Files
@ c9ac140ad960
Branch filter:
Location: website/www/conservancy/static/admin/js/admin/ordering.js
c9ac140ad960
3.7 KiB
application/javascript
add pics for the month's roundup
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | addEvent(window, 'load', reorder_init);
var lis;
var top = 0;
var left = 0;
var height = 30;
function reorder_init() {
lis = document.getElementsBySelector('ul#orderthese li');
var input = document.getElementsBySelector('input[name=order_]')[0];
setOrder(input.value.split(','));
input.disabled = true;
draw();
// Now initialise the dragging behaviour
var limit = (lis.length - 1) * height;
for (var i = 0; i < lis.length; i++) {
var li = lis[i];
var img = document.getElementById('handle'+li.id);
li.style.zIndex = 1;
Drag.init(img, li, left + 10, left + 10, top + 10, top + 10 + limit);
li.onDragStart = startDrag;
li.onDragEnd = endDrag;
img.style.cursor = 'move';
}
}
function submitOrderForm() {
var inputOrder = document.getElementsBySelector('input[name=order_]')[0];
inputOrder.value = getOrder();
inputOrder.disabled=false;
}
function startDrag() {
this.style.zIndex = '10';
this.className = 'dragging';
}
function endDrag(x, y) {
this.style.zIndex = '1';
this.className = '';
// Work out how far along it has been dropped, using x co-ordinate
var oldIndex = this.index;
var newIndex = Math.round((y - 10 - top) / height);
// 'Snap' to the correct position
this.style.top = (10 + top + newIndex * height) + 'px';
this.index = newIndex;
moveItem(oldIndex, newIndex);
}
function moveItem(oldIndex, newIndex) {
// Swaps two items, adjusts the index and left co-ord for all others
if (oldIndex == newIndex) {
return; // Nothing to swap;
}
var direction, lo, hi;
if (newIndex > oldIndex) {
lo = oldIndex;
hi = newIndex;
direction = -1;
} else {
direction = 1;
hi = oldIndex;
lo = newIndex;
}
var lis2 = new Array(); // We will build the new order in this array
for (var i = 0; i < lis.length; i++) {
if (i < lo || i > hi) {
// Position of items not between the indexes is unaffected
lis2[i] = lis[i];
continue;
} else if (i == newIndex) {
lis2[i] = lis[oldIndex];
continue;
} else {
// Item is between the two indexes - move it along 1
lis2[i] = lis[i - direction];
}
}
// Re-index everything
reIndex(lis2);
lis = lis2;
draw();
// document.getElementById('hiddenOrder').value = getOrder();
document.getElementsBySelector('input[name=order_]')[0].value = getOrder();
}
function reIndex(lis) {
for (var i = 0; i < lis.length; i++) {
lis[i].index = i;
}
}
function draw() {
for (var i = 0; i < lis.length; i++) {
var li = lis[i];
li.index = i;
li.style.position = 'absolute';
li.style.left = (10 + left) + 'px';
li.style.top = (10 + top + (i * height)) + 'px';
}
}
function getOrder() {
var order = new Array(lis.length);
for (var i = 0; i < lis.length; i++) {
order[i] = lis[i].id.substring(1, 100);
}
return order.join(',');
}
function setOrder(id_list) {
/* Set the current order to match the lsit of IDs */
var temp_lis = new Array();
for (var i = 0; i < id_list.length; i++) {
var id = 'p' + id_list[i];
temp_lis[temp_lis.length] = document.getElementById(id);
}
reIndex(temp_lis);
lis = temp_lis;
draw();
}
function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+, NS6 and Mozilla
// By Scott Andrew
{
if (elm.addEventListener){
elm.addEventListener(evType, fn, useCapture);
return true;
} else if (elm.attachEvent){
var r = elm.attachEvent("on"+evType, fn);
return r;
} else {
elm['on'+evType] = fn;
}
}
|