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/* |
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* Variable: oPagination |
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* Purpose: |
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* Scope: jQuery.fn.dataTableExt |
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*/ |
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$.extend( DataTable.ext.oPagination, { |
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/* |
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* Variable: two_button |
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* Purpose: Standard two button (forward/back) pagination |
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* Scope: jQuery.fn.dataTableExt.oPagination |
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*/ |
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"two_button": { |
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/* |
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* Function: oPagination.two_button.fnInit |
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* Purpose: Initialise dom elements required for pagination with forward/back buttons only |
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* Returns: - |
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* Inputs: object:oSettings - dataTables settings object |
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* node:nPaging - the DIV which contains this pagination control |
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* function:fnCallbackDraw - draw function which must be called on update |
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*/ |
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"fnInit": function ( oSettings, nPaging, fnCallbackDraw ) |
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{ |
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var oLang = oSettings.oLanguage.oPaginate; |
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var oClasses = oSettings.oClasses; |
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var fnClickHandler = function ( e ) { |
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if ( oSettings.oApi._fnPageChange( oSettings, e.data.action ) ) |
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{ |
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fnCallbackDraw( oSettings ); |
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} |
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}; |
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|
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var sAppend = (!oSettings.bJUI) ? |
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'<a class="'+oSettings.oClasses.sPagePrevDisabled+'" tabindex="'+oSettings.iTabIndex+'" role="button">'+oLang.sPrevious+'</a>'+ |
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'<a class="'+oSettings.oClasses.sPageNextDisabled+'" tabindex="'+oSettings.iTabIndex+'" role="button">'+oLang.sNext+'</a>' |
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: |
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'<a class="'+oSettings.oClasses.sPagePrevDisabled+'" tabindex="'+oSettings.iTabIndex+'" role="button"><span class="'+oSettings.oClasses.sPageJUIPrev+'"></span></a>'+ |
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'<a class="'+oSettings.oClasses.sPageNextDisabled+'" tabindex="'+oSettings.iTabIndex+'" role="button"><span class="'+oSettings.oClasses.sPageJUINext+'"></span></a>'; |
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$(nPaging).append( sAppend ); |
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|
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var els = $('a', nPaging); |
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var nPrevious = els[0], |
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nNext = els[1]; |
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|
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oSettings.oApi._fnBindAction( nPrevious, {action: "previous"}, fnClickHandler ); |
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oSettings.oApi._fnBindAction( nNext, {action: "next"}, fnClickHandler ); |
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|
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/* ID the first elements only */ |
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if ( !oSettings.aanFeatures.p ) |
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{ |
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nPaging.id = oSettings.sTableId+'_paginate'; |
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nPrevious.id = oSettings.sTableId+'_previous'; |
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nNext.id = oSettings.sTableId+'_next'; |
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|
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nPrevious.setAttribute('aria-controls', oSettings.sTableId); |
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nNext.setAttribute('aria-controls', oSettings.sTableId); |
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} |
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}, |
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|
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/* |
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* Function: oPagination.two_button.fnUpdate |
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* Purpose: Update the two button pagination at the end of the draw |
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* Returns: - |
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* Inputs: object:oSettings - dataTables settings object |
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* function:fnCallbackDraw - draw function to call on page change |
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*/ |
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"fnUpdate": function ( oSettings, fnCallbackDraw ) |
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{ |
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if ( !oSettings.aanFeatures.p ) |
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{ |
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return; |
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} |
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|
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var oClasses = oSettings.oClasses; |
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var an = oSettings.aanFeatures.p; |
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var nNode; |
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|
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/* Loop over each instance of the pager */ |
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for ( var i=0, iLen=an.length ; i<iLen ; i++ ) |
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{ |
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nNode = an[i].firstChild; |
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if ( nNode ) |
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{ |
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/* Previous page */ |
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nNode.className = ( oSettings._iDisplayStart === 0 ) ? |
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oClasses.sPagePrevDisabled : oClasses.sPagePrevEnabled; |
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|
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/* Next page */ |
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nNode = nNode.nextSibling; |
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nNode.className = ( oSettings.fnDisplayEnd() == oSettings.fnRecordsDisplay() ) ? |
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oClasses.sPageNextDisabled : oClasses.sPageNextEnabled; |
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} |
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} |
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} |
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}, |
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|
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|
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/* |
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* Variable: iFullNumbersShowPages |
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* Purpose: Change the number of pages which can be seen |
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* Scope: jQuery.fn.dataTableExt.oPagination |
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*/ |
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"iFullNumbersShowPages": 5, |
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|
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/* |
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* Variable: full_numbers |
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* Purpose: Full numbers pagination |
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* Scope: jQuery.fn.dataTableExt.oPagination |
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*/ |
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"full_numbers": { |
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/* |
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* Function: oPagination.full_numbers.fnInit |
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* Purpose: Initialise dom elements required for pagination with a list of the pages |
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* Returns: - |
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* Inputs: object:oSettings - dataTables settings object |
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* node:nPaging - the DIV which contains this pagination control |
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* function:fnCallbackDraw - draw function which must be called on update |
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*/ |
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"fnInit": function ( oSettings, nPaging, fnCallbackDraw ) |
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{ |
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var oLang = oSettings.oLanguage.oPaginate; |
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var oClasses = oSettings.oClasses; |
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var fnClickHandler = function ( e ) { |
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if ( oSettings.oApi._fnPageChange( oSettings, e.data.action ) ) |
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{ |
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fnCallbackDraw( oSettings ); |
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} |
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}; |
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|
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$(nPaging).append( |
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'<a tabindex="'+oSettings.iTabIndex+'" class="'+oClasses.sPageButton+" "+oClasses.sPageFirst+'">'+oLang.sFirst+'</a>'+ |
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'<a tabindex="'+oSettings.iTabIndex+'" class="'+oClasses.sPageButton+" "+oClasses.sPagePrevious+'">'+oLang.sPrevious+'</a>'+ |
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'<span></span>'+ |
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'<a tabindex="'+oSettings.iTabIndex+'" class="'+oClasses.sPageButton+" "+oClasses.sPageNext+'">'+oLang.sNext+'</a>'+ |
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'<a tabindex="'+oSettings.iTabIndex+'" class="'+oClasses.sPageButton+" "+oClasses.sPageLast+'">'+oLang.sLast+'</a>' |
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); |
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var els = $('a', nPaging); |
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var nFirst = els[0], |
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nPrev = els[1], |
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nNext = els[2], |
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nLast = els[3]; |
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|
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oSettings.oApi._fnBindAction( nFirst, {action: "first"}, fnClickHandler ); |
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oSettings.oApi._fnBindAction( nPrev, {action: "previous"}, fnClickHandler ); |
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oSettings.oApi._fnBindAction( nNext, {action: "next"}, fnClickHandler ); |
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oSettings.oApi._fnBindAction( nLast, {action: "last"}, fnClickHandler ); |
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|
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/* ID the first elements only */ |
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if ( !oSettings.aanFeatures.p ) |
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{ |
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nPaging.id = oSettings.sTableId+'_paginate'; |
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nFirst.id =oSettings.sTableId+'_first'; |
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nPrev.id =oSettings.sTableId+'_previous'; |
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nNext.id =oSettings.sTableId+'_next'; |
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nLast.id =oSettings.sTableId+'_last'; |
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} |
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}, |
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|
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/* |
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* Function: oPagination.full_numbers.fnUpdate |
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* Purpose: Update the list of page buttons shows |
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* Returns: - |
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* Inputs: object:oSettings - dataTables settings object |
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* function:fnCallbackDraw - draw function to call on page change |
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*/ |
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"fnUpdate": function ( oSettings, fnCallbackDraw ) |
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{ |
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if ( !oSettings.aanFeatures.p ) |
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{ |
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return; |
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} |
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|
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var iPageCount = DataTable.ext.oPagination.iFullNumbersShowPages; |
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var iPageCountHalf = Math.floor(iPageCount / 2); |
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var iPages = Math.ceil((oSettings.fnRecordsDisplay()) / oSettings._iDisplayLength); |
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var iCurrentPage = Math.ceil(oSettings._iDisplayStart / oSettings._iDisplayLength) + 1; |
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var sList = ""; |
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var iStartButton, iEndButton, i, iLen; |
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var oClasses = oSettings.oClasses; |
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var anButtons, anStatic, nPaginateList, nNode; |
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var an = oSettings.aanFeatures.p; |
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var fnBind = function (j) { |
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oSettings.oApi._fnBindAction( this, {"page": j+iStartButton-1}, function(e) { |
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/* Use the information in the element to jump to the required page */ |
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oSettings.oApi._fnPageChange( oSettings, e.data.page ); |
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fnCallbackDraw( oSettings ); |
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e.preventDefault(); |
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} ); |
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}; |
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|
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/* Pages calculation */ |
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if ( oSettings._iDisplayLength === -1 ) |
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{ |
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iStartButton = 1; |
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iEndButton = 1; |
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iCurrentPage = 1; |
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} |
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else if (iPages < iPageCount) |
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{ |
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iStartButton = 1; |
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iEndButton = iPages; |
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} |
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else if (iCurrentPage <= iPageCountHalf) |
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{ |
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iStartButton = 1; |
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iEndButton = iPageCount; |
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} |
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else if (iCurrentPage >= (iPages - iPageCountHalf)) |
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{ |
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iStartButton = iPages - iPageCount + 1; |
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iEndButton = iPages; |
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} |
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else |
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{ |
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iStartButton = iCurrentPage - Math.ceil(iPageCount / 2) + 1; |
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iEndButton = iStartButton + iPageCount - 1; |
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} |
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|
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|
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/* Build the dynamic list */ |
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for ( i=iStartButton ; i<=iEndButton ; i++ ) |
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{ |
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sList += (iCurrentPage !== i) ? |
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'<a tabindex="'+oSettings.iTabIndex+'" class="'+oClasses.sPageButton+'">'+oSettings.fnFormatNumber(i)+'</a>' : |
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'<a tabindex="'+oSettings.iTabIndex+'" class="'+oClasses.sPageButtonActive+'">'+oSettings.fnFormatNumber(i)+'</a>'; |
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} |
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|
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/* Loop over each instance of the pager */ |
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for ( i=0, iLen=an.length ; i<iLen ; i++ ) |
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{ |
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nNode = an[i]; |
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if ( !nNode.hasChildNodes() ) |
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{ |
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continue; |
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} |
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|
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/* Build up the dynamic list first - html and listeners */ |
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$('span:eq(0)', nNode) |
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.html( sList ) |
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.children('a').each( fnBind ); |
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|
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/* Update the permanent button's classes */ |
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anButtons = nNode.getElementsByTagName('a'); |
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anStatic = [ |
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anButtons[0], anButtons[1], |
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anButtons[anButtons.length-2], anButtons[anButtons.length-1] |
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]; |
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|
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$(anStatic).removeClass( oClasses.sPageButton+" "+oClasses.sPageButtonActive+" "+oClasses.sPageButtonStaticDisabled ); |
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$([anStatic[0], anStatic[1]]).addClass( |
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(iCurrentPage==1) ? |
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oClasses.sPageButtonStaticDisabled : |
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oClasses.sPageButton |
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); |
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$([anStatic[2], anStatic[3]]).addClass( |
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(iPages===0 || iCurrentPage===iPages || oSettings._iDisplayLength===-1) ? |
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oClasses.sPageButtonStaticDisabled : |
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oClasses.sPageButton |
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); |
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} |
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} |
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} |
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} ); |
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