1: # The LearningOnline Network
2: # Page with Daxe on the left side and the preview on the right side
3: #
4: # $Id: daxepage.pm,v 1.13 2024/03/25 17:29:23 raeburn Exp $
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:
30: package Apache::daxepage;
31: use strict;
32:
33: use Apache::loncommon();
34: use Apache::lonnet();
35: use Apache::lonhtmlcommon();
36: use Apache::lonxml();
37: use Apache::edit();
38: use Apache::lonmenu();
39: use Apache::lonlocal;
40: use Apache::Constants qw(:common);
41: use LONCAPA qw(:DEFAULT :match);
42: use HTML::Entities();
43:
44: sub handler {
45: my $request = shift;
46: my $uri = $request->uri;
47: $uri =~ s{^/daxepage}{};
48: &Apache::loncommon::content_type($request,'text/html');
49: my ($is_not_assess,$is_assess);
50: if ($uri =~/\.(xml|html|htm|xhtml|xhtm)$/) {
51: $is_not_assess = 1;
52: } elsif ($uri =~ /$LONCAPA::assess_re/) {
53: unless ($uri =~ /\.form$/) {
54: $is_assess = 1;
55: }
56: }
57: unless ($is_not_assess || $is_assess) {
58: $request->status(406);
59: return OK;
60: }
61: my %editors = &Apache::loncommon::permitted_editors();
62: unless ($editors{'daxe'}) {
63: my $msg = '<p class="LC_warning">'.
64: &mt('Daxe editor is not enabled for this Authoring Space.').'</p>';
65: &do_redirect($request,$uri,$msg);
66: return OK;
67: }
68: if ($is_not_assess) {
69: delete($editors{'xml'});
70: $editors{'edit'} = 1;
71: }
72: my %lt = &Apache::lonlocal::texthash(
73: 'noif' => 'No iframe support.',
74: 'show' => 'Show content in pop-up window',
75: 'save' => 'Save',
76: 'oeds' => 'other editors',
77: 'othe' => 'other editor',
78: 'edit' => 'Save and Edit',
79: 'disc' => 'Discard and View',
80: 'save' => 'Save and View',
81: );
82: my $name = $uri;
83: $name =~ s/^.*\/([^\/]+)$/$1/;
84: my $lang = &Apache::lonlocal::current_language();
85: my $filearg = '/daxeopen'.$uri;
86: my $daxeurl = '/adm/daxe/daxe.html?config=config/loncapa_config.xml&save=/daxesave'.
87: '&file='.$filearg;
88: my $headjs = &Apache::loncommon::iframe_wrapper_headjs().
89: &listener_js($lang,$filearg).
90: &toggle_LCmenus_js().&saveandview_js().
91: &Apache::edit::js_change_detection();
92:
93: my ($clickexit,$clicksave,$clickedit);
94: if ($is_assess) {
95: $headjs .= &Apache::lonxml::setmode_javascript();
96: $clickexit = "javascript:setmode(this.form,'view');";
97: } else {
98: $headjs .= &Apache::lonxml::seteditor_javascript();
99: $clickexit = "javascript:seteditmode(this.form,'view');";
100: }
101: $clicksave = "javascript:daxesave('exit');";
102: $clickedit = "javascript:daxesave();";
103: my $form_events = &Apache::edit::form_change_detection();
104: my $editheader = '<form '.$form_events.' method="post" name="daxeedit" action="'.$uri.'">'.
105: '<input type="hidden" name="problemmode" value="daxe" />'."\n".
106: '<div class="LC_edit_problem_editxml_header">'."\n";
107: my $saveeditbutton = '<input type="button" name="submitmode" accesskey="s" value="'.$lt{'edit'}.
108: '" onclick="'.$clickedit.'" />'."\n";
109: my $exitbutton = '<input type="button" name="submitmode" accesskey="d" value="'.$lt{'disc'}.
110: '" onclick="'.$clickexit.'" />'."\n";
111: my $saveexitbutton = '<input type="button" name="submitmode" accesskey="v" value="'.$lt{'save'}.
112: '" onclick="'.$clicksave.'" />'."\n";
113: $editheader .= '<table class="LC_edit_problem_header_title"><tr><td>'.
114: $uri.'</td><td align="right"><span class="LC_nobreak">'.
115: $saveeditbutton.$saveexitbutton.$exitbutton.'</span>';
116: if ($editors{'edit'} || $editors{'xml'}) {
117: my $other = (($editors{'edit'} && $editors{'xml'})? $lt{'oeds'} : $lt{'othe'});
118: $editheader .= ' | <span class="LC_nobreak">'.$other.':</span> '.
119: '<span class="LC_nobreak">';
120: if ($is_not_assess) {
121: $editheader .= '<input type="hidden" name="editmode" value="" />'."\n".
122: '<input type="button" name="editordefault" value="'.$lt{'edit'}.
123: '" onclick="seteditmode(this.form,'."'edit'".');" />'."\n";
124: } else {
125: if ($editors{'edit'}) {
126: $editheader .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
127: 'onclick="javascript:setmode(this.form,'."'edit'".')" />'."\n";
128: }
129: if ($editors{'xml'}) {
130: $editheader .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
131: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />'."\n";
132: }
133: }
134: $editheader .= '</span>';
135: }
136: $editheader .= '</td></tr></table></div></form>'."\n";
137: my $start_collapsed = &collapsible_std_LCmenus();
138: my $args = {
139: 'collapsible_header' => $editheader,
140: 'start_collapsed' => $start_collapsed,
141: };
142: my $startpage = &Apache::loncommon::start_page('Daxe: '.$name,$headjs,$args).
143: &Apache::lonmenu::constspaceform();
144: my $endpage = &Apache::loncommon::end_page();
145:
146: # javascript will position the iframe if window was resized (or zoomed)
147: my $script = &Apache::loncommon::iframe_wrapper_resizejs();
148: my $dest = &HTML::Entities::encode($daxeurl,'&<>"');
149: my $noiframe = &Apache::loncommon::modal_link($dest,$lt{'show'},500,400);
150:
151: $request->print(<<"ENDFRAME");
152: $startpage
153: $script
154: <div class="LC_iframecontainer" style="padding-right: 5px">
155: <iframe src="$dest" id="lcdiframe">$lt{'noif'} $noiframe</iframe>
156: </div>
157: $endpage
158: ENDFRAME
159: return OK;
160: }
161:
162: sub listener_js {
163: my ($lang,$filearg) = @_;
164: return <<"ENDJS";
165: <script type="text/javascript">
166: //<![CDATA[
167:
168: var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
169: var eventer = window[eventMethod];
170: var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message";
171:
172: eventer(messageEvent,function(e) {
173: var reqdOrigin = window.location.protocol+'//'+window.location.hostname;
174: if (e.origin == reqdOrigin) {
175: if (e.data == '$filearg') {
176: setmode(document.daxeedit,'view');
177: } else if ((e.data == 'userlclang') || (e.data == 'userlang')) {
178: window.myIframe = document.getElementById("lcdiframe").contentWindow;
179: window.myIframe.postMessage(e.data+':$lang',reqdOrigin);
180: }
181: return;
182: }
183: },false);
184:
185: //]]>
186: </script>
187: ENDJS
188:
189: }
190:
191: sub saveandview_js {
192: return <<"ENDJS";
193:
194: <script type="text/javascript">
195: //<![CDATA[
196:
197: function daxesave(exit) {
198: window.myIframe = document.getElementById("lcdiframe").contentWindow;
199: window.myIframe.focus();
200: window.myIframe.savelcdoc(exit);
201: return;
202: }
203:
204: //]]>
205: </script>
206: ENDJS
207: }
208:
209: sub toggle_LCmenus_js {
210: my %lt = &Apache::lonlocal::texthash(
211: altc => 'menu state: collapsed',
212: alte => 'menu state: explanded',
213: ttlc => 'display standard menus',
214: ttle => 'hide standard menus',
215: );
216: return <<"ENDJS";
217: <script type="text/javascript">
218: //<![CDATA[
219: \$(document).ready (function () {
220: \$(".LC_collapse_trigger").on("click", function (e) {
221: var id = this.id;
222: var \$content = \$(this).next (".LC_menus_content");
223: var expanded = \$content.hasClass ("shown");
224: if (expanded) {
225: \$content.removeClass ("shown");
226: \$content.addClass ("hidden");
227: } else {
228: \$content.removeClass ("hidden");
229: \$content.addClass ("shown");
230: }
231:
232: \$(this).find ("[aria-expanded]")
233: .attr ("aria-expanded", !expanded);
234:
235: \$(this).find ("[aria-pressed]")
236: .attr ("aria-pressed", !expanded);
237:
238: \$(this).find (".LC_collapsible_indicator").attr ({
239: "src":
240: (expanded)? "/res/adm/pages/collapsed.png" : "/res/adm/pages/expanded.png",
241: "alt":
242: (expanded)? "$lt{altc}" : "$lt{alte}",
243: "title":
244: (expanded)? "$lt{ttlc}" : "$lt{ttle}"
245: });
246:
247: \$(window).trigger('resize');
248: \$(this).focus ();
249: });
250:
251: \$("#LC_expandingContainer").attr ("aria-live", "off");
252: });
253: //]]>
254: </script>
255: ENDJS
256:
257: }
258:
259: sub do_redirect {
260: my ($request,$uri,$msg) = @_;
261: &Apache::lonhtmlcommon::clear_breadcrumbs();
262: $request->print(
263: &Apache::loncommon::start_page('Authoring Space',undef,
264: {'redirect' => [2,$uri]}).
265:
266: '<div style="padding:0;clear:both;margin:0;border:0"></div>'."\n".
267: "$msg\n".
268: &Apache::loncommon::end_page());
269: return;
270: }
271:
272: sub collapsible_std_LCmenus {
273: my $daxecollapse = $Apache::lonnet::env{'environment.daxecollapse'};
274: unless ($daxecollapse) {
275: my %domdefs = &Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'user.domain'});
276: if ($domdefs{'daxecollapse'}) {
277: $daxecollapse = 'yes';
278: }
279: }
280: if ($daxecollapse eq 'yes') {
281: return 1;
282: }
283: return;
284: }
285:
286: 1;
287: __END__
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