/
core.constructor.js
437 lines (375 loc) · 12.5 KB
/
core.constructor.js
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/*global oInit,_that,emptyInit*/
var i=0, iLen, j, jLen, k, kLen;
var sId = this.getAttribute( 'id' );
var bInitHandedOff = false;
var defaults = DataTable.defaults;
var $this = $(this);
/* Sanity check */
if ( this.nodeName.toLowerCase() != 'table' )
{
_fnLog( null, 0, 'Non-table node initialisation ('+this.nodeName+')', 2 );
return;
}
/* Backwards compatibility for the defaults */
_fnCompatOpts( defaults );
_fnCompatCols( defaults.column );
/* Convert the camel-case defaults to Hungarian */
_fnCamelToHungarian( defaults, defaults, true );
_fnCamelToHungarian( defaults.column, defaults.column, true );
/* Setting up the initialisation object */
_fnCamelToHungarian( defaults, $.extend( oInit, $this.data() ), true );
/* Check to see if we are re-initialising a table */
var allSettings = DataTable.settings;
for ( i=0, iLen=allSettings.length ; i<iLen ; i++ )
{
var s = allSettings[i];
/* Base check on table node */
if (
s.nTable == this ||
(s.nTHead && s.nTHead.parentNode == this) ||
(s.nTFoot && s.nTFoot.parentNode == this)
) {
var bRetrieve = oInit.bRetrieve !== undefined ? oInit.bRetrieve : defaults.bRetrieve;
var bDestroy = oInit.bDestroy !== undefined ? oInit.bDestroy : defaults.bDestroy;
if ( emptyInit || bRetrieve )
{
return s.oInstance;
}
else if ( bDestroy )
{
s.oInstance.fnDestroy();
break;
}
else
{
_fnLog( s, 0, 'Cannot reinitialise DataTable', 3 );
return;
}
}
/* If the element we are initialising has the same ID as a table which was previously
* initialised, but the table nodes don't match (from before) then we destroy the old
* instance by simply deleting it. This is under the assumption that the table has been
* destroyed by other methods. Anyone using non-id selectors will need to do this manually
*/
if ( s.sTableId == this.id )
{
allSettings.splice( i, 1 );
break;
}
}
/* Ensure the table has an ID - required for accessibility */
if ( sId === null || sId === "" )
{
sId = "DataTables_Table_"+(DataTable.ext._unique++);
this.id = sId;
}
/* Create the settings object for this table and set some of the default parameters */
var oSettings = $.extend( true, {}, DataTable.models.oSettings, {
"sDestroyWidth": $this[0].style.width,
"sInstance": sId,
"sTableId": sId
} );
oSettings.nTable = this;
oSettings.oApi = _that.internal;
oSettings.oInit = oInit;
allSettings.push( oSettings );
// Need to add the instance after the instance after the settings object has been added
// to the settings array, so we can self reference the table instance if more than one
oSettings.oInstance = (_that.length===1) ? _that : $this.dataTable();
// Backwards compatibility, before we apply all the defaults
_fnCompatOpts( oInit );
_fnLanguageCompat( oInit.oLanguage );
// If the length menu is given, but the init display length is not, use the length menu
if ( oInit.aLengthMenu && ! oInit.iDisplayLength )
{
oInit.iDisplayLength = Array.isArray( oInit.aLengthMenu[0] ) ?
oInit.aLengthMenu[0][0] : oInit.aLengthMenu[0];
}
// Apply the defaults and init options to make a single init object will all
// options defined from defaults and instance options.
oInit = _fnExtend( $.extend( true, {}, defaults ), oInit );
// Map the initialisation options onto the settings object
_fnMap( oSettings.oFeatures, oInit, [
"bPaginate",
"bLengthChange",
"bFilter",
"bSort",
"bSortMulti",
"bInfo",
"bProcessing",
"bAutoWidth",
"bSortClasses",
"bServerSide",
"bDeferRender"
] );
_fnMap( oSettings, oInit, [
"asStripeClasses",
"ajax",
"fnServerData",
"fnFormatNumber",
"sServerMethod",
"aaSorting",
"aaSortingFixed",
"aLengthMenu",
"sPaginationType",
"sAjaxSource",
"sAjaxDataProp",
"iStateDuration",
"sDom",
"bSortCellsTop",
"iTabIndex",
"fnStateLoadCallback",
"fnStateSaveCallback",
"renderer",
"searchDelay",
"rowId",
[ "iCookieDuration", "iStateDuration" ], // backwards compat
[ "oSearch", "oPreviousSearch" ],
[ "aoSearchCols", "aoPreSearchCols" ],
[ "iDisplayLength", "_iDisplayLength" ]
] );
_fnMap( oSettings.oScroll, oInit, [
[ "sScrollX", "sX" ],
[ "sScrollXInner", "sXInner" ],
[ "sScrollY", "sY" ],
[ "bScrollCollapse", "bCollapse" ]
] );
_fnMap( oSettings.oLanguage, oInit, "fnInfoCallback" );
/* Callback functions which are array driven */
_fnCallbackReg( oSettings, 'aoDrawCallback', oInit.fnDrawCallback, 'user' );
_fnCallbackReg( oSettings, 'aoServerParams', oInit.fnServerParams, 'user' );
_fnCallbackReg( oSettings, 'aoStateSaveParams', oInit.fnStateSaveParams, 'user' );
_fnCallbackReg( oSettings, 'aoStateLoadParams', oInit.fnStateLoadParams, 'user' );
_fnCallbackReg( oSettings, 'aoStateLoaded', oInit.fnStateLoaded, 'user' );
_fnCallbackReg( oSettings, 'aoRowCallback', oInit.fnRowCallback, 'user' );
_fnCallbackReg( oSettings, 'aoRowCreatedCallback', oInit.fnCreatedRow, 'user' );
_fnCallbackReg( oSettings, 'aoHeaderCallback', oInit.fnHeaderCallback, 'user' );
_fnCallbackReg( oSettings, 'aoFooterCallback', oInit.fnFooterCallback, 'user' );
_fnCallbackReg( oSettings, 'aoInitComplete', oInit.fnInitComplete, 'user' );
_fnCallbackReg( oSettings, 'aoPreDrawCallback', oInit.fnPreDrawCallback, 'user' );
oSettings.rowIdFn = _fnGetObjectDataFn( oInit.rowId );
/* Browser support detection */
_fnBrowserDetect( oSettings );
var oClasses = oSettings.oClasses;
$.extend( oClasses, DataTable.ext.classes, oInit.oClasses );
$this.addClass( oClasses.sTable );
if ( oSettings.iInitDisplayStart === undefined )
{
/* Display start point, taking into account the save saving */
oSettings.iInitDisplayStart = oInit.iDisplayStart;
oSettings._iDisplayStart = oInit.iDisplayStart;
}
if ( oInit.iDeferLoading !== null )
{
oSettings.bDeferLoading = true;
var tmp = Array.isArray( oInit.iDeferLoading );
oSettings._iRecordsDisplay = tmp ? oInit.iDeferLoading[0] : oInit.iDeferLoading;
oSettings._iRecordsTotal = tmp ? oInit.iDeferLoading[1] : oInit.iDeferLoading;
}
/* Language definitions */
var oLanguage = oSettings.oLanguage;
$.extend( true, oLanguage, oInit.oLanguage );
if ( oLanguage.sUrl )
{
/* Get the language definitions from a file - because this Ajax call makes the language
* get async to the remainder of this function we use bInitHandedOff to indicate that
* _fnInitialise will be fired by the returned Ajax handler, rather than the constructor
*/
$.ajax( {
dataType: 'json',
url: oLanguage.sUrl,
success: function ( json ) {
_fnLanguageCompat( json );
_fnCamelToHungarian( defaults.oLanguage, json );
$.extend( true, oLanguage, json );
_fnCallbackFire( oSettings, null, 'i18n', [oSettings]);
_fnInitialise( oSettings );
},
error: function () {
// Error occurred loading language file, continue on as best we can
_fnInitialise( oSettings );
}
} );
bInitHandedOff = true;
}
else {
_fnCallbackFire( oSettings, null, 'i18n', [oSettings]);
}
/*
* Stripes
*/
if ( oInit.asStripeClasses === null )
{
oSettings.asStripeClasses =[
oClasses.sStripeOdd,
oClasses.sStripeEven
];
}
/* Remove row stripe classes if they are already on the table row */
var stripeClasses = oSettings.asStripeClasses;
var rowOne = $this.children('tbody').find('tr').eq(0);
if ( $.inArray( true, $.map( stripeClasses, function(el, i) {
return rowOne.hasClass(el);
} ) ) !== -1 ) {
$('tbody tr', this).removeClass( stripeClasses.join(' ') );
oSettings.asDestroyStripes = stripeClasses.slice();
}
/*
* Columns
* See if we should load columns automatically or use defined ones
*/
var anThs = [];
var aoColumnsInit;
var nThead = this.getElementsByTagName('thead');
if ( nThead.length !== 0 )
{
_fnDetectHeader( oSettings.aoHeader, nThead[0] );
anThs = _fnGetUniqueThs( oSettings );
}
/* If not given a column array, generate one with nulls */
if ( oInit.aoColumns === null )
{
aoColumnsInit = [];
for ( i=0, iLen=anThs.length ; i<iLen ; i++ )
{
aoColumnsInit.push( null );
}
}
else
{
aoColumnsInit = oInit.aoColumns;
}
/* Add the columns */
for ( i=0, iLen=aoColumnsInit.length ; i<iLen ; i++ )
{
_fnAddColumn( oSettings, anThs ? anThs[i] : null );
}
/* Apply the column definitions */
_fnApplyColumnDefs( oSettings, oInit.aoColumnDefs, aoColumnsInit, function (iCol, oDef) {
_fnColumnOptions( oSettings, iCol, oDef );
} );
/* HTML5 attribute detection - build an mData object automatically if the
* attributes are found
*/
if ( rowOne.length ) {
var a = function ( cell, name ) {
return cell.getAttribute( 'data-'+name ) !== null ? name : null;
};
$( rowOne[0] ).children('th, td').each( function (i, cell) {
var col = oSettings.aoColumns[i];
if ( col.mData === i ) {
var sort = a( cell, 'sort' ) || a( cell, 'order' );
var filter = a( cell, 'filter' ) || a( cell, 'search' );
if ( sort !== null || filter !== null ) {
col.mData = {
_: i+'.display',
sort: sort !== null ? i+'.@data-'+sort : undefined,
type: sort !== null ? i+'.@data-'+sort : undefined,
filter: filter !== null ? i+'.@data-'+filter : undefined
};
_fnColumnOptions( oSettings, i );
}
}
} );
}
var features = oSettings.oFeatures;
var loadedInit = function () {
/*
* Sorting
* @todo For modularisation (1.11) this needs to do into a sort start up handler
*/
// If aaSorting is not defined, then we use the first indicator in asSorting
// in case that has been altered, so the default sort reflects that option
if ( oInit.aaSorting === undefined ) {
var sorting = oSettings.aaSorting;
for ( i=0, iLen=sorting.length ; i<iLen ; i++ ) {
sorting[i][1] = oSettings.aoColumns[ i ].asSorting[0];
}
}
/* Do a first pass on the sorting classes (allows any size changes to be taken into
* account, and also will apply sorting disabled classes if disabled
*/
_fnSortingClasses( oSettings );
if ( features.bSort ) {
_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
if ( oSettings.bSorted ) {
var aSort = _fnSortFlatten( oSettings );
var sortedColumns = {};
$.each( aSort, function (i, val) {
sortedColumns[ val.src ] = val.dir;
} );
_fnCallbackFire( oSettings, null, 'order', [oSettings, aSort, sortedColumns] );
_fnSortAria( oSettings );
}
} );
}
_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
if ( oSettings.bSorted || _fnDataSource( oSettings ) === 'ssp' || features.bDeferRender ) {
_fnSortingClasses( oSettings );
}
}, 'sc' );
/*
* Final init
* Cache the header, body and footer as required, creating them if needed
*/
// Work around for Webkit bug 83867 - store the caption-side before removing from doc
var captions = $this.children('caption').each( function () {
this._captionSide = $(this).css('caption-side');
} );
var thead = $this.children('thead');
if ( thead.length === 0 ) {
thead = $('<thead/>').appendTo($this);
}
oSettings.nTHead = thead[0];
var tbody = $this.children('tbody');
if ( tbody.length === 0 ) {
tbody = $('<tbody/>').appendTo($this);
}
oSettings.nTBody = tbody[0];
var tfoot = $this.children('tfoot');
if ( tfoot.length === 0 && captions.length > 0 && (oSettings.oScroll.sX !== "" || oSettings.oScroll.sY !== "") ) {
// If we are a scrolling table, and no footer has been given, then we need to create
// a tfoot element for the caption element to be appended to
tfoot = $('<tfoot/>').appendTo($this);
}
if ( tfoot.length === 0 || tfoot.children().length === 0 ) {
$this.addClass( oClasses.sNoFooter );
}
else if ( tfoot.length > 0 ) {
oSettings.nTFoot = tfoot[0];
_fnDetectHeader( oSettings.aoFooter, oSettings.nTFoot );
}
/* Check if there is data passing into the constructor */
if ( oInit.aaData ) {
for ( i=0 ; i<oInit.aaData.length ; i++ ) {
_fnAddData( oSettings, oInit.aaData[ i ] );
}
}
else if ( oSettings.bDeferLoading || _fnDataSource( oSettings ) == 'dom' ) {
/* Grab the data from the page - only do this when deferred loading or no Ajax
* source since there is no point in reading the DOM data if we are then going
* to replace it with Ajax data
*/
_fnAddTr( oSettings, $(oSettings.nTBody).children('tr') );
}
/* Copy the data index array */
oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
/* Initialisation complete - table can be drawn */
oSettings.bInitialised = true;
/* Check if we need to initialise the table (it might not have been handed off to the
* language processor)
*/
if ( bInitHandedOff === false ) {
_fnInitialise( oSettings );
}
};
/* Must be done after everything which can be overridden by the state saving! */
if ( oInit.bStateSave )
{
features.bStateSave = true;
_fnCallbackReg( oSettings, 'aoDrawCallback', _fnSaveState, 'state_save' );
_fnLoadState( oSettings, oInit, loadedInit );
}
else {
loadedInit();
}