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1/** @licstart The following is the entire license notice for the
2 * JavaScript code in this page.
3 *
4 * Copyright: (c) 2011-2015 Sébastien SAUVAGE <sebsauvage@sebsauvage.net>
5 * (c) 2011-2017 The Shaarli Community, see AUTHORS
6 *
7 * This software is provided 'as-is', without any express or implied warranty.
8 * In no event will the authors be held liable for any damages arising from
9 * the use of this software.
10 *
11 * Permission is granted to anyone to use this software for any purpose,
12 * including commercial applications, and to alter it and redistribute it
13 * freely, subject to the following restrictions:
14 *
15 * 1. The origin of this software must not be misrepresented; you must not
16 * claim that you wrote the original software. If you use this software
17 * in a product, an acknowledgment in the product documentation would
18 * be appreciated but is not required.
19 *
20 * 2. Altered source versions must be plainly marked as such, and must
21 * not be misrepresented as being the original software.
22 *
23 * 3. This notice may not be removed or altered from any source distribution.
24 *
25 * @licend The above is the entire license notice
26 * for the JavaScript code in this page.
27 */
28
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29/**
30 * Change the position counter of a row.
31 *
32 * @param elem Element Node to change.
33 * @param toPos int New position.
34 */
35function changePos(elem, toPos)
36{
37 var elemName = elem.getAttribute('data-line')
38
39 elem.setAttribute('data-order', toPos);
40 var hiddenInput = document.querySelector('[name="order_'+ elemName +'"]');
41 hiddenInput.setAttribute('value', toPos);
42}
43
44/**
45 * Move a row up or down.
46 *
47 * @param pos Element Node to move.
48 * @param move int Move: +1 (down) or -1 (up)
49 */
50function changeOrder(pos, move)
51{
52 var newpos = parseInt(pos) + move;
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53 var lines = document.querySelectorAll('[data-order="'+ pos +'"]');
54 var changelines = document.querySelectorAll('[data-order="'+ newpos +'"]');
55
56 // If we go down reverse lines to preserve the rows order
57 if (move > 0) {
58 lines = [].slice.call(lines).reverse();
59 }
60
61 for (var i = 0 ; i < lines.length ; i++) {
62 var parent = changelines[0].parentNode;
63 changePos(lines[i], newpos);
64 changePos(changelines[i], parseInt(pos));
65 var changeItem = move < 0 ? changelines[0] : changelines[changelines.length - 1].nextSibling;
66 parent.insertBefore(lines[i], changeItem);
67 }
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69}
70
71/**
72 * Move a row up in the table.
73 *
74 * @param pos int row counter.
75 *
76 * @returns false
77 */
78function orderUp(pos)
79{
80 if (pos == 0) {
81 return false;
82 }
83 changeOrder(pos, -1);
84 return false;
85}
86
87/**
88 * Move a row down in the table.
89 *
90 * @param pos int row counter.
91 *
92 * @returns false
93 */
94function orderDown(pos)
95{
96 var lastpos = document.querySelector('[data-order]:last-child').getAttribute('data-order');
97 if (pos == lastpos) {
98 return false;
99 }
100
101 changeOrder(pos, +1);
102 return false;
103}