Annotation of loncom/interface/lonwishlistdisplay.pm, revision 1.4
1.1 wenzelju 1: # The LearningOnline Network with CAPA
2: # Routines to display the wishlist (handler)
3: #
1.4 ! raeburn 4: # $Id: lonwishlistdisplay.pm,v 1.3 2012/05/15 14:13:14 raeburn Exp $
1.1 wenzelju 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonwishlistdisplay;
30:
31: use strict;
1.3 raeburn 32: use Apache::Constants qw(:common :http);
1.1 wenzelju 33: use Apache::lonnet;
34: use Apache::loncommon();
35: use Apache::lonhtmlcommon;
36: use Apache::lonlocal;
37: use Apache::lonwishlist;
38: use LONCAPA;
39: use Tree;
40:
41:
42: # Global variables
43: my $root;
44: my @childrenRt;
45: my %TreeHash;
46:
47:
48: # ----------------------------------------------------- Main Handler, package lonwishlistdisplay
49: sub handler {
50: my ($r) = @_;
1.3 raeburn 51:
52: if ($r->header_only) {
53: &Apache::loncommon::content_type($r,'text/html');
54: $r->send_http_header;
55: return OK;
56: }
57:
1.4 ! raeburn 58: if ($env{'user.adv'}) {
1.3 raeburn 59: &Apache::loncommon::content_type($r,'text/html');
60: $r->send_http_header;
61: } else {
62: $env{'user.error.msg'}=
63: "/adm/wishlist:bre:0:0:No rights to access Stored Links";
64: return HTTP_NOT_ACCEPTABLE;
65: }
1.1 wenzelju 66:
67: if (&Apache::lonwishlist::getWishlist() ne 'error') {
68: # get wishlist entries from user-data db-file and build a tree out of these entries
69: %TreeHash = &Apache::lonwishlist::getWishlist();
70:
71: $root = &Apache::Tree::HashToTree(\%TreeHash);
72: @childrenRt = $root->children();
73:
74: # create a new entry
75: if ($env{'form.title'}) {
76: $root = &Apache::lonwishlist::newEntry($root, $env{'form.title'}, $env{'form.path'}, $env{'form.note'});
77: }
78:
79: # get unprocessed_cgi (i.e. marked entries, mode ...)
1.2 wenzelju 80: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['action','mark','markedToMove','mode','newtitle','note','rat','setTitle','setPath']);
1.1 wenzelju 81:
82: # change the order of entries within a level, that means sorting the entries
83: my $changeOrder = 0;
84: if (defined $env{'form.sel'}) {
85: my @sel = &Apache::loncommon::get_env_multiple('form.sel');
86: my $indexNode;
87: my $at;
88: for (my $s=0; $s<($#sel+1); $s++) {
89: if ($sel[$s] ne '') {
90: $indexNode = $s;
91: $at = $sel[$s]-1;
92: }
93: }
94: if ($at ne '') {
95: $changeOrder = 1;
96: $root = &Apache::lonwishlist::sortEntries($root, $indexNode,$at);
97: }
98: }
99:
100: # get all marked (checkboxes) entries
101: my @marked = ();
102: if (defined $env{'form.mark'}) {
103: @marked = &Apache::loncommon::get_env_multiple('form.mark');
104: }
105:
106: # move entries from one folder to another
107: if (defined $env{'form.markedToMove'}) {
108: my $markedToMove = $env{'form.markedToMove'};
109: my @ToMove = split(/\,/,$markedToMove);
110: my $moveTo = $env{'form.mark'};
111: if (defined $moveTo){
112: $root = &Apache::lonwishlist::moveEntries($root, \@ToMove,$moveTo);
113: }
114: $changeOrder = 1;
115:
116: }
117:
118: # delete entries
119: if ($env{'form.action'} eq 'delete') {
120: $root = &Apache::lonwishlist::deleteEntries($root, \@marked);
121: }
122:
123:
124: # get all titles and notes and save them
125: # only save, if user wants to save changes
126: # do not save, when current action is 'delete' or 'sort' or 'move'
127: my @newTitles = ();
128: my @newPaths = ();
129: my @newNotes = ();
130: if ((defined $env{'form.newtitle'} || defined $env{'form.newpath'} || defined $env{'form.newnote'})
131: && ($env{'form.action'} ne 'noSave') && ($env{'form.action'} ne 'delete') && !$changeOrder) {
132: @newTitles = &Apache::loncommon::get_env_multiple('form.newtitle');
133: @newPaths = &Apache::loncommon::get_env_multiple('form.newpath');
134: @newNotes = &Apache::loncommon::get_env_multiple('form.newnote');
135: my $node = 0;
136: foreach my $t (@newTitles) {
137: $root = &Apache::lonwishlist::setNewTitle($root, $node, $t);
138: $node++;
139: }
140: $node = 0;
141: my $path = 0;
142: for (my $i = 0; $i < ($#newTitles+1); $i++ ) {
143: if (&Apache::lonwishlist::setNewPath($root, $node, $newPaths[$path])) {
144: $path++;
145: }
146: $node++;
147: }
148: $node = 0;
149: foreach my $n (@newNotes) {
150: $root = &Apache::lonwishlist::setNewNote($root, $node, $n);
151: $node++;
152: }
153: }
154:
155: # Create HTML-markup
156: my $page;
157: if ($env{'form.mode'} eq 'edit') {
158: $page = &Apache::lonwishlist::makePage($root, "edit");
159: }
160: elsif ($env{'form.mode'} eq 'move') {
161: $page = &Apache::lonwishlist::makePage($root, "move", \@marked);
162: }
163: elsif ($env{'form.mode'} eq 'import') {
164: $page = &Apache::lonwishlist::makePageImport($root, $env{'form.rat'});
165: }
1.2 wenzelju 166: elsif ($env{'form.mode'} eq 'newLink') {
167: $page = &Apache::lonwishlist::makePopUpNewLink($env{'form.setTitle'},$env{'form.setPath'});
168: }
169: elsif ($env{'form.mode'} eq 'newFolder') {
170: $page = &Apache::lonwishlist::makePopUpNewFolder();
171: }
1.1 wenzelju 172: elsif ($env{'form.mode'} eq 'set') {
173: $page = &Apache::lonwishlist::makePageSet();
174: }
175: else {
176: $page = &Apache::lonwishlist::makePage($root, "view");
177: }
178: @marked = ();
179: $r->print($page);
180: }
181: # An error occured, print an error-page
182: else {
183: my $errorPage = &Apache::lonwishlist::makeErrorPage();
184: $r->print($errorPage);
185: }
186: return OK;
187: }
188:
189: 1;
190: __END__
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