Annotation of loncom/homework/edit.pm, revision 1.17
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
3: # 3/20 Guy
4: package Apache::edit;
5:
6: use strict;
7: use Apache::lonnet;
8:
1.10 albertel 9: # Global Vars
10: # default list of colors to use in editing
11: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
12: # depth of nesting of edit
13: $Apache::edit::colordepth=0;
14:
15: sub initialize_edit {
16: $Apache::edit::colordepth=0;
17: }
18:
1.1 albertel 19: sub tag_start {
1.9 albertel 20: my ($target,$token,$description) = @_;
1.1 albertel 21: my $result='';
1.5 albertel 22: if ($target eq "edit") {
1.4 albertel 23: my $tag=$token->[1];
1.9 albertel 24: if (!$description) { $description="<$tag>"; }
1.10 albertel 25: $result.= &start_table($token)."<tr><td>$description</td>
1.14 albertel 26: <td>Delete".
1.8 albertel 27: &deletelist($target,$token)
28: ."</td>
1.4 albertel 29: <td>".
1.8 albertel 30: &insertlist($target,$token).
1.4 albertel 31: "</td>
1.1 albertel 32: </tr><tr><td colspan=\"3\">\n";
1.4 albertel 33: }
1.1 albertel 34: return $result;
35: }
36:
37: sub tag_end {
1.9 albertel 38: my ($target,$token,$description) = @_;
1.1 albertel 39: my $result='';
1.4 albertel 40: if ($target eq 'edit') {
41: my $tag=$token->[1];
1.9 albertel 42: if (!defined($description)) {
1.14 albertel 43: $result.="</td></tr><tr><td></$tag></td><td colspan=\"2\"> </td>";
1.9 albertel 44: } else {
1.14 albertel 45: if ($description ne '') { $result.="</td></tr><tr><td>$description</td><td colspan=\"2\"> </td>"; }
1.9 albertel 46: }
1.12 albertel 47: $result.="</tr>".&end_table()."\n";
1.4 albertel 48: }
49: return $result;
50: }
1.1 albertel 51:
1.10 albertel 52: sub start_table {
53: my ($token)=@_;
54: my $tag = $token->[1];
55: my $tagnum;
56: foreach my $namespace (reverse @Apache::lonxml::namespace) {
57: my $testtag=$Apache::lonxml::namespace['-1'].'::'.$tag;
58: $tagnum=$Apache::lonxml::insertlist{"$testtag.num"};
59: if (defined($tagnum)) { last; }
60: }
61: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
62: my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
63: if (!defined($color)) {
64: $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
65: }
66: $Apache::edit::colordepth++;
1.12 albertel 67: my $result="<table bgcolor=\"$color\" width=\"100%\" border=\"5\">";
1.10 albertel 68: return $result;
69: }
70:
71: sub end_table {
72: $Apache::edit::colordepth--;
73: my $result="</table>";
74: return $result;
75: }
76:
1.8 albertel 77: sub deletelist {
78: my ($target,$token) = @_;
79: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14 albertel 80: <option></option>
81: <option>Yes</option>
1.8 albertel 82: </select>";
83: return $result;
84: }
85:
1.14 albertel 86: sub handle_delete {
87: if (!$ENV{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
88: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
89: my $result=0;
90: if ($space) {
91: my $sub1="$space\:\:delete_$token->[1]";
92: {
93: no strict 'refs';
94: if (defined &$sub1) {
95: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
96: }
97: }
98: }
99: if (!$result) {
100: my $endtag='/'.$token->[1];
101: my $bodytext=&Apache::lonxml::get_all_text($endtag,$$parser[$#$parser]);
102: $$parser['-1']->get_token();
103: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
104: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
105: }
106: return 1;
107: }
108:
1.7 albertel 109: sub get_insert_list {
1.6 albertel 110: my ($token) = @_;
111: my $result='';
1.7 albertel 112: my @tagnums= ();
113: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
1.6 albertel 114: if ($Apache::lonxml::insertlist{"$token->[1].which"}) {
1.7 albertel 115: push (@tagnums, @{ $Apache::lonxml::insertlist{"$token->[1].which"} });
116: }
117: foreach my $namespace (@Apache::lonxml::namespace) {
118: if ($Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"}) {
119: push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"} });
1.6 albertel 120: }
121: }
1.7 albertel 122: if (@tagnums) {
123: foreach my $tagnum (@tagnums) {
124: $result.='<option value="'.$tagnum.'">'.$Apache::lonxml::insertlist{"$tagnum.description"}."</option>\n";
1.5 albertel 125: }
126: if ($result) { $result='<option selected="on"></option>'.$result; }
127: }
128: return $result;
129: }
130:
1.4 albertel 131: sub insertlist {
1.8 albertel 132: my ($target,$token) = @_;
1.4 albertel 133: my $result;
134: if ($target eq 'edit') {
1.5 albertel 135: my $optionlist= &get_insert_list($token);
136: if ($optionlist) {
137: $result = "Insert:
1.4 albertel 138: <select name=\"insert_$Apache::lonxml::curdepth\">
1.5 albertel 139: $optionlist
1.4 albertel 140: </select>"
1.11 albertel 141: } else {
142: $result=" ";
1.6 albertel 143: }
144: }
145: return $result;
146: }
147:
1.7 albertel 148: sub handle_insert {
1.15 albertel 149: if ($ENV{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
1.6 albertel 150: my $result;
151: my $tagnum = $ENV{"form.insert_$Apache::lonxml::curdepth"};
152: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
153: if ($func eq 'default') {
154: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
1.7 albertel 155: my $namespace;
156: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
1.6 albertel 157: $result.="\n<$newtag>\n</$newtag>";
158: } else {
1.15 albertel 159: if (defined(&$func)) {
160: {
161: no strict 'refs';
162: $result.=&$func();
163: }
164: } else {
165: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
166: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined.");
1.5 albertel 167: }
168: }
169: return $result;
1.16 albertel 170: }
171:
172: sub insert_responseparam {
173: return '
174: <responseparam />';
1.5 albertel 175: }
176:
1.15 albertel 177: sub insert_numericalresponse {
178: return '
179: <numericalresponse answer="">
180: <textline />
181: <hintgroup>
182: </hintgroup>
183: </numericalresponse>';
184: }
185:
1.7 albertel 186: sub insert_optionresponse {
187: return '
188: <optionresponse max="10">
189: <foilgroup options="">
190: </foilgroup>
1.14 albertel 191: <hintgroup>
192: </hintgroup>
1.7 albertel 193: </optionresponse>';
1.1 albertel 194: }
195:
1.2 albertel 196: sub editfield {
1.5 albertel 197: my ($tag,$data,$description,$minwidth,$minheight)=@_;
1.2 albertel 198:
199: my $count=0;
200: my $maxlength=-1;
201: map { $count++;
202: if (length($_) > $maxlength) { $maxlength = length ($_); }
203: } split ("\n", $data);
204: if ($maxlength > 80) { $maxlength = 80; }
1.5 albertel 205: if ($maxlength < $minwidth) { $maxlength = $minwidth; }
206: if ( $count < $minheight) { $count = $minheight; }
207: if ($description) {
1.9 albertel 208: $description="<br />".$description."<br />";
1.2 albertel 209: }
1.9 albertel 210: return "$description\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea>\n";
1.2 albertel 211: # return "<br />\n<$tag><br />\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br />\n</$tag><br />\n";
212: }
213:
214: sub modifiedfield {
215: my ($token) = @_;
1.3 albertel 216: my $result;
217: # foreach my $envkey (sort keys %ENV) {
218: # &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
219: # }
220: # &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
221: # &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
222: $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
223: if (defined $token) {
224: if (defined $token->[4]) {
225: $result=$token->[4].$result;
226: } else {
227: $result=$result.$token->[2];
228: }
1.2 albertel 229: }
1.3 albertel 230: return $result;
1.5 albertel 231: }
232:
233: sub insert_startouttext {
1.14 albertel 234: return "<startouttext />\n<endouttext />";
235: }
236:
237: sub insert_script {
238: return "\n<script type=\"loncapa/perl\">\n</script>";
1.2 albertel 239: }
240:
1.15 albertel 241: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 242: # side-effects, will modify the $token if new values are found
243: sub get_new_args {
244: my ($token,$parstack,$safeeval,@args)=@_;
245: my $rebuild=0;
246: foreach my $arg (@args) {
247: my $value=&Apache::lonxml::get_param($arg,$parstack,$safeeval);
248: my $newvalue=$ENV{"form.$Apache::lonxml::curdepth.$arg"};
249: &Apache::lonxml::debug(" for:$arg: cur is :$value: new is :$newvalue:");
250: if ($value ne $newvalue) {
251: $token->[2]->{$arg}=$newvalue;
252: $rebuild=1;
253: }
254: }
255: return $rebuild;
256: }
257:
1.15 albertel 258: # looks for /> on start tags
1.12 albertel 259: sub rebuild_tag {
260: my ($token) = @_;
261: my $result;
262: if ($token->[0] eq 'S') {
263: $result = '<'.$token->[1];
264: while (my ($key,$val)= each(%{$token->[2]})) {
1.17 ! albertel 265: $val=~s:"::g; #"
1.12 albertel 266: &Apache::lonxml::debug("setting :$key: to :$val:");
267: $result.=' '.$key.'="'.$val.'"';
268: }
1.15 albertel 269: if ($token->[4] =~ m:/>$:) {
270: $result.=' />';
271: } else {
272: $result.='>';
273: }
1.12 albertel 274: } elsif ( $token->[0] eq 'E' ) {
275: $result = '</'.$token->[1].'>';
276: }
277: return $result;
278: }
1.13 albertel 279:
280: sub text_arg {
281: my ($description,$name,$token,$size) = @_;
282: my $result;
283: if (!defined $size) { $size=20; }
284: my $arg=$token->[2]{$name};
285: $result=$description.'<input name="'."$Apache::lonxml::curdepth.$name".
286: '" type="text" value="'.$arg.'" size="'.$size.'" />';
287: return $result;
288: }
289:
290: sub select_arg {
291: my ($description,$name,$list,$token) = @_;
292: my $result;
293: my $optionlist="";
294: my $selected=$token->[2]{$name};
295: foreach my $option (@$list) {
296: if ( $selected eq $option ) {
297: $optionlist.="<option selected=\"on\">$option</option>\n";
298: } else {
299: $optionlist.="<option>$option</option>\n";
300: }
301: }
302: $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
303: '.$optionlist.'
304: </select></td></tr><tr><td colspan="3">';
305: return $result;
306: }
307:
1.1 albertel 308: 1;
309: __END__
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