1269 lines
46 KiB
JavaScript
1269 lines
46 KiB
JavaScript
(function ($, Drupal, drupalSettings) {
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"use strict";
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/**
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* Store the state of weight columns display for all tables.
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* Default value is to hide weight columns.
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*/
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var showWeight = JSON.parse(localStorage.getItem('Drupal.tableDrag.showWeight'));
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/**
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* Drag and drop table rows with field manipulation.
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*
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* Using the drupal_attach_tabledrag() function, any table with weights or
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* parent relationships may be made into draggable tables. Columns containing a
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* field may optionally be hidden, providing a better user experience.
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*
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* Created tableDrag instances may be modified with custom behaviors by
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* overriding the .onDrag, .onDrop, .row.onSwap, and .row.onIndent methods.
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* See blocks.js for an example of adding additional functionality to tableDrag.
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*/
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Drupal.behaviors.tableDrag = {
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attach: function (context, settings) {
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function initTableDrag(table, base) {
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if (table.length) {
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// Create the new tableDrag instance. Save in the Drupal variable
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// to allow other scripts access to the object.
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Drupal.tableDrag[base] = new Drupal.tableDrag(table[0], settings.tableDrag[base]);
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}
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}
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for (var base in settings.tableDrag) {
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if (settings.tableDrag.hasOwnProperty(base)) {
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initTableDrag($(context).find('#' + base).once('tabledrag'), base);
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}
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}
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}
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};
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/**
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* Constructor for the tableDrag object. Provides table and field manipulation.
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*
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* @param table
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* DOM object for the table to be made draggable.
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* @param tableSettings
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* Settings for the table added via drupal_add_dragtable().
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*/
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Drupal.tableDrag = function (table, tableSettings) {
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var self = this;
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var $table = $(table);
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// Required object variables.
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this.$table = $(table);
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this.table = table;
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this.tableSettings = tableSettings;
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this.dragObject = null; // Used to hold information about a current drag operation.
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this.rowObject = null; // Provides operations for row manipulation.
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this.oldRowElement = null; // Remember the previous element.
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this.oldY = 0; // Used to determine up or down direction from last mouse move.
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this.changed = false; // Whether anything in the entire table has changed.
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this.maxDepth = 0; // Maximum amount of allowed parenting.
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this.rtl = $(this.table).css('direction') === 'rtl' ? -1 : 1; // Direction of the table.
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// Configure the scroll settings.
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this.scrollSettings = { amount: 4, interval: 50, trigger: 70 };
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this.scrollInterval = null;
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this.scrollY = 0;
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this.windowHeight = 0;
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// Check this table's settings to see if there are parent relationships in
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// this table. For efficiency, large sections of code can be skipped if we
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// don't need to track horizontal movement and indentations.
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this.indentEnabled = false;
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for (var group in tableSettings) {
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if (tableSettings.hasOwnProperty(group)) {
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for (var n in tableSettings[group]) {
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if (tableSettings[group].hasOwnProperty(n)) {
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if (tableSettings[group][n].relationship === 'parent') {
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this.indentEnabled = true;
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}
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if (tableSettings[group][n].limit > 0) {
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this.maxDepth = tableSettings[group][n].limit;
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}
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}
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}
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}
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}
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if (this.indentEnabled) {
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this.indentCount = 1; // Total width of indents, set in makeDraggable.
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// Find the width of indentations to measure mouse movements against.
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// Because the table doesn't need to start with any indentations, we
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// manually append 2 indentations in the first draggable row, measure
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// the offset, then remove.
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var indent = Drupal.theme('tableDragIndentation');
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var testRow = $('<tr/>').addClass('draggable').appendTo(table);
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var testCell = $('<td/>').appendTo(testRow).prepend(indent).prepend(indent);
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var $indentation = testCell.find('.indentation');
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this.indentAmount = $indentation.get(1).offsetLeft - $indentation.get(0).offsetLeft;
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testRow.remove();
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}
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// Make each applicable row draggable.
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// Match immediate children of the parent element to allow nesting.
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$table.find('> tr.draggable, > tbody > tr.draggable').each(function () { self.makeDraggable(this); });
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// Add a link before the table for users to show or hide weight columns.
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$table.before($('<button type="button" class="link tabledrag-toggle-weight"></button>')
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.attr('title', Drupal.t('Re-order rows by numerical weight instead of dragging.'))
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.on('click', $.proxy(function (e) {
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e.preventDefault();
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this.toggleColumns();
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}, this))
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.wrap('<div class="tabledrag-toggle-weight-wrapper"></div>')
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.parent()
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);
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// Initialize the specified columns (for example, weight or parent columns)
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// to show or hide according to user preference. This aids accessibility
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// so that, e.g., screen reader users can choose to enter weight values and
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// manipulate form elements directly, rather than using drag-and-drop..
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self.initColumns();
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// Add event bindings to the document. The self variable is passed along
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// as event handlers do not have direct access to the tableDrag object.
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if (Modernizr.touch) {
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$(document).on('touchmove', function (event) { return self.dragRow(event.originalEvent.touches[0], self); });
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$(document).on('touchend', function (event) { return self.dropRow(event.originalEvent.touches[0], self); });
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}
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else {
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$(document).on('mousemove', function (event) { return self.dragRow(event, self); });
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$(document).on('mouseup', function (event) { return self.dropRow(event, self); });
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}
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// React to localStorage event showing or hiding weight columns.
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$(window).on('storage', $.proxy(function (e) {
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// Only react to 'Drupal.tableDrag.showWeight' value change.
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if (e.originalEvent.key === 'Drupal.tableDrag.showWeight') {
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// This was changed in another window, get the new value for this window.
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showWeight = JSON.parse(e.originalEvent.newValue);
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this.displayColumns(showWeight);
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}
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}, this));
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};
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/**
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* Initialize columns containing form elements to be hidden by default,
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* according to the settings for this tableDrag instance.
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*
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* Identify and mark each cell with a CSS class so we can easily toggle
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* show/hide it. Finally, hide columns if user does not have a
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* 'Drupal.tableDrag.showWeight' localStorage value.
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*/
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Drupal.tableDrag.prototype.initColumns = function () {
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var $table = this.$table;
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var hidden, cell, columnIndex;
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for (var group in this.tableSettings) {
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if (this.tableSettings.hasOwnProperty(group)) { // Find the first field in this group.
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for (var d in this.tableSettings[group]) {
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if (this.tableSettings[group].hasOwnProperty(d)) {
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var field = $table.find('.' + this.tableSettings[group][d].target + ':first');
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if (field.length && this.tableSettings[group][d].hidden) {
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hidden = this.tableSettings[group][d].hidden;
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cell = field.closest('td');
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break;
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}
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}
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}
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// Mark the column containing this field so it can be hidden.
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if (hidden && cell[0]) {
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// Add 1 to our indexes. The nth-child selector is 1 based, not 0 based.
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// Match immediate children of the parent element to allow nesting.
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columnIndex = cell.parent().find('> td').index(cell.get(0)) + 1;
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$table.find('> thead > tr, > tbody > tr, > tr').each(this.addColspanClass(columnIndex));
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}
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}
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}
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this.displayColumns(showWeight);
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};
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/**
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* Mark cells that have colspan so we can adjust the colspan
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* instead of hiding them altogether.
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*/
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Drupal.tableDrag.prototype.addColspanClass = function (columnIndex) {
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return function () {
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// Get the columnIndex and adjust for any colspans in this row.
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var $row = $(this);
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var index = columnIndex;
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var cells = $row.children();
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var cell;
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cells.each(function (n) {
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if (n < index && this.colSpan && this.colSpan > 1) {
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index -= this.colSpan - 1;
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}
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});
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if (index > 0) {
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cell = cells.filter(':nth-child(' + index + ')');
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if (cell[0].colSpan && cell[0].colSpan > 1) {
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// If this cell has a colspan, mark it so we can reduce the colspan.
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cell.addClass('tabledrag-has-colspan');
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}
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else {
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// Mark this cell so we can hide it.
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cell.addClass('tabledrag-hide');
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}
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}
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};
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};
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/**
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* Hide or display weight columns. Triggers an event on change.
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*
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* @param bool displayWeight
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* 'true' will show weight columns.
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*/
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Drupal.tableDrag.prototype.displayColumns = function (displayWeight) {
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if (displayWeight) {
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this.showColumns();
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}
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// Default action is to hide columns.
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else {
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this.hideColumns();
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}
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// Trigger an event to allow other scripts to react to this display change.
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// Force the extra parameter as a bool.
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$('table.tabledrag-processed').trigger('columnschange', !!displayWeight);
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};
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/**
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* Toggle the weight column depending on 'showWeight' value.
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* Store only default override.
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*/
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Drupal.tableDrag.prototype.toggleColumns = function () {
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showWeight = !showWeight;
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this.displayColumns(showWeight);
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if (showWeight) {
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// Save default override.
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localStorage.setItem('Drupal.tableDrag.showWeight', showWeight);
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}
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else {
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// Reset the value to its default.
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localStorage.removeItem('Drupal.tableDrag.showWeight');
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}
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};
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/**
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* Hide the columns containing weight/parent form elements.
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* Undo showColumns().
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*/
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Drupal.tableDrag.prototype.hideColumns = function () {
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var $tables = $('table.tabledrag-processed');
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// Hide weight/parent cells and headers.
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$tables.find('.tabledrag-hide').css('display', 'none');
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// Show TableDrag handles.
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$tables.find('.tabledrag-handle').css('display', '');
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// Reduce the colspan of any effected multi-span columns.
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$tables.find('.tabledrag-has-colspan').each(function () {
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this.colSpan = this.colSpan - 1;
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});
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// Change link text.
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$('.tabledrag-toggle-weight').text(Drupal.t('Show row weights'));
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};
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/**
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* Show the columns containing weight/parent form elements
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* Undo hideColumns().
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*/
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Drupal.tableDrag.prototype.showColumns = function () {
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var $tables = $('table.tabledrag-processed');
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// Show weight/parent cells and headers.
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$tables.find('.tabledrag-hide').css('display', '');
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// Hide TableDrag handles.
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$tables.find('.tabledrag-handle').css('display', 'none');
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// Increase the colspan for any columns where it was previously reduced.
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$tables.find('.tabledrag-has-colspan').each(function () {
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this.colSpan = this.colSpan + 1;
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});
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// Change link text.
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$('.tabledrag-toggle-weight').text(Drupal.t('Hide row weights'));
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};
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/**
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* Find the target used within a particular row and group.
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*/
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Drupal.tableDrag.prototype.rowSettings = function (group, row) {
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var field = $(row).find('.' + group);
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var tableSettingsGroup = this.tableSettings[group];
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for (var delta in tableSettingsGroup) {
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if (tableSettingsGroup.hasOwnProperty(delta)) {
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var targetClass = tableSettingsGroup[delta].target;
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if (field.is('.' + targetClass)) {
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// Return a copy of the row settings.
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var rowSettings = {};
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for (var n in tableSettingsGroup[delta]) {
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if (tableSettingsGroup[delta].hasOwnProperty(n)) {
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rowSettings[n] = tableSettingsGroup[delta][n];
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}
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}
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return rowSettings;
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}
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}
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}
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};
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/**
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* Take an item and add event handlers to make it become draggable.
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*/
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Drupal.tableDrag.prototype.makeDraggable = function (item) {
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var self = this;
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var $item = $(item);
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//Add a class to the title link
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$item.find('td:first a').addClass('menu-item__link');
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// Create the handle.
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var handle = $('<a href="#" class="tabledrag-handle"><div class="handle"> </div></a>').attr('title', Drupal.t('Drag to re-order'));
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// Insert the handle after indentations (if any).
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var $indentationLast = $item.find('td:first .indentation:last');
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if ($indentationLast.length) {
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$indentationLast.after(handle);
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// Update the total width of indentation in this entire table.
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self.indentCount = Math.max($item.find('.indentation').length, self.indentCount);
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}
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else {
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$item.find('td:first').prepend(handle);
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}
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if (Modernizr.touch) {
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handle.on('touchstart', function (event) {
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event.preventDefault();
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event = event.originalEvent.touches[0];
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self.dragStart(event, self, item);
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});
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}
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else {
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handle.on('mousedown', function (event) {
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event.preventDefault();
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self.dragStart(event, self, item);
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});
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}
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// Prevent the anchor tag from jumping us to the top of the page.
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handle.on('click', function (e) {
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e.preventDefault();
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});
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// Set blur cleanup when a handle is focused.
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handle.on('focus', function () {
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self.safeBlur = true;
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});
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// On blur, fire the same function as a touchend/mouseup. This is used to
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// update values after a row has been moved through the keyboard support.
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handle.on('blur', function (event) {
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if (self.rowObject && self.safeBlur) {
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self.dropRow(event, self);
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}
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});
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// Add arrow-key support to the handle.
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handle.on('keydown', function (event) {
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// If a rowObject doesn't yet exist and this isn't the tab key.
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if (event.keyCode !== 9 && !self.rowObject) {
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self.rowObject = new self.row(item, 'keyboard', self.indentEnabled, self.maxDepth, true);
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}
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var keyChange = false;
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var groupHeight;
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switch (event.keyCode) {
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case 37: // Left arrow.
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case 63234: // Safari left arrow.
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keyChange = true;
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self.rowObject.indent(-1 * self.rtl);
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break;
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case 38: // Up arrow.
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case 63232: // Safari up arrow.
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var $previousRow = $(self.rowObject.element).prev('tr').eq(0);
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var previousRow = $previousRow.get(0);
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while (previousRow && $previousRow.is(':hidden')) {
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$previousRow = $(previousRow).prev('tr').eq(0);
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previousRow = $previousRow.get(0);
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}
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if (previousRow) {
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self.safeBlur = false; // Do not allow the onBlur cleanup.
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self.rowObject.direction = 'up';
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keyChange = true;
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if ($(item).is('.tabledrag-root')) {
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// Swap with the previous top-level row.
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groupHeight = 0;
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while (previousRow && $previousRow.find('.indentation').length) {
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$previousRow = $(previousRow).prev('tr').eq(0);
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previousRow = $previousRow.get(0);
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groupHeight += $previousRow.is(':hidden') ? 0 : previousRow.offsetHeight;
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}
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if (previousRow) {
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self.rowObject.swap('before', previousRow);
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// No need to check for indentation, 0 is the only valid one.
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window.scrollBy(0, -groupHeight);
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}
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}
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else if (self.table.tBodies[0].rows[0] !== previousRow || $previousRow.is('.draggable')) {
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// Swap with the previous row (unless previous row is the first one
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// and undraggable).
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self.rowObject.swap('before', previousRow);
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self.rowObject.interval = null;
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self.rowObject.indent(0);
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window.scrollBy(0, -parseInt(item.offsetHeight, 10));
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}
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handle.trigger('focus'); // Regain focus after the DOM manipulation.
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}
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break;
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case 39: // Right arrow.
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case 63235: // Safari right arrow.
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keyChange = true;
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self.rowObject.indent(self.rtl);
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break;
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case 40: // Down arrow.
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case 63233: // Safari down arrow.
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var $nextRow = $(self.rowObject.group).filter(':last').next('tr').eq(0);
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var nextRow = $nextRow.get(0);
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while (nextRow && $nextRow.is(':hidden')) {
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$nextRow = $(nextRow).next('tr').eq(0);
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nextRow = $nextRow.get(0);
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}
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if (nextRow) {
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self.safeBlur = false; // Do not allow the onBlur cleanup.
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self.rowObject.direction = 'down';
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keyChange = true;
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if ($(item).is('.tabledrag-root')) {
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// Swap with the next group (necessarily a top-level one).
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groupHeight = 0;
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var nextGroup = new self.row(nextRow, 'keyboard', self.indentEnabled, self.maxDepth, false);
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if (nextGroup) {
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$(nextGroup.group).each(function () {
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groupHeight += $(this).is(':hidden') ? 0 : this.offsetHeight;
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});
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var nextGroupRow = $(nextGroup.group).filter(':last').get(0);
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self.rowObject.swap('after', nextGroupRow);
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// No need to check for indentation, 0 is the only valid one.
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window.scrollBy(0, parseInt(groupHeight, 10));
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}
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}
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else {
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// Swap with the next row.
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self.rowObject.swap('after', nextRow);
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self.rowObject.interval = null;
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self.rowObject.indent(0);
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window.scrollBy(0, parseInt(item.offsetHeight, 10));
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}
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handle.trigger('focus'); // Regain focus after the DOM manipulation.
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}
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break;
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}
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if (self.rowObject && self.rowObject.changed === true) {
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$(item).addClass('drag');
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if (self.oldRowElement) {
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$(self.oldRowElement).removeClass('drag-previous');
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}
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self.oldRowElement = item;
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self.restripeTable();
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self.onDrag();
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}
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// Returning false if we have an arrow key to prevent scrolling.
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if (keyChange) {
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return false;
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}
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});
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// Compatibility addition, return false on keypress to prevent unwanted scrolling.
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// IE and Safari will suppress scrolling on keydown, but all other browsers
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// need to return false on keypress. http://www.quirksmode.org/js/keys.html
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handle.on('keypress', function (event) {
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switch (event.keyCode) {
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case 37: // Left arrow.
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case 38: // Up arrow.
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case 39: // Right arrow.
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case 40: // Down arrow.
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return false;
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}
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});
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};
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/**
|
|
* 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 DOM item
|
|
* The item that 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');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Pointer movement handler, bound to document.
|
|
*/
|
|
Drupal.tableDrag.prototype.dragRow = function (event, self) {
|
|
if (self.dragObject) {
|
|
self.currentPointerCoords = self.pointerCoords(event);
|
|
var y = self.currentPointerCoords.y - self.dragObject.initOffset.y;
|
|
var 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';
|
|
self.oldY = y; // Update the old value.
|
|
|
|
// Check if the window should be scrolled (and how fast).
|
|
var 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.
|
|
var 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);
|
|
}
|
|
self.restripeTable();
|
|
}
|
|
}
|
|
|
|
// Similar to row swapping, handle indentations.
|
|
if (self.indentEnabled) {
|
|
var xDiff = self.currentPointerCoords.x - self.dragObject.indentPointerPos.x;
|
|
// Set the number of indentations the pointer has been moved left or right.
|
|
var 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.
|
|
var 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.
|
|
*/
|
|
Drupal.tableDrag.prototype.dropRow = function (event, self) {
|
|
var droppedRow, $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.
|
|
for (var group in self.tableSettings) {
|
|
if (self.tableSettings.hasOwnProperty(group)) {
|
|
var rowSettings = self.rowSettings(group, droppedRow);
|
|
if (rowSettings.relationship === 'group') {
|
|
for (var n in self.rowObject.children) {
|
|
if (self.rowObject.children.hasOwnProperty(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).
|
|
*/
|
|
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
|
|
};
|
|
};
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
Drupal.tableDrag.prototype.getPointerOffset = function (target, event) {
|
|
var docPos = $(target).offset();
|
|
var 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 x
|
|
* The x coordinate of the mouse on the page (not the screen).
|
|
* @param y
|
|
* The y coordinate of the mouse on the page (not the screen).
|
|
*/
|
|
Drupal.tableDrag.prototype.findDropTargetRow = function (x, y) {
|
|
var rows = $(this.table.tBodies[0].rows).not(':hidden');
|
|
for (var n = 0; n < rows.length; n++) {
|
|
var row = rows[n];
|
|
var $row = $(row);
|
|
var rowY = $row.offset().top;
|
|
var rowHeight;
|
|
// Because Safari does not report offsetHeight on table rows, but does on
|
|
// table cells, grab the firstChild of the row and use that instead.
|
|
// http://jacob.peargrove.com/blog/2006/technical/table-row-offsettop-bug-in-safari.
|
|
if (row.offsetHeight === 0) {
|
|
rowHeight = parseInt(row.firstChild.offsetHeight, 10) / 2;
|
|
}
|
|
// Other browsers.
|
|
else {
|
|
rowHeight = parseInt(row.offsetHeight, 10) / 2;
|
|
}
|
|
|
|
// Because we always insert before, we need to offset the height a bit.
|
|
if ((y > (rowY - rowHeight)) && (y < (rowY + rowHeight))) {
|
|
if (this.indentEnabled) {
|
|
// Check that this row is not a child of the row being dragged.
|
|
for (n in this.rowObject.group) {
|
|
if (this.rowObject.group[n] === row) {
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Do not allow a row to be swapped with itself.
|
|
if (row === this.rowObject.element) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// Check that swapping with this row is allowed.
|
|
if (!this.rowObject.isValidSwap(row)) {
|
|
return null;
|
|
}
|
|
|
|
// We may have found the row the mouse just passed over, but it doesn't
|
|
// take into account hidden rows. Skip backwards until we find a draggable
|
|
// row.
|
|
while ($row.is(':hidden') && $row.prev('tr').is(':hidden')) {
|
|
$row = $row.prev('tr').eq(0);
|
|
row = $row.get(0);
|
|
}
|
|
return row;
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* After the row is dropped, update the table fields according to the settings
|
|
* set for this table.
|
|
*
|
|
* @param changedRow
|
|
* DOM object for the row that was just dropped.
|
|
*/
|
|
Drupal.tableDrag.prototype.updateFields = function (changedRow) {
|
|
for (var group in this.tableSettings) {
|
|
if (this.tableSettings.hasOwnProperty(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 according to specific
|
|
* settings.
|
|
*
|
|
* @param changedRow
|
|
* DOM object for the row that was just dropped.
|
|
* @param group
|
|
* The settings group on which field updates will occur.
|
|
*/
|
|
Drupal.tableDrag.prototype.updateField = function (changedRow, group) {
|
|
var rowSettings = this.rowSettings(group, changedRow);
|
|
var $changedRow = $(changedRow);
|
|
var sourceRow;
|
|
var $previousRow;
|
|
var previousRow;
|
|
var 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').eq(0);
|
|
previousRow = $previousRow.get(0);
|
|
var $nextRow = $changedRow.next('tr').eq(0);
|
|
var nextRow = $nextRow.get(0);
|
|
sourceRow = changedRow;
|
|
if ($previousRow.is('.draggable') && $previousRow.find('.' + group).length) {
|
|
if (this.indentEnabled) {
|
|
if ($previousRow.find('.indentations').length === $changedRow.find('.indentations').length) {
|
|
sourceRow = previousRow;
|
|
}
|
|
}
|
|
else {
|
|
sourceRow = previousRow;
|
|
}
|
|
}
|
|
else if ($nextRow.is('.draggable') && $nextRow.find('.' + group).length) {
|
|
if (this.indentEnabled) {
|
|
if ($nextRow.find('.indentations').length === $changedRow.find('.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('.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').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;
|
|
}
|
|
|
|
var targetClass = '.' + rowSettings.target;
|
|
var targetElement = $changedRow.find(targetClass).get(0);
|
|
|
|
// Check if a target element exists in this row.
|
|
if (targetElement) {
|
|
var sourceClass = '.' + rowSettings.source;
|
|
var sourceElement = $(sourceClass, sourceRow).get(0);
|
|
switch (rowSettings.action) {
|
|
case 'depth':
|
|
// Get the depth of the target row.
|
|
targetElement.value = $(sourceElement).closest('tr').find('.indentation').length;
|
|
break;
|
|
case 'match':
|
|
// Update the value.
|
|
targetElement.value = sourceElement.value;
|
|
break;
|
|
case 'order':
|
|
var siblings = this.rowObject.findSiblings(rowSettings);
|
|
if ($(targetElement).is('select')) {
|
|
// Get a list of acceptable values.
|
|
var values = [];
|
|
$(targetElement).find('option').each(function () {
|
|
values.push(this.value);
|
|
});
|
|
var maxVal = values[values.length - 1];
|
|
// Populate the values in the siblings.
|
|
$(siblings).find(targetClass).each(function () {
|
|
// If there are more items than possible values, assign the maximum value to the row.
|
|
if (values.length > 0) {
|
|
this.value = values.shift();
|
|
}
|
|
else {
|
|
this.value = maxVal;
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
// Assume a numeric input field.
|
|
var weight = parseInt($(siblings[0]).find(targetClass).val(), 10) || 0;
|
|
$(siblings).find(targetClass).each(function () {
|
|
this.value = weight;
|
|
weight++;
|
|
});
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
Drupal.tableDrag.prototype.copyDragClasses = function (sourceRow, targetRow, group) {
|
|
var sourceElement = $(sourceRow).find('.' + group);
|
|
var targetElement = $(targetRow).find('.' + group);
|
|
if (sourceElement.length && targetElement.length) {
|
|
targetElement[0].className = sourceElement[0].className;
|
|
}
|
|
};
|
|
|
|
Drupal.tableDrag.prototype.checkScroll = function (cursorY) {
|
|
var de = document.documentElement;
|
|
var b = document.body;
|
|
|
|
var windowHeight = this.windowHeight = window.innerHeight || (de.clientHeight && de.clientWidth !== 0 ? de.clientHeight : b.offsetHeight);
|
|
var scrollY = this.scrollY = (document.all ? (!de.scrollTop ? b.scrollTop : de.scrollTop) : (window.pageYOffset ? window.pageYOffset : window.scrollY));
|
|
var trigger = this.scrollSettings.trigger;
|
|
var 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;
|
|
}
|
|
else if (cursorY - scrollY < trigger) {
|
|
delta = trigger / (cursorY - scrollY);
|
|
delta = (delta > 0 && delta < trigger) ? delta : trigger;
|
|
return -delta * this.scrollSettings.amount;
|
|
}
|
|
};
|
|
|
|
Drupal.tableDrag.prototype.setScroll = function (scrollAmount) {
|
|
var self = this;
|
|
|
|
this.scrollInterval = setInterval(function () {
|
|
// Update the scroll values stored in the object.
|
|
self.checkScroll(self.currentPointerCoords.y);
|
|
var aboveTable = self.scrollY > self.table.topY;
|
|
var belowTable = self.scrollY + self.windowHeight < self.table.bottomY;
|
|
if (scrollAmount > 0 && belowTable || scrollAmount < 0 && aboveTable) {
|
|
window.scrollBy(0, scrollAmount);
|
|
}
|
|
}, this.scrollSettings.interval);
|
|
};
|
|
|
|
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:visible, > tr.draggable:visible')
|
|
.removeClass('odd even')
|
|
.filter(':odd').addClass('even').end()
|
|
.filter(':even').addClass('odd');
|
|
};
|
|
|
|
/**
|
|
* Stub function. Allows a custom handler when a row begins dragging.
|
|
*/
|
|
Drupal.tableDrag.prototype.onDrag = function () {
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Stub function. Allows a custom handler when a row is dropped.
|
|
*/
|
|
Drupal.tableDrag.prototype.onDrop = function () {
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Constructor to make a new object to manipulate a table row.
|
|
*
|
|
* @param tableRow
|
|
* The DOM element for the table row we will be manipulating.
|
|
* @param method
|
|
* The method in which this row is being moved. Either 'keyboard' or 'mouse'.
|
|
* @param indentEnabled
|
|
* Whether the containing table uses indentations. Used for optimizations.
|
|
* @param maxDepth
|
|
* The maximum amount of indentations this row may contain.
|
|
* @param addClasses
|
|
* Whether we want to add classes to this row to indicate child relationships.
|
|
*/
|
|
Drupal.tableDrag.prototype.row = function (tableRow, method, indentEnabled, maxDepth, addClasses) {
|
|
var $tableRow = $(tableRow);
|
|
|
|
this.element = tableRow;
|
|
this.method = method;
|
|
this.group = [tableRow];
|
|
this.groupDepth = $tableRow.find('.indentation').length;
|
|
this.changed = false;
|
|
this.table = $tableRow.closest('table')[0];
|
|
this.indentEnabled = indentEnabled;
|
|
this.maxDepth = maxDepth;
|
|
this.direction = ''; // Direction the row is being moved.
|
|
|
|
if (this.indentEnabled) {
|
|
this.indents = $tableRow.find('.indentation').length;
|
|
this.children = this.findChildren(addClasses);
|
|
this.group = $.merge(this.group, this.children);
|
|
// Find the depth of this entire group.
|
|
for (var n = 0; n < this.group.length; n++) {
|
|
this.groupDepth = Math.max($(this.group[n]).find('.indentation').length, this.groupDepth);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Find all children of rowObject by indentation.
|
|
*
|
|
* @param addClasses
|
|
* Whether we want to add classes to this row to indicate child relationships.
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.findChildren = function (addClasses) {
|
|
var parentIndentation = this.indents;
|
|
var currentRow = $(this.element, this.table).next('tr.draggable');
|
|
var rows = [];
|
|
var child = 0;
|
|
|
|
function rowIndentation(el, indentNum) {
|
|
var 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('.indentation').length > parentIndentation) {
|
|
child++;
|
|
rows.push(currentRow[0]);
|
|
if (addClasses) {
|
|
currentRow.find('.indentation').each(rowIndentation);
|
|
}
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
currentRow = currentRow.next('tr.draggable');
|
|
}
|
|
if (addClasses && rows.length) {
|
|
$(rows[rows.length - 1]).find('.indentation:nth-child(' + (parentIndentation + 1) + ')').addClass('tree-child-last');
|
|
}
|
|
return rows;
|
|
};
|
|
|
|
/**
|
|
* Ensure that two rows are allowed to be swapped.
|
|
*
|
|
* @param row
|
|
* DOM object for the row being considered for swapping.
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.isValidSwap = function (row) {
|
|
var $row = $(row);
|
|
if (this.indentEnabled) {
|
|
var prevRow, 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 position
|
|
* Whether the swap will occur 'before' or 'after' the given row.
|
|
* @param 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(function (row) {
|
|
Drupal.detachBehaviors(row, drupalSettings, 'move');
|
|
});
|
|
$(row)[position](this.group);
|
|
// Makes sure only DOM object are passed to Drupal.attachBehaviors()s.
|
|
this.group.forEach(function (row) {
|
|
Drupal.attachBehaviors(row, drupalSettings);
|
|
});
|
|
this.changed = true;
|
|
this.onSwap(row);
|
|
};
|
|
|
|
/**
|
|
* Determine the valid indentations interval for the row at a given position
|
|
* in the table.
|
|
*
|
|
* @param prevRow
|
|
* DOM object for the row before the tested position
|
|
* (or null for first position in the table).
|
|
* @param nextRow
|
|
* DOM object for the row after the tested position
|
|
* (or null for last position in the table).
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.validIndentInterval = function (prevRow, nextRow) {
|
|
var $prevRow = $(prevRow);
|
|
var minIndent, maxIndent;
|
|
|
|
// Minimum indentation:
|
|
// Do not orphan the next row.
|
|
minIndent = nextRow ? $(nextRow).find('.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 = $prevRow.find('.indentation').length + ($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 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.
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.indent = function (indentDiff) {
|
|
var $group = $(this.group);
|
|
// Determine the valid indentations interval if not available yet.
|
|
if (!this.interval) {
|
|
var prevRow = $(this.element).prev('tr').get(0);
|
|
var nextRow = $group.filter(':last').next('tr').get(0);
|
|
this.interval = this.validIndentInterval(prevRow, nextRow);
|
|
}
|
|
|
|
// Adjust to the nearest valid indentation.
|
|
var indent = this.indents + indentDiff;
|
|
indent = Math.max(indent, this.interval.min);
|
|
indent = Math.min(indent, this.interval.max);
|
|
indentDiff = indent - this.indents;
|
|
|
|
for (var n = 1; n <= Math.abs(indentDiff); n++) {
|
|
// Add or remove indentations.
|
|
if (indentDiff < 0) {
|
|
$group.find('.indentation:first').remove();
|
|
this.indents--;
|
|
}
|
|
else {
|
|
$group.find('td:first').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, either according to its subgroup or indentation.
|
|
* Note that the passed-in row is included in the list of siblings.
|
|
*
|
|
* @param settings
|
|
* The field settings we're using to identify what constitutes a sibling.
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.findSiblings = function (rowSettings) {
|
|
var siblings = [];
|
|
var directions = ['prev', 'next'];
|
|
var rowIndentation = this.indents;
|
|
var checkRowIndentation;
|
|
for (var d = 0; d < directions.length; d++) {
|
|
var 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('.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 () {
|
|
for (var n in this.children) {
|
|
if (this.children.hasOwnProperty(n)) {
|
|
$(this.children[n]).find('.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 () {
|
|
var marker = Drupal.theme('tableDragChangedMarker');
|
|
var cell = $(this.element).find('td:first');
|
|
if (cell.find('abbr.tabledrag-changed').length === 0) {
|
|
cell.append(marker);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Stub function. Allows a custom handler when a row is indented.
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.onIndent = function () {
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Stub function. Allows a custom handler when a row is swapped.
|
|
*/
|
|
Drupal.tableDrag.prototype.row.prototype.onSwap = function (swappedRow) {
|
|
return null;
|
|
};
|
|
|
|
$.extend(Drupal.theme, {
|
|
tableDragChangedMarker: function () {
|
|
return '<abbr class="warning tabledrag-changed" title="' + Drupal.t('Changed') + '">*</abbr>';
|
|
},
|
|
tableDragIndentation: function () {
|
|
return '<div class="indentation"> </div>';
|
|
},
|
|
tableDragChangedWarning: function () {
|
|
return '<div class="tabledrag-changed-warning messages messages--warning" role="alert">' + Drupal.theme('tableDragChangedMarker') + ' ' + Drupal.t('You have unsaved changes.') + '</div>';
|
|
}
|
|
});
|
|
|
|
})(jQuery, Drupal, drupalSettings);
|