Annotation of loncom/html/res/adm/pages/annotator/admannotations.pm, revision 1.22
1.17 albertel 1: # The LearningOnline Network with CAPA
2: # This will take annotations and then plug them into a page.
3: #
1.22 ! albertel 4: # $Id: admannotations.pm,v 1.21 2006/04/10 23:28:52 albertel Exp $
1.17 albertel 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.
1.1 tyszkabe 14: #
1.17 albertel 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/
1.1 tyszkabe 27: #
28: ##################
29:
1.2 tyszkabe 30: package Apache::admannotations;
1.1 tyszkabe 31:
32: use strict;
33: use Apache::Constants qw(:common);
1.20 albertel 34: use Apache::loncommon();
1.19 albertel 35: use Apache::lonnet;
1.1 tyszkabe 36:
37: # --------------------------------------------------------------Put annotation
38:
39: sub write_annotation {
1.21 albertel 40: my ($urlold, $annotation) = @_;
1.11 www 41: if ($annotation) {
1.16 albertel 42: &Apache::lonnet::put('nohist_annotations',{$urlold => $annotation});
1.11 www 43: }
1.1 tyszkabe 44: return;
45: }
46:
47: # --------------------------------------------------------------Get annotation
48:
49: sub get_annotation {
1.21 albertel 50: my ($urlnew) = @_;
1.15 albertel 51: my %annotation=&Apache::lonnet::get('nohist_annotations',[$urlnew]);
1.9 tyszkabe 52: return %annotation;
1.1 tyszkabe 53: }
54:
55: # ------------------------------------------------------------Construct editor
56:
57: sub construct_editor {
1.21 albertel 58: my ($annotation,$urlnew) = @_;
1.13 www 59: if ($annotation=~/^error:/) { $annotation=''; }
1.21 albertel 60:
1.20 albertel 61: my $js = << ENDJS;
62: <script type="text/javascript">
1.12 www 63: var timeout;
64:
65: function changed() {
66: var urlnew=window.opener.clientwindow.location.href;
67: if (urlnew!=document.annotInfo.urlold.value) {
68: document.annotInfo.urlnew.value=urlnew;
69: document.annotInfo.submit();
70: }
71: timeout=setTimeout('changed();','1000');
1.2 tyszkabe 72: }
1.1 tyszkabe 73: </script>
1.20 albertel 74: ENDJS
75:
76: my %load_items = ('onload' => "timeout=setTimeout('changed()','1000')",
77: 'onunload' => 'clearTimeout(timeout);');
78: my $start_page =
79: &Apache::loncommon::start_page('Annotations',$js,
80: {'only_body' => 1,
81: 'add_entries' => \%load_items,});
82:
83: my $end_page =
84: &Apache::loncommon::end_page();
85: return(<<END_HTML)
86: $start_page
1.5 tyszkabe 87: <center>
1.22 ! albertel 88: <form name="annotInfo" method="post" action="/adm/annotations">
! 89: <textarea name="annotation" wrap="on" rows="12" cols="36">$annotation</textarea><br />
! 90: <input type="hidden" name="urlold" value="$urlnew" />
! 91: <input type="hidden" name="urlnew" value="" />
! 92: <input type="button" name="send" value="Save and Update"
! 93: onclick="javascript:this.form.urlnew.value=window.opener.clientwindow.location.href;this.form.submit();" />
! 94: <input type="button" name="close" value="Close (no save)"
! 95: onclick="javascript:window.close();" />
! 96: </form>
1.5 tyszkabe 97: </center>
1.20 albertel 98: $end_page
1.1 tyszkabe 99: END_HTML
100: }
101:
1.7 tyszkabe 102: # ----------------------------------------------------Constructs error window
1.5 tyszkabe 103:
1.6 tyszkabe 104: sub construct_error {
1.21 albertel 105: my ($annot_error,$button_name) = @_;
106: my $start_page = &Apache::loncommon::start_page('Annotations',undef,
107: {'only_body' => 1,});
108: my $end_page = &Apache::loncommon::end_page();
1.20 albertel 109:
1.21 albertel 110: return(<<END_HTML2)
1.20 albertel 111: $start_page
1.5 tyszkabe 112: <center>
1.22 ! albertel 113: <form name="annotInfo" method="post" action="/adm/annotations">
1.6 tyszkabe 114: <table bgcolor="#FFFFFF" width="100%" height="90%" align="center">
1.5 tyszkabe 115: <td>
1.22 ! albertel 116: <font size="+1"><i>
1.6 tyszkabe 117: $annot_error
1.12 www 118: </i></font>
1.5 tyszkabe 119: </td>
120: </table>
1.22 ! albertel 121: <input type="hidden" name="urlold" value="" />
! 122: <input type="hidden" name="urlnew" value="" />
! 123: <input type="button" name="send" value="$button_name"
! 124: onclick="javascript:this.form.urlnew.value=window.opener.clientwindow.location.href;this.form.submit();" />
! 125: <input type="button" name="close" value="Close"
! 126: onclick="javascript:window.close();" />
! 127: </form>
1.5 tyszkabe 128: </center>
1.20 albertel 129: $end_page
1.5 tyszkabe 130: END_HTML2
131: }
132:
1.7 tyszkabe 133: # ---------------------------------------------------------------Main Handler
1.1 tyszkabe 134:
135: sub handler {
1.21 albertel 136: my $r=shift;
1.11 www 137:
1.21 albertel 138: $r->content_type('text/html');
139: $r->send_http_header;
140: return OK if $r->header_only;
141:
142:
143: my $page;
144: my %annot_hash;
145:
146: my $urlold=$env{'form.urlold'};
147: $urlold=~s/^http\:\/\///;
148: $urlold=~s/^[^\/]+//;
149: $urlold=~s/\?.*$//;
150: my $urlnew=$env{'form.urlnew'};
151: $urlnew=~s/^http\:\/\///;
152: $urlnew=~s/^[^\/]+//;
153: $urlnew=~s/\?.*$//;
154: my $annotation=$env{'form.annotation'};
155:
156: if ($urlold) {
157: &write_annotation($urlold,$annotation);
158: }
159: if (exists($env{'form.urlnew'})) {
160: unless ($urlnew) {
161: $page=&construct_error("Cannot annotate current window. Please point your browser to a LON-CAPA page and then 'continue'.","continue");
162: } else {
163: if ($urlold eq $urlnew) {
164: $annot_hash{$urlnew}=$annotation;
165: } else {
166: %annot_hash=&get_annotation($urlnew);
167: }
168: $page=&construct_editor($annot_hash{$urlnew},$env{'form.urlnew'});
169: }
170: }
171: $r->print($page);
172: return OK;
1.1 tyszkabe 173: }
174:
175: 1;
176: __END__
1.8 tyszkabe 177:
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