webframe.mm

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

    return _private->coreFrame->loader()->firstLayoutDone();
}

- (WebFrameLoadType)_loadType
{
    return (WebFrameLoadType)_private->coreFrame->loader()->loadType();
}

- (NSRange)_selectedNSRange
{
    return [self _convertToNSRange:_private->coreFrame->selection()->toNormalizedRange().get()];
}

- (void)_selectNSRange:(NSRange)range
{
    RefPtr<Range> domRange = [self _convertToDOMRange:range];
    if (domRange)
        _private->coreFrame->selection()->setSelection(VisibleSelection(domRange.get(), SEL_DEFAULT_AFFINITY));
}

- (BOOL)_isDisplayingStandaloneImage
{
    Document* document = _private->coreFrame->document();
    return document && document->isImageDocument();
}

- (unsigned)_pendingFrameUnloadEventCount
{
    return _private->coreFrame->eventHandler()->pendingFrameUnloadEventCount();
}

- (WebIconFetcher *)fetchApplicationIcon:(id)target
                                selector:(SEL)selector
{
    return [WebIconFetcher _fetchApplicationIconForFrame:self
                                                  target:target
                                                selector:selector];
}

- (void)_setIsDisconnected:(bool)isDisconnected
{
    _private->coreFrame->setIsDisconnected(isDisconnected);
}

- (void)_setExcludeFromTextSearch:(bool)exclude
{
    _private->coreFrame->setExcludeFromTextSearch(exclude);
}

#if ENABLE(NETSCAPE_PLUGIN_API)
- (void)_recursive_resumeNullEventsForAllNetscapePlugins
{
    Frame* coreFrame = core(self);
    for (Frame* frame = coreFrame; frame; frame = frame->tree()->traverseNext(coreFrame)) {
        NSView <WebDocumentView> *documentView = [[kit(frame) frameView] documentView];
        if ([documentView isKindOfClass:[WebHTMLView class]])
            [(WebHTMLView *)documentView _resumeNullEventsForAllNetscapePlugins];
    }
}

- (void)_recursive_pauseNullEventsForAllNetscapePlugins
{
    Frame* coreFrame = core(self);
    for (Frame* frame = coreFrame; frame; frame = frame->tree()->traverseNext(coreFrame)) {
        NSView <WebDocumentView> *documentView = [[kit(frame) frameView] documentView];
        if ([documentView isKindOfClass:[WebHTMLView class]])
            [(WebHTMLView *)documentView _pauseNullEventsForAllNetscapePlugins];
    }
}
#endif

- (BOOL)_pauseAnimation:(NSString*)name onNode:(DOMNode *)node atTime:(NSTimeInterval)time
{
    Frame* frame = core(self);
    if (!frame)
        return false;

    AnimationController* controller = frame->animation();
    if (!controller)
        return false;

    Node* coreNode = [node _node];
    if (!coreNode || !coreNode->renderer())
        return false;

    return controller->pauseAnimationAtTime(coreNode->renderer(), name, time);
}

- (BOOL)_pauseTransitionOfProperty:(NSString*)name onNode:(DOMNode*)node atTime:(NSTimeInterval)time
{
    Frame* frame = core(self);
    if (!frame)
        return false;

    AnimationController* controller = frame->animation();
    if (!controller)
        return false;

    Node* coreNode = [node _node];
    if (!coreNode || !coreNode->renderer())
        return false;

    return controller->pauseTransitionAtTime(coreNode->renderer(), name, time);
}

- (unsigned) _numberOfActiveAnimations
{
    Frame* frame = core(self);
    if (!frame)
        return false;

    AnimationController* controller = frame->animation();
    if (!controller)
        return false;

    return controller->numberOfActiveAnimations();
}

- (void)_replaceSelectionWithFragment:(DOMDocumentFragment *)fragment selectReplacement:(BOOL)selectReplacement smartReplace:(BOOL)smartReplace matchStyle:(BOOL)matchStyle
{
    if (_private->coreFrame->selection()->isNone() || !fragment)
        return;
    
    applyCommand(ReplaceSelectionCommand::create(_private->coreFrame->document(), [fragment _documentFragment], selectReplacement, smartReplace, matchStyle));
    _private->coreFrame->revealSelection(ScrollAlignment::alignToEdgeIfNeeded);
}

- (void)_replaceSelectionWithText:(NSString *)text selectReplacement:(BOOL)selectReplacement smartReplace:(BOOL)smartReplace
{   
    DOMDocumentFragment* fragment = kit(createFragmentFromText(_private->coreFrame->selection()->toNormalizedRange().get(), text).get());
    [self _replaceSelectionWithFragment:fragment selectReplacement:selectReplacement smartReplace:smartReplace matchStyle:YES];
}

- (void)_replaceSelectionWithMarkupString:(NSString *)markupString baseURLString:(NSString *)baseURLString selectReplacement:(BOOL)selectReplacement smartReplace:(BOOL)smartReplace
{
    DOMDocumentFragment *fragment = [self _documentFragmentWithMarkupString:markupString baseURLString:baseURLString];
    [self _replaceSelectionWithFragment:fragment selectReplacement:selectReplacement smartReplace:smartReplace matchStyle:NO];
}

@end

@implementation WebFrame

- (id)init
{
    return nil;
}

// Should be deprecated.
- (id)initWithName:(NSString *)name webFrameView:(WebFrameView *)view webView:(WebView *)webView
{
    return nil;
}

- (void)dealloc
{
    [_private release];
    --WebFrameCount;
    [super dealloc];
}

- (void)finalize
{
    --WebFrameCount;
    [super finalize];
}

- (NSString *)name
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return nil;
    return coreFrame->tree()->name();
}

- (WebFrameView *)frameView
{
    return _private->webFrameView;
}

- (WebView *)webView
{
    return getWebView(self);
}

- (DOMDocument *)DOMDocument
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return nil;
    
    // FIXME: <rdar://problem/5145841> When loading a custom view/representation 
    // into a web frame, the old document can still be around. This makes sure that
    // we'll return nil in those cases.
    if (![[self _dataSource] _isDocumentHTML]) 
        return nil; 

    Document* document = coreFrame->document();
    
    // According to the documentation, we should return nil if the frame doesn't have a document.
    // While full-frame images and plugins do have an underlying HTML document, we return nil here to be
    // backwards compatible.
    if (document && (document->isPluginDocument() || document->isImageDocument()))
        return nil;
    
    return kit(coreFrame->document());
}

- (DOMHTMLElement *)frameElement
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return nil;
    return kit(coreFrame->ownerElement());
}

- (WebDataSource *)provisionalDataSource
{
    Frame* coreFrame = _private->coreFrame;
    return coreFrame ? dataSource(coreFrame->loader()->provisionalDocumentLoader()) : nil;
}

- (WebDataSource *)dataSource
{
    Frame* coreFrame = _private->coreFrame;
    return coreFrame && coreFrame->loader()->frameHasLoaded() ? [self _dataSource] : nil;
}

- (void)loadRequest:(NSURLRequest *)request
{
    _private->coreFrame->loader()->load(request, false);
}

static NSURL *createUniqueWebDataURL()
{
    CFUUIDRef UUIDRef = CFUUIDCreate(kCFAllocatorDefault);
    NSString *UUIDString = (NSString *)CFUUIDCreateString(kCFAllocatorDefault, UUIDRef);
    CFRelease(UUIDRef);
    NSURL *URL = [NSURL URLWithString:[NSString stringWithFormat:@"applewebdata://%@", UUIDString]];
    CFRelease(UUIDString);
    return URL;
}

- (void)_loadData:(NSData *)data MIMEType:(NSString *)MIMEType textEncodingName:(NSString *)encodingName baseURL:(NSURL *)baseURL unreachableURL:(NSURL *)unreachableURL
{
    KURL responseURL;
    if (!baseURL) {
        baseURL = blankURL();
        responseURL = createUniqueWebDataURL();
    }
    
    ResourceRequest request([baseURL absoluteURL]);

    // hack because Mail checks for this property to detect data / archive loads
    [NSURLProtocol setProperty:@"" forKey:@"WebDataRequest" inRequest:(NSMutableURLRequest *)request.nsURLRequest()];

    SubstituteData substituteData(WebCore::SharedBuffer::wrapNSData(data), MIMEType, encodingName, [unreachableURL absoluteURL], responseURL);

    _private->coreFrame->loader()->load(request, substituteData, false);
}


- (void)loadData:(NSData *)data MIMEType:(NSString *)MIMEType textEncodingName:(NSString *)encodingName baseURL:(NSURL *)baseURL
{
    if (!MIMEType)
        MIMEType = @"text/html";
    [self _loadData:data MIMEType:MIMEType textEncodingName:encodingName baseURL:baseURL unreachableURL:nil];
}

- (void)_loadHTMLString:(NSString *)string baseURL:(NSURL *)baseURL unreachableURL:(NSURL *)unreachableURL
{
    NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
    [self _loadData:data MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:baseURL unreachableURL:unreachableURL];
}

- (void)loadHTMLString:(NSString *)string baseURL:(NSURL *)baseURL
{
    [self _loadHTMLString:string baseURL:baseURL unreachableURL:nil];
}

- (void)loadAlternateHTMLString:(NSString *)string baseURL:(NSURL *)baseURL forUnreachableURL:(NSURL *)unreachableURL
{
    [self _loadHTMLString:string baseURL:baseURL unreachableURL:unreachableURL];
}

- (void)loadArchive:(WebArchive *)archive
{
    if (LegacyWebArchive* coreArchive = [archive _coreLegacyWebArchive])
        _private->coreFrame->loader()->loadArchive(coreArchive);
}

- (void)stopLoading
{
    if (!_private->coreFrame)
        return;
    _private->coreFrame->loader()->stopForUserCancel();
}

- (void)reload
{
    if (!WebKitLinkedOnOrAfter(WEBKIT_FIRST_VERSION_WITH_RELOAD_FROM_ORIGIN) &&
        [[[NSBundle mainBundle] bundleIdentifier] isEqualToString:@"com.apple.Safari"])
        _private->coreFrame->loader()->reload(GetCurrentKeyModifiers() & shiftKey);
    else
        _private->coreFrame->loader()->reload(false);
}

- (void)reloadFromOrigin
{
    _private->coreFrame->loader()->reload(true);
}

- (WebFrame *)findFrameNamed:(NSString *)name
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return nil;
    return kit(coreFrame->tree()->find(name));
}

- (WebFrame *)parentFrame
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return nil;
    return [[kit(coreFrame->tree()->parent()) retain] autorelease];
}

- (NSArray *)childFrames
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return [NSArray array];
    NSMutableArray *children = [NSMutableArray arrayWithCapacity:coreFrame->tree()->childCount()];
    for (Frame* child = coreFrame->tree()->firstChild(); child; child = child->tree()->nextSibling())
        [children addObject:kit(child)];
    return children;
}

- (WebScriptObject *)windowObject
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return 0;
    return coreFrame->script()->windowScriptObject();
}

- (JSGlobalContextRef)globalContext
{
    Frame* coreFrame = _private->coreFrame;
    if (!coreFrame)
        return 0;
    return toGlobalRef(coreFrame->script()->globalObject()->globalExec());
}

@end