CyteKit/WebViewController.mm

   1 #include "CyteKit/UCPlatform.h"
   2 #include "CyteKit/WebViewController.h"
   3
   4 #include "CyteKit/MFMailComposeViewController-MailToURL.h"
   5
   6 #include "iPhonePrivate.h"
   7
   8 #include "CyteKit/IndirectDelegate.h"
   9 #include "CyteKit/Localize.h"
  10 #include "CyteKit/WebViewController.h"
  11 #include "CyteKit/RegEx.hpp"
  12 #include "CyteKit/WebThreadLocked.hpp"
  13
  14 //#include <QuartzCore/CALayer.h>
  15 // XXX: fix the minimum requirement
  16 extern NSString * const kCAFilterNearest;
  17
  18 #include <WebCore/WebCoreThread.h>
  19
  20 #import <WebKit/WebKitErrors.h>
  21 #import <WebKit/WebPreferences.h>
  22
  23 #include <WebKit/DOMCSSPrimitiveValue.h>
  24 #include <WebKit/DOMCSSStyleDeclaration.h>
  25 #include <WebKit/DOMDocument.h>
  26 #include <WebKit/DOMHTMLBodyElement.h>
  27 #include <WebKit/DOMRGBColor.h>
  28
  29 #include <dlfcn.h>
  30 #include <objc/runtime.h>
  31
  32 #define ForSaurik 0
  33 #define DefaultTimeout_ 120.0
  34
  35 #define ShowInternals 0
  36 #define LogBrowser 0
  37 #define LogMessages 0
  38
  39 #define lprintf(args...) fprintf(stderr, args)
  40
  41 JSValueRef (*$JSObjectCallAsFunction)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *);
  42
  43 // XXX: centralize these special class things to some file or mechanism?
  44 static Class $MFMailComposeViewController;
  45
  46 float CYScrollViewDecelerationRateNormal;
  47
  48 @interface WebFrame (Cydia)
  49 - (void) cydia$updateHeight;
  50 @end
  51
  52 @implementation WebFrame (Cydia)
  53
  54 - (NSString *) description {
  55     return [NSString stringWithFormat:@"<%s: %p, %@>", class_getName([self class]), self, [[[([self provisionalDataSource] ?: [self dataSource]) request] URL] absoluteString]];
  56 }
  57
  58 - (void) cydia$updateHeight {
  59     [[[self frameElement] style]
  60         setProperty:@"height"
  61         value:[NSString stringWithFormat:@"%dpx",
  62             [[[self DOMDocument] body] scrollHeight]]
  63         priority:nil];
  64 }
  65
  66 @end
  67
  68 /* Indirect Delegate {{{ */
  69 @implementation IndirectDelegate
  70
  71 - (id) delegate {
  72     return delegate_;
  73 }
  74
  75 - (void) setDelegate:(id)delegate {
  76     delegate_ = delegate;
  77 }
  78
  79 - (id) initWithDelegate:(id)delegate {
  80     delegate_ = delegate;
  81     return self;
  82 }
  83
  84 - (IMP) methodForSelector:(SEL)sel {
  85     if (IMP method = [super methodForSelector:sel])
  86         return method;
  87     fprintf(stderr, "methodForSelector:[%s] == NULL\n", sel_getName(sel));
  88     return NULL;
  89 }
  90
  91 - (BOOL) respondsToSelector:(SEL)sel {
  92     if ([super respondsToSelector:sel])
  93         return YES;
  94
  95     // XXX: WebThreadCreateNSInvocation returns nil
  96
  97 #if ShowInternals
  98     fprintf(stderr, "[%s]R?%s\n", class_getName(object_getClass(self)), sel_getName(sel));
  99 #endif
 100
 101     return delegate_ == nil ? NO : [delegate_ respondsToSelector:sel];
 102 }
 103
 104 - (NSMethodSignature *) methodSignatureForSelector:(SEL)sel {
 105     if (NSMethodSignature *method = [super methodSignatureForSelector:sel])
 106         return method;
 107
 108 #if ShowInternals
 109     fprintf(stderr, "[%s]S?%s\n", class_getName(object_getClass(self)), sel_getName(sel));
 110 #endif
 111
 112     if (delegate_ != nil)
 113         if (NSMethodSignature *sig = [delegate_ methodSignatureForSelector:sel])
 114             return sig;
 115
 116     // XXX: I fucking hate Apple so very very bad
 117     return [NSMethodSignature signatureWithObjCTypes:"v@:"];
 118 }
 119
 120 - (void) forwardInvocation:(NSInvocation *)inv {
 121     SEL sel = [inv selector];
 122     if (delegate_ != nil && [delegate_ respondsToSelector:sel])
 123         [inv invokeWithTarget:delegate_];
 124 }
 125
 126 @end
 127 /* }}} */
 128
 129 @implementation CyteWebViewController
 130
 131 #if ShowInternals
 132 #include "CyteKit/UCInternal.h"
 133 #endif
 134
 135 + (void) _initialize {
 136     [WebPreferences _setInitialDefaultTextEncodingToSystemEncoding];
 137
 138     void *js(NULL);
 139     if (js == NULL)
 140         js = dlopen("/System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore", RTLD_GLOBAL | RTLD_LAZY);
 141     if (js == NULL)
 142         js = dlopen("/System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore", RTLD_GLOBAL | RTLD_LAZY);
 143     if (js != NULL)
 144         $JSObjectCallAsFunction = reinterpret_cast<JSValueRef (*)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(js, "JSObjectCallAsFunction"));
 145
 146     dlopen("/System/Library/Frameworks/MessageUI.framework/MessageUI", RTLD_GLOBAL | RTLD_LAZY);
 147     $MFMailComposeViewController = objc_getClass("MFMailComposeViewController");
 148
 149     if (float *_UIScrollViewDecelerationRateNormal = reinterpret_cast<float *>(dlsym(RTLD_DEFAULT, "UIScrollViewDecelerationRateNormal")))
 150         CYScrollViewDecelerationRateNormal = *_UIScrollViewDecelerationRateNormal;
 151     else // XXX: this actually might be fast on some older systems: we should look into this
 152         CYScrollViewDecelerationRateNormal = 0.998;
 153 }
 154
 155 - (bool) retainsNetworkActivityIndicator {
 156     return true;
 157 }
 158
 159 - (void) releaseNetworkActivityIndicator {
 160     if ([loading_ count] != 0) {
 161         [loading_ removeAllObjects];
 162
 163         if ([self retainsNetworkActivityIndicator])
 164             [delegate_ releaseNetworkActivityIndicator];
 165     }
 166 }
 167
 168 - (void) dealloc {
 169 #if LogBrowser
 170     NSLog(@"[CyteWebViewController dealloc]");
 171 #endif
 172
 173     [self releaseNetworkActivityIndicator];
 174
 175     [super dealloc];
 176 }
 177
 178 - (NSString *) description {
 179     return [NSString stringWithFormat:@"<%s: %p, %@>", class_getName([self class]), self, [[request_ URL] absoluteString]];
 180 }
 181
 182 - (CyteWebView *) webView {
 183     return (CyteWebView *) [self view];
 184 }
 185
 186 - (NSURL *) URLWithURL:(NSURL *)url {
 187     return url;
 188 }
 189
 190 - (NSURLRequest *) requestWithURL:(NSURL *)url cachePolicy:(NSURLRequestCachePolicy)policy referrer:(NSString *)referrer {
 191     NSMutableURLRequest *request([NSMutableURLRequest
 192         requestWithURL:[self URLWithURL:url]
 193         cachePolicy:policy
 194         timeoutInterval:DefaultTimeout_
 195     ]);
 196
 197     [request setValue:referrer forHTTPHeaderField:@"Referer"];
 198
 199     return request;
 200 }
 201
 202 - (void) setRequest:(NSURLRequest *)request {
 203     _assert(request_ == nil);
 204     request_ = request;
 205 }
 206
 207 - (void) setURL:(NSURL *)url {
 208     [self setURL:url withReferrer:nil];
 209 }
 210
 211 - (void) setURL:(NSURL *)url withReferrer:(NSString *)referrer {
 212     [self setRequest:[self requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy referrer:referrer]];
 213 }
 214
 215 - (void) loadURL:(NSURL *)url cachePolicy:(NSURLRequestCachePolicy)policy {
 216     [self loadRequest:[self requestWithURL:url cachePolicy:policy referrer:nil]];
 217 }
 218
 219 - (void) loadURL:(NSURL *)url {
 220     [self loadURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy];
 221 }
 222
 223 - (void) loadRequest:(NSURLRequest *)request {
 224 #if LogBrowser
 225     NSLog(@"loadRequest:%@", request);
 226 #endif
 227
 228     error_ = false;
 229     ready_ = true;
 230
 231     WebThreadLocked lock;
 232     [[self webView] loadRequest:request];
 233 }
 234
 235 - (void) reloadURLWithCache:(BOOL)cache {
 236     if (request_ == nil)
 237         return;
 238
 239     NSMutableURLRequest *request([request_ mutableCopy]);
 240     [request setCachePolicy:(cache ? NSURLRequestUseProtocolCachePolicy : NSURLRequestReloadIgnoringLocalCacheData)];
 241
 242     request_ = request;
 243
 244     if (cache || [request_ HTTPBody] == nil && [request_ HTTPBodyStream] == nil)
 245         [self loadRequest:request_];
 246     else {
 247         UIAlertView *alert = [[[UIAlertView alloc]
 248             initWithTitle:UCLocalize("RESUBMIT_FORM")
 249             message:nil
 250             delegate:self
 251             cancelButtonTitle:UCLocalize("CANCEL")
 252             otherButtonTitles:
 253                 UCLocalize("SUBMIT"),
 254             nil
 255         ] autorelease];
 256
 257         [alert setContext:@"submit"];
 258         [alert show];
 259     }
 260 }
 261
 262 - (void) reloadData {
 263     [super reloadData];
 264
 265     if (ready_)
 266         [self dispatchEvent:@"CydiaReloadData"];
 267     else
 268         [self reloadURLWithCache:YES];
 269 }
 270
 271 - (void) setButtonImage:(NSString *)button withStyle:(NSString *)style toFunction:(id)function {
 272     custom_ = button;
 273     style_ = style;
 274     function_ = function;
 275
 276     [self performSelectorOnMainThread:@selector(applyRightButton) withObject:nil waitUntilDone:NO];
 277 }
 278
 279 - (void) setButtonTitle:(NSString *)button withStyle:(NSString *)style toFunction:(id)function {
 280     custom_ = button;
 281     style_ = style;
 282     function_ = function;
 283
 284     [self performSelectorOnMainThread:@selector(applyRightButton) withObject:nil waitUntilDone:NO];
 285 }
 286
 287 - (void) removeButton {
 288     custom_ = [NSNull null];
 289     [self performSelectorOnMainThread:@selector(applyRightButton) withObject:nil waitUntilDone:NO];
 290 }
 291
 292 - (void) scrollToBottomAnimated:(NSNumber *)animated {
 293     CGSize size([scroller_ contentSize]);
 294     CGPoint offset([scroller_ contentOffset]);
 295     CGRect frame([scroller_ frame]);
 296
 297     if (size.height - offset.y < frame.size.height + 20.f) {
 298         CGRect rect = {{0, size.height-1}, {size.width, 1}};
 299         [scroller_ scrollRectToVisible:rect animated:[animated boolValue]];
 300     }
 301 }
 302
 303 - (void) _setViewportWidth {
 304     [[[self webView] _documentView] setViewportSize:CGSizeMake(width_, UIWebViewGrowsAndShrinksToFitHeight) forDocumentTypes:0x10];
 305 }
 306
 307 - (void) setViewportWidth:(float)width {
 308     width_ = width != 0 ? width : [[self class] defaultWidth];
 309     [self _setViewportWidth];
 310 }
 311
 312 - (void) _setViewportWidthOnMainThread:(NSNumber *)width {
 313     [self setViewportWidth:[width floatValue]];
 314 }
 315
 316 - (void) setViewportWidthOnMainThread:(float)width {
 317     [self performSelectorOnMainThread:@selector(_setViewportWidthOnMainThread:) withObject:[NSNumber numberWithFloat:width] waitUntilDone:NO];
 318 }
 319
 320 - (void) webViewUpdateViewSettings:(UIWebView *)view {
 321     [self _setViewportWidth];
 322 }
 323
 324 - (void) mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
 325     [self dismissModalViewControllerAnimated:YES];
 326 }
 327
 328 - (void) _setupMail:(MFMailComposeViewController *)controller {
 329 }
 330
 331 - (void) _openMailToURL:(NSURL *)url {
 332     if ($MFMailComposeViewController != nil && [$MFMailComposeViewController canSendMail]) {
 333         MFMailComposeViewController *controller([[[$MFMailComposeViewController alloc] init] autorelease]);
 334         [controller setMailComposeDelegate:self];
 335
 336         [controller setMailToURL:url];
 337
 338         [self _setupMail:controller];
 339
 340         [self presentModalViewController:controller animated:YES];
 341         return;
 342     }
 343
 344     UIApplication *app([UIApplication sharedApplication]);
 345     if ([app respondsToSelector:@selector(openURL:asPanel:)])
 346         [app openURL:url asPanel:YES];
 347     else
 348         [app openURL:url];
 349 }
 350
 351 - (bool) _allowJavaScriptPanel {
 352     return true;
 353 }
 354
 355 - (bool) allowsNavigationAction {
 356     return allowsNavigationAction_;
 357 }
 358
 359 - (void) setAllowsNavigationAction:(bool)value {
 360     allowsNavigationAction_ = value;
 361 }
 362
 363 - (void) setAllowsNavigationActionByNumber:(NSNumber *)value {
 364     [self setAllowsNavigationAction:[value boolValue]];
 365 }
 366
 367 - (void) popViewControllerWithNumber:(NSNumber *)value {
 368     UINavigationController *navigation([self navigationController]);
 369     if ([navigation topViewController] == self)
 370         [navigation popViewControllerAnimated:[value boolValue]];
 371 }
 372
 373 - (void) _didFailWithError:(NSError *)error forFrame:(WebFrame *)frame {
 374     NSValue *object([NSValue valueWithNonretainedObject:frame]);
 375     if (![loading_ containsObject:object])
 376         return;
 377     [loading_ removeObject:object];
 378
 379     [self _didFinishLoading];
 380
 381     if ([[error domain] isEqualToString:NSURLErrorDomain] && [error code] == NSURLErrorCancelled)
 382         return;
 383
 384     if ([[error domain] isEqualToString:WebKitErrorDomain] && [error code] == WebKitErrorFrameLoadInterruptedByPolicyChange) {
 385         request_ = nil;
 386         return;
 387     }
 388
 389     if ([frame parentFrame] == nil) {
 390         [self loadURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@?%@",
 391             [[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"error" ofType:@"html"]] absoluteString],
 392             [[error localizedDescription] stringByAddingPercentEscapes]
 393         ]]];
 394
 395         error_ = true;
 396     }
 397 }
 398
 399 - (void) pushRequest:(NSURLRequest *)request forAction:(NSDictionary *)action asPop:(bool)pop {
 400     WebFrame *frame(nil);
 401     if (NSDictionary *WebActionElement = [action objectForKey:@"WebActionElementKey"])
 402         frame = [WebActionElement objectForKey:@"WebElementFrame"];
 403     if (frame == nil)
 404         frame = [[[[self webView] _documentView] webView] mainFrame];
 405
 406     WebDataSource *source([frame provisionalDataSource] ?: [frame dataSource]);
 407     NSString *referrer([request valueForHTTPHeaderField:@"Referer"] ?: [[[source request] URL] absoluteString]);
 408
 409     NSURL *url([request URL]);
 410
 411     // XXX: filter to internal usage?
 412     CyteViewController *page([delegate_ pageForURL:url forExternal:NO withReferrer:referrer]);
 413
 414     if (page == nil) {
 415         CyteWebViewController *browser([[[class_ alloc] init] autorelease]);
 416         [browser setRequest:request];
 417         page = browser;
 418     }
 419
 420     [page setDelegate:delegate_];
 421     [page setPageColor:color_];
 422
 423     if (!pop) {
 424         [[self navigationItem] setTitle:title_];
 425
 426         [[self navigationController] pushViewController:page animated:YES];
 427     } else {
 428         UINavigationController *navigation([[[UINavigationController alloc] initWithRootViewController:page] autorelease]);
 429
 430         [navigation setDelegate:delegate_];
 431
 432         [[page navigationItem] setLeftBarButtonItem:[[[UIBarButtonItem alloc]
 433             initWithTitle:UCLocalize("CLOSE")
 434             style:UIBarButtonItemStylePlain
 435             target:page
 436             action:@selector(close)
 437         ] autorelease]];
 438
 439         [[self navigationController] presentModalViewController:navigation animated:YES];
 440     }
 441 }
 442
 443 // CyteWebViewDelegate {{{
 444 - (void) webView:(WebView *)view addMessageToConsole:(NSDictionary *)message {
 445 #if LogMessages
 446     static RegEx irritating("(?"
 447         ":" "The page at .* displayed insecure content from .*\\."
 448         "|" "Unsafe JavaScript attempt to access frame with URL .* from frame with URL .*\\. Domains, protocols and ports must match\\."
 449     ")\\n");
 450
 451     if (NSString *data = [message objectForKey:@"message"])
 452         if (irritating(data))
 453             return;
 454
 455     NSLog(@"addMessageToConsole:%@", message);
 456 #endif
 457 }
 458
 459 - (void) webView:(WebView *)view decidePolicyForNavigationAction:(NSDictionary *)action request:(NSURLRequest *)request frame:(WebFrame *)frame decisionListener:(id<WebPolicyDecisionListener>)listener {
 460 #if LogBrowser
 461     NSLog(@"decidePolicyForNavigationAction:%@ request:%@ %@ frame:%@", action, request, [request allHTTPHeaderFields], frame);
 462 #endif
 463
 464     NSURL *url(request == nil ? nil : [request URL]);
 465     NSString *scheme([[url scheme] lowercaseString]);
 466     NSString *absolute([[url absoluteString] lowercaseString]);
 467
 468     if (
 469         [scheme isEqualToString:@"itms"] ||
 470         [scheme isEqualToString:@"itmss"] ||
 471         [scheme isEqualToString:@"itms-apps"] ||
 472         [scheme isEqualToString:@"itms-appss"] ||
 473         [absolute hasPrefix:@"http://itunes.apple.com/"] ||
 474         [absolute hasPrefix:@"https://itunes.apple.com/"] ||
 475     false) {
 476         appstore_ = url;
 477
 478         UIAlertView *alert = [[[UIAlertView alloc]
 479             initWithTitle:UCLocalize("APP_STORE_REDIRECT")
 480             message:nil
 481             delegate:self
 482             cancelButtonTitle:UCLocalize("CANCEL")
 483             otherButtonTitles:
 484                 UCLocalize("ALLOW"),
 485             nil
 486         ] autorelease];
 487
 488         [alert setContext:@"itmsappss"];
 489         [alert show];
 490
 491         [listener ignore];
 492         return;
 493     }
 494
 495     if ([frame parentFrame] == nil) {
 496         if (!error_) {
 497             if (request_ != nil && ![[request_ URL] isEqual:url] && ![self allowsNavigationAction]) {
 498                 if (url != nil)
 499                     [self pushRequest:request forAction:action asPop:NO];
 500                 [listener ignore];
 501             }
 502         }
 503     }
 504 }
 505
 506 - (void) webView:(WebView *)view didDecidePolicy:(CYWebPolicyDecision)decision forNavigationAction:(NSDictionary *)action request:(NSURLRequest *)request frame:(WebFrame *)frame {
 507 #if LogBrowser
 508     NSLog(@"didDecidePolicy:%u forNavigationAction:%@ request:%@ %@ frame:%@", decision, action, request, [request allHTTPHeaderFields], frame);
 509 #endif
 510
 511     if ([frame parentFrame] == nil) {
 512         switch (decision) {
 513             case CYWebPolicyDecisionIgnore:
 514                 if ([[request_ URL] isEqual:[request URL]])
 515                     request_ = nil;
 516             break;
 517
 518             case CYWebPolicyDecisionUse:
 519                 if (!error_)
 520                     request_ = request;
 521             break;
 522
 523             default:
 524             break;
 525         }
 526     }
 527 }
 528
 529 - (void) webView:(WebView *)view decidePolicyForNewWindowAction:(NSDictionary *)action request:(NSURLRequest *)request newFrameName:(NSString *)name decisionListener:(id<WebPolicyDecisionListener>)listener {
 530 #if LogBrowser
 531     NSLog(@"decidePolicyForNewWindowAction:%@ request:%@ %@ newFrameName:%@", action, request, [request allHTTPHeaderFields], name);
 532 #endif
 533
 534     NSURL *url([request URL]);
 535     if (url == nil)
 536         return;
 537
 538     if ([name isEqualToString:@"_open"])
 539         [delegate_ openURL:url];
 540     else {
 541         NSString *scheme([[url scheme] lowercaseString]);
 542         if ([scheme isEqualToString:@"mailto"])
 543             [self _openMailToURL:url];
 544         else
 545             [self pushRequest:request forAction:action asPop:[name isEqualToString:@"_popup"]];
 546     }
 547
 548     [listener ignore];
 549 }
 550
 551 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame {
 552 #if LogBrowser
 553     NSLog(@"didClearWindowObject:%@ forFrame:%@", window, frame);
 554 #endif
 555 }
 556
 557 - (void) webView:(WebView *)view didCommitLoadForFrame:(WebFrame *)frame {
 558 #if LogBrowser
 559     NSLog(@"didCommitLoadForFrame:%@", frame);
 560 #endif
 561
 562     if ([frame parentFrame] == nil) {
 563         loaded_ = true;
 564     }
 565 }
 566
 567 - (void) webView:(WebView *)view didFailLoadWithError:(NSError *)error forFrame:(WebFrame *)frame {
 568 #if LogBrowser
 569     NSLog(@"didFailLoadWithError:%@ forFrame:%@", error, frame);
 570 #endif
 571
 572     [self _didFailWithError:error forFrame:frame];
 573 }
 574
 575 - (void) webView:(WebView *)view didFailProvisionalLoadWithError:(NSError *)error forFrame:(WebFrame *)frame {
 576 #if LogBrowser
 577     NSLog(@"didFailProvisionalLoadWithError:%@ forFrame:%@", error, frame);
 578 #endif
 579
 580     [self _didFailWithError:error forFrame:frame];
 581 }
 582
 583 - (void) webView:(WebView *)view didFinishLoadForFrame:(WebFrame *)frame {
 584     NSValue *object([NSValue valueWithNonretainedObject:frame]);
 585     if (![loading_ containsObject:object])
 586         return;
 587     [loading_ removeObject:object];
 588
 589     if ([frame parentFrame] == nil) {
 590         if (DOMDocument *document = [frame DOMDocument])
 591             if (DOMNodeList *bodies = [document getElementsByTagName:@"body"])
 592                 for (DOMHTMLBodyElement *body in (id) bodies) {
 593                     DOMCSSStyleDeclaration *style([document getComputedStyle:body pseudoElement:nil]);
 594
 595                     UIColor *uic(nil);
 596
 597                     if (DOMCSSPrimitiveValue *color = static_cast<DOMCSSPrimitiveValue *>([style getPropertyCSSValue:@"background-color"])) {
 598                         if ([color primitiveType] == DOM_CSS_RGBCOLOR) {
 599                             DOMRGBColor *rgb([color getRGBColorValue]);
 600
 601                             float red([[rgb red] getFloatValue:DOM_CSS_NUMBER]);
 602                             float green([[rgb green] getFloatValue:DOM_CSS_NUMBER]);
 603                             float blue([[rgb blue] getFloatValue:DOM_CSS_NUMBER]);
 604                             float alpha([[rgb alpha] getFloatValue:DOM_CSS_NUMBER]);
 605
 606                             if (alpha == 1)
 607                                 uic = [UIColor
 608                                     colorWithRed:(red / 255)
 609                                     green:(green / 255)
 610                                     blue:(blue / 255)
 611                                     alpha:alpha
 612                                 ];
 613                         }
 614                     }
 615
 616                     [super setPageColor:uic];
 617                     [scroller_ setBackgroundColor:color_];
 618                     break;
 619                 }
 620     }
 621
 622     [self _didFinishLoading];
 623 }
 624
 625 - (void) webView:(WebView *)view didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame {
 626     if ([frame parentFrame] != nil)
 627         return;
 628
 629     title_ = title;
 630
 631     [[self navigationItem] setTitle:title_];
 632 }
 633
 634 - (void) webView:(WebView *)view didStartProvisionalLoadForFrame:(WebFrame *)frame {
 635 #if LogBrowser
 636     NSLog(@"didStartProvisionalLoadForFrame:%@", frame);
 637 #endif
 638
 639     [loading_ addObject:[NSValue valueWithNonretainedObject:frame]];
 640
 641     if ([frame parentFrame] == nil) {
 642         title_ = nil;
 643         custom_ = nil;
 644         style_ = nil;
 645         function_ = nil;
 646
 647         [registered_ removeAllObjects];
 648         timer_ = nil;
 649
 650         allowsNavigationAction_ = true;
 651
 652         [self setHidesNavigationBar:NO];
 653         [self setScrollAlwaysBounceVertical:true];
 654         [self setScrollIndicatorStyle:UIScrollViewIndicatorStyleDefault];
 655
 656         // XXX: do we still need to do this?
 657         [[self navigationItem] setTitle:nil];
 658     }
 659
 660     [self _didStartLoading];
 661 }
 662
 663 - (void) webView:(WebView *)view resource:(id)identifier didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge fromDataSource:(WebDataSource *)source {
 664     challenge_ = [challenge retain];
 665
 666     NSURLProtectionSpace *space([challenge protectionSpace]);
 667     NSString *realm([space realm]);
 668     if (realm == nil)
 669         realm = @"";
 670
 671     UIAlertView *alert = [[[UIAlertView alloc]
 672         initWithTitle:realm
 673         message:nil
 674         delegate:self
 675         cancelButtonTitle:UCLocalize("CANCEL")
 676         otherButtonTitles:UCLocalize("LOGIN"), nil
 677     ] autorelease];
 678
 679     [alert setContext:@"challenge"];
 680     [alert setNumberOfRows:1];
 681
 682     [alert addTextFieldWithValue:@"" label:UCLocalize("USERNAME")];
 683     [alert addTextFieldWithValue:@"" label:UCLocalize("PASSWORD")];
 684
 685     UITextField *username([alert textFieldAtIndex:0]); {
 686         UITextInputTraits *traits([username textInputTraits]);
 687         [traits setAutocapitalizationType:UITextAutocapitalizationTypeNone];
 688         [traits setAutocorrectionType:UITextAutocorrectionTypeNo];
 689         [traits setKeyboardType:UIKeyboardTypeASCIICapable];
 690         [traits setReturnKeyType:UIReturnKeyNext];
 691     }
 692
 693     UITextField *password([alert textFieldAtIndex:1]); {
 694         UITextInputTraits *traits([password textInputTraits]);
 695         [traits setAutocapitalizationType:UITextAutocapitalizationTypeNone];
 696         [traits setAutocorrectionType:UITextAutocorrectionTypeNo];
 697         [traits setKeyboardType:UIKeyboardTypeASCIICapable];
 698         // XXX: UIReturnKeyDone
 699         [traits setReturnKeyType:UIReturnKeyNext];
 700         [traits setSecureTextEntry:YES];
 701     }
 702
 703     [alert show];
 704 }
 705
 706 - (NSURLRequest *) webView:(WebView *)view resource:(id)identifier willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response fromDataSource:(WebDataSource *)source {
 707 #if LogBrowser
 708     NSLog(@"resource:%@ willSendRequest:%@ redirectResponse:%@ fromDataSource:%@", identifier, request, response, source);
 709 #endif
 710
 711     return request;
 712 }
 713
 714 - (NSURLRequest *) webThreadWebView:(WebView *)view resource:(id)identifier willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response fromDataSource:(WebDataSource *)source {
 715 #if LogBrowser
 716     NSLog(@"resource:%@ willSendRequest:%@ redirectResponse:%@ fromDataSource:%@", identifier, request, response, source);
 717 #endif
 718
 719     return request;
 720 }
 721
 722 - (bool) webView:(WebView *)view shouldRunJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
 723     return [self _allowJavaScriptPanel];
 724 }
 725
 726 - (bool) webView:(WebView *)view shouldRunJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
 727     return [self _allowJavaScriptPanel];
 728 }
 729
 730 - (bool) webView:(WebView *)view shouldRunJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)text initiatedByFrame:(WebFrame *)frame {
 731     return [self _allowJavaScriptPanel];
 732 }
 733
 734 - (void) webViewClose:(WebView *)view {
 735     [self close];
 736 }
 737 // }}}
 738
 739 - (void) close {
 740     [[[self navigationController] parentOrPresentingViewController] dismissModalViewControllerAnimated:YES];
 741 }
 742
 743 - (void) alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)button {
 744     NSString *context([alert context]);
 745
 746     if ([context isEqualToString:@"sensitive"]) {
 747         switch (button) {
 748             case 1:
 749                 sensitive_ = [NSNumber numberWithBool:YES];
 750             break;
 751
 752             case 2:
 753                 sensitive_ = [NSNumber numberWithBool:NO];
 754             break;
 755         }
 756
 757         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 758     } else if ([context isEqualToString:@"challenge"]) {
 759         id<NSURLAuthenticationChallengeSender> sender([challenge_ sender]);
 760
 761         if (button == [alert cancelButtonIndex])
 762             [sender cancelAuthenticationChallenge:challenge_];
 763         else if (button == [alert firstOtherButtonIndex]) {
 764             NSString *username([[alert textFieldAtIndex:0] text]);
 765             NSString *password([[alert textFieldAtIndex:1] text]);
 766
 767             NSURLCredential *credential([NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistenceForSession]);
 768
 769             [sender useCredential:credential forAuthenticationChallenge:challenge_];
 770         }
 771
 772         challenge_ = nil;
 773
 774         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 775     } else if ([context isEqualToString:@"itmsappss"]) {
 776         if (button == [alert cancelButtonIndex]) {
 777         } else if (button == [alert firstOtherButtonIndex]) {
 778             [delegate_ openURL:appstore_];
 779         }
 780
 781         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 782     } else if ([context isEqualToString:@"submit"]) {
 783         if (button == [alert cancelButtonIndex]) {
 784         } else if (button == [alert firstOtherButtonIndex]) {
 785             if (request_ != nil) {
 786                 WebThreadLocked lock;
 787                 [[self webView] loadRequest:request_];
 788             }
 789         }
 790
 791         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 792     }
 793 }
 794
 795 - (UIBarButtonItemStyle) rightButtonStyle {
 796     if (style_ == nil) normal:
 797         return UIBarButtonItemStylePlain;
 798     else if ([style_ isEqualToString:@"Normal"])
 799         return UIBarButtonItemStylePlain;
 800     else if ([style_ isEqualToString:@"Highlighted"])
 801         return UIBarButtonItemStyleDone;
 802     else goto normal;
 803 }
 804
 805 - (UIBarButtonItem *) customButton {
 806     if (custom_ == nil)
 807         return nil;
 808     else if ((/*clang:*/id) custom_ == [NSNull null])
 809         return (UIBarButtonItem *) [NSNull null];
 810
 811     return [[[UIBarButtonItem alloc]
 812         initWithTitle:static_cast<NSString *>(custom_.operator NSObject *())
 813         style:[self rightButtonStyle]
 814         target:self
 815         action:@selector(customButtonClicked)
 816     ] autorelease];
 817 }
 818
 819 - (UIBarButtonItem *) leftButton {
 820     UINavigationItem *item([self navigationItem]);
 821     if ([item backBarButtonItem] != nil && ![item hidesBackButton])
 822         return nil;
 823
 824     if (UINavigationController *navigation = [self navigationController])
 825         if ([[navigation parentOrPresentingViewController] modalViewController] == navigation)
 826             return [[[UIBarButtonItem alloc]
 827                 initWithTitle:UCLocalize("CLOSE")
 828                 style:UIBarButtonItemStylePlain
 829                 target:self
 830                 action:@selector(close)
 831             ] autorelease];
 832
 833     return nil;
 834 }
 835
 836 - (void) applyLeftButton {
 837     [[self navigationItem] setLeftBarButtonItem:[self leftButton]];
 838 }
 839
 840 - (UIBarButtonItem *) rightButton {
 841     return reloaditem_;
 842 }
 843
 844 - (void) applyLoadingTitle {
 845     [[self navigationItem] setTitle:UCLocalize("LOADING")];
 846 }
 847
 848 - (void) layoutRightButton {
 849     [[loadingitem_ view] addSubview:indicator_];
 850     [[loadingitem_ view] bringSubviewToFront:indicator_];
 851 }
 852
 853 - (void) applyRightButton {
 854     if ([self isLoading]) {
 855         [[self navigationItem] setRightBarButtonItem:loadingitem_ animated:YES];
 856         [self performSelector:@selector(layoutRightButton) withObject:nil afterDelay:0];
 857
 858         [indicator_ startAnimating];
 859         [self applyLoadingTitle];
 860     } else {
 861         [indicator_ stopAnimating];
 862
 863         UIBarButtonItem *button([self customButton]);
 864         if (button == nil)
 865             button = [self rightButton];
 866         else if (button == (UIBarButtonItem *) [NSNull null])
 867             button = nil;
 868
 869         [[self navigationItem] setRightBarButtonItem:button animated:YES];
 870     }
 871 }
 872
 873 - (void) didStartLoading {
 874     // Overridden in subclasses.
 875 }
 876
 877 - (void) _didStartLoading {
 878     [self applyRightButton];
 879
 880     if ([loading_ count] != 1)
 881         return;
 882
 883     if ([self retainsNetworkActivityIndicator])
 884         [delegate_ retainNetworkActivityIndicator];
 885
 886     [self didStartLoading];
 887 }
 888
 889 - (void) didFinishLoading {
 890     // Overridden in subclasses.
 891 }
 892
 893 - (void) _didFinishLoading {
 894     if ([loading_ count] != 0)
 895         return;
 896
 897     [self applyRightButton];
 898     [[self navigationItem] setTitle:title_];
 899
 900     if ([self retainsNetworkActivityIndicator])
 901         [delegate_ releaseNetworkActivityIndicator];
 902
 903     [self didFinishLoading];
 904 }
 905
 906 - (bool) isLoading {
 907     return [loading_ count] != 0;
 908 }
 909
 910 - (id) initWithWidth:(float)width ofClass:(Class)_class {
 911     if ((self = [super init]) != nil) {
 912         width_ = width;
 913         class_ = _class;
 914
 915         [super setPageColor:nil];
 916
 917         allowsNavigationAction_ = true;
 918
 919         loading_ = [NSMutableSet setWithCapacity:5];
 920         registered_ = [NSMutableSet setWithCapacity:5];
 921         indirect_ = [[[IndirectDelegate alloc] initWithDelegate:self] autorelease];
 922
 923         reloaditem_ = [[[UIBarButtonItem alloc]
 924             initWithTitle:UCLocalize("RELOAD")
 925             style:[self rightButtonStyle]
 926             target:self
 927             action:@selector(reloadButtonClicked)
 928         ] autorelease];
 929
 930         loadingitem_ = [[[UIBarButtonItem alloc]
 931             initWithTitle:(kCFCoreFoundationVersionNumber >= 800 ? @"       " : @" ")
 932             style:UIBarButtonItemStylePlain
 933             target:self
 934             action:@selector(reloadButtonClicked)
 935         ] autorelease];
 936
 937         UIActivityIndicatorViewStyle style;
 938         float left;
 939         if (kCFCoreFoundationVersionNumber >= 800) {
 940             style = UIActivityIndicatorViewStyleGray;
 941             left = 7;
 942         } else {
 943             style = UIActivityIndicatorViewStyleWhite;
 944             left = 15;
 945         }
 946
 947         indicator_ = [[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:style] autorelease];
 948         [indicator_ setFrame:CGRectMake(left, 5, [indicator_ frame].size.width, [indicator_ frame].size.height)];
 949         [indicator_ setAutoresizingMask:UIViewAutoresizingFlexibleLeftMargin];
 950
 951         [self applyLeftButton];
 952         [self applyRightButton];
 953     } return self;
 954 }
 955
 956 - (NSString *) applicationNameForUserAgent {
 957     return nil;
 958 }
 959
 960 - (void) loadView {
 961     CGRect bounds([[UIScreen mainScreen] applicationFrame]);
 962
 963     webview_ = [[[CyteWebView alloc] initWithFrame:bounds] autorelease];
 964     [webview_ setDelegate:self];
 965     [self setView:webview_];
 966
 967     if ([webview_ respondsToSelector:@selector(setDataDetectorTypes:)])
 968         [webview_ setDataDetectorTypes:UIDataDetectorTypeAutomatic];
 969     else
 970         [webview_ setDetectsPhoneNumbers:NO];
 971
 972     [webview_ setScalesPageToFit:YES];
 973
 974     UIWebDocumentView *document([webview_ _documentView]);
 975
 976     // XXX: I think this improves scrolling; the hardcoded-ness sucks
 977     [document setTileSize:CGSizeMake(320, 500)];
 978
 979     WebView *webview([document webView]);
 980     WebPreferences *preferences([webview preferences]);
 981
 982     // XXX: I have no clue if I actually /want/ this modification
 983     if ([webview respondsToSelector:@selector(_setLayoutInterval:)])
 984         [webview _setLayoutInterval:0];
 985     else if ([preferences respondsToSelector:@selector(_setLayoutInterval:)])
 986         [preferences _setLayoutInterval:0];
 987
 988     [preferences setCacheModel:WebCacheModelDocumentBrowser];
 989     [preferences setJavaScriptCanOpenWindowsAutomatically:NO];
 990
 991     if ([preferences respondsToSelector:@selector(setOfflineWebApplicationCacheEnabled:)])
 992         [preferences setOfflineWebApplicationCacheEnabled:YES];
 993
 994     if (NSString *agent = [self applicationNameForUserAgent])
 995         [webview setApplicationNameForUserAgent:agent];
 996
 997     if ([webview respondsToSelector:@selector(setShouldUpdateWhileOffscreen:)])
 998         [webview setShouldUpdateWhileOffscreen:NO];
 999
1000 #if LogMessages
1001     if ([document respondsToSelector:@selector(setAllowsMessaging:)])
1002         [document setAllowsMessaging:YES];
1003     if ([webview respondsToSelector:@selector(_setAllowsMessaging:)])
1004         [webview _setAllowsMessaging:YES];
1005 #endif
1006
1007     if ([webview_ respondsToSelector:@selector(_scrollView)]) {
1008         scroller_ = [webview_ _scrollView];
1009
1010         [scroller_ setDirectionalLockEnabled:YES];
1011         [scroller_ setDecelerationRate:CYScrollViewDecelerationRateNormal];
1012         [scroller_ setDelaysContentTouches:NO];
1013
1014         [scroller_ setCanCancelContentTouches:YES];
1015     } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
1016         UIScroller *scroller([webview_ _scroller]);
1017         scroller_ = (UIScrollView *) scroller;
1018
1019         [scroller setDirectionalScrolling:YES];
1020         // XXX: we might be better off /not/ setting this on older systems
1021         [scroller setScrollDecelerationFactor:CYScrollViewDecelerationRateNormal]; /* 0.989324 */
1022         [scroller setScrollHysteresis:0]; /* 8 */
1023
1024         [scroller setThumbDetectionEnabled:NO];
1025
1026         // use NO with UIApplicationUseLegacyEvents(YES)
1027         [scroller setEventMode:YES];
1028
1029         // XXX: this is handled by setBounces, right?
1030         //[scroller setAllowsRubberBanding:YES];
1031     }
1032
1033     [webview_ setOpaque:NO];
1034     [webview_ setBackgroundColor:nil];
1035
1036     [scroller_ setFixedBackgroundPattern:YES];
1037     [scroller_ setBackgroundColor:color_];
1038     [scroller_ setClipsSubviews:YES];
1039
1040     [scroller_ setBounces:YES];
1041     [scroller_ setScrollingEnabled:YES];
1042     [scroller_ setShowBackgroundShadow:NO];
1043
1044     [self setViewportWidth:width_];
1045
1046     if ([[UIColor groupTableViewBackgroundColor] isEqual:[UIColor clearColor]]) {
1047         UITableView *table([[[UITableView alloc] initWithFrame:[webview_ bounds] style:UITableViewStyleGrouped] autorelease]);
1048         [table setScrollsToTop:NO];
1049         [webview_ insertSubview:table atIndex:0];
1050         [table setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
1051     }
1052
1053     [webview_ setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
1054
1055     ready_ = false;
1056 }
1057
1058 - (void) releaseSubviews {
1059     webview_ = nil;
1060     scroller_ = nil;
1061
1062     [self releaseNetworkActivityIndicator];
1063
1064     [super releaseSubviews];
1065 }
1066
1067 - (id) initWithWidth:(float)width {
1068     return [self initWithWidth:width ofClass:[self class]];
1069 }
1070
1071 - (id) init {
1072     return [self initWithWidth:0];
1073 }
1074
1075 - (id) initWithURL:(NSURL *)url {
1076     if ((self = [self init]) != nil) {
1077         [self setURL:url];
1078     } return self;
1079 }
1080
1081 - (id) initWithRequest:(NSURLRequest *)request {
1082     if ((self = [self init]) != nil) {
1083         [self setRequest:request];
1084     } return self;
1085 }
1086
1087 + (void) _lockJavaScript:(WebPreferences *)preferences {
1088     WebThreadLocked lock;
1089     [preferences setJavaScriptCanOpenWindowsAutomatically:NO];
1090 }
1091
1092 - (void) callFunction:(WebScriptObject *)function {
1093     WebThreadLocked lock;
1094
1095     WebView *webview([[[self webView] _documentView] webView]);
1096     WebPreferences *preferences([webview preferences]);
1097
1098     [preferences setJavaScriptCanOpenWindowsAutomatically:YES];
1099     if ([webview respondsToSelector:@selector(_preferencesChanged:)])
1100         [webview _preferencesChanged:preferences];
1101     else
1102         [webview _preferencesChangedNotification:[NSNotification notificationWithName:@"" object:preferences]];
1103
1104     WebFrame *frame([webview mainFrame]);
1105     JSGlobalContextRef context([frame globalContext]);
1106
1107     JSObjectRef object([function JSObject]);
1108     if ($JSObjectCallAsFunction != NULL)
1109         ($JSObjectCallAsFunction)(context, object, NULL, 0, NULL, NULL);
1110
1111     // XXX: the JavaScript code submits a form, which seems to happen asynchronously
1112     NSObject *target([CyteWebViewController class]);
1113     [NSObject cancelPreviousPerformRequestsWithTarget:target selector:@selector(_lockJavaScript:) object:preferences];
1114     [target performSelector:@selector(_lockJavaScript:) withObject:preferences afterDelay:1];
1115 }
1116
1117 - (void) reloadButtonClicked {
1118     [self reloadURLWithCache:NO];
1119 }
1120
1121 - (void) _customButtonClicked {
1122     [self reloadButtonClicked];
1123 }
1124
1125 - (void) customButtonClicked {
1126 #if !AlwaysReload
1127     if (function_ != nil)
1128         [self callFunction:function_];
1129     else
1130 #endif
1131     [self _customButtonClicked];
1132 }
1133
1134 + (float) defaultWidth {
1135     return 980;
1136 }
1137
1138 - (void) setNavigationBarStyle:(NSString *)name {
1139     UIBarStyle style;
1140     if ([name isEqualToString:@"Black"])
1141         style = UIBarStyleBlack;
1142     else
1143         style = UIBarStyleDefault;
1144
1145     [[[self navigationController] navigationBar] setBarStyle:style];
1146 }
1147
1148 - (void) setNavigationBarTintColor:(UIColor *)color {
1149     [[[self navigationController] navigationBar] setTintColor:color];
1150 }
1151
1152 - (void) setBadgeValue:(id)value {
1153     [[[self navigationController] tabBarItem] setBadgeValue:value];
1154 }
1155
1156 - (void) setHidesBackButton:(bool)value {
1157     [[self navigationItem] setHidesBackButton:value];
1158     [self applyLeftButton];
1159 }
1160
1161 - (void) setHidesBackButtonByNumber:(NSNumber *)value {
1162     [self setHidesBackButton:[value boolValue]];
1163 }
1164
1165 - (void) dispatchEvent:(NSString *)event {
1166     [[self webView] dispatchEvent:event];
1167 }
1168
1169 - (bool) hidesNavigationBar {
1170     return hidesNavigationBar_;
1171 }
1172
1173 - (void) _setHidesNavigationBar:(bool)value animated:(bool)animated {
1174     if (visible_)
1175         [[self navigationController] setNavigationBarHidden:(value && [self hidesNavigationBar]) animated:animated];
1176 }
1177
1178 - (void) setHidesNavigationBar:(bool)value {
1179     if (hidesNavigationBar_ != value) {
1180         hidesNavigationBar_ = value;
1181         [self _setHidesNavigationBar:YES animated:YES];
1182     }
1183 }
1184
1185 - (void) setHidesNavigationBarByNumber:(NSNumber *)value {
1186     [self setHidesNavigationBar:[value boolValue]];
1187 }
1188
1189 - (void) setScrollAlwaysBounceVertical:(bool)value {
1190     if ([webview_ respondsToSelector:@selector(_scrollView)]) {
1191         UIScrollView *scroller([webview_ _scrollView]);
1192         [scroller setAlwaysBounceVertical:value];
1193     } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
1194         //UIScroller *scroller([webview_ _scroller]);
1195         // XXX: I am sad here.
1196     } else return;
1197 }
1198
1199 - (void) setScrollAlwaysBounceVerticalNumber:(NSNumber *)value {
1200     [self setScrollAlwaysBounceVertical:[value boolValue]];
1201 }
1202
1203 - (void) setScrollIndicatorStyle:(UIScrollViewIndicatorStyle)style {
1204     if ([webview_ respondsToSelector:@selector(_scrollView)]) {
1205         UIScrollView *scroller([webview_ _scrollView]);
1206         [scroller setIndicatorStyle:style];
1207     } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
1208         UIScroller *scroller([webview_ _scroller]);
1209         [scroller setScrollerIndicatorStyle:style];
1210     } else return;
1211 }
1212
1213 - (void) setScrollIndicatorStyleWithName:(NSString *)style {
1214     UIScrollViewIndicatorStyle value;
1215
1216     if (false);
1217     else if ([style isEqualToString:@"default"])
1218         value = UIScrollViewIndicatorStyleDefault;
1219     else if ([style isEqualToString:@"black"])
1220         value = UIScrollViewIndicatorStyleBlack;
1221     else if ([style isEqualToString:@"white"])
1222         value = UIScrollViewIndicatorStyleWhite;
1223     else return;
1224
1225     [self setScrollIndicatorStyle:value];
1226 }
1227
1228 - (void) viewWillAppear:(BOOL)animated {
1229     visible_ = true;
1230
1231     if ([self hidesNavigationBar])
1232         [self _setHidesNavigationBar:YES animated:animated];
1233
1234     // XXX: why isn't this evern called automatically?
1235     [[self webView] setNeedsLayout];
1236
1237     [self dispatchEvent:@"CydiaViewWillAppear"];
1238     [super viewWillAppear:animated];
1239 }
1240
1241 - (void) viewDidAppear:(BOOL)animated {
1242     [super viewDidAppear:animated];
1243     [self dispatchEvent:@"CydiaViewDidAppear"];
1244 }
1245
1246 - (void) viewWillDisappear:(BOOL)animated {
1247     [self dispatchEvent:@"CydiaViewWillDisappear"];
1248     [super viewWillDisappear:animated];
1249
1250     if ([self hidesNavigationBar])
1251         [self _setHidesNavigationBar:NO animated:animated];
1252
1253     visible_ = false;
1254 }
1255
1256 - (void) viewDidDisappear:(BOOL)animated {
1257     [super viewDidDisappear:animated];
1258     [self dispatchEvent:@"CydiaViewDidDisappear"];
1259 }
1260
1261 - (void) updateHeights:(NSTimer *)timer {
1262     for (WebFrame *frame in (id) registered_)
1263         [frame cydia$updateHeight];
1264 }
1265
1266 - (void) registerFrame:(WebFrame *)frame {
1267     [registered_ addObject:frame];
1268
1269     if (timer_ == nil)
1270         timer_ = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(updateHeights:) userInfo:nil repeats:YES];
1271 }
1272
1273 @end