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(function ($) {
Drupal.behaviors.tableSelect = {
attach: function (context, settings) {
// Select the inner-most table in case of nested tables.
$('th.select-all', context).closest('table').once('table-select', Drupal.tableSelect);
}
};
Drupal.tableSelect = function () {
// Do not add a "Select all" checkbox if there are no rows with checkboxes in the table
if ($('td input:checkbox', this).length == 0) {
return;
}
// Keep track of the table, which checkbox is checked and alias the settings.
var table = this, checkboxes, lastChecked;
var strings = { 'selectAll': Drupal.t('Select all rows in this table'), 'selectNone': Drupal.t('Deselect all rows in this table') };
var updateSelectAll = function (state) {
// Update table's select-all checkbox (and sticky header's if available).
$(table).prev('table.sticky-header').andSelf().find('th.select-all input:checkbox').each(function() {
$(this).attr('title', state ? strings.selectNone : strings.selectAll);
this.checked = state;
});
};
// Find all <th> with class select-all, and insert the check all checkbox.
$('th.select-all', table).prepend($('<input type="checkbox" class="form-checkbox" />').attr('title', strings.selectAll)).click(function (event) {
if ($(event.target).is('input:checkbox')) {
// Loop through all checkboxes and set their state to the select all checkbox' state.
checkboxes.each(function () {
this.checked = event.target.checked;
// Either add or remove the selected class based on the state of the check all checkbox.
$(this).closest('tr').toggleClass('selected', this.checked);
});
// Update the title and the state of the check all box.
updateSelectAll(event.target.checked);
}
});
// For each of the checkboxes within the table that are not disabled.
checkboxes = $('td input:checkbox:enabled', table).click(function (e) {
// Either add or remove the selected class based on the state of the check all checkbox.
$(this).closest('tr').toggleClass('selected', this.checked);
// If this is a shift click, we need to highlight everything in the range.
// Also make sure that we are actually checking checkboxes over a range and
// that a checkbox has been checked or unchecked before.
if (e.shiftKey && lastChecked && lastChecked != e.target) {
// We use the checkbox's parent TR to do our range searching.
Drupal.tableSelectRange($(e.target).closest('tr')[0], $(lastChecked).closest('tr')[0], e.target.checked);
}
// If all checkboxes are checked, make sure the select-all one is checked too, otherwise keep unchecked.
updateSelectAll((checkboxes.length == $(checkboxes).filter(':checked').length));
// Keep track of the last checked checkbox.
lastChecked = e.target;
});
// If all checkboxes are checked on page load, make sure the select-all one
// is checked too, otherwise keep unchecked.
updateSelectAll((checkboxes.length == $(checkboxes).filter(':checked').length));
};
Drupal.tableSelectRange = function (from, to, state) {
// We determine the looping mode based on the order of from and to.
var mode = from.rowIndex > to.rowIndex ? 'previousSibling' : 'nextSibling';
// Traverse through the sibling nodes.
for (var i = from[mode]; i; i = i[mode]) {
// Make sure that we're only dealing with elements.
if (i.nodeType != 1) {
continue;
}
// Either add or remove the selected class based on the state of the target checkbox.
$(i).toggleClass('selected', state);
$('input:checkbox', i).each(function () {
this.checked = state;
});
if (to.nodeType) {
// If we are at the end of the range, stop.
if (i == to) {
break;
}
}
// A faster alternative to doing $(i).filter(to).length.
else if ($.filter(to, [i]).r.length) {
break;
}
}
};
})(jQuery);
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