--- /dev/null
+/*! 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);
Code Review / stor4nfv.git / blobdiff