behaviors

Append is-active class. The link is only active if its path corresponds to the current path, the language of the linked path is equal to the current language, and if the query parameters of the link equal those of the current request, since the same request with different query parameters may yield a different page (e.g. pagers, exposed View filters). Does not discriminate based on element type, so allows you to set the is-active class on any element: a, li…

Attaches the Ajax behavior to each Ajax form element.

Attaches the autocomplete behavior to all required fields.

Attaches the batch behavior to progress bars.

Handles `aria-expanded` and `aria-pressed` attributes on details elements.

Adds a summary of a details element's contents to its summary element.

Builds a div element with the aria-live attribute and add it to the DOM.

Registers a resize handler on the window.

Sets summaries about revision and translation of entities.

Prepopulate form fields with information from the visitor browser.

Prevents consecutive form submissions of identical form values. Repetitive form submissions that would submit the identical form values are prevented, unless the form values are different to the previously submitted values. This is a simplified re-implementation of a user-agent behavior that should be natively supported by major web browsers, but at this time, only Firefox has a built-in protection. A form value-based approach ensures that the constraint is triggered for consecutive, identical form submissions only. Compared to that, a form button-based approach would (1) rely on [visible] buttons to exist where technically not required and (2) require more complex state management if there are multiple buttons in a form. This implementation is based on form-level submit events only and relies on jQuery's serialize() method to determine submitted form values. As such, the following limitations exist: - Event handlers on form buttons that preventDefault() do not receive a double-submit protection. That is deemed to be fine, since such button events typically trigger reversible client-side or server-side operations that are local to the context of a form only. - Changed values in advanced form controls, such as file inputs, are not part of the form values being compared between consecutive form submits (due to limitations of jQuery.serialize()). That is deemed to be acceptable, because if the user forgot to attach a file, then the size of HTTP payload will most likely be small enough to be fully passed to the server endpoint within (milli)seconds. If a user mistakenly attached a wrong file and is technically versed enough to cancel the form submission (and HTTP payload) in order to attach a different file, then that edge-case is not supported here. Lastly, all forms submitted via HTTP GET are idempotent by definition of HTTP standards, so excluded in this implementation.

Triggers the 'formUpdated' event on form elements when they are modified.

Attach the machine-readable name form element behavior.

Set the client's system time zone as default values of form fields.

Attaches the states.

Drag and drop table rows with field manipulation. Using the drupal_attach_tabledrag() function, any table with weights or parent relationships may be made into draggable tables. Columns containing a field may optionally be hidden, providing a better user experience. Created tableDrag instances may be modified with custom behaviors by overriding the .onDrag, .onDrop, .row.onSwap, and .row.onIndent methods. See blocks.js for an example of adding additional functionality to tableDrag.

Attaches sticky table headers.

Attach the tableResponsive function to Drupal.behaviors.

Initialize tableSelects.

Fills all time[data-drupal-time-diff] elements with a refreshing time diff.

This script transforms a set of details into a stack of vertical tabs. Each tab may have a summary which can be updated by another script. For that to work, each details element has an associated 'verticalTabCallback' (with jQuery.data() attached to the details), which is called every time the user performs an update to a form element inside the tab pane.