TableFilter/src/modules/paging.js.map

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{Dom} from '../dom';\nimport {Helpers} from '../helpers';\n\nexport class Paging{\n    \n    /**\n     * Pagination component\n     * @param {Object} tf TableFilter instance\n     */\n    constructor(tf){\n        // TableFilter configuration\n        var f = tf.fObj;\n        \n        //id of container element\n        this.pagingTgtId = f.paging_target_id || null;\n        //defines table paging length\n        this.pagingLength = !isNaN(f.paging_length) ? f.paging_length : 10;\n        //id of container element\n        this.resultsPerPageTgtId = f.results_per_page_target_id || null;\n        //css class for paging select element\n        this.pgSlcCssClass = f.paging_slc_css_class || 'pgSlc';\n        //css class for paging input element\n        this.pgInpCssClass = f.paging_inp_css_class || 'pgNbInp';\n        //defines css class for results per page select\n        this.resultsSlcCssClass = f.results_slc_css_class || 'rspg';\n        //css class for label preceding results per page select\n        this.resultsSpanCssClass = f.results_span_css_class || 'rspgSpan';\n        //nb visible rows\n        this.nbVisibleRows = 0;\n        //nb hidden rows\n        this.nbHiddenRows = 0;\n        //1st row index of current page\n        this.startPagingRow = 0;\n        //total nb of pages\n        this.nbPages = 0;\n        //defines next page button text\n        this.btnNextPageText = f.btn_next_page_text || '>';\n        //defines previous page button text\n        this.btnPrevPageText = f.btn_prev_page_text || '<';\n        //defines last page button text\n        this.btnLastPageText = f.btn_last_page_text || '>|';\n        //defines first page button text\n        this.btnFirstPageText = f.btn_first_page_text || '|<';\n        //defines next page button html\n        this.btnNextPageHtml = f.btn_next_page_html ||\n            (!this.enableIcons ? null :\n            '<input type=\"button\" value=\"\" class=\"'+this.btnPageCssClass +\n            ' nextPage\" title=\"Next page\" />');\n        //defines previous page button html\n        this.btnPrevPageHtml = f.btn_prev_page_html ||\n            (!this.enableIcons ? null :\n            '<input type=\"button\" value=\"\" class=\"'+this.btnPageCssClass +\n            ' previousPage\" title=\"Previous page\" />');\n        //defines last page button html\n        this.btnFirstPageHtml = f.btn_first_page_html ||\n            (!this.enableIcons ? null :\n            '<input type=\"button\" value=\"\" class=\"'+this.btnPageCssClass +\n            ' firstPage\" title=\"First page\" />');\n        //defines previous page button html\n        this.btnLastPageHtml = f.btn_last_page_html ||\n            (!this.enableIcons ? null :\n            '<input type=\"button\" value=\"\" class=\"'+this.btnPageCssClass +\n            ' lastPage\" title=\"Last page\" />');\n        //defines text preceeding page selector drop-down\n        this.pageText = f.page_text || ' Page ';\n        //defines text after page selector drop-down\n        this.ofText = f.of_text || ' of ';\n        //css class for span containing tot nb of pages\n        this.nbPgSpanCssClass = f.nb_pages_css_class || 'nbpg';\n        //enables/disables paging buttons\n        this.hasPagingBtns = f.paging_btns===false ? false : true;\n        //stores paging buttons events\n        this.pagingBtnEvents = null;\n        //defines previous page button html\n        this.pageSelectorType = f.page_selector_type || this.fltTypeSlc;\n        //calls function before page is changed\n        this.onBeforeChangePage = types.isFn(f.on_before_change_page) ?\n            f.on_before_change_page : null;\n        //calls function before page is changed\n        this.onAfterChangePage = types.isFn(f.on_after_change_page) ?\n            f.on_after_change_page : null;\n        var start_row = this.refRow;\n        var nrows = this.nbRows;\n        //calculates page nb\n        this.nbPages = Math.ceil((nrows-start_row)/this.pagingLength);\n        \n        var evt = tf.Evt;\n        //Paging elements events\n        if(!evt._Paging.next){\n            var o = tf;\n            evt._Paging = {// paging buttons events\n                slcIndex: function(){\n                    return (o.pageSelectorType===o.fltTypeSlc) ?\n                        o.pagingSlc.options.selectedIndex :\n                        parseInt(o.pagingSlc.value,10)-1;\n                },\n                nbOpts: function(){\n                    return (o.pageSelectorType===o.fltTypeSlc) ?\n                        parseInt(o.pagingSlc.options.length,10)-1 :\n                        (o.nbPages-1);\n                },\n                next: function(){\n                    if(o.Evt._Paging.nextEvt){\n                        o.Evt._Paging.nextEvt();\n                    }\n                    var nextIndex =\n                        o.Evt._Paging.slcIndex()<o.Evt._Paging.nbOpts() ?\n                        o.Evt._Paging.slcIndex()+1 : 0;\n                    o.ChangePage(nextIndex);\n                },\n                prev: function(){\n                    if(o.Evt._Paging.prevEvt){\n                        o.Evt._Paging.prevEvt();\n                    }\n                    var prevIndex = o.Evt._Paging.slcIndex()>0 ?\n                        o.Evt._Paging.slcIndex()-1 : o.Evt._Paging.nbOpts();\n                    o.ChangePage(prevIndex);\n                },\n                last: function(){\n                    if(o.Evt._Paging.lastEvt){\n                        o.Evt._Paging.lastEvt();\n                    }\n                    o.ChangePage(o.Evt._Paging.nbOpts());\n                },\n                first: function(){\n                    if(o.Evt._Paging.firstEvt){\n                        o.Evt._Paging.firstEvt();\n                    }\n                    o.ChangePage(0);\n                },\n                _detectKey: function(e){\n                    var evt = e || global.event;\n                    if(evt){\n                        var key = o.Evt.getKeyCode(e);\n                        if(key===13){\n                            if(o.sorted){\n                                o.Filter();\n                                o.ChangePage(o.Evt._Paging.slcIndex());\n                            } else{\n                                o.ChangePage();\n                            }\n                            this.blur();\n                        }\n                    }\n                },\n                nextEvt: null,\n                prevEvt: null,\n                lastEvt: null,\n                firstEvt: null\n            };\n        }        \n        \n        this.tf = tf;\n    }\n    \n    buildUI(){\n        \n        var slcPages;\n        var tf = this.tf;\n        var evt = tf.Evt;\n\n        // Paging drop-down list selector\n        if(this.pageSelectorType === tf.fltTypeSlc){\n            slcPages = dom.create(\n                tf.fltTypeSlc, ['id', tf.prfxSlcPages+tf.id]);\n            slcPages.className = this.pgSlcCssClass;\n            slcPages.onchange = evt._OnSlcPagesChange;\n        }\n\n        // Paging input selector\n        if(this.pageSelectorType === tf.fltTypeInp){\n            slcPages = dom.create(\n                tf.fltTypeInp,\n                ['id', tf.prfxSlcPages+tf.id],\n                ['value', tf.currentPageNb]\n            );\n            slcPages.className = this.pgInpCssClass;\n            slcPages.onkeypress = evt._Paging._detectKey;\n        }\n\n        // btns containers\n        var btnNextSpan = dom.create(\n            'span',['id',this.prfxBtnNextSpan+tf.id]);\n        var btnPrevSpan = dom.create(\n            'span',['id',this.prfxBtnPrevSpan+tf.id]);\n        var btnLastSpan = dom.create(\n            'span',['id',this.prfxBtnLastSpan+tf.id]);\n        var btnFirstSpan = dom.create(\n            'span',['id',this.prfxBtnFirstSpan+tf.id]);\n\n        if(this.hasPagingBtns){\n            // Next button\n            if(!this.btnNextPageHtml){\n                var btn_next = dom.create(\n                    tf.fltTypeInp,['id',tf.prfxBtnNext+tf.id],\n                    ['type','button'],\n                    ['value',this.btnNextPageText],\n                    ['title','Next']\n                );\n                btn_next.className = this.btnPageCssClass;\n                btn_next.onclick = evt._Paging.next;\n                btnNextSpan.appendChild(btn_next);\n            } else {\n                btnNextSpan.innerHTML = this.btnNextPageHtml;\n                btnNextSpan.onclick = evt._Paging.next;\n            }\n            // Previous button\n            if(!this.btnPrevPageHtml){\n                var btn_prev = dom.create(\n                    tf.fltTypeInp,\n                    ['id',tf.prfxBtnPrev+tf.id],\n                    ['type','button'],\n                    ['value',this.btnPrevPageText],\n                    ['title','Previous']\n                );\n                btn_prev.className = this.btnPageCssClass;\n                btn_prev.onclick = evt._Paging.prev;\n                btnPrevSpan.appendChild(btn_prev);\n            } else {\n                btnPrevSpan.innerHTML = this.btnPrevPageHtml;\n                btnPrevSpan.onclick = evt._Paging.prev;\n            }\n            // Last button\n            if(!this.btnLastPageHtml){\n                var btn_last = dom.create(\n                    tf.fltTypeInp,\n                    ['id',tf.prfxBtnLast+tf.id],\n                    ['type','button'],\n                    ['value',this.btnLastPageText],\n                    ['title','Last']\n                );\n                btn_last.className = this.btnPageCssClass;\n                btn_last.onclick = evt._Paging.last;\n                btnLastSpan.appendChild(btn_last);\n            } else {\n                btnLastSpan.innerHTML = this.btnLastPageHtml;\n                btnLastSpan.onclick = evt._Paging.last;\n            }\n            // First button\n            if(!this.btnFirstPageHtml){\n                var btn_first = dom.create(\n                    tf.fltTypeInp,\n                    ['id',tf.prfxBtnFirst+tf.id],\n                    ['type','button'],\n                    ['value',this.btnFirstPageText],\n                    ['title','First']\n                );\n                btn_first.className = this.btnPageCssClass;\n                btn_first.onclick = evt._Paging.first;\n                btnFirstSpan.appendChild(btn_first);\n            } else {\n                btnFirstSpan.innerHTML = this.btnFirstPageHtml;\n                btnFirstSpan.onclick = evt._Paging.first;\n            }\n        }\n\n        // paging elements (buttons+drop-down list) are added to defined element\n        if(!this.pagingTgtId){\n            tf.SetTopDiv();\n        }\n        var targetEl = !this.pagingTgtId ? tf.mDiv : dom.id(this.pagingTgtId);\n\n        /***\n        if paging previously removed this prevents IE memory leak with\n        removeChild used in RemovePaging method. For more info refer to\n        http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2840253&SiteID=1\n        ***/\n        if (targetEl.innerHTML!==''){\n            targetEl.innerHTML = '';\n        }\n        /*** ***/\n\n        targetEl.appendChild(btnFirstSpan);\n        targetEl.appendChild(btnPrevSpan);\n\n        var pgBeforeSpan = dom.create(\n            'span',['id', tf.prfxPgBeforeSpan+tf.id] );\n        pgBeforeSpan.appendChild( dom.text(this.pageText) );\n        pgBeforeSpan.className = this.nbPgSpanCssClass;\n        targetEl.appendChild(pgBeforeSpan);\n        targetEl.appendChild(slcPages);\n        var pgAfterSpan = dom.create(\n            'span',['id', tf.prfxPgAfterSpan+tf.id]);\n        pgAfterSpan.appendChild( dom.text(this.ofText) );\n        pgAfterSpan.className = this.nbPgSpanCssClass;\n        targetEl.appendChild(pgAfterSpan);\n        var pgspan = dom.create( 'span',['id', tf.prfxPgSpan+tf.id] );\n        pgspan.className = this.nbPgSpanCssClass;\n        pgspan.appendChild( dom.text(' '+this.nbPages+' ') );\n        targetEl.appendChild(pgspan);\n        targetEl.appendChild(btnNextSpan);\n        targetEl.appendChild(btnLastSpan);\n        this.pagingSlc = dom.id(tf.prfxSlcPages+tf.id);\n        \n        /*====================================================\n            - onchange event for paging select\n        =====================================================*/\n        if(!evt._OnSlcPagesChange){\n           evt._OnSlcPagesChange = function(){\n                if(evt._Paging._OnSlcPagesChangeEvt){\n                    evt._Paging._OnSlcPagesChangeEvt();\n                }\n                tf.ChangePage();\n                this.blur();\n                //ie only: blur is not enough...\n                if(this.parentNode && Helpers.isIE()){\n                    this.parentNode.focus();\n                }\n            };\n        }\n    }\n}"]}