Annotation of loncom/html/res/adm/pages/annotator/admannotations.pm, revision 1.29
1.17 albertel 1: # The LearningOnline Network with CAPA
2: # This will take annotations and then plug them into a page.
3: #
1.29 ! jms 4: # $Id: admannotations.pm,v 1.28 2008/09/11 20:44:54 tempelho 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:
1.29 ! jms 30: =pod
! 31:
! 32: =head1 NAME
! 33:
! 34: Apache::admannotations
! 35:
! 36: =head1 SYNOPSIS
! 37:
! 38: This will take annotations and then plug them into a page.
! 39:
! 40: This is part of the LearningOnline Network with CAPA project
! 41: described at http://www.lon-capa.org.
! 42:
! 43: =head1 OVERVIEW
! 44:
! 45: (empty)
! 46:
! 47: =head1 SUBROUTINES
! 48:
! 49: =over write_annotation()
! 50:
! 51: Put annotation
! 52:
! 53: =item js_get_symb()
! 54:
! 55: Construct editor
! 56:
! 57: =item construct_editor()
! 58:
! 59: =item construct_error()
! 60:
! 61: =item handler()
! 62:
! 63: =back
! 64:
! 65: =cut
! 66:
! 67:
1.2 tyszkabe 68: package Apache::admannotations;
1.1 tyszkabe 69:
70: use strict;
71: use Apache::Constants qw(:common);
1.20 albertel 72: use Apache::loncommon();
1.19 albertel 73: use Apache::lonnet;
1.23 albertel 74: use Apache::lonlocal;
1.1 tyszkabe 75:
76: # --------------------------------------------------------------Put annotation
77:
78: sub write_annotation {
1.27 albertel 79: my ($symb, $enc, $annotation) = @_;
80:
1.28 tempelho 81:
82: $annotation=~s/$^\s*$//;
1.27 albertel 83: my $key = $symb;
84: if (!$enc) {
85: $key =
86: &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]);
1.11 www 87: }
1.27 albertel 88:
89: &Apache::lonnet::put('nohist_annotations',{$key => $annotation});
1.1 tyszkabe 90: return;
91: }
92:
93:
94: # ------------------------------------------------------------Construct editor
1.27 albertel 95: sub js_get_symb {
1.26 albertel 96: return <<ENDJS;
1.27 albertel 97: function get_symb() {
98: var symb;
1.26 albertel 99: if (typeof(window.opener.clientwindow) != 'undefined') {
1.27 albertel 100: symb=window.opener.clientwindow.location.href;
1.26 albertel 101: } else {
1.27 albertel 102: symb=window.opener.location.href;
1.26 albertel 103: }
1.27 albertel 104: symb=window.opener.currentSymb;
105: return symb;
1.26 albertel 106: }
107: ENDJS
108: }
1.1 tyszkabe 109:
110: sub construct_editor {
1.27 albertel 111: my ($annotation,$symbnew) = @_;
1.13 www 112: if ($annotation=~/^error:/) { $annotation=''; }
1.21 albertel 113:
1.27 albertel 114: my $get_symb = &js_get_symb();
1.26 albertel 115:
1.24 albertel 116: my $js = <<ENDJS;
1.20 albertel 117: <script type="text/javascript">
1.12 www 118: var timeout;
119:
1.27 albertel 120: $get_symb
1.26 albertel 121:
1.12 www 122: function changed() {
1.27 albertel 123: var symbnew=get_symb();
124: if (symbnew!=document.annotInfo.symbold.value) {
125: document.annotInfo.symbnew.value=symbnew;
1.12 www 126: document.annotInfo.submit();
127: }
128: timeout=setTimeout('changed();','1000');
1.2 tyszkabe 129: }
1.1 tyszkabe 130: </script>
1.20 albertel 131: ENDJS
132:
133: my %load_items = ('onload' => "timeout=setTimeout('changed()','1000')",
134: 'onunload' => 'clearTimeout(timeout);');
135: my $start_page =
136: &Apache::loncommon::start_page('Annotations',$js,
137: {'only_body' => 1,
138: 'add_entries' => \%load_items,});
139:
140: my $end_page =
141: &Apache::loncommon::end_page();
1.23 albertel 142:
143: my %lt = ( 'close no save' => "Close (no save)",
144: 'save' => "Save and Update",);
145: %lt = &Apache::lonlocal::texthash(%lt);
146:
1.20 albertel 147: return(<<END_HTML)
148: $start_page
1.5 tyszkabe 149: <center>
1.22 albertel 150: <form name="annotInfo" method="post" action="/adm/annotations">
151: <textarea name="annotation" wrap="on" rows="12" cols="36">$annotation</textarea><br />
1.27 albertel 152: <input type="hidden" name="symbold" value="$symbnew" />
153: <input type="hidden" name="symbnew" value="" />
1.23 albertel 154: <input type="button" name="send" value="$lt{'save'}"
1.27 albertel 155: onclick="javascript:this.form.symbnew.value=get_symb();this.form.submit();" />
1.23 albertel 156: <input type="button" name="close" value="$lt{'close no save'}"
1.22 albertel 157: onclick="javascript:window.close();" />
158: </form>
1.5 tyszkabe 159: </center>
1.20 albertel 160: $end_page
1.1 tyszkabe 161: END_HTML
162: }
163:
1.7 tyszkabe 164: # ----------------------------------------------------Constructs error window
1.5 tyszkabe 165:
1.6 tyszkabe 166: sub construct_error {
1.21 albertel 167: my ($annot_error,$button_name) = @_;
1.26 albertel 168:
1.27 albertel 169: my $get_symb = &js_get_symb();
1.26 albertel 170: my $js = <<ENDJS;
171: <script type="text/javascript">
1.27 albertel 172: $get_symb
1.26 albertel 173: </script>
174: ENDJS
175:
176: my $start_page = &Apache::loncommon::start_page('Annotations',$js,
1.21 albertel 177: {'only_body' => 1,});
178: my $end_page = &Apache::loncommon::end_page();
1.20 albertel 179:
1.23 albertel 180: my %lt = ( 'close' => "Close",
181: 'button' => $button_name,);
182: %lt = &Apache::lonlocal::texthash(%lt);
183:
1.21 albertel 184: return(<<END_HTML2)
1.20 albertel 185: $start_page
1.5 tyszkabe 186: <center>
1.22 albertel 187: <form name="annotInfo" method="post" action="/adm/annotations">
1.6 tyszkabe 188: <table bgcolor="#FFFFFF" width="100%" height="90%" align="center">
1.5 tyszkabe 189: <td>
1.22 albertel 190: <font size="+1"><i>
1.6 tyszkabe 191: $annot_error
1.12 www 192: </i></font>
1.5 tyszkabe 193: </td>
194: </table>
1.27 albertel 195: <input type="hidden" name="symbold" value="" />
196: <input type="hidden" name="symbnew" value="" />
1.23 albertel 197: <input type="button" name="send" value="$lt{'button'}"
1.27 albertel 198: onclick="javascript:this.form.symbnew.value=get_symb();this.form.submit();" />
1.23 albertel 199: <input type="button" name="close" value="$lt{'close'}"
1.22 albertel 200: onclick="javascript:window.close();" />
201: </form>
1.5 tyszkabe 202: </center>
1.20 albertel 203: $end_page
1.5 tyszkabe 204: END_HTML2
205: }
206:
1.27 albertel 207:
1.7 tyszkabe 208: # ---------------------------------------------------------------Main Handler
1.1 tyszkabe 209:
210: sub handler {
1.25 albertel 211: my ($r) = @_;
212:
213: &Apache::loncommon::content_type($r,'text/html');
1.21 albertel 214: $r->send_http_header;
215: return OK if $r->header_only;
216:
217:
218: my $page;
219:
1.28 tempelho 220: my ($symb_old,$symb_old_enc) = &Apache::loncommon::clean_symb($env{'form.symbold'});
221: my ($symb_new,$symb_new_enc) = &Apache::loncommon::clean_symb($env{'form.symbnew'});
1.27 albertel 222:
1.21 albertel 223: my $annotation=$env{'form.annotation'};
224:
1.27 albertel 225: if ($symb_old) {
226: &write_annotation($symb_old,$symb_old_enc,$annotation);
1.21 albertel 227: }
1.27 albertel 228: if (exists($env{'form.symbnew'})) {
229: unless ($symb_new) {
1.25 albertel 230: $page=&construct_error(&mt("Cannot annotate current window. Please point your browser to a LON-CAPA page and then 'continue'."),"continue");
1.21 albertel 231: } else {
1.27 albertel 232: if ($symb_old ne $symb_new) {
1.28 tempelho 233: $annotation=&Apache::loncommon::get_annotation($symb_new,$symb_new_enc);
1.21 albertel 234: }
1.27 albertel 235: # pass same symb through.
236: $page=&construct_editor($annotation,$env{'form.symbnew'});
1.21 albertel 237: }
238: }
239: $r->print($page);
240: return OK;
1.1 tyszkabe 241: }
242:
243: 1;
244: __END__
1.8 tyszkabe 245:
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