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root / env / lib / python2.7 / site-packages / django / contrib / admin / static / admin / js / SelectBox.js @ 1a305335

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1 1a305335 officers 
var SelectBox = {
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    cache: new Object(),
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    init: function(id) {
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        var box = document.getElementById(id);
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        var node;
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        SelectBox.cache[id] = new Array();
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        var cache = SelectBox.cache[id];
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        for (var i = 0; (node = box.options[i]); i++) {
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            cache.push({value: node.value, text: node.text, displayed: 1});
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        }
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    },
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    redisplay: function(id) {
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        // Repopulate HTML select box from cache
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        var box = document.getElementById(id);
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        box.options.length = 0; // clear all options
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        for (var i = 0, j = SelectBox.cache[id].length; i < j; i++) {
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            var node = SelectBox.cache[id][i];
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            if (node.displayed) {
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                box.options[box.options.length] = new Option(node.text, node.value, false, false);
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            }
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        }
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    },
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    filter: function(id, text) {
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        // Redisplay the HTML select box, displaying only the choices containing ALL
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        // the words in text. (It's an AND search.)
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        var tokens = text.toLowerCase().split(/\s+/);
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        var node, token;
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        for (var i = 0; (node = SelectBox.cache[id][i]); i++) {
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            node.displayed = 1;
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            for (var j = 0; (token = tokens[j]); j++) {
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                if (node.text.toLowerCase().indexOf(token) == -1) {
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                    node.displayed = 0;
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                }
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            }
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        }
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        SelectBox.redisplay(id);
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    },
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    delete_from_cache: function(id, value) {
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        var node, delete_index = null;
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        for (var i = 0; (node = SelectBox.cache[id][i]); i++) {
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            if (node.value == value) {
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                delete_index = i;
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                break;
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            }
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        }
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        var j = SelectBox.cache[id].length - 1;
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        for (var i = delete_index; i < j; i++) {
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            SelectBox.cache[id][i] = SelectBox.cache[id][i+1];
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        }
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        SelectBox.cache[id].length--;
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    },
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    add_to_cache: function(id, option) {
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        SelectBox.cache[id].push({value: option.value, text: option.text, displayed: 1});
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    },
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    cache_contains: function(id, value) {
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        // Check if an item is contained in the cache
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        var node;
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        for (var i = 0; (node = SelectBox.cache[id][i]); i++) {
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            if (node.value == value) {
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                return true;
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            }
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        }
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        return false;
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    },
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    move: function(from, to) {
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        var from_box = document.getElementById(from);
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        var to_box = document.getElementById(to);
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        var option;
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        for (var i = 0; (option = from_box.options[i]); i++) {
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            if (option.selected && SelectBox.cache_contains(from, option.value)) {
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                SelectBox.add_to_cache(to, {value: option.value, text: option.text, displayed: 1});
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                SelectBox.delete_from_cache(from, option.value);
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            }
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        }
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        SelectBox.redisplay(from);
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        SelectBox.redisplay(to);
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    },
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    move_all: function(from, to) {
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        var from_box = document.getElementById(from);
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        var to_box = document.getElementById(to);
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        var option;
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        for (var i = 0; (option = from_box.options[i]); i++) {
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            if (SelectBox.cache_contains(from, option.value)) {
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                SelectBox.add_to_cache(to, {value: option.value, text: option.text, displayed: 1});
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                SelectBox.delete_from_cache(from, option.value);
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            }
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        }
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        SelectBox.redisplay(from);
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        SelectBox.redisplay(to);
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    },
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    sort: function(id) {
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        SelectBox.cache[id].sort( function(a, b) {
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            a = a.text.toLowerCase();
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            b = b.text.toLowerCase();
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            try {
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                if (a > b) return 1;
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                if (a < b) return -1;
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            }
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            catch (e) {
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                // silently fail on IE 'unknown' exception
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            }
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            return 0;
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        } );
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    },
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    select_all: function(id) {
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        var box = document.getElementById(id);
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        for (var i = 0; i < box.options.length; i++) {
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            box.options[i].selected = 'selected';
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        }
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    }
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}