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/*
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* File: FixedHeader.js
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* Version: 2.0.4
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* Description: "Fix" a header at the top of the table, so it scrolls with the table
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* Author: Allan Jardine (www.sprymedia.co.uk)
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* Created: Wed 16 Sep 2009 19:46:30 BST
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* Language: Javascript
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* License: LGPL
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* Project: Just a little bit of fun - enjoy :-)
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* Contact: www.sprymedia.co.uk/contact
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*
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* Copyright 2009-2010 Allan Jardine, all rights reserved.
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*/
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/*
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* Function: FixedHeader
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* Purpose: Provide 'fixed' header, footer and columns on an HTML table
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* Returns: object:FixedHeader - must be called with 'new'
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* Inputs: mixed:mTable - target table
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* 1. DataTable object - when using FixedHeader with DataTables, or
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* 2. HTML table node - when using FixedHeader without DataTables
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* object:oInit - initialisation settings, with the following properties (each optional)
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* bool:top - fix the header (default true)
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* bool:bottom - fix the footer (default false)
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* bool:left - fix the left most column (default false)
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* bool:right - fix the right most column (default false)
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* int:zTop - fixed header zIndex
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* int:zBottom - fixed footer zIndex
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* int:zLeft - fixed left zIndex
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* int:zRight - fixed right zIndex
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*/
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var FixedHeader = function ( mTable, oInit ) {
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/* Sanity check - you just know it will happen */
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if ( typeof this.fnInit != 'function' )
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{
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alert( "FixedHeader warning: FixedHeader must be initialised with the 'new' keyword." );
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return;
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}
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var that = this;
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var oSettings = {
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"aoCache": [],
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"oSides": {
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"top": true,
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"bottom": false,
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"left": false,
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"right": false
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},
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"oZIndexes": {
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"top": 104,
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"bottom": 103,
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"left": 102,
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"right": 101
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},
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"oMes": {
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"iTableWidth": 0,
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"iTableHeight": 0,
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"iTableLeft": 0,
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"iTableRight": 0, /* note this is left+width, not actually "right" */
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"iTableTop": 0,
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"iTableBottom": 0 /* note this is top+height, not actually "bottom" */
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},
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"nTable": null,
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"bUseAbsPos": false,
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"bFooter": false
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};
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/*
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* Function: fnGetSettings
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* Purpose: Get the settings for this object
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* Returns: object: - settings object
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* Inputs: -
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*/
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this.fnGetSettings = function () {
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return oSettings;
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};
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/*
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* Function: fnUpdate
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* Purpose: Update the positioning and copies of the fixed elements
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* Returns: -
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* Inputs: -
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*/
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this.fnUpdate = function () {
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this._fnUpdateClones();
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this._fnUpdatePositions();
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};
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/* Let's do it */
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this.fnInit( mTable, oInit );
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};
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/*
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* Variable: FixedHeader
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* Purpose: Prototype for FixedHeader
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* Scope: global
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*/
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FixedHeader.prototype = {
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Initialisation
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*/
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/*
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* Function: fnInit
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* Purpose: The "constructor"
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* Returns: -
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* Inputs: {as FixedHeader function}
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*/
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fnInit: function ( oTable, oInit )
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{
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var s = this.fnGetSettings();
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var that = this;
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/* Record the user definable settings */
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this.fnInitSettings( s, oInit );
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/* DataTables specific stuff */
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if ( typeof oTable.fnSettings == 'function' )
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{
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if ( typeof oTable.fnVersionCheck == 'functon' &&
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oTable.fnVersionCheck( '1.6.0' ) !== true )
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{
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alert( "FixedHeader 2 required DataTables 1.6.0 or later. "+
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"Please upgrade your DataTables installation" );
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return;
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}
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var oDtSettings = oTable.fnSettings();
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if ( oDtSettings.oScroll.sX != "" || oDtSettings.oScroll.sY != "" )
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{
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alert( "FixedHeader 2 is not supported with DataTables' scrolling mode at this time" );
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return;
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}
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s.nTable = oDtSettings.nTable;
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oDtSettings.aoDrawCallback.push( {
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"fn": function () {
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FixedHeader.fnMeasure();
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that._fnUpdateClones.call(that);
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that._fnUpdatePositions.call(that);
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},
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"sName": "FixedHeader"
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} );
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}
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else
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{
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s.nTable = oTable;
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}
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s.bFooter = ($('>tfoot', s.nTable).length > 0) ? true : false;
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/* "Detect" browsers that don't support absolute positioing - or have bugs */
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s.bUseAbsPos = (jQuery.browser.msie && (jQuery.browser.version=="6.0"||jQuery.browser.version=="7.0"));
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/* Add the 'sides' that are fixed */
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if ( s.oSides.top )
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{
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s.aoCache.push( that._fnCloneTable( "fixedHeader", "FixedHeader_Header", that._fnCloneThead ) );
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}
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if ( s.oSides.bottom )
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{
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s.aoCache.push( that._fnCloneTable( "fixedFooter", "FixedHeader_Footer", that._fnCloneTfoot ) );
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}
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if ( s.oSides.left )
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{
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s.aoCache.push( that._fnCloneTable( "fixedLeft", "FixedHeader_Left", that._fnCloneTLeft ) );
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}
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if ( s.oSides.right )
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{
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s.aoCache.push( that._fnCloneTable( "fixedRight", "FixedHeader_Right", that._fnCloneTRight ) );
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}
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/* Event listeners for window movement */
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FixedHeader.afnScroll.push( function () {
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that._fnUpdatePositions.call(that);
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} );
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jQuery(window).resize( function () {
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FixedHeader.fnMeasure();
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that._fnUpdateClones.call(that);
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that._fnUpdatePositions.call(that);
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} );
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/* Get things right to start with */
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FixedHeader.fnMeasure();
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that._fnUpdateClones();
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that._fnUpdatePositions();
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},
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Support functions
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*/
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/*
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* Function: fnInitSettings
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* Purpose: Take the user's settings and copy them to our local store
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* Returns: -
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* Inputs: object:s - the local settings object
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* object:oInit - the user's settings object
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*/
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fnInitSettings: function ( s, oInit )
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{
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if ( typeof oInit != 'undefined' )
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{
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if ( typeof oInit.top != 'undefined' ) {
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s.oSides.top = oInit.top;
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}
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if ( typeof oInit.bottom != 'undefined' ) {
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s.oSides.bottom = oInit.bottom;
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}
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if ( typeof oInit.left != 'undefined' ) {
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s.oSides.left = oInit.left;
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}
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if ( typeof oInit.right != 'undefined' ) {
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s.oSides.right = oInit.right;
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}
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if ( typeof oInit.zTop != 'undefined' ) {
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s.oZIndexes.top = oInit.zTop;
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}
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if ( typeof oInit.zBottom != 'undefined' ) {
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s.oZIndexes.bottom = oInit.zBottom;
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}
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if ( typeof oInit.zLeft != 'undefined' ) {
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s.oZIndexes.left = oInit.zLeft;
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}
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if ( typeof oInit.zRight != 'undefined' ) {
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s.oZIndexes.right = oInit.zRight;
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}
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}
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/* Detect browsers which have poor position:fixed support so we can use absolute positions.
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* This is much slower since the position must be updated for each scroll, but widens
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* compatibility
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*/
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s.bUseAbsPos = (jQuery.browser.msie &&
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(jQuery.browser.version=="6.0"||jQuery.browser.version=="7.0"));
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},
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/*
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* Function: _fnCloneTable
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* Purpose: Clone the table node and do basic initialisation
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* Returns: -
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* Inputs: -
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*/
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_fnCloneTable: function ( sType, sClass, fnClone )
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{
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var s = this.fnGetSettings();
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var nCTable;
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/* We know that the table _MUST_ has a DIV wrapped around it, because this is simply how
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* DataTables works. Therefore, we can set this to be relatively position (if it is not
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* alreadu absolute, and use this as the base point for the cloned header
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*/
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if ( jQuery(s.nTable.parentNode).css('position') != "absolute" )
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{
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s.nTable.parentNode.style.position = "relative";
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}
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/* Just a shallow clone will do - we only want the table node */
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nCTable = s.nTable.cloneNode( false );
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var nDiv = document.createElement( 'div' );
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nDiv.style.position = "absolute";
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nDiv.className += " FixedHeader_Cloned "+sType+" "+sClass;
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/* Set the zIndexes */
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if ( sType == "fixedHeader" )
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{
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nDiv.style.zIndex = s.oZIndexes.top;
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}
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if ( sType == "fixedFooter" )
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{
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nDiv.style.zIndex = s.oZIndexes.bottom;
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}
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if ( sType == "fixedLeft" )
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{
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nDiv.style.zIndex = s.oZIndexes.left;
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}
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else if ( sType == "fixedRight" )
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{
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nDiv.style.zIndex = s.oZIndexes.right;
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}
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/* Insert the newly cloned table into the DOM, on top of the "real" header */
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nDiv.appendChild( nCTable );
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document.body.appendChild( nDiv );
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return {
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"nNode": nCTable,
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"nWrapper": nDiv,
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"sType": sType,
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"sPosition": "",
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"sTop": "",
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"sLeft": "",
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"fnClone": fnClone
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};
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},
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/*
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* Function: _fnUpdatePositions
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* Purpose: Get the current positioning of the table in the DOM
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* Returns: -
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* Inputs: -
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*/
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_fnMeasure: function ()
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{
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var
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s = this.fnGetSettings(),
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m = s.oMes,
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jqTable = jQuery(s.nTable),
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oOffset = jqTable.offset(),
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iParentScrollTop = this._fnSumScroll( s.nTable.parentNode, 'scrollTop' ),
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iParentScrollLeft = this._fnSumScroll( s.nTable.parentNode, 'scrollLeft' );
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m.iTableWidth = jqTable.outerWidth();
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m.iTableHeight = jqTable.outerHeight();
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m.iTableLeft = oOffset.left + s.nTable.parentNode.scrollLeft;
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m.iTableTop = oOffset.top + iParentScrollTop;
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m.iTableRight = m.iTableLeft + m.iTableWidth;
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m.iTableRight = FixedHeader.oDoc.iWidth - m.iTableLeft - m.iTableWidth;
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m.iTableBottom = FixedHeader.oDoc.iHeight - m.iTableTop - m.iTableHeight;
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},
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/*
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* Function: _fnSumScroll
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* Purpose: Sum node parameters all the way to the top
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* Returns: int: sum
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* Inputs: node:n - node to consider
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* string:side - scrollTop or scrollLeft
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*/
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_fnSumScroll: function ( n, side )
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{
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var i = n[side];
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while ( n = n.parentNode )
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{
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if ( n.nodeName != 'HTML' && n.nodeName != 'BODY' )
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{
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break;
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}
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i = n[side];
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}
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return i;
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},
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/*
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* Function: _fnUpdatePositions
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* Purpose: Loop over the fixed elements for this table and update their positions
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* Returns: -
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* Inputs: -
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*/
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_fnUpdatePositions: function ()
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{
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var s = this.fnGetSettings();
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this._fnMeasure();
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for ( var i=0, iLen=s.aoCache.length ; i<iLen ; i++ )
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{
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if ( s.aoCache[i].sType == "fixedHeader" )
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{
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this._fnScrollFixedHeader( s.aoCache[i] );
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}
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|
366 |
else if ( s.aoCache[i].sType == "fixedFooter" )
|
|
|
367 |
{
|
|
|
368 |
this._fnScrollFixedFooter( s.aoCache[i] );
|
|
|
369 |
}
|
|
|
370 |
else if ( s.aoCache[i].sType == "fixedLeft" )
|
|
|
371 |
{
|
|
|
372 |
this._fnScrollHorizontalLeft( s.aoCache[i] );
|
|
|
373 |
}
|
|
|
374 |
else
|
|
|
375 |
{
|
|
|
376 |
this._fnScrollHorizontalRight( s.aoCache[i] );
|
|
|
377 |
}
|
|
|
378 |
}
|
|
|
379 |
},
|
|
|
380 |
|
|
|
381 |
/*
|
|
|
382 |
* Function: _fnUpdateClones
|
|
|
383 |
* Purpose: Loop over the fixed elements for this table and call their cloning functions
|
|
|
384 |
* Returns: -
|
|
|
385 |
* Inputs: -
|
|
|
386 |
*/
|
|
|
387 |
_fnUpdateClones: function ()
|
|
|
388 |
{
|
|
|
389 |
var s = this.fnGetSettings();
|
|
|
390 |
for ( var i=0, iLen=s.aoCache.length ; i<iLen ; i++ )
|
|
|
391 |
{
|
|
|
392 |
s.aoCache[i].fnClone.call( this, s.aoCache[i] );
|
|
|
393 |
}
|
|
|
394 |
},
|
|
|
395 |
|
|
|
396 |
|
|
|
397 |
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
|
398 |
* Scrolling functions
|
|
|
399 |
*/
|
|
|
400 |
|
|
|
401 |
/*
|
|
|
402 |
* Function: _fnScrollHorizontalLeft
|
|
|
403 |
* Purpose: Update the positioning of the scrolling elements
|
|
|
404 |
* Returns: -
|
|
|
405 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
406 |
*/
|
|
|
407 |
_fnScrollHorizontalRight: function ( oCache )
|
|
|
408 |
{
|
|
|
409 |
var
|
|
|
410 |
s = this.fnGetSettings(),
|
|
|
411 |
oMes = s.oMes,
|
|
|
412 |
oWin = FixedHeader.oWin,
|
|
|
413 |
oDoc = FixedHeader.oDoc,
|
|
|
414 |
nTable = oCache.nWrapper,
|
|
|
415 |
iFixedWidth = jQuery(nTable).outerWidth();
|
|
|
416 |
|
|
|
417 |
if ( oWin.iScrollRight < oMes.iTableRight )
|
|
|
418 |
{
|
|
|
419 |
/* Fully right aligned */
|
|
|
420 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
421 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
422 |
this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft+oMes.iTableWidth-iFixedWidth)+"px", 'left', nTable.style );
|
|
|
423 |
}
|
|
|
424 |
else if ( oMes.iTableLeft < oDoc.iWidth-oWin.iScrollRight-iFixedWidth )
|
|
|
425 |
{
|
|
|
426 |
/* Middle */
|
|
|
427 |
if ( s.bUseAbsPos )
|
|
|
428 |
{
|
|
|
429 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
430 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
431 |
this._fnUpdateCache( oCache, 'sLeft', (oDoc.iWidth-oWin.iScrollRight-iFixedWidth)+"px", 'left', nTable.style );
|
|
|
432 |
}
|
|
|
433 |
else
|
|
|
434 |
{
|
|
|
435 |
this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
|
|
|
436 |
this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop-oWin.iScrollTop)+"px", 'top', nTable.style );
|
|
|
437 |
this._fnUpdateCache( oCache, 'sLeft', (oWin.iWidth-iFixedWidth)+"px", 'left', nTable.style );
|
|
|
438 |
}
|
|
|
439 |
}
|
|
|
440 |
else
|
|
|
441 |
{
|
|
|
442 |
/* Fully left aligned */
|
|
|
443 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
444 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
445 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
446 |
}
|
|
|
447 |
},
|
|
|
448 |
|
|
|
449 |
/*
|
|
|
450 |
* Function: _fnScrollHorizontalLeft
|
|
|
451 |
* Purpose: Update the positioning of the scrolling elements
|
|
|
452 |
* Returns: -
|
|
|
453 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
454 |
*/
|
|
|
455 |
_fnScrollHorizontalLeft: function ( oCache )
|
|
|
456 |
{
|
|
|
457 |
var
|
|
|
458 |
s = this.fnGetSettings(),
|
|
|
459 |
oMes = s.oMes,
|
|
|
460 |
oWin = FixedHeader.oWin,
|
|
|
461 |
oDoc = FixedHeader.oDoc,
|
|
|
462 |
nTable = oCache.nWrapper,
|
|
|
463 |
iCellWidth = jQuery(nTable).outerWidth();
|
|
|
464 |
|
|
|
465 |
if ( oWin.iScrollLeft < oMes.iTableLeft )
|
|
|
466 |
{
|
|
|
467 |
/* Fully left align */
|
|
|
468 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
469 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
470 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
471 |
}
|
|
|
472 |
else if ( oWin.iScrollLeft < oMes.iTableLeft+oMes.iTableWidth-iCellWidth )
|
|
|
473 |
{
|
|
|
474 |
/* Middle */
|
|
|
475 |
if ( s.bUseAbsPos )
|
|
|
476 |
{
|
|
|
477 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
478 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
479 |
this._fnUpdateCache( oCache, 'sLeft', oWin.iScrollLeft+"px", 'left', nTable.style );
|
|
|
480 |
}
|
|
|
481 |
else
|
|
|
482 |
{
|
|
|
483 |
this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
|
|
|
484 |
this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop-oWin.iScrollTop)+"px", 'top', nTable.style );
|
|
|
485 |
this._fnUpdateCache( oCache, 'sLeft', "0px", 'left', nTable.style );
|
|
|
486 |
}
|
|
|
487 |
}
|
|
|
488 |
else
|
|
|
489 |
{
|
|
|
490 |
/* Fully right align */
|
|
|
491 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
492 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
493 |
this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft+oMes.iTableWidth-iCellWidth)+"px", 'left', nTable.style );
|
|
|
494 |
}
|
|
|
495 |
},
|
|
|
496 |
|
|
|
497 |
/*
|
|
|
498 |
* Function: _fnScrollFixedFooter
|
|
|
499 |
* Purpose: Update the positioning of the scrolling elements
|
|
|
500 |
* Returns: -
|
|
|
501 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
502 |
*/
|
|
|
503 |
_fnScrollFixedFooter: function ( oCache )
|
|
|
504 |
{
|
|
|
505 |
var
|
|
|
506 |
s = this.fnGetSettings(),
|
|
|
507 |
oMes = s.oMes,
|
|
|
508 |
oWin = FixedHeader.oWin,
|
|
|
509 |
oDoc = FixedHeader.oDoc,
|
|
|
510 |
nTable = oCache.nWrapper,
|
|
|
511 |
iTheadHeight = jQuery("thead", s.nTable).outerHeight(),
|
|
|
512 |
iCellHeight = jQuery(nTable).outerHeight();
|
|
|
513 |
|
|
|
514 |
if ( oWin.iScrollBottom < oMes.iTableBottom )
|
|
|
515 |
{
|
|
|
516 |
/* Below */
|
|
|
517 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
518 |
this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+oMes.iTableHeight-iCellHeight)+"px", 'top', nTable.style );
|
|
|
519 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
520 |
}
|
|
|
521 |
else if ( oWin.iScrollBottom < oMes.iTableBottom+oMes.iTableHeight-iCellHeight-iTheadHeight )
|
|
|
522 |
{
|
|
|
523 |
/* Middle */
|
|
|
524 |
if ( s.bUseAbsPos )
|
|
|
525 |
{
|
|
|
526 |
this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
|
|
|
527 |
this._fnUpdateCache( oCache, 'sTop', (oDoc.iHeight-oWin.iScrollBottom-iCellHeight)+"px", 'top', nTable.style );
|
|
|
528 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
529 |
}
|
|
|
530 |
else
|
|
|
531 |
{
|
|
|
532 |
this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
|
|
|
533 |
this._fnUpdateCache( oCache, 'sTop', (oWin.iHeight-iCellHeight)+"px", 'top', nTable.style );
|
|
|
534 |
this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft-oWin.iScrollLeft)+"px", 'left', nTable.style );
|
|
|
535 |
}
|
|
|
536 |
}
|
|
|
537 |
else
|
|
|
538 |
{
|
|
|
539 |
/* Above */
|
|
|
540 |
this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
|
|
|
541 |
this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+iCellHeight)+"px", 'top', nTable.style );
|
|
|
542 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
543 |
}
|
|
|
544 |
},
|
|
|
545 |
|
|
|
546 |
/*
|
|
|
547 |
* Function: _fnScrollFixedHeader
|
|
|
548 |
* Purpose: Update the positioning of the scrolling elements
|
|
|
549 |
* Returns: -
|
|
|
550 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
551 |
*/
|
|
|
552 |
_fnScrollFixedHeader: function ( oCache )
|
|
|
553 |
{
|
|
|
554 |
var
|
|
|
555 |
s = this.fnGetSettings(),
|
|
|
556 |
oMes = s.oMes,
|
|
|
557 |
oWin = FixedHeader.oWin,
|
|
|
558 |
oDoc = FixedHeader.oDoc,
|
|
|
559 |
nTable = oCache.nWrapper,
|
|
|
560 |
iTbodyHeight = s.nTable.getElementsByTagName('tbody')[0].offsetHeight;
|
|
|
561 |
|
|
|
562 |
if ( oMes.iTableTop > oWin.iScrollTop )
|
|
|
563 |
{
|
|
|
564 |
/* Above the table */
|
|
|
565 |
this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
|
|
|
566 |
this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
|
|
|
567 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
568 |
}
|
|
|
569 |
else if ( oWin.iScrollTop > oMes.iTableTop+iTbodyHeight )
|
|
|
570 |
{
|
|
|
571 |
/* At the bottom of the table */
|
|
|
572 |
this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
|
|
|
573 |
this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+iTbodyHeight)+"px", 'top', nTable.style );
|
|
|
574 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
575 |
}
|
|
|
576 |
else
|
|
|
577 |
{
|
|
|
578 |
/* In the middle of the table */
|
|
|
579 |
if ( s.bUseAbsPos )
|
|
|
580 |
{
|
|
|
581 |
this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
|
|
|
582 |
this._fnUpdateCache( oCache, 'sTop', oWin.iScrollTop+"px", 'top', nTable.style );
|
|
|
583 |
this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
|
|
|
584 |
}
|
|
|
585 |
else
|
|
|
586 |
{
|
|
|
587 |
this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
|
|
|
588 |
this._fnUpdateCache( oCache, 'sTop', "0px", 'top', nTable.style );
|
|
|
589 |
this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft-oWin.iScrollLeft)+"px", 'left', nTable.style );
|
|
|
590 |
}
|
|
|
591 |
}
|
|
|
592 |
},
|
|
|
593 |
|
|
|
594 |
/*
|
|
|
595 |
* Function: _fnUpdateCache
|
|
|
596 |
* Purpose: Check the cache and update cache and value if needed
|
|
|
597 |
* Returns: -
|
|
|
598 |
* Inputs: object:oCache - local cache object
|
|
|
599 |
* string:sCache - cache property
|
|
|
600 |
* string:sSet - value to set
|
|
|
601 |
* string:sProperty - object property to set
|
|
|
602 |
* object:oObj - object to update
|
|
|
603 |
*/
|
|
|
604 |
_fnUpdateCache: function ( oCache, sCache, sSet, sProperty, oObj )
|
|
|
605 |
{
|
|
|
606 |
if ( oCache[sCache] != sSet )
|
|
|
607 |
{
|
|
|
608 |
oObj[sProperty] = sSet;
|
|
|
609 |
oCache[sCache] = sSet;
|
|
|
610 |
}
|
|
|
611 |
},
|
|
|
612 |
|
|
|
613 |
|
|
|
614 |
|
|
|
615 |
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
|
616 |
* Cloning functions
|
|
|
617 |
*/
|
|
|
618 |
|
|
|
619 |
/*
|
|
|
620 |
* Function: _fnCloneThead
|
|
|
621 |
* Purpose: Clone the thead element
|
|
|
622 |
* Returns: -
|
|
|
623 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
624 |
*/
|
|
|
625 |
_fnCloneThead: function ( oCache )
|
|
|
626 |
{
|
|
|
627 |
var s = this.fnGetSettings();
|
|
|
628 |
var nTable = oCache.nNode;
|
|
|
629 |
|
|
|
630 |
/* Set the wrapper width to match that of the cloned table */
|
|
|
631 |
oCache.nWrapper.style.width = jQuery(s.nTable).outerWidth()+"px";
|
|
|
632 |
|
|
|
633 |
/* Remove any children the cloned table has */
|
|
|
634 |
while ( nTable.childNodes.length > 0 )
|
|
|
635 |
{
|
|
|
636 |
jQuery('thead th', nTable).unbind( 'click' );
|
|
|
637 |
nTable.removeChild( nTable.childNodes[0] );
|
|
|
638 |
}
|
|
|
639 |
|
|
|
640 |
/* Clone the DataTables header */
|
|
|
641 |
var nThead = jQuery('thead', s.nTable).clone(true)[0];
|
|
|
642 |
nTable.appendChild( nThead );
|
|
|
643 |
|
|
|
644 |
/* Copy the widths across - apparently a clone isn't good enough for this */
|
|
|
645 |
jQuery("thead:eq(0)>tr th", s.nTable).each( function (i) {
|
|
|
646 |
jQuery("thead:eq(0)>tr th:eq("+i+")", nTable).width( jQuery(this).width() );
|
|
|
647 |
} );
|
|
|
648 |
|
|
|
649 |
jQuery("thead:eq(0)>tr td", s.nTable).each( function (i) {
|
|
|
650 |
jQuery("thead:eq(0)>tr th:eq("+i+")", nTable)[0].style.width( jQuery(this).width() );
|
|
|
651 |
} );
|
|
|
652 |
},
|
|
|
653 |
|
|
|
654 |
/*
|
|
|
655 |
* Function: _fnCloneTfoot
|
|
|
656 |
* Purpose: Clone the tfoot element
|
|
|
657 |
* Returns: -
|
|
|
658 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
659 |
*/
|
|
|
660 |
_fnCloneTfoot: function ( oCache )
|
|
|
661 |
{
|
|
|
662 |
var s = this.fnGetSettings();
|
|
|
663 |
var nTable = oCache.nNode;
|
|
|
664 |
|
|
|
665 |
/* Set the wrapper width to match that of the cloned table */
|
|
|
666 |
oCache.nWrapper.style.width = jQuery(s.nTable).outerWidth()+"px";
|
|
|
667 |
|
|
|
668 |
/* Remove any children the cloned table has */
|
|
|
669 |
while ( nTable.childNodes.length > 0 )
|
|
|
670 |
{
|
|
|
671 |
nTable.removeChild( nTable.childNodes[0] );
|
|
|
672 |
}
|
|
|
673 |
|
|
|
674 |
/* Clone the DataTables footer */
|
|
|
675 |
var nTfoot = jQuery('tfoot', s.nTable).clone(true)[0];
|
|
|
676 |
nTable.appendChild( nTfoot );
|
|
|
677 |
|
|
|
678 |
/* Copy the widths across - apparently a clone isn't good enough for this */
|
|
|
679 |
jQuery("tfoot:eq(0)>tr th", s.nTable).each( function (i) {
|
|
|
680 |
jQuery("tfoot:eq(0)>tr th:eq("+i+")", nTable).width( jQuery(this).width() );
|
|
|
681 |
} );
|
|
|
682 |
|
|
|
683 |
jQuery("tfoot:eq(0)>tr td", s.nTable).each( function (i) {
|
|
|
684 |
jQuery("tfoot:eq(0)>tr th:eq("+i+")", nTable)[0].style.width( jQuery(this).width() );
|
|
|
685 |
} );
|
|
|
686 |
},
|
|
|
687 |
|
|
|
688 |
/*
|
|
|
689 |
* Function: _fnCloneTLeft
|
|
|
690 |
* Purpose: Clone the left column
|
|
|
691 |
* Returns: -
|
|
|
692 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
693 |
*/
|
|
|
694 |
_fnCloneTLeft: function ( oCache )
|
|
|
695 |
{
|
|
|
696 |
var s = this.fnGetSettings();
|
|
|
697 |
var nTable = oCache.nNode;
|
|
|
698 |
var iCols = jQuery('tbody tr:eq(0) td', s.nTable).length;
|
|
|
699 |
var bRubbishOldIE = ($.browser.msie && ($.browser.version == "6.0" || $.browser.version == "7.0"));
|
|
|
700 |
|
|
|
701 |
/* Remove any children the cloned table has */
|
|
|
702 |
while ( nTable.childNodes.length > 0 )
|
|
|
703 |
{
|
|
|
704 |
nTable.removeChild( nTable.childNodes[0] );
|
|
|
705 |
}
|
|
|
706 |
|
|
|
707 |
/* Is this the most efficient way to do this - it looks horrible... */
|
|
|
708 |
nTable.appendChild( jQuery("thead", s.nTable).clone(true)[0] );
|
|
|
709 |
nTable.appendChild( jQuery("tbody", s.nTable).clone(true)[0] );
|
|
|
710 |
if ( s.bFooter )
|
|
|
711 |
{
|
|
|
712 |
nTable.appendChild( jQuery("tfoot", s.nTable).clone(true)[0] );
|
|
|
713 |
}
|
|
|
714 |
|
|
|
715 |
jQuery('thead tr th:gt(0)', nTable).remove();
|
|
|
716 |
jQuery('tfoot tr th:gt(0)', nTable).remove();
|
|
|
717 |
|
|
|
718 |
/* Basically the same as used in FixedColumns - remove and copy heights */
|
|
|
719 |
$('tbody tr', nTable).each( function (k) {
|
|
|
720 |
$('td:gt(0)', this).remove();
|
|
|
721 |
|
|
|
722 |
/* Can we use some kind of object detection here?! This is very nasty - damn browsers */
|
|
|
723 |
if ( $.browser.mozilla || $.browser.opera )
|
|
|
724 |
{
|
|
|
725 |
$('td', this).height( $('tbody tr:eq('+k+')', that.dom.body).outerHeight() );
|
|
|
726 |
}
|
|
|
727 |
else
|
|
|
728 |
{
|
|
|
729 |
$('td', this).height( $('tbody tr:eq('+k+')', that.dom.body).outerHeight() - iBoxHack );
|
|
|
730 |
}
|
|
|
731 |
|
|
|
732 |
if ( !bRubbishOldIE )
|
|
|
733 |
{
|
|
|
734 |
$('tbody tr:eq('+k+')', that.dom.body).height( $('tbody tr:eq('+k+')', that.dom.body).outerHeight() );
|
|
|
735 |
}
|
|
|
736 |
} );
|
|
|
737 |
|
|
|
738 |
var iWidth = jQuery('thead tr th:eq(0)', s.nTable).outerWidth();
|
|
|
739 |
nTable.style.width = iWidth+"px";
|
|
|
740 |
oCache.nWrapper.style.width = iWidth+"px";
|
|
|
741 |
},
|
|
|
742 |
|
|
|
743 |
/*
|
|
|
744 |
* Function: _fnCloneTRight
|
|
|
745 |
* Purpose: Clone the right most colun
|
|
|
746 |
* Returns: -
|
|
|
747 |
* Inputs: object:oCache - the cahced values for this fixed element
|
|
|
748 |
*/
|
|
|
749 |
_fnCloneTRight: function ( oCache )
|
|
|
750 |
{
|
|
|
751 |
var s = this.fnGetSettings();
|
|
|
752 |
var nTable = oCache.nNode;
|
|
|
753 |
var iCols = jQuery('tbody tr:eq(0) td', s.nTable).length;
|
|
|
754 |
var bRubbishOldIE = ($.browser.msie && ($.browser.version == "6.0" || $.browser.version == "7.0"));
|
|
|
755 |
|
|
|
756 |
/* Remove any children the cloned table has */
|
|
|
757 |
while ( nTable.childNodes.length > 0 )
|
|
|
758 |
{
|
|
|
759 |
nTable.removeChild( nTable.childNodes[0] );
|
|
|
760 |
}
|
|
|
761 |
|
|
|
762 |
/* Is this the most efficient way to do this - it looks horrible... */
|
|
|
763 |
nTable.appendChild( jQuery("thead", s.nTable).clone(true)[0] );
|
|
|
764 |
nTable.appendChild( jQuery("tbody", s.nTable).clone(true)[0] );
|
|
|
765 |
if ( s.bFooter )
|
|
|
766 |
{
|
|
|
767 |
nTable.appendChild( jQuery("tfoot", s.nTable).clone(true)[0] );
|
|
|
768 |
}
|
|
|
769 |
jQuery('thead tr th:not(:nth-child('+iCols+'n))', nTable).remove();
|
|
|
770 |
jQuery('tfoot tr th:not(:nth-child('+iCols+'n))', nTable).remove();
|
|
|
771 |
|
|
|
772 |
/* Basically the same as used in FixedColumns - remove and copy heights */
|
|
|
773 |
$('tbody tr', nTable).each( function (k) {
|
|
|
774 |
$('td:lt('+iCols-1+')', this).remove();
|
|
|
775 |
|
|
|
776 |
/* Can we use some kind of object detection here?! This is very nasty - damn browsers */
|
|
|
777 |
if ( $.browser.mozilla || $.browser.opera )
|
|
|
778 |
{
|
|
|
779 |
$('td', this).height( $('tbody tr:eq('+k+')', that.dom.body).outerHeight() );
|
|
|
780 |
}
|
|
|
781 |
else
|
|
|
782 |
{
|
|
|
783 |
$('td', this).height( $('tbody tr:eq('+k+')', that.dom.body).outerHeight() - iBoxHack );
|
|
|
784 |
}
|
|
|
785 |
|
|
|
786 |
if ( !bRubbishOldIE )
|
|
|
787 |
{
|
|
|
788 |
$('tbody tr:eq('+k+')', that.dom.body).height( $('tbody tr:eq('+k+')', that.dom.body).outerHeight() );
|
|
|
789 |
}
|
|
|
790 |
} );
|
|
|
791 |
|
|
|
792 |
var iWidth = jQuery('thead tr th:eq('+(iCols-1)+')', s.nTable).outerWidth();
|
|
|
793 |
nTable.style.width = iWidth+"px";
|
|
|
794 |
oCache.nWrapper.style.width = iWidth+"px";
|
|
|
795 |
}
|
|
|
796 |
};
|
|
|
797 |
|
|
|
798 |
|
|
|
799 |
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
|
800 |
* Static properties and methods
|
|
|
801 |
* We use these for speed! This information is common to all instances of FixedHeader, so no
|
|
|
802 |
* point if having them calculated and stored for each different instance.
|
|
|
803 |
*/
|
|
|
804 |
|
|
|
805 |
/*
|
|
|
806 |
* Variable: oWin
|
|
|
807 |
* Purpose: Store information about the window positioning
|
|
|
808 |
* Scope: FixedHeader
|
|
|
809 |
*/
|
|
|
810 |
FixedHeader.oWin = {
|
|
|
811 |
"iScrollTop": 0,
|
|
|
812 |
"iScrollRight": 0,
|
|
|
813 |
"iScrollBottom": 0,
|
|
|
814 |
"iScrollLeft": 0,
|
|
|
815 |
"iHeight": 0,
|
|
|
816 |
"iWidth": 0
|
|
|
817 |
};
|
|
|
818 |
|
|
|
819 |
/*
|
|
|
820 |
* Variable: oDoc
|
|
|
821 |
* Purpose: Store information about the document size
|
|
|
822 |
* Scope: FixedHeader
|
|
|
823 |
*/
|
|
|
824 |
FixedHeader.oDoc = {
|
|
|
825 |
"iHeight": 0,
|
|
|
826 |
"iWidth": 0
|
|
|
827 |
};
|
|
|
828 |
|
|
|
829 |
/*
|
|
|
830 |
* Variable: afnScroll
|
|
|
831 |
* Purpose: Array of functions that are to be used for the scrolling components
|
|
|
832 |
* Scope: FixedHeader
|
|
|
833 |
*/
|
|
|
834 |
FixedHeader.afnScroll = [];
|
|
|
835 |
|
|
|
836 |
/*
|
|
|
837 |
* Function: fnMeasure
|
|
|
838 |
* Purpose: Update the measurements for the window and document
|
|
|
839 |
* Returns: -
|
|
|
840 |
* Inputs: -
|
|
|
841 |
*/
|
|
|
842 |
FixedHeader.fnMeasure = function ()
|
|
|
843 |
{
|
|
|
844 |
var
|
|
|
845 |
jqWin = jQuery(window),
|
|
|
846 |
jqDoc = jQuery(document),
|
|
|
847 |
oWin = FixedHeader.oWin,
|
|
|
848 |
oDoc = FixedHeader.oDoc;
|
|
|
849 |
|
|
|
850 |
oDoc.iHeight = jqDoc.height();
|
|
|
851 |
oDoc.iWidth = jqDoc.width();
|
|
|
852 |
|
|
|
853 |
oWin.iHeight = jqWin.height();
|
|
|
854 |
oWin.iWidth = jqWin.width();
|
|
|
855 |
oWin.iScrollTop = jqWin.scrollTop();
|
|
|
856 |
oWin.iScrollLeft = jqWin.scrollLeft();
|
|
|
857 |
oWin.iScrollRight = oDoc.iWidth - oWin.iScrollLeft - oWin.iWidth;
|
|
|
858 |
oWin.iScrollBottom = oDoc.iHeight - oWin.iScrollTop - oWin.iHeight;
|
|
|
859 |
};
|
|
|
860 |
|
|
|
861 |
|
|
|
862 |
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
|
863 |
* Global processing
|
|
|
864 |
*/
|
|
|
865 |
|
|
|
866 |
/*
|
|
|
867 |
* Just one 'scroll' event handler in FixedHeader, which calls the required components. This is
|
|
|
868 |
* done as an optimisation, to reduce calculation and proagation time
|
|
|
869 |
*/
|
|
|
870 |
jQuery(window).scroll( function () {
|
|
|
871 |
FixedHeader.fnMeasure();
|
|
|
872 |
for ( var i=0, iLen=FixedHeader.afnScroll.length ; i<iLen ; i++ )
|
|
|
873 |
{
|
|
|
874 |
FixedHeader.afnScroll[i]();
|
|
|
875 |
}
|
|
|
876 |
} );
|