jQuery多重选择器与否决

Question

I have a list of div's I want to filter with 2 groups of checkboxes: Type and Category .

When 2 categories are checked, it should show DIV's containing at least 1 of the categories.

When a type is checked, it should only shows DIV's from that type. Even if it contains a checked category.

<input type="checkbox" name="type[]" value="Type 1">
<input type="checkbox" name="type[]" value="Type 2">
<input type="checkbox" name="type[]" value="Type 3">

<input type="checkbox" name="category[]" value="1">
<input type="checkbox" name="category[]" value="2">
<input type="checkbox" name="category[]" value="3">
<input type="checkbox" name="category[]" value="4">

The DIV's:

<div data-type="Type 1" data-cat="1 4">
<div data-type="Type 2" data-cat="1 2 3">

The code I have so far (only filters type):

$('form input:checkbox').change(function(){
  var type = [];
  var checked = $(':checkbox:checked').length;

  // Hide all
  $('#videoHolder').children('div').hide();

  $(':checkbox:checked').each(function(i){
    type[i] = $(this).val();
    $('#videoHolder').children('div[data-type="' + type[i] + '"]').fadeIn();
  });

  // Show all
  if(checked==0){
      $('#videoHolder').children('div').fadeIn();
  } 
});

Answer 1

You would need to check each category attribute by hand. Or you might consider using the regEx plugin for jQuery.

// select only category check box-es!!
$(':checkbox:checked').each(function(i, checkBox){

    var search = $(checkBox).val();

    $('#videoHolder').children('div').each(function(index, divTag) {
      var category = $(divTag).attr("data-cat");
      var dataType = $(divTag).attr("data-type");

     if (isOfType(search, dataType) || containsCategory(search, category))
         $(divTag).fadeIn();
     });
  });