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/! KeyTable 1.2.1 ©2010-2014 SpryMedia Ltd - datatables.net/license / /* * @summary KeyTable * @description Spreadsheet like keyboard navigation for DataTables * @version 1.2.1 * @file dataTables.keyTable.js * @author SpryMedia Ltd (www.sprymedia.co.uk) * @contact www.sprymedia.co.uk/contact * @copyright Copyright 2009-2014 SpryMedia Ltd. * * This source file is free software, available under the following license: * MIT license - http://datatables.net/license/mit * * This source file is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details. * * For details please refer to: http://www.datatables.net / // Global scope for KeyTable for backwards compatibility. Will be removed in 1.3 var KeyTable; (function(window, document, undefined) { var factory = function( $, DataTable ) { "use strict"; KeyTable = function ( oInit ) { / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * API parameters * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * / / * Variable: block * Purpose: Flag whether or not KeyTable events should be processed * Scope: KeyTable - public / this.block = false; / * Variable: event * Purpose: Container for all event application methods * Scope: KeyTable - public * Notes: This object contains all the public methods for adding and removing events - these * are dynamically added later on / this.event = { "remove": {} }; / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * API methods * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * / / * Function: fnGetCurrentPosition * Purpose: Get the currently focused cell's position * Returns: array int: [ x, y ] * Inputs: void / this.fnGetCurrentPosition = function () { return [ _iOldX, _iOldY ]; }; / * Function: fnGetCurrentData * Purpose: Get the currently focused cell's data (innerHTML) * Returns: string: - data requested * Inputs: void / this.fnGetCurrentData = function () { return _nOldFocus.innerHTML; }; / * Function: fnGetCurrentTD * Purpose: Get the currently focused cell * Returns: node: - focused element * Inputs: void / this.fnGetCurrentTD = function () { return _nOldFocus; }; / * Function: fnSetPosition * Purpose: Set the position of the focused cell * Returns: - * Inputs: int:x - x coordinate * int:y - y coordinate * Notes: Thanks to Rohan Daxini for the basis of this function / this.fnSetPosition = function( x, y ) { if ( typeof x == 'object' && x.nodeName ) { _fnSetFocus( x ); } else { _fnSetFocus( _fnCellFromCoords(x, y) ); } }; / * Function: fnBlur * Purpose: Blur the current focus * Returns: - * Inputs: - / this.fnBlur = function() { _fnBlur(); }; / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Private parameters * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * / / * Variable: _nBody * Purpose: Body node of the table - cached for renference * Scope: KeyTable - private / var _nBody = null; / * Variable: * Purpose: * Scope: KeyTable - private / var _nOldFocus = null; / * Variable: _iOldX and _iOldY * Purpose: X and Y coords of the old elemet that was focused on * Scope: KeyTable - private / var _iOldX = null; var _iOldY = null; / * Variable: _that * Purpose: Scope saving for 'this' after a jQuery event * Scope: KeyTable - private / var _that = null; / * Variable: sFocusClass * Purpose: Class that should be used for focusing on a cell * Scope: KeyTable - private / var _sFocusClass = "focus"; / * Variable: _bKeyCapture * Purpose: Flag for should KeyTable capture key events or not * Scope: KeyTable - private / var _bKeyCapture = false; / * Variable: _oaoEvents * Purpose: Event cache object, one array for each supported event for speed of searching * Scope: KeyTable - private / var _oaoEvents = { "action": [], "esc": [], "focus": [], "blur": [] }; / * Variable: _oDatatable * Purpose: DataTables settings object for if we are actually using a * DataTables table * Scope: KeyTable - private / var _oDatatable = null; var _bForm; var _nInput; var _bInputFocused = false; / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Private methods * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * / / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Key table events / / * Function: _fnEventAddTemplate * Purpose: Create a function (with closure for sKey) event addition API * Returns: function: - template function * Inputs: string:sKey - type of event to detect / function _fnEventAddTemplate( sKey ) { / * Function: - * Purpose: API function for adding event to cache * Returns: - * Inputs: 1. node:x - target node to add event for * 2. function:y - callback function to apply * or * 1. int:x - x coord. of target cell (can be null for live events) * 2. int:y - y coord. of target cell (can be null for live events) * 3. function:z - callback function to apply * Notes: This function is (interally) overloaded (in as much as javascript allows for * that) - the target cell can be given by either node or coords. / return function ( x, y, z ) { if ( (x===null \|\| typeof x == "number") && (y===null \|\| typeof y == "number") && typeof z == "function" ) { _fnEventAdd( sKey, x, y, z ); } else if ( typeof x == "object" && typeof y == "function" ) { var aCoords = _fnCoordsFromCell( x ); _fnEventAdd( sKey, aCoords[0], aCoords[1], y ); } else { alert( "Unhandable event type was added: x" +x+ " y:" +y+ " z:" +z ); } }; } / * Function: _fnEventRemoveTemplate * Purpose: Create a function (with closure for sKey) event removal API * Returns: function: - template function * Inputs: string:sKey - type of event to detect / function _fnEventRemoveTemplate( sKey ) { / * Function: - * Purpose: API function for removing event from cache * Returns: int: - number of events removed * Inputs: 1. node:x - target node to remove event from * 2. function:y - callback function to apply * or * 1. int:x - x coord. of target cell (can be null for live events) * 2. int:y - y coord. of target cell (can be null for live events) * 3. function:z - callback function to remove - optional * Notes: This function is (interally) overloaded (in as much as javascript allows for * that) - the target cell can be given by either node or coords and the function * to remove is optional / return function ( x, y, z ) { if ( (x===null \|\| typeof arguments[0] == "number") && (y===null \|\| typeof arguments[1] == "number" ) ) { if ( typeof arguments[2] == "function" ) { _fnEventRemove( sKey, x, y, z ); } else { _fnEventRemove( sKey, x, y ); } } else if ( typeof arguments[0] == "object" ) { var aCoords = _fnCoordsFromCell( x ); if ( typeof arguments[1] == "function" ) { _fnEventRemove( sKey, aCoords[0], aCoords[1], y ); } else { _fnEventRemove( sKey, aCoords[0], aCoords[1] ); } } else { alert( "Unhandable event type was removed: x" +x+ " y:" +y+ " z:" +z ); } }; } / Use the template functions to add the event API functions / for ( var sKey in _oaoEvents ) { if ( sKey ) { this.event[sKey] = _fnEventAddTemplate( sKey ); this.event.remove[sKey] = _fnEventRemoveTemplate( sKey ); } } / * Function: _fnEventAdd * Purpose: Add an event to the internal cache * Returns: - * Inputs: string:sType - type of event to add, given by the available elements in _oaoEvents * int:x - x-coords to add event to - can be null for "blanket" event * int:y - y-coords to add event to - can be null for "blanket" event * function:fn - callback function for when triggered / function _fnEventAdd( sType, x, y, fn ) { _oaoEvents[sType].push( { "x": x, "y": y, "fn": fn } ); } / * Function: _fnEventRemove * Purpose: Remove an event from the event cache * Returns: int: - number of matching events removed * Inputs: string:sType - type of event to look for * node:nTarget - target table cell * function:fn - optional - remove this function. If not given all handlers of this * type will be removed / function _fnEventRemove( sType, x, y, fn ) { var iCorrector = 0; for ( var i=0, iLen=_oaoEvents[sType].length ; i<iLen-iCorrector ; i++ ) { if ( typeof fn != 'undefined' ) { if ( _oaoEvents[sType][i-iCorrector].x == x && _oaoEvents[sType][i-iCorrector].y == y && _oaoEvents[sType][i-iCorrector].fn == fn ) { _oaoEvents[sType].splice( i-iCorrector, 1 ); iCorrector++; } } else { if ( _oaoEvents[sType][i-iCorrector].x == x && _oaoEvents[sType][i-iCorrector].y == y ) { _oaoEvents[sType].splice( i, 1 ); return 1; } } } return iCorrector; } / * Function: _fnEventFire * Purpose: Look thought the events cache and fire off the event of interest * Returns: int:iFired - number of events fired * Inputs: string:sType - type of event to look for * int:x - x coord of cell * int:y - y coord of ell * Notes: It might be more efficient to return after the first event has been tirggered, * but that would mean that only one function of a particular type can be * subscribed to a particular node. / function _fnEventFire ( sType, x, y ) { var iFired = 0; var aEvents = _oaoEvents[sType]; for ( var i=0 ; i<aEvents.length ; i++ ) { if ( (aEvents[i].x == x && aEvents[i].y == y ) \|\| (aEvents[i].x === null && aEvents[i].y == y ) \|\| (aEvents[i].x == x && aEvents[i].y === null ) \|\| (aEvents[i].x === null && aEvents[i].y === null ) ) { aEvents[i].fn( _fnCellFromCoords(x,y), x, y ); iFired++; } } return iFired; } / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Focus functions / / * Function: _fnSetFocus * Purpose: Set focus on a node, and remove from an old node if needed * Returns: - * Inputs: node:nTarget - node we want to focus on * bool:bAutoScroll - optional - should we scroll the view port to the display / function _fnSetFocus( nTarget, bAutoScroll ) { / If node already has focus, just ignore this call / if ( _nOldFocus == nTarget ) { return; } if ( typeof bAutoScroll == 'undefined' ) { bAutoScroll = true; } / Remove old focus (with blur event if needed) / if ( _nOldFocus !== null ) { _fnRemoveFocus( _nOldFocus ); } / Add the new class to highlight the focused cell / $(nTarget).addClass( _sFocusClass ); $(nTarget).parent().addClass( _sFocusClass ); / If it's a DataTable then we need to jump the paging to the relevant page / var oSettings; if ( _oDatatable ) { oSettings = _oDatatable; var iRow = _fnFindDtCell( nTarget )[1]; var bKeyCaptureCache = _bKeyCapture; / Page forwards / while ( iRow >= oSettings.fnDisplayEnd() ) { if ( oSettings._iDisplayLength >= 0 ) { / Make sure we are not over running the display array / if ( oSettings._iDisplayStart + oSettings._iDisplayLength < oSettings.fnRecordsDisplay() ) { oSettings._iDisplayStart += oSettings._iDisplayLength; } } else { oSettings._iDisplayStart = 0; } _oDatatable.oApi._fnCalculateEnd( oSettings ); } / Page backwards / while ( iRow < oSettings._iDisplayStart ) { oSettings._iDisplayStart = oSettings._iDisplayLength>=0 ? oSettings._iDisplayStart - oSettings._iDisplayLength : 0; if ( oSettings._iDisplayStart < 0 ) { oSettings._iDisplayStart = 0; } _oDatatable.oApi._fnCalculateEnd( oSettings ); } / Re-draw the table / _oDatatable.oApi._fnDraw( oSettings ); / Restore the key capture / _bKeyCapture = bKeyCaptureCache; } / Cache the information that we are interested in / var aNewPos = _fnCoordsFromCell( nTarget ); _nOldFocus = nTarget; _iOldX = aNewPos[0]; _iOldY = aNewPos[1]; var iViewportHeight, iViewportWidth, iScrollTop, iScrollLeft, iHeight, iWidth, aiPos; if ( bAutoScroll ) { / Scroll the viewport such that the new cell is fully visible in the rendered window / iViewportHeight = $(window).height(); iViewportWidth = $(window).width(); iScrollTop = $(document).scrollTop(); iScrollLeft = $(document).scrollLeft(); iHeight = nTarget.offsetHeight; iWidth = nTarget.offsetWidth; aiPos = _fnGetPos( nTarget ); / Take account of scrolling in DataTables 1.7 - remove scrolling since that would add to * the positioning calculation / if ( _oDatatable && typeof oSettings.oScroll != 'undefined' && (oSettings.oScroll.sX !== "" \|\| oSettings.oScroll.sY !== "") ) { aiPos[1] -= $(oSettings.nTable.parentNode).scrollTop(); aiPos[0] -= $(oSettings.nTable.parentNode).scrollLeft(); } / Correct viewport positioning for vertical scrolling / if ( aiPos[1]+iHeight > iScrollTop+iViewportHeight ) { / Displayed element if off the bottom of the viewport / _fnSetScrollTop( aiPos[1]+iHeight - iViewportHeight ); } else if ( aiPos[1] < iScrollTop ) { / Displayed element if off the top of the viewport / _fnSetScrollTop( aiPos[1] ); } / Correct viewport positioning for horizontal scrolling / if ( aiPos[0]+iWidth > iScrollLeft+iViewportWidth ) { / Displayed element is off the bottom of the viewport / _fnSetScrollLeft( aiPos[0]+iWidth - iViewportWidth ); } else if ( aiPos[0] < iScrollLeft ) { / Displayed element if off the Left of the viewport / _fnSetScrollLeft( aiPos[0] ); } } / Take account of scrolling in DataTables 1.7 / if ( _oDatatable && typeof oSettings.oScroll != 'undefined' && (oSettings.oScroll.sX !== "" \|\| oSettings.oScroll.sY !== "") ) { var dtScrollBody = oSettings.nTable.parentNode; iViewportHeight = dtScrollBody.clientHeight; iViewportWidth = dtScrollBody.clientWidth; iScrollTop = dtScrollBody.scrollTop; iScrollLeft = dtScrollBody.scrollLeft; iHeight = nTarget.offsetHeight; iWidth = nTarget.offsetWidth; / Correct for vertical scrolling / if ( nTarget.offsetTop + iHeight > iViewportHeight+iScrollTop ) { dtScrollBody.scrollTop = (nTarget.offsetTop + iHeight) - iViewportHeight; } else if ( nTarget.offsetTop < iScrollTop ) { dtScrollBody.scrollTop = nTarget.offsetTop; } / Correct for horizontal scrolling / if ( nTarget.offsetLeft + iWidth > iViewportWidth+iScrollLeft ) { dtScrollBody.scrollLeft = (nTarget.offsetLeft + iWidth) - iViewportWidth; } else if ( nTarget.offsetLeft < iScrollLeft ) { dtScrollBody.scrollLeft = nTarget.offsetLeft; } } / Focused - so we want to capture the keys / _fnCaptureKeys(); / Fire of the focus event if there is one / _fnEventFire( "focus", _iOldX, _iOldY ); } / * Function: _fnBlur * Purpose: Blur focus from the whole table * Returns: - * Inputs: - / function _fnBlur() { _fnRemoveFocus( _nOldFocus ); _iOldX = null; _iOldY = null; _nOldFocus = null; _fnReleaseKeys(); } / * Function: _fnRemoveFocus * Purpose: Remove focus from a cell and fire any blur events which are attached * Returns: - * Inputs: node:nTarget - cell of interest / function _fnRemoveFocus( nTarget ) { $(nTarget).removeClass( _sFocusClass ); $(nTarget).parent().removeClass( _sFocusClass ); _fnEventFire( "blur", _iOldX, _iOldY ); } / * Function: _fnClick * Purpose: Focus on the element that has been clicked on by the user * Returns: - * Inputs: event:e - click event / function _fnClick ( e ) { var nTarget = this; while ( nTarget.nodeName != "TD" ) { nTarget = nTarget.parentNode; } _fnSetFocus( nTarget ); _fnCaptureKeys(); } / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Key events / / * Function: _fnKey * Purpose: Deal with a key events, be it moving the focus or return etc. * Returns: bool: - allow browser default action * Inputs: event:e - key event / function _fnKey ( e ) { / If user or system has blocked KeyTable from doing anything, just ignore this event / if ( _that.block \|\| !_bKeyCapture ) { return true; } / If a modifier key is pressed (exapct shift), ignore the event / if ( e.metaKey \|\| e.altKey \|\| e.ctrlKey ) { return true; } var x, y, iTableWidth = _nBody.getElementsByTagName('tr')[0].getElementsByTagName('td').length, iTableHeight; / Get table height and width - done here so as to be dynamic (if table is updated) / if ( _oDatatable ) { / * Locate the current node in the DataTable overriding the old positions - the reason for * is is that there might have been some DataTables interaction between the last focus and * now / iTableHeight = _oDatatable.aiDisplay.length; var aDtPos = _fnFindDtCell( _nOldFocus ); if ( aDtPos === null ) { / If the table has been updated such that the focused cell can't be seen - do nothing / return; } _iOldX = aDtPos[ 0 ]; _iOldY = aDtPos[ 1 ]; } else { iTableHeight = _nBody.getElementsByTagName('tr').length; } / Capture shift+tab to match the left arrow key / var iKey = (e.keyCode == 9 && e.shiftKey) ? -1 : e.keyCode; switch( iKey ) { case 13: / return / e.preventDefault(); e.stopPropagation(); _fnEventFire( "action", _iOldX, _iOldY ); return true; case 27: / esc / if ( !_fnEventFire( "esc", _iOldX, _iOldY ) ) { / Only lose focus if there isn't an escape handler on the cell / _fnBlur(); return; } x = _iOldX; y = _iOldY; break; case -1: case 37: / left arrow / if ( _iOldX > 0 ) { x = _iOldX - 1; y = _iOldY; } else if ( _iOldY > 0 ) { x = iTableWidth-1; y = _iOldY - 1; } else { / at start of table / if ( iKey == -1 && _bForm ) { / If we are in a form, return focus to the 'input' element such that tabbing will * follow correctly in the browser / _bInputFocused = true; _nInput.focus(); / This timeout is a little nasty - but IE appears to have some asyhnc behaviour for * focus / setTimeout( function(){ _bInputFocused = false; }, 0 ); _bKeyCapture = false; _fnBlur(); return true; } else { return false; } } break; case 38: / up arrow / if ( _iOldY > 0 ) { x = _iOldX; y = _iOldY - 1; } else { return false; } break; case 36: / home / x = _iOldX; y = 0; break; case 33: / page up / x = _iOldX; y = _iOldY - 10; if (y < 0) { y = 0; } break; case 9: / tab / case 39: / right arrow / if ( _iOldX < iTableWidth-1 ) { x = _iOldX + 1; y = _iOldY; } else if ( _iOldY < iTableHeight-1 ) { x = 0; y = _iOldY + 1; } else { / at end of table / if ( iKey == 9 && _bForm ) { / If we are in a form, return focus to the 'input' element such that tabbing will * follow correctly in the browser / _bInputFocused = true; _nInput.focus(); / This timeout is a little nasty - but IE appears to have some asyhnc behaviour for * focus / setTimeout( function(){ _bInputFocused = false; }, 0 ); _bKeyCapture = false; _fnBlur(); return true; } else { return false; } } break; case 40: / down arrow / if ( _iOldY < iTableHeight-1 ) { x = _iOldX; y = _iOldY + 1; } else { return false; } break; case 35: / end / x = _iOldX; y = iTableHeight-1; break; case 34: / page down / x = _iOldX; y = _iOldY+10; if (y > iTableHeight-1) { y = iTableHeight-1; } break; default: / Nothing we are interested in / return true; } _fnSetFocus( _fnCellFromCoords(x, y) ); return false; } / * Function: _fnCaptureKeys * Purpose: Start capturing key events for this table * Returns: - * Inputs: - / function _fnCaptureKeys( ) { if ( !_bKeyCapture ) { _bKeyCapture = true; } } / * Function: _fnReleaseKeys * Purpose: Stop capturing key events for this table * Returns: - * Inputs: - / function _fnReleaseKeys( ) { _bKeyCapture = false; } / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Support functions / / * Function: _fnCellFromCoords * Purpose: Calulate the target TD cell from x and y coordinates * Returns: node: - TD target * Inputs: int:x - x coordinate * int:y - y coordinate / function _fnCellFromCoords( x, y ) { if ( _oDatatable ) { if ( typeof _oDatatable.aoData[ _oDatatable.aiDisplay[ y ] ] != 'undefined' ) { return _oDatatable.aoData[ _oDatatable.aiDisplay[ y ] ].nTr.getElementsByTagName('td')[x]; } else { return null; } } else { return $('tr:eq('+y+')>td:eq('+x+')', _nBody )[0]; } } / * Function: _fnCoordsFromCell * Purpose: Calculate the x and y position in a table from a TD cell * Returns: array[2] int: [x, y] * Inputs: node:n - TD cell of interest * Notes: Not actually interested in this for DataTables since it might go out of date / function _fnCoordsFromCell( n ) { if ( _oDatatable ) { return [ $('td', n.parentNode).index(n), $('tr', n.parentNode.parentNode).index(n.parentNode) + _oDatatable._iDisplayStart ]; } else { return [ $('td', n.parentNode).index(n), $('tr', n.parentNode.parentNode).index(n.parentNode) ]; } } / * Function: _fnSetScrollTop * Purpose: Set the vertical scrolling position * Returns: - * Inputs: int:iPos - scrolltop * Notes: This is so nasty, but without browser detection you can't tell which you should set * So on browsers that support both, the scroll top will be set twice. I can live with * that :-) / function _fnSetScrollTop( iPos ) { document.documentElement.scrollTop = iPos; document.body.scrollTop = iPos; } / * Function: _fnSetScrollLeft * Purpose: Set the horizontal scrolling position * Returns: - * Inputs: int:iPos - scrollleft / function _fnSetScrollLeft( iPos ) { document.documentElement.scrollLeft = iPos; document.body.scrollLeft = iPos; } / * Function: _fnGetPos * Purpose: Get the position of an object on the rendered page * Returns: array[2] int: [left, right] * Inputs: node:obj - element of interest / function _fnGetPos ( obj ) { var iLeft = 0; var iTop = 0; if (obj.offsetParent) { iLeft = obj.offsetLeft; iTop = obj.offsetTop; obj = obj.offsetParent; while (obj) { iLeft += obj.offsetLeft; iTop += obj.offsetTop; obj = obj.offsetParent; } } return [iLeft,iTop]; } / * Function: _fnFindDtCell * Purpose: Get the coords. of a cell from the DataTables internal information * Returns: array[2] int: [x, y] coords. or null if not found * Inputs: node:nTarget - the node of interest / function _fnFindDtCell( nTarget ) { for ( var i=0, iLen=_oDatatable.aiDisplay.length ; i<iLen ; i++ ) { var nTr = _oDatatable.aoData[ _oDatatable.aiDisplay[i] ].nTr; var nTds = nTr.getElementsByTagName('td'); for ( var j=0, jLen=nTds.length ; j<jLen ; j++ ) { if ( nTds[j] == nTarget ) { return [ j, i ]; } } } return null; } / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Initialisation / / * Function: _fnInit * Purpose: Initialise the KeyTable * Returns: - * Inputs: object:oInit - optional - Initalisation object with the following parameters: * array[2] int:focus - x and y coordinates of the initial target * or * node:focus - the node to set initial focus on * node:table - the table to use, if not given, first table with class 'KeyTable' will be used * string:focusClass - focusing class to give to table elements * object:that - focus * bool:initScroll - scroll the view port on load, default true * int:tabIndex - the tab index to give the hidden input element / function _fnInit( table, datatable, oInit, that ) { / Save scope / _that = that; / Capture undefined initialisation and apply the defaults / if ( typeof oInit == 'undefined' ) { oInit = {}; } if ( typeof oInit.focus == 'undefined' ) { oInit.focus = [0,0]; } oInit.table = table; $(oInit.table).addClass('KeyTable'); if ( typeof oInit.focusClass != 'undefined' ) { _sFocusClass = oInit.focusClass; } if ( typeof datatable != 'undefined' ) { _oDatatable = datatable; } if ( typeof oInit.initScroll == 'undefined' ) { oInit.initScroll = true; } if ( typeof oInit.form == 'undefined' ) { oInit.form = false; } _bForm = oInit.form; / Cache the tbody node of interest / _nBody = oInit.table.getElementsByTagName('tbody')[0]; / If the table is inside a form, then we need a hidden input box which can be used by the * browser to catch the browser tabbing for our table / if ( _bForm ) { var nDiv = document.createElement('div'); _nInput = document.createElement('input'); nDiv.style.height = "1px"; / Opera requires a little something / nDiv.style.width = "0px"; nDiv.style.overflow = "hidden"; if ( typeof oInit.tabIndex != 'undefined' ) { _nInput.tabIndex = oInit.tabIndex; } nDiv.appendChild(_nInput); oInit.table.parentNode.insertBefore( nDiv, oInit.table.nextSibling ); $(_nInput).focus( function () { / See if we want to 'tab into' the table or out / if ( !_bInputFocused ) { _bKeyCapture = true; _bInputFocused = false; if ( typeof oInit.focus.nodeName != "undefined" ) { _fnSetFocus( oInit.focus, oInit.initScroll ); } else { _fnSetFocus( _fnCellFromCoords( oInit.focus[0], oInit.focus[1]), oInit.initScroll ); } / Need to interup the thread for this to work / setTimeout( function() { _nInput.blur(); }, 0 ); } } ); _bKeyCapture = false; } else { / Set the initial focus on the table / if ( typeof oInit.focus.nodeName != "undefined" ) { _fnSetFocus( oInit.focus, oInit.initScroll ); } else { _fnSetFocus( _fnCellFromCoords( oInit.focus[0], oInit.focus[1]), oInit.initScroll ); } _fnCaptureKeys(); } / Add event listeners / $(document).bind( "keydown", _fnKey ); if ( _oDatatable ) { $(_oDatatable.nTable).on( 'click', 'td', _fnClick ); } else { $(_nBody).on( 'click', 'td', _fnClick ); } / Loose table focus when click outside the table / $(document).click( function(e) { var nTarget = e.target; var bTableClick = false; while ( nTarget ) { if ( nTarget == oInit.table ) { bTableClick = true; break; } nTarget = nTarget.parentNode; } if ( !bTableClick ) { _fnBlur(); } } ); } var table, datatable; if ( oInit === undefined ) { table = $('table.KeyTable')[0]; datatable = null; } else if ( $.isPlainObject( oInit ) ) { table = oInit.table; datatable = oInit.datatable; } else { datatable = new $.fn.dataTable.Api( oInit ).settings()[0]; table = datatable.nTable; } / Initialise our new object */ _fnInit( table, datatable, oInit, this ); }; KeyTable.version = "1.2.1"; $.fn.dataTable.KeyTable = KeyTable; $.fn.DataTable.KeyTable = KeyTable; return KeyTable; }; // /factory // Define as an AMD module if possible if ( typeof define === 'function' && define.amd ) { define( ['jquery', 'datatables'], factory ); } else if ( typeof exports === 'object' ) { // Node/CommonJS factory( require('jquery'), require('datatables') ); } else if ( jQuery && !jQuery.fn.dataTable.KeyTable ) { // Otherwise simply initialise as normal, stopping multiple evaluation factory( jQuery, jQuery.fn.dataTable ); } })(window, document);

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