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426 lines
16 KiB
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<title data-ice="title">src/modules/dropdown.js | TableFilter v0.0.0 API Document</title>
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</nav>
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<div class="content" data-ice="content"><h1 data-ice="title">src/modules/dropdown.js</h1>
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<pre class="source-code line-number"><code class="prettyprint linenums" data-ice="content">import Dom from '../dom';
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import Arr from '../array';
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import Str from '../string';
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import Sort from '../sort';
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export class Dropdown{
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/**
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* Dropdown UI component
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* @param {Object} tf TableFilter instance
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*/
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constructor(tf){
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// Configuration object
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var f = tf.config();
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this.enableSlcResetFilter = f.enable_slc_reset_filter===false ?
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false : true;
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//defines empty option text
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this.nonEmptyText = f.non_empty_text || '(Non empty)';
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//sets select filling method: 'innerHTML' or 'createElement'
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this.slcFillingMethod = f.slc_filling_method || 'createElement';
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//IE only, tooltip text appearing on select before it is populated
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this.activateSlcTooltip = f.activate_slc_tooltip ||
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'Click to activate';
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//tooltip text appearing on multiple select
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this.multipleSlcTooltip = f.multiple_slc_tooltip ||
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'Use Ctrl key for multiple selections';
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this.isCustom = null;
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this.opts = null;
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this.optsTxt = null;
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this.slcInnerHtml = null;
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this.tf = tf;
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}
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/**
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* Build drop-down filter UI asynchronously
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* @param {Number} colIndex Column index
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* @param {Boolean} isLinked Enable linked refresh behaviour
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* @param {Boolean} isExternal Render in external container
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* @param {String} extSlcId External container id
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*/
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build(colIndex, isLinked, isExternal, extSlcId){
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var tf = this.tf;
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tf.EvtManager(
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tf.Evt.name.dropdown,
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{
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slcIndex: colIndex,
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slcRefreshed: isLinked,
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slcExternal: isExternal,
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slcId: extSlcId
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}
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);
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}
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/**
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* Build drop-down filter UI
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* @param {Number} colIndex Column index
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* @param {Boolean} isLinked Enable linked refresh behaviour
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* @param {Boolean} isExternal Render in external container
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* @param {String} extSlcId External container id
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*/
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_build(colIndex, isLinked=false, isExternal=false, extSlcId=null){
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var tf = this.tf;
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colIndex = parseInt(colIndex, 10);
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this.opts = [];
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this.optsTxt = [];
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this.slcInnerHtml = '';
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var slcId = tf.fltIds[colIndex];
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if((!Dom.id(slcId) && !isExternal) ||
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(!Dom.id(extSlcId) && isExternal)){
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return;
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}
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var slc = !isExternal ? Dom.id(slcId) : Dom.id(extSlcId),
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rows = tf.tbl.rows,
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matchCase = tf.matchCase;
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//custom select test
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this.isCustom = tf.isCustomOptions(colIndex);
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//custom selects text
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var activeFlt;
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if(isLinked && tf.activeFilterId){
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activeFlt = tf.activeFilterId.split('_')[0];
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activeFlt = activeFlt.split(tf.prfxFlt)[1];
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}
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/*** remember grid values ***/
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var fltsValues = [], fltArr = [];
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if(tf.rememberGridValues){
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fltsValues =
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tf.feature('store').getFilterValues(tf.fltsValuesCookie);
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if(fltsValues && !Str.isEmpty(fltsValues.toString())){
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if(this.isCustom){
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fltArr.push(fltsValues[colIndex]);
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} else {
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fltArr = fltsValues[colIndex].split(' '+tf.orOperator+' ');
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}
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}
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}
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var excludedOpts = null,
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filteredDataCol = null;
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if(isLinked && tf.disableExcludedOptions){
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excludedOpts = [];
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filteredDataCol = [];
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}
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for(var k=tf.refRow; k<tf.nbRows; k++){
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// always visible rows don't need to appear on selects as always
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// valid
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if(tf.hasVisibleRows && tf.visibleRows.indexOf(k) !== -1){
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continue;
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}
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var cell = rows[k].cells,
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nchilds = cell.length;
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// checks if row has exact cell #
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if(nchilds !== tf.nbCells || this.isCustom){
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continue;
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}
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// this loop retrieves cell data
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for(var j=0; j<nchilds; j++){
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// WTF: cyclomatic complexity hell
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if((colIndex===j &&
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(!isLinked ||
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(isLinked && tf.disableExcludedOptions))) ||
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(colIndex==j && isLinked &&
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((rows[k].style.display === '' && !tf.paging) ||
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(tf.paging && (!tf.validRowsIndex ||
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(tf.validRowsIndex &&
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Arr.has(tf.validRowsIndex, k))) &&
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((activeFlt===undefined || activeFlt==colIndex) ||
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(activeFlt!=colIndex &&
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Arr.has(tf.validRowsIndex, k) ))) ))){
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var cell_data = tf.getCellData(j, cell[j]),
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//Vary Peter's patch
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cell_string = Str.matchCase(cell_data, matchCase);
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// checks if celldata is already in array
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if(!Arr.has(this.opts, cell_string, matchCase)){
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this.opts.push(cell_data);
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}
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if(isLinked && tf.disableExcludedOptions){
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var filteredCol = filteredDataCol[j];
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if(!filteredCol){
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filteredCol = tf.getFilteredDataCol(j);
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}
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if(!Arr.has(filteredCol, cell_string, matchCase) &&
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!Arr.has(
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excludedOpts, cell_string, matchCase) &&
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!this.isFirstLoad){
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excludedOpts.push(cell_data);
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}
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}
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}//if colIndex==j
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}//for j
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}//for k
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//Retrieves custom values
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if(this.isCustom){
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var customValues = tf.getCustomOptions(colIndex);
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this.opts = customValues[0];
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this.optsTxt = customValues[1];
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}
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if(tf.sortSlc && !this.isCustom){
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if (!matchCase){
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this.opts.sort(Sort.ignoreCase);
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if(excludedOpts){
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excludedOpts.sort(Sort.ignoreCase);
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}
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} else {
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this.opts.sort();
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if(excludedOpts){ excludedOpts.sort(); }
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}
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}
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//asc sort
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if(tf.sortNumAsc && Arr.has(tf.sortNumAsc, colIndex)){
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try{
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this.opts.sort( numSortAsc );
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if(excludedOpts){
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excludedOpts.sort(numSortAsc);
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}
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if(this.isCustom){
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this.optsTxt.sort(numSortAsc);
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}
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} catch(e) {
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this.opts.sort();
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if(excludedOpts){
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excludedOpts.sort();
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}
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if(this.isCustom){
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this.optsTxt.sort();
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}
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}//in case there are alphanumeric values
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}
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//desc sort
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if(tf.sortNumDesc && Arr.has(tf.sortNumDesc, colIndex)){
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try{
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this.opts.sort(numSortDesc);
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if(excludedOpts){
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excludedOpts.sort(numSortDesc);
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}
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if(this.isCustom){
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this.optsTxt.sort(numSortDesc);
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}
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} catch(e) {
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this.opts.sort();
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if(excludedOpts){
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excludedOpts.sort();
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}
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if(this.isCustom){
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this.optsTxt.sort();
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}
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}//in case there are alphanumeric values
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}
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//populates drop-down
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this.addOptions(
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colIndex, slc, isLinked, excludedOpts, fltsValues, fltArr);
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}
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/**
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* Add drop-down options
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* @param {Number} colIndex Column index
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* @param {Object} slc Select Dom element
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* @param {Boolean} isLinked Enable linked refresh behaviour
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* @param {Array} excludedOpts Array of excluded options
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* @param {Array} fltsValues Collection of persisted filter values
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* @param {Array} fltArr Collection of persisted filter values
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*/
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addOptions(colIndex, slc, isLinked, excludedOpts, fltsValues, fltArr){
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var tf = this.tf,
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fillMethod = Str.lower(this.slcFillingMethod),
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slcValue = slc.value;
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slc.innerHTML = '';
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slc = this.addFirstOption(slc);
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for(var y=0; y<this.opts.length; y++){
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if(this.opts[y]===''){
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continue;
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}
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var val = this.opts[y]; //option value
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var lbl = this.isCustom ? this.optsTxt[y] : val; //option text
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var isDisabled = false;
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if(isLinked && tf.disableExcludedOptions &&
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Arr.has(
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excludedOpts,
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Str.matchCase(val, tf.matchCase),
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tf.matchCase
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)){
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isDisabled = true;
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}
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if(fillMethod === 'innerhtml'){
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var slcAttr = '';
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if(tf.fillSlcOnDemand && slcValue===this.opts[y]){
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slcAttr = 'selected="selected"';
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}
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this.slcInnerHtml += '<option value="'+val+'" ' + slcAttr +
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(isDisabled ? 'disabled="disabled"' : '')+ '>' +
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lbl+'</option>';
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} else {
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var opt;
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//fill select on demand
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if(tf.fillSlcOnDemand && slcValue===this.opts[y] &&
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tf['col'+colIndex]===tf.fltTypeSlc){
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opt = Dom.createOpt(lbl, val, true);
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} else {
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if(tf['col'+colIndex]!==tf.fltTypeMulti){
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opt = Dom.createOpt(
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lbl,
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val,
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(fltsValues[colIndex]!==' ' &&
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val===fltsValues[colIndex]) ? true : false
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);
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} else {
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opt = Dom.createOpt(
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lbl,
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val,
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(Arr.has(fltArr,
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Str.matchCase(this.opts[y], tf.matchCase),
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tf.matchCase) ||
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fltArr.toString().indexOf(val)!== -1) ?
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true : false
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);
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}
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}
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if(isDisabled){
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opt.disabled = true;
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}
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slc.appendChild(opt);
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}
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}// for y
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if(fillMethod === 'innerhtml'){
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slc.innerHTML += this.slcInnerHtml;
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}
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slc.setAttribute('filled', '1');
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}
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/**
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* Add drop-down header option
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* @param {Object} slc Select DOM element
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*/
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addFirstOption(slc){
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var tf = this.tf,
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fillMethod = Str.lower(this.slcFillingMethod);
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if(fillMethod === 'innerhtml'){
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this.slcInnerHtml += '<option value="">'+ tf.displayAllText +
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'</option>';
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}
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else {
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var opt0 = Dom.createOpt(
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(!this.enableSlcResetFilter ? '' : tf.displayAllText),'');
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if(!this.enableSlcResetFilter){
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opt0.style.display = 'none';
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}
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slc.appendChild(opt0);
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if(tf.enableEmptyOption){
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var opt1 = Dom.createOpt(tf.emptyText, tf.emOperator);
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slc.appendChild(opt1);
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}
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if(tf.enableNonEmptyOption){
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var opt2 = Dom.createOpt(tf.nonEmptyText, tf.nmOperator);
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slc.appendChild(opt2);
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}
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}
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return slc;
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}
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}
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</code></pre>
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</div>
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<script src="script/pretty-print.js"></script>
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<script src="script/inherited-summary.js"></script>
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<script src="script/test-summary.js"></script>
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