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440 lines
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HTML
440 lines
17 KiB
HTML
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<title data-ice="title">src/modules/gridLayout.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/gridLayout.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 Types from '../types';
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import Event from '../event';
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export class GridLayout{
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/**
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* Grid layout, table with fixed headers
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* @param {Object} tf TableFilter instance
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*/
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constructor(tf) {
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var f = tf.config();
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//defines grid width
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this.gridWidth = f.grid_width || null;
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//defines grid height
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this.gridHeight = f.grid_height || null;
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//defines css class for main container
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this.gridMainContCssClass = f.grid_cont_css_class || 'grd_Cont';
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//defines css class for div containing table
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this.gridContCssClass = f.grid_tbl_cont_css_class || 'grd_tblCont';
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//defines css class for div containing headers' table
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this.gridHeadContCssClass = f.grid_tblHead_cont_css_class ||
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'grd_headTblCont';
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//defines css class for div containing rows counter, paging etc.
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this.gridInfDivCssClass = f.grid_inf_grid_css_class || 'grd_inf';
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//defines which row contains column headers
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this.gridHeadRowIndex = f.grid_headers_row_index || 0;
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//array of headers row indexes to be placed in header table
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this.gridHeadRows = f.grid_headers_rows || [0];
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//generate filters in table headers
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this.gridEnableFilters = f.grid_enable_default_filters!==undefined ?
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f.grid_enable_default_filters : true;
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//default col width
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this.gridDefaultColWidth = f.grid_default_col_width || '100px';
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//enables/disables columns resizer
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// this.gridEnableColResizer = f.grid_enable_cols_resizer!==undefined ?
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// f.grid_enable_cols_resizer : false;
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// //defines col resizer script path
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// this.gridColResizerPath = f.grid_cont_col_resizer_path ||
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// this.basePath+'TFExt_ColsResizer/TFExt_ColsResizer.js';
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this.gridColElms = [];
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//div containing grid elements if grid_layout true
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this.prfxMainTblCont = 'gridCont_';
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//div containing table if grid_layout true
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this.prfxTblCont = 'tblCont_';
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//div containing headers table if grid_layout true
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this.prfxHeadTblCont = 'tblHeadCont_';
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//headers' table if grid_layout true
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this.prfxHeadTbl = 'tblHead_';
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//id of td containing the filter if grid_layout true
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this.prfxGridFltTd = '_td_';
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//id of th containing column header if grid_layout true
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this.prfxGridTh = 'tblHeadTh_';
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this.tf = tf;
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}
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/**
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* Generates a grid with fixed headers
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*/
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init(){
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var tf = this.tf;
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var f = tf.config();
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var tbl = tf.tbl;
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if(!tf.gridLayout){
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return;
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}
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tf.isExternalFlt = true;
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// default width of 100px if column widths not set
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if(!tf.hasColWidths){
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tf.colWidths = [];
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for(var k=0; k<tf.nbCells; k++){
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var colW,
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cell = tbl.rows[this.gridHeadRowIndex].cells[k];
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if(cell.width !== ''){
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colW = cell.width;
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} else if(cell.style.width !== ''){
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colW = parseInt(cell.style.width, 10);
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} else {
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colW = this.gridDefaultColWidth;
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}
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tf.colWidths[k] = colW;
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}
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tf.hasColWidths = true;
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}
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tf.setColWidths(this.gridHeadRowIndex);
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var tblW;//initial table width
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if(tbl.width !== ''){
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tblW = tbl.width;
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}
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else if(tbl.style.width !== ''){
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tblW = parseInt(tbl.style.width, 10);
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} else {
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tblW = tbl.clientWidth;
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}
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//Main container: it will contain all the elements
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this.tblMainCont = Dom.create('div',
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['id', this.prfxMainTblCont + tf.id]);
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this.tblMainCont.className = this.gridMainContCssClass;
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if(this.gridWidth){
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this.tblMainCont.style.width = this.gridWidth;
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}
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tbl.parentNode.insertBefore(this.tblMainCont, tbl);
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//Table container: div wrapping content table
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this.tblCont = Dom.create('div',['id', this.prfxTblCont + tf.id]);
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this.tblCont.className = this.gridContCssClass;
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if(this.gridWidth){
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if(this.gridWidth.indexOf('%') != -1){
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console.log(this.gridWidth);
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this.tblCont.style.width = '100%';
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} else {
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this.tblCont.style.width = this.gridWidth;
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}
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}
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if(this.gridHeight){
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this.tblCont.style.height = this.gridHeight;
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}
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tbl.parentNode.insertBefore(this.tblCont, tbl);
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var t = tbl.parentNode.removeChild(tbl);
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this.tblCont.appendChild(t);
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//In case table width is expressed in %
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if(tbl.style.width === ''){
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tbl.style.width = (tf._containsStr('%', tblW) ?
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tbl.clientWidth : tblW) + 'px';
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}
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var d = this.tblCont.parentNode.removeChild(this.tblCont);
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this.tblMainCont.appendChild(d);
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//Headers table container: div wrapping headers table
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this.headTblCont = Dom.create(
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'div',['id', this.prfxHeadTblCont + tf.id]);
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this.headTblCont.className = this.gridHeadContCssClass;
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if(this.gridWidth){
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if(this.gridWidth.indexOf('%') != -1){
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console.log(this.gridWidth);
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this.headTblCont.style.width = '100%';
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} else {
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this.headTblCont.style.width = this.gridWidth;
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}
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}
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//Headers table
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this.headTbl = Dom.create('table', ['id', this.prfxHeadTbl + tf.id]);
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var tH = Dom.create('tHead'); //IE<7 needs it
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//1st row should be headers row, ids are added if not set
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//Those ids are used by the sort feature
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var hRow = tbl.rows[this.gridHeadRowIndex];
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var sortTriggers = [];
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for(var n=0; n<tf.nbCells; n++){
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var c = hRow.cells[n];
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var thId = c.getAttribute('id');
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if(!thId || thId===''){
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thId = this.prfxGridTh+n+'_'+tf.id;
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c.setAttribute('id', thId);
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}
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sortTriggers.push(thId);
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}
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//Filters row is created
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var filtersRow = Dom.create('tr');
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if(this.gridEnableFilters && tf.fltGrid){
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tf.externalFltTgtIds = [];
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for(var j=0; j<tf.nbCells; j++){
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var fltTdId = tf.prfxFlt+j+ this.prfxGridFltTd +tf.id;
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var cl = Dom.create(tf.fltCellTag, ['id', fltTdId]);
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filtersRow.appendChild(cl);
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tf.externalFltTgtIds[j] = fltTdId;
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}
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}
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//Headers row are moved from content table to headers table
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for(var i=0; i<this.gridHeadRows.length; i++){
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var headRow = tbl.rows[this.gridHeadRows[0]];
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tH.appendChild(headRow);
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}
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this.headTbl.appendChild(tH);
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if(tf.filtersRowIndex === 0){
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tH.insertBefore(filtersRow,hRow);
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} else {
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tH.appendChild(filtersRow);
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}
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this.headTblCont.appendChild(this.headTbl);
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this.tblCont.parentNode.insertBefore(this.headTblCont, this.tblCont);
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//THead needs to be removed in content table for sort feature
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var thead = Dom.tag(tbl, 'thead');
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if(thead.length>0){
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tbl.removeChild(thead[0]);
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}
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//Headers table style
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this.headTbl.style.tableLayout = 'fixed';
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tbl.style.tableLayout = 'fixed';
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this.headTbl.cellPadding = tbl.cellPadding;
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this.headTbl.cellSpacing = tbl.cellSpacing;
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// this.headTbl.style.width = tbl.style.width;
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//content table without headers needs col widths to be reset
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tf.setColWidths(0, this.headTbl);
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//Headers container width
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// this.headTblCont.style.width = this.tblCont.clientWidth+'px';
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tbl.style.width = '';
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//
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this.headTbl.style.width = tbl.clientWidth + 'px';
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//
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//scroll synchronisation
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Event.add(this.tblCont, 'scroll', (evt)=> {
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var elm = Event.target(evt);
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var scrollLeft = elm.scrollLeft;
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this.headTblCont.scrollLeft = scrollLeft;
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//New pointerX calc taking into account scrollLeft
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// if(!o.isPointerXOverwritten){
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// try{
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// o.Evt.pointerX = function(evt){
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// var e = evt || global.event;
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// var bdScrollLeft = tf_StandardBody().scrollLeft +
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// scrollLeft;
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// return (e.pageX + scrollLeft) ||
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// (e.clientX + bdScrollLeft);
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// };
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// o.isPointerXOverwritten = true;
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// } catch(err) {
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// o.isPointerXOverwritten = false;
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// }
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// }
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});
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//Configure sort extension if any
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var sort = (f.extensions || []).filter(function(itm){
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return itm.name === 'sort';
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});
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if(sort.length === 1){
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sort[0].async_sort = true;
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sort[0].trigger_ids = sortTriggers;
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}
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// if(this.gridEnableColResizer){
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// if(!tf.hasExtensions){
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// tf.extensions = {
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// name:['ColumnsResizer_'+tf.id],
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// src:[this.gridColResizerPath],
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// description:['Columns Resizing'],
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// initialize:[function(o){
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// o.SetColsResizer('ColumnsResizer_'+o.id);}]
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// };
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// tf.hasExtensions = true;
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// } else {
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// if(!tf._containsStr(
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// 'colsresizer',
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// Str.lower(tf.extensions.src.toString())) ){
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// tf.extensions.name.push('ColumnsResizer_'+tf.id);
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// tf.extensions.src.push(tf.gridColResizerPath);
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// tf.extensions.description.push('Columns Resizing');
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// tf.extensions.initialize.push(function(o){
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// o.SetColsResizer('ColumnsResizer_'+o.id);});
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// }
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// }
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// }
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//Default columns resizer properties for grid layout
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// f.col_resizer_cols_headers_table = this.headTbl.getAttribute('id');
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// f.col_resizer_cols_headers_index = this.gridHeadRowIndex;
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// f.col_resizer_width_adjustment = 0;
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// f.col_enable_text_ellipsis = false;
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//Cols generation for all browsers excepted IE<=7
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this.tblHasColTag = Dom.tag(tbl, 'col').length > 0 ? true : false;
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//Col elements are enough to keep column widths after sorting and
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//filtering
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var createColTags = function(){
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for(var k=(tf.nbCells-1); k>=0; k--){
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var col = Dom.create('col', ['id', tf.id+'_col_'+k]);
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tbl.insertBefore(col, tbl.firstChild);
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col.style.width = tf.colWidths[k];
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this.gridColElms[k] = col;
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}
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this.tblHasColTag = true;
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};
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if(!this.tblHasColTag){
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createColTags.call(this);
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} else {
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var cols = Dom.tag(tbl, 'col');
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for(var ii=0; ii<tf.nbCells; ii++){
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cols[ii].setAttribute('id', tf.id+'_col_'+ii);
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cols[ii].style.width = tf.colWidths[ii];
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this.gridColElms.push(cols[ii]);
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}
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}
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var afterColResizedFn = Types.isFn(f.on_after_col_resized) ?
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f.on_after_col_resized : null;
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f.on_after_col_resized = function(o, colIndex){
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if(!colIndex){
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return;
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}
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var w = o.crWColsRow.cells[colIndex].style.width;
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var col = o.gridColElms[colIndex];
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col.style.width = w;
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var thCW = o.crWColsRow.cells[colIndex].clientWidth;
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var tdCW = o.crWRowDataTbl.cells[colIndex].clientWidth;
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if(thCW != tdCW){
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o.headTbl.style.width = tbl.clientWidth+'px';
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}
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if(afterColResizedFn){
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afterColResizedFn.call(null,o,colIndex);
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}
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};
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if(tbl.clientWidth !== this.headTbl.clientWidth){
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tbl.style.width = this.headTbl.clientWidth+'px';
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}
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}
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/**
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* Removes the grid layout
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*/
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destroy(){
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var tf = this.tf;
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var tbl = tf.tbl;
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if(!tf.gridLayout){
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return;
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}
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var t = tbl.parentNode.removeChild(tbl);
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this.tblMainCont.parentNode.insertBefore(t, this.tblMainCont);
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this.tblMainCont.parentNode.removeChild(this.tblMainCont);
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this.tblMainCont = null;
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this.headTblCont = null;
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this.headTbl = null;
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this.tblCont = null;
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tbl.outerHTML = tf.sourceTblHtml;
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//needed to keep reference of table element
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tbl = Dom.id(tf.id);
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}
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}</code></pre>
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