Mercurial > public > madeira
comparison media/django/js/SelectFilter2.js @ 1:0dcfcdf50c62
Initial import of Madeira project from the private repository.
author | Brian Neal <bgneal@gmail.com> |
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date | Mon, 06 Apr 2009 03:10:59 +0000 |
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0:df0370bfe3f0 | 1:0dcfcdf50c62 |
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1 /* | |
2 SelectFilter2 - Turns a multiple-select box into a filter interface. | |
3 | |
4 Different than SelectFilter because this is coupled to the admin framework. | |
5 | |
6 Requires core.js, SelectBox.js and addevent.js. | |
7 */ | |
8 | |
9 function findForm(node) { | |
10 // returns the node of the form containing the given node | |
11 if (node.tagName.toLowerCase() != 'form') { | |
12 return findForm(node.parentNode); | |
13 } | |
14 return node; | |
15 } | |
16 | |
17 var SelectFilter = { | |
18 init: function(field_id, field_name, is_stacked, admin_media_prefix) { | |
19 var from_box = document.getElementById(field_id); | |
20 from_box.id += '_from'; // change its ID | |
21 from_box.className = 'filtered'; | |
22 | |
23 // Remove <p class="info">, because it just gets in the way. | |
24 var ps = from_box.parentNode.getElementsByTagName('p'); | |
25 for (var i=0; i<ps.length; i++) { | |
26 from_box.parentNode.removeChild(ps[i]); | |
27 } | |
28 | |
29 // <div class="selector"> or <div class="selector stacked"> | |
30 var selector_div = quickElement('div', from_box.parentNode); | |
31 selector_div.className = is_stacked ? 'selector stacked' : 'selector'; | |
32 | |
33 // <div class="selector-available"> | |
34 var selector_available = quickElement('div', selector_div, ''); | |
35 selector_available.className = 'selector-available'; | |
36 quickElement('h2', selector_available, interpolate(gettext('Available %s'), [field_name])); | |
37 var filter_p = quickElement('p', selector_available, ''); | |
38 filter_p.className = 'selector-filter'; | |
39 quickElement('img', filter_p, '', 'src', admin_media_prefix + 'img/admin/selector-search.gif'); | |
40 filter_p.appendChild(document.createTextNode(' ')); | |
41 var filter_input = quickElement('input', filter_p, '', 'type', 'text'); | |
42 filter_input.id = field_id + '_input'; | |
43 selector_available.appendChild(from_box); | |
44 var choose_all = quickElement('a', selector_available, gettext('Choose all'), 'href', 'javascript: (function(){ SelectBox.move_all("' + field_id + '_from", "' + field_id + '_to"); })()'); | |
45 choose_all.className = 'selector-chooseall'; | |
46 | |
47 // <ul class="selector-chooser"> | |
48 var selector_chooser = quickElement('ul', selector_div, ''); | |
49 selector_chooser.className = 'selector-chooser'; | |
50 var add_link = quickElement('a', quickElement('li', selector_chooser, ''), gettext('Add'), 'href', 'javascript: (function(){ SelectBox.move("' + field_id + '_from","' + field_id + '_to");})()'); | |
51 add_link.className = 'selector-add'; | |
52 var remove_link = quickElement('a', quickElement('li', selector_chooser, ''), gettext('Remove'), 'href', 'javascript: (function(){ SelectBox.move("' + field_id + '_to","' + field_id + '_from");})()'); | |
53 remove_link.className = 'selector-remove'; | |
54 | |
55 // <div class="selector-chosen"> | |
56 var selector_chosen = quickElement('div', selector_div, ''); | |
57 selector_chosen.className = 'selector-chosen'; | |
58 quickElement('h2', selector_chosen, interpolate(gettext('Chosen %s'), [field_name])); | |
59 var selector_filter = quickElement('p', selector_chosen, gettext('Select your choice(s) and click ')); | |
60 selector_filter.className = 'selector-filter'; | |
61 quickElement('img', selector_filter, '', 'src', admin_media_prefix + (is_stacked ? 'img/admin/selector_stacked-add.gif':'img/admin/selector-add.gif'), 'alt', 'Add'); | |
62 var to_box = quickElement('select', selector_chosen, '', 'id', field_id + '_to', 'multiple', 'multiple', 'size', from_box.size, 'name', from_box.getAttribute('name')); | |
63 to_box.className = 'filtered'; | |
64 var clear_all = quickElement('a', selector_chosen, gettext('Clear all'), 'href', 'javascript: (function() { SelectBox.move_all("' + field_id + '_to", "' + field_id + '_from");})()'); | |
65 clear_all.className = 'selector-clearall'; | |
66 | |
67 from_box.setAttribute('name', from_box.getAttribute('name') + '_old'); | |
68 | |
69 // Set up the JavaScript event handlers for the select box filter interface | |
70 addEvent(filter_input, 'keyup', function(e) { SelectFilter.filter_key_up(e, field_id); }); | |
71 addEvent(filter_input, 'keydown', function(e) { SelectFilter.filter_key_down(e, field_id); }); | |
72 addEvent(from_box, 'dblclick', function() { SelectBox.move(field_id + '_from', field_id + '_to'); }); | |
73 addEvent(to_box, 'dblclick', function() { SelectBox.move(field_id + '_to', field_id + '_from'); }); | |
74 addEvent(findForm(from_box), 'submit', function() { SelectBox.select_all(field_id + '_to'); }); | |
75 SelectBox.init(field_id + '_from'); | |
76 SelectBox.init(field_id + '_to'); | |
77 // Move selected from_box options to to_box | |
78 SelectBox.move(field_id + '_from', field_id + '_to'); | |
79 }, | |
80 filter_key_up: function(event, field_id) { | |
81 from = document.getElementById(field_id + '_from'); | |
82 // don't submit form if user pressed Enter | |
83 if ((event.which && event.which == 13) || (event.keyCode && event.keyCode == 13)) { | |
84 from.selectedIndex = 0; | |
85 SelectBox.move(field_id + '_from', field_id + '_to'); | |
86 from.selectedIndex = 0; | |
87 return false; | |
88 } | |
89 var temp = from.selectedIndex; | |
90 SelectBox.filter(field_id + '_from', document.getElementById(field_id + '_input').value); | |
91 from.selectedIndex = temp; | |
92 return true; | |
93 }, | |
94 filter_key_down: function(event, field_id) { | |
95 from = document.getElementById(field_id + '_from'); | |
96 // right arrow -- move across | |
97 if ((event.which && event.which == 39) || (event.keyCode && event.keyCode == 39)) { | |
98 var old_index = from.selectedIndex; | |
99 SelectBox.move(field_id + '_from', field_id + '_to'); | |
100 from.selectedIndex = (old_index == from.length) ? from.length - 1 : old_index; | |
101 return false; | |
102 } | |
103 // down arrow -- wrap around | |
104 if ((event.which && event.which == 40) || (event.keyCode && event.keyCode == 40)) { | |
105 from.selectedIndex = (from.length == from.selectedIndex + 1) ? 0 : from.selectedIndex + 1; | |
106 } | |
107 // up arrow -- wrap around | |
108 if ((event.which && event.which == 38) || (event.keyCode && event.keyCode == 38)) { | |
109 from.selectedIndex = (from.selectedIndex == 0) ? from.length - 1 : from.selectedIndex - 1; | |
110 } | |
111 return true; | |
112 } | |
113 } |