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var table_helper = { |
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Init: function(tableId){ |
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var tContainer = document.getElementById(tableId); |
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if(!this.IePrior(9)){ |
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SetColumnsHoverEffect(tContainer, tableId); |
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} |
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var tfoot = tContainer.getElementsByTagName("tfoot")[0]; |
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this.ProcessPaginationLinks(tfoot); |
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function SetColumnsHoverEffect(tContainer, tableId){ |
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var tHcells = tContainer.rows[0].cells; |
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for(var i = 0; i < tHcells.length; i++){ |
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if(tHcells[i].firstChild.tagName === "A"){ |
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tHcells[i].firstChild.setAttribute("onmouseover", |
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"table.ColumnHover('" + tableId + "'," + i + ");"); |
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tHcells[i].firstChild.setAttribute("onmouseout", |
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"table.ColumnHover('" + tableId + "');"); |
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} |
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} |
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} |
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}, |
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ColumnHover: function(tableContainer, index){ |
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var rows = document.getElementById(tableContainer).rows; |
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var upto = rows.length - 1; |
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if(typeof index === "undefined"){ |
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ColumnHoverRelease(rows, upto); |
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}else{ |
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for(var i = 0; i < upto; i++){ |
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rows[i].cells[index].setAttribute("lang", "col-hover"); |
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} |
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} |
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function ColumnHoverRelease(rows, upto){ |
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for(var i = 0; i < upto; i++){ |
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for(var j = 0; j < rows[i].cells.length; j++){ |
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if(rows[i].cells[j].lang){ |
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rows[i].cells[j].removeAttribute("lang"); |
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} |
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} |
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} |
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}; |
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}, |
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BuildRequest: { |
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Run: function(tableId){ |
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var rq = {tableId: tableId, strDesc: this.strDesc, strAsc: this.strAsc}; |
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var parent = this.helper.BuildRequest; |
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parent.sort(rq); |
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parent.filter(rq); |
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return rq; |
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}, |
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sort: function(rq){ |
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var thTags = document.getElementById(rq.tableId) |
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.getElementsByTagName("thead")[0] |
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.getElementsByTagName("th"); |
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var length = thTags.length; |
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for(var i = 0; i < length; i++){ |
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var link = thTags[i].getElementsByTagName("a")[0]; |
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if(link){ |
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var span = link.getElementsByTagName("span")[0]; |
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if(span && sortBySpan(span, i)){ |
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break; |
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} |
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} |
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} |
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65
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function sortBySpan(span, i){ |
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var order = span.innerHTML; |
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if(order.length === 1){ |
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rq.colNo = i; |
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rq.colOrd = order === rq.strDesc ? "desc" : "asc"; |
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} |
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return rq.colNo === i; |
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} |
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}, |
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filter: function(rq){ |
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var r = getFilterFieldsByTableID(rq.tableId); |
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if(r.filter !== null){ |
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rq.filter = r.filter; |
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} |
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if(r.filterBy !== null){ |
80
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rq.filterBy = r.filterBy; |
81
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} |
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83
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function getFilterFieldsByTableID(tableID){ |
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var fields = {filterBy: null, filter: null}; |
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var filterDiv = getFilterDivByTableIDOrNull(tableID); |
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if(filterDiv !== null){ |
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setFilterBy(fields, filterDiv); |
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setFilterValue(fields, filterDiv); |
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} |
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return fields; |
91
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92
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function getFilterDivByTableIDOrNull(tableID){ |
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if(document.getElementById(tableID).parentNode |
94
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.getElementsByTagName("div").length > 0 |
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){ |
96
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var containerDivs = document.getElementById(tableID) |
97
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.parentNode.getElementsByTagName("div"); |
98
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for(var i = 0; i < containerDivs.length; i++){ |
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if(containerDivs[i].getAttribute("class") === "filter"){ |
100
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return containerDivs[i]; |
101
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} |
102
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} |
103
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104
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} |
105
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return null; |
106
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} |
107
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108
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function setFilterBy(fields, filterDiv){ |
109
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var select = filterDiv.getElementsByTagName("select")[0]; |
110
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if(select && |
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select.options[select.selectedIndex].value !== "all" |
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){ |
113
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fields.filterBy = select.options[select.selectedIndex].value; |
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} |
115
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} |
116
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function setFilterValue(fields, filterDiv){ |
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var textObj = filterDiv.getElementsByTagName("input")[0]; |
118
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if(textObj && textObj.value && textObj.value.length !== 0){ |
119
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fields.filter = encodeURIComponent(textObj.value.trim()); |
120
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} |
121
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} |
122
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} |
123
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} |
124
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}, |
125
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IePrior: function(v){ |
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var rv = false; |
127
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if(window.navigator.appName === 'Microsoft Internet Explorer'){ |
128
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var ua = window.navigator.userAgent; |
129
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var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})"); |
130
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if(re.exec(ua) !== null){ |
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rv = parseFloat(RegExp.$1); |
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} |
133
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rv = rv < v ? true : false; |
134
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} |
135
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return rv; |
136
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}, |
137
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GetParent: function(obj, objType){ |
138
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while(obj && obj.tagName !== objType.toUpperCase()){ |
139
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obj = obj.parentNode; |
140
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} |
141
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return obj; |
142
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}, |
143
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ProcessPaginationLinks: function(tfoot){ |
144
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var pLinks = tfoot.querySelectorAll(".paging a"); |
145
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if(pLinks.length > 0){ |
146
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for(var j = 0; j < pLinks.length; j++){ |
147
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pLinks[j].setAttribute("href", "javascript:void(0);"); |
148
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pLinks[j].setAttribute("onclick", "return table.GoPage(this);"); |
149
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} |
150
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} |
151
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}, |
152
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RequestToUrl: function(rq){ |
153
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var url = location.pathname + ".json" + location.search; |
154
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if(typeof rq === "object"){ |
155
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var getUrlVarName = { |
156
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colNo: "col", colOrd: "ord", filter: "filter", |
157
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filterBy: "filter-by", pageNo: "pg", exportType: "export", |
158
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tableId: "table-id" |
159
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}; |
160
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delete rq.strAsc; |
161
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delete rq.strDesc; |
162
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var flagFirst = location.search.length < 1 ? true : false; |
163
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for(var r in rq){ |
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164
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var clue = flagFirst === true ? "?" : "&"; |
165
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url += clue + getUrlVarName[r] + "=" + rq[r]; |
166
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flagFirst = false; |
167
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} |
168
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} |
169
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return url; |
170
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} |
171
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}; |
172
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When iterating over the keys of an object, this includes not only the keys of the object, but also keys contained in the prototype of that object. It is generally a best practice to check for these keys specifically: