loncom/homework/edit.pm - view

File: [LON-CAPA] / loncom / homework / edit.pm
Revision 1.128: download - view: text, annotated - select for diffs
Sun Aug 8 02:00:50 2010 UTC (13 years, 9 months ago) by raeburn
Branches: MAIN
CVS tags: version_2_10_0_RC1, HEAD

- Replacement of user's environment.wysiwygeditor with link to switch to/from
  CKEditor 3 Richtext editor on textareas where needed.
- Rich text editor link available for Text/HTML block in colorful editor
- Eliminate duplicate Richtext link for textarea entry fields
- "Edit Math" button hidden when richtext editor enabled - use <span> instead
  of <div> for more compact display.
- Help icon for "Edit Math" hidden by switching img src from help.png to
  transparent gif. Additional arg to loncommon::help_open_topic() is
  imgid - id of img tag for icon associated with each "Edit Math" button.

1: # The LearningOnline Network with CAPA 2: # edit mode helpers 3: # 4: # $Id: edit.pm,v 1.128 2010/08/08 02:00:50 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: =pod 30: 31: =head1 NAME 32: 33: Apache::edit - edit mode helpers 34: 35: =head1 SYNOPSIS 36: 37: Invoked by many homework and xml related modules. 38: 39: &Apache::edit::SUBROUTINENAME(ARGUMENTS); 40: 41: =head1 INTRODUCTION 42: 43: This module outputs HTML syntax helpful for the rendering of edit 44: mode interfaces. 45: 46: This is part of the LearningOnline Network with CAPA project 47: described at http://www.lon-capa.org. 48: 49: =head1 SUBROUTINES 50: 51: =over 4 52: 53: =item initialize_edit() 54: 55: initialize edit (set colordepth to zero) 56: 57: =item tag_start($target,$token,$description) 58: 59: provide deletion and insertion lists 60: for the manipulation of a start tag; return a scalar string 61: 62: =item tag_end($target,$token,$description) 63: 64: ending syntax corresponding to 65: &tag_start. return a scalar string. 66: 67: =item start_table($token) 68: 69: start table; update colordepth; return scalar string. 70: 71: =item end_table() 72: 73: reduce color depth; end table; return scalar string 74: 75: =item start_spanning_row() 76: 77: start a new table row spanning the 'edit' environment. 78: 79: =item start_row() 80: 81: start a new table row and element. 82: 83: =item end_row() 84: 85: end current table element and row. 86: 87: =item movebuttons($target,$token) 88: 89: move-up and move-down buttons; return scalar string 90: 91: =item deletelist($target,$token) 92: 93: provide a yes option in an HTML select element; return scalar string 94: 95: =item handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval, 96: $style) 97: 98: respond to a user delete request by passing relevant stack 99: and array information to various rendering functions; return a scalar string 100: 101: =item get_insert_list($token) 102: 103: provide an insertion list based on possibilities from lonxml; return a scalar string 104: 105: =item insertlist($target,$token) 106: 107: api that uses get_insert_list; return a scalar string 108: 109: =item handleinsert($token) 110: 111: provide an insertion list based on possibilities from lonxml; return a scalar string 112: 113: =item get_insert_list($token) 114: 115: provide an insertion list based on possibilities from lonxml; return a scalar string 116: 117: =item browse($elementname) 118: 119: provide a link which will open up the filesystem browser (lonindexer) and, once a file is selected, place the result in the form element $elementname. 120: 121: =item search($elementname) 122: 123: provide a link which will open up the filesystem searcher (lonsearchcat) and, once a file is selected, place the result in the form element $elementname. 124: 125: =item editline(tag,data,description,size) 126: 127: Provide a <input type="text" ../> for single-line text entry. This is to be used for text enclosed by tags, not arguements/parameters associated with a tag. 128: 129: =back 130: 131: =cut 132: 133: package Apache::edit; 134: 135: use strict; 136: use Apache::lonnet; 137: use HTML::Entities(); 138: use Apache::lonlocal; 139: use lib '/home/httpd/lib/perl/'; 140: use LONCAPA; 141: 142: 143: # Global Vars 144: # default list of colors to use in editing 145: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f'); 146: # depth of nesting of edit 147: $Apache::edit::colordepth=0; 148: @Apache::edit::inserttag=(); 149: # image-type responses: active background image and curdepth at definition 150: $Apache::edit::bgimgsrc=''; 151: $Apache::edit::bgimgsrccurdepth=''; 152: 153: sub initialize_edit { 154: $Apache::edit::colordepth=0; 155: @Apache::edit::inserttag=(); 156: } 157: 158: sub tag_start { 159: my ($target,$token,$description) = @_; 160: my $result=''; 161: if ($target eq "edit") { 162: my $tag=$token->[1]; 163: if (!$description) { 164: $description=&Apache::lonxml::description($token); 165: if (!$description) { $description="<$tag>"; } 166: } 167: $result.= &start_table($token)."<tr><td>$description</td> 168: <td>".&mt('Delete?').' '. 169: &deletelist($target,$token) 170: ."</td> 171: <td>". 172: &insertlist($target,$token); 173: #<td>". 174: # &movebuttons($target,$token). 175: # "</tr><tr><td colspan=\"3\">\n"; 176: my @help = Apache::lonxml::helpinfo($token); 177: if ($help[0]) { 178: $result .= '</td><td align="right" valign="top">' . 179: Apache::loncommon::help_open_topic(@help); 180: } else { $result .= "</td><td> "; } 181: $result .= &end_row().&start_spanning_row(); 182: } 183: return $result; 184: } 185: 186: sub tag_end { 187: my ($target,$token,$description) = @_; 188: my $result=''; 189: if ($target eq 'edit') { 190: $result.="</td></tr>".&end_table()."\n"; 191: } 192: return $result; 193: } 194: 195: sub start_table { 196: my ($token)=@_; 197: my $tag = &Apache::lonxml::get_tag($token); 198: 199: my $color = $Apache::lonxml::insertlist{"$tag.color"}; 200: &Apache::lonxml::debug(" $tag -- $color"); 201: if (!defined($color)) { 202: $color = $Apache::edit::colorlist[$Apache::edit::colordepth]; 203: } 204: $Apache::edit::colordepth++; 205: push(@Apache::edit::inserttag,$token->[1]); 206: my $result='<div align="right">'; 207: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="3" cellpadding="2">'; 208: return $result; 209: } 210: 211: sub end_table { 212: $Apache::edit::colordepth--; 213: my $result='</table></div>'; 214: $result.='<div align="left"><table><tr><td>'; 215: 216: my ($tagname,$closingtag); 217: if (defined($Apache::edit::inserttag[-2])) { 218: $tagname=$Apache::edit::inserttag[-2]; 219: } else { 220: if ($Apache::lonhomework::parsing_a_task) { 221: $tagname='Task'; 222: } else { 223: $tagname='problem'; 224: } 225: } 226: if (defined($Apache::edit::inserttag[-1])) { 227: $closingtag=$Apache::edit::inserttag[-1]; 228: } 229: $result.=&innerinsertlist('edit',$tagname,$closingtag). 230: "</td></tr></table></div>"; 231: my $last = pop(@Apache::edit::inserttag); 232: return $result; 233: } 234: 235: sub start_spanning_row { return '<tr><td colspan="5" bgcolor="#F0F0F0">';} 236: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; } 237: sub end_row { return '</td></tr>'; } 238: 239: sub movebuttons { 240: my ($target,$token) = @_; 241: my $result='<input type="submit" name="moveup.'. 242: $Apache::lonxml::curdepth.'" value="Move Up" />'; 243: $result.='<input type="submit" name="movedown.'. 244: $Apache::lonxml::curdepth.'" value="Move Down" />'; 245: return $result; 246: } 247: 248: sub deletelist { 249: my ($target,$token) = @_; 250: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\"> 251: <option></option> 252: <option>".&mt('yes')."</option> 253: </select>"; 254: return $result; 255: } 256: 257: sub handle_delete { 258: if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; } 259: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; 260: my $result=0; 261: if ($space) { 262: my $sub1="$space\:\:delete_$token->[1]"; 263: { 264: no strict 'refs'; 265: if (defined &$sub1) { 266: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style); 267: } 268: } 269: } 270: if (!$result) { 271: my $endtag='/'.$token->[1]; 272: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style); 273: $$parser['-1']->get_token(); 274: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]"); 275: &Apache::lonxml::end_tag($tagstack,$parstack,$token); 276: } 277: return 1; 278: } 279: 280: sub get_insert_list { 281: my ($tagname) = @_; 282: my $result=''; 283: my @tags= (); 284: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist)))); 285: if ($Apache::lonxml::insertlist{"$tagname.which"}) { 286: push (@tags, @{ $Apache::lonxml::insertlist{"$tagname.which"} }); 287: } 288: foreach my $namespace (@Apache::lonxml::namespace) { 289: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) { 290: push (@tags, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} }); 291: } 292: } 293: if (@tags) { 294: my %options; 295: foreach my $tag (@tags) { 296: my $descrip=$Apache::lonxml::insertlist{"$tag.description"}; 297: my $tagnum =$Apache::lonxml::insertlist{"$tag.num"}; 298: $options{$descrip} ="<option value=\"$tagnum\">". 299: $descrip."</option>\n"; 300: } 301: foreach my $option (sort(keys(%options))) {$result.=$options{$option};} 302: if ($result) { $result='<option selected="selected"></option>'.$result; } 303: } 304: return $result; 305: } 306: 307: sub insertlist { 308: my ($target,$token) = @_; 309: return &innerinsertlist($target,$token->[1]); 310: } 311: 312: sub innerinsertlist { 313: my ($target,$tagname,$closingtag) = @_; 314: my $result; 315: my $after=''; 316: if ($closingtag) { 317: $after='_after_'.$closingtag; 318: } 319: if ($target eq 'edit') { 320: my $optionlist= &get_insert_list($tagname); 321: if ($optionlist) { 322: $result = &mt('Insert:')." 323: <select name=\"insert$after\_$Apache::lonxml::curdepth\"> 324: $optionlist 325: </select>" 326: } else { 327: $result=" "; 328: } 329: } 330: return $result; 331: } 332: 333: sub handle_insert { 334: if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; } 335: my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"}; 336: return &do_insert($tagnum); 337: } 338: 339: sub handle_insertafter { 340: my $tagname=shift; 341: if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '') { 342: return ''; 343: } 344: my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"}; 345: return &do_insert($tagnum,1); 346: } 347: 348: sub do_insert { 349: my ($tagnum,$after) = @_; 350: my $result; 351: 352: my $newtag = $Apache::lonxml::insertlist{"$tagnum.tag"}; 353: my $func = $Apache::lonxml::insertlist{"$newtag.function"}; 354: if ($func eq 'default') { 355: my $namespace; 356: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); } 357: my $depth = scalar(@Apache::lonxml::depthcounter); 358: $depth -- if ($after); 359: my $inset = "\t"x$depth; 360: $result.="\n$inset<$newtag></$newtag>"; 361: } else { 362: if (defined(&$func)) { 363: { 364: no strict 'refs'; 365: $result.=&$func(); 366: } 367: } else { 368: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined. ($tagnum)"); 369: } 370: } 371: return $result; 372: } 373: 374: sub insert_img { 375: return ' 376: <img />'; 377: } 378: 379: sub insert_responseparam { 380: return ' 381: <responseparam />'; 382: } 383: 384: sub insert_parameter { 385: return ' 386: <parameter />'; 387: } 388: 389: sub insert_formularesponse { 390: return ' 391: <formularesponse answer="" samples=""> 392: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" /> 393: <textline size="25"/> 394: <hintgroup> 395: <startouttext /><endouttext /> 396: </hintgroup> 397: </formularesponse>'; 398: } 399: 400: sub insert_numericalresponse { 401: return ' 402: <numericalresponse answer=""> 403: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" /> 404: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" /> 405: <textline /> 406: <hintgroup> 407: <startouttext /><endouttext /> 408: </hintgroup> 409: </numericalresponse>'; 410: } 411: 412: sub insert_customresponse { 413: return ' 414: <customresponse> 415: <answer type="loncapa/perl"> 416: </answer> 417: <textline /> 418: <hintgroup> 419: <startouttext /><endouttext /> 420: </hintgroup> 421: </customresponse>'; 422: } 423: 424: sub insert_customresponse_answer { 425: return ' 426: <answer type="loncapa/perl"> 427: </answer> 428: '; 429: } 430: 431: sub insert_customhint { 432: return ' 433: <customhint> 434: <answer type="loncapa/perl"> 435: </answer> 436: </customhint>'; 437: } 438: 439: sub insert_customhint_answer { 440: return ' 441: <answer type="loncapa/perl"> 442: </answer> 443: '; 444: } 445: 446: sub insert_mathresponse { 447: return ' 448: <mathresponse> 449: <answer> 450: </answer> 451: <textline /> 452: <hintgroup> 453: <startouttext /> 454: <endouttext /> 455: </hintgroup> 456: </mathresponse>'; 457: } 458: 459: sub insert_mathresponse_answer { 460: return ' 461: <answer> 462: </answer> 463: '; 464: } 465: 466: sub insert_mathhint { 467: return ' 468: <mathhint> 469: <answer> 470: </answer> 471: </mathhint>'; 472: } 473: 474: sub insert_mathhint_answer { 475: return ' 476: <answer> 477: </answer> 478: '; 479: } 480: 481: sub insert_stringresponse { 482: return ' 483: <stringresponse answer="" type=""> 484: <textline /> 485: <hintgroup> 486: <startouttext /><endouttext /> 487: </hintgroup> 488: </stringresponse>'; 489: } 490: 491: sub insert_essayresponse { 492: return ' 493: <essayresponse> 494: <textfield></textfield> 495: </essayresponse>'; 496: } 497: 498: sub insert_imageresponse { 499: return ' 500: <imageresponse max="1"> 501: <foilgroup> 502: <foil> 503: </foil> 504: </foilgroup> 505: <hintgroup> 506: <startouttext /><endouttext /> 507: </hintgroup> 508: </imageresponse>'; 509: } 510: 511: sub insert_optionresponse { 512: return ' 513: <optionresponse max="10"> 514: <foilgroup options=""> 515: <foil> 516: <startouttext /><endouttext /> 517: </foil> 518: </foilgroup> 519: <hintgroup> 520: <startouttext /><endouttext /> 521: </hintgroup> 522: </optionresponse>'; 523: } 524: 525: sub insert_organicresponse { 526: return ' 527: <organicresponse> 528: <textline /> 529: <hintgroup> 530: <startouttext /><endouttext /> 531: </hintgroup> 532: </organicresponse>'; 533: } 534: 535: sub insert_organicstructure { 536: return ' 537: <organicstructure /> 538: '; 539: } 540: 541: sub insert_radiobuttonresponse { 542: return ' 543: <radiobuttonresponse max="10"> 544: <foilgroup> 545: <foil> 546: <startouttext /><endouttext /> 547: </foil> 548: </foilgroup> 549: <hintgroup> 550: <startouttext /><endouttext /> 551: </hintgroup> 552: </radiobuttonresponse>'; 553: } 554: 555: sub insert_reactionresponse { 556: return ' 557: <reactionresponse> 558: <textline /> 559: <hintgroup> 560: <startouttext /><endouttext /> 561: </hintgroup> 562: </reactionresponse>'; 563: } 564: 565: sub insert_rankresponse { 566: return ' 567: <rankresponse max="10"> 568: <foilgroup options=""> 569: <foil> 570: <startouttext /><endouttext /> 571: </foil> 572: </foilgroup> 573: <hintgroup> 574: <startouttext /><endouttext /> 575: </hintgroup> 576: </rankresponse>'; 577: } 578: 579: sub insert_matchresponse { 580: return ' 581: <matchresponse max="10"> 582: <foilgroup options=""> 583: <itemgroup> 584: </itemgroup> 585: <foil> 586: <startouttext /><endouttext /> 587: </foil> 588: </foilgroup> 589: <hintgroup> 590: <startouttext /><endouttext /> 591: </hintgroup> 592: </matchresponse>'; 593: } 594: 595: sub insert_startpartmarker { return '<startpartmarker />'; } 596: sub insert_endpartmarker { return '<endpartmarker />'; } 597: 598: sub insert_displayduedate { return '<displayduedate />'; } 599: sub insert_displaytitle { return '<displaytitle />'; } 600: sub insert_hintpart { 601: return ' 602: <hintpart on="default"> 603: <startouttext/><endouttext /> 604: </hintpart>'; 605: } 606: 607: sub insert_hintgroup { 608: return ' 609: <hintgroup> 610: <startouttext /><endouttext /> 611: </hintgroup>'; 612: } 613: 614: sub insert_numericalhint { 615: return ' 616: <numericalhint> 617: </numericalhint>'; 618: } 619: 620: sub insert_reactionhint { 621: return ' 622: <reactionhint> 623: </reactionhint>'; 624: } 625: 626: sub insert_organichint { 627: return ' 628: <organichint> 629: </organichint>'; 630: } 631: 632: sub insert_stringhint { 633: return ' 634: <stringhint> 635: </stringhint>'; 636: } 637: 638: sub insert_formulahint { 639: return ' 640: <formulahint> 641: </formulahint>'; 642: } 643: 644: sub insert_radiobuttonhint { 645: return ' 646: <radiobuttonhint> 647: </radiobuttonhint>'; 648: } 649: 650: sub insert_optionhint { 651: return ' 652: <optionhint> 653: </optionhint>'; 654: } 655: 656: sub insert_startouttext { 657: return "<startouttext /><endouttext />"; 658: } 659: 660: sub insert_script { 661: return "\n<script type=\"loncapa/perl\"></script>"; 662: } 663: 664: sub js_change_detection { 665: my $unsaved=&mt("There are unsaved changes"); 666: return (<<SCRIPT); 667: <script type="text/javascript"> 668: var clean = true; 669: var is_submit = false; 670: var still_ask = false; 671: function compareForm(event_) { 672: if (!event_ && window.event) { 673: event_ = window.event; 674: } 675: if ((!is_submit || (is_submit && still_ask)) && !clean) { 676: still_ask = false; 677: is_submit = false; 678: event_.returnValue = "$unsaved"; 679: return "$unsaved"; 680: } 681: } 682: function unClean() { 683: clean=false; 684: } 685: window.onbeforeunload = compareForm; 686: </script> 687: SCRIPT 688: } 689: 690: sub form_change_detection { 691: return ' onsubmit="is_submit=true;" '; 692: } 693: 694: sub element_change_detection { 695: return ' onchange="unClean();" '; 696: } 697: 698: sub submit_ask_anyway { 699: my ($extra_action) = @_; 700: return ' onclick="still_ask=true;'.$extra_action.'" '; 701: } 702: 703: sub textarea_sizes { 704: my ($data)=@_; 705: my $count=0; 706: my $maxlength=-1; 707: foreach (split ("\n", $$data)) { 708: $count+=int(length($_)/79); 709: $count++; 710: if (length($_) > $maxlength) { $maxlength = length($_); } 711: } 712: my $rows = $count; 713: my $cols = $maxlength; 714: return ($rows,$cols); 715: } 716: 717: sub editline { 718: my ($tag,$data,$description,$size)=@_; 719: $data=&HTML::Entities::encode($data,'<>&"'); 720: if ($description) { $description=$description."<br />"; } 721: my $change_code = &element_change_detection(); 722: my $result = <<"END"; 723: $description 724: <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 725: value="$data" size="$size" $change_code /> 726: END 727: return $result; 728: } 729: 730: sub editfield { 731: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_; 732: 733: my ($rows,$cols)=&textarea_sizes(\$data); 734: my $textareaclass; 735: 736: if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) { 737: $rows+=7; # make room for HTMLarea 738: $minheight+=7; # make room for HTMLarea 739: $textareaclass = ' class="LC_richDefaultOff"'; 740: } 741: if ($cols > 80) { $cols = 80; } 742: if ($cols < $minwidth ) { $cols = $minwidth; } 743: if ($rows < $minheight) { $rows = $minheight; } 744: if ($description) { $description=$description."<br />"; } 745: 746: # remove typesetting whitespace from between data and the end tag 747: # to make the edit look prettier 748: $data =~ s/\n?[ \t]*$//; 749: 750: return $description."\n".'<textarea style="width:100%" rows="'.$rows. 751: '" cols="'.$cols.'" name="homework_edit_'. 752: $Apache::lonxml::curdepth.'" id="homework_edit_'. 753: $Apache::lonxml::curdepth.'" '.&element_change_detection(). 754: $textareaclass.'>'. 755: &HTML::Entities::encode($data,'<>&"').'</textarea>'. 756: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework', 757: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n"; 758: } 759: 760: sub modifiedfield { 761: my ($endtag,$parser) = @_; 762: my $result; 763: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"}; 764: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser); 765: # textareas throw away intial \n 766: if ($bodytext=~/^\n/) { 767: $result="\n".$result; 768: } 769: # if there is typesetting whitespace from between the data and the end tag 770: # restore to keep the source looking pretty 771: if ($bodytext =~ /(\n?[ \t]*)$/) { 772: $result .= $1; 773: } 774: return $result; 775: } 776: 777: # Returns a 1 if the token has been modified and you should rebuild the tag 778: # side-effects, will modify the $token if new values are found 779: sub get_new_args { 780: my ($token,$parstack,$safeeval,@args)=@_; 781: my $rebuild=0; 782: foreach my $arg (@args) { 783: #just want the string that it was set to 784: my $value=$token->[2]->{$arg}; 785: my $element=&html_element_name($arg); 786: my $newvalue=$env{"form.$element"}; 787: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:"); 788: if (defined($newvalue) && $value ne $newvalue) { 789: if (ref($newvalue) eq 'ARRAY') { 790: $token->[2]->{$arg}=join(',',@$newvalue); 791: } else { 792: $token->[2]->{$arg}=$newvalue; 793: } 794: $rebuild=1; 795: # add new attributes to the of the attribute seq 796: if (!grep { $arg eq $_ } (@{ $token->[3] })) { 797: push(@{ $token->[3] },$arg); 798: } 799: } elsif (!defined($newvalue) && defined($value)) { 800: delete($token->[2]->{$arg}); 801: $rebuild=1; 802: } 803: } 804: return $rebuild; 805: } 806: 807: # looks for /> on start tags 808: sub rebuild_tag { 809: my ($token) = @_; 810: my $result; 811: if ($token->[0] eq 'S') { 812: $result = '<'.$token->[1]; 813: foreach my $attribute (@{ $token->[3] }) { 814: my $value = $token->[2]{$attribute}; 815: next if ($value eq ''); 816: $value =~s/^\s+|\s+$//g; 817: $value =~s/\"//g; 818: &Apache::lonxml::debug("setting :$attribute: to :$value:"); 819: $result.=' '.$attribute.'="'.$value.'"'; 820: } 821: if ($token->[4] =~ m:/>$:) { 822: $result.=' />'; 823: } else { 824: $result.='>'; 825: } 826: } elsif ( $token->[0] eq 'E' ) { 827: $result = '</'.$token->[1].'>'; 828: } 829: return $result; 830: } 831: 832: sub html_element_name { 833: my ($name) = @_; 834: return $name.'_'.$Apache::lonxml::curdepth; 835: } 836: 837: sub hidden_arg { 838: my ($name,$token) = @_; 839: my $result; 840: my $arg=$token->[2]{$name}; 841: $result='<input name="'.&html_element_name($name). 842: '" type="hidden" value="'.$arg.'" />'; 843: return $result; 844: } 845: 846: sub checked_arg { 847: my ($description,$name,$list,$token) = @_; 848: my $result; 849: my $optionlist=""; 850: my $allselected=$token->[2]{$name}; 851: $result=&mt($description); 852: foreach my $option (@$list) { 853: my ($value,$text); 854: if ( ref($option) eq 'ARRAY') { 855: $value='value="'.$$option[0].'"'; 856: $text=$$option[1]; 857: $option=$$option[0]; 858: } else { 859: $text=$option; 860: $value='value="'.$option.'"'; 861: } 862: $result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'. 863: &html_element_name($name).'"'; 864: foreach my $selected (split(/,/,$allselected)) { 865: if ( $selected eq $option ) { 866: $result.=' checked="checked" '; 867: last; 868: } 869: } 870: $result.=&element_change_detection().' />'.$text.'</label></span>'."\n"; 871: } 872: return $result; 873: } 874: 875: sub text_arg { 876: my ($description,$name,$token,$size) = @_; 877: my $result; 878: if (!defined $size) { $size=20; } 879: my $arg=$token->[2]{$name}; 880: $result=&mt($description).' <input name="'.&html_element_name($name). 881: '" type="text" value="'.$arg.'" size="'.$size.'" '. 882: &element_change_detection().'/>'; 883: return '<span class="LC_nobreak">'.$result.'</span>'; 884: } 885: 886: sub select_arg { 887: my ($description,$name,$list,$token) = @_; 888: my $result; 889: my $optionlist=""; 890: my $selected=$token->[2]{$name}; 891: if (ref($list) eq 'ARRAY') { 892: foreach my $option (@{$list}) { 893: my ($text,$value); 894: if (ref($option) eq 'ARRAY') { 895: $value='value="'.&HTML::Entities::encode($option->[0]).'"'; 896: $text=$option->[1]; 897: $option=$option->[0]; 898: } else { 899: $text=$option; 900: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"'; 901: } 902: if ( $selected eq $option ) { 903: $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n"; 904: } else { 905: $optionlist.="<option $value >".&mt($text)."</option>\n"; 906: } 907: } 908: } 909: $result.='<span class="LC_nobreak">'.&mt($description).' <select name="'. 910: &html_element_name($name).'" '.&element_change_detection().' > 911: '.$optionlist.' 912: </select></span>'; 913: return $result; 914: } 915: 916: sub select_or_text_arg { 917: my ($description,$name,$list,$token,$size) = @_; 918: my $result; 919: my $optionlist=""; 920: my $found=0; 921: my $selected=$token->[2]{$name}; 922: if (ref($list) eq 'ARRAY') { 923: foreach my $option (@{$list}) { 924: my ($text,$value); 925: if (ref($option) eq 'ARRAY') { 926: $value='value="'.&HTML::Entities::encode($option->[0]).'"'; 927: $text=$option->[1]; 928: $option=$option->[0]; 929: } else { 930: $text=$option; 931: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"'; 932: } 933: if ( $selected eq $option ) { 934: $optionlist.="<option $value selected=\"selected\">$text</option>\n"; 935: $found=1; 936: } else { 937: $optionlist.="<option $value>$text</option>\n"; 938: } 939: } 940: } 941: $optionlist.="<option value=\"TYPEDINVALUE\"". 942: ((!$found)?' selected="selected"':''). 943: ">".&mt('Type-in value')."</option>\n"; 944: # 945: my $change_code=&element_change_detection(); 946: my $element=&html_element_name($name); 947: my $selectelement='select_list_'.$element; 948: my $typeinelement='type_in_'.$element; 949: my $typeinvalue=($found?'':$selected); 950: # 951: my $hiddenvalue='this.form.'.$element.'.value'; 952: my $selectedindex='this.form.'.$selectelement.'.selectedIndex'; 953: my $selectedvalue='this.form.'.$selectelement. 954: '.options['.$selectedindex.'].value'; 955: my $typedinvalue='this.form.'.$typeinelement.'.value'; 956: my $selecttypeinindex='this.form.'.$selectelement.'.options.length'; 957: $description=&mt($description); 958: # 959: return (<<ENDSELECTORTYPE); 960: <span class="LC_nobreak"> 961: $description 962:  <select name="$selectelement" 963: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" > 964: $optionlist 965: </select> 966: <input type="text" size="$size" name="$typeinelement" 967: value="$typeinvalue" 968: onChange="$hiddenvalue=$typedinvalue;" 969: onFocus="$selectedindex=$selecttypeinindex-1;" /> 970: <input type="hidden" name="$element" value="$selected" $change_code /> 971: </span> 972: ENDSELECTORTYPE 973: } 974: 975: #----------------------------------------------------- image coordinates 976: # single image coordinates, x, y 977: sub entercoords { 978: my ($idx,$idy,$mode,$width,$height) = @_; 979: unless ($Apache::edit::bgimgsrc) { return ''; } 980: if ($idx) { $idx.='_'; } 981: if ($idy) { $idy.='_'; } 982: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc)); 983: my $form = 'lonhomework'; 984: my $element; 985: if (! defined($mode) || $mode eq 'attribute') { 986: $element = &escape("$Apache::lonxml::curdepth"); 987: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 988: $element = &escape('homework_edit_'. 989: $Apache::lonxml::curdepth); 990: } 991: my $id=$Apache::lonxml::curdepth; 992: my %data=("imagechoice.$id.type" =>'point', 993: "imagechoice.$id.formname" =>$form, 994: "imagechoice.$id.formx" =>"$idx$element", 995: "imagechoice.$id.formy" =>"$idy$element", 996: "imagechoice.$id.file" =>$bgfile, 997: "imagechoice.$id.formcoord" =>$element); 998: if ($height) { 999: $data{"imagechoice.$id.formheight"}=$height.'_'. 1000: $Apache::edit::bgimgsrccurdepth; 1001: } 1002: if ($width) { 1003: $data{"imagechoice.$id.formwidth"}=$width.'_'. 1004: $Apache::edit::bgimgsrccurdepth; 1005: } 1006: &Apache::lonnet::appenv(\%data); 1007: my $text="Click Coordinates"; 1008: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>'; 1009: return $result; 1010: } 1011: 1012: # coordinates (x1,y1)-(x2,y2)... 1013: # mode can be either box, or polygon 1014: sub entercoord { 1015: my ($idx,$mode,$width,$height,$type) = @_; 1016: unless ($Apache::edit::bgimgsrc) { return ''; } 1017: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc)); 1018: my $form = 'lonhomework'; 1019: my $element; 1020: if (! defined($mode) || $mode eq 'attribute') { 1021: $element = &escape("$idx\_$Apache::lonxml::curdepth"); 1022: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 1023: $element = &escape('homework_edit_'. 1024: $Apache::lonxml::curdepth); 1025: } 1026: my $id=$Apache::lonxml::curdepth; 1027: my %data=("imagechoice.$id.type" =>$type, 1028: "imagechoice.$id.formname" =>$form, 1029: "imagechoice.$id.file" =>$bgfile, 1030: "imagechoice.$id.formcoord" =>$element); 1031: if ($height) { 1032: $data{"imagechoice.$id.formheight"}=$height.'_'. 1033: $Apache::edit::bgimgsrccurdepth; 1034: } 1035: if ($width) { 1036: $data{"imagechoice.$id.formwidth"}=$width.'_'. 1037: $Apache::edit::bgimgsrccurdepth; 1038: } 1039: &Apache::lonnet::appenv(\%data); 1040: my $text="Enter Coordinates"; 1041: if ($type eq 'polygon') { $text='Create Polygon Data'; } 1042: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>'; 1043: return $result; 1044: } 1045: 1046: sub deletecoorddata { 1047: &Apache::lonnet::delenv('imagechoice.'); 1048: } 1049: 1050: #----------------------------------------------------- browse 1051: sub browse { 1052: # insert a link to call up the filesystem browser (lonindexer) 1053: my ($id, $mode, $titleid, $only) = @_; 1054: my $form = 'lonhomework'; 1055: my $element; 1056: if (! defined($mode) || $mode eq 'attribute') { 1057: $element = &escape("$id\_$Apache::lonxml::curdepth"); 1058: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 1059: $element = &escape('homework_edit_'. 1060: $Apache::lonxml::curdepth); 1061: } 1062: my $titleelement; 1063: if ($titleid) { 1064: $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'"; 1065: } else { 1066: $titleelement=",'$only'"; 1067: } 1068: my $result = <<"ENDBUTTON"; 1069: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a> 1070: ENDBUTTON 1071: return $result; 1072: } 1073: 1074: #----------------------------------------------------- browse 1075: sub search { 1076: # insert a link to call up the filesystem browser (lonindexer) 1077: my ($id, $mode, $titleid) = @_; 1078: my $form = 'lonhomework'; 1079: my $element; 1080: if (! defined($mode) || $mode eq 'attribute') { 1081: $element = &escape("$id\_$Apache::lonxml::curdepth"); 1082: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 1083: $element = &escape('homework_edit_'. 1084: $Apache::lonxml::curdepth); 1085: } 1086: my $titleelement; 1087: if ($titleid) { 1088: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'"; 1089: } 1090: my $result = <<"ENDBUTTON"; 1091: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a> 1092: ENDBUTTON 1093: return $result; 1094: } 1095: 1096: 1097: 1; 1098: __END__ 1099: 1100: