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/**
* @file
* User permission page behaviors.
*/
(function ($, Drupal, debounce) {
/**
* Shows checked and disabled checkboxes for inherited permissions.
*
* @type {Drupal~behavior}
*
* @prop {Drupal~behaviorAttach} attach
* Attaches functionality to the permissions table.
*/
Drupal.behaviors.permissions = {
attach() {
const [table] = once('permissions', 'table#permissions');
if (!table) {
return;
}
// Create fake checkboxes. We use fake checkboxes instead of reusing
// the existing checkboxes here because new checkboxes don't alter the
// submitted form. If we'd automatically check existing checkboxes, the
// permission table would be polluted with redundant entries. This is
// deliberate, but desirable when we automatically check them.
const $fakeCheckbox = $(Drupal.theme('checkbox'))
.removeClass('form-checkbox')
.addClass('fake-checkbox js-fake-checkbox')
.attr({
disabled: 'disabled',
checked: 'checked',
title: Drupal.t(
'This permission is inherited from the authenticated user role.',
),
});
const $wrapper = $('<div></div>').append($fakeCheckbox);
const fakeCheckboxHtml = $wrapper.html();
/**
* Process each table row to create fake checkboxes.
*
* @param {object} object
* @param {HTMLElement} object.target
*/
function tableRowProcessing({ target }) {
once('permission-checkbox', target).forEach((checkbox) => {
checkbox
.closest('tr')
.querySelectorAll(
'input[type="checkbox"]:not(.js-rid-anonymous, .js-rid-authenticated)',
)
.forEach((check) => {
check.classList.add('real-checkbox', 'js-real-checkbox');
check.insertAdjacentHTML('beforebegin', fakeCheckboxHtml);
});
});
}
// An IntersectionObserver object is associated with each of the table
// rows to activate checkboxes interactively as users scroll the page
// up or down. This prevents processing all checkboxes on page load.
const checkedCheckboxObserver = new IntersectionObserver(
(entries, thisObserver) => {
entries
.filter((entry) => entry.isIntersecting)
.forEach((entry) => {
tableRowProcessing(entry);
thisObserver.unobserve(entry.target);
});
},
{
rootMargin: '50%',
},
);
// Select rows with checked authenticated role and attach an observer
// to each.
table
.querySelectorAll(
'tbody tr input[type="checkbox"].js-rid-authenticated:checked',
)
.forEach((checkbox) => checkedCheckboxObserver.observe(checkbox));
// Create checkboxes only when necessary on click.
$(table).on(
'click.permissions',
'input[type="checkbox"].js-rid-authenticated',
tableRowProcessing,
);
},
};
/**
* Filters the permission list table by a text input search string.
*
* Text search input: input.table-filter-text
* Target table: input.table-filter-text[data-table]
* Source text: .table-filter-text-source
*
* @type {Drupal~behavior}
*/
Drupal.behaviors.tableFilterByText = {
attach(context, settings) {
const [input] = once('table-filter-text', 'input.table-filter-text');
if (!input) {
return;
}
const tableSelector = input.getAttribute('data-table');
const $table = $(tableSelector);
const $rows = $table.find('tbody tr');
function hideEmptyPermissionHeader(index, row) {
const tdsWithModuleClass = row.querySelectorAll('td.module');
// Function to check if an element is visible (`display: block`).
function isVisible(element) {
return getComputedStyle(element).display !== 'none';
}
if (tdsWithModuleClass.length > 0) {
// Find the next visible sibling `<tr>`.
let nextVisibleSibling = row.nextElementSibling;
while (nextVisibleSibling && !isVisible(nextVisibleSibling)) {
nextVisibleSibling = nextVisibleSibling.nextElementSibling;
}
// Check if the next visible sibling has the "module" class in any of
// its `<td>` elements.
let nextVisibleSiblingHasModuleClass = false;
if (nextVisibleSibling) {
const nextSiblingTdsWithModuleClass =
nextVisibleSibling.querySelectorAll('td.module');
nextVisibleSiblingHasModuleClass =
nextSiblingTdsWithModuleClass.length > 0;
}
// Check if this is the last visible row with class "module".
const isLastVisibleModuleRow =
!nextVisibleSibling || !isVisible(nextVisibleSibling);
// Hide the current row with class "module" if it meets the
// conditions.
$(row).toggle(
!nextVisibleSiblingHasModuleClass && !isLastVisibleModuleRow,
);
}
}
function filterPermissionList(e) {
const query = e.target.value;
if (query.length === 0) {
// Reset table when the textbox is cleared.
$rows.show();
}
// Case insensitive expression to find query at the beginning of a word.
const re = new RegExp(`\\b${query}`, 'i');
function showPermissionRow(index, row) {
const sources = row.querySelectorAll('.table-filter-text-source');
if (sources.length > 0) {
const textMatch = sources[0].textContent.search(re) !== -1;
$(row).closest('tr').toggle(textMatch);
}
}
// Search over all rows.
$rows.show();
// Filter if the length of the query is at least 2 characters.
if (query.length >= 2) {
$rows.each(showPermissionRow);
// Hide the empty header if they don't have any visible rows.
const visibleRows = $table.find('tbody tr:visible');
visibleRows.each(hideEmptyPermissionHeader);
const rowsWithoutEmptyModuleName = $table.find('tbody tr:visible');
// Find elements with class "permission" within visible rows.
const tdsWithModuleOrPermissionClass =
rowsWithoutEmptyModuleName.find('.permission');
Drupal.announce(
Drupal.formatPlural(
tdsWithModuleOrPermissionClass.length,
'1 permission is available in the modified list.',
'@count permissions are available in the modified list.',
),
);
}
}
function preventEnterKey(event) {
if (event.which === 13) {
event.preventDefault();
event.stopPropagation();
}
}
if ($table.length) {
$(input).on({
keyup: debounce(filterPermissionList, 200),
click: debounce(filterPermissionList, 200),
keydown: preventEnterKey,
});
}
},
};
})(jQuery, Drupal, Drupal.debounce);
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