118 lines
3.3 KiB
JavaScript
118 lines
3.3 KiB
JavaScript
/**
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* @file
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* Preview behaviors.
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*/
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(function ($, Drupal) {
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/**
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* Disables all non-relevant links in node previews.
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*
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* Destroys links (except local fragment identifiers such as href="#frag") in
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* node previews to prevent users from leaving the page.
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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 confirmation prompt for clicking links in node preview mode.
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* @prop {Drupal~behaviorDetach} detach
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* Detaches confirmation prompt for clicking links in node preview mode.
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*/
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Drupal.behaviors.nodePreviewDestroyLinks = {
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attach(context) {
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function clickPreviewModal(event) {
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// Only confirm leaving previews when left-clicking and user is not
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// pressing the ALT, CTRL, META (Command key on the Macintosh keyboard)
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// or SHIFT key.
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if (
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event.button === 0 &&
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!event.altKey &&
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!event.ctrlKey &&
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!event.metaKey &&
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!event.shiftKey
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) {
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event.preventDefault();
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const $previewDialog = $(
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`<div>${Drupal.theme('nodePreviewModal')}</div>`,
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).appendTo('body');
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const confirmationDialog = Drupal.dialog($previewDialog, {
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title: Drupal.t('Leave preview?'),
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buttons: [
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{
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text: Drupal.t('Cancel'),
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click() {
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confirmationDialog.close();
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},
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},
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{
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text: Drupal.t('Leave preview'),
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click() {
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window.top.location.href = event.currentTarget.href;
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},
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},
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],
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});
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confirmationDialog.showModal();
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}
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}
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if (!context.querySelector('.node-preview-container')) {
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return;
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}
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if (once('node-preview', 'html').length) {
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$(document).on(
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'click.preview',
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'a:not([href^="#"], .node-preview-container a)',
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clickPreviewModal,
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);
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}
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},
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detach(context, settings, trigger) {
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if (trigger === 'unload') {
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if (
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context.querySelector('.node-preview-container') &&
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once.remove('node-preview', 'html').length
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) {
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$(document).off('click.preview');
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}
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}
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},
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};
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/**
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* Switch view mode.
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*
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* @type {Drupal~behavior}
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*
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* @prop {Drupal~behaviorAttach} attach
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* Attaches automatic submit on `formUpdated.preview` events.
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*/
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Drupal.behaviors.nodePreviewSwitchViewMode = {
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attach(context) {
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const autosubmit = once(
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'autosubmit',
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'[data-drupal-autosubmit]',
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context,
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);
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if (autosubmit.length) {
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$(autosubmit).on('formUpdated.preview', function () {
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$(this.form).trigger('submit');
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});
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}
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},
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};
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/**
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* Theme function for node preview modal.
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*
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* @return {string}
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* Markup for the node preview modal.
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*/
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Drupal.theme.nodePreviewModal = function () {
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return `<p>${Drupal.t(
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'Leaving the preview will cause unsaved changes to be lost. Are you sure you want to leave the preview?',
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)}</p><small class="description">${Drupal.t(
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'CTRL+Left click will prevent this dialog from showing and proceed to the clicked link.',
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)}</small>`;
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};
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})(jQuery, Drupal);
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