;
if (GooFlow.prototype.useSVG != "") {
oldTxt = this.childNodes[2].textContent;
from = this.getAttribute("from").split(",");
to = this.getAttribute("to").split(",");
} else {
oldTxt = this.childNodes[1].innerHTML;
var n = this.getAttribute("fromTo").split(",");
from = [n[0], n[1]];
to = [n[2], n[3]];
}
if (This.$lineData[this.id].type == "lr") {
from[0] = This.$lineData[this.id].M;
to[0] = from[0];
}
else if (This.$lineData[this.id].type == "tb") {
from[1] = This.$lineData[this.id].M;
to[1] = from[1];
}
x = (parseInt(from[0], 10) + parseInt(to[0], 10)) / 2 - 60;
y = (parseInt(from[1], 10) + parseInt(to[1], 10)) / 2 - 12;
var t = getElCoordinate(This.$workArea[0]);
This.$textArea.val(oldTxt).css({ display: "block", width: 120, height: 14,
left: t.left + x - This.$workArea[0].parentNode.scrollLeft,
top: t.top + y - This.$workArea[0].parentNode.scrollTop
}).data("id", This.$focus).focus();
This.$workArea.parent().one("mousedown", function (e) {
if (e.button == 2) return false;
This.setName(This.$textArea.data("id"), This.$textArea.val(), "line");
This.$textArea.val("").removeData("id").hide();
});
});
}
},
initGroup: function (width, height) {
this.$group = $("<div class='GooFlow_work_group' style='width:" + width * 3 + "px;height:" + height * 3 + "px'></div>"); //存放背景区域的容器
this.$workArea.prepend(this.$group);
if (!this.$editable) return;
//区域划分框操作区的事件绑定
this.$group.on("mousedown", { inthis: this }, function (e) {//绑定RESIZE功能以及移动功能
if (e.button == 2) return false;
var This = e.data.inthis;
if (This.$nowType != "group") return;
if (This.$textArea.css("display") == "block") {
This.setName(This.$textArea.data("id"), This.$textArea.val(), "area");
This.$textArea.val("").removeData("id").hide();
return false;
};
if (!e) e = window.event;
var cursor = $(e.target).css("cursor");
var id = e.target.parentNode;
switch (cursor) {
case "nw-resize": id = id.parentNode; break;
case "w-resize": id = id.parentNode; break;
case "n-resize": id = id.parentNode; break;
case "move": break;
default: return;
}
id = id.id;
var hack = 1;
if (navigator.userAgent.indexOf("8.0") != -1) hack = 0;
var ev = mousePosition(e), t = getElCoordinate(This.$workArea[0]);
var X, Y;
X = ev.x - t.left + This.$workArea[0].parentNode.scrollLeft;
Y = ev.y - t.top + This.$workArea[0].parentNode.scrollTop;
if (cursor != "move") {
This.$ghost.css({ display: "block",
width: This.$areaData[id].width - 2 + "px", height: This.$areaData[id].height - 2 + "px",
top: This.$areaData[id].top + t.top - This.$workArea[0].parentNode.scrollTop + hack + "px",
left: This.$areaData[id].left + t.left - This.$workArea[0].parentNode.scrollLeft + hack + "px", cursor: cursor
});
var vX = (This.$areaData[id].left + This.$areaData[id].width) - X;
var vY = (This.$areaData[id].top + This.$areaData[id].height) - Y;
}
else {
var vX = X - This.$areaData[id].left;
var vY = Y - This.$areaData[id].top;
}
var isMove = false;
This.$ghost.css("cursor", cursor);
document.onmousemove = function (e) {
if (!e) e = window.event;
var ev = mousePosition(e);
if (cursor != "move") {
X = ev.x - t.left + This.$workArea[0].parentNode.scrollLeft - This.$areaData[id].left + vX;
Y = ev.y - t.top + This.$workArea[0].parentNode.scrollTop - This.$areaData[id].top + vY;
if (X < 200) X = 200;
if (Y < 100) Y = 100;
switch (cursor) {
case "nw-resize": This.$ghost.css({ width: X - 2 + "px", height: Y - 2 + "px" }); break;
case "w-resize": This.$ghost.css({ width: X - 2 + "px" }); break;
case "n-resize": This.$ghost.css({ height: Y - 2 + "px" }); break;
}
}
else {
if (This.$ghost.css("display") == "none") {
This.$ghost.css({ display: "block",
width: This.$areaData[id].width - 2 + "px", height: This.$areaData[id].height - 2 + "px",
top: This.$areaData[id].top + t.top - This.$workArea[0].parentNode.scrollTop + hack + "px",
left: This.$areaData[id].left + t.left - This.$workArea[0].parentNode.scrollLeft + hack + "px", cursor: cursor
});
}
X = ev.x - vX; Y = ev.y - vY;
if (X < t.left - This.$workArea[0].parentNode.scrollLeft)
X = t.left - This.$workArea[0].parentNode.scrollLeft;
else if (X + This.$workArea[0].parentNode.scrollLeft + This.$areaData[id].width > t.left + This.$workArea.width())
X = t.left + This.$workArea.width() - This.$workArea[0].parentNode.scrollLeft - This.$areaData[id].width;
if (Y < t.top - This.$workArea[0].parentNode.scrollTop)
Y = t.top - This.$workArea[0].parentNode.scrollTop;
else if (Y + This.$workArea[0].parentNode.scrollTop + This.$areaData[id].height > t.top + This.$workArea.height())
Y = t.top + This.$workArea.height() - This.$workArea[0].parentNode.scrollTop - This.$areaData[id].height;
This.$ghost.css({ left: X + hack + "px", top: Y + hack + "px" });
}
isMove = true;
}
document.onmouseup = function (e) {
This.$ghost.empty().hide();
document.onmousemove = null;
document.onmouseup = null;
if (!isMove) return;
if (cursor != "move")
This.resizeArea(id, This.$ghost.outerWidth(), This.$ghost.outerHeight());
else
This.moveArea(id, X + This.$workArea[0].parentNode.scrollLeft - t.left, Y + This.$workArea[0].parentNode.scrollTop - t.top);
return false;
}
});
//绑定修改文字说明功能
this.$group.on("dblclick", { inthis: this }, function (e) {
var This = e.data.inthis;
if (This.$nowType != "group") return;
if (!e) e = window.event;
if (e.target.tagName != "LABEL") return false;
var oldTxt = e.target.innerHTML;
var p = e.target.parentNode;
var x = parseInt(p.style.left, 10) + 18, y = parseInt(p.style.top, 10) + 1;
var t = getElCoordinate(This.$workArea[0]);
This.$textArea.val(oldTxt).css({ display: "block", width: 100, height: 14,
left: t.left + x - This.$workArea[0].parentNode.scrollLeft,
top: t.top + y - This.$workArea[0].parentNode.scrollTop
}).data("id", p.id).focus();
This.$workArea.parent().one("mousedown", function (e) {
if (e.button == 2) return false;
if (This.$textArea.css("display") == "block") {
This.setName(This.$textArea.data("id"), This.$textArea.val(), "area");
This.$textArea.val("").removeData("id").hide();
}
});
return false;
});
//绑定点击事件
this.$group.mouseup({ inthis: this }, function (e) {
var This = e.data.inthis;
if (This.$nowType != "group") return;
if (!e) e = window.event;
switch ($(e.target).attr("class")) {
case "rs_close": This.delArea(e.target.parentNode.parentNode.id); return false; //删除该分组区域
case "bg": return;
}
switch (e.target.tagName) {
case "LABEL": return false;
case "B": //绑定变色功能
var id = e.target.parentNode.id;
switch (This.$areaData[id].color) {
case "red": This.setAreaColor(id, "yellow"); break;
case "yellow": This.setAreaColor(id, "blue"); break;
case "blue": This.setAreaColor(id, "green"); break;
case "green": This.setAreaColor(id, "red"); break;
}
return false;
}
if (e.data.inthis.$ghost.css("display") == "none") {
var X, Y;
var ev = mousePosition(e), t = getElCoordinate(this);
X = ev.x - t.left + this.parentNode.parentNode.scrollLeft - 1;
Y = ev.y - t.top + this.parentNode.parentNode.scrollTop - 1;
var color = ["red", "yellow", "blue", "green"];
e.data.inthis.addArea(e.data.inthis.$id + "_area_" + e.data.inthis.$max, { name: "area_" + e.data.inthis.$max, left: X, top: Y, color: color[e.data.inthis.$max % 4], width: 200, height: 100 });
e.data.inthis.$max++;
return false;
}
});
},
//每一种类型结点及其按钮的说明文字
setNodeRemarks: function (remark) {
this.$tool.children("a").each(function () {
this.title = remark[$(this).attr("id").split("btn_")[1]];
});
this.$nodeRemark = remark;
},
//切换左边工具栏按钮,传参TYPE表示切换成哪种类型的按钮
switchToolBtn: function (type) {
this.$tool.children("#" + this.$id + "_btn_" + this.$nowType.split(" ")[0]).attr("class", "GooFlow_tool_btn");
if (this.$nowType == "group") {
this.$workArea.prepend(this.$group);
for (var key in this.$areaDom) this.$areaDom[key].addClass("lock").children("div:eq(1)").css("display", "none");
}
this.$nowType = type;
this.$tool.children("#" + this.$id + "_btn_" + type.split(" ")[0]).attr("class", "GooFlow_tool_btndown");
if (this.$nowType == "group") {
this.blurItem();
this.$workArea.append(this.$group);
for (var key in this.$areaDom) this.$areaDom[key].removeClass("lock").children("div:eq(1)").css("display", "");
}
if (this.$textArea.css("display") == "none") this.$textArea.removeData("id").val("").hide();
},
//增加一个流程结点,传参为一个JSON,有id,name,top,left,width,height,type(结点类型)等属性
addNode: function (id, json) {//yangyang
if (this.onItemAdd != null && !this.onItemAdd(id, "node", json)) return;
if (this.$undoStack && this.$editable) {
this.pushOper("delNode", [id]);
}
var mark = json.mark ? " item_mark" : "";
if (json.type.indexOf(" round") < 0) {
if (!json.width || json.width < 86) json.width = 86;
if (!json.height || json.height < 24) json.height = 24;
if (!json.top || json.top < 0) json.top = 0;
if (!json.left || json.left < 0) json.left = 0;
var hack = 0;
if (navigator.userAgent.indexOf("8.0") != -1) hack = 2;
this.$nodeDom[id] = $("<div class='GooFlow_item" + mark + "' id='" + id + "' style='top:" + json.top + "px;left:" + json.left + "px'><table cellspacing='1' style='width:" + (json.width - 2) + "px;height:" + (json.height - 2) + "px;'><tr><td class='ico'><b class='ico_" + json.type + "'></b></td><td>" + json.name + "</td></tr></table><div style='display:none'><div class='rs_bottom'></div><div class='rs_right'></div><div class='rs_rb'></div><div class='rs_close'></div></div></div>");
if (json.type.indexOf(" mix") > -1) this.$nodeDom[id].addClass("item_mix");
}
else {
json.width = 24; json.height = 24;
this.$nodeDom[id] = $("<div class='GooFlow_item item_round" + mark + "' id='" + id + "' style='top:" + json.top + "px;left:" + json.left + "px'><table cellspacing='0'><tr><td class='ico'><b class='ico_" + json.type + "'></b></td></tr></table><div style='display:none'><div class='rs_close'></div></div><div class='span'>" + json.name + "</div></div>");
}
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf('msie') != -1 && ua.indexOf('8.0') != -1)
this.$nodeDom[id].css("filter", "progid:DXImageTransform.Microsoft.Shadow(color=#94AAC2,direction=135,strength=2)");
this.$workArea.append(this.$nodeDom[id]);
var ss= {nodeid:id,name:json.name,left:json.left,top:json.top,type:json.type,width:json.width,height:json.height,alt:json.alt};
this.$nodeData[id] = ss; ////////////////////////////yangyang
alert(ss);
//{id:e.data.inthis.$id+"_node_"+e.data.inthis.$max,name:"node_"+e.data.inthis.$max,left:X,top:Y,type:e.data.inthis.$nowType}
++this.$nodeCount;
if (this.$editable) {
this.$nodeData[id].alt = true;
if (this.$deletedItem[id]) delete this.$deletedItem[id]; //在回退删除操作时,去掉该元素的删除记录
}
},
initWorkForNode: function () {
//绑定点击事件
this.$workArea.delegate(".GooFlow_item", "click", { inthis: this }, function (e) {
e.data.inthis.focusItem(this.id, true);
$(this).removeClass("item_mark");
});
//绑定用鼠标移动事件
this.$workArea.delegate(".ico", "mousedown", { inthis: this }, function (e) {
if (!e) e = window.event;
if (e.button == 2) return false;
var This = e.data.inthis;
if (This.$nowType == "direct") return;
var Dom = $(this).parents(".GooFlow_item");
var id = Dom.attr("id");
This.focusItem(id, true);
var hack = 1;
if (navigator.userAgent.indexOf("8.0") != -1) hack = 0;
var ev = mousePosition(e), t = getElCoordinate(This.$workArea[0]);
Dom.children("table").clone().prependTo(This.$ghost);
var X, Y;
X = ev.x - t.left + This.$workArea[0].parentNode.scrollLeft;
Y = ev.y - t.top + This.$workArea[0].parentNode.scrollTop;
var vX = X - This.$nodeData[id].left, vY = Y - This.$nodeData[id].top;
var isMove = false;
document.onmousemove = function (e) {
if (!e) e = window.event;
var ev = mousePosition(e);
if (X == ev.x - vX && Y == ev.y - vY) return false;
X = ev.x - vX; Y = ev.y - vY;
if (isMove && This.$ghost.css("display") == "none") {
This.$ghost.css({ display: "block",
width: This.$nodeData[id].width - 2 + "px", height: This.$nodeData[id].height - 2 + "px",
top: This.$nodeData[id].top + t.top - This.$workArea[0].parentNode.scrollTop + hack + "px",
left: This.$nodeData[id].left + t.left - This.$workArea[0].parentNode.scrollLeft + hack + "px", cursor: "move"
});
}
if (X < t.left - This.$workArea[0].parentNode.scrollLeft)
X = t.left - This.$workArea[0].parentNode.scrollLeft;
else if (X + This.$workArea[0].parentNode.scrollLeft + This.$nodeData[id].width > t.left + This.$workArea.width())
X = t.left + This.$workArea.width() - This.$workArea[0].parentNode.scrollLeft - This.$nodeData[id].width;
if (Y < t.top - This.$workArea[0].parentNode.scrollTop)
Y = t.top - This.$workArea[0].parentNode.scrollTop;
else if (Y + This.$workArea[0].parentNode.scrollTop + This.$nodeData[id].height > t.top + This.$workArea.height())
Y = t.top + This.$workArea.height() - This.$workArea[0].parentNode.scrollTop - This.$nodeData[id].height;
This.$ghost.css({ left: X + hack + "px", top: Y + hack + "px" });
isMove = true;
}
document.onmouseup = function (e) {
if (isMove) This.moveNode(id, X + This.$workArea[0].parentNode.scrollLeft - t.left, Y + This.$workArea[0].parentNode.scrollTop - t.top);
This.$ghost.empty().hide();
document.onmousemove = null;
document.onmouseup = null;
}
});
if (!this.$editable) return;
//绑定鼠标覆盖/移出事件
this.$workArea.delegate(".GooFlow_item", "mouseenter", { inthis: this }, function (e) {
if (e.data.inthis.$nowType != "direct") return;
$(this).addClass("item_mark");
});
this.$workArea.delegate(".GooFlow_item", "mouseleave", { inthis: this }, function (e) {
if (e.data.inthis.$nowType != "direct") return;
$(this).removeClass("item_mark");
});
//绑定连线时确定初始点
this.$workArea.delegate(".GooFlow_item", "mousedown", { inthis: this }, function (e) {
if (e.button == 2) return false;
var This = e.data.inthis;
if (This.$nowType != "direct") return;
var ev = mousePosition(e), t = getElCoordinate(This.$workArea[0]);
var X, Y;
X = ev.x - t.left + This.$workArea[0].parentNode.scrollLeft;
Y = ev.y - t.top + This.$workArea[0].parentNode.scrollTop;
This.$workArea.data("lineStart", { "x": X, "y": Y, "id": this.id }).css("cursor", "crosshair");
var line = GooFlow.prototype.drawLine("GooFlow_tmp_line", [X, Y], [X, Y], true, true);
This.$draw.appendChild(line);
});
//绑定连线时确定结束点
this.$workArea.delegate(".GooFlow_item", "mouseup", { inthis: this }, function (e) {
var This = e.data.inthis;
if (This.$nowType != "direct") return;
var lineStart = This.$workArea.data("lineStart");
if (lineStart) This.addLine(This.$id + "_line_" + This.$max, { from: lineStart.id, to: this.id, name: "" });
This.$max++;
});
//绑定双击编辑事件
this.$workArea.delegate(".GooFlow_item > .span", "dblclick", { inthis: this }, function (e) {
var oldTxt = this.innerHTML;
var This = e.data.inthis;
var id = this.parentNode.id;
var t = getElCoordinate(This.$workArea[0]);
This.$textArea.val(oldTxt).css({ display: "block", height: $(this).height(), width: 100,
left: t.left + This.$nodeData[id].left - This.$workArea[0].parentNode.scrollLeft - 24,
top: t.top + This.$nodeData[id].top - This.$workArea[0].parentNode.scrollTop + 26
})
.data("id", This.$focus).focus();
This.$workArea.parent().one("mousedown", function (e) {
if (e.button == 2) return false;
This.setName(This.$textArea.data("id"), This.$textArea.val(), "node");
This.$textArea.val("").removeData("id").hide();
});
});
this.$workArea.delegate(".ico + td", "dblclick", { inthis: this }, function (e) {
var oldTxt = this.innerHTML;
var This = e.data.inthis;
var id = $(this).parents(".GooFlow_item").attr("id");
var t = getElCoordinate(This.$workArea[0]);
This.$textArea.val(oldTxt).css({ display: "block", width: $(this).width() + 24, height: $(this).height(),
left: t.left + 24 + This.$nodeData[id].left - This.$workArea[0].parentNode.scrollLeft,
top: t.top + 2 + This.$nodeData[id].top - This.$workArea[0].parentNode.scrollTop
})
.data("id", This.$focus).focus();
This.$workArea.parent().one("mousedown", function (e) {
if (e.button == 2) return false;
This.setName(This.$textArea.data("id"), This.$textArea.val(), "node");
This.$textArea.val("").removeData("id").hide();
});
});
//绑定结点的删除功能
this.$workArea.delegate(".rs_close", "click", { inthis: this }, function (e) {
if (!e) e = window.event;
e.data.inthis.delNode(e.data.inthis.$focus);
return false;
});
//绑定结点的RESIZE功能
this.$workArea.delegate(".GooFlow_item > div > div[class!=rs_close]", "mousedown", { inthis: this }, function (e) {
if (!e) e = window.event;
if (e.button == 2) return false;
var cursor = $(this).css("cursor");
if (cursor == "pointer") { return; }
var This = e.data.inthis;
var id = This.$focus;
This.switchToolBtn("cursor");
e.cancelBubble = true;
e.stopPropagation();
var hack = 1;
if (navigator.userAgent.indexOf("8.0") != -1) hack = 0;
var ev = mousePosition(e), t = getElCoordinate(This.$workArea[0]);
This.$ghost.css({ display: "block",
width: This.$nodeData[id].width - 2 + "px", height: This.$nodeData[id].height - 2 + "px",
top: This.$nodeData[id].top + t.top - This.$workArea[0].parentNode.scrollTop + hack + "px",
left: This.$nodeData[id].left + t.left - This.$workArea[0].parentNode.scrollLeft + hack + "px", cursor: cursor
});
var X, Y;
X = ev.x - t.left + This.$workArea[0].parentNode.scrollLeft;
Y = ev.y - t.top + This.$workArea[0].parentNode.scrollTop;
var vX = (This.$nodeData[id].left + This.$nodeData[id].width) - X;
var vY = (This.$nodeData[id].top + This.$nodeData[id].height) - Y;
var isMove = false;
This.$ghost.css("cursor", cursor);
document.onmousemove = function (e) {
if (!e) e = window.event;
var ev = mousePosition(e);
X = ev.x - t.left + This.$workArea[0].parentNode.scrollLeft - This.$nodeData[id].left + vX;
Y = ev.y - t.top + This.$workArea[0].parentNode.scrollTop - This.$nodeData[id].top + vY;
if (X < 86) X = 86;
if (Y < 24) Y = 24;
isMove = true;
switch (cursor) {
case "nw-resize": This.$ghost.css({ width: X - 2 + "px", height: Y - 2 + "px" }); break;
case "w-resize": This.$ghost.css({ width: X - 2 + "px" }); break;
case "n-resize": This.$ghost.css({ height: Y - 2 + "px" }); break;
}
}
document.onmouseup = function (e) {
This.$ghost.hide();
if (!isMove) return;
if (!e) e = window.event;
This.resizeNode(id, This.$ghost.outerWidth(), This.$ghost.outerHeight());
document.onmousemove = null;
document.onmouseup = null;
}
});
},
//获取结点/连线/分组区域的详细信息
getItemInfo: function (id, type) {
switch (type) {
case "node": return this.$nodeData[id] || null;
case "line": return this.$lineData[id] || null;
case "area": return this.$areaData[id] || null;
}
},
//取消所有结点/连线被选定的状态
blurItem: function () {
if (this.$focus != "") {
var jq = $("#" + this.$focus);
if (jq.prop("tagName") == "DIV") {
if (this.onItemBlur != null && !this.onItemBlur(id, "node")) return false;
jq.removeClass("item_focus").children("div:eq(0)").css("display", "none");
}
else {
if (this.onItemBlur != null && !this.onItemBlur(id, "line")) return false;
if (GooFlow.prototype.useSVG != "") {
if (!this.$lineData[this.$focus].marked) {
jq[0].childNodes[1].setAttribute("stroke", "#5068AE");
jq[0].childNodes[1].setAttribute("marker-end", "url(#arrow1)");
}
}
else {
if (!this.$lineData[this.$focus].marked) jq[0].strokeColor = "#5068AE";
}
this.$lineMove.hide().removeData("type").removeData("tid");
if (this.$editable) this.$lineOper.hide().removeData("tid");
}
}
this.$focus = "";
return true;
},
//选定某个结点/转换线 bool:TRUE决定了要触发选中事件，FALSE则不触发选中事件，多用在程序内部调用。
focusItem: function (id, bool) {
var jq = $("#" + id);
if (jq.length == 0) return;
if (!this.blurItem()) return; //先执行"取消选中",如果返回FLASE,则也会阻止选定事件继续进行.
if (jq.prop("tagName") == "DIV") {
if (bool && this.onItemFocus != null && !this.onItemFocus(id, "node")) return;
jq.addClass("item_focus");
if (this.$editable) jq.children("div:eq(0)").css("display", "block");
this.$workArea.append(jq);
}
else {//如果是连接线
if (this.onItemFocus != null && !this.onItemFocus(id, "line")) return;
if (GooFlow.prototype.useSVG != "") {
jq[0].childNodes[1].setAttribute("stroke", "#ff3300");
jq[0].childNodes[1].setAttribute("marker-end", "url(#arrow2)");
}
else jq[0].strokeColor = "#ff3300";
if (!this.$editable) return;
var x, y, from, to;
if (GooFlow.prototype.useSVG != "") {
from = jq.attr("from").split(",");
to = jq.attr("to").split(",");
} else {
var n = jq[0].getAttribute("fromTo").split(",");
from = [n[0], n[1]];
to = [n[2], n[3]];
}
from[0] = parseInt(from[0], 10);
from[1] = parseInt(from[1], 10);
to[0] = parseInt(to[0], 10);
to[1] = parseInt(to[1], 10);
//var t=getElCoordinate(this.$workArea[0]);
if (this.$lineData[id].type == "lr") {
from[0] = this.$lineData[id].M;
to[0] = from[0];
this.$lineMove.css({
width: "5px", height: (to[1] - from[1]) * (to[1] > from[1] ? 1 : -1) + "px",
left: from[0] - 3 + "px",
top: (to[1] > from[1] ? from[1] : to[1]) + 1 + "px",
cursor: "e-resize", display: "block"
}).data({ "type": "lr", "tid": id });
}
else if (this.$lineData[id].type == "tb") {
from[1] = this.$lineData[id].M;
to[1] = from[1];
this.$lineMove.css({
width: (to[0] - from[0]) * (to[0] > from[0] ? 1 : -1) + "px", height: "5px",
left: (to[0] > from[0] ? from[0] : to[0]) + 1 + "px",
top: from[1] - 3 + "px",
cursor: "s-resize", display: "block"
}).data({ "type": "tb", "tid": id });
}
x = (from[0] + to[0]) / 2 - 35;
y = (from[1] + to[1]) / 2 + 6;
this.$lineOper.css({ display: "block", left: x + "px", top: y + "px" }).data("tid", id);
}
this.$focus = id;
this.switchToolBtn("cursor");
},
//移动结点到一个新的位置
moveNode: function (id, left, top) {
if (!this.$nodeData[id]) return;
if (this.onItemMove != null && !this.onItemMove(id, "node", left, top)) return;
if (this.$undoStack) {
var paras = [id, this.$nodeData[id].left, this.$nodeData[id].top];
this.pushOper("moveNode", paras);
}
if (left < 0) left = 0;
if (top < 0) top = 0;
$("#" + id).css({ left: left + "px", top: top + "px" });
this.$nodeData[id].left = left;
this.$nodeData[id].top = top;
//重画转换线
this.resetLines(id, this.$nodeData[id]);
if (this.$editable) {
this.$nodeData[id].alt = true;
}
},
//设置结点/连线/分组区域的文字信息
setName: function (id, name, type) {
var oldName;
if (type == "node") {//如果是结点
if (!this.$nodeData[id]) return;
if (this.$nodeData[id].name == name) return;
if (this.onItemRename != null && !this.onItemRename(id, name, "node")) return;
oldName = this.$nodeData[id].name;
this.$nodeData[id].name = name;
if (this.$nodeData[id].type.indexOf("round") > 1) {
this.$nodeDom[id].children(".span").text(name);
}
else {
this.$nodeDom[id].find("td:eq(1)").text(name);
var hack = 0;
if (navigator.userAgent.indexOf("8.0") != -1) hack = 2;
var width = this.$nodeDom[id].outerWidth();
var height = this.$nodeDom[id].outerHeight();
this.$nodeDom[id].children("table").css({ width: width - 2 + "px", height: height - 2 + "px" });
this.$nodeData[id].width = width;
this.$nodeData[id].height = height;
}
if (this.$editable) {
this.$nodeData[id].alt = true;
}
//重画转换线
this.resetLines(id, this.$nodeData[id]);
}
else if (type == "line") {//如果是线
if (!this.$lineData[id]) return;
if (this.$lineData[id].name == name) return;
if (this.onItemRename != null && !this.onItemRename(id, name, "line")) return;
oldName = this.$lineData[id].name;
this.$lineData[id].name = name;
if (GooFlow.prototype.useSVG != "") {
this.$lineDom[id].childNodes[2].textContent = name;
}
else {
this.$lineDom[id].childNodes[1].innerHTML = name;
var n = this.$lineDom[id].getAttribute("fromTo").split(",");
var x;
if (this.$lineData[id].type != "lr") {
x = (n[2] - n[0]) / 2;
}
else {
var Min = n[2] > n[0] ? n[0] : n[2];
if (Min > this.$lineData[id].M) Min = this.$lineData[id].M;
x = this.$lineData[id].M - Min;
}
if (x < 0) x = x * -1;
this.$lineDom[id].childNodes[1].style.left = x - this.$lineDom[id].childNodes[1].offsetWidth / 2 + 4 + "px";
}
if (this.$editable) {
this.$lineData[id].alt = true;
}
}
else if (type == "area") {//如果是分组区域
if (!this.$areaData[id]) return;
if (this.$areaData[id].name == name) return;
if (this.onItemRename != null && !this.onItemRename(id, name, "area")) return;
oldName = this.$areaData[id].name;
this.$areaData[id].name = name;
this.$areaDom[id].children("label").text(name);
if (this.$editable) {
this.$areaData[id].alt = true;