Annotation of loncom/html/res/adm/pages/annotator/admannotations.pm, revision 1.26
1.17 albertel 1: # The LearningOnline Network with CAPA
2: # This will take annotations and then plug them into a page.
3: #
1.26 ! albertel 4: # $Id: admannotations.pm,v 1.25 2006/04/11 15:52:33 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;
1.23 albertel 36: use Apache::lonlocal;
1.1 tyszkabe 37:
38: # --------------------------------------------------------------Put annotation
39:
40: sub write_annotation {
1.21 albertel 41: my ($urlold, $annotation) = @_;
1.11 www 42: if ($annotation) {
1.23 albertel 43: &Apache::lonnet::put('nohist_annotations',{$urlold => $annotation});
1.11 www 44: }
1.1 tyszkabe 45: return;
46: }
47:
48: # --------------------------------------------------------------Get annotation
49:
50: sub get_annotation {
1.21 albertel 51: my ($urlnew) = @_;
1.15 albertel 52: my %annotation=&Apache::lonnet::get('nohist_annotations',[$urlnew]);
1.9 tyszkabe 53: return %annotation;
1.1 tyszkabe 54: }
55:
56: # ------------------------------------------------------------Construct editor
1.26 ! albertel 57: sub js_get_url {
! 58: return <<ENDJS;
! 59: function get_url() {
! 60: var url;
! 61: if (typeof(window.opener.clientwindow) != 'undefined') {
! 62: url=window.opener.clientwindow.location.href;
! 63: } else {
! 64: url=window.opener.location.href;
! 65: }
! 66: return url;
! 67: }
! 68: ENDJS
! 69: }
1.1 tyszkabe 70:
71: sub construct_editor {
1.21 albertel 72: my ($annotation,$urlnew) = @_;
1.13 www 73: if ($annotation=~/^error:/) { $annotation=''; }
1.21 albertel 74:
1.26 ! albertel 75: my $get_url = &js_get_url();
! 76:
1.24 albertel 77: my $js = <<ENDJS;
1.20 albertel 78: <script type="text/javascript">
1.12 www 79: var timeout;
80:
1.26 ! albertel 81: $get_url
! 82:
1.12 www 83: function changed() {
1.26 ! albertel 84: var urlnew=get_url();
1.12 www 85: if (urlnew!=document.annotInfo.urlold.value) {
86: document.annotInfo.urlnew.value=urlnew;
87: document.annotInfo.submit();
88: }
89: timeout=setTimeout('changed();','1000');
1.2 tyszkabe 90: }
1.1 tyszkabe 91: </script>
1.20 albertel 92: ENDJS
93:
94: my %load_items = ('onload' => "timeout=setTimeout('changed()','1000')",
95: 'onunload' => 'clearTimeout(timeout);');
96: my $start_page =
97: &Apache::loncommon::start_page('Annotations',$js,
98: {'only_body' => 1,
99: 'add_entries' => \%load_items,});
100:
101: my $end_page =
102: &Apache::loncommon::end_page();
1.23 albertel 103:
104: my %lt = ( 'close no save' => "Close (no save)",
105: 'save' => "Save and Update",);
106: %lt = &Apache::lonlocal::texthash(%lt);
107:
1.20 albertel 108: return(<<END_HTML)
109: $start_page
1.5 tyszkabe 110: <center>
1.22 albertel 111: <form name="annotInfo" method="post" action="/adm/annotations">
112: <textarea name="annotation" wrap="on" rows="12" cols="36">$annotation</textarea><br />
113: <input type="hidden" name="urlold" value="$urlnew" />
114: <input type="hidden" name="urlnew" value="" />
1.23 albertel 115: <input type="button" name="send" value="$lt{'save'}"
1.26 ! albertel 116: onclick="javascript:this.form.urlnew.value=get_url();this.form.submit();" />
1.23 albertel 117: <input type="button" name="close" value="$lt{'close no save'}"
1.22 albertel 118: onclick="javascript:window.close();" />
119: </form>
1.5 tyszkabe 120: </center>
1.20 albertel 121: $end_page
1.1 tyszkabe 122: END_HTML
123: }
124:
1.7 tyszkabe 125: # ----------------------------------------------------Constructs error window
1.5 tyszkabe 126:
1.6 tyszkabe 127: sub construct_error {
1.21 albertel 128: my ($annot_error,$button_name) = @_;
1.26 ! albertel 129:
! 130: my $get_url = &js_get_url();
! 131: my $js = <<ENDJS;
! 132: <script type="text/javascript">
! 133: $get_url
! 134: </script>
! 135: ENDJS
! 136:
! 137: my $start_page = &Apache::loncommon::start_page('Annotations',$js,
1.21 albertel 138: {'only_body' => 1,});
139: my $end_page = &Apache::loncommon::end_page();
1.20 albertel 140:
1.23 albertel 141: my %lt = ( 'close' => "Close",
142: 'button' => $button_name,);
143: %lt = &Apache::lonlocal::texthash(%lt);
144:
1.21 albertel 145: return(<<END_HTML2)
1.20 albertel 146: $start_page
1.5 tyszkabe 147: <center>
1.22 albertel 148: <form name="annotInfo" method="post" action="/adm/annotations">
1.6 tyszkabe 149: <table bgcolor="#FFFFFF" width="100%" height="90%" align="center">
1.5 tyszkabe 150: <td>
1.22 albertel 151: <font size="+1"><i>
1.6 tyszkabe 152: $annot_error
1.12 www 153: </i></font>
1.5 tyszkabe 154: </td>
155: </table>
1.22 albertel 156: <input type="hidden" name="urlold" value="" />
157: <input type="hidden" name="urlnew" value="" />
1.23 albertel 158: <input type="button" name="send" value="$lt{'button'}"
1.26 ! albertel 159: onclick="javascript:this.form.urlnew.value=get_url();this.form.submit();" />
1.23 albertel 160: <input type="button" name="close" value="$lt{'close'}"
1.22 albertel 161: onclick="javascript:window.close();" />
162: </form>
1.5 tyszkabe 163: </center>
1.20 albertel 164: $end_page
1.5 tyszkabe 165: END_HTML2
166: }
167:
1.7 tyszkabe 168: # ---------------------------------------------------------------Main Handler
1.1 tyszkabe 169:
170: sub handler {
1.25 albertel 171: my ($r) = @_;
172:
173: &Apache::loncommon::content_type($r,'text/html');
1.21 albertel 174: $r->send_http_header;
175: return OK if $r->header_only;
176:
177:
178: my $page;
179: my %annot_hash;
180:
181: my $urlold=$env{'form.urlold'};
182: $urlold=~s/^http\:\/\///;
183: $urlold=~s/^[^\/]+//;
184: $urlold=~s/\?.*$//;
185: my $urlnew=$env{'form.urlnew'};
186: $urlnew=~s/^http\:\/\///;
187: $urlnew=~s/^[^\/]+//;
188: $urlnew=~s/\?.*$//;
189: my $annotation=$env{'form.annotation'};
190:
191: if ($urlold) {
192: &write_annotation($urlold,$annotation);
193: }
194: if (exists($env{'form.urlnew'})) {
195: unless ($urlnew) {
1.25 albertel 196: $page=&construct_error(&mt("Cannot annotate current window. Please point your browser to a LON-CAPA page and then 'continue'."),"continue");
1.21 albertel 197: } else {
198: if ($urlold eq $urlnew) {
199: $annot_hash{$urlnew}=$annotation;
200: } else {
201: %annot_hash=&get_annotation($urlnew);
202: }
203: $page=&construct_editor($annot_hash{$urlnew},$env{'form.urlnew'});
204: }
205: }
206: $r->print($page);
207: return OK;
1.1 tyszkabe 208: }
209:
210: 1;
211: __END__
1.8 tyszkabe 212:
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