367 lines
13 KiB
JavaScript
367 lines
13 KiB
JavaScript
/**
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* @file
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* JavaScript behaviors for Ajax.
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*/
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(function ($, Drupal) {
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'use strict';
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Drupal.webform = Drupal.webform || {};
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Drupal.webform.ajax = Drupal.webform.ajax || {};
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// Allow scrollTopOffset to be custom defined or based on whether there is a
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// floating toolbar.
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Drupal.webform.ajax.scrollTopOffset = Drupal.webform.ajax.scrollTopOffset || ($('#toolbar-administration').length ? 140 : 10);
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/**
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* Provide Webform Ajax link behavior.
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*
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* Display fullscreen progress indicator instead of throbber.
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* Copied from: Drupal.behaviors.AJAX
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*
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* @type {Drupal~behavior}
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*
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* @prop {Drupal~behaviorAttach} attach
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* Attaches the behavior to a.webform-ajax-link.
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*/
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Drupal.behaviors.webformAjaxLink = {
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attach: function (context) {
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$('.webform-ajax-link', context).once('webform-ajax-link').each(function () {
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var element_settings = {};
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element_settings.progress = {type: 'fullscreen'};
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// For anchor tags, these will go to the target of the anchor rather
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// than the usual location.
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var href = $(this).attr('href');
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if (href) {
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element_settings.url = href;
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element_settings.event = 'click';
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}
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element_settings.dialogType = $(this).data('dialog-type');
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element_settings.dialogRenderer = $(this).data('dialog-renderer');
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element_settings.dialog = $(this).data('dialog-options');
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element_settings.base = $(this).attr('id');
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element_settings.element = this;
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Drupal.ajax(element_settings);
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// Close all open modal dialogs when opening off-canvas dialog.
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if (element_settings.dialogRenderer === 'off_canvas') {
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$(this).on('click', function () {
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$('.ui-dialog.webform-ui-dialog:visible').find('.ui-dialog-content').dialog('close');
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});
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}
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});
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}
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};
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/**
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* Adds a hash (#) to current pages location for links and buttons
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*
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* @type {Drupal~behavior}
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*
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* @prop {Drupal~behaviorAttach} attach
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* Attaches the behavior to a[data-hash] or :button[data-hash].
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*
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* @see \Drupal\webform_ui\WebformUiEntityElementsForm::getElementRow
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* @see Drupal.behaviors.webformFormTabs
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*/
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Drupal.behaviors.webformAjaxHash = {
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attach: function (context) {
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$('[data-hash]', context).once('webform-ajax-hash').each(function () {
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var hash = $(this).data('hash');
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if (hash) {
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$(this).on('click', function () {
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location.hash = $(this).data('hash');
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});
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}
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});
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}
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};
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/**
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* Provide Ajax callback for confirmation back to link.
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*
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* @type {Drupal~behavior}
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*
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* @prop {Drupal~behaviorAttach} attach
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* Attaches the behavior to confirmation back to link.
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*/
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Drupal.behaviors.webformConfirmationBackAjax = {
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attach: function (context) {
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$('.js-webform-confirmation-back-link-ajax', context)
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.once('webform-confirmation-back-ajax')
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.click(function (event) {
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var $form = $(this).parents('form');
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// Trigger the Ajax call back for the hidden submit button.
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// @see \Drupal\webform\WebformSubmissionForm::getCustomForm
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$form.find('.js-webform-confirmation-back-submit-ajax').click();
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// Move the progress indicator from the submit button to after this link.
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// @todo Figure out a better way to set a progress indicator.
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var $progress_indicator = $form.find('.ajax-progress');
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if ($progress_indicator) {
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$(this).after($progress_indicator);
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}
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// Cancel the click event.
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event.preventDefault();
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event.stopPropagation();
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});
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}
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};
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/** ********************************************************************** **/
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// Ajax commands.
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/** ********************************************************************** **/
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/**
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* Track the updated table row key.
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*/
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var updateKey;
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/**
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* Track the add element key.
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*/
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var addElement;
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/**
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* Command to insert new content into the DOM.
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*
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* @param {Drupal.Ajax} ajax
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* {@link Drupal.Ajax} object created by {@link Drupal.ajax}.
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* @param {object} response
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* The response from the Ajax request.
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* @param {string} response.data
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* The data to use with the jQuery method.
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* @param {string} [response.method]
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* The jQuery DOM manipulation method to be used.
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* @param {string} [response.selector]
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* A optional jQuery selector string.
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* @param {object} [response.settings]
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* An optional array of settings that will be used.
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* @param {number} [status]
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* The XMLHttpRequest status.
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*/
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Drupal.AjaxCommands.prototype.webformInsert = function (ajax, response, status) {
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// Insert the HTML.
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this.insert(ajax, response, status);
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// Add element.
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if (addElement) {
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var addSelector = (addElement === '_root_')
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? '#webform-ui-add-element'
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: '[data-drupal-selector="edit-webform-ui-elements-' + addElement + '-add"]';
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$(addSelector).click();
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}
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// If not add element, then scroll to and highlight the updated table row.
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if (!addElement && updateKey) {
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var $element = $('tr[data-webform-key="' + updateKey + '"]');
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// Highlight the updated element's row.
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$element.addClass('color-success');
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setTimeout(function () {$element.removeClass('color-success');}, 3000);
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// Focus first tabbable item for the updated elements and handlers.
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$element.find(':tabbable:not(.tabledrag-handle)').eq(0).focus();
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// Scroll to elements that are not visible.
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if (!isScrolledIntoView($element)) {
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$('html, body').animate({scrollTop: $element.offset().top - Drupal.webform.ajax.scrollTopOffset}, 500);
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}
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}
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else {
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// Focus main content.
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$('#main-content').focus();
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}
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// Display main page's status message in a floating container.
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var $wrapper = $(response.selector);
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if ($wrapper.parents('.ui-dialog').length === 0) {
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var $messages = $wrapper.find('.messages');
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// If 'add element' don't show any messages.
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if (addElement) {
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$messages.remove();
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}
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else if ($messages.length) {
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var $floatingMessage = $('#webform-ajax-messages');
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if ($floatingMessage.length === 0) {
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$floatingMessage = $('<div id="webform-ajax-messages" class="webform-ajax-messages"></div>');
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$('body').append($floatingMessage);
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}
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if ($floatingMessage.is(':animated')) {
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$floatingMessage.stop(true, true);
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}
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$floatingMessage.html($messages).show().delay(3000).fadeOut(1000);
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}
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}
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updateKey = null; // Reset element update.
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addElement = null; // Reset add element.
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};
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/**
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* Scroll to top ajax command.
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*
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* @param {Drupal.Ajax} [ajax]
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* A {@link Drupal.ajax} object.
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* @param {object} response
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* Ajax response.
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* @param {string} response.selector
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* Selector to use.
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*
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* @see Drupal.AjaxCommands.prototype.viewScrollTop
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*/
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Drupal.AjaxCommands.prototype.webformScrollTop = function (ajax, response) {
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// Scroll to the top of the view. This will allow users
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// to browse newly loaded content after e.g. clicking a pager
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// link.
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var offset = $(response.selector).offset();
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// We can't guarantee that the scrollable object should be
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// the body, as the view could be embedded in something
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// more complex such as a modal popup. Recurse up the DOM
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// and scroll the first element that has a non-zero top.
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var scrollTarget = response.selector;
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while ($(scrollTarget).scrollTop() === 0 && $(scrollTarget).parent()) {
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scrollTarget = $(scrollTarget).parent();
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}
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if (response.target === 'page' && $(scrollTarget).length && $(scrollTarget)[0].tagName === 'HTML') {
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// Scroll to top when scroll target is the entire page.
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// @see https://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport
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var rect = $(scrollTarget)[0].getBoundingClientRect();
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if (!(rect.top >= 0 && rect.left >= 0 && rect.bottom <= $(window).height() && rect.right <= $(window).width())) {
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$(scrollTarget).animate({scrollTop: 0}, 500);
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}
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}
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else {
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// Only scroll upward.
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if (offset.top - Drupal.webform.ajax.scrollTopOffset < $(scrollTarget).scrollTop()) {
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$(scrollTarget).animate({scrollTop: (offset.top - Drupal.webform.ajax.scrollTopOffset)}, 500);
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}
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}
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// Focus on the form wrapper content bookmark if
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// .js-webform-autofocus is not enabled.
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// @see \Drupal\webform\Form\WebformAjaxFormTrait::buildAjaxForm
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var $form = $(response.selector + '-content').find('form');
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if (!$form.hasClass('js-webform-autofocus')) {
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$(response.selector + '-content').focus();
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}
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};
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/**
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* Command to refresh the current webform page.
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*
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* @param {Drupal.Ajax} [ajax]
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* {@link Drupal.Ajax} object created by {@link Drupal.ajax}.
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* @param {object} response
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* The response from the Ajax request.
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* @param {string} response.url
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* The URL to redirect to.
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* @param {number} [status]
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* The XMLHttpRequest status.
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*/
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Drupal.AjaxCommands.prototype.webformRefresh = function (ajax, response, status) {
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// Get URL path name.
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// @see https://stackoverflow.com/questions/6944744/javascript-get-portion-of-url-path
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var a = document.createElement('a');
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a.href = response.url;
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if (a.pathname === window.location.pathname && $('.webform-ajax-refresh').length) {
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updateKey = (response.url.match(/[?|&]update=([^&]+)($|&)/)) ? RegExp.$1 : null;
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addElement = (response.url.match(/[?|&]add_element=([^&]+)($|&)/)) ? RegExp.$1 : null;
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$('.webform-ajax-refresh').click();
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}
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else {
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this.redirect(ajax, response, status);
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}
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};
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/**
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* Command to close a off-canvas and modal dialog.
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*
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* If no selector is given, it defaults to trying to close the modal.
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*
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* @param {Drupal.Ajax} [ajax]
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* {@link Drupal.Ajax} object created by {@link Drupal.ajax}.
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* @param {object} response
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* The response from the Ajax request.
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* @param {string} response.selector
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* Selector to use.
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* @param {bool} response.persist
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* Whether to persist the dialog element or not.
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* @param {number} [status]
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* The HTTP status code.
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*/
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Drupal.AjaxCommands.prototype.webformCloseDialog = function (ajax, response, status) {
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if ($('#drupal-off-canvas').length) {
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// Close off-canvas system tray which is not triggered by close dialog
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// command.
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// @see Drupal.behaviors.offCanvasEvents
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$('#drupal-off-canvas').remove();
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$('body').removeClass('js-tray-open');
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// Remove all *.off-canvas events
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$(document).off('.off-canvas');
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$(window).off('.off-canvas');
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var edge = document.documentElement.dir === 'rtl' ? 'left' : 'right';
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var $mainCanvasWrapper = $('[data-off-canvas-main-canvas]');
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$mainCanvasWrapper.css('padding-' + edge, 0);
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// Resize tabs when closing off-canvas system tray.
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$(window).trigger('resize.tabs');
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}
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// https://stackoverflow.com/questions/15763909/jquery-ui-dialog-check-if-exists-by-instance-method
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if ($(response.selector).hasClass('ui-dialog-content')) {
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this.closeDialog(ajax, response, status);
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}
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};
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/**
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* Triggers audio UAs to read the supplied text.
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*
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* @param {Drupal.Ajax} [ajax]
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* A {@link Drupal.ajax} object.
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* @param {object} response
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* Ajax response.
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* @param {string} response.text
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* A string to be read by the UA.
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* @param {string} [response.priority='polite']
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* A string to indicate the priority of the message. Can be either
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* 'polite' or 'assertive'.
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*
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* @see Drupal.announce
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*/
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Drupal.AjaxCommands.prototype.webformAnnounce = function (ajax, response) {
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// Delay the announcement.
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setTimeout(function () {Drupal.announce(response.text, response.priority);}, 200);
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};
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/** ********************************************************************** **/
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// Helper functions.
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/** ********************************************************************** **/
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/**
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* Determine if element is visible in the viewport.
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*
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* @param {Element} element
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* An element.
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*
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* @return {boolean}
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* TRUE if element is visible in the viewport.
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*
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* @see https://stackoverflow.com/questions/487073/check-if-element-is-visible-after-scrolling
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*/
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function isScrolledIntoView(element) {
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var docViewTop = $(window).scrollTop();
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var docViewBottom = docViewTop + $(window).height();
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var elemTop = $(element).offset().top;
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var elemBottom = elemTop + $(element).height();
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return ((elemBottom <= docViewBottom) && (elemTop >= docViewTop));
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}
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})(jQuery, Drupal);
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