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Location: website/www/conservancy/static/admin/js/SelectBox.js
46c50ec0b192
3.9 KiB
application/javascript
Copyleft Compliance: Minor rewrite of strategy & firmware liberation
This rewrite should improve the stand-alone nature of these documents
and allow for better integration with other summary text and
announcements on the website.
Note that they have now drifted heavily from the original formulation
of the items as grant proposals.
This rewrite should improve the stand-alone nature of these documents
and allow for better integration with other summary text and
announcements on the website.
Note that they have now drifted heavily from the original formulation
of the items as grant proposals.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | var SelectBox = {
cache: new Object(),
init: function(id) {
var box = document.getElementById(id);
var node;
SelectBox.cache[id] = new Array();
var cache = SelectBox.cache[id];
for (var i = 0; (node = box.options[i]); i++) {
cache.push({ value: node.value, text: node.text, displayed: 1 });
}
},
redisplay: function(id) {
// Repopulate HTML select box from cache
var box = document.getElementById(id);
box.options.length = 0; // clear all options
for (var i = 0, j = SelectBox.cache[id].length; i < j; i++) {
var node = SelectBox.cache[id][i];
if (node.displayed) {
box.options[box.options.length] = new Option(node.text, node.value, false, false);
}
}
},
filter: function(id, text) {
// Redisplay the HTML select box, displaying only the choices containing ALL
// the words in text. (It's an AND search.)
var tokens = text.toLowerCase().split(/\s+/);
var node, token;
for (var i = 0; (node = SelectBox.cache[id][i]); i++) {
node.displayed = 1;
for (var j = 0; (token = tokens[j]); j++) {
if (node.text.toLowerCase().indexOf(token) == -1) {
node.displayed = 0;
}
}
}
SelectBox.redisplay(id);
},
delete_from_cache: function(id, value) {
var node, delete_index = null;
for (var i = 0; (node = SelectBox.cache[id][i]); i++) {
if (node.value == value) {
delete_index = i;
break;
}
}
var j = SelectBox.cache[id].length - 1;
for (var i = delete_index; i < j; i++) {
SelectBox.cache[id][i] = SelectBox.cache[id][i+1];
}
SelectBox.cache[id].length--;
},
add_to_cache: function(id, option) {
SelectBox.cache[id].push({ value: option.value, text: option.text, displayed: 1 });
},
cache_contains: function(id, value) {
// Check if an item is contained in the cache
var node;
for (var i = 0; (node = SelectBox.cache[id][i]); i++) {
if (node.value == value) {
return true;
}
}
return false;
},
move: function(from, to) {
var from_box = document.getElementById(from);
var to_box = document.getElementById(to);
var option;
for (var i = 0; (option = from_box.options[i]); i++) {
if (option.selected && SelectBox.cache_contains(from, option.value)) {
SelectBox.add_to_cache(to, { value: option.value, text: option.text, displayed: 1 });
SelectBox.delete_from_cache(from, option.value);
}
}
SelectBox.redisplay(from);
SelectBox.redisplay(to);
},
move_all: function(from, to) {
var from_box = document.getElementById(from);
var to_box = document.getElementById(to);
var option;
for (var i = 0; (option = from_box.options[i]); i++) {
SelectBox.add_to_cache(to, { value: option.value, text: option.text, displayed: 1 });
SelectBox.delete_from_cache(from, option.value);
}
SelectBox.redisplay(from);
SelectBox.redisplay(to);
},
sort: function(id) {
SelectBox.cache[id].sort( function(a, b) {
a = a.text.toLowerCase();
b = b.text.toLowerCase();
try {
if (a > b) return 1;
if (a < b) return -1;
}
catch (e) {
// silently fail on IE 'unknown' exception
}
return 0;
} );
},
select_all: function(id) {
var box = document.getElementById(id);
for (var i = 0; i < box.options.length; i++) {
box.options[i].selected = 'selected';
}
}
}
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