Mercurial > public > madeira

comparison media/django/js/SelectFilter.js @ 1:0dcfcdf50c62

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial import of Madeira project from the private repository.
author Brian Neal <bgneal@gmail.com>
date Mon, 06 Apr 2009 03:10:59 +0000
parents
children
comparison
equal deleted inserted replaced
0:df0370bfe3f0 1:0dcfcdf50c62
1 /*
2 SelectFilter - Turns a multiple-select box into a filter interface.
3
4 Requires SelectBox.js and addevent.js.
5 */
6
7 function findForm(node) {
8 // returns the node of the form containing the given node
9 if (node.tagName.toLowerCase() != 'form') {
10 return findForm(node.parentNode);
11 }
12 return node;
13 }
14
15 var SelectFilter = {
16 init: function(field_id) {
17 var from_box = document.getElementById(field_id);
18 from_box.id += '_from'; // change its ID
19 // Create the INPUT input box
20 var input_box = document.createElement('input');
21 input_box.id = field_id + '_input';
22 input_box.setAttribute('type', 'text');
23 from_box.parentNode.insertBefore(input_box, from_box);
24 from_box.parentNode.insertBefore(document.createElement('br'), input_box.nextSibling);
25 // Create the TO box
26 var to_box = document.createElement('select');
27 to_box.id = field_id + '_to';
28 to_box.setAttribute('multiple', 'multiple');
29 to_box.setAttribute('size', from_box.size);
30 from_box.parentNode.insertBefore(to_box, from_box.nextSibling);
31 to_box.setAttribute('name', from_box.getAttribute('name'));
32 from_box.setAttribute('name', from_box.getAttribute('name') + '_old');
33 // Give the filters a CSS hook
34 from_box.setAttribute('class', 'filtered');
35 to_box.setAttribute('class', 'filtered');
36 // Set up the JavaScript event handlers for the select box filter interface
37 addEvent(input_box, 'keyup', function(e) { SelectFilter.filter_key_up(e, field_id); });
38 addEvent(input_box, 'keydown', function(e) { SelectFilter.filter_key_down(e, field_id); });
39 addEvent(from_box, 'dblclick', function() { SelectBox.move(field_id + '_from', field_id + '_to'); });
40 addEvent(from_box, 'focus', function() { input_box.focus(); });
41 addEvent(to_box, 'dblclick', function() { SelectBox.move(field_id + '_to', field_id + '_from'); });
42 addEvent(findForm(from_box), 'submit', function() { SelectBox.select_all(field_id + '_to'); });
43 SelectBox.init(field_id + '_from');
44 SelectBox.init(field_id + '_to');
45 // Move selected from_box options to to_box
46 SelectBox.move(field_id + '_from', field_id + '_to');
47 },
48 filter_key_up: function(event, field_id) {
49 from = document.getElementById(field_id + '_from');
50 // don't submit form if user pressed Enter
51 if ((event.which && event.which == 13) || (event.keyCode && event.keyCode == 13)) {
52 from.selectedIndex = 0;
53 SelectBox.move(field_id + '_from', field_id + '_to');
54 from.selectedIndex = 0;
55 return false;
56 }
57 var temp = from.selectedIndex;
58 SelectBox.filter(field_id + '_from', document.getElementById(field_id + '_input').value);
59 from.selectedIndex = temp;
60 return true;
61 },
62 filter_key_down: function(event, field_id) {
63 from = document.getElementById(field_id + '_from');
64 // right arrow -- move across
65 if ((event.which && event.which == 39) || (event.keyCode && event.keyCode == 39)) {
66 var old_index = from.selectedIndex;
67 SelectBox.move(field_id + '_from', field_id + '_to');
68 from.selectedIndex = (old_index == from.length) ? from.length - 1 : old_index;
69 return false;
70 }
71 // down arrow -- wrap around
72 if ((event.which && event.which == 40) || (event.keyCode && event.keyCode == 40)) {
73 from.selectedIndex = (from.length == from.selectedIndex + 1) ? 0 : from.selectedIndex + 1;
74 }
75 // up arrow -- wrap around
76 if ((event.which && event.which == 38) || (event.keyCode && event.keyCode == 38)) {
77 from.selectedIndex = (from.selectedIndex == 0) ? from.length - 1 : from.selectedIndex - 1;
78 }
79 return true;
80 }
81 }