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bomlib.js
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bomlib.js
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var containerList = ["BODY","DIV","UL","DL","P","TABLE","TD","SECTION","HEADER","FOOTER","ASIDE","NAV","ARTICLE","OBJECT","IFRAME","INS"];
var contentList = ["SPAN","A","LI","DT","DD","H1","H2","H3","H4","H5","IMG","INS","INPUT","P"];
var excludeList = ["SCRIPT","STYLE","AREA","HEAD","META","FRAME","FRAMESET","BR","HR","NOSCRIPT"];
var ignoreList = ["HTML","TBODY","TR","PARAM","LINK"];
var ac = 5; //0 small blocks <--> 10 big blocks
var dc = 50; //50px max separation distance between blocks for merging process
var tc = 1; //minimum characters to be consider a valid text element not WS or valid innertext string
var dx = dc; //max distance between blocks and page boundaries
var dy = dc; // used to determine labels to logic objects. Using DC parameter as default.
var blocks = []; //list of all logic objects (blocks)
var geoList = []; //list if all geometric objects (content)
var bomversion = "1.1";
var colors = {PAGE:'#FFFF00',CONTAINER:'#34FF00',CONTENT_CONTAINER:'#6FBEE5',CONTENT:'blue',DEFAULT:'magenta'};
var page; //page logical object
var displayBlocks = true; //for debugging. Write DIVS representing blocks in live web page.
/* ViXML generation functions */
/* escape special characters from link title */
function code(s) {
var res="";
if (!s) return "";
res = s.replace(/&/g,"");
res = res.replace(/>/g,"");
res = res.replace(/</g,"");
res = res.replace(/"/g,"");
res = res.replace(/(['"])/g, "");
res = res.replace(/<(?:.|\n)*?>/gm, '');
res = res.replace(/<[^>]+>/ig,"");
res = res.replace(/\s+/g, ' ');
res = res.replace(/&/g,"");
return res;
}
/* get ViXML document */
function getViXML() {
var cnt = "<XML>\n";
cnt+="<Document url='"+(document.URL)+"' Title='"+code(document.title)+"' Version='"+bomversion+"' Pos='WindowWidth||PageRectLeft:"+documentDim().w+" WindowHeight||PageRectTop:"+documentDim().h+" ObjectRectWith:0 ObjectRectHeight:0'>\n";
cnt+=getViXMLObject(page,0,1);
cnt+="</Document>\n";
cnt+="</XML>";
return(cnt);
}
/* get the image list of a block */
function getImageList(obj) {
var t="<Imgs ID='#ID#' IDList='$ID_LIST_IMAGES$'>\n";
var a = "";
var list = [];
var col = [];
for (var m=0;m<obj.geometricObjects.length;m++) {
var geo = obj.geometricObjects[m];
axc = obj.geometricObjects[m].element.getElementsByTagName("img");
//alert("img " +axc.length);
for (p=0;p<axc.length;p++) {
col.push(axc[p]);
}
axc = obj.geometricObjects[m].element.getElementsByTagName("input");
//alert("input " +axc.length);
for (p=0;p<axc.length;p++) {
if (axc[p].type == "image") {
col.push(axc[p]);
}
}
}
col = col.filter(function(elem, pos) {return col.indexOf(elem) == pos;});
for (var i=0;i<col.length;i++) {
var img = col[i];
var pt=img.getAttribute("alt");
a = "<img ID='#ID#' Name=\""+code(pt)+"\" Src='"+code(img.getAttribute('src'))+"'/>"
var c = CryptoJS.MD5(a);
list.push(c);
t += a.replace('#ID#',c)+"\n";
}
t+="</Imgs>\n";
t = t.replace('$ID_LIST_IMAGES$',list.join(","));
t = t.replace("#ID#",CryptoJS.MD5(t));
return(t);
}
/* get the link list of a block */
function getLinksList(obj) {
var t="<Links ID='#ID#' IDList='$ID_LIST_LINKS$'>\n";
var a = "";
var list = [];
var col = [];
for (var m=0;m<obj.geometricObjects.length;m++) {
var geo = obj.geometricObjects[m];
axc = obj.geometricObjects[m].element.getElementsByTagName("a");
for (p=0;p<axc.length;p++) {
col.push(axc[p]);
}
}
col = col.filter(function(elem, pos) {return col.indexOf(elem) == pos;});
for (var i=0;i<col.length;i++) {
var link = col[i];
var pt=$(link).text();
all = link.getAttribute('href');
all = code(all);
a = "<link ID='#ID#' Name=\""+code(pt)+"\" Adr='"+all+"'/>"
var c = CryptoJS.MD5(a);
list.push(c);
t += a.replace('#ID#',c)+"\n";
}
t+="</Links>\n";
t = t.replace('$ID_LIST_LINKS$',list.join(","));
t = t.replace("#ID#",CryptoJS.MD5(t));
return(t);
}
/* get text nodes recursively in a block */
function collectTextNodes(element, texts) {
if (element.tagName.toLowerCase() == "script") return;
for (var child= element.firstChild; child!==null; child= child.nextSibling) {
if (child.nodeType===3)
texts.push(child);
else if (child.nodeType===1)
collectTextNodes(child, texts);
}
}
/* get text nodes recursively in a block */
function getTextWithSpaces(element) {
if (element.tagName.toLowerCase() == "script") return "";
var texts= [];
collectTextNodes(element, texts);
for (var i= texts.length; i-->0;)
texts[i]= texts[i].data.replace("'","").replace('"',"").replace("&","&");
return texts.join(' ');
}
function getText(obj) {
var all="";
for (var i=0;i<obj.geometricObjects.length;i++) {
var geo = obj.geometricObjects[i];
if (geo) {
if (!isExcluded(geo.element)) {
$(geo.element).find('script').remove();
all += getTextWithSpaces(geo.element)
}
}
}
all = all.replace(/<[^>]+>/ig,"");
all = all.replace(/\s+/g, ' ');
all = all.replace(/&/,"");
all = code(all);
var txt = "<Txts ID=\""+CryptoJS.MD5(all)+"\" Txt=\""+all+"\"/>";
return(txt);
}
/* get ViXML for a block */
function getViXMLObject(obj,level,pid) {
if (!obj) return;
var xml = "";
var block="";
var internal = "";
var spc="";
for (var j=0;j<level;j++) spc+=" ";
if (obj.terminal()) {
internal= getLinksList(obj);
internal+=spc+ getImageList(obj);
internal+=spc+getText(obj);
block+=spc+"<Block Ref='Block"+pid+"' leafblock='1' internal_id='"+obj.label+"' ID='"+CryptoJS.MD5(internal)+"' Pos='WindowWidth||PageRectLeft:" +obj.dim.x+ " WindowHeight||PageRectTop:"+obj.dim.y+" ObjectRectWidth:"+obj.dim.w+" ObjectRectHeight:"+obj.dim.h+"' Doc=''>\n"
block+=internal;
} else {
var tt=spc+"<Block Ref='Block"+pid+"' internal_id='"+obj.label+"' ID='#ID#' Pos='WindowWidth||PageRectLeft:" +obj.dim.x+ " WindowHeight||PageRectTop:"+obj.dim.y+" ObjectRectWidth:"+obj.dim.w+" ObjectRectHeight:"+obj.dim.h+"' Doc=''>\n"
block += tt.replace("#ID#","");
}
xml+=block;
for (var j=0;j<obj.children.length;j++) {
block = obj.children[j];
if (block) {
xml+=getViXMLObject(block,level+1,pid+"."+j);
}
}
xml+= spc+"</Block>\n"
return(xml);
}
/*
* Get document geometry width and height;
* */
function documentDim(win,doc) {
var w,h;
if (win) w=win; else win=window;
if (doc) d=doc; else doc=document;
return {w:$(doc).width(),h:$(doc).height()};
}
/* count the children of an element */
function elementCount(element) {
if (!element) return;
if (isWS(element)) return;
if (isComment(element)) return;
if (isText(element)) return;
var count=0;
for (var i=0;i<obj.childNodes.length;i++) {
var child = obj.childNodes[i];
if (child && !isWS(child) && !isComment(child) && !isText(child))
count++;
}
return(count)
}
/*
* count the children of a block
* onlyLeaves=true count only leaves or terminal blocks
*/
function blockCount(obj,onlyLeaves) {
if (!obj) return;
if (!obj.block) return;
var count;
if (onlyLeaves && countChildren(obj)>0)
count=0;
else
count=1;
for (var i=0;i<obj.children.length;i++) {
if (obj && obj.block) {
dat = blockCount(obj.children[i],onlyLeaves);
if (dat) {
count+=dat
}
}
}
return(count);
}
/*
* build logic objects in base of geometric objects go's
*/
function prepareLogicStructure(go,parent) {
if (!go) return;
var log,gchild,lchild;
log=parent;
if (go.children.length == 1) {
log = prepareLogicStructure(go.children[0],parent);
} else {
if ( (included(go.type,["CONTAINER","CONTENT_CONTAINER","CONTENT","DEFAULT"])) && (go.geometry) )
{
log = createNewLogicalObject(go,parent);
}
for (var i=0;i<go.children.length;i++) {
gchild = go.children[i];
prepareLogicStructure(gchild,log);
}
}
return(log);
}
/*
* used for debuging in local javascript console
*/
function debug(s) {
console.log(s);
}
/*
* main function call to perform segmentation
* win: the browser window object, frame, etc.
* pac: parameter of granularity
* pdc: distance parameter of separation between blocks (used for merging)
* proclog: process logic structure. True for automatic segmentation
*/
function startSegmentation(win,pac,pdc,proclog) {
contentWindow = win;
contentDocument = contentWindow.document;
ac = pac;
dc = pdc;
debug("Starting with AC:"+ac+", DC:"+dc+"px, proclog:"+proclog);
var root = contentDocument.getElementsByTagName('BODY')[0];
debug("Processing Content Structure");
processContentStructure(root,0);
debug("Processing Geometric Structure");
var georoot = processGeometricStructure(root,undefined);
debug("Pre-processing Logic Structure");
page = prepareLogicStructure(georoot);
debug("Processing Logic Structure");
//console.log(root,page)
processLogicStructure(page,0,1,undefined);
return(getViXML());
}
/*
* used to send segmentation results to a remote server
*/
function post_to_url(path, params, method) {
method = method || "post"; // Set method to post by default if not specified.
var form = document.createElement("form");
form.setAttribute("method", method);
form.setAttribute("action", path);
for(var key in params) {
if(params.hasOwnProperty(key)) {
var hiddenField = document.createElement("input");
hiddenField.setAttribute("type", "hidden");
hiddenField.setAttribute("name", key);
hiddenField.setAttribute("value", params[key]);
form.appendChild(hiddenField);
}
}
outputDocument.body.appendChild(form);
form.submit();
}
/* build the xpath of an element */
function getXPath(elt) {
var path = "";
for (; elt && elt.nodeType == 1; elt = elt.parentNode)
{
idx = getElementIdx(elt);
xname = elt.tagName;
if (idx > 1) xname += "[" + idx + "]";
path = "/" + xname + path;
}
return path.toLowerCase();
}
/* auxiliar function of xpath one*/
function getElementIdx(elt)
{
var count = 1;
for (var sib = elt.previousSibling; sib ; sib = sib.previousSibling)
{
if(sib.nodeType == 1 && sib.tagName == elt.tagName) count++
}
return count;
}
/*
* get the absolute position of an element.
* */
function getRect(obj) {
if (obj.tagName.toUpperCase() == "BODY") {
return {x:0, y:0, w:documentDim().w, h:documentDim().h}
} else {
//~ r=obj.getBoundingClientRect();
return {x:$(obj).offset().left, y:$(obj).offset().top, w:$(obj).width(), h:$(obj).height()};
}
}
/*is an element a text node? */
function isText(element) {
if (element) {
if (element.nodeName=="#text") {
return(element.data.trim()!="");
} else
return(false);
} else {
return(false);
}
}
/*is an element a whitespace? */
function isWS(element) {
if (element) {
if (element.nodeType == 3) {
if (element.data) {
return(element.data.trim()=="");
} else {
return false
}
} else {
return false;
}
} else {
return(false);
}
}
/*is an element a comment node? */
function isComment(element) {
if (element) {
if (element.nodeType == 8) {
return true;
} else {
return false;
}
} else {
return(false);
}
}
/*is an element the root element? */
function isRoot(element) {
if (element) {
if (element.tagName.toUpperCase() == "BODY") {
return true;
} else {
return false;
}
} else {
return(false);
}
}
/*belongs an element to the content-container category ? */
function isContentContainer(element) {
if (!element) return;
if (isContainer(element)) {
var etc=0;
var child;
var n=element.childNodes.length;
for (var i=0; i<element.childNodes.length; i++) {
child = element.childNodes[i];
if (isContent(child)) {
etc++;
}
if (isWS(child) || isComment(child) || !visible(child) || isExcluded(child) || isIgnored(child)) {
n--;
}
}
return(etc == n);
} else {
return(false);
}
}
/*belongs an element to the default category ? */
function isDefault(element) {
if (element.childNodes.length==0) {
return(true)
}
var ws = 0;
for (var i=0; i<element.childNodes.length; i++) {
if (isWS(element.childNodes[i])) {
ws++;
}
}
return(element.childNodes.length == ws);
}
/*belongs an element to the content category ? */
function isContent(element) {
if (!element) return;
if (!element.tagName) return;
if (isWS(element)) return(false);
if (isComment(element)) return(false);
if (isText(element)) return(true);
var itis = false;
for (var i=0;i<contentList.length;i++) {
if (contentList[i].toUpperCase() == element.tagName.toUpperCase()) {
itis = true;
break;
}
}
return(itis);
}
/*belongs an element to the container category ? */
function isContainer(element) {
if (!element) return(false);
if (isWS(element)) return(false);
if (isComment(element)) return(false);
if (isText(element)) return(false);
var itis = false;
for (var i=0;i<containerList.length;i++) {
if (containerList[i].toUpperCase() == element.tagName.toUpperCase()) {
itis = true;
break;
}
}
return(itis);
}
/*is the element excluded of processing? */
function isExcluded(element) {
if (!element) return(false);
if (isWS(element)) return(false);
if (isComment(element)) return(false);
if (isText(element)) return(false);
if (!element) return(false);
var itis = false;
for (var i=0;i<excludeList.length;i++) {
if (excludeList[i] && element.tagName) {
if (excludeList[i].toUpperCase() == element.tagName.toUpperCase()) {
itis = true;
break;
}
}
}
return(itis);
}
/*is the element ignored in processing? */
function isIgnored(element) {
if (!element) return(false);
if (isWS(element)) return(false);
if (isComment(element)) return(false);
if (isText(element)) return(false);
if (!element) return(false);
var itis = false;
for (var i=0;i<ignoreList.length;i++) {
if (ignoreList[i].toUpperCase() == element.tagName.toUpperCase()) {
itis = true;
break;
}
}
return(itis);
}
/*which category the element belongs */
function BOMType(element) {
if (!element) return(null);
if (isWS(element)) return(null);
if (isComment(element)) return(null);
if (isText(element)) return(null);
if (isExcluded(element)) return(null);
if (!visible(element)) return(null);
if (!isContent(element)) {
var txn = $(element).text();
if (txn) {
if ((element.children.length==0) && (txn.trim()=="")) {
return(false);
}
}
}
//this bother on chrome evaluation with this pluging
if (element.getAttribute("id")) {
if (element.getAttribute("id").toLowerCase() == "window-resizer-tooltip")
return false;
}
if (isDefault(element)) return "DEFAULT";
if (isContent(element)) return "CONTENT";
if (isContentContainer(element)) return "CONTENT_CONTAINER";
if (isContainer(element)) return "CONTAINER";
if (isRoot(element)) return "PAGE";
return(null);
}
/*build the content structure DOM -> geometric objects */
function processContentStructure(element,level) {
if (!element) return;
if (isWS(element)) return(false);
if (isComment(element)) return(false);
if (isText(element)) {
var span = contentDocument.createElement("span");
span.setAttribute("class","bomwrapper");
var par = element.parentNode;
span.appendChild(element);
par.appendChild(span);
element = span;
element.setAttribute("bomtype","CONTENT");
return;
}
if (element.getAttribute("bomtype")) return(false);
if (isExcluded(element)) return(false);
if (!visible(element)) return(false);
if (!valid(element)) return(false);
if (element.getAttribute('id')=="window-resizer-tooltip") return(false);
if (isIgnored(element)) {
for (var i=0; i<element.childNodes.length; i++) {
processContentStructure(element.childNodes[i],level+1);
}
return;
}
var tn = element.tagName;
var bt = BOMType(element);
element.setAttribute("bomtype",bt);
for (var i=0; i<element.childNodes.length; i++) {
processContentStructure(element.childNodes[i],level+1);
}
}
/*refName -> name class#id */
function refName(element) {
if (!element) return "";
if (isWS(element)) return("");
if (isComment(element)) return("");
if (isText(element)) return("");
if (isExcluded(element)) return("");
var name = "(nodef)";
if (element.tagName) name = element.tagName;
if (element.getAttribute("id")) name = name + "." + element.getAttribute("id");
if (element.className) name = name + " " + element.className
return(name);
}
/*process a geometric object*/
function processGeometricObject(element) {
var bt = BOMType(element);
var geo;
if (bt) {
element.setAttribute("bomtype",bt);
var dim = getRect(element);
var r = dim.x+" "+dim.y+" "+dim.w+" "+dim.h;
var a = relativeArea(element);
element.setAttribute("bomgeometry",r);
element.setAttribute("bomarea",a);
element.setAttribute("bomid","C"+(1000+Math.random(1000)));
geo = createNewGeometricObject(element,element.parent);
}
return(geo);
}
/* process the geometric structure */
function processGeometricStructure(element,parent) {
if (!element) return;
if (isWS(element)) return(false);
if (isComment(element)) return(false);
if (isText(element)) return(false);
if (isExcluded(element)) return(false);
var dim = getRect(element);
if ((dim.w<10) || (dim.h<10)) {
//SKIP IT DO NOT CREATE GEOMETRIC OBJECT
return;
}
var geo = createNewGeometricObject(element,parent);
var k = 0;
for (var i=0; i<element.childNodes.length; i++) {
child = element.childNodes[i];
if (!isWS(child) && !isComment(child) && !isText(child) && !isExcluded(child)) {
k++;
processGeometricStructure(element.childNodes[i],geo);
}
}
return geo;
}
/* is visual cues present: bold, font sizes, background colors, etc.*/
function visuallyDifferent(element) {
if (element) {
if (!included(element.style.backgroundColor.toLowerCase(),["","transparent","rgba(0,0,0,0)"])) {
return(true);
}
}
return(false);
}
/* get set of points of block geometry*/
function getPolygonPoints(dim) {
var res = [];
res = res.concat([dim.x,dim.y]);
res = res.concat([dim.x,dim.y+dim.h]);
res = res.concat([dim.x+dim.w,dim.y+dim.h]);
res = res.concat([dim.x+dim.w,dim.y]);
return(res);
}
/* get set of X-axis of block geometry*/
function getX(points) {
var x=[];
for (var i=0;i<points.length;i+=2) {
x.push(points[i]);
}
return(x);
}
/* get set of Y-axis of block geometry*/
function getY(points) {
var y=[];
for (var i=1;i<points.length;i+=2) {
y.push(points[i]);
}
return(y);
}
/* is an element already visited */
function visited(element) {
if (!element) return(true);
var res;
if (res = element.getAttribute("visited")) {
if (res == "true") {
return(true);
} else {
return(false);
}
} else {
return(false);
}
}
/*is an element visible?*/
function visible(obj) {
if (isWS(obj)) return(false);
if (isComment(obj)) return(false);
if (isText(obj)) return(true);
if (isExcluded(obj)) return(false);
var xvis=true;
var xarea=parseFloat((Math.abs(getRect(obj).w-getRect(obj).x))*(Math.abs(getRect(obj).h-getRect(obj).y)));
if (obj.style) {
xvis = (included(obj.style.visibility.toUpperCase(),["","VISIBLE","INHERIT"])) && (!included(obj.style.display.toUpperCase(),["NONE"]));
}
return(xvis && (xarea>0));
}
/*is an element valid?*/
function valid(obj) {
var val = false;
var c=0;
var ws=0;
var vok=0;
var child;
if (isContent(obj)) vok++;
for (var i=0;i<obj.childNodes.length;i++) {
child = obj.childNodes[i];
if (isWS(child)) {
ws++;
} else {
if (isText(child)) {
if (child.data.trim().length>=tc) { //mejorar el conteo evitar ws internos
vok++;
}
} else {
if (isContent(child)) { //i.e.: <img/>, <br/> tags
vok++;
} else {
if (!isExcluded(child) && !isComment(child) ) {
if (valid(child))
vok++;
}
}
}
}
}
return(vok>0);
}
/* calcul the distance between two blocks */
function distance(log1,log2) {
var closest = {obj:undefined, value:9999999999};
ileft = 0
itop = 1
iright = 2
ibottom = 3
poly1 = getPolygonPoints(log1.dim);
dleft = PolyK.ClosestEdge (poly1,log2.dim.x,log2.dim.y);
dtop = PolyK.ClosestEdge (poly1,log2.dim.x,log2.dim.y+log2.dim.h);
dright = PolyK. ClosestEdge (poly1,log2.dim.x+log2.dim.w,log2.dim.y+log2.dim.h);
dbottom = PolyK.ClosestEdge (poly1,log2.dim.x+log2.dim.w,log2.dim.y);
if (dleft.dist < closest.value) {
closest.obj = blocks[i];
closest.value = dleft.dist;
}
if (dtop.dist < closest.value) {
closest.obj = blocks[i];
closest.value = dtop.dist;
}
if (dright.dist < closest.value) {
closest.obj = blocks[i];
closest.value = dright.dist;
}
if (dbottom.dist < closest.value) {
closest.obj = blocks[i];
closest.value = dbottom.dist;
}
return(closest);
}
/*create a new logic object based on a geometric object geo*/
function createNewLogicalObject(geo,parent) {
var log = new logicalObject();
log.parent = parent;
log.addGeometricObject(geo);
log.setLabel();
if (parent) parent.children.push(log);
blocks.push(log);
return(log);
}
/* create a new geometric object based on an element*/
function createNewGeometricObject(element,parent) {
var geo = new geometricObject();
geo.addContentElement(element);
geo.parent = parent;
if (parent) parent.children.push(geo);
geoList.push(geo);
return(geo);
}
/*are they? and which aligment exists between log1 and log2: horizontal or vertical?*/
function getAligment(log1,log2) {
if ( (Math.abs(log1.dim.x-log2.dim.x)<dc) && (Math.abs(log1.dim.w-log2.dim.w)<dc)) {
return("V");
} else {
if ( (Math.abs(log1.dim.y-log2.dim.y)<dc) && (Math.abs(log1.dim.h-log2.dim.h)<dc)) {
return("H");
} else {
return(null);
}
}
}
/*remove subblock*/
function removeLogicObject(log) {
if (!log) return;
//console.log("delete "+log.id+" "+log.label)
if (log.parent) {
for(var i=0;i<log.children.length;i++) {
var child = log.children[i];
if (child) {
child.parent = log.parent;
log.parent.children.push(child);
log.children[i] = undefined;
}
}
var ind=log.parent.children.indexOf(log);
log.parent.children[ind]=undefined
}
blocks.splice(blocks.indexOf(log),1);
log.deleteBlock();
log = undefined
}
/*evaluates a logical object (block)*/
function processLogicalObject(log) {
if (!log) return;
if (log.visited) return;
var dep = false;
var i,j;
for (i=0;i<log.children.length;i++) {
if (log.children[i]) {
if (log.children[i].relativeArea()>=ac) {
processLogicStructure(log.children[i])
} else {
if (log.children[i].visualCuesPresent) {
log.children[i].clearChildrenBlocks();
} else {
var touch = 0;
var stop=false;
if (i<log.children.length-1)
j=i+1
else
j=i
while (!stop) {
if (log.children[j]) {
if (log.children[j] && log.children[j].relativeArea()<ac) {
if (log.children[j] && (i!=j) && (distance(log.children[i],log.children[j]).value<dc) && (included(getAligment(log.children[i],log.children[j]),["V","H"])) ) {
log.children[i].mergeWith(log.children[j]);
touch++;
}
}
}
j++;
stop = (j>=log.children.length);
}
}
if (touch==0) {
log.children[i].clearChildrenBlocks();
}
}
}
}
log.updateBlock();
}
/* evaluate the logic structure to conform final blocks */
function processLogicStructure(log,level,pid,parent) {
if (!log) return;
if (log.visited) return;
if (log.type=="PAGE") {
processLogicalObject(log);
} else if (log.type=="CONTAINER"){
if (log.children.length==1) {
child = log.children[0];
removeLogicObject(log);
processLogicStructure(child,level+1,pid,log);
} else {
processLogicalObject(log);
}
} else if (log.type=="CONTENT_CONTAINER") {
if (log.children.length==1) {
child = log.children[0];
removeLogicObject(log);
processLogicStructure(child,level+1,pid,log);
} else {
processLogicalObject(log);
}
} else if (log.type=="CONTENT") {
if (log.children.length==1) {
child = log.children[0];
removeLogicObject(log);
processLogicStructure(child,level+1,pid,log);
} else {
processLogicalObject(log);
}
} else if (log.type=="DEFAULT") {
processLogicalObject(log);
} else {
console.log("WARNING!!!! Element SKIPPED")
}
log.visited = true;
}
/* included obj in arr?*/
function included(obj,arr) {
for (var i=0;i<arr.length;i++) {
if (arr[i]==obj) {
return(true);
}
}
return(false);
}
/* ==============================================================*/
/* LOGIC OBJECT */
/* ==============================================================*/
function logicalObject(obj) {
this.block = undefined;
this.id = "L"+blocks.length;
this.dim = undefined;
this.parent;
this.visited = false;
this.children = [];
this.type = "";
this.geometricObjects = [];
this.label = "STANDARD";
this.visualCuesPresent = false;
this.setLabel = function() {
if (this.dim.x < dx) {
this.label = "LEFT";
} else {
if ((documentDim().w - this.dim.w) < dx) {
this.label = "RIGHT";
} else {
if (this.dim.y < dy) {
this.label = "TOP";
} else {
if ((documentDim().h - this.dim.h) < dy) {
this.label = "BOTTOM";
} else {
this.label = "STANDARD";
}
}
}
}
}
this.nextSibling = function() {
if (this.parent) {
ind = this.parent.children.indexOf(this);
if (ind<this.parent.children.length) {
return(this.parent.children[ind+1]);
} else {
return(null);
}
} else {
return(null);
}
}
this.previousSibling = function() {
if (this.parent) {