Annotation of loncom/html/res/adm/pages/annotator/admannotations.pm, revision 1.20
1.17 albertel 1: # The LearningOnline Network with CAPA
2: # This will take annotations and then plug them into a page.
3: #
1.20 ! albertel 4: # $Id: admannotations.pm,v 1.19 2005/04/07 06:56:22 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 {
1.11 www 40: my $urlold=shift;
1.4 tyszkabe 41: my $annotation=shift;
1.11 www 42: if ($annotation) {
1.16 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 {
1.8 tyszkabe 51: my $urlnew=shift;
1.15 albertel 52: my %annotation=&Apache::lonnet::get('nohist_annotations',[$urlnew]);
1.9 tyszkabe 53: return %annotation;
1.1 tyszkabe 54: }
55:
56: # ------------------------------------------------------------Construct editor
57:
58: sub construct_editor {
1.8 tyszkabe 59: my $annotation=shift;
1.13 www 60: if ($annotation=~/^error:/) { $annotation=''; }
1.8 tyszkabe 61: my $urlnew=shift;
1.20 ! albertel 62: my $js = << ENDJS;
! 63: <script type="text/javascript">
1.12 www 64: var timeout;
65:
66: function changed() {
67: var urlnew=window.opener.clientwindow.location.href;
68: if (urlnew!=document.annotInfo.urlold.value) {
69: document.annotInfo.urlnew.value=urlnew;
70: document.annotInfo.submit();
71: }
72: timeout=setTimeout('changed();','1000');
1.2 tyszkabe 73: }
1.1 tyszkabe 74: </script>
1.20 ! albertel 75: ENDJS
! 76:
! 77: my %load_items = ('onload' => "timeout=setTimeout('changed()','1000')",
! 78: 'onunload' => 'clearTimeout(timeout);');
! 79: my $start_page =
! 80: &Apache::loncommon::start_page('Annotations',$js,
! 81: {'only_body' => 1,
! 82: 'add_entries' => \%load_items,});
! 83:
! 84: my $end_page =
! 85: &Apache::loncommon::end_page();
! 86: return(<<END_HTML)
! 87: $start_page
1.5 tyszkabe 88: <center>
1.12 www 89: <FORM name="annotInfo" method="post" action="/adm/annotations">
1.8 tyszkabe 90: <TEXTAREA NAME="annotation" WRAP=ON ROWS=12 COLS=36>$annotation</TEXTAREA><br>
1.12 www 91: <INPUT TYPE="hidden" name="urlold" value="$urlnew">
1.8 tyszkabe 92: <INPUT TYPE="hidden" name="urlnew" value="">
1.12 www 93: <INPUT TYPE=button name=send value="Save and Update"
94: onClick=
95: "javascript:this.form.urlnew.value=window.opener.clientwindow.location.href;this.form.submit();">
96: <INPUT TYPE=button name="close" value="Close (no save)" onClick="javascript:window.close();">
1.5 tyszkabe 97: </FORM>
98: </center>
1.20 ! albertel 99: $end_page
1.1 tyszkabe 100: END_HTML
101: }
102:
1.7 tyszkabe 103: # ----------------------------------------------------Constructs error window
1.5 tyszkabe 104:
1.6 tyszkabe 105: sub construct_error {
1.20 ! albertel 106: my ($annot_error,$button_name) = @_;
! 107: my $start_page = &Apache::loncommon::start_page('Annotations',undef,
! 108: {'only_body' => 1,});
! 109: my $end_page = &Apache::loncommon::end_page();
! 110:
1.5 tyszkabe 111: return(<<END_HTML2)
1.20 ! albertel 112: $start_page
1.5 tyszkabe 113: <center>
1.12 www 114: <FORM name="annotInfo" method="post" action="/adm/annotations">
1.6 tyszkabe 115: <table bgcolor="#FFFFFF" width="100%" height="90%" align="center">
1.5 tyszkabe 116: <td>
1.12 www 117: <font size=+1><i>
1.6 tyszkabe 118: $annot_error
1.12 www 119: </i></font>
1.5 tyszkabe 120: </td>
121: </table>
1.12 www 122: <INPUT TYPE="hidden" name="urlold" value="">
1.8 tyszkabe 123: <INPUT TYPE="hidden" name="urlnew" value="">
1.12 www 124: <INPUT TYPE=button name=send value="$button_name"
125: onClick=
126: "javascript:this.form.urlnew.value=window.opener.clientwindow.location.href;this.form.submit();">
127: <INPUT TYPE=button name="close" value="Close" onClick="javascript:window.close();">
1.5 tyszkabe 128: </FORM>
129: </center>
1.20 ! albertel 130: $end_page
1.5 tyszkabe 131: END_HTML2
132: }
133:
1.7 tyszkabe 134: # ---------------------------------------------------------------Main Handler
1.1 tyszkabe 135:
136: sub handler {
1.5 tyszkabe 137: my $r=shift;
1.11 www 138:
139: $r->content_type('text/html');
140: $r->send_http_header;
141: return OK if $r->header_only;
142:
143:
1.8 tyszkabe 144: my $page;
1.9 tyszkabe 145: my %annot_hash;
1.12 www 146:
1.19 albertel 147: my $urlold=$env{'form.urlold'};
1.12 www 148: $urlold=~s/^http\:\/\///;
149: $urlold=~s/^[^\/]+//;
1.18 www 150: $urlold=~s/\?.*$//;
1.19 albertel 151: my $urlnew=$env{'form.urlnew'};
1.12 www 152: $urlnew=~s/^http\:\/\///;
153: $urlnew=~s/^[^\/]+//;
1.18 www 154: $urlnew=~s/\?.*$//;
1.19 albertel 155: my $annotation=$env{'form.annotation'};
1.12 www 156:
157: if ($urlold) {
1.8 tyszkabe 158: write_annotation($urlold,$annotation);
1.5 tyszkabe 159: }
1.19 albertel 160: if (exists($env{'form.urlnew'})) {
1.12 www 161: unless ($urlnew) {
162: $page=construct_error("Cannot annotate current window. Please point your browser to a LON-CAPA page and then 'continue'.","continue");
1.7 tyszkabe 163: } else {
1.8 tyszkabe 164: if ($urlold eq $urlnew) {
1.9 tyszkabe 165: $annot_hash{$urlnew}=$annotation;
1.8 tyszkabe 166: } else {
1.9 tyszkabe 167: %annot_hash=get_annotation($urlnew);
1.8 tyszkabe 168: }
1.19 albertel 169: $page=construct_editor($annot_hash{$urlnew},$env{'form.urlnew'});
1.7 tyszkabe 170: }
1.5 tyszkabe 171: }
1.8 tyszkabe 172: $r->print($page);
1.5 tyszkabe 173: return OK;
1.1 tyszkabe 174: }
175:
176: 1;
177: __END__
1.8 tyszkabe 178:
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