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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 if (field_id.match(/__prefix__/)){ |
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20 // Don't intialize on empty forms. |
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21 return; |
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22 } |
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23 var from_box = document.getElementById(field_id); |
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24 from_box.id += '_from'; // change its ID |
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25 from_box.className = 'filtered'; |
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26 |
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27 // Remove <p class="info">, because it just gets in the way. |
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28 var ps = from_box.parentNode.getElementsByTagName('p'); |
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29 for (var i=0; i<ps.length; i++) { |
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30 from_box.parentNode.removeChild(ps[i]); |
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31 } |
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32 |
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33 // <div class="selector"> or <div class="selector stacked"> |
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34 var selector_div = quickElement('div', from_box.parentNode); |
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35 selector_div.className = is_stacked ? 'selector stacked' : 'selector'; |
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36 |
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37 // <div class="selector-available"> |
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38 var selector_available = quickElement('div', selector_div, ''); |
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39 selector_available.className = 'selector-available'; |
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40 quickElement('h2', selector_available, interpolate(gettext('Available %s'), [field_name])); |
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41 var filter_p = quickElement('p', selector_available, ''); |
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42 filter_p.className = 'selector-filter'; |
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43 quickElement('img', filter_p, '', 'src', admin_media_prefix + 'img/admin/selector-search.gif'); |
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44 filter_p.appendChild(document.createTextNode(' ')); |
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45 var filter_input = quickElement('input', filter_p, '', 'type', 'text'); |
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46 filter_input.id = field_id + '_input'; |
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47 selector_available.appendChild(from_box); |
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48 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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49 choose_all.className = 'selector-chooseall'; |
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50 |
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51 // <ul class="selector-chooser"> |
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52 var selector_chooser = quickElement('ul', selector_div, ''); |
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53 selector_chooser.className = 'selector-chooser'; |
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54 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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55 add_link.className = 'selector-add'; |
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56 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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57 remove_link.className = 'selector-remove'; |
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58 |
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59 // <div class="selector-chosen"> |
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60 var selector_chosen = quickElement('div', selector_div, ''); |
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61 selector_chosen.className = 'selector-chosen'; |
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62 quickElement('h2', selector_chosen, interpolate(gettext('Chosen %s'), [field_name])); |
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63 var selector_filter = quickElement('p', selector_chosen, gettext('Select your choice(s) and click ')); |
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64 selector_filter.className = 'selector-filter'; |
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65 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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66 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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67 to_box.className = 'filtered'; |
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68 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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69 clear_all.className = 'selector-clearall'; |
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70 |
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71 from_box.setAttribute('name', from_box.getAttribute('name') + '_old'); |
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72 |
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73 // Set up the JavaScript event handlers for the select box filter interface |
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74 addEvent(filter_input, 'keyup', function(e) { SelectFilter.filter_key_up(e, field_id); }); |
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75 addEvent(filter_input, 'keydown', function(e) { SelectFilter.filter_key_down(e, field_id); }); |
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76 addEvent(from_box, 'dblclick', function() { SelectBox.move(field_id + '_from', field_id + '_to'); }); |
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77 addEvent(to_box, 'dblclick', function() { SelectBox.move(field_id + '_to', field_id + '_from'); }); |
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78 addEvent(findForm(from_box), 'submit', function() { SelectBox.select_all(field_id + '_to'); }); |
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79 SelectBox.init(field_id + '_from'); |
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80 SelectBox.init(field_id + '_to'); |
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81 // Move selected from_box options to to_box |
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82 SelectBox.move(field_id + '_from', field_id + '_to'); |
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83 }, |
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84 filter_key_up: function(event, field_id) { |
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85 from = document.getElementById(field_id + '_from'); |
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86 // don't submit form if user pressed Enter |
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87 if ((event.which && event.which == 13) || (event.keyCode && event.keyCode == 13)) { |
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88 from.selectedIndex = 0; |
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89 SelectBox.move(field_id + '_from', field_id + '_to'); |
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90 from.selectedIndex = 0; |
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91 return false; |
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92 } |
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93 var temp = from.selectedIndex; |
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94 SelectBox.filter(field_id + '_from', document.getElementById(field_id + '_input').value); |
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95 from.selectedIndex = temp; |
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96 return true; |
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97 }, |
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98 filter_key_down: function(event, field_id) { |
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99 from = document.getElementById(field_id + '_from'); |
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100 // right arrow -- move across |
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101 if ((event.which && event.which == 39) || (event.keyCode && event.keyCode == 39)) { |
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102 var old_index = from.selectedIndex; |
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103 SelectBox.move(field_id + '_from', field_id + '_to'); |
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104 from.selectedIndex = (old_index == from.length) ? from.length - 1 : old_index; |
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105 return false; |
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106 } |
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107 // down arrow -- wrap around |
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108 if ((event.which && event.which == 40) || (event.keyCode && event.keyCode == 40)) { |
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109 from.selectedIndex = (from.length == from.selectedIndex + 1) ? 0 : from.selectedIndex + 1; |
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110 } |
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111 // up arrow -- wrap around |
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112 if ((event.which && event.which == 38) || (event.keyCode && event.keyCode == 38)) { |
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113 from.selectedIndex = (from.selectedIndex == 0) ? from.length - 1 : from.selectedIndex - 1; |
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114 } |
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115 return true; |
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116 } |
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117 } |