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skeleton.js
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skeleton.js
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/**
* @author Chanakya Bhardwaj/www.chanakyabhardwaj.com
*/
var gzi=0;
var allDivs=[];
var objs=[];
var objCnt=0;
var containInfo=[];
var str='';
var visited=[];
function init(){
allDivs=document.getElementsByTagName('DIV');
};
window.onload=init;
function drag(elem,ev){
var elemTomove;
var dx,dy;
elemTomove=elem;
elemTomove.style.zIndex=++gzi;
elemTomove.style.opacity=0.8;
dx=elem.offsetLeft-ev.clientX;
dy=elem.offsetTop-ev.clientY;
//Keep a flag to see which blocks have been used.
elem.used=1;
if (document.addEventListener) {
document.addEventListener('mousemove', moveElem, false);
document.addEventListener('mouseup', handleListener, false);
}
else if (document.attachEvent) { // IE 5+ Event Model
elemTomove.setCapture( );
elemTomove.attachEvent("onmousemove", moveElem);
elemTomove.attachEvent("onmouseup", handleListener);
elemTomove.attachEvent("onlosecapture", handleListener);
}
else { // IE 4 Event Model
var oldmovehandler = document.onmousemove;
var olduphandler = document.onmouseup;
document.onmousemove = moveElem;
document.onmouseup = handleListener;
}
function moveElem(e){
if (!e) e = window.event; // IE Event Model
elemTomove.style.top=e.clientY +dy + 'px';
elemTomove.style.left=e.clientX +dx + 'px';
};
function handleListener(e){
if (!e) e = window.event; // IE Event Model
if (document.removeEventListener) {
document.removeEventListener('mousedown', drag, false);
document.removeEventListener('mousemove', moveElem, false);
document.removeEventListener('mouseup', handleListener, false);
}
else if (document.detachEvent) { // IE 5+ Event Model
elemTomove.detachEvent("onlosecapture", handleListener);
elemTomove.detachEvent("onmouseup", handleListener);
elemTomove.detachEvent("onmousemove", moveElem);
elemTomove.releaseCapture( );
}
else { // IE 4 Event Model
document.onmouseup = olduphandler;
document.onmousemove = oldmovehandler;
}
};
};
function getDim(obj){
var wstring=obj.style.width;
var w=parseInt(wstring.substring(0,wstring.length-2));
var hstring=obj.style.height;
var h=parseInt(hstring.substring(0,hstring.length-2));
obj.x1=obj.offsetLeft;
obj.y1=obj.offsetTop;
obj.x2=obj.x1+w;
obj.y2=obj.y1;
obj.x3=obj.x1+w;
obj.y3=obj.y1+h;
obj.x4=obj.x1;
obj.y4=obj.y1+h;
};
function createMarkup(){
for(var x=0;x<containInfo.length;x++){
rowMarkup(containInfo[x]);
};
document.getElementById("output").value=str;
str="";
}
function rowMarkup(row){
if(visited[row.num]==0){
var numzeros=0;
str+=' <' + row.uname +'> ';
for(var i=0;i<row.length; i++){
if((row[i]==0) && (visited[i]==0)){
numzeros++;
rowMarkup(containInfo[i]);
}
}
visited[row.num]=1;
str+=' </' + row.uname +'> ';
};
}
function recordContainData(){
for(var c=0;c<objs.length;c++){
containInfo[c]=containData(objs[c]);
containInfo[c].uname=objs[c].id;
containInfo[c].num=c;
};
};
function containData(obj){
var arr=[];
var i=0;
//arr.uname=obj.id;
for(var c=0;c<objs.length;c++){
if((objs[c].x1 > obj.x1) && (objs[c].x2 < obj.x2) && (objs[c].y1 > obj.y1) && (objs[c].y4 < obj.y4)){
//obj contains objs[c].
arr[c]=0;
}
else if (((objs[c].x1 > obj.x2) && (objs[c].x1 > obj.x2)) || ((objs[c].x2 < obj.x1) && (objs[c].x2 < obj.x1)) || ((objs[c].y4 < obj.y1) && (objs[c].y1 < obj.y1)) || ((objs[c].y1 > obj.y4) && (objs[c].y4 > obj.y4))){
//obj and objs[c] are totally separate.
arr[c]=1;
}
else if((obj.x1 == objs[c].x1) && (obj.x2 == objs[c].x2) && (obj.y1 == objs[c].y1) && (obj.y4 == objs[c].y4)){
//exactly overlapping.
arr[c]=3;
}
else{
//overlapping.
arr[c]=2;
};
};
return arr;
};
function genSkeleton(){
allDivs=[];
objs=[];
objCnt=0;
containInfo=[];
str='';
visited=[];
init();
for(var c=0;c<allDivs.length;c++){
if((allDivs[c].className=='divs' || allDivs[c].className=='tables' || allDivs[c].className=='paras')&&(allDivs[c].used==1)){
objs[objCnt]=allDivs[c];
visited[objCnt++]=0;
}
};
for(var c=0;c<objs.length;c++){
//get the coordinates of each block.
getDim(objs[c]);
};
objs.sort(function(x,y){return (x.y1-y.y1);});
recordContainData();
createMarkup();
};