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tablefilter.js
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tablefilter.js
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/*====================================================
- HTML Table Filter Generator v1.6
- By Max Guglielmi
- mguglielmi.free.fr/scripts/TableFilter/?l=en
- please do not change this comment
- don't forget to give some credit... it's always
good for the author
- Special credit to Cedric Wartel and
cnx.claude@free.fr for contribution and
inspiration
=====================================================*/
// global vars
var TblId, SearchFlt, SlcArgs;
TblId = new Array(), SlcArgs = new Array();
function setFilterGrid(id)
/*====================================================
- Checks if id exists and is a table
- Then looks for additional params
- Calls fn that generates the grid
=====================================================*/
{
var tbl = grabEBI(id);
var ref_row, fObj;
if(tbl != null && tbl.nodeName.toLowerCase() == "table")
{
if(arguments.length>1)
{
for(var i=0; i<arguments.length; i++)
{
var argtype = typeof arguments[i];
switch(argtype.toLowerCase())
{
case "number":
ref_row = arguments[i];
break;
case "object":
fObj = arguments[i];
break;
}//switch
}//for
}//if
ref_row == undefined ? ref_row=2 : ref_row=(ref_row+2);
var ncells = getCellsNb(id,ref_row);
tbl.tf_ncells = ncells;
if(tbl.tf_ref_row==undefined) tbl.tf_ref_row = ref_row;
tbl.tf_Obj = fObj;
if( !hasGrid(id) ) AddGrid(id);
}//if tbl!=null
}
function AddGrid(id)
/*====================================================
- adds a row containing the filtering grid
=====================================================*/
{
TblId.push(id);
var t = grabEBI(id);
var f = t.tf_Obj, n = t.tf_ncells;
var inpclass, fltgrid, displayBtn, btntext, enterkey;
var modfilter_fn, display_allText, on_slcChange;
var displaynrows, totrows_text, btnreset, btnreset_text;
var sort_slc, displayPaging, pagingLength, displayLoader;
var load_text, exactMatch, alternateBgs, colOperation;
var rowVisibility, colWidth, bindScript;
f!=undefined && f["grid"]==false ? fltgrid=false : fltgrid=true;//enables/disables filter grid
f!=undefined && f["btn"]==true ? displayBtn=true : displayBtn=false;//show/hides filter's validation button
f!=undefined && f["btn_text"]!=undefined ? btntext=f["btn_text"] : btntext="go";//defines button text
f!=undefined && f["enter_key"]==false ? enterkey=false : enterkey=true;//enables/disables enter key
f!=undefined && f["mod_filter_fn"] ? modfilter_fn=true : modfilter_fn=false;//defines alternative fn
f!=undefined && f["display_all_text"]!=undefined ? display_allText=f["display_all_text"] : display_allText="";//defines 1st option text
f!=undefined && f["on_change"]==false ? on_slcChange=false : on_slcChange=true;//enables/disables onChange event on combo-box
f!=undefined && f["rows_counter"]==true ? displaynrows=true : displaynrows=false;//show/hides rows counter
f!=undefined && f["rows_counter_text"]!=undefined ? totrows_text=f["rows_counter_text"] : totrows_text="Displayed rows: ";//defines rows counter text
f!=undefined && f["btn_reset"]==true ? btnreset=true : btnreset=false;//show/hides reset link
f!=undefined && f["btn_reset_text"]!=undefined ? btnreset_text=f["btn_reset_text"] : btnreset_text="Reset";//defines reset text
f!=undefined && f["sort_select"]==true ? sort_slc=true : sort_slc=false;//enables/disables select options sorting
f!=undefined && f["paging"]==true ? displayPaging=true : displayPaging=false;//enables/disables table paging
f!=undefined && f["paging_length"]!=undefined ? pagingLength=f["paging_length"] : pagingLength=10;//defines table paging length
f!=undefined && f["loader"]==true ? displayLoader=true : displayLoader=false;//enables/disables loader
f!=undefined && f["loader_text"]!=undefined ? load_text=f["loader_text"] : load_text="Loading...";//defines loader text
f!=undefined && f["exact_match"]==true ? exactMatch=true : exactMatch=false;//enables/disbles exact match for search
f!=undefined && f["alternate_rows"]==true ? alternateBgs=true : alternateBgs=false;//enables/disbles rows alternating bg colors
f!=undefined && f["col_operation"] ? colOperation=true : colOperation=false;//enables/disbles column operation(sum,mean)
f!=undefined && f["rows_always_visible"] ? rowVisibility=true : rowVisibility=false;//makes a row always visible
f!=undefined && f["col_width"] ? colWidth=true : colWidth=false;//defines widths of columns
f!=undefined && f["bind_script"] ? bindScript=true : bindScript=false;
// props are added to table in order to be easily accessible from other fns
t.tf_fltGrid = fltgrid;
t.tf_displayBtn = displayBtn;
t.tf_btnText = btntext;
t.tf_enterKey = enterkey;
t.tf_isModfilter_fn = modfilter_fn;
t.tf_display_allText = display_allText;
t.tf_on_slcChange = on_slcChange;
t.tf_rowsCounter = displaynrows;
t.tf_rowsCounter_text = totrows_text;
t.tf_btnReset = btnreset;
t.tf_btnReset_text = btnreset_text;
t.tf_sortSlc = sort_slc;
t.tf_displayPaging = displayPaging;
t.tf_pagingLength = pagingLength;
t.tf_displayLoader = displayLoader;
t.tf_loadText = load_text;
t.tf_exactMatch = exactMatch;
t.tf_alternateBgs = alternateBgs;
t.tf_startPagingRow = 0;
if(modfilter_fn) t.tf_modfilter_fn = f["mod_filter_fn"];// used by DetectKey fn
if(fltgrid)
{
var fltrow = t.insertRow(0); //adds filter row
fltrow.className = "fltrow";
for(var i=0; i<n; i++)// this loop adds filters
{
var fltcell = fltrow.insertCell(i);
//fltcell.noWrap = true;
i==n-1 && displayBtn==true ? inpclass = "flt_s" : inpclass = "flt";
if(f==undefined || f["col_"+i]==undefined || f["col_"+i]=="none")
{
var inptype;
(f==undefined || f["col_"+i]==undefined) ? inptype="text" : inptype="hidden";//show/hide input
var inp = createElm( "input",["id","flt"+i+"_"+id],["type",inptype],["class",inpclass] );
inp.className = inpclass;// for ie<=6
fltcell.appendChild(inp);
if(enterkey) inp.onkeypress = DetectKey;
}
else if(f["col_"+i]=="select")
{
var slc = createElm( "select",["id","flt"+i+"_"+id],["class",inpclass] );
slc.className = inpclass;// for ie<=6
fltcell.appendChild(slc);
PopulateOptions(id,i);
if(displayPaging)//stores arguments for GroupByPage() fn
{
var args = new Array();
args.push(id); args.push(i); args.push(n);
args.push(display_allText); args.push(sort_slc); args.push(displayPaging);
SlcArgs.push(args);
}
if(enterkey) slc.onkeypress = DetectKey;
if(on_slcChange)
{
(!modfilter_fn) ? slc.onchange = function(){ Filter(id); } : slc.onchange = f["mod_filter_fn"];
}
}
if(i==n-1 && displayBtn==true)// this adds button
{
var btn = createElm(
"input",
["id","btn"+i+"_"+id],["type","button"],
["value",btntext],["class","btnflt"]
);
btn.className = "btnflt";
fltcell.appendChild(btn);
(!modfilter_fn) ? btn.onclick = function(){ Filter(id); } : btn.onclick = f["mod_filter_fn"];
}//if
}// for i
}//if fltgrid
if(displaynrows || btnreset || displayPaging || displayLoader)
{
/*** div containing rows # displayer + reset btn ***/
var infdiv = createElm( "div",["id","inf_"+id],["class","inf"] );
infdiv.className = "inf";// setAttribute method for class attribute doesn't seem to work on ie<=6
t.parentNode.insertBefore(infdiv, t);
if(displaynrows)
{
/*** left div containing rows # displayer ***/
var totrows;
var ldiv = createElm( "div",["id","ldiv_"+id] );
displaynrows ? ldiv.className = "ldiv" : ldiv.style.display = "none";
displayPaging ? totrows = pagingLength : totrows = getRowsNb(id);
var totrows_span = createElm( "span",["id","totrows_span_"+id],["class","tot"] ); // tot # of rows displayer
totrows_span.className = "tot";//for ie<=6
totrows_span.appendChild( createText(totrows) );
var totrows_txt = createText(totrows_text);
ldiv.appendChild(totrows_txt);
ldiv.appendChild(totrows_span);
infdiv.appendChild(ldiv);
}
if(displayLoader)
{
/*** div containing loader ***/
var loaddiv = createElm( "div",["id","load_"+id],["class","loader"] );
loaddiv.className = "loader";// for ie<=6
loaddiv.style.display = "none";
loaddiv.appendChild( createText(load_text) );
infdiv.appendChild(loaddiv);
}
if(displayPaging)
{
/*** mid div containing paging displayer ***/
var mdiv = createElm( "div",["id","mdiv_"+id] );
displayPaging ? mdiv.className = "mdiv" : mdiv.style.display = "none";
infdiv.appendChild(mdiv);
var start_row = t.tf_ref_row;
var row = grabTag(t,"tr");
var nrows = row.length;
var npages = Math.ceil( (nrows - start_row)/pagingLength );//calculates page nb
var slcPages = createElm( "select",["id","slcPages_"+id] );
slcPages.onchange = function(){
if(displayLoader) showLoader(id,"");
t.tf_startPagingRow = this.value;
GroupByPage(id);
if(displayLoader) showLoader(id,"none");
}
var pgspan = createElm( "span",["id","pgspan_"+id] );
grabEBI("mdiv_"+id).appendChild( createText(" Page ") );
grabEBI("mdiv_"+id).appendChild(slcPages);
grabEBI("mdiv_"+id).appendChild( createText(" of ") );
pgspan.appendChild( createText(npages+" ") );
grabEBI("mdiv_"+id).appendChild(pgspan);
for(var j=start_row; j<nrows; j++)//this sets rows to validRow=true
{
row[j].setAttribute("validRow","true");
}//for j
setPagingInfo(id);
if(displayLoader) showLoader(id,"none");
}
if(btnreset && fltgrid)
{
/*** right div containing reset button **/
var rdiv = createElm( "div",["id","reset_"+id] );
btnreset ? rdiv.className = "rdiv" : rdiv.style.display = "none";
var fltreset = createElm( "a",
["href","javascript:clearFilters('"+id+"');Filter('"+id+"');"] );
fltreset.appendChild(createText(btnreset_text));
rdiv.appendChild(fltreset);
infdiv.appendChild(rdiv);
}
}//if displaynrows etc.
if(colWidth)
{
t.tf_colWidth = f["col_width"];
setColWidths(id);
}
if(alternateBgs && !displayPaging)
setAlternateRows(id);
if(colOperation)
{
t.tf_colOperation = f["col_operation"];
setColOperation(id);
}
if(rowVisibility)
{
t.tf_rowVisibility = f["rows_always_visible"];
if(displayPaging) setVisibleRows(id);
}
if(bindScript)
{
t.tf_bindScript = f["bind_script"];
if( t.tf_bindScript!=undefined &&
t.tf_bindScript["target_fn"]!=undefined )
{//calls a fn if defined
t.tf_bindScript["target_fn"].call(null,id);
}
}//if bindScript
}
function PopulateOptions(id,cellIndex)
/*====================================================
- populates select
- adds only 1 occurence of a value
=====================================================*/
{
var t = grabEBI(id);
var ncells = t.tf_ncells, opt0txt = t.tf_display_allText;
var sort_opts = t.tf_sortSlc, paging = t.tf_displayPaging;
var start_row = t.tf_ref_row;
var row = grabTag(t,"tr");
var OptArray = new Array();
var optIndex = 0; // option index
var currOpt = new Option(opt0txt,"",false,false); //1st option
grabEBI("flt"+cellIndex+"_"+id).options[optIndex] = currOpt;
for(var k=start_row; k<row.length; k++)
{
var cell = getChildElms(row[k]).childNodes;
var nchilds = cell.length;
var isPaged = row[k].getAttribute("paging");
if(nchilds == ncells){// checks if row has exact cell #
for(var j=0; j<nchilds; j++)// this loop retrieves cell data
{
if(cellIndex==j)
{
var cell_data = getCellText(cell[j]);
// checks if celldata is already in array
var isMatched = false;
for(w in OptArray)
{
if( cell_data == OptArray[w] ) isMatched = true;
}
if(!isMatched) OptArray.push(cell_data);
}//if cellIndex==j
}//for j
}//if
}//for k
if(sort_opts) OptArray.sort();
for(y in OptArray)
{
optIndex++;
var currOpt = new Option(OptArray[y],OptArray[y],false,false);
grabEBI("flt"+cellIndex+"_"+id).options[optIndex] = currOpt;
}
}
function Filter(id)
/*====================================================
- Filtering fn
- gets search strings from SearchFlt array
- retrieves data from each td in every single tr
and compares to search string for current
column
- tr is hidden if all search strings are not
found
=====================================================*/
{
showLoader(id,"");
SearchFlt = getFilters(id);
var t = grabEBI(id);
t.tf_Obj!=undefined ? fprops = t.tf_Obj : fprops = new Array();
var SearchArgs = new Array();
var ncells = getCellsNb(id);
var totrows = getRowsNb(id), hiddenrows = 0;
var ematch = t.tf_exactMatch;
var showPaging = t.tf_displayPaging;
for(var i=0; i<SearchFlt.length; i++)
SearchArgs.push( (grabEBI(SearchFlt[i]).value).toLowerCase() );
var start_row = t.tf_ref_row;
var row = grabTag(t,"tr");
for(var k=start_row; k<row.length; k++)
{
/*** if table already filtered some rows are not visible ***/
if(row[k].style.display == "none") row[k].style.display = "";
var cell = getChildElms(row[k]).childNodes;
var nchilds = cell.length;
if(nchilds == ncells)// checks if row has exact cell #
{
var cell_value = new Array();
var occurence = new Array();
var isRowValid = true;
for(var j=0; j<nchilds; j++)// this loop retrieves cell data
{
var cell_data = getCellText(cell[j]).toLowerCase();
cell_value.push(cell_data);
if(SearchArgs[j]!="")
{
var num_cell_data = parseFloat(cell_data);
if(/<=/.test(SearchArgs[j]) && !isNaN(num_cell_data)) // first checks if there is an operator (<,>,<=,>=)
{
num_cell_data <= parseFloat(SearchArgs[j].replace(/<=/,"")) ? occurence[j] = true : occurence[j] = false;
}
else if(/>=/.test(SearchArgs[j]) && !isNaN(num_cell_data))
{
num_cell_data >= parseFloat(SearchArgs[j].replace(/>=/,"")) ? occurence[j] = true : occurence[j] = false;
}
else if(/</.test(SearchArgs[j]) && !isNaN(num_cell_data))
{
num_cell_data < parseFloat(SearchArgs[j].replace(/</,"")) ? occurence[j] = true : occurence[j] = false;
}
else if(/>/.test(SearchArgs[j]) && !isNaN(num_cell_data))
{
num_cell_data > parseFloat(SearchArgs[j].replace(/>/,"")) ? occurence[j] = true : occurence[j] = false;
}
else
{
// Improved by Cedric Wartel (cwl)
// automatic exact match for selects and special characters are now filtered
// modif cwl : exact match automatique sur les select
var regexp;
if(ematch || fprops["col_"+j]=="select") regexp = new RegExp('(^)'+regexpEscape(SearchArgs[j])+'($)',"gi");
else regexp = new RegExp(regexpEscape(SearchArgs[j]),"gi");
occurence[j] = regexp.test(cell_data);
}
}//if SearchArgs
}//for j
for(var z=0; z<ncells; z++)
{
if(SearchArgs[z]!="" && !occurence[z]) isRowValid = false;
}//for t
}//if
if(!isRowValid)
{
row[k].style.display = "none"; hiddenrows++;
if( showPaging ) row[k].setAttribute("validRow","false");
} else {
row[k].style.display = "";
if( showPaging ) row[k].setAttribute("validRow","true");
}
}// for k
t.tf_nRows = parseInt( getRowsNb(id) )-hiddenrows;
if( !showPaging ) applyFilterProps(id);//applies filter props after filtering process
if( showPaging ){ t.tf_startPagingRow=0; setPagingInfo(id); }//starts paging process
}
function setPagingInfo(id)
/*====================================================
- Paging fn
- calculates page # according to valid rows
- refreshes paging select according to page #
- Calls GroupByPage fn
=====================================================*/
{
var t = grabEBI(id);
var start_row = parseInt( t.tf_ref_row );//filter start row
var pagelength = t.tf_pagingLength;
var row = grabTag(t,"tr");
var mdiv = grabEBI("mdiv_"+id);
var slcPages = grabEBI("slcPages_"+id);
var pgspan = grabEBI("pgspan_"+id);
var nrows = 0;
for(var j=start_row; j<row.length; j++)//counts rows to be grouped
{
if(row[j].getAttribute("validRow") == "true") nrows++;
}//for j
var npg = Math.ceil( nrows/pagelength );//calculates page nb
pgspan.innerHTML = npg; //refresh page nb span
slcPages.innerHTML = "";//select clearing shortcut
if( npg>0 )
{
mdiv.style.visibility = "visible";
for(var z=0; z<npg; z++)
{
var currOpt = new Option((z+1),z*pagelength,false,false);
slcPages.options[z] = currOpt;
}
} else {/*** if no results paging select is hidden ***/
mdiv.style.visibility = "hidden";
}
GroupByPage(id);
}
function GroupByPage(id)
/*====================================================
- Paging fn
- Displays current page rows
=====================================================*/
{
showLoader(id,"");
var t = grabEBI(id);
var start_row = parseInt( t.tf_ref_row );//filter start row
var pagelength = parseInt( t.tf_pagingLength );
var paging_start_row = parseInt( t.tf_startPagingRow );//paging start row
var paging_end_row = paging_start_row + pagelength;
var row = grabTag(t,"tr");
var nrows = 0;
var validRows = new Array();//stores valid rows index
for(var j=start_row; j<row.length; j++)
//this loop stores valid rows index in validRows Array
{
var isRowValid = row[j].getAttribute("validRow");
if(isRowValid=="true") validRows.push(j);
}//for j
for(h=0; h<validRows.length; h++)
//this loop shows valid rows of current page
{
if( h>=paging_start_row && h<paging_end_row )
{
nrows++;
row[ validRows[h] ].style.display = "";
} else row[ validRows[h] ].style.display = "none";
}//for h
t.tf_nRows = parseInt(nrows);
applyFilterProps(id);//applies filter props after filtering process
}
function applyFilterProps(id)
/*====================================================
- checks fns that should be called
after filtering and/or paging process
=====================================================*/
{
t = grabEBI(id);
var rowsCounter = t.tf_rowsCounter;
var nRows = t.tf_nRows;
var rowVisibility = t.tf_rowVisibility;
var alternateRows = t.tf_alternateBgs;
var colOperation = t.tf_colOperation;
if( rowsCounter ) showRowsCounter( id,parseInt(nRows) );//refreshes rows counter
if( rowVisibility ) setVisibleRows(id);//shows rows always visible
if( alternateRows ) setAlternateRows(id);//alterning row colors
if( colOperation ) setColOperation(id);//makes operation on a col
showLoader(id,"none");
}
function hasGrid(id)
/*====================================================
- checks if table has a filter grid
- returns a boolean
=====================================================*/
{
var r = false, t = grabEBI(id);
if(t != null && t.nodeName.toLowerCase() == "table")
{
for(i in TblId)
{
if(id == TblId[i]) r = true;
}// for i
}//if
return r;
}
function getCellsNb(id,nrow)
/*====================================================
- returns number of cells in a row
- if nrow param is passed returns number of cells
of that specific row
=====================================================*/
{
var t = grabEBI(id);
var tr;
if(nrow == undefined) tr = grabTag(t,"tr")[0];
else tr = grabTag(t,"tr")[nrow];
var n = getChildElms(tr);
return n.childNodes.length;
}
function getRowsNb(id)
/*====================================================
- returns total nb of filterable rows starting
from reference row if defined
=====================================================*/
{
var t = grabEBI(id);
var s = t.tf_ref_row;
var ntrs = grabTag(t,"tr").length;
return parseInt(ntrs-s);
}
function getFilters(id)
/*====================================================
- returns an array containing filters ids
- Note that hidden filters are also returned
=====================================================*/
{
var SearchFltId = new Array();
var t = grabEBI(id);
var tr = grabTag(t,"tr")[0];
var enfants = tr.childNodes;
if(t.tf_fltGrid)
{
for(var i=0; i<enfants.length; i++)
SearchFltId.push(enfants[i].firstChild.getAttribute("id"));
}
return SearchFltId;
}
function clearFilters(id)
/*====================================================
- clears grid filters
=====================================================*/
{
SearchFlt = getFilters(id);
for(i in SearchFlt) grabEBI(SearchFlt[i]).value = "";
}
function showLoader(id,p)
/*====================================================
- displays/hides loader div
=====================================================*/
{
var loader = grabEBI("load_"+id);
if(loader != null && p=="none")
setTimeout("grabEBI('load_"+id+"').style.display = '"+p+"'",150);
else if(loader != null && p!="none") loader.style.display = p;
}
function showRowsCounter(id,p)
/*====================================================
- Shows total number of filtered rows
=====================================================*/
{
var totrows = grabEBI("totrows_span_"+id);
if(totrows != null && totrows.nodeName.toLowerCase() == "span" )
totrows.innerHTML = p;
}
function getChildElms(n)
/*====================================================
- checks passed node is a ELEMENT_NODE nodeType=1
- removes TEXT_NODE nodeType=3
=====================================================*/
{
if(n.nodeType == 1)
{
var enfants = n.childNodes;
for(var i=0; i<enfants.length; i++)
{
var child = enfants[i];
if(child.nodeType == 3) n.removeChild(child);
}
return n;
}
}
function getCellText(n)
/*====================================================
- returns text + text of child nodes of a cell
=====================================================*/
{
var s = "";
var enfants = n.childNodes;
for(var i=0; i<enfants.length; i++)
{
var child = enfants[i];
if(child.nodeType == 3) s+= child.data;
else s+= getCellText(child);
}
return s;
}
function getColValues(id,colindex,num)
/*====================================================
- returns an array containing cell values of
a column
- needs following args:
- filter id (string)
- column index (number)
- a boolean set to true if we want only
numbers to be returned
=====================================================*/
{
var t = grabEBI(id);
var row = grabTag(t,"tr");
var nrows = row.length;
var start_row = parseInt( t.tf_ref_row );//filter start row
var ncells = getCellsNb( id,start_row );
var colValues = new Array();
for(var i=start_row; i<nrows; i++)//iterates rows
{
var cell = getChildElms(row[i]).childNodes;
var nchilds = cell.length;
if(nchilds == ncells)// checks if row has exact cell #
{
for(var j=0; j<nchilds; j++)// this loop retrieves cell data
{
if(j==colindex && row[i].style.display=="" )
{
var cell_data = getCellText( cell[j] ).toLowerCase();
(num) ? colValues.push( parseFloat(cell_data) ) : colValues.push( cell_data );
}//if j==k
}//for j
}//if nchilds == ncells
}//for i
return colValues;
}
function setColWidths(id)
/*====================================================
- sets widths of columns
=====================================================*/
{
if( hasGrid(id) )
{
var t = grabEBI(id);
t.style.tableLayout = "fixed";
var colWidth = t.tf_colWidth;
var start_row = parseInt( t.tf_ref_row );//filter start row
var row = grabTag(t,"tr")[0];
var ncells = getCellsNb(id,start_row);
for(var i=0; i<colWidth.length; i++)
{
for(var k=0; k<ncells; k++)
{
cell = row.childNodes[k];
if(k==i) cell.style.width = colWidth[i];
}//var k
}//for i
}//if hasGrid
}
function setVisibleRows(id)
/*====================================================
- makes a row always visible
=====================================================*/
{
if( hasGrid(id) )
{
var t = grabEBI(id);
var row = grabTag(t,"tr");
var nrows = row.length;
var showPaging = t.tf_displayPaging;
var visibleRows = t.tf_rowVisibility;
for(var i=0; i<visibleRows.length; i++)
{
if(visibleRows[i]<=nrows)//row index cannot be > nrows
{
if(showPaging)
row[ visibleRows[i] ].setAttribute("validRow","true");
row[ visibleRows[i] ].style.display = "";
}//if
}//for i
}//if hasGrid
}
function setAlternateRows(id)
/*====================================================
- alternates row colors for better readability
=====================================================*/
{
if( hasGrid(id) )
{
var t = grabEBI(id);
var row = grabTag(t,"tr");
var nrows = row.length;
var start_row = parseInt( t.tf_ref_row );//filter start row
var visiblerows = new Array();
for(var i=start_row; i<nrows; i++)//visible rows are stored in visiblerows array
if( row[i].style.display=="" ) visiblerows.push(i);
for(var j=0; j<visiblerows.length; j++)//alternates bg color
(j % 2 == 0) ? row[ visiblerows[j] ].className = "even" : row[ visiblerows[j] ].className = "odd";
}//if hasGrid
}
function setColOperation(id)
/*====================================================
- Calculates values of a column
- params are stored in 'colOperation' table's
attribute
- colOperation["id"] contains ids of elements
showing result (array)
- colOperation["col"] contains index of
columns (array)
- colOperation["operation"] contains operation
type (array, values: sum, mean)
- colOperation["write_method"] array defines
which method to use for displaying the
result (innerHTML, setValue, createTextNode).
Note that innerHTML is the default value.
!!! to be optimised
=====================================================*/
{
if( hasGrid(id) )
{
var t = grabEBI(id);
var labelId = t.tf_colOperation["id"];
var colIndex = t.tf_colOperation["col"];
var operation = t.tf_colOperation["operation"];
var outputType = t.tf_colOperation["write_method"];
var precision = 2;//decimal precision
if( (typeof labelId).toLowerCase()=="object"
&& (typeof colIndex).toLowerCase()=="object"
&& (typeof operation).toLowerCase()=="object" )
{
var row = grabTag(t,"tr");
var nrows = row.length;
var start_row = parseInt( t.tf_ref_row );//filter start row
var ncells = getCellsNb( id,start_row );
var colvalues = new Array();
for(var k=0; k<colIndex.length; k++)//this retrieves col values
{
colvalues.push( getColValues(id,colIndex[k],true) );
}//for k
for(var i=0; i<colvalues.length; i++)
{
var result=0, nbvalues=0;
for(var j=0; j<colvalues[i].length; j++ )
{
var cvalue = colvalues[i][j];
if( !isNaN(cvalue) )
{
switch( operation[i].toLowerCase() )
{
case "sum":
result += parseFloat( cvalue );
break;
case "mean":
nbvalues++;
result += parseFloat( cvalue );
break;
//add cases for other operations
}//switch
}
}//for j
switch( operation[i].toLowerCase() )
{
case "mean":
result = result/nbvalues;
break;
}
if(outputType != undefined && (typeof outputType).toLowerCase()=="object")
//if outputType is defined
{
result = result.toFixed( precision );
if( grabEBI( labelId[i] )!=undefined )
{
switch( outputType[i].toLowerCase() )
{
case "innerhtml":
grabEBI( labelId[i] ).innerHTML = result;
break;
case "setvalue":
grabEBI( labelId[i] ).value = result;
break;
case "createtextnode":
var oldnode = grabEBI( labelId[i] ).firstChild;
var txtnode = createText( result );
grabEBI( labelId[i] ).replaceChild( txtnode,oldnode );
break;
//other cases could be added
}//switch
}
} else {
try
{
grabEBI( labelId[i] ).innerHTML = result.toFixed( precision );
} catch(e){ }//catch
}//else
}//for i
}//if typeof
}//if hasGrid
}
function grabEBI(id)
/*====================================================
- this is just a getElementById shortcut
=====================================================*/
{
return document.getElementById( id );
}
function grabTag(obj,tagname)
/*====================================================
- this is just a getElementsByTagName shortcut
=====================================================*/
{
return obj.getElementsByTagName( tagname );
}
function regexpEscape(s)
/*====================================================
- escapes special characters [\^$.|?*+()
for regexp
- Many thanks to Cedric Wartel for this fn
=====================================================*/
{
// traite les caractères spéciaux [\^$.|?*+()
//remplace le carctère c par \c
function escape(e)
{
a = new RegExp('\\'+e,'g');
s = s.replace(a,'\\'+e);
}
chars = new Array('\\','[','^','$','.','|','?','*','+','(',')');
//chars.each(escape); // no prototype framework here...
for(e in chars) escape(chars[e]);
return s;
}
function createElm(elm)
/*====================================================
- returns an html element with its attributes
- accepts the following params:
- a string defining the html element
to create
- an undetermined # of arrays containing the
couple "attribute name","value" ["id","myId"]
=====================================================*/
{
var el = document.createElement( elm );
if(arguments.length>1)
{
for(var i=0; i<arguments.length; i++)
{
var argtype = typeof arguments[i];
switch( argtype.toLowerCase() )
{
case "object":
if( arguments[i].length==2 )
{
el.setAttribute( arguments[i][0],arguments[i][1] );
}//if array length==2
break;
}//switch
}//for i
}//if args
return el;
}
function createText(node)
/*====================================================
- this is just a document.createTextNode shortcut
=====================================================*/
{
return document.createTextNode( node );
}
function DetectKey(e)
/*====================================================
- common fn that detects return key for a given
element (onkeypress attribute on input)
=====================================================*/
{
var evt=(e)?e:(window.event)?window.event:null;
if(evt)
{
var key=(evt.charCode)?evt.charCode:
((evt.keyCode)?evt.keyCode:((evt.which)?evt.which:0));
if(key=="13")
{
var cid, leftstr, tblid, CallFn, Match;
cid = this.getAttribute("id");
leftstr = this.getAttribute("id").split("_")[0];
tblid = cid.substring(leftstr.length+1,cid.length);
t = grabEBI(tblid);
(t.tf_isModfilter_fn) ? t.tf_modfilter_fn.call() : Filter(tblid);
}//if key
}//if evt
}
function importScript(scriptName,scriptPath)
{
var isImported = false;
var scripts = grabTag(document,"script");
for (var i=0; i<scripts.length; i++)
{
if(scripts[i].src.match(scriptPath))
{
isImported = true;
break;
}
}
if( !isImported )//imports script if not available
{