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annotate modules/block/block.js @ 1:c1f4ac30525a 6.0

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Drupal 6.0
author Franck Deroche <webmaster@defr.org>
date Tue, 23 Dec 2008 14:28:28 +0100
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webmaster@1 1 // $Id: block.js,v 1.2 2007/12/16 10:36:53 goba Exp $
webmaster@1 2
webmaster@1 3 /**
webmaster@1 4 * Move a block in the blocks table from one region to another via select list.
webmaster@1 5 *
webmaster@1 6 * This behavior is dependent on the tableDrag behavior, since it uses the
webmaster@1 7 * objects initialized in that behavior to update the row.
webmaster@1 8 */
webmaster@1 9 Drupal.behaviors.blockDrag = function(context) {
webmaster@1 10 var table = $('table#blocks');
webmaster@1 11 var tableDrag = Drupal.tableDrag.blocks; // Get the blocks tableDrag object.
webmaster@1 12
webmaster@1 13 // Add a handler for when a row is swapped, update empty regions.
webmaster@1 14 tableDrag.row.prototype.onSwap = function(swappedRow) {
webmaster@1 15 checkEmptyRegions(table, this);
webmaster@1 16 };
webmaster@1 17
webmaster@1 18 // A custom message for the blocks page specifically.
webmaster@1 19 Drupal.theme.tableDragChangedWarning = function () {
webmaster@1 20 return '<div class="warning">' + Drupal.theme('tableDragChangedMarker') + ' ' + Drupal.t("The changes to these blocks will not be saved until the <em>Save blocks</em> button is clicked.") + '</div>';
webmaster@1 21 };
webmaster@1 22
webmaster@1 23 // Add a handler so when a row is dropped, update fields dropped into new regions.
webmaster@1 24 tableDrag.onDrop = function() {
webmaster@1 25 dragObject = this;
webmaster@1 26 if ($(dragObject.rowObject.element).prev('tr').is('.region-message')) {
webmaster@1 27 var regionRow = $(dragObject.rowObject.element).prev('tr').get(0);
webmaster@1 28 var regionName = regionRow.className.replace(/([^ ]+[ ]+)*region-([^ ]+)-message([ ]+[^ ]+)*/, '$2');
webmaster@1 29 var regionField = $('select.block-region-select', dragObject.rowObject.element);
webmaster@1 30 var weightField = $('select.block-weight', dragObject.rowObject.element);
webmaster@1 31 var oldRegionName = weightField[0].className.replace(/([^ ]+[ ]+)*block-weight-([^ ]+)([ ]+[^ ]+)*/, '$2');
webmaster@1 32
webmaster@1 33 if (!regionField.is('.block-region-'+ regionName)) {
webmaster@1 34 regionField.removeClass('block-region-' + oldRegionName).addClass('block-region-' + regionName);
webmaster@1 35 weightField.removeClass('block-weight-' + oldRegionName).addClass('block-weight-' + regionName);
webmaster@1 36 regionField.val(regionName);
webmaster@1 37 }
webmaster@1 38 }
webmaster@1 39 };
webmaster@1 40
webmaster@1 41 // Add the behavior to each region select list.
webmaster@1 42 $('select.block-region-select:not(.blockregionselect-processed)', context).each(function() {
webmaster@1 43 $(this).change(function(event) {
webmaster@1 44 // Make our new row and select field.
webmaster@1 45 var row = $(this).parents('tr:first');
webmaster@1 46 var select = $(this);
webmaster@1 47 tableDrag.rowObject = new tableDrag.row(row);
webmaster@1 48
webmaster@1 49 // Find the correct region and insert the row as the first in the region.
webmaster@1 50 $('tr.region-message', table).each(function() {
webmaster@1 51 if ($(this).is('.region-' + select[0].value + '-message')) {
webmaster@1 52 // Add the new row and remove the old one.
webmaster@1 53 $(this).after(row);
webmaster@1 54 // Manually update weights and restripe.
webmaster@1 55 tableDrag.updateFields(row.get(0));
webmaster@1 56 tableDrag.rowObject.changed = true;
webmaster@1 57 if (tableDrag.oldRowElement) {
webmaster@1 58 $(tableDrag.oldRowElement).removeClass('drag-previous');
webmaster@1 59 }
webmaster@1 60 tableDrag.oldRowElement = row.get(0);
webmaster@1 61 tableDrag.restripeTable();
webmaster@1 62 tableDrag.rowObject.markChanged();
webmaster@1 63 tableDrag.oldRowElement = row;
webmaster@1 64 $(row).addClass('drag-previous');
webmaster@1 65 }
webmaster@1 66 });
webmaster@1 67
webmaster@1 68 // Modify empty regions with added or removed fields.
webmaster@1 69 checkEmptyRegions(table, row);
webmaster@1 70 // Remove focus from selectbox.
webmaster@1 71 select.get(0).blur();
webmaster@1 72 });
webmaster@1 73 $(this).addClass('blockregionselect-processed');
webmaster@1 74 });
webmaster@1 75
webmaster@1 76 var checkEmptyRegions = function(table, rowObject) {
webmaster@1 77 $('tr.region-message', table).each(function() {
webmaster@1 78 // If the dragged row is in this region, but above the message row, swap it down one space.
webmaster@1 79 if ($(this).prev('tr').get(0) == rowObject.element) {
webmaster@1 80 // Prevent a recursion problem when using the keyboard to move rows up.
webmaster@1 81 if ((rowObject.method != 'keyboard' || rowObject.direction == 'down')) {
webmaster@1 82 rowObject.swap('after', this);
webmaster@1 83 }
webmaster@1 84 }
webmaster@1 85 // This region has become empty
webmaster@1 86 if ($(this).next('tr').is(':not(.draggable)') || $(this).next('tr').size() == 0) {
webmaster@1 87 $(this).removeClass('region-populated').addClass('region-empty');
webmaster@1 88 }
webmaster@1 89 // This region has become populated.
webmaster@1 90 else if ($(this).is('.region-empty')) {
webmaster@1 91 $(this).removeClass('region-empty').addClass('region-populated');
webmaster@1 92 }
webmaster@1 93 });
webmaster@1 94 };
webmaster@1 95 };