loncom/homework/edit.pm - view

File: [LON-CAPA] / loncom / homework / edit.pm
Revision 1.157: download - view: text, annotated - select for diffs
Mon Mar 27 18:41:06 2023 UTC (13 months ago) by raeburn
Branches: MAIN
CVS tags: version_2_12_X, HEAD

- "In course" authoring.
  Improved handling of case where no suitable resources authored in course
  exist when (a) using "Import from Course Resources" in Course Editor, and
  (b) using Choose File >  "Use a course file" to select published file as src
  in img tag in colorful editor.

1: # The LearningOnline Network with CAPA 2: # edit mode helpers 3: # 4: # $Id: edit.pm,v 1.157 2023/03/27 18:41:06 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 Apache::loncommon; 138: use HTML::Entities(); 139: use Apache::lonlocal; 140: use lib '/home/httpd/lib/perl/'; 141: use LONCAPA qw(:DEFAULT :match); 142: 143: 144: # Global Vars 145: # default list of colors to use in editing 146: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f'); 147: # depth of nesting of edit 148: $Apache::edit::colordepth=0; 149: @Apache::edit::inserttag=(); 150: # image-type responses: active background image and curdepth at definition 151: $Apache::edit::bgimgsrc=''; 152: $Apache::edit::bgimgsrccurdepth=''; 153: 154: sub initialize_edit { 155: $Apache::edit::colordepth=0; 156: @Apache::edit::inserttag=(); 157: } 158: 159: sub tag_start { 160: my ($target,$token,$description) = @_; 161: my $result=''; 162: if ($target eq "edit") { 163: my $tag=$token->[1]; 164: if (!$description) { 165: $description=&mt(&Apache::lonxml::description($token)); 166: if (!$description) { $description="<$tag>"; } 167: } 168: $result.= &start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button(). 169: " $description</td><td>".&mt('Delete?')." ".&deletelist($target,$token). 170: "</td><td>".&insertlist($target,$token); 171: #<td>". 172: # &movebuttons($target,$token). 173: # "</tr><tr><td colspan=\"3\">\n"; 174: my @help = Apache::lonxml::helpinfo($token); 175: if ($help[0]) { 176: $result .= '</td><td class="LC_edit_problem_latexhelper">'. 177: Apache::loncommon::help_open_topic(@help); 178: } else { $result .= "</td><td> "; } 179: $result .= &end_row().&start_spanning_row(); 180: } 181: return $result; 182: } 183: 184: sub tag_end { 185: my ($target,$token,$description) = @_; 186: my $result=''; 187: if ($target eq 'edit') { 188: $result.="</td></tr>".&end_table()."\n"; 189: } 190: return $result; 191: } 192: 193: sub start_table { 194: my ($token)=@_; 195: my $tag = &Apache::lonxml::get_tag($token); 196: 197: my $color = $Apache::lonxml::insertlist{"$tag.color"}; 198: &Apache::lonxml::debug(" $tag -- $color"); 199: if (!defined($color)) { 200: $color = $Apache::edit::colorlist[$Apache::edit::colordepth]; 201: } 202: $Apache::edit::colordepth++; 203: push(@Apache::edit::inserttag,$token->[1]); 204: my $result='<div>'; 205: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="3" cellpadding="2">'; 206: return $result; 207: } 208: 209: sub end_table { 210: $Apache::edit::colordepth--; 211: my $result='</table></div>'; 212: $result.='<div><table><tr><td>'; 213: 214: my ($tagname,$closingtag); 215: if (defined($Apache::edit::inserttag[-2])) { 216: $tagname=$Apache::edit::inserttag[-2]; 217: } else { 218: if ($Apache::lonhomework::parsing_a_task) { 219: $tagname='Task'; 220: } else { 221: $tagname='problem'; 222: } 223: } 224: if (defined($Apache::edit::inserttag[-1])) { 225: $closingtag=$Apache::edit::inserttag[-1]; 226: } 227: $result.=&innerinsertlist('edit',$tagname,$closingtag). 228: "</td></tr></table></div>"; 229: my $last = pop(@Apache::edit::inserttag); 230: return $result; 231: } 232: 233: sub start_spanning_row { 234: return '<tr name="foldblock_'.$Apache::lonxml::curdepth. 235: '" style="visibility: \'\'"><td colspan="5" bgcolor="#F0F0F0">'; 236: } 237: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; } 238: sub end_row { return '</td></tr>'; } 239: 240: sub movebuttons { 241: my ($target,$token) = @_; 242: my $result='<input type="submit" name="moveup.'. 243: $Apache::lonxml::curdepth.'" value="Move Up" />'; 244: $result.='<input type="submit" name="movedown.'. 245: $Apache::lonxml::curdepth.'" value="Move Down" />'; 246: return $result; 247: } 248: 249: sub deletelist { 250: my ($target,$token) = @_; 251: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\"> 252: <option></option> 253: <option>".&mt('yes')."</option> 254: </select>"; 255: return $result; 256: } 257: 258: sub handle_delete { 259: if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; } 260: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; 261: my $result=0; 262: if ($space) { 263: my $sub1="$space\:\:delete_$token->[1]"; 264: { 265: no strict 'refs'; 266: if (defined &$sub1) { 267: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style); 268: } 269: } 270: } 271: if (!$result) { 272: my $endtag='/'.$token->[1]; 273: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style); 274: $$parser['-1']->get_token(); 275: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]"); 276: &Apache::lonxml::end_tag($tagstack,$parstack,$token); 277: } 278: return 1; 279: } 280: 281: sub get_insert_list { 282: my ($tagname) = @_; 283: my $result=''; 284: my @tags= (); 285: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist)))); 286: if ($Apache::lonxml::insertlist{"$tagname.which"}) { 287: push (@tags, @{ $Apache::lonxml::insertlist{"$tagname.which"} }); 288: } 289: foreach my $namespace (@Apache::lonxml::namespace) { 290: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) { 291: push (@tags, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} }); 292: } 293: } 294: if (@tags) { 295: my %options; 296: foreach my $tag (@tags) { 297: my $descrip=$Apache::lonxml::insertlist{"$tag.description"}; 298: my $tagnum =$Apache::lonxml::insertlist{"$tag.num"}; 299: $options{$descrip} ="<option value=\"$tagnum\">". 300: &mt($descrip)."</option>\n"; 301: } 302: foreach my $option (sort(keys(%options))) {$result.=$options{$option};} 303: if ($result) { $result='<option selected="selected"></option>'.$result; } 304: } 305: return $result; 306: } 307: 308: sub insertlist { 309: my ($target,$token) = @_; 310: return &innerinsertlist($target,$token->[1]); 311: } 312: 313: sub innerinsertlist { 314: my ($target,$tagname,$closingtag) = @_; 315: my $result; 316: my $after=''; 317: if ($closingtag) { 318: $after='_after_'.$closingtag; 319: } 320: if ($target eq 'edit') { 321: my $optionlist= &get_insert_list($tagname); 322: if ($optionlist) { 323: $result = &mt('Insert:')." 324: <select name=\"insert$after\_$Apache::lonxml::curdepth\"> 325: $optionlist 326: </select>" 327: } else { 328: $result=" "; 329: } 330: } 331: return $result; 332: } 333: 334: sub handle_insert { 335: if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; } 336: my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"}; 337: return &do_insert($tagnum); 338: } 339: 340: sub handle_insertafter { 341: my $tagname=shift; 342: if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '') { 343: return ''; 344: } 345: my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"}; 346: return &do_insert($tagnum,1); 347: } 348: 349: sub do_insert { 350: my ($tagnum,$after) = @_; 351: my $result; 352: 353: my $newtag = $Apache::lonxml::insertlist{"$tagnum.tag"}; 354: my $func = $Apache::lonxml::insertlist{"$newtag.function"}; 355: if ($func eq 'default') { 356: my $namespace; 357: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); } 358: my $depth = scalar(@Apache::lonxml::depthcounter); 359: $depth -- if ($after); 360: my $inset = "\t"x$depth; 361: $result.="\n$inset<$newtag></$newtag>"; 362: } else { 363: if (defined(&$func)) { 364: { 365: no strict 'refs'; 366: $result.=&$func(); 367: } 368: } else { 369: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined. ($tagnum)"); 370: } 371: } 372: return $result; 373: } 374: 375: sub insert_img { 376: return ' 377: <img />'; 378: } 379: 380: sub insert_responseparam { 381: return ' 382: <responseparam />'; 383: } 384: 385: sub insert_parameter { 386: return ' 387: <parameter />'; 388: } 389: 390: sub insert_formularesponse { 391: return ' 392: <formularesponse answer="" samples=""> 393: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" /> 394: <textline size="25"/> 395: <hintgroup> 396: <startouttext /><endouttext /> 397: </hintgroup> 398: </formularesponse>'; 399: } 400: 401: sub insert_functionplotresponse { 402: return ' 403: <functionplotresponse> 404: <functionplotelements> 405: </functionplotelements> 406: <functionplotruleset> 407: </functionplotruleset> 408: </functionplotresponse>'; 409: } 410: 411: sub insert_spline { 412: return ' 413: <spline />'; 414: } 415: 416: sub insert_backgroundplot { 417: return ' 418: <backgroundplot />'; 419: } 420: 421: sub insert_plotobject { 422: return ' 423: <plotobject />'; 424: } 425: 426: sub insert_plotvector { 427: return ' 428: <plotvector />'; 429: } 430: 431: sub insert_drawvectorsum { 432: return ' 433: <drawvectorsum />'; 434: } 435: 436: 437: sub insert_functionplotrule { 438: return ' 439: <functionplotrule />'; 440: } 441: 442: sub insert_functionplotvectorrule { 443: return ' 444: <functionplotvectorrule />'; 445: } 446: 447: sub insert_functionplotvectorsumrule { 448: return ' 449: <functionplotvectorsumrule />'; 450: } 451: 452: sub insert_functionplotcustomrule { 453: return ' 454: <functionplotcustomrule> 455: <answer type="loncapa/perl"> 456: # &fpr_val("label"), &fpr_f($x), &fpr_dfdx($x), &fpr_d2fdx2($x) 457: # ($xs,$xe,$ys,$ye)=&fpr_vectorcoords("Name"), ($x,$y)=&fpr_objectcoords("Name") 458: # &fpr_vectorlength("Name"), &fpr_vectorangle("Name") 459: 460: # Return 0 or 1 461: return 1; 462: </answer> 463: </functionplotcustomrule>'; 464: } 465: 466: sub insert_functionplotruleset { 467: return ' 468: <functionplotruleset> 469: <functionplotrule /> 470: </functionplotruleset>'; 471: } 472: 473: sub insert_functionplotelements { 474: return ' 475: <functionplotelements> 476: <spline /> 477: </functionplotelements>'; 478: } 479: 480: sub insert_numericalresponse { 481: return ' 482: <numericalresponse answer=""> 483: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" /> 484: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" /> 485: <textline /> 486: <hintgroup> 487: <startouttext /><endouttext /> 488: </hintgroup> 489: </numericalresponse>'; 490: } 491: 492: sub insert_externalresponse { 493: return ' 494: <externalresponse url="" answer="" answerdisplay="" form=""> 495: <textfield spellcheck="none" /> 496: </externalresponse>'; 497: } 498: 499: sub insert_customresponse { 500: return ' 501: <customresponse> 502: <answer type="loncapa/perl"> 503: </answer> 504: <textline /> 505: <hintgroup> 506: <startouttext /><endouttext /> 507: </hintgroup> 508: </customresponse>'; 509: } 510: 511: sub insert_customresponse_answer { 512: return ' 513: <answer type="loncapa/perl"> 514: </answer> 515: '; 516: } 517: 518: sub insert_customhint { 519: return ' 520: <customhint> 521: <answer type="loncapa/perl"> 522: </answer> 523: </customhint>'; 524: } 525: 526: sub insert_customhint_answer { 527: return ' 528: <answer type="loncapa/perl"> 529: </answer> 530: '; 531: } 532: 533: sub insert_mathresponse { 534: return ' 535: <mathresponse> 536: <answer> 537: </answer> 538: <textline /> 539: <hintgroup> 540: <startouttext /> 541: <endouttext /> 542: </hintgroup> 543: </mathresponse>'; 544: } 545: 546: sub insert_mathresponse_answer { 547: return ' 548: <answer> 549: </answer> 550: '; 551: } 552: 553: sub insert_mathhint { 554: return ' 555: <mathhint> 556: <answer> 557: </answer> 558: </mathhint>'; 559: } 560: 561: sub insert_mathhint_answer { 562: return ' 563: <answer> 564: </answer> 565: '; 566: } 567: 568: sub insert_stringresponse { 569: return ' 570: <stringresponse answer="" type=""> 571: <textline /> 572: <hintgroup> 573: <startouttext /><endouttext /> 574: </hintgroup> 575: </stringresponse>'; 576: } 577: 578: sub insert_essayresponse { 579: return ' 580: <essayresponse> 581: <textfield></textfield> 582: </essayresponse>'; 583: } 584: 585: sub insert_imageresponse { 586: return ' 587: <imageresponse max="1"> 588: <foilgroup> 589: <foil> 590: </foil> 591: </foilgroup> 592: <hintgroup> 593: <startouttext /><endouttext /> 594: </hintgroup> 595: </imageresponse>'; 596: } 597: 598: sub insert_optionresponse { 599: return ' 600: <optionresponse max="10"> 601: <foilgroup options=""> 602: <foil> 603: <startouttext /><endouttext /> 604: </foil> 605: </foilgroup> 606: <hintgroup> 607: <startouttext /><endouttext /> 608: </hintgroup> 609: </optionresponse>'; 610: } 611: 612: sub insert_organicresponse { 613: return ' 614: <organicresponse> 615: <textline /> 616: <hintgroup> 617: <startouttext /><endouttext /> 618: </hintgroup> 619: </organicresponse>'; 620: } 621: 622: sub insert_organicstructure { 623: return ' 624: <organicstructure /> 625: '; 626: } 627: 628: sub insert_radiobuttonresponse { 629: return ' 630: <radiobuttonresponse max="10"> 631: <foilgroup> 632: <foil> 633: <startouttext /><endouttext /> 634: </foil> 635: </foilgroup> 636: <hintgroup> 637: <startouttext /><endouttext /> 638: </hintgroup> 639: </radiobuttonresponse>'; 640: } 641: 642: sub insert_reactionresponse { 643: return ' 644: <reactionresponse> 645: <textline /> 646: <hintgroup> 647: <startouttext /><endouttext /> 648: </hintgroup> 649: </reactionresponse>'; 650: } 651: 652: sub insert_rankresponse { 653: return ' 654: <rankresponse max="10"> 655: <foilgroup options=""> 656: <foil> 657: <startouttext /><endouttext /> 658: </foil> 659: </foilgroup> 660: <hintgroup> 661: <startouttext /><endouttext /> 662: </hintgroup> 663: </rankresponse>'; 664: } 665: 666: sub insert_matchresponse { 667: return ' 668: <matchresponse max="10"> 669: <foilgroup options=""> 670: <itemgroup> 671: <item> 672: <startouttext /><endouttext /> 673: </item> 674: </itemgroup> 675: <foil> 676: <startouttext /><endouttext /> 677: </foil> 678: </foilgroup> 679: <hintgroup> 680: <startouttext /><endouttext /> 681: </hintgroup> 682: </matchresponse>'; 683: } 684: 685: sub insert_startpartmarker { return '<startpartmarker />'; } 686: sub insert_endpartmarker { return '<endpartmarker />'; } 687: 688: sub insert_displayduedate { return '<displayduedate />'; } 689: sub insert_displaytitle { return '<displaytitle />'; } 690: sub insert_hintpart { 691: return ' 692: <hintpart on="default"> 693: <startouttext/><endouttext /> 694: </hintpart>'; 695: } 696: 697: sub insert_hintgroup { 698: return ' 699: <hintgroup> 700: <startouttext /><endouttext /> 701: </hintgroup>'; 702: } 703: 704: sub insert_numericalhint { 705: return ' 706: <numericalhint> 707: </numericalhint>'; 708: } 709: 710: sub insert_reactionhint { 711: return ' 712: <reactionhint> 713: </reactionhint>'; 714: } 715: 716: sub insert_organichint { 717: return ' 718: <organichint> 719: </organichint>'; 720: } 721: 722: sub insert_stringhint { 723: return ' 724: <stringhint> 725: </stringhint>'; 726: } 727: 728: sub insert_formulahint { 729: return ' 730: <formulahint> 731: </formulahint>'; 732: } 733: 734: sub insert_radiobuttonhint { 735: return ' 736: <radiobuttonhint> 737: </radiobuttonhint>'; 738: } 739: 740: sub insert_optionhint { 741: return ' 742: <optionhint> 743: </optionhint>'; 744: } 745: 746: sub insert_startouttext { 747: return "<startouttext /><endouttext />"; 748: } 749: 750: sub insert_script { 751: return "\n<script type=\"loncapa/perl\"></script>"; 752: } 753: 754: sub js_change_detection { 755: my $unsaved=&mt("There are unsaved changes"); 756: return (<<SCRIPT); 757: <script type="text/javascript"> 758: // <![CDATA[ 759: var clean = true; 760: var is_submit = false; 761: var still_ask = false; 762: function compareForm(event_) { 763: if (!event_ && window.event) { 764: event_ = window.event; 765: } 766: if ((!is_submit || (is_submit && still_ask)) && !clean) { 767: still_ask = false; 768: is_submit = false; 769: event_.returnValue = "$unsaved"; 770: return "$unsaved"; 771: } 772: } 773: function unClean() { 774: clean=false; 775: } 776: window.onbeforeunload = compareForm; 777: // ]]> 778: </script> 779: SCRIPT 780: } 781: 782: sub form_change_detection { 783: return ' onsubmit="is_submit=true;" '; 784: } 785: 786: sub element_change_detection { 787: return ' onchange="unClean();" '; 788: } 789: 790: sub submit_ask_anyway { 791: my ($extra_action) = @_; 792: my $resource = &Apache::loncommon::escape_single($env{'request.ambiguous'}); 793: return ' onclick="saveScrollPosition(\''.$resource.'\');still_ask=true;'.$extra_action.';" '; 794: } 795: 796: sub submit_dont_ask { 797: my ($extra_action) = @_; 798: my $resource = &Apache::loncommon::escape_single($env{'request.ambiguous'}); 799: return ' onclick="saveScrollPosition(\''.$resource.'\');is_submit=true;'.$extra_action.';" '; 800: } 801: 802: sub js_update_linknum { 803: return (<<SCRIPT); 804: <script type="text/javascript"> 805: // <![CDATA[ 806: function updateNumber(name,index,caller,textprompt) { 807: var pickitem = document.getElementById(name+'_'+index); 808: var picknumtext = document.getElementById(name+'_numtext_'+index); 809: if (pickitem.checked) { 810: var showval = ''; 811: if (pickitem.value != 'nochoice') { 812: showval = pickitem.value; 813: } 814: var picknum=prompt(textprompt,showval); 815: if (picknum == '' || picknum == null) { 816: if (caller == 'check') { 817: pickitem.checked=false; 818: pickitem.value='nochoice'; 819: } 820: } else { 821: picknum.toString(); 822: var regexdigit=/^\\d+\$/; 823: if (regexdigit.test(picknum)) { 824: pickitem.value = picknum; 825: picknumtext.innerHTML = ' <a href="javascript:updateNumber(\\''+name+'\\',\\''+index+'\\',\\'link\\',\\''+textprompt+'\\');">'+picknum+'</a>'; 826: } else { 827: if (caller == 'check') { 828: pickitem.checked=false; 829: pickitem.value='nochoice'; 830: } 831: return; 832: } 833: } 834: } else { 835: pickitem.value = ''; 836: picknumtext.innerHTML = ''; 837: } 838: } 839: 840: // ]]> 841: </script> 842: SCRIPT 843: 844: } 845: 846: sub textarea_sizes { 847: my ($data)=@_; 848: my $count=0; 849: my $maxlength=-1; 850: foreach (split ("\n", $$data)) { 851: $count+=int(length($_)/79); 852: $count++; 853: if (length($_) > $maxlength) { $maxlength = length($_); } 854: } 855: my $rows = $count; 856: my $cols = $maxlength; 857: return ($rows,$cols); 858: } 859: 860: sub editline { 861: my ($tag,$data,$description,$size)=@_; 862: $data=&HTML::Entities::encode($data,'<>&"'); 863: if ($description) { $description=$description."<br />"; } 864: my $change_code = &element_change_detection(); 865: my $result = <<"END"; 866: $description 867: <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 868: value="$data" size="$size" $change_code /> 869: END 870: return $result; 871: } 872: 873: sub editfield { 874: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_; 875: 876: my ($rows,$cols)=&textarea_sizes(\$data); 877: my $textareaclass; 878: 879: if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) { 880: $rows+=7; # make room for HTMLarea 881: $minheight+=7; # make room for HTMLarea 882: $textareaclass = ' class="LC_richDefaultOff"'; 883: } 884: if ($cols > 80) { $cols = 80; } 885: if ($cols < $minwidth ) { $cols = $minwidth; } 886: if ($rows < $minheight) { $rows = $minheight; } 887: if ($description) { $description='<br />'.&mt($description).'<br />'; } 888: 889: # remove typesetting whitespace from between data and the end tag 890: # to make the edit look prettier 891: $data =~ s/\n?[ \t]*$//; 892: 893: return $description."\n".'<textarea style="width:99%" rows="'.$rows. 894: '" cols="'.$cols.'" name="homework_edit_'. 895: $Apache::lonxml::curdepth.'" id="homework_edit_'. 896: $Apache::lonxml::curdepth.'" '.&element_change_detection(). 897: $textareaclass.'>'. 898: &HTML::Entities::encode($data,'<>&"').'</textarea>'. 899: ($usehtmlarea?'<br />'.&Apache::lonhtmlcommon::spelllink('lonhomework', 900: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n"; 901: } 902: 903: sub modifiedfield { 904: my ($endtag,$parser) = @_; 905: my $result; 906: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"}; 907: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser); 908: # textareas throw away intial \n 909: if ($bodytext=~/^\n/) { 910: $result="\n".$result; 911: } 912: # if there is typesetting whitespace from between the data and the end tag 913: # restore to keep the source looking pretty 914: if ($bodytext =~ /(\n?[ \t]*)$/) { 915: $result .= $1; 916: } 917: return $result; 918: } 919: 920: # Returns a 1 if the token has been modified and you should rebuild the tag 921: # side-effects, will modify the $token if new values are found 922: sub get_new_args { 923: my ($token,$parstack,$safeeval,@args)=@_; 924: my $rebuild=0; 925: foreach my $arg (@args) { 926: #just want the string that it was set to 927: my $value=$token->[2]->{$arg}; 928: my $element=&html_element_name($arg); 929: my $newvalue=$env{"form.$element"}; 930: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:"); 931: if (defined($newvalue) && $value ne $newvalue) { 932: if (ref($newvalue) eq 'ARRAY') { 933: $token->[2]->{$arg}=join(',',@$newvalue); 934: } else { 935: $token->[2]->{$arg}=$newvalue; 936: } 937: $rebuild=1; 938: # add new attributes to the of the attribute seq 939: if (!grep { $arg eq $_ } (@{ $token->[3] })) { 940: push(@{ $token->[3] },$arg); 941: } 942: } elsif (!defined($newvalue) && defined($value)) { 943: delete($token->[2]->{$arg}); 944: $rebuild=1; 945: } 946: } 947: return $rebuild; 948: } 949: 950: # looks for /> on start tags 951: sub rebuild_tag { 952: my ($token) = @_; 953: my $result; 954: if ($token->[0] eq 'S') { 955: $result = '<'.$token->[1]; 956: foreach my $attribute (@{ $token->[3] }) { 957: my $value = $token->[2]{$attribute}; 958: next if ($value eq ''); 959: $value =~s/^\s+|\s+$//g; 960: $value =~s/\"//g; 961: &Apache::lonxml::debug("setting :$attribute: to :$value:"); 962: $result.=' '.$attribute.'="'.$value.'"'; 963: } 964: if ($token->[4] =~ m:/>$:) { 965: $result.=' />'; 966: } else { 967: $result.='>'; 968: } 969: } elsif ( $token->[0] eq 'E' ) { 970: $result = '</'.$token->[1].'>'; 971: } 972: return $result; 973: } 974: 975: sub html_element_name { 976: my ($name) = @_; 977: return $name.'_'.$Apache::lonxml::curdepth; 978: } 979: 980: sub hidden_arg { 981: my ($name,$token) = @_; 982: my $result; 983: my $arg=$token->[2]{$name}; 984: $result='<input name="'.&html_element_name($name). 985: '" type="hidden" value="'.$arg.'" />'; 986: return $result; 987: } 988: 989: sub checked_arg { 990: my ($description,$name,$list,$token,$onclick,$useid) = @_; 991: my $result; 992: my $optionlist=""; 993: my $allselected=$token->[2]{$name}; 994: $result=&mt($description); 995: foreach my $option (@$list) { 996: my ($value,$text); 997: if ( ref($option) eq 'ARRAY') { 998: $value='value="'.$$option[0].'"'; 999: $text=&mt($$option[1]); 1000: $option=$$option[0]; 1001: } else { 1002: $text=&mt($option); 1003: $value='value="'.$option.'"'; 1004: } 1005: $result.=' <span class="LC_edit_opt"><label><input type="checkbox" '.$value.' name="'. 1006: &html_element_name($name).'"'; 1007: foreach my $selected (split(/,/,$allselected)) { 1008: if ( $selected eq $option ) { 1009: $result.=' checked="checked" '; 1010: last; 1011: } 1012: } 1013: if ($useid) { 1014: $result .= ' id="'.&html_element_name($name).'" '; 1015: } 1016: $result.=&element_change_detection().$onclick.' />'.$text.'</label></span>'."\n"; 1017: } 1018: return $result; 1019: } 1020: 1021: sub text_arg { 1022: my ($description,$name,$token,$size, $class) = @_; 1023: my $result; 1024: if (!defined $size) { $size=20; } 1025: my $arg=$token->[2]{$name}; 1026: $result=&mt($description).' <input name="'.&html_element_name($name). 1027: '" type="text" value="'.$arg.'" size="'.$size.'" '; 1028: if (defined $class) { 1029: $result .= 'class="' . $class . '" '; 1030: } 1031: $result .= &element_change_detection().'/>'; 1032: return ' <span class="LC_edit_opt">'.$result.'</span>'; 1033: } 1034: 1035: sub select_arg { 1036: my ($description,$name,$list,$token) = @_; 1037: my $result; 1038: my $optionlist=""; 1039: my $selected=$token->[2]{$name}; 1040: if (ref($list) eq 'ARRAY') { 1041: foreach my $option (@{$list}) { 1042: my ($text,$value); 1043: if (ref($option) eq 'ARRAY') { 1044: $value='value="'.&HTML::Entities::encode($option->[0]).'"'; 1045: $text=$option->[1]; 1046: $option=$option->[0]; 1047: } else { 1048: $text=$option; 1049: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"'; 1050: } 1051: if ( $selected eq $option ) { 1052: $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n"; 1053: } else { 1054: $optionlist.="<option $value >".&mt($text)."</option>\n"; 1055: } 1056: } 1057: } 1058: $result.=' <span class="LC_edit_opt">'.&mt($description).' <select name="'. 1059: &html_element_name($name).'" '.&element_change_detection().' > 1060: '.$optionlist.' 1061: </select></span>'; 1062: return $result; 1063: } 1064: 1065: sub select_or_text_arg { 1066: my ($description,$name,$list,$token,$size) = @_; 1067: my $result; 1068: my $optionlist=""; 1069: my $found=0; 1070: my $selected=$token->[2]{$name}; 1071: if (ref($list) eq 'ARRAY') { 1072: foreach my $option (@{$list}) { 1073: my ($text,$value); 1074: if (ref($option) eq 'ARRAY') { 1075: $value='value="'.&HTML::Entities::encode($option->[0]).'"'; 1076: $text=$option->[1]; 1077: $option=$option->[0]; 1078: } else { 1079: $text=$option; 1080: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"'; 1081: } 1082: if ( $selected eq $option ) { 1083: $optionlist.="<option $value selected=\"selected\">$text</option>\n"; 1084: $found=1; 1085: } else { 1086: $optionlist.="<option $value>$text</option>\n"; 1087: } 1088: } 1089: } 1090: $optionlist.="<option value=\"TYPEDINVALUE\"". 1091: ((!$found)?' selected="selected"':''). 1092: ">".&mt('Type-in value')."</option>\n"; 1093: # 1094: my $change_code=&element_change_detection(); 1095: my $element=&html_element_name($name); 1096: my $selectelement='select_list_'.$element; 1097: my $typeinelement='type_in_'.$element; 1098: my $typeinvalue=($found?'':$selected); 1099: # 1100: my $hiddenvalue='this.form.'.$element.'.value'; 1101: my $selectedindex='this.form.'.$selectelement.'.selectedIndex'; 1102: my $selectedvalue='this.form.'.$selectelement. 1103: '.options['.$selectedindex.'].value'; 1104: my $typedinvalue='this.form.'.$typeinelement.'.value'; 1105: my $selecttypeinindex='this.form.'.$selectelement.'.options.length'; 1106: $description=&mt($description); 1107: # 1108: return (<<ENDSELECTORTYPE); 1109: <span class="LC_edit_opt"> 1110: $description 1111:  <select name="$selectelement" 1112: onchange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" > 1113: $optionlist 1114: </select> 1115: <input type="text" size="$size" name="$typeinelement" 1116: value="$typeinvalue" 1117: onchange="$hiddenvalue=$typedinvalue;" 1118: onfocus="$selectedindex=$selecttypeinindex-1;" /> 1119: <input type="hidden" name="$element" value="$selected" $change_code /> 1120: </span> 1121: ENDSELECTORTYPE 1122: } 1123: 1124: #----------------------------------------------------- image coordinates 1125: # single image coordinates, x, y 1126: sub entercoords { 1127: my ($idx,$idy,$mode,$width,$height) = @_; 1128: unless ($Apache::edit::bgimgsrc) { return ''; } 1129: if ($idx) { $idx.='_'; } 1130: if ($idy) { $idy.='_'; } 1131: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc)); 1132: my $form = 'lonhomework'; 1133: my $element; 1134: if (! defined($mode) || $mode eq 'attribute') { 1135: $element = &escape("$Apache::lonxml::curdepth"); 1136: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 1137: $element = &escape('homework_edit_'. 1138: $Apache::lonxml::curdepth); 1139: } 1140: my $id=$Apache::lonxml::curdepth; 1141: my %data=("imagechoice.$id.type" =>'point', 1142: "imagechoice.$id.formname" =>$form, 1143: "imagechoice.$id.formx" =>"$idx$element", 1144: "imagechoice.$id.formy" =>"$idy$element", 1145: "imagechoice.$id.file" =>$bgfile, 1146: "imagechoice.$id.formcoord" =>$element); 1147: if ($height) { 1148: $data{"imagechoice.$id.formheight"}=$height.'_'. 1149: $Apache::edit::bgimgsrccurdepth; 1150: } 1151: if ($width) { 1152: $data{"imagechoice.$id.formwidth"}=$width.'_'. 1153: $Apache::edit::bgimgsrccurdepth; 1154: } 1155: &Apache::lonnet::appenv(\%data); 1156: my $text="Click Coordinates"; 1157: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>'; 1158: return $result; 1159: } 1160: 1161: # coordinates (x1,y1)-(x2,y2)... 1162: # mode can be either box, or polygon 1163: sub entercoord { 1164: my ($idx,$mode,$width,$height,$type) = @_; 1165: unless ($Apache::edit::bgimgsrc) { return ''; } 1166: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc)); 1167: my $form = 'lonhomework'; 1168: my $element; 1169: if (! defined($mode) || $mode eq 'attribute') { 1170: $element = &escape("$idx\_$Apache::lonxml::curdepth"); 1171: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 1172: $element = &escape('homework_edit_'. 1173: $Apache::lonxml::curdepth); 1174: } 1175: my $id=$Apache::lonxml::curdepth; 1176: my %data=("imagechoice.$id.type" =>$type, 1177: "imagechoice.$id.formname" =>$form, 1178: "imagechoice.$id.file" =>$bgfile, 1179: "imagechoice.$id.formcoord" =>$element); 1180: if ($height) { 1181: $data{"imagechoice.$id.formheight"}=$height.'_'. 1182: $Apache::edit::bgimgsrccurdepth; 1183: } 1184: if ($width) { 1185: $data{"imagechoice.$id.formwidth"}=$width.'_'. 1186: $Apache::edit::bgimgsrccurdepth; 1187: } 1188: &Apache::lonnet::appenv(\%data); 1189: my $text="Enter Coordinates"; 1190: if ($type eq 'polygon') { $text='Create Polygon Data'; } 1191: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>'; 1192: return $result; 1193: } 1194: 1195: sub deletecoorddata { 1196: &Apache::lonnet::delenv('imagechoice.'); 1197: } 1198: 1199: #----------------------------------------------------- browse and search links 1200: sub browse_or_search { 1201: my ($id,$mode,$titleid,$only,$crsonly,$usesearch) = @_; 1202: my $output; 1203: my ($cnum,$cdom) = &Apache::loncommon::crsauthor_url(); 1204: if ($cnum) { 1205: my $form = 'lonhomework'; 1206: my ($element,$bretitleelement,$srchtitleelement); 1207: $element = &get_element($id,$mode); 1208: my %lt = &Apache::lonlocal::texthash ( 1209: uacf => 'Use a course file', 1210: uanf => 'Use a new file', 1211: impo => 'Import', 1212: sear => 'Search', 1213: sefi => 'Select File', 1214: upfi => 'Upload File', 1215: dire => 'Directory', 1216: news => 'New sub-directory', 1217: empd => 'No suitable resources found', 1218: ); 1219: my ($importcrsres,$uploadfile,$allonly); 1220: if ($only) { 1221: $allonly = $only; 1222: if ($crsonly) { 1223: $allonly .= ','.$crsonly; 1224: } 1225: } elsif ($crsonly) { 1226: $allonly = $crsonly; 1227: } 1228: my ($numdirs,$pickfile) = 1229: &Apache::loncommon::import_crsauthor_form('coursepath_'.$element,'coursefile_'.$element,undef,$allonly,$element); 1230: $importcrsres=(<<CRSRES); 1231: <fieldset id="importcrsresform_$element" style="display:inline;"> 1232: <legend>$lt{'uacf'}</legend> 1233: <div id="hascrsres_$element" style="padding:0;clear:both;margin:0;border:0;display:none;"> 1234: <p> 1235: $pickfile 1236: </p><p> 1237: <input type="button" name="crsres_$element" value="$lt{'sefi'}" onclick="updateCrsFile(this.form,'$element');" /> 1238: </p> 1239: </div> 1240: <div id="nocrsres_$element" style="padding:0;clear:both;margin:0;border:0display:none;"> 1241: <p> 1242: $lt{'empd'} 1243: </p> 1244: </div> 1245: </fieldset> 1246: CRSRES 1247: my %subdirs; 1248: my $toppath="/priv/$cdom/$cnum"; 1249: my $exclude = &Apache::lonnet::priv_exclude(); 1250: &Apache::lonnet::recursedirs(1,1,'',$exclude,'',0,$toppath,'',\%subdirs); 1251: my $numcrsdirs = keys(%subdirs); 1252: my $pickdir = $lt{'dire'}.'<select name="crsauthorpath_'.$element.'">'."\n". 1253: '<option value="/">/</option>'."\n"; 1254: if ($numcrsdirs) { 1255: foreach my $key (sort { lc($a) cmp lc($b) } (keys(%subdirs))) { 1256: $pickdir .= '<option value="'.$key.'">'.$key.'</option>'."\n"; 1257: } 1258: } 1259: $pickdir .= '</select><br />'; 1260: my $uploadfile =(<<CRSUPL); 1261: <fieldset id="uploadcrsresform_$element" style="display:inline;"> 1262: <legend>$lt{'uanf'}</legend> 1263: <p> 1264: $pickdir 1265: <span class="LC_nobreak">$lt{'news'}?  1266: <label><input type="radio" name="newsubdir_$element" value="0" onclick="toggleNewsubdir(this.form,'$element');" checked="checked" />No</label> 1267:   1268: <label><input type="radio" name="newsubdir_$element" value="1" onclick="toggleNewsubdir(this.form,'$element');" />Yes</label> 1269: </span><span id="newsubdir_$element"></span> 1270: <input type="hidden" name="newsubdirname_$element" id="newsubdirname_$element" value="" autocomplete="off" /> 1271: </p> 1272: <input type="file" id="uploadcrsres_$element" name="uploadcrsres_$element" size="40" /> 1273: <input type="hidden" id="crsuploadto_$element" name="filename_$element" value="$ENV{'REQUEST_URI'}" /> 1274: <input type="submit" id="crsupload_$element" class="LC_uploadcrsres" value="$lt{'upfi'}" /> 1275: <iframe id="crsupload_target_$element" name="crsupload_target_$element" src="" style="width:0px;height:0px;border:0px"></iframe> 1276: </fieldset> 1277: CRSUPL 1278: if ($titleid) { 1279: $bretitleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'"; 1280: $srchtitleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'"; 1281: } else { 1282: $bretitleelement=",'$only'"; 1283: } 1284: $output = '<a href="javascript:toggleChooser(document.'.$form.",'$element'".');">'. 1285: &mt('Choose File').'</a>'. 1286: '<div id="chooser_'.$element.'" style="display:none" class="LC_left_float">'. 1287: '<fieldset><legend>'.&mt('Choose File').'</legend>'. 1288: '<label><input type="radio" name="chooser_'.$element.'" value="crsres" onclick="toggleCrsFile(this.form,'."'$element'".')" />'.$lt{'uacf'}.'</label> '. 1289: '<label><input type="radio" name="chooser_'.$element.'" value="upload" onclick="toggleCrsUpload(this.form,'."'$element'".')" />'.$lt{'uanf'}.'</label> '. 1290: '<label><input type="radio" name="chooser_'.$element.'" value="import" onclick="toggleResImport(this.form,'."'$element'".');openbrowser('."'$form','$element'$bretitleelement)".'" />'.$lt{'impo'}.'</label>'; 1291: if ($usesearch) { 1292: $output .= ' <label><input type="radio" name="chooser_'.$element.'" value="search" onclick="opensearcher('."'$form','$element'$srchtitleelement".')" />'.$lt{'sear'}.'</label>'; 1293: } 1294: $output .= '<div id="chooser_'.$element.'_crsres" style="display:none">'. 1295: $importcrsres. 1296: '</div>'. 1297: '<div id="chooser_'.$element.'_upload" style="display:none">'. 1298: $uploadfile. 1299: '</div>'. 1300: '</fieldset></div>'; 1301: 1302: } else { 1303: $output = &browse($id, $mode, $titleid, $only); 1304: if ($usesearch) { 1305: $output .= ' '.&search($id, $mode, $titleid); 1306: } 1307: } 1308: return $output; 1309: } 1310: 1311: #----------------------------------------------------- browse 1312: sub browse { 1313: # insert a link to call up the filesystem browser (lonindexer) 1314: my ($id, $mode, $titleid, $only) = @_; 1315: my %lt = &Apache::lonlocal::texthash ( 1316: se => 'Select', 1317: ); 1318: my $form = 'lonhomework'; 1319: my $element = &get_element($id,$mode); 1320: my $titleelement; 1321: if ($titleid) { 1322: $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'"; 1323: } else { 1324: $titleelement=",'$only'"; 1325: } 1326: return <<"ENDBUTTON"; 1327: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>$lt{'se'}</a> 1328: ENDBUTTON 1329: } 1330: 1331: #----------------------------------------------------- search 1332: sub search { 1333: # insert a link to call up the filesystem browser (lonindexer) 1334: my ($id, $mode, $titleid) = @_; 1335: my $form = 'lonhomework'; 1336: my $element = &get_element($id,$mode); 1337: my $titleelement; 1338: if ($titleid) { 1339: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'"; 1340: } 1341: my $linktext = &mt('Search'); 1342: my $result = <<"ENDBUTTON"; 1343: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>$linktext</a> 1344: ENDBUTTON 1345: return $result; 1346: } 1347: 1348: sub get_element { 1349: my ($id,$mode) = @_; 1350: my $element; 1351: if (! defined($mode) || $mode eq 'attribute') { 1352: $element = &escape("$id\_$Apache::lonxml::curdepth"); 1353: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag> 1354: $element = &escape('homework_edit_'. 1355: $Apache::lonxml::curdepth); 1356: } 1357: return $element; 1358: } 1359: 1360: 1; 1361: __END__ 1362: 1363: