aboutsummaryrefslogtreecommitdiffstats
path: root/js/change-columns.js
blob: 5fd5c1085dde0b567a96e8489d4ae996b5291c43 (plain)
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
138
139
140
141
142
143
144
145
/*# The contents of this file are subject to the Mozilla Public
  # License Version 1.1 (the "License"); you may not use this file
  # except in compliance with the License. You may obtain a copy of
  # the License at http://www.mozilla.org/MPL/
  #
  # Software distributed under the License is distributed on an "AS
  # IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  # implied. See the License for the specific language governing
  # rights and limitations under the License.
  #
  # The Original Code is the Bugzilla Bug Tracking System.
  #
  # The Initial Developer of the Original Code is Pascal Held.
  #
  # Contributor(s): Pascal Held <paheld@gmail.com>
  #
*/

function initChangeColumns() {
    window.onunload = unload;
    var av_select = document.getElementById("available_columns");
    var sel_select = document.getElementById("selected_columns");
    document.getElementById("avail_header").style.display = "inline";
    document.getElementById("available_columns").style.display = "inline";
    document.getElementById("select_button").style.display = "inline";
    document.getElementById("deselect_button").style.display = "inline";
    document.getElementById("up_button").style.display = "inline";
    document.getElementById("down_button").style.display = "inline";
    switch_options(sel_select, av_select, false);
    sel_select.selectedIndex = -1;
    updateView();
}

function switch_options(from_box, to_box, selected) {
    for (var i = 0; i<from_box.options.length; i++) {
        var opt = from_box.options[i];
        if (opt.selected == selected) {
            var newopt = new Option(opt.text, opt.value, opt.defaultselected, opt.selected);
            to_box.options[to_box.options.length] = newopt;
            from_box.options[i] = null;
            i = i - 1;
        }
        
    }
}

function move_select() {
    var av_select = document.getElementById("available_columns");
    var sel_select = document.getElementById("selected_columns");
    switch_options(av_select, sel_select, true);
    updateView();
}

function move_deselect() {
    var av_select = document.getElementById("available_columns");
    var sel_select = document.getElementById("selected_columns");
    switch_options(sel_select, av_select, true);
    updateView();
}

function move_up() {
    var sel_select = document.getElementById("selected_columns");
    var last = sel_select.options[0];
    var dummy = new Option("", "", false, false);
    for (var i = 1; i<sel_select.options.length; i++) {
        var opt = sel_select.options[i];
        if (opt.selected) {
            sel_select.options[i] = dummy;
            sel_select.options[i-1] = opt;
            sel_select.options[i] = last;
        }
        else{
            last = opt;
        }        
    }
    updateView();
}

function move_down() {
    var sel_select = document.getElementById("selected_columns");
    var last = sel_select.options[sel_select.options.length-1];
    var dummy = new Option("", "", false, false);
    for (var i = sel_select.options.length-2; i >= 0; i--) {
        var opt = sel_select.options[i];
        if (opt.selected) {
            sel_select.options[i] = dummy;
            sel_select.options[i + 1] = opt;
            sel_select.options[i] = last;
        }
        else{
            last = opt;
        }        
    }
    updateView();
}

function updateView() {
    var select_button = document.getElementById("select_button");
    var deselect_button = document.getElementById("deselect_button");
    var up_button = document.getElementById("up_button");
    var down_button = document.getElementById("down_button");
    select_button.disabled = true;
    deselect_button.disabled = true;
    up_button.disabled = true;
    down_button.disabled = true;
    var av_select = document.getElementById("available_columns");
    var sel_select = document.getElementById("selected_columns");
    for (var i = 0; i < av_select.options.length;  i++) {
        if (av_select.options[i].selected) {
            select_button.disabled = false;
            break;
        }
    }
    for (var i = 0; i < sel_select.options.length; i++) {
        if (sel_select.options[i].selected) {
            deselect_button.disabled = false;
            up_button.disabled = false;
            down_button.disabled = false;
            break;
        }
    }
    if (sel_select.options.length > 0) {
        if (sel_select.options[0].selected) {
            up_button.disabled = true;
        }
        if (sel_select.options[sel_select.options.length - 1].selected) {
            down_button.disabled = true;
        }
    }
}

function change_submit() {
    var sel_select = document.getElementById("selected_columns");
    for (var i = 0; i < sel_select.options.length; i++) {
        sel_select.options[i].selected = true;
    }
    return false;
}

function unload() {
	var sel_select = document.getElementById("selected_columns");
    for (var i = 0; i < sel_select.options.length; i++) {
        sel_select.options[i].selected = true;
    }
}