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https://github.com/tag1consulting/d7_to_d10_migration.git
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70 lines
2.7 KiB
JavaScript
70 lines
2.7 KiB
JavaScript
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(function ($) {
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/**
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* Shows checked and disabled checkboxes for inherited permissions.
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*/
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Drupal.behaviors.permissions = {
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attach: function (context) {
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var self = this;
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$('table#permissions').once('permissions', function () {
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// On a site with many roles and permissions, this behavior initially has
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// to perform thousands of DOM manipulations to inject checkboxes and hide
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// them. By detaching the table from the DOM, all operations can be
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// performed without triggering internal layout and re-rendering processes
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// in the browser.
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var $table = $(this);
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if ($table.prev().length) {
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var $ancestor = $table.prev(), method = 'after';
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}
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else {
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var $ancestor = $table.parent(), method = 'append';
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}
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$table.detach();
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// Create dummy checkboxes. We use dummy checkboxes instead of reusing
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// the existing checkboxes here because new checkboxes don't alter the
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// submitted form. If we'd automatically check existing checkboxes, the
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// permission table would be polluted with redundant entries. This
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// is deliberate, but desirable when we automatically check them.
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var $dummy = $('<input type="checkbox" class="dummy-checkbox" disabled="disabled" checked="checked" />')
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.attr('title', Drupal.t("This permission is inherited from the authenticated user role."))
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.hide();
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$('input[type=checkbox]', this).not('.rid-2, .rid-1').addClass('real-checkbox').each(function () {
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$dummy.clone().insertAfter(this);
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});
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// Initialize the authenticated user checkbox.
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$('input[type=checkbox].rid-2', this)
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.bind('click.permissions', self.toggle)
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// .triggerHandler() cannot be used here, as it only affects the first
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// element.
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.each(self.toggle);
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// Re-insert the table into the DOM.
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$ancestor[method]($table);
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});
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},
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/**
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* Toggles all dummy checkboxes based on the checkboxes' state.
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*
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* If the "authenticated user" checkbox is checked, the checked and disabled
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* checkboxes are shown, the real checkboxes otherwise.
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*/
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toggle: function () {
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var authCheckbox = this, $row = $(this).closest('tr');
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// jQuery performs too many layout calculations for .hide() and .show(),
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// leading to a major page rendering lag on sites with many roles and
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// permissions. Therefore, we toggle visibility directly.
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$row.find('.real-checkbox').each(function () {
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this.style.display = (authCheckbox.checked ? 'none' : '');
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});
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$row.find('.dummy-checkbox').each(function () {
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this.style.display = (authCheckbox.checked ? '' : 'none');
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});
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}
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};
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})(jQuery);
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