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-/**
- * @file
- * Provide dragging capabilities to admin uis.
- */
-
-/**
- * Triggers when weights columns are toggled.
- *
- * @event columnschange
- */
-
-(function ($, Drupal, drupalSettings) {
- /**
- * Store the state of weight columns display for all tables.
- *
- * Default value is to hide weight columns.
- */
- let showWeight = JSON.parse(
- localStorage.getItem('Drupal.tableDrag.showWeight'),
- );
-
- /**
- * Drag and drop table rows with field manipulation.
- *
- * Using the drupal_attach_tabledrag() function, any table with weights or
- * parent relationships may be made into draggable tables. Columns containing
- * a field may optionally be hidden, providing a better user experience.
- *
- * Created tableDrag instances may be modified with custom behaviors by
- * overriding the .onDrag, .onDrop, .row.onSwap, and .row.onIndent methods.
- * See blocks.js for an example of adding additional functionality to
- * tableDrag.
- *
- * @type {Drupal~behavior}
- */
- Drupal.behaviors.tableDrag = {
- attach(context, settings) {
- function initTableDrag(table, base) {
- if (table.length) {
- // Create the new tableDrag instance. Save in the Drupal variable
- // to allow other scripts access to the object.
- Drupal.tableDrag[base] = new Drupal.tableDrag(
- table[0],
- settings.tableDrag[base],
- );
- }
- }
-
- Object.keys(settings.tableDrag || {}).forEach((base) => {
- initTableDrag($(once('tabledrag', `#${base}`, context)), base);
- });
- },
- };
-
- /**
- * Provides table and field manipulation.
- *
- * @constructor
- *
- * @param {HTMLElement} table
- * DOM object for the table to be made draggable.
- * @param {object} tableSettings
- * Settings for the table added via drupal_add_dragtable().
- */
- Drupal.tableDrag = function (table, tableSettings) {
- const self = this;
- const $table = $(table);
-
- /**
- * @type {jQuery}
- */
- this.$table = $(table);
-
- /**
- *
- * @type {HTMLElement}
- */
- this.table = table;
-
- /**
- * @type {object}
- */
- this.tableSettings = tableSettings;
-
- /**
- * Used to hold information about a current drag operation.
- *
- * @type {?HTMLElement}
- */
- this.dragObject = null;
-
- /**
- * Provides operations for row manipulation.
- *
- * @type {?HTMLElement}
- */
- this.rowObject = null;
-
- /**
- * Remember the previous element.
- *
- * @type {?HTMLElement}
- */
- this.oldRowElement = null;
-
- /**
- * Used to determine up or down direction from last mouse move.
- *
- * @type {?number}
- */
- this.oldY = null;
-
- /**
- * Whether anything in the entire table has changed.
- *
- * @type {bool}
- */
- this.changed = false;
-
- /**
- * Maximum amount of allowed parenting.
- *
- * @type {number}
- */
- this.maxDepth = 0;
-
- /**
- * Direction of the table.
- *
- * @type {number}
- */
- this.rtl = $(this.table).css('direction') === 'rtl' ? -1 : 1;
-
- /**
- *
- * @type {bool}
- */
- this.striping = $(this.table).data('striping') === 1;
-
- /**
- * Configure the scroll settings.
- *
- * @type {object}
- *
- * @prop {number} amount
- * @prop {number} interval
- * @prop {number} trigger
- */
- this.scrollSettings = { amount: 4, interval: 50, trigger: 70 };
-
- /**
- *
- * @type {?number}
- */
- this.scrollInterval = null;
-
- /**
- *
- * @type {number}
- */
- this.scrollY = 0;
-
- /**
- *
- * @type {number}
- */
- this.windowHeight = 0;
-
- /**
- * @type {?jQuery}
- */
- this.$toggleWeightButton = null;
-
- /**
- * Check this table's settings for parent relationships.
- *
- * For efficiency, large sections of code can be skipped if we don't need to
- * track horizontal movement and indentations.
- *
- * @type {bool}
- */
- this.indentEnabled = false;
- Object.keys(tableSettings || {}).forEach((group) => {
- Object.keys(tableSettings[group] || {}).forEach((n) => {
- if (tableSettings[group][n].relationship === 'parent') {
- this.indentEnabled = true;
- }
- if (tableSettings[group][n].limit > 0) {
- this.maxDepth = tableSettings[group][n].limit;
- }
- });
- });
- if (this.indentEnabled) {
- /**
- * Total width of indents, set in makeDraggable.
- *
- * @type {number}
- */
- this.indentCount = 1;
- // Find the width of indentations to measure mouse movements against.
- // Because the table doesn't need to start with any indentations, we
- // manually append 2 indentations in the first draggable row, measure
- // the offset, then remove.
- const indent = Drupal.theme('tableDragIndentation');
- const testRow = $('<tr></tr>').addClass('draggable').appendTo(table);
- const testCell = $('<td></td>')
- .appendTo(testRow)
- .prepend(indent)
- .prepend(indent);
- const $indentation = testCell.find('.js-indentation');
-
- /**
- *
- * @type {number}
- */
- this.indentAmount =
- $indentation.get(1).offsetLeft - $indentation.get(0).offsetLeft;
- testRow.remove();
- }
-
- // Make each applicable row draggable.
- // Match immediate children of the parent element to allow nesting.
- $table.find('> tr.draggable, > tbody > tr.draggable').each(function () {
- self.makeDraggable(this);
- });
-
- const $toggleWeightWrapper = $(Drupal.theme('tableDragToggle'));
- this.$toggleWeightButton = $toggleWeightWrapper.find(
- '[data-drupal-selector="tabledrag-toggle-weight"]',
- );
- this.$toggleWeightButton.on(
- 'click',
- $.proxy(function (e) {
- e.preventDefault();
- this.toggleColumns();
- }, this),
- );
- $table.before($toggleWeightWrapper);
-
- // Initialize the specified columns (for example, weight or parent columns)
- // to show or hide according to user preference. This aids accessibility
- // so that, e.g., screen reader users can choose to enter weight values and
- // manipulate form elements directly, rather than using drag-and-drop..
- self.initColumns();
-
- // Add event bindings to the document. The self variable is passed along
- // as event handlers do not have direct access to the tableDrag object.
- $(document).on('touchmove', (event) =>
- self.dragRow(event.originalEvent.touches[0], self),
- );
- $(document).on('touchend', (event) =>
- self.dropRow(event.originalEvent.touches[0], self),
- );
- $(document).on('mousemove pointermove', (event) =>
- self.dragRow(event, self),
- );
- $(document).on('mouseup pointerup', (event) => self.dropRow(event, self));
-
- // React to localStorage event showing or hiding weight columns.
- $(window).on(
- 'storage',
- $.proxy(function (e) {
- // Only react to 'Drupal.tableDrag.showWeight' value change.
- if (e.originalEvent.key === 'Drupal.tableDrag.showWeight') {
- // This was changed in another window, get the new value for this
- // window.
- showWeight = JSON.parse(e.originalEvent.newValue);
- this.displayColumns(showWeight);
- }
- }, this),
- );
- };
-
- /**
- * Initialize columns containing form elements to be hidden by default.
- *
- * Identify and mark each cell with a CSS class so we can easily toggle
- * show/hide it. Finally, hide columns if user does not have a
- * 'Drupal.tableDrag.showWeight' localStorage value.
- */
- Drupal.tableDrag.prototype.initColumns = function () {
- const $table = this.$table;
- let hidden;
- let cell;
- let columnIndex;
- Object.keys(this.tableSettings || {}).forEach((group) => {
- // Find the first field in this group.
- Object.keys(this.tableSettings[group]).some((tableSetting) => {
- const field = $table
- .find(`.${this.tableSettings[group][tableSetting].target}`)
- .eq(0);
- if (field.length && this.tableSettings[group][tableSetting].hidden) {
- hidden = this.tableSettings[group][tableSetting].hidden;
- cell = field.closest('td');
- return true;
- }
- return false;
- });
-
- // Mark the column containing this field so it can be hidden.
- if (hidden && cell[0]) {
- // Add 1 to our indexes. The nth-child selector is 1 based, not 0
- // based. Match immediate children of the parent element to allow
- // nesting.
- columnIndex = cell.parent().find('> td').index(cell.get(0)) + 1;
- $table
- .find('> thead > tr, > tbody > tr, > tr')
- .each(this.addColspanClass(columnIndex));
- }
- });
- this.displayColumns(showWeight);
- };
-
- /**
- * Mark cells that have colspan.
- *
- * In order to adjust the colspan instead of hiding them altogether.
- *
- * @param {number} columnIndex
- * The column index to add colspan class to.
- *
- * @return {function}
- * Function to add colspan class.
- */
- Drupal.tableDrag.prototype.addColspanClass = function (columnIndex) {
- return function () {
- // Get the columnIndex and adjust for any colspans in this row.
- const $row = $(this);
- let index = columnIndex;
- const cells = $row.children();
- let cell;
- cells.each(function (n) {
- if (n < index && this.colSpan && this.colSpan > 1) {
- index -= this.colSpan - 1;
- }
- });
- if (index > 0) {
- cell = cells.filter(`:nth-child(${index})`);
- if (cell[0].colSpan && cell[0].colSpan > 1) {
- // If this cell has a colspan, mark it so we can reduce the colspan.
- cell.addClass('tabledrag-has-colspan');
- } else {
- // Mark this cell so we can hide it.
- cell.addClass('tabledrag-hide');
- }
- }
- };
- };
-
- /**
- * Hide or display weight columns. Triggers an event on change.
- *
- * @fires event:columnschange
- *
- * @param {bool} displayWeight
- * 'true' will show weight columns.
- */
- Drupal.tableDrag.prototype.displayColumns = function (displayWeight) {
- if (displayWeight) {
- this.showColumns();
- }
- // Default action is to hide columns.
- else {
- this.hideColumns();
- }
-
- this.$toggleWeightButton.html(
- Drupal.theme('toggleButtonContent', displayWeight),
- );
-
- // Trigger an event to allow other scripts to react to this display change.
- // Force the extra parameter as a bool.
- $(once.filter('tabledrag', 'table')).trigger(
- 'columnschange',
- !!displayWeight,
- );
- };
-
- /**
- * Toggle the weight column depending on 'showWeight' value.
- *
- * Store only default override.
- */
- Drupal.tableDrag.prototype.toggleColumns = function () {
- showWeight = !showWeight;
- this.displayColumns(showWeight);
- if (showWeight) {
- // Save default override.
- localStorage.setItem('Drupal.tableDrag.showWeight', showWeight);
- } else {
- // Reset the value to its default.
- localStorage.removeItem('Drupal.tableDrag.showWeight');
- }
- };
-
- /**
- * Hide the columns containing weight/parent form elements.
- *
- * Undo showColumns().
- */
- Drupal.tableDrag.prototype.hideColumns = function () {
- const $tables = $(once.filter('tabledrag', 'table'));
- // Hide weight/parent cells and headers.
- $tables.find('.tabledrag-hide').css('display', 'none');
- // Show TableDrag handles.
- $tables.find('.tabledrag-handle').css('display', '');
- // Reduce the colspan of any effected multi-span columns.
- $tables.find('.tabledrag-has-colspan').each(function () {
- this.colSpan -= 1;
- });
- };
-
- /**
- * Show the columns containing weight/parent form elements.
- *
- * Undo hideColumns().
- */
- Drupal.tableDrag.prototype.showColumns = function () {
- const $tables = $(once.filter('tabledrag', 'table'));
- // Show weight/parent cells and headers.
- $tables.find('.tabledrag-hide').css('display', '');
- // Hide TableDrag handles.
- $tables.find('.tabledrag-handle').css('display', 'none');
- // Increase the colspan for any columns where it was previously reduced.
- $tables.find('.tabledrag-has-colspan').each(function () {
- this.colSpan += 1;
- });
- };
-
- /**
- * Find the target used within a particular row and group.
- *
- * @param {string} group
- * Group selector.
- * @param {HTMLElement} row
- * The row HTML element.
- *
- * @return {object}
- * The table row settings.
- */
- Drupal.tableDrag.prototype.rowSettings = function (group, row) {
- const field = $(row).find(`.${group}`);
- const tableSettingsGroup = this.tableSettings[group];
- return Object.keys(tableSettingsGroup)
- .map((delta) => {
- const targetClass = tableSettingsGroup[delta].target;
- let rowSettings;
- if (field.is(`.${targetClass}`)) {
- // Return a copy of the row settings.
- rowSettings = {};
- Object.keys(tableSettingsGroup[delta]).forEach((n) => {
- rowSettings[n] = tableSettingsGroup[delta][n];
- });
- }
- return rowSettings;
- })
- .filter((rowSetting) => rowSetting)[0];
- };
-
- /**
- * Take an item and add event handlers to make it become draggable.
- *
- * @param {HTMLElement} item
- * The item to add event handlers to.
- */
- Drupal.tableDrag.prototype.makeDraggable = function (item) {
- const self = this;
- const $item = $(item);
- // Add a class to the title link.
- $item.find('td:first-of-type').find('a').addClass('menu-item__link');
- // Create the handle.
- const $handle = $(Drupal.theme('tableDragHandle'));
- // Insert the handle after indentations (if any).
- const $indentationLast = $item
- .find('td:first-of-type')
- .find('.js-indentation')
- .eq(-1);
- if ($indentationLast.length) {
- $indentationLast.after($handle);
- // Update the total width of indentation in this entire table.
- self.indentCount = Math.max(
- $item.find('.js-indentation').length,
- self.indentCount,
- );
- } else {
- $item.find('td').eq(0).prepend($handle);
- }
-
- $handle.on('mousedown touchstart pointerdown', (event) => {
- event.preventDefault();
- if (event.originalEvent.type === 'touchstart') {
- event = event.originalEvent.touches[0];
- }
- self.dragStart(event, self, item);
- });
-
- // Prevent the anchor tag from jumping us to the top of the page.
- $handle.on('click', (e) => {
- e.preventDefault();
- });
-
- // Set blur cleanup when a handle is focused.
- $handle.on('focus', () => {
- self.safeBlur = true;
- });
-
- // On blur, fire the same function as a touchend/mouseup. This is used to
- // update values after a row has been moved through the keyboard support.
- $handle.on('blur', (event) => {
- if (self.rowObject && self.safeBlur) {
- self.dropRow(event, self);
- }
- });
-
- // Add arrow-key support to the handle.
- $handle.on('keydown', (event) => {
- // If a rowObject doesn't yet exist and this isn't the tab key.
- if (event.keyCode !== 9 && !self.rowObject) {
- self.rowObject = new self.row(
- item,
- 'keyboard',
- self.indentEnabled,
- self.maxDepth,
- true,
- );
- }
-
- let keyChange = false;
- let groupHeight;
-
- /* eslint-disable no-fallthrough */
-
- switch (event.keyCode) {
- // Left arrow.
- case 37:
- // Safari left arrow.
- case 63234:
- keyChange = true;
- self.rowObject.indent(-1 * self.rtl);
- break;
-
- // Up arrow.
- case 38:
- // Safari up arrow.
- case 63232: {
- let $previousRow = $(self.rowObject.element).prev('tr').eq(0);
- let previousRow = $previousRow.get(0);
- while (previousRow && $previousRow.is(':hidden')) {
- $previousRow = $(previousRow).prev('tr').eq(0);
- previousRow = $previousRow.get(0);
- }
- if (previousRow) {
- // Do not allow the onBlur cleanup.
- self.safeBlur = false;
- self.rowObject.direction = 'up';
- keyChange = true;
-
- if ($(item).is('.tabledrag-root')) {
- // Swap with the previous top-level row.
- groupHeight = 0;
- while (
- previousRow &&
- $previousRow.find('.js-indentation').length
- ) {
- $previousRow = $(previousRow).prev('tr').eq(0);
- previousRow = $previousRow.get(0);
- groupHeight += $previousRow.is(':hidden')
- ? 0
- : previousRow.offsetHeight;
- }
- if (previousRow) {
- self.rowObject.swap('before', previousRow);
- // No need to check for indentation, 0 is the only valid one.
- window.scrollBy(0, -groupHeight);
- }
- } else if (
- self.table.tBodies[0].rows[0] !== previousRow ||
- $previousRow.is('.draggable')
- ) {
- // Swap with the previous row (unless previous row is the first
- // one and undraggable).
- self.rowObject.swap('before', previousRow);
- self.rowObject.interval = null;
- self.rowObject.indent(0);
- window.scrollBy(0, -parseInt(item.offsetHeight, 10));
- }
- // Regain focus after the DOM manipulation.
- $handle.trigger('focus');
- }
- break;
- }
- // Right arrow.
- case 39:
- // Safari right arrow.
- case 63235:
- keyChange = true;
- self.rowObject.indent(self.rtl);
- break;
-
- // Down arrow.
- case 40:
- // Safari down arrow.
- case 63233: {
- let $nextRow = $(self.rowObject.group).eq(-1).next('tr').eq(0);
- let nextRow = $nextRow.get(0);
- while (nextRow && $nextRow.is(':hidden')) {
- $nextRow = $(nextRow).next('tr').eq(0);
- nextRow = $nextRow.get(0);
- }
- if (nextRow) {
- // Do not allow the onBlur cleanup.
- self.safeBlur = false;
- self.rowObject.direction = 'down';
- keyChange = true;
-
- if ($(item).is('.tabledrag-root')) {
- // Swap with the next group (necessarily a top-level one).
- groupHeight = 0;
- const nextGroup = new self.row(
- nextRow,
- 'keyboard',
- self.indentEnabled,
- self.maxDepth,
- false,
- );
- if (nextGroup) {
- $(nextGroup.group).each(function () {
- groupHeight += $(this).is(':hidden') ? 0 : this.offsetHeight;
- });
- const nextGroupRow = $(nextGroup.group).eq(-1).get(0);
- self.rowObject.swap('after', nextGroupRow);
- // No need to check for indentation, 0 is the only valid one.
- window.scrollBy(0, parseInt(groupHeight, 10));
- }
- } else {
- // Swap with the next row.
- self.rowObject.swap('after', nextRow);
- self.rowObject.interval = null;
- self.rowObject.indent(0);
- window.scrollBy(0, parseInt(item.offsetHeight, 10));
- }
- // Regain focus after the DOM manipulation.
- $handle.trigger('focus');
- }
- break;
- }
- }
-
- /* eslint-enable no-fallthrough */
-
- if (self.rowObject && self.rowObject.changed === true) {
- $(item).addClass('drag');
- if (self.oldRowElement) {
- $(self.oldRowElement).removeClass('drag-previous');
- }
- self.oldRowElement = item;
- if (self.striping === true) {
- self.restripeTable();
- }
- self.onDrag();
- }
-
- // Returning false if we have an arrow key to prevent scrolling.
- if (keyChange) {
- return false;
- }
- });
-
- // Compatibility addition, return false on keypress to prevent unwanted
- // scrolling. IE and Safari will suppress scrolling on keydown, but all
- // other browsers need to return false on keypress.
- // http://www.quirksmode.org/js/keys.html
- $handle.on('keypress', (event) => {
- /* eslint-disable no-fallthrough */
-
- switch (event.keyCode) {
- // Left arrow.
- case 37:
- // Up arrow.
- case 38:
- // Right arrow.
- case 39:
- // Down arrow.
- case 40:
- return false;
- }
-
- /* eslint-enable no-fallthrough */
- });
- };
-
- /**
- * Pointer event initiator, creates drag object and information.
- *
- * @param {jQuery.Event} event
- * The event object that trigger the drag.
- * @param {Drupal.tableDrag} self
- * The drag handle.
- * @param {HTMLElement} item
- * The item that is being dragged.
- */
- Drupal.tableDrag.prototype.dragStart = function (event, self, item) {
- // Create a new dragObject recording the pointer information.
- self.dragObject = {};
- self.dragObject.initOffset = self.getPointerOffset(item, event);
- self.dragObject.initPointerCoords = self.pointerCoords(event);
- if (self.indentEnabled) {
- self.dragObject.indentPointerPos = self.dragObject.initPointerCoords;
- }
-
- // If there's a lingering row object from the keyboard, remove its focus.
- if (self.rowObject) {
- $(self.rowObject.element).find('a.tabledrag-handle').trigger('blur');
- }
-
- // Create a new rowObject for manipulation of this row.
- self.rowObject = new self.row(
- item,
- 'pointer',
- self.indentEnabled,
- self.maxDepth,
- true,
- );
-
- // Save the position of the table.
- self.table.topY = $(self.table).offset().top;
- self.table.bottomY = self.table.topY + self.table.offsetHeight;
-
- // Add classes to the handle and row.
- $(item).addClass('drag');
-
- // Set the document to use the move cursor during drag.
- $('body').addClass('drag');
- if (self.oldRowElement) {
- $(self.oldRowElement).removeClass('drag-previous');
- }
-
- // Set the initial y coordinate so the direction can be calculated in
- // dragRow().
- self.oldY = self.pointerCoords(event).y;
- };
-
- /**
- * Pointer movement handler, bound to document.
- *
- * @param {jQuery.Event} event
- * The pointer event.
- * @param {Drupal.tableDrag} self
- * The tableDrag instance.
- *
- * @return {bool|undefined}
- * Undefined if no dragObject is defined, false otherwise.
- */
- Drupal.tableDrag.prototype.dragRow = function (event, self) {
- if (self.dragObject) {
- self.currentPointerCoords = self.pointerCoords(event);
- const y = self.currentPointerCoords.y - self.dragObject.initOffset.y;
- const x = self.currentPointerCoords.x - self.dragObject.initOffset.x;
-
- // Check for row swapping and vertical scrolling.
- if (y !== self.oldY) {
- self.rowObject.direction = y > self.oldY ? 'down' : 'up';
- // Update the old value.
- self.oldY = y;
- // Check if the window should be scrolled (and how fast).
- const scrollAmount = self.checkScroll(self.currentPointerCoords.y);
- // Stop any current scrolling.
- clearInterval(self.scrollInterval);
- // Continue scrolling if the mouse has moved in the scroll direction.
- if (
- (scrollAmount > 0 && self.rowObject.direction === 'down') ||
- (scrollAmount < 0 && self.rowObject.direction === 'up')
- ) {
- self.setScroll(scrollAmount);
- }
-
- // If we have a valid target, perform the swap and restripe the table.
- const currentRow = self.findDropTargetRow(x, y);
- if (currentRow) {
- if (self.rowObject.direction === 'down') {
- self.rowObject.swap('after', currentRow, self);
- } else {
- self.rowObject.swap('before', currentRow, self);
- }
- if (self.striping === true) {
- self.restripeTable();
- }
- }
- }
-
- // Similar to row swapping, handle indentations.
- if (self.indentEnabled) {
- const xDiff =
- self.currentPointerCoords.x - self.dragObject.indentPointerPos.x;
- // Set the number of indentations the pointer has been moved left or
- // right.
- const indentDiff = Math.round(xDiff / self.indentAmount);
- // Indent the row with our estimated diff, which may be further
- // restricted according to the rows around this row.
- const indentChange = self.rowObject.indent(indentDiff);
- // Update table and pointer indentations.
- self.dragObject.indentPointerPos.x +=
- self.indentAmount * indentChange * self.rtl;
- self.indentCount = Math.max(self.indentCount, self.rowObject.indents);
- }
-
- return false;
- }
- };
-
- /**
- * Pointerup behavior.
- *
- * @param {jQuery.Event} event
- * The pointer event.
- * @param {Drupal.tableDrag} self
- * The tableDrag instance.
- */
- Drupal.tableDrag.prototype.dropRow = function (event, self) {
- let droppedRow;
- let $droppedRow;
-
- // Drop row functionality.
- if (self.rowObject !== null) {
- droppedRow = self.rowObject.element;
- $droppedRow = $(droppedRow);
- // The row is already in the right place so we just release it.
- if (self.rowObject.changed === true) {
- // Update the fields in the dropped row.
- self.updateFields(droppedRow);
-
- // If a setting exists for affecting the entire group, update all the
- // fields in the entire dragged group.
- Object.keys(self.tableSettings || {}).forEach((group) => {
- const rowSettings = self.rowSettings(group, droppedRow);
- if (rowSettings.relationship === 'group') {
- Object.keys(self.rowObject.children || {}).forEach((n) => {
- self.updateField(self.rowObject.children[n], group);
- });
- }
- });
-
- self.rowObject.markChanged();
- if (self.changed === false) {
- $(Drupal.theme('tableDragChangedWarning'))
- .insertBefore(self.table)
- .hide()
- .fadeIn('slow');
- self.changed = true;
- }
- }
-
- if (self.indentEnabled) {
- self.rowObject.removeIndentClasses();
- }
- if (self.oldRowElement) {
- $(self.oldRowElement).removeClass('drag-previous');
- }
- $droppedRow.removeClass('drag').addClass('drag-previous');
- self.oldRowElement = droppedRow;
- self.onDrop();
- self.rowObject = null;
- }
-
- // Functionality specific only to pointerup events.
- if (self.dragObject !== null) {
- self.dragObject = null;
- $('body').removeClass('drag');
- clearInterval(self.scrollInterval);
- }
- };
-
- /**
- * Get the coordinates from the event (allowing for browser differences).
- *
- * @param {jQuery.Event} event
- * The pointer event.
- *
- * @return {object}
- * An object with `x` and `y` keys indicating the position.
- */
- Drupal.tableDrag.prototype.pointerCoords = function (event) {
- if (event.pageX || event.pageY) {
- return { x: event.pageX, y: event.pageY };
- }
- return {
- x: event.clientX + document.body.scrollLeft - document.body.clientLeft,
- y: event.clientY + document.body.scrollTop - document.body.clientTop,
- };
- };
-
- /**
- * Get the event offset from the target element.
- *
- * Given a target element and a pointer event, get the event offset from that
- * element. To do this we need the element's position and the target position.
- *
- * @param {HTMLElement} target
- * The target HTML element.
- * @param {jQuery.Event} event
- * The pointer event.
- *
- * @return {object}
- * An object with `x` and `y` keys indicating the position.
- */
- Drupal.tableDrag.prototype.getPointerOffset = function (target, event) {
- const docPos = $(target).offset();
- const pointerPos = this.pointerCoords(event);
- return { x: pointerPos.x - docPos.left, y: pointerPos.y - docPos.top };
- };
-
- /**
- * Find the row the mouse is currently over.
- *
- * This row is then taken and swapped with the one being dragged.
- *
- * @param {number} x
- * The x coordinate of the mouse on the page (not the screen).
- * @param {number} y
- * The y coordinate of the mouse on the page (not the screen).
- *
- * @return {*}
- * The drop target row, if found.
- */
- Drupal.tableDrag.prototype.findDropTargetRow = function (x, y) {
- const rows = $(this.table.tBodies[0].rows).not(':hidden');
- for (let n = 0; n < rows.length; n++) {
- let row = rows[n];
- let $row = $(row);
- const rowY = $row.offset().top;
- let rowHeight;
- // Because Safari does not report offsetHeight on table rows, but does on
- // table cells, grab the firstChild of the row and use that instead.
- // http://jacob.peargrove.com/blog/2006/technical/table-row-offsettop-bug-in-safari.
- if (row.offsetHeight === 0) {
- rowHeight = parseInt(row.firstChild.offsetHeight, 10) / 2;
- }
- // Other browsers.
- else {
- rowHeight = parseInt(row.offsetHeight, 10) / 2;
- }
-
- // Because we always insert before, we need to offset the height a bit.
- if (y > rowY - rowHeight && y < rowY + rowHeight) {
- if (this.indentEnabled) {
- // Check that this row is not a child of the row being dragged.
- if (
- Object.keys(this.rowObject.group).some(
- (o) => this.rowObject.group[o] === row,
- )
- ) {
- return null;
- }
- }
- // Do not allow a row to be swapped with itself.
- else if (row === this.rowObject.element) {
- return null;
- }
-
- // Check that swapping with this row is allowed.
- if (!this.rowObject.isValidSwap(row)) {
- return null;
- }
-
- // We may have found the row the mouse just passed over, but it doesn't
- // take into account hidden rows. Skip backwards until we find a
- // draggable row.
- while ($row.is(':hidden') && $row.prev('tr').is(':hidden')) {
- $row = $row.prev('tr:first-of-type');
- row = $row.get(0);
- }
- return row;
- }
- }
- return null;
- };
-
- /**
- * After the row is dropped, update the table fields.
- *
- * @param {HTMLElement} changedRow
- * DOM object for the row that was just dropped.
- */
- Drupal.tableDrag.prototype.updateFields = function (changedRow) {
- Object.keys(this.tableSettings || {}).forEach((group) => {
- // Each group may have a different setting for relationship, so we find
- // the source rows for each separately.
- this.updateField(changedRow, group);
- });
- };
-
- /**
- * After the row is dropped, update a single table field.
- *
- * @param {HTMLElement} changedRow
- * DOM object for the row that was just dropped.
- * @param {string} group
- * The settings group on which field updates will occur.
- */
- Drupal.tableDrag.prototype.updateField = function (changedRow, group) {
- let rowSettings = this.rowSettings(group, changedRow);
- const $changedRow = $(changedRow);
- let sourceRow;
- let $previousRow;
- let previousRow;
- let useSibling;
- // Set the row as its own target.
- if (
- rowSettings.relationship === 'self' ||
- rowSettings.relationship === 'group'
- ) {
- sourceRow = changedRow;
- }
- // Siblings are easy, check previous and next rows.
- else if (rowSettings.relationship === 'sibling') {
- $previousRow = $changedRow.prev('tr:first-of-type');
- previousRow = $previousRow.get(0);
- const $nextRow = $changedRow.next('tr:first-of-type');
- const nextRow = $nextRow.get(0);
- sourceRow = changedRow;
- if (
- $previousRow.is('.draggable') &&
- $previousRow.find(`.${group}`).length
- ) {
- if (this.indentEnabled) {
- if (
- $previousRow.find('.js-indentations').length ===
- $changedRow.find('.js-indentations').length
- ) {
- sourceRow = previousRow;
- }
- } else {
- sourceRow = previousRow;
- }
- } else if (
- $nextRow.is('.draggable') &&
- $nextRow.find(`.${group}`).length
- ) {
- if (this.indentEnabled) {
- if (
- $nextRow.find('.js-indentations').length ===
- $changedRow.find('.js-indentations').length
- ) {
- sourceRow = nextRow;
- }
- } else {
- sourceRow = nextRow;
- }
- }
- }
- // Parents, look up the tree until we find a field not in this group.
- // Go up as many parents as indentations in the changed row.
- else if (rowSettings.relationship === 'parent') {
- $previousRow = $changedRow.prev('tr');
- previousRow = $previousRow;
- while (
- $previousRow.length &&
- $previousRow.find('.js-indentation').length >= this.rowObject.indents
- ) {
- $previousRow = $previousRow.prev('tr');
- previousRow = $previousRow;
- }
- // If we found a row.
- if ($previousRow.length) {
- sourceRow = $previousRow.get(0);
- }
- // Otherwise we went all the way to the left of the table without finding
- // a parent, meaning this item has been placed at the root level.
- else {
- // Use the first row in the table as source, because it's guaranteed to
- // be at the root level. Find the first item, then compare this row
- // against it as a sibling.
- sourceRow = $(this.table).find('tr.draggable:first-of-type').get(0);
- if (sourceRow === this.rowObject.element) {
- sourceRow = $(this.rowObject.group[this.rowObject.group.length - 1])
- .next('tr.draggable')
- .get(0);
- }
- useSibling = true;
- }
- }
-
- // Because we may have moved the row from one category to another,
- // take a look at our sibling and borrow its sources and targets.
- this.copyDragClasses(sourceRow, changedRow, group);
- rowSettings = this.rowSettings(group, changedRow);
-
- // In the case that we're looking for a parent, but the row is at the top
- // of the tree, copy our sibling's values.
- if (useSibling) {
- rowSettings.relationship = 'sibling';
- rowSettings.source = rowSettings.target;
- }
-
- const targetClass = `.${rowSettings.target}`;
- const targetElement = $changedRow.find(targetClass).get(0);
-
- // Check if a target element exists in this row.
- if (targetElement) {
- const sourceClass = `.${rowSettings.source}`;
- const sourceElement = $(sourceClass, sourceRow).get(0);
- switch (rowSettings.action) {
- case 'depth':
- // Get the depth of the target row.
- targetElement.value = $(sourceElement)
- .closest('tr')
- .find('.js-indentation').length;
- break;
-
- case 'match':
- // Update the value.
- targetElement.value = sourceElement.value;
- break;
-
- case 'order': {
- const siblings = this.rowObject.findSiblings(rowSettings);
- if ($(targetElement).is('select')) {
- // Get a list of acceptable values.
- const values = [];
- $(targetElement)
- .find('option')
- .each(function () {
- values.push(this.value);
- });
- const maxVal = values[values.length - 1];
- // Populate the values in the siblings.
- $(siblings)
- .find(targetClass)
- .each(function () {
- // If there are more items than possible values, assign the
- // maximum value to the row.
- if (values.length > 0) {
- this.value = values.shift();
- } else {
- this.value = maxVal;
- }
- });
- } else {
- // Assume a numeric input field.
- let weight = 0;
- const $siblingTarget = $(siblings[0]).find(targetClass);
- if ($siblingTarget.length) {
- weight = parseInt($siblingTarget[0].value, 10) || 0;
- }
- $(siblings)
- .find(targetClass)
- .each(function () {
- this.value = weight;
- weight++;
- });
- }
- break;
- }
- }
- }
- };
-
- /**
- * Copy all tableDrag related classes from one row to another.
- *
- * Copy all special tableDrag classes from one row's form elements to a
- * different one, removing any special classes that the destination row
- * may have had.
- *
- * @param {HTMLElement} sourceRow
- * The element for the source row.
- * @param {HTMLElement} targetRow
- * The element for the target row.
- * @param {string} group
- * The group selector.
- */
- Drupal.tableDrag.prototype.copyDragClasses = function (
- sourceRow,
- targetRow,
- group,
- ) {
- const sourceElement = $(sourceRow).find(`.${group}`);
- const targetElement = $(targetRow).find(`.${group}`);
- if (sourceElement.length && targetElement.length) {
- targetElement[0].className = sourceElement[0].className;
- }
- };
-
- /**
- * Check the suggested scroll of the table.
- *
- * @param {number} cursorY
- * The Y position of the cursor.
- *
- * @return {number}
- * The suggested scroll.
- */
- Drupal.tableDrag.prototype.checkScroll = function (cursorY) {
- const de = document.documentElement;
- const b = document.body;
-
- const windowHeight =
- window.innerHeight ||
- (de.clientHeight && de.clientWidth !== 0
- ? de.clientHeight
- : b.offsetHeight);
- this.windowHeight = windowHeight;
- let scrollY;
- if (document.all) {
- scrollY = !de.scrollTop ? b.scrollTop : de.scrollTop;
- } else {
- scrollY = window.pageYOffset ? window.pageYOffset : window.scrollY;
- }
- this.scrollY = scrollY;
- const trigger = this.scrollSettings.trigger;
- let delta = 0;
-
- // Return a scroll speed relative to the edge of the screen.
- if (cursorY - scrollY > windowHeight - trigger) {
- delta = trigger / (windowHeight + scrollY - cursorY);
- delta = delta > 0 && delta < trigger ? delta : trigger;
- return delta * this.scrollSettings.amount;
- }
- if (cursorY - scrollY < trigger) {
- delta = trigger / (cursorY - scrollY);
- delta = delta > 0 && delta < trigger ? delta : trigger;
- return -delta * this.scrollSettings.amount;
- }
- };
-
- /**
- * Set the scroll for the table.
- *
- * @param {number} scrollAmount
- * The amount of scroll to apply to the window.
- */
- Drupal.tableDrag.prototype.setScroll = function (scrollAmount) {
- const self = this;
-
- this.scrollInterval = setInterval(() => {
- // Update the scroll values stored in the object.
- self.checkScroll(self.currentPointerCoords.y);
- const aboveTable = self.scrollY > self.table.topY;
- const belowTable = self.scrollY + self.windowHeight < self.table.bottomY;
- if (
- (scrollAmount > 0 && belowTable) ||
- (scrollAmount < 0 && aboveTable)
- ) {
- window.scrollBy(0, scrollAmount);
- }
- }, this.scrollSettings.interval);
- };
-
- /**
- * Command to restripe table properly.
- */
- Drupal.tableDrag.prototype.restripeTable = function () {
- // :even and :odd are reversed because jQuery counts from 0 and
- // we count from 1, so we're out of sync.
- // Match immediate children of the parent element to allow nesting.
- $(this.table)
- .find('> tbody > tr.draggable, > tr.draggable')
- .filter(':visible')
- .filter(':odd')
- .removeClass('odd')
- .addClass('even')
- .end()
- .filter(':even')
- .removeClass('even')
- .addClass('odd');
- };
-
- /**
- * Stub function. Allows a custom handler when a row begins dragging.
- *
- * @return {null}
- * Returns null when the stub function is used.
- */
- Drupal.tableDrag.prototype.onDrag = function () {
- return null;
- };
-
- /**
- * Stub function. Allows a custom handler when a row is dropped.
- *
- * @return {null}
- * Returns null when the stub function is used.
- */
- Drupal.tableDrag.prototype.onDrop = function () {
- return null;
- };
-
- /**
- * Constructor to make a new object to manipulate a table row.
- *
- * @param {HTMLElement} tableRow
- * The DOM element for the table row we will be manipulating.
- * @param {string} method
- * The method in which this row is being moved. Either 'keyboard' or
- * 'mouse'.
- * @param {bool} indentEnabled
- * Whether the containing table uses indentations. Used for optimizations.
- * @param {number} maxDepth
- * The maximum amount of indentations this row may contain.
- * @param {bool} addClasses
- * Whether we want to add classes to this row to indicate child
- * relationships.
- */
- Drupal.tableDrag.prototype.row = function (
- tableRow,
- method,
- indentEnabled,
- maxDepth,
- addClasses,
- ) {
- const $tableRow = $(tableRow);
-
- this.element = tableRow;
- this.method = method;
- this.group = [tableRow];
- this.groupDepth = $tableRow.find('.js-indentation').length;
- this.changed = false;
- this.table = $tableRow.closest('table')[0];
- this.indentEnabled = indentEnabled;
- this.maxDepth = maxDepth;
- // Direction the row is being moved.
- this.direction = '';
- if (this.indentEnabled) {
- this.indents = $tableRow.find('.js-indentation').length;
- this.children = this.findChildren(addClasses);
- this.group = this.group.concat(this.children);
- // Find the depth of this entire group.
- for (let n = 0; n < this.group.length; n++) {
- this.groupDepth = Math.max(
- $(this.group[n]).find('.js-indentation').length,
- this.groupDepth,
- );
- }
- }
- };
-
- /**
- * Find all children of rowObject by indentation.
- *
- * @param {bool} addClasses
- * Whether we want to add classes to this row to indicate child
- * relationships.
- *
- * @return {Array}
- * An array of children of the row.
- */
- Drupal.tableDrag.prototype.row.prototype.findChildren = function (
- addClasses,
- ) {
- const parentIndentation = this.indents;
- let currentRow = $(this.element, this.table).next('tr.draggable');
- const rows = [];
- let child = 0;
-
- function rowIndentation(indentNum, el) {
- const self = $(el);
- if (child === 1 && indentNum === parentIndentation) {
- self.addClass('tree-child-first');
- }
- if (indentNum === parentIndentation) {
- self.addClass('tree-child');
- } else if (indentNum > parentIndentation) {
- self.addClass('tree-child-horizontal');
- }
- }
-
- while (currentRow.length) {
- // A greater indentation indicates this is a child.
- if (currentRow.find('.js-indentation').length > parentIndentation) {
- child++;
- rows.push(currentRow[0]);
- if (addClasses) {
- currentRow.find('.js-indentation').each(rowIndentation);
- }
- } else {
- break;
- }
- currentRow = currentRow.next('tr.draggable');
- }
- if (addClasses && rows.length) {
- $(rows[rows.length - 1])
- .find(`.js-indentation:nth-child(${parentIndentation + 1})`)
- .addClass('tree-child-last');
- }
- return rows;
- };
-
- /**
- * Ensure that two rows are allowed to be swapped.
- *
- * @param {HTMLElement} row
- * DOM object for the row being considered for swapping.
- *
- * @return {bool}
- * Whether the swap is a valid swap or not.
- */
- Drupal.tableDrag.prototype.row.prototype.isValidSwap = function (row) {
- const $row = $(row);
- if (this.indentEnabled) {
- let prevRow;
- let nextRow;
- if (this.direction === 'down') {
- prevRow = row;
- nextRow = $row.next('tr').get(0);
- } else {
- prevRow = $row.prev('tr').get(0);
- nextRow = row;
- }
- this.interval = this.validIndentInterval(prevRow, nextRow);
-
- // We have an invalid swap if the valid indentations interval is empty.
- if (this.interval.min > this.interval.max) {
- return false;
- }
- }
-
- // Do not let an un-draggable first row have anything put before it.
- if (this.table.tBodies[0].rows[0] === row && $row.is(':not(.draggable)')) {
- return false;
- }
-
- return true;
- };
-
- /**
- * Perform the swap between two rows.
- *
- * @param {string} position
- * Whether the swap will occur 'before' or 'after' the given row.
- * @param {HTMLElement} row
- * DOM element what will be swapped with the row group.
- */
- Drupal.tableDrag.prototype.row.prototype.swap = function (position, row) {
- // Makes sure only DOM object are passed to Drupal.detachBehaviors().
- this.group.forEach((row) => {
- Drupal.detachBehaviors(row, drupalSettings, 'move');
- });
- $(row)[position](this.group);
- // Makes sure only DOM object are passed to Drupal.attachBehaviors()s.
- this.group.forEach((row) => {
- Drupal.attachBehaviors(row, drupalSettings);
- });
- this.changed = true;
- this.onSwap(row);
- };
-
- /**
- * Determine the valid indentations interval for the row at a given position.
- *
- * @param {?HTMLElement} prevRow
- * DOM object for the row before the tested position
- * (or null for first position in the table).
- * @param {?HTMLElement} nextRow
- * DOM object for the row after the tested position
- * (or null for last position in the table).
- *
- * @return {object}
- * An object with the keys `min` and `max` to indicate the valid indent
- * interval.
- */
- Drupal.tableDrag.prototype.row.prototype.validIndentInterval = function (
- prevRow,
- nextRow,
- ) {
- const $prevRow = $(prevRow);
- let maxIndent;
-
- // Minimum indentation:
- // Do not orphan the next row.
- const minIndent = nextRow ? $(nextRow).find('.js-indentation').length : 0;
-
- // Maximum indentation:
- if (
- !prevRow ||
- $prevRow.is(':not(.draggable)') ||
- $(this.element).is('.tabledrag-root')
- ) {
- // Do not indent:
- // - the first row in the table,
- // - rows dragged below a non-draggable row,
- // - 'root' rows.
- maxIndent = 0;
- } else {
- // Do not go deeper than as a child of the previous row.
- maxIndent =
- $prevRow.find('.js-indentation').length +
- ($prevRow.is('.tabledrag-leaf') ? 0 : 1);
- // Limit by the maximum allowed depth for the table.
- if (this.maxDepth) {
- maxIndent = Math.min(
- maxIndent,
- this.maxDepth - (this.groupDepth - this.indents),
- );
- }
- }
-
- return { min: minIndent, max: maxIndent };
- };
-
- /**
- * Indent a row within the legal bounds of the table.
- *
- * @param {number} indentDiff
- * The number of additional indentations proposed for the row (can be
- * positive or negative). This number will be adjusted to nearest valid
- * indentation level for the row.
- *
- * @return {number}
- * The number of indentations applied.
- */
- Drupal.tableDrag.prototype.row.prototype.indent = function (indentDiff) {
- const $group = $(this.group);
- // Determine the valid indentations interval if not available yet.
- if (!this.interval) {
- const prevRow = $(this.element).prev('tr').get(0);
- const nextRow = $group.eq(-1).next('tr').get(0);
- this.interval = this.validIndentInterval(prevRow, nextRow);
- }
-
- // Adjust to the nearest valid indentation.
- let indent = this.indents + indentDiff;
- indent = Math.max(indent, this.interval.min);
- indent = Math.min(indent, this.interval.max);
- indentDiff = indent - this.indents;
-
- for (let n = 1; n <= Math.abs(indentDiff); n++) {
- // Add or remove indentations.
- if (indentDiff < 0) {
- $group.find('.js-indentation:first-of-type').remove();
- this.indents--;
- } else {
- $group
- .find('td:first-of-type')
- .prepend(Drupal.theme('tableDragIndentation'));
- this.indents++;
- }
- }
- if (indentDiff) {
- // Update indentation for this row.
- this.changed = true;
- this.groupDepth += indentDiff;
- this.onIndent();
- }
-
- return indentDiff;
- };
-
- /**
- * Find all siblings for a row.
- *
- * According to its subgroup or indentation. Note that the passed-in row is
- * included in the list of siblings.
- *
- * @param {object} rowSettings
- * The field settings we're using to identify what constitutes a sibling.
- *
- * @return {Array}
- * An array of siblings.
- */
- Drupal.tableDrag.prototype.row.prototype.findSiblings = function (
- rowSettings,
- ) {
- const siblings = [];
- const directions = ['prev', 'next'];
- const rowIndentation = this.indents;
- let checkRowIndentation;
- for (let d = 0; d < directions.length; d++) {
- let checkRow = $(this.element)[directions[d]]();
- while (checkRow.length) {
- // Check that the sibling contains a similar target field.
- if (checkRow.find(`.${rowSettings.target}`)) {
- // Either add immediately if this is a flat table, or check to ensure
- // that this row has the same level of indentation.
- if (this.indentEnabled) {
- checkRowIndentation = checkRow.find('.js-indentation').length;
- }
-
- if (!this.indentEnabled || checkRowIndentation === rowIndentation) {
- siblings.push(checkRow[0]);
- } else if (checkRowIndentation < rowIndentation) {
- // No need to keep looking for siblings when we get to a parent.
- break;
- }
- } else {
- break;
- }
- checkRow = checkRow[directions[d]]();
- }
- // Since siblings are added in reverse order for previous, reverse the
- // completed list of previous siblings. Add the current row and continue.
- if (directions[d] === 'prev') {
- siblings.reverse();
- siblings.push(this.element);
- }
- }
- return siblings;
- };
-
- /**
- * Remove indentation helper classes from the current row group.
- */
- Drupal.tableDrag.prototype.row.prototype.removeIndentClasses = function () {
- Object.keys(this.children || {}).forEach((n) => {
- $(this.children[n])
- .find('.js-indentation')
- .removeClass('tree-child')
- .removeClass('tree-child-first')
- .removeClass('tree-child-last')
- .removeClass('tree-child-horizontal');
- });
- };
-
- /**
- * Add an asterisk or other marker to the changed row.
- */
- Drupal.tableDrag.prototype.row.prototype.markChanged = function () {
- const marker = Drupal.theme('tableDragChangedMarker');
- const cell = $(this.element).find('td:first-of-type');
- if (cell.find('abbr.tabledrag-changed').length === 0) {
- cell.append(marker);
- }
- };
-
- /**
- * Stub function. Allows a custom handler when a row is indented.
- *
- * @return {null}
- * Returns null when the stub function is used.
- */
- Drupal.tableDrag.prototype.row.prototype.onIndent = function () {
- return null;
- };
-
- /**
- * Stub function. Allows a custom handler when a row is swapped.
- *
- * @param {HTMLElement} swappedRow
- * The element for the swapped row.
- *
- * @return {null}
- * Returns null when the stub function is used.
- */
- Drupal.tableDrag.prototype.row.prototype.onSwap = function (swappedRow) {
- return null;
- };
-
- $.extend(
- Drupal.theme,
- /** @lends Drupal.theme */ {
- /**
- * @return {string}
- * Markup for the marker.
- */
- tableDragChangedMarker() {
- return `<abbr class="warning tabledrag-changed" title="${Drupal.t(
- 'Changed',
- )}">*</abbr>`;
- },
-
- /**
- * @return {string}
- * Markup for the indentation.
- */
- tableDragIndentation() {
- return '<div class="js-indentation indentation">&nbsp;</div>';
- },
-
- /**
- * @return {string}
- * Markup for the warning.
- */
- tableDragChangedWarning() {
- return `<div class="tabledrag-changed-warning messages messages--warning" role="alert">${Drupal.theme(
- 'tableDragChangedMarker',
- )} ${Drupal.t('You have unsaved changes.')}</div>`;
- },
-
- /**
- * The button for toggling table row weight visibility.
- *
- * @return {string}
- * HTML markup for the weight toggle button and its container.
- */
- tableDragToggle: () =>
- `<div class="tabledrag-toggle-weight-wrapper" data-drupal-selector="tabledrag-toggle-weight-wrapper">
- <button type="button" class="link tabledrag-toggle-weight" data-drupal-selector="tabledrag-toggle-weight"></button>
- </div>`,
-
- /**
- * The contents of the toggle weight button.
- *
- * @param {boolean} show
- * If the table weights are currently displayed.
- *
- * @return {string}
- * HTML markup for the weight toggle button content.s
- */
- toggleButtonContent: (show) =>
- show ? Drupal.t('Hide row weights') : Drupal.t('Show row weights'),
-
- /**
- * @return {string}
- * HTML markup for a tableDrag handle.
- */
- tableDragHandle() {
- return `<a href="#" title="${Drupal.t('Drag to re-order')}"
- class="tabledrag-handle"><div class="handle"></div></a>`;
- },
- },
- );
-})(jQuery, Drupal, drupalSettings);
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-03 11:36:26 +0000