define(["exports", "../dom", "../types", "../helpers", "../event"], function (exports, _dom, _types, _helpers, _event) {
  "use strict";

  var _classProps = function (child, staticProps, instanceProps) {
    if (staticProps) Object.defineProperties(child, staticProps);
    if (instanceProps) Object.defineProperties(child.prototype, instanceProps);
  };

  var Dom = _dom.Dom;
  var Types = _types.Types;
  var Helpers = _helpers.Helpers;
  var Event = _event.Event;
  var GridLayout = (function () {
    var GridLayout = function GridLayout(tf) {
      var f = tf.fObj;

      //defines grid width
      this.gridWidth = f.grid_width || null;
      //defines grid height
      this.gridHeight = f.grid_height || null;
      //defines css class for main container
      this.gridMainContCssClass = f.grid_cont_css_class || "grd_Cont";
      //defines css class for div containing table
      this.gridContCssClass = f.grid_tbl_cont_css_class || "grd_tblCont";
      //defines css class for div containing headers' table
      this.gridHeadContCssClass = f.grid_tblHead_cont_css_class || "grd_headTblCont";
      //defines css class for div containing rows counter, paging etc.
      this.gridInfDivCssClass = f.grid_inf_grid_css_class || "grd_inf";
      //defines which row contains column headers
      this.gridHeadRowIndex = f.grid_headers_row_index || 0;
      //array of headers row indexes to be placed in header table
      this.gridHeadRows = f.grid_headers_rows || [0];
      //generate filters in table headers
      this.gridEnableFilters = f.grid_enable_default_filters !== undefined ? f.grid_enable_default_filters : true;
      //default col width
      this.gridDefaultColWidth = f.grid_default_col_width || "100px";
      //enables/disables columns resizer
      this.gridEnableColResizer = f.grid_enable_cols_resizer !== undefined ? f.grid_enable_cols_resizer : true;
      //defines col resizer script path
      this.gridColResizerPath = f.grid_cont_col_resizer_path || this.basePath + "TFExt_ColsResizer/TFExt_ColsResizer.js";

      this.tf = tf;
    };

    _classProps(GridLayout, null, {
      init: {
        writable: true,
        value: function () {
          var tf = this.tf;
          var f = tf.fObj;
          var tbl = tf.tbl;

          tf.isExternalFlt = true;

          // in case column widths are not set default width 100px
          if (!tf.hasColWidth) {
            tf.colWidth = [];
            for (var k = 0; k < tf.nbCells; k++) {
              var colW, cell = tbl.rows[this.gridHeadRowIndex].cells[k];
              if (cell.width !== "") {
                colW = cell.width;
              } else if (cell.style.width !== "") {
                colW = parseInt(cell.style.width, 10);
              } else {
                colW = this.gridDefaultColWidth;
              }
              tf.colWidth[k] = colW;
            }
            tf.hasColWidth = true;
          }
          tf.SetColWidths(this.gridHeadRowIndex);

          var tblW; //initial table width
          if (tbl.width !== "") {
            tblW = tbl.width;
          } else if (tbl.style.width !== "") {
            tblW = parseInt(tbl.style.width, 10);
          } else {
            tblW = tbl.clientWidth;
          }

          //Main container: it will contain all the elements
          this.tblMainCont = Dom.create("div", ["id", tf.prfxMainTblCont + tf.id]);
          this.tblMainCont.className = this.gridMainContCssClass;
          if (this.gridWidth) {
            this.tblMainCont.style.width = this.gridWidth;
          }
          tbl.parentNode.insertBefore(this.tblMainCont, tf.tbl);

          //Table container: div wrapping content table
          this.tblCont = Dom.create("div", ["id", tf.prfxTblCont + tf.id]);
          this.tblCont.className = this.gridContCssClass;
          if (this.gridWidth) {
            this.tblCont.style.width = this.gridWidth;
          }
          if (this.gridHeight) {
            this.tblCont.style.height = this.gridHeight;
          }
          tbl.parentNode.insertBefore(this.tblCont, tf.tbl);
          var t = tbl.parentNode.removeChild(tf.tbl);
          this.tblCont.appendChild(t);

          //In case table width is expressed in %
          if (tbl.style.width === "") {
            tbl.style.width = (tf.__containsStr("%", tblW) ? tbl.clientWidth : tblW) + "px";
          }

          var d = this.tblCont.parentNode.removeChild(this.tblCont);
          this.tblMainCont.appendChild(d);

          //Headers table container: div wrapping headers table
          this.headTblCont = Dom.create("div", ["id", tf.prfxHeadTblCont + tf.id]);
          this.headTblCont.className = this.gridHeadContCssClass;
          if (this.gridWidth) {
            this.headTblCont.style.width = this.gridWidth;
          }

          //Headers table
          this.headTbl = Dom.create("table", ["id", tf.prfxHeadTbl + tf.id]);
          var tH = Dom.create("tHead"); //IE<7 needs it

          //1st row should be headers row, ids are added if not set
          //Those ids are used by the sort feature
          var hRow = tbl.rows[this.gridHeadRowIndex];
          var sortTriggers = [];
          for (var n = 0; n < tf.nbCells; n++) {
            var c = hRow.cells[n];
            var thId = c.getAttribute("id");
            if (!thId || thId === "") {
              thId = tf.prfxGridTh + n + "_" + tf.id;
              c.setAttribute("id", thId);
            }
            sortTriggers.push(thId);
          }

          //Filters row is created
          var filtersRow = Dom.create("tr");
          if (this.gridEnableFilters && tf.fltGrid) {
            tf.externalFltTgtIds = [];
            for (var j = 0; j < tf.nbCells; j++) {
              var fltTdId = tf.prfxFlt + j + tf.prfxGridFltTd + tf.id;
              var cl = Dom.create(tf.fltCellTag, ["id", fltTdId]);
              filtersRow.appendChild(cl);
              tf.externalFltTgtIds[j] = fltTdId;
            }
          }
          //Headers row are moved from content table to headers table
          for (var i = 0; i < this.gridHeadRows.length; i++) {
            var headRow = tbl.rows[this.gridHeadRows[0]];
            tH.appendChild(headRow);
          }
          this.headTbl.appendChild(tH);
          if (tf.filtersRowIndex === 0) {
            tH.insertBefore(filtersRow, hRow);
          } else {
            tH.appendChild(filtersRow);
          }

          this.headTblCont.appendChild(this.headTbl);
          this.tblCont.parentNode.insertBefore(this.headTblCont, this.tblCont);

          //THead needs to be removed in content table for sort feature
          var thead = Dom.tag(tf.tbl, "thead");
          if (thead.length > 0) {
            tbl.removeChild(thead[0]);
          }

          //Headers table style
          this.headTbl.style.width = tbl.style.width;
          this.headTbl.style.tableLayout = "fixed";
          tbl.style.tableLayout = "fixed";
          this.headTbl.cellPadding = tbl.cellPadding;
          this.headTbl.cellSpacing = tbl.cellSpacing;

          //Headers container width
          this.headTblCont.style.width = this.tblCont.clientWidth + "px";

          //content table without headers needs col widths to be reset
          tf.SetColWidths();

          tbl.style.width = "";
          if (Helpers.isIE()) {
            this.headTbl.style.width = "";
          }

          //scroll synchronisation
          var o = this; //TF object

          Event.add(this.tblCont, "scroll", function () {
            o.headTblCont.scrollLeft = this.scrollLeft;
            var _o = this; //this = scroll element
            //New pointerX calc taking into account scrollLeft
            if (!o.isPointerXOverwritten) {
              try {
                o.Evt.pointerX = function (e) {
                  e = e || global.event;
                  var scrollLeft = tf_StandardBody().scrollLeft + _o.scrollLeft;
                  return (e.pageX + _o.scrollLeft) || (e.clientX + scrollLeft);
                };
                o.isPointerXOverwritten = true;
              } catch (err) {
                o.isPointerXOverwritten = false;
              }
            }
          });

          //Sort is enabled if not specified in config object
          if (f.sort !== false) {
            tf.sort = true;
            tf.sortConfig.asyncSort = true;
            tf.sortConfig.triggerIds = sortTriggers;
          }

          if (this.gridEnableColResizer) {
            if (!tf.hasExtensions) {
              tf.extensions = {
                name: ["ColumnsResizer_" + tf.id],
                src: [this.gridColResizerPath],
                description: ["Columns Resizing"],
                initialize: [function (o) {
                  o.SetColsResizer("ColumnsResizer_" + o.id);
                }]
              };
              tf.hasExtensions = true;
            } else {
              if (!tf.__containsStr("colsresizer", Str.lower(tf.extensions.src.toString()))) {
                tf.extensions.name.push("ColumnsResizer_" + tf.id);
                tf.extensions.src.push(tf.gridColResizerPath);
                tf.extensions.description.push("Columns Resizing");
                tf.extensions.initialize.push(function (o) {
                  o.SetColsResizer("ColumnsResizer_" + o.id);
                });
              }
            }
          }

          //Default columns resizer properties for grid layout
          f.col_resizer_cols_headers_table = this.headTbl.getAttribute("id");
          f.col_resizer_cols_headers_index = this.gridHeadRowIndex;
          f.col_resizer_width_adjustment = 0;
          f.col_enable_text_ellipsis = false;

          //Cols generation for all browsers excepted IE<=7
          o.tblHasColTag = Dom.tag(tbl, "col").length > 0 ? true : false;
          if (!Helpers.isIE()) {
            //Col elements are enough to keep column widths after sorting and
            //filtering
            var createColTags = function (o) {
              if (!o) {
                return;
              }
              for (var k = (o.nbCells - 1); k >= 0; k--) {
                var col = Dom.create("col", ["id", o.id + "_col_" + k]);
                tbl.firstChild.parentNode.insertBefore(col, tbl.firstChild);
                col.style.width = o.colWidth[k];
                o.gridColElms[k] = col;
              }
              o.tblHasColTag = true;
            };
            if (!o.tblHasColTag) {
              createColTags(o);
            } else {
              var cols = Dom.tag(tbl, "col");
              for (var ii = 0; ii < o.nbCells; ii++) {
                cols[ii].setAttribute("id", o.id + "_col_" + ii);
                cols[ii].style.width = o.colWidth[ii];
                o.gridColElms.push(cols[ii]);
              }
            }
          }

          //IE <= 7 needs an additional row for widths as col element width is
          //not enough...
          if (Helpers.isIE()) {
            var tbody = Dom.tag(tbl, "tbody"), r;
            if (tbody.length > 0) {
              r = tbody[0].insertRow(0);
            } else {
              r = tbl.insertRow(0);
            }
            r.style.height = "0px";
            for (var x = 0; x < o.nbCells; x++) {
              var col = Dom.create("td", ["id", o.id + "_col_" + x]);
              col.style.width = o.colWidth[x];
              tbl.rows[1].cells[x].style.width = "";
              r.appendChild(col);
              o.gridColElms.push(col);
            }
            this.hasGridWidthsRow = true;
            //Data table row with widths expressed
            o.leadColWidthsRow = tbl.rows[0];
            o.leadColWidthsRow.setAttribute("validRow", "false");

            var beforeSortFn = Types.isFn(f.on_before_sort) ? f.on_before_sort : null;
            f.on_before_sort = function (o, colIndex) {
              o.leadColWidthsRow.setAttribute("validRow", "false");
              if (beforeSortFn) {
                beforeSortFn.call(null, o, colIndex);
              }
            };

            var afterSortFn = Types.isFn(f.on_after_sort) ? f.on_after_sort : null;
            f.on_after_sort = function (o, colIndex) {
              if (o.leadColWidthsRow.rowIndex !== 0) {
                var r = o.leadColWidthsRow;
                if (tbody.length > 0) {
                  tbody[0].moveRow(o.leadColWidthsRow.rowIndex, 0);
                } else {
                  tbl.moveRow(o.leadColWidthsRow.rowIndex, 0);
                }
              }
              if (afterSortFn) {
                afterSortFn.call(null, o, colIndex);
              }
            };
          }

          var afterColResizedFn = Types.isFn(f.on_after_col_resized) ? f.on_after_col_resized : null;
          f.on_after_col_resized = function (o, colIndex) {
            if (!colIndex) {
              return;
            }
            var w = o.crWColsRow.cells[colIndex].style.width;
            var col = o.gridColElms[colIndex];
            col.style.width = w;

            var thCW = o.crWColsRow.cells[colIndex].clientWidth;
            var tdCW = o.crWRowDataTbl.cells[colIndex].clientWidth;

            if (Helpers.isIE()) {
              tbl.style.width = o.headTbl.clientWidth + "px";
            }

            if (thCW != tdCW && !Helpers.isIE()) {
              o.headTbl.style.width = tbl.clientWidth + "px";
            }

            if (afterColResizedFn) {
              afterColResizedFn.call(null, o, colIndex);
            }
          };

          if (tbl.clientWidth !== this.headTbl.clientWidth) {
            tbl.style.width = this.headTbl.clientWidth + "px";
          }

          tf.refRow = Helpers.isIE() ? (tf.refRow + 1) : 0;
        }
      },
      destroy: {
        writable: true,
        value: function () {
          var tf = this.tf;
          var tbl = tf.tbl;

          if (!tf.gridLayout) {
            return;
          }
          var t = tbl.parentNode.removeChild(tbl);
          this.tblMainCont.parentNode.insertBefore(t, this.tblMainCont);
          this.tblMainCont.parentNode.removeChild(this.tblMainCont);

          this.tblMainCont = null;
          this.headTblCont = null;
          this.headTbl = null;
          this.tblCont = null;

          tbl.outerHTML = tf.sourceTblHtml;
          tbl = Dom.id(tf.id); //needed to keep reference
        }
      }
    });

    return GridLayout;
  })();

  exports.GridLayout = GridLayout;
});