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