err.no Git - scalable-opengroupware.org/blob - UI/Common/UIxTabView.m

   1 /*
   2   Copyright (C) 2000-2004 SKYRIX Software AG
   3
   4   This file is part of OpenGroupware.org.
   5
   6   OGo is free software; you can redistribute it and/or modify it under
   7   the terms of the GNU Lesser General Public License as published by the
   8   Free Software Foundation; either version 2, or (at your option) any
   9   later version.
  10
  11   OGo is distributed in the hope that it will be useful, but WITHOUT ANY
  12   WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  14   License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with OGo; see the file COPYING.  If not, write to the
  18   Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19   02111-1307, USA.
  20 */
  21
  22 #include "UIxTabView.h"
  23 #include "common.h"
  24 #include <NGObjWeb/NGObjWeb.h>
  25 #include <NGExtensions/NGExtensions.h>
  26 #include <EOControl/EOControl.h>
  27 #include <NGObjWeb/WEClientCapabilities.h>
  28
  29 #if DEBUG
  30 // #  define DEBUG_TAKEVALUES 1
  31 #  define DEBUG_JS 1
  32 #endif
  33
  34 /* context keys */
  35 NSString *UIxTabView_HEAD      = @"UIxTabView_head";
  36 NSString *UIxTabView_BODY      = @"UIxTabView_body";
  37 NSString *UIxTabView_KEYS      = @"UIxTabView_keys";
  38 NSString *UIxTabView_SCRIPT    = @"UIxTabView_script";
  39 NSString *UIxTabView_ACTIVEKEY = @"UIxTabView_activekey";
  40 NSString *UIxTabView_COLLECT   = @"~tv~";
  41
  42 @implementation UIxTabView
  43
  44 static NSNumber *YesNumber;
  45
  46 + (void)initialize {
  47   if (YesNumber == nil)
  48     YesNumber = [[NSNumber numberWithBool:YES] retain];
  49 }
  50
  51 + (int)version {
  52   return [super version] + 0;
  53 }
  54
  55 - (id)initWithName:(NSString *)_name
  56   associations:(NSDictionary *)_config
  57   template:(WOElement *)_subs
  58 {
  59   if ((self = [super initWithName:_name associations:_config template:_subs])) {
  60     self->selection          = WOExtGetProperty(_config, @"selection");
  61
  62     self->headerStyle        = WOExtGetProperty(_config, @"headerStyle");
  63     self->bodyStyle          = WOExtGetProperty(_config, @"bodyStyle");
  64     self->tabStyle           = WOExtGetProperty(_config, @"tabStyle");
  65     self->selectedTabStyle   = WOExtGetProperty(_config, @"selectedTabStyle");
  66
  67     self->bgColor            = WOExtGetProperty(_config, @"bgColor");
  68     self->nonSelectedBgColor = WOExtGetProperty(_config, @"nonSelectedBgColor");
  69     self->leftCornerIcon     = WOExtGetProperty(_config, @"leftCornerIcon");
  70     self->rightCornerIcon    = WOExtGetProperty(_config, @"rightCornerIcon");
  71
  72     self->tabIcon            = WOExtGetProperty(_config, @"tabIcon");
  73     self->leftTabIcon        = WOExtGetProperty(_config, @"leftTabIcon");
  74     self->selectedTabIcon    = WOExtGetProperty(_config, @"selectedTabIcon");
  75
  76     self->asBackground       = WOExtGetProperty(_config, @"asBackground");
  77     self->width              = WOExtGetProperty(_config, @"width");
  78     self->height             = WOExtGetProperty(_config, @"height");
  79     self->activeBgColor      = WOExtGetProperty(_config, @"activeBgColor");
  80     self->inactiveBgColor    = WOExtGetProperty(_config, @"inactiveBgColor");
  81
  82     self->fontColor          = WOExtGetProperty(_config, @"fontColor");
  83     self->fontSize           = WOExtGetProperty(_config, @"fontSize");
  84     self->fontFace           = WOExtGetProperty(_config, @"fontFace");
  85
  86     self->template = RETAIN(_subs);
  87   }
  88   return self;
  89 }
  90
  91 - (void)dealloc {
  92   [self->selection release];
  93
  94   [self->headerStyle release];
  95   [self->bodyStyle release];
  96   [self->tabStyle release];
  97   [self->selectedTabStyle release];
  98
  99   RELEASE(self->bgColor);
 100   RELEASE(self->nonSelectedBgColor);
 101   RELEASE(self->leftCornerIcon);
 102   RELEASE(self->rightCornerIcon);
 103
 104   RELEASE(self->leftTabIcon);
 105   RELEASE(self->selectedTabIcon);
 106   RELEASE(self->tabIcon);
 107
 108   RELEASE(self->width);
 109   RELEASE(self->height);
 110
 111   RELEASE(self->activeBgColor);
 112   RELEASE(self->inactiveBgColor);
 113
 114   RELEASE(self->fontColor);
 115   RELEASE(self->fontSize);
 116   RELEASE(self->fontFace);
 117
 118   RELEASE(self->template);
 119   [super dealloc];
 120 }
 121
 122 /* nesting */
 123
 124 - (id)saveNestedStateInContext:(WOContext *)_ctx {
 125   return nil;
 126 }
 127 - (void)restoreNestedState:(id)_state inContext:(WOContext *)_ctx {
 128   if (_state == nil) return;
 129 }
 130
 131 - (NSArray *)collectKeysInContext:(WOContext *)_ctx {
 132   /* collect mode, collects all keys */
 133   [_ctx setObject:UIxTabView_COLLECT forKey:UIxTabView_HEAD];
 134
 135   [self->template appendToResponse:nil inContext:_ctx];
 136
 137   [_ctx removeObjectForKey:UIxTabView_HEAD];
 138   return [_ctx objectForKey:UIxTabView_KEYS];
 139 }
 140
 141 /* responder */
 142
 143 - (void)takeValuesFromRequest:(WORequest *)_req inContext:(WOContext *)_ctx {
 144   id       nestedState;
 145   NSString *activeTabKey;
 146
 147   activeTabKey = [self->selection stringValueInComponent:[_ctx component]];
 148   NSLog(@"%s activeTabKey:%@", __PRETTY_FUNCTION__, activeTabKey);
 149   nestedState = [self saveNestedStateInContext:_ctx];
 150   [_ctx appendElementIDComponent:@"b"];
 151   [_ctx appendElementIDComponent:activeTabKey];
 152
 153   [_ctx setObject:activeTabKey forKey:UIxTabView_BODY];
 154
 155 #if DEBUG_TAKEVALUES
 156   [[_ctx component] debugWithFormat:@"UIxTabView: body takes values, eid='%@'",
 157                     [_ctx elementID]];
 158 #endif
 159
 160   [self->template takeValuesFromRequest:_req inContext:_ctx];
 161
 162   [_ctx removeObjectForKey:UIxTabView_BODY];
 163   [_ctx deleteLastElementIDComponent]; // activeKey
 164   [_ctx deleteLastElementIDComponent]; /* 'b' */
 165   [self restoreNestedState:nestedState inContext:_ctx];
 166 }
 167
 168 - (id)invokeActionForRequest:(WORequest *)_req inContext:(WOContext *)_ctx {
 169   NSString *key;
 170   id       result;
 171   id       nestedState;
 172
 173   if ((key = [_ctx currentElementID]) == nil)
 174     return nil;
 175
 176   result      = nil;
 177   nestedState = [self saveNestedStateInContext:_ctx];
 178
 179   if ([key isEqualToString:@"h"]) {
 180     /* header action */
 181     //NSString *urlKey;
 182
 183     [_ctx consumeElementID];
 184     [_ctx appendElementIDComponent:@"h"];
 185 #if 0
 186     if ((urlKey = [_ctx currentElementID]) == nil) {
 187       [[_ctx application]
 188              debugWithFormat:@"missing active head tab key !"];
 189     }
 190     else {
 191       //NSLog(@"clicked: %@", urlKey);
 192       [_ctx consumeElementID];
 193       [_ctx appendElementIDComponent:urlKey];
 194     }
 195 #endif
 196
 197     [_ctx setObject:self->selection forKey:UIxTabView_HEAD];
 198     result = [self->template invokeActionForRequest:_req inContext:_ctx];
 199     [_ctx removeObjectForKey:UIxTabView_HEAD];
 200
 201 #if 0
 202     if (urlKey)
 203       [_ctx deleteLastElementIDComponent]; // active key
 204 #endif
 205     [_ctx deleteLastElementIDComponent]; // 'h'
 206   }
 207   else if ([key isEqualToString:@"b"]) {
 208     /* body action */
 209     NSString *activeTabKey, *urlKey;
 210
 211     [_ctx consumeElementID];
 212     [_ctx appendElementIDComponent:@"b"];
 213
 214     if ((urlKey = [_ctx currentElementID]) == nil) {
 215       [[_ctx application]
 216              debugWithFormat:@"missing active body tab key !"];
 217     }
 218     else {
 219       //NSLog(@"clicked: %@", urlKey);
 220       [_ctx consumeElementID];
 221       [_ctx appendElementIDComponent:urlKey];
 222     }
 223
 224     activeTabKey = [self->selection stringValueInComponent:[_ctx component]];
 225     [_ctx setObject:activeTabKey forKey:UIxTabView_BODY];
 226
 227     result = [self->template invokeActionForRequest:_req inContext:_ctx];
 228
 229     [_ctx removeObjectForKey:UIxTabView_BODY];
 230
 231     if (urlKey)
 232       [_ctx deleteLastElementIDComponent]; // active key
 233     [_ctx deleteLastElementIDComponent]; // 'b'
 234   }
 235   else {
 236     [[_ctx application]
 237            debugWithFormat:@"unknown tab container key '%@'", key];
 238   }
 239
 240   [self restoreNestedState:nestedState inContext:_ctx];
 241   return result;
 242 }
 243
 244 - (NSString *)_tabViewCountInContext:(WOContext *)_ctx {
 245   int count;
 246   count = [[_ctx valueForKey:@"UIxTabViewScriptDone"] intValue];
 247   return [NSString stringWithFormat:@"%d",count];
 248 }
 249
 250 - (NSString *)scriptHref:(UIxTabItemInfo *)_info
 251   inContext:(WOContext *)_ctx
 252   isLeft:(BOOL)_isLeft
 253   keys:(NSArray *)_keys
 254 {
 255   NSMutableString *result = [NSMutableString string];
 256   UIxTabItemInfo *tmp;
 257   NSString       *activeKey;
 258   int            i, cnt;
 259   NSString       *elID;
 260   NSString       *tstring;
 261
 262   activeKey = [self->selection stringValueInComponent:[_ctx component]];
 263   [result appendString:@"JavaScript:showTab("];
 264   [result appendString:_info->key];
 265   [result appendString:@"Tab);"];
 266
 267   [result appendString:@"swapCorners("];
 268   tstring = (!_isLeft)
 269     ? @"tabCorner%@,tabCornerLeft%@);"
 270     : @"tabCornerLeft%@,tabCorner%@);";
 271   elID = [self _tabViewCountInContext:_ctx];
 272   [result appendString:[NSString stringWithFormat:tstring,elID,elID]];
 273
 274   for (i=0, cnt = [_keys count]; i < cnt; i++) {
 275     tmp = [_keys objectAtIndex:i];
 276
 277     if ((tmp->isScript || [tmp->key isEqualToString:activeKey])
 278         && ![tmp->key isEqualToString:_info->key]) {
 279       [result appendString:@"hideTab("];
 280       [result appendString:tmp->key];
 281       [result appendString:@"Tab);"];
 282     }
 283   }
 284   return result;
 285 }
 286
 287 - (void)appendLink:(UIxTabItemInfo *)_info
 288   toResponse:(WOResponse *)_response
 289   inContext:(WOContext *)_ctx
 290   isActive:(BOOL)_isActive isLeft:(BOOL)_isLeft
 291   doScript:(BOOL)_doScript keys:(NSArray *)_keys
 292 {
 293   NSString *headUri    = nil;
 294   NSString *label      = nil;
 295   NSString *styleName  = nil;
 296   WEClientCapabilities *ccaps;
 297   WOComponent *comp;
 298
 299   ccaps = [[_ctx request] clientCapabilities];
 300
 301   comp = [_ctx component];
 302   headUri = _info->uri;
 303
 304   if ((label = _info->label) == nil)
 305     label = _info->key;
 306
 307   if (_isActive) {
 308     styleName = (_info->selectedTabStyle)
 309       ? _info->selectedTabStyle
 310       : [self->selectedTabStyle stringValueInComponent:comp];
 311   }
 312   else {
 313     styleName = (_info->tabStyle)
 314       ? _info->tabStyle
 315       : [self->tabStyle stringValueInComponent:comp];
 316   }
 317
 318   [_response appendContentString:@"<td align='center' valign='middle'"];
 319
 320   if (styleName) {
 321       [_response appendContentString:@" class='"];
 322       [_response appendContentHTMLAttributeValue:styleName];
 323       [_response appendContentCharacter:'\''];
 324   }
 325
 326   // click on td background
 327   if ([ccaps isInternetExplorer] && [ccaps isJavaScriptBrowser]) {
 328       [_response appendContentString:@" onclick=\"window.location.href='"];
 329       [_response appendContentHTMLAttributeValue:headUri];
 330       [_response appendContentString:@"'\""];
 331   }
 332
 333   [_response appendContentCharacter:'>'];
 334
 335   [_response appendContentString:@"<a href=\""];
 336
 337   [_response appendContentHTMLAttributeValue:headUri];
 338
 339   [_response appendContentString:@"\" "];
 340   [_response appendContentString:
 341                [NSString stringWithFormat:@"name='%@TabLink'", _info->key]];
 342   [_response appendContentString:@">"];
 343
 344   if ([label length] < 1)
 345       label = _info->key;
 346   [_response appendContentString:@"<nobr>"];
 347   [_response appendContentHTMLString:label];
 348   [_response appendContentString:@"</nobr>"];
 349
 350   [_response appendContentString:@"</a>"];
 351
 352   [_response appendContentString:@"</td>"];
 353 }
 354
 355 - (void)appendSubmitButton:(UIxTabItemInfo *)_info
 356   toResponse:(WOResponse *)_response
 357   inContext:(WOContext *)_ctx
 358   isActive:(BOOL)_isActive isLeft:(BOOL)_left
 359   doScript:(BOOL)_doScript   keys:(NSArray *)_keys
 360 {
 361   [self appendLink:_info
 362         toResponse:_response
 363         inContext:_ctx
 364         isActive:_isActive isLeft:_left
 365         doScript:NO keys:_keys];
 366 }
 367
 368 - (void)_appendTabViewJSScriptToResponse:(WOResponse *)_response
 369   inContext:(WOContext *)_ctx
 370 {
 371   [_response appendContentString:
 372                @"<script language=\"JavaScript\">\n<!--\n\n"
 373                @"function showTab(obj) {\n"
 374 #if DEBUG_JS
 375                @"  if (obj==null) { alert('missing tab obj ..'); return; }\n"
 376                @"  if (obj['Div']==null) {"
 377                @"    alert('missing div key in ' + obj); return; }\n"
 378                @"  if (obj['Div'].style==null) {"
 379                @"    alert('missing style key in div ' + obj['Div']);return; }\n"
 380 #endif
 381                @"  obj['Div'].style.display = \"\";\n"
 382                @"  obj['Img'].src = obj[\"Ar\"][1].src;\n"
 383                @"  obj['link'].href = obj[\"href2\"];\n"
 384                @"}\n"
 385                @"function hideTab(obj) {\n"
 386 #if DEBUG_JS
 387                @"  if (obj==null) { alert('missing tab obj ..'); return; }\n"
 388                @"  if (obj['Div']==null) {"
 389                @"    alert('missing div key in ' + obj); return; }\n"
 390                @"  if (obj['Div'].style==null) {"
 391                @"    alert('missing style key in div ' + obj['Div']);return; }\n"
 392 #endif
 393                @" obj['Div'].style.display = \"none\";\n"
 394                @" obj['Img'].src = obj[\"Ar\"][0].src;\n"
 395                @" obj['link'].href = obj[\"href1\"];\n"
 396                @"}\n"
 397                @"function swapCorners(obj1,obj2) {\n"
 398                @"   if (obj1==null) { alert('missing corner 1'); return; }\n"
 399                @"   if (obj2==null) { alert('missing corner 2'); return; }\n"
 400                @"   obj1.style.display = \"none\";\n"
 401                @"   obj2.style.display = \"\";\n"
 402                @"}\n"
 403                @"//-->\n</script>"];
 404 }
 405
 406 - (void)_appendHeaderRowToResponse:(WOResponse *)_response
 407   inContext:(WOContext *)_ctx
 408   keys:(NSArray *)keys activeKey:(NSString *)activeKey
 409   doScript:(BOOL)doScript
 410 {
 411   unsigned  i, count;
 412   BOOL      doForm;
 413   NSString  *styleName;
 414
 415   doForm = NO;  /* generate form controls ? */
 416
 417   [_response appendContentString:@"<tr><td colspan='2'>"];
 418
 419   styleName = [self->headerStyle stringValueInComponent:[_ctx component]];
 420   if(styleName) {
 421       [_response appendContentString:
 422           @"<table border='0' cellpadding='0' cellspacing='0' class='"];
 423       [_response appendContentHTMLAttributeValue:styleName];
 424       [_response appendContentString:@"'><tr>"];
 425   }
 426   else {
 427       [_response appendContentString:
 428           @"<table border='0' cellpadding='0' cellspacing='0'><tr>"];
 429   }
 430
 431   for (i = 0, count = [keys count]; i < count; i++) {
 432     UIxTabItemInfo *info;
 433     NSString       *key;
 434     BOOL           isActive;
 435
 436     info     = [keys objectAtIndex:i];
 437     key      = info->key;
 438     isActive = [key isEqualToString:activeKey];
 439
 440     [_ctx appendElementIDComponent:key];
 441
 442     if (doForm) {
 443       /* tab is inside of a FORM, so produce submit buttons */
 444       [self appendSubmitButton:info
 445             toResponse:_response
 446             inContext:_ctx
 447             isActive:isActive
 448             isLeft:(i == 0) ? YES : NO
 449             doScript:NO
 450             keys:keys];
 451     }
 452     else {
 453       /* tab is not in a FORM, generate hyperlinks for tab */
 454       [self appendLink:info
 455             toResponse:_response
 456             inContext:_ctx
 457             isActive:isActive
 458             isLeft:(i == 0) ? YES : NO
 459             doScript:NO
 460             keys:keys];
 461     }
 462
 463     [_ctx deleteLastElementIDComponent];
 464   }
 465   //  [_response appendContentString:@"<td></td>"];
 466   [_response appendContentString:@"</tr></table>"];
 467   [_response appendContentString:@"</td></tr>"];
 468 }
 469
 470 - (void)_appendHeaderFootRowToResponse:(WOResponse *)_response
 471   inContext:(WOContext *)_ctx
 472   bgcolor:(NSString *)bgcolor
 473   doScript:(BOOL)doScript
 474   isLeftActive:(BOOL)isLeftActive
 475 {
 476   NSString *styleName;
 477   [_response appendContentString:@"  <tr"];
 478
 479   styleName = [self->bodyStyle stringValueInComponent:[_ctx component]];
 480   if(styleName) {
 481     [_response appendContentString:@" class='"];
 482     [_response appendContentHTMLAttributeValue:styleName];
 483     [_response appendContentCharacter:'\''];
 484   }
 485   if (bgcolor) {
 486     [_response appendContentString:@" bgcolor=\""];
 487     [_response appendContentHTMLAttributeValue:bgcolor];
 488     [_response appendContentString:@"\""];
 489   }
 490   [_response appendContentString:@">\n"];
 491
 492   /* left corner */
 493   [_response appendContentString:@"    <td align=\"left\" width=\"10\">"];
 494
 495   if (isLeftActive)
 496     [_response appendContentString:@"&nbsp;"];
 497
 498   if (!isLeftActive) {
 499     NSString *uri;
 500
 501     uri = [self->leftCornerIcon stringValueInComponent:[_ctx component]];
 502     if ((uri = WEUriOfResource(uri, _ctx))) {
 503       [_response appendContentString:@"<img border=\"0\" alt=\"\" src=\""];
 504       [_response appendContentString:uri];
 505       [_response appendContentString:@"\" />"];
 506     }
 507     else
 508       [_response appendContentString:@"&nbsp;"];
 509   }
 510
 511   [_response appendContentString:@"</td>"];
 512
 513   /* right corner */
 514   [_response appendContentString:@"    <td align=\"right\">"];
 515   {
 516     NSString *uri;
 517
 518     uri = [self->rightCornerIcon stringValueInComponent:[_ctx component]];
 519     if ((uri = WEUriOfResource(uri, _ctx))) {
 520       [_response appendContentString:@"<img border=\"0\" alt=\"\" src=\""];
 521       [_response appendContentString:uri];
 522       [_response appendContentString:@"\" />"];
 523     }
 524     else
 525       [_response appendContentString:@"&nbsp;"];
 526   }
 527   [_response appendContentString:@"</td>\n"];
 528
 529   [_response appendContentString:@"  </tr>\n"];
 530 }
 531
 532 - (void)_appendBodyRowToResponse:(WOResponse *)_response
 533   inContext:(WOContext *)_ctx
 534   bgcolor:(NSString *)bgcolor
 535   activeKey:(NSString *)activeKey
 536 {
 537   WEClientCapabilities *ccaps;
 538   BOOL indentContent;
 539   NSString *styleName;
 540
 541   styleName = [self->bodyStyle stringValueInComponent:[_ctx component]];
 542   ccaps = [[_ctx request] clientCapabilities];
 543
 544   /* put additional padding table into content ??? */
 545   indentContent = [ccaps isFastTableBrowser] && ![ccaps isTextModeBrowser];
 546
 547   [_response appendContentString:@"<tr"];
 548   if(styleName) {
 549     [_response appendContentString:@" class='"];
 550     [_response appendContentHTMLAttributeValue:styleName];
 551     [_response appendContentCharacter:'\''];
 552   }
 553   [_response appendContentString:@"><td colspan='2'"];
 554   if (bgcolor) {
 555     [_response appendContentString:@" bgcolor=\""];
 556     [_response appendContentHTMLAttributeValue:bgcolor];
 557     [_response appendContentCharacter:'\"'];
 558   }
 559   [_response appendContentCharacter:'>'];
 560
 561   if (indentContent) {
 562     /* start padding table */
 563     [_response appendContentString:
 564                @"<table border='0' width='100%'"
 565                @" cellpadding='10' cellspacing='0'>"];
 566     [_response appendContentString:@"<tr><td>"];
 567   }
 568
 569   [_ctx appendElementIDComponent:@"b"];
 570   [_ctx appendElementIDComponent:activeKey];
 571
 572   /* generate currently active body */
 573   {
 574     [_ctx setObject:activeKey forKey:UIxTabView_BODY];
 575     [self->template appendToResponse:_response inContext:_ctx];
 576     [_ctx removeObjectForKey:UIxTabView_BODY];
 577   }
 578
 579   [_ctx deleteLastElementIDComponent]; // activeKey
 580   [_ctx deleteLastElementIDComponent]; // 'b'
 581
 582   if (indentContent)
 583     /* close padding table */
 584     [_response appendContentString:@"</td></tr></table>"];
 585
 586   [_response appendContentString:@"</td></tr>"];
 587 }
 588
 589 - (BOOL)isLeftActiveInKeys:(NSArray *)keys activeKey:(NSString *)activeKey{
 590   unsigned i, count;
 591   BOOL isLeftActive;
 592
 593   isLeftActive = NO;
 594
 595   for (i = 0, count = [keys count]; i < count; i++) {
 596     UIxTabItemInfo *info;
 597
 598     info = [keys objectAtIndex:i];
 599
 600     if ((i == 0) && [info->key isEqualToString:activeKey])
 601       isLeftActive = YES;
 602   }
 603
 604   return isLeftActive;
 605 }
 606
 607 - (void)appendToResponse:(WOResponse *)_response inContext:(WOContext *)_ctx {
 608   WOComponent  *cmp;
 609   NSString     *bgcolor;
 610   BOOL         isLeftActive;
 611   id           nestedState;
 612   NSString     *activeKey;
 613   NSArray      *keys;
 614   int          tabViewCount; /* used for image id's and writing script once */
 615
 616   tabViewCount  = [[_ctx valueForKey:@"UIxTabViewScriptDone"] intValue];
 617   cmp           = [_ctx component];
 618
 619   /* save state */
 620
 621   nestedState = [self saveNestedStateInContext:_ctx];
 622
 623   /* configure */
 624
 625   activeKey = [self->selection stringValueInComponent:cmp];
 626
 627   bgcolor = [self->bgColor stringValueInComponent:cmp];
 628   bgcolor = [bgcolor stringValue];
 629
 630   [_ctx appendElementIDComponent:@"h"];
 631
 632   /* collect & process keys (= available tabs) */
 633
 634   keys = [self collectKeysInContext:_ctx];
 635
 636   if (![[keys valueForKey:@"key"] containsObject:activeKey])
 637     /* selection is not available in keys */
 638     activeKey = nil;
 639
 640   if ((activeKey == nil) && ([keys count] > 0)) {
 641     /* no or invalid selection, use first key */
 642     activeKey = [[keys objectAtIndex:0] key];
 643     if ([self->selection isValueSettable])
 644       [self->selection setValue:activeKey inComponent:[_ctx component]];
 645   }
 646
 647   /* start appending */
 648
 649   /* count up for unique tabCorner/tabCornerLeft images */
 650   [_ctx takeValue:[NSNumber numberWithInt:(tabViewCount + 1)]
 651         forKey:@"UIxTabViewScriptDone"];
 652
 653   [_response appendContentString:
 654                @"<table border='0' width='100%'"
 655                @" cellpadding='0' cellspacing='0'>"];
 656
 657   /* find out whether left is active */
 658
 659   isLeftActive = [self isLeftActiveInKeys:keys activeKey:activeKey];
 660
 661   /* generate header row */
 662
 663   [self _appendHeaderRowToResponse:_response inContext:_ctx
 664         keys:keys activeKey:activeKey
 665         doScript:NO];
 666
 667   [_ctx deleteLastElementIDComponent]; // 'h' for head
 668   [_ctx removeObjectForKey:UIxTabView_HEAD];
 669
 670   /* body row */
 671
 672   [self _appendBodyRowToResponse:_response inContext:_ctx
 673         bgcolor:bgcolor
 674         activeKey:activeKey];
 675
 676   /* close table */
 677
 678   [_response appendContentString:@"</table>"];
 679   [_ctx removeObjectForKey:UIxTabView_ACTIVEKEY];
 680   [_ctx removeObjectForKey:UIxTabView_KEYS];
 681   [self restoreNestedState:nestedState inContext:_ctx];
 682 }
 683
 684 @end /* UIxTabView */