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/PerlCompatibleRegEx.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(self->isa), 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(self->isa), 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 Pcre 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 - (bool) webView:(WebView *)view shouldRunJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
 715     return [self _allowJavaScriptPanel];
 716 }
 717
 718 - (bool) webView:(WebView *)view shouldRunJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
 719     return [self _allowJavaScriptPanel];
 720 }
 721
 722 - (bool) webView:(WebView *)view shouldRunJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)text initiatedByFrame:(WebFrame *)frame {
 723     return [self _allowJavaScriptPanel];
 724 }
 725
 726 - (void) webViewClose:(WebView *)view {
 727     [self close];
 728 }
 729 // }}}
 730
 731 - (void) close {
 732     [[[self navigationController] parentOrPresentingViewController] dismissModalViewControllerAnimated:YES];
 733 }
 734
 735 - (void) alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)button {
 736     NSString *context([alert context]);
 737
 738     if ([context isEqualToString:@"sensitive"]) {
 739         switch (button) {
 740             case 1:
 741                 sensitive_ = [NSNumber numberWithBool:YES];
 742             break;
 743
 744             case 2:
 745                 sensitive_ = [NSNumber numberWithBool:NO];
 746             break;
 747         }
 748
 749         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 750     } else if ([context isEqualToString:@"challenge"]) {
 751         id<NSURLAuthenticationChallengeSender> sender([challenge_ sender]);
 752
 753         if (button == [alert cancelButtonIndex])
 754             [sender cancelAuthenticationChallenge:challenge_];
 755         else if (button == [alert firstOtherButtonIndex]) {
 756             NSString *username([[alert textFieldAtIndex:0] text]);
 757             NSString *password([[alert textFieldAtIndex:1] text]);
 758
 759             NSURLCredential *credential([NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistenceForSession]);
 760
 761             [sender useCredential:credential forAuthenticationChallenge:challenge_];
 762         }
 763
 764         challenge_ = nil;
 765
 766         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 767     } else if ([context isEqualToString:@"itmsappss"]) {
 768         if (button == [alert cancelButtonIndex]) {
 769         } else if (button == [alert firstOtherButtonIndex]) {
 770             [delegate_ openURL:appstore_];
 771         }
 772
 773         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 774     } else if ([context isEqualToString:@"submit"]) {
 775         if (button == [alert cancelButtonIndex]) {
 776         } else if (button == [alert firstOtherButtonIndex]) {
 777             if (request_ != nil) {
 778                 WebThreadLocked lock;
 779                 [[self webView] loadRequest:request_];
 780             }
 781         }
 782
 783         [alert dismissWithClickedButtonIndex:-1 animated:YES];
 784     }
 785 }
 786
 787 - (UIBarButtonItemStyle) rightButtonStyle {
 788     if (style_ == nil) normal:
 789         return UIBarButtonItemStylePlain;
 790     else if ([style_ isEqualToString:@"Normal"])
 791         return UIBarButtonItemStylePlain;
 792     else if ([style_ isEqualToString:@"Highlighted"])
 793         return UIBarButtonItemStyleDone;
 794     else goto normal;
 795 }
 796
 797 - (UIBarButtonItem *) customButton {
 798     if (custom_ == nil)
 799         return nil;
 800     else if ((/*clang:*/id) custom_ == [NSNull null])
 801         return (UIBarButtonItem *) [NSNull null];
 802
 803     return [[[UIBarButtonItem alloc]
 804         initWithTitle:static_cast<NSString *>(custom_.operator NSObject *())
 805         style:[self rightButtonStyle]
 806         target:self
 807         action:@selector(customButtonClicked)
 808     ] autorelease];
 809 }
 810
 811 - (UIBarButtonItem *) leftButton {
 812     UINavigationItem *item([self navigationItem]);
 813     if ([item backBarButtonItem] != nil && ![item hidesBackButton])
 814         return nil;
 815
 816     if (UINavigationController *navigation = [self navigationController])
 817         if ([[navigation parentOrPresentingViewController] modalViewController] == navigation)
 818             return [[[UIBarButtonItem alloc]
 819                 initWithTitle:UCLocalize("CLOSE")
 820                 style:UIBarButtonItemStylePlain
 821                 target:self
 822                 action:@selector(close)
 823             ] autorelease];
 824
 825     return nil;
 826 }
 827
 828 - (void) applyLeftButton {
 829     [[self navigationItem] setLeftBarButtonItem:[self leftButton]];
 830 }
 831
 832 - (UIBarButtonItem *) rightButton {
 833     return reloaditem_;
 834 }
 835
 836 - (void) applyLoadingTitle {
 837     [[self navigationItem] setTitle:UCLocalize("LOADING")];
 838 }
 839
 840 - (void) layoutRightButton {
 841     [[loadingitem_ view] addSubview:indicator_];
 842     [[loadingitem_ view] bringSubviewToFront:indicator_];
 843 }
 844
 845 - (void) applyRightButton {
 846     if ([self isLoading]) {
 847         [[self navigationItem] setRightBarButtonItem:loadingitem_ animated:YES];
 848         [self performSelector:@selector(layoutRightButton) withObject:nil afterDelay:0];
 849
 850         [indicator_ startAnimating];
 851         [self applyLoadingTitle];
 852     } else {
 853         [indicator_ stopAnimating];
 854
 855         UIBarButtonItem *button([self customButton]);
 856         if (button == nil)
 857             button = [self rightButton];
 858         else if (button == (UIBarButtonItem *) [NSNull null])
 859             button = nil;
 860
 861         [[self navigationItem] setRightBarButtonItem:button animated:YES];
 862     }
 863 }
 864
 865 - (void) didStartLoading {
 866     // Overridden in subclasses.
 867 }
 868
 869 - (void) _didStartLoading {
 870     [self applyRightButton];
 871
 872     if ([loading_ count] != 1)
 873         return;
 874
 875     if ([self retainsNetworkActivityIndicator])
 876         [delegate_ retainNetworkActivityIndicator];
 877
 878     [self didStartLoading];
 879 }
 880
 881 - (void) didFinishLoading {
 882     // Overridden in subclasses.
 883 }
 884
 885 - (void) _didFinishLoading {
 886     if ([loading_ count] != 0)
 887         return;
 888
 889     [self applyRightButton];
 890     [[self navigationItem] setTitle:title_];
 891
 892     if ([self retainsNetworkActivityIndicator])
 893         [delegate_ releaseNetworkActivityIndicator];
 894
 895     [self didFinishLoading];
 896 }
 897
 898 - (bool) isLoading {
 899     return [loading_ count] != 0;
 900 }
 901
 902 - (id) initWithWidth:(float)width ofClass:(Class)_class {
 903     if ((self = [super init]) != nil) {
 904         width_ = width;
 905         class_ = _class;
 906
 907         [super setPageColor:nil];
 908
 909         allowsNavigationAction_ = true;
 910
 911         loading_ = [NSMutableSet setWithCapacity:5];
 912         registered_ = [NSMutableSet setWithCapacity:5];
 913         indirect_ = [[[IndirectDelegate alloc] initWithDelegate:self] autorelease];
 914
 915         reloaditem_ = [[[UIBarButtonItem alloc]
 916             initWithTitle:UCLocalize("RELOAD")
 917             style:[self rightButtonStyle]
 918             target:self
 919             action:@selector(reloadButtonClicked)
 920         ] autorelease];
 921
 922         loadingitem_ = [[[UIBarButtonItem alloc]
 923             initWithTitle:(kCFCoreFoundationVersionNumber >= 800 ? @"       " : @" ")
 924             style:UIBarButtonItemStylePlain
 925             target:self
 926             action:@selector(reloadButtonClicked)
 927         ] autorelease];
 928
 929         UIActivityIndicatorViewStyle style;
 930         float left;
 931         if (kCFCoreFoundationVersionNumber >= 800) {
 932             style = UIActivityIndicatorViewStyleGray;
 933             left = 7;
 934         } else {
 935             style = UIActivityIndicatorViewStyleWhite;
 936             left = 15;
 937         }
 938
 939         indicator_ = [[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:style] autorelease];
 940         [indicator_ setFrame:CGRectMake(left, 5, [indicator_ frame].size.width, [indicator_ frame].size.height)];
 941         [indicator_ setAutoresizingMask:UIViewAutoresizingFlexibleLeftMargin];
 942
 943         [self applyLeftButton];
 944         [self applyRightButton];
 945     } return self;
 946 }
 947
 948 - (NSString *) applicationNameForUserAgent {
 949     return nil;
 950 }
 951
 952 - (void) loadView {
 953     CGRect bounds([[UIScreen mainScreen] applicationFrame]);
 954
 955     webview_ = [[[CyteWebView alloc] initWithFrame:bounds] autorelease];
 956     [webview_ setDelegate:self];
 957     [self setView:webview_];
 958
 959     if ([webview_ respondsToSelector:@selector(setDataDetectorTypes:)])
 960         [webview_ setDataDetectorTypes:UIDataDetectorTypeAutomatic];
 961     else
 962         [webview_ setDetectsPhoneNumbers:NO];
 963
 964     [webview_ setScalesPageToFit:YES];
 965
 966     UIWebDocumentView *document([webview_ _documentView]);
 967
 968     // XXX: I think this improves scrolling; the hardcoded-ness sucks
 969     [document setTileSize:CGSizeMake(320, 500)];
 970
 971     WebView *webview([document webView]);
 972     WebPreferences *preferences([webview preferences]);
 973
 974     // XXX: I have no clue if I actually /want/ this modification
 975     if ([webview respondsToSelector:@selector(_setLayoutInterval:)])
 976         [webview _setLayoutInterval:0];
 977     else if ([preferences respondsToSelector:@selector(_setLayoutInterval:)])
 978         [preferences _setLayoutInterval:0];
 979
 980     [preferences setCacheModel:WebCacheModelDocumentBrowser];
 981     [preferences setJavaScriptCanOpenWindowsAutomatically:NO];
 982
 983     if ([preferences respondsToSelector:@selector(setOfflineWebApplicationCacheEnabled:)])
 984         [preferences setOfflineWebApplicationCacheEnabled:YES];
 985
 986     if (NSString *agent = [self applicationNameForUserAgent])
 987         [webview setApplicationNameForUserAgent:agent];
 988
 989     if ([webview respondsToSelector:@selector(setShouldUpdateWhileOffscreen:)])
 990         [webview setShouldUpdateWhileOffscreen:NO];
 991
 992 #if LogMessages
 993     if ([document respondsToSelector:@selector(setAllowsMessaging:)])
 994         [document setAllowsMessaging:YES];
 995     if ([webview respondsToSelector:@selector(_setAllowsMessaging:)])
 996         [webview _setAllowsMessaging:YES];
 997 #endif
 998
 999     if ([webview_ respondsToSelector:@selector(_scrollView)]) {
1000         scroller_ = [webview_ _scrollView];
1001
1002         [scroller_ setDirectionalLockEnabled:YES];
1003         [scroller_ setDecelerationRate:CYScrollViewDecelerationRateNormal];
1004         [scroller_ setDelaysContentTouches:NO];
1005
1006         [scroller_ setCanCancelContentTouches:YES];
1007     } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
1008         UIScroller *scroller([webview_ _scroller]);
1009         scroller_ = (UIScrollView *) scroller;
1010
1011         [scroller setDirectionalScrolling:YES];
1012         // XXX: we might be better off /not/ setting this on older systems
1013         [scroller setScrollDecelerationFactor:CYScrollViewDecelerationRateNormal]; /* 0.989324 */
1014         [scroller setScrollHysteresis:0]; /* 8 */
1015
1016         [scroller setThumbDetectionEnabled:NO];
1017
1018         // use NO with UIApplicationUseLegacyEvents(YES)
1019         [scroller setEventMode:YES];
1020
1021         // XXX: this is handled by setBounces, right?
1022         //[scroller setAllowsRubberBanding:YES];
1023     }
1024
1025     [webview_ setOpaque:NO];
1026     [webview_ setBackgroundColor:nil];
1027
1028     [scroller_ setFixedBackgroundPattern:YES];
1029     [scroller_ setBackgroundColor:color_];
1030     [scroller_ setClipsSubviews:YES];
1031
1032     [scroller_ setBounces:YES];
1033     [scroller_ setScrollingEnabled:YES];
1034     [scroller_ setShowBackgroundShadow:NO];
1035
1036     [self setViewportWidth:width_];
1037
1038     if ([[UIColor groupTableViewBackgroundColor] isEqual:[UIColor clearColor]]) {
1039         UITableView *table([[[UITableView alloc] initWithFrame:[webview_ bounds] style:UITableViewStyleGrouped] autorelease]);
1040         [table setScrollsToTop:NO];
1041         [webview_ insertSubview:table atIndex:0];
1042         [table setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
1043     }
1044
1045     [webview_ setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
1046
1047     ready_ = false;
1048 }
1049
1050 - (void) releaseSubviews {
1051     webview_ = nil;
1052     scroller_ = nil;
1053
1054     [self releaseNetworkActivityIndicator];
1055
1056     [super releaseSubviews];
1057 }
1058
1059 - (id) initWithWidth:(float)width {
1060     return [self initWithWidth:width ofClass:[self class]];
1061 }
1062
1063 - (id) init {
1064     return [self initWithWidth:0];
1065 }
1066
1067 - (id) initWithURL:(NSURL *)url {
1068     if ((self = [self init]) != nil) {
1069         [self setURL:url];
1070     } return self;
1071 }
1072
1073 - (id) initWithRequest:(NSURLRequest *)request {
1074     if ((self = [self init]) != nil) {
1075         [self setRequest:request];
1076     } return self;
1077 }
1078
1079 + (void) _lockJavaScript:(WebPreferences *)preferences {
1080     WebThreadLocked lock;
1081     [preferences setJavaScriptCanOpenWindowsAutomatically:NO];
1082 }
1083
1084 - (void) callFunction:(WebScriptObject *)function {
1085     WebThreadLocked lock;
1086
1087     WebView *webview([[[self webView] _documentView] webView]);
1088     WebPreferences *preferences([webview preferences]);
1089
1090     [preferences setJavaScriptCanOpenWindowsAutomatically:YES];
1091     if ([webview respondsToSelector:@selector(_preferencesChanged:)])
1092         [webview _preferencesChanged:preferences];
1093     else
1094         [webview _preferencesChangedNotification:[NSNotification notificationWithName:@"" object:preferences]];
1095
1096     WebFrame *frame([webview mainFrame]);
1097     JSGlobalContextRef context([frame globalContext]);
1098
1099     JSObjectRef object([function JSObject]);
1100     if ($JSObjectCallAsFunction != NULL)
1101         ($JSObjectCallAsFunction)(context, object, NULL, 0, NULL, NULL);
1102
1103     // XXX: the JavaScript code submits a form, which seems to happen asynchronously
1104     NSObject *target([CyteWebViewController class]);
1105     [NSObject cancelPreviousPerformRequestsWithTarget:target selector:@selector(_lockJavaScript:) object:preferences];
1106     [target performSelector:@selector(_lockJavaScript:) withObject:preferences afterDelay:1];
1107 }
1108
1109 - (void) reloadButtonClicked {
1110     [self reloadURLWithCache:NO];
1111 }
1112
1113 - (void) _customButtonClicked {
1114     [self reloadButtonClicked];
1115 }
1116
1117 - (void) customButtonClicked {
1118 #if !AlwaysReload
1119     if (function_ != nil)
1120         [self callFunction:function_];
1121     else
1122 #endif
1123     [self _customButtonClicked];
1124 }
1125
1126 + (float) defaultWidth {
1127     return 980;
1128 }
1129
1130 - (void) setNavigationBarStyle:(NSString *)name {
1131     UIBarStyle style;
1132     if ([name isEqualToString:@"Black"])
1133         style = UIBarStyleBlack;
1134     else
1135         style = UIBarStyleDefault;
1136
1137     [[[self navigationController] navigationBar] setBarStyle:style];
1138 }
1139
1140 - (void) setNavigationBarTintColor:(UIColor *)color {
1141     [[[self navigationController] navigationBar] setTintColor:color];
1142 }
1143
1144 - (void) setBadgeValue:(id)value {
1145     [[[self navigationController] tabBarItem] setBadgeValue:value];
1146 }
1147
1148 - (void) setHidesBackButton:(bool)value {
1149     [[self navigationItem] setHidesBackButton:value];
1150     [self applyLeftButton];
1151 }
1152
1153 - (void) setHidesBackButtonByNumber:(NSNumber *)value {
1154     [self setHidesBackButton:[value boolValue]];
1155 }
1156
1157 - (void) dispatchEvent:(NSString *)event {
1158     [[self webView] dispatchEvent:event];
1159 }
1160
1161 - (bool) hidesNavigationBar {
1162     return hidesNavigationBar_;
1163 }
1164
1165 - (void) _setHidesNavigationBar:(bool)value animated:(bool)animated {
1166     if (visible_)
1167         [[self navigationController] setNavigationBarHidden:(value && [self hidesNavigationBar]) animated:animated];
1168 }
1169
1170 - (void) setHidesNavigationBar:(bool)value {
1171     if (hidesNavigationBar_ != value) {
1172         hidesNavigationBar_ = value;
1173         [self _setHidesNavigationBar:YES animated:YES];
1174     }
1175 }
1176
1177 - (void) setHidesNavigationBarByNumber:(NSNumber *)value {
1178     [self setHidesNavigationBar:[value boolValue]];
1179 }
1180
1181 - (void) setScrollAlwaysBounceVertical:(bool)value {
1182     if ([webview_ respondsToSelector:@selector(_scrollView)]) {
1183         UIScrollView *scroller([webview_ _scrollView]);
1184         [scroller setAlwaysBounceVertical:value];
1185     } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
1186         //UIScroller *scroller([webview_ _scroller]);
1187         // XXX: I am sad here.
1188     } else return;
1189 }
1190
1191 - (void) setScrollAlwaysBounceVerticalNumber:(NSNumber *)value {
1192     [self setScrollAlwaysBounceVertical:[value boolValue]];
1193 }
1194
1195 - (void) setScrollIndicatorStyle:(UIScrollViewIndicatorStyle)style {
1196     if ([webview_ respondsToSelector:@selector(_scrollView)]) {
1197         UIScrollView *scroller([webview_ _scrollView]);
1198         [scroller setIndicatorStyle:style];
1199     } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
1200         UIScroller *scroller([webview_ _scroller]);
1201         [scroller setScrollerIndicatorStyle:style];
1202     } else return;
1203 }
1204
1205 - (void) setScrollIndicatorStyleWithName:(NSString *)style {
1206     UIScrollViewIndicatorStyle value;
1207
1208     if (false);
1209     else if ([style isEqualToString:@"default"])
1210         value = UIScrollViewIndicatorStyleDefault;
1211     else if ([style isEqualToString:@"black"])
1212         value = UIScrollViewIndicatorStyleBlack;
1213     else if ([style isEqualToString:@"white"])
1214         value = UIScrollViewIndicatorStyleWhite;
1215     else return;
1216
1217     [self setScrollIndicatorStyle:value];
1218 }
1219
1220 - (void) viewWillAppear:(BOOL)animated {
1221     visible_ = true;
1222
1223     if ([self hidesNavigationBar])
1224         [self _setHidesNavigationBar:YES animated:animated];
1225
1226     // XXX: why isn't this evern called automatically?
1227     [[self webView] setNeedsLayout];
1228
1229     [self dispatchEvent:@"CydiaViewWillAppear"];
1230     [super viewWillAppear:animated];
1231 }
1232
1233 - (void) viewDidAppear:(BOOL)animated {
1234     [super viewDidAppear:animated];
1235     [self dispatchEvent:@"CydiaViewDidAppear"];
1236 }
1237
1238 - (void) viewWillDisappear:(BOOL)animated {
1239     [self dispatchEvent:@"CydiaViewWillDisappear"];
1240     [super viewWillDisappear:animated];
1241
1242     if ([self hidesNavigationBar])
1243         [self _setHidesNavigationBar:NO animated:animated];
1244
1245     visible_ = false;
1246 }
1247
1248 - (void) viewDidDisappear:(BOOL)animated {
1249     [super viewDidDisappear:animated];
1250     [self dispatchEvent:@"CydiaViewDidDisappear"];
1251 }
1252
1253 - (void) updateHeights:(NSTimer *)timer {
1254     for (WebFrame *frame in (id) registered_)
1255         [frame cydia$updateHeight];
1256 }
1257
1258 - (void) registerFrame:(WebFrame *)frame {
1259     [registered_ addObject:frame];
1260
1261     if (timer_ == nil)
1262         timer_ = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(updateHeights:) userInfo:nil repeats:YES];
1263 }
1264
1265 @end