closes #77: make use of the searchCols option to restore search strin…

…gs for columns

inst/htmlwidgets/datatables.js

@@ -33,6 +33,15 @@ HTMLWidgets.widget({
  };
  $.extend(options, data.options || {});
 
+ var searchCols = options.searchCols;
+ if (searchCols) {
+ searchCols = searchCols.map(function(x) {
+ return x === null ? '' : x.search;
+ });
+ // FIXME: this means I don't respect the escapeRegex setting
+ delete options.searchCols;
+ }
+
  var table = $table.DataTable(options);
 
  // server-side processing?
@@ -61,6 +70,11 @@ HTMLWidgets.widget({
  $input.on('input blur', function() {
  $input.next('span').toggle(Boolean($input.val()));
  });
+ var searchCol; // search string for this column
+ if (searchCols && searchCols[i]) {
+ searchCol = searchCols[i];
+ $input.val(searchCol);
+ }
  // Bootstrap sets pointer-events to none and we won't be able to click
  // the clear button
  $input.next('span').css('pointer-events', 'auto').hide().click(function() {
@@ -229,7 +243,11 @@ HTMLWidgets.widget({
  // server-side processing will be handled by R (or whatever server
  // language you use); the following code is only needed for client-side
  // processing
- if (server) return;
+ if (server) {
+ // if a search string has been pre-set, search now
+ if (searchCol) table.column(i).search(searchCol).draw();
+ return;
+ }
 
  var customFilter = function(settings, data, dataIndex) {
  // there is no way to attach a search function to a specific table,
@@ -264,6 +282,17 @@ HTMLWidgets.widget({
 
  $.fn.dataTable.ext.search.push(customFilter);
 
+ // search for the preset search strings if it is non-empty
+ if (searchCol) {
+ if (inArray(type, ['factor', 'logical'])) {
+ filter[0].selectize.setValue(JSON.parse(searchCol));
+ } else if (type === 'character') {
+ $input.trigger('input');
+ } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+ $input.trigger('change');
+ }
+ }
+
  });
 
  }