pasteboardmac.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

        [s replaceOccurrencesOfString:NonBreakingSpaceString withString:@" " options:0 range:NSMakeRange(0, [s length])];
        [pasteboard setString:s forType:NSStringPboardType];
        [s release];
    }
    
    if ([types containsObject:WebSmartPastePboardType]) {
        [pasteboard setData:nil forType:WebSmartPastePboardType];
    }
}
    
void Pasteboard::writeSelection(Range* selectedRange, bool canSmartCopyOrDelete, Frame* frame)
{
    Pasteboard::writeSelection(m_pasteboard.get(), selectedRange, canSmartCopyOrDelete, frame);
}

void Pasteboard::writeURL(NSPasteboard* pasteboard, NSArray* types, const KURL& url, const String& titleStr, Frame* frame)
{
    if (WebArchivePboardType == nil)
        Pasteboard::generalPasteboard(); //Initialises pasteboard types
   
    if (types == nil) {
        types = writableTypesForURL();
        [pasteboard declareTypes:types owner:nil];
    }
    
    ASSERT(!url.isEmpty());
    
    NSURL *cocoaURL = url;
    NSString *userVisibleString = frame->editor()->client()->userVisibleString(cocoaURL);
    
    NSString *title = (NSString*)titleStr;
    if ([title length] == 0) {
        title = [[cocoaURL path] lastPathComponent];
        if ([title length] == 0)
            title = userVisibleString;
    }
        
    if ([types containsObject:WebURLsWithTitlesPboardType])
        [pasteboard setPropertyList:[NSArray arrayWithObjects:[NSArray arrayWithObject:userVisibleString], 
                                     [NSArray arrayWithObject:(NSString*)titleStr.stripWhiteSpace()], 
                                     nil]
                            forType:WebURLsWithTitlesPboardType];
    if ([types containsObject:NSURLPboardType])
        [cocoaURL writeToPasteboard:pasteboard];
    if ([types containsObject:WebURLPboardType])
        [pasteboard setString:userVisibleString forType:WebURLPboardType];
    if ([types containsObject:WebURLNamePboardType])
        [pasteboard setString:title forType:WebURLNamePboardType];
    if ([types containsObject:NSStringPboardType])
        [pasteboard setString:userVisibleString forType:NSStringPboardType];
}
    
void Pasteboard::writeURL(const KURL& url, const String& titleStr, Frame* frame)
{
    Pasteboard::writeURL(m_pasteboard.get(), nil, url, titleStr, frame);
}

static NSFileWrapper* fileWrapperForImage(CachedResource* resource, NSURL *url)
{
    SharedBuffer* coreData = resource->data();
    NSData *data = [[[NSData alloc] initWithBytes:coreData->data() length:coreData->size()] autorelease];
    NSFileWrapper *wrapper = [[[NSFileWrapper alloc] initRegularFileWithContents:data] autorelease];
    String coreMIMEType = resource->response().mimeType();
    NSString *MIMEType = nil;
    if (!coreMIMEType.isNull())
        MIMEType = coreMIMEType;
    [wrapper setPreferredFilename:suggestedFilenameWithMIMEType(url, MIMEType)];
    return wrapper;
}

void Pasteboard::writeFileWrapperAsRTFDAttachment(NSFileWrapper* wrapper)
{
    NSTextAttachment *attachment = [[NSTextAttachment alloc] initWithFileWrapper:wrapper];
    
    NSAttributedString *string = [NSAttributedString attributedStringWithAttachment:attachment];
    [attachment release];
    
    NSData *RTFDData = [string RTFDFromRange:NSMakeRange(0, [string length]) documentAttributes:nil];
    [m_pasteboard.get() setData:RTFDData forType:NSRTFDPboardType];
}

void Pasteboard::writeImage(Node* node, const KURL& url, const String& title)
{
    ASSERT(node);
    Frame* frame = node->document()->frame();

    NSURL *cocoaURL = url;
    ASSERT(cocoaURL);

    ASSERT(node->renderer() && node->renderer()->isImage());
    RenderImage* renderer = toRenderImage(node->renderer());
    CachedImage* cachedImage = static_cast<CachedImage*>(renderer->cachedImage());
    ASSERT(cachedImage);
    
    if (cachedImage->errorOccurred())
        return;

    NSArray* types = writableTypesForImage();
    [m_pasteboard.get() declareTypes:types owner:nil];
    writeURL(m_pasteboard.get(), types, cocoaURL, nsStringNilIfEmpty(title), frame);
    
    Image* image = cachedImage->image();
    ASSERT(image);
    
    [m_pasteboard.get() setData:[image->getNSImage() TIFFRepresentation] forType:NSTIFFPboardType];

    String MIMEType = cachedImage->response().mimeType();
    ASSERT(MIMETypeRegistry::isSupportedImageResourceMIMEType(MIMEType));

    writeFileWrapperAsRTFDAttachment(fileWrapperForImage(cachedImage, cocoaURL));
}

bool Pasteboard::canSmartReplace()
{
    return [[m_pasteboard.get() types] containsObject:WebSmartPastePboardType];
}

String Pasteboard::plainText(Frame* frame)
{
    NSArray *types = [m_pasteboard.get() types];
    
    if ([types containsObject:NSStringPboardType])
        return [[m_pasteboard.get() stringForType:NSStringPboardType] precomposedStringWithCanonicalMapping];
    
    NSAttributedString *attributedString = nil;
    NSString *string;

    if ([types containsObject:NSRTFDPboardType])
        attributedString = [[NSAttributedString alloc] initWithRTFD:[m_pasteboard.get() dataForType:NSRTFDPboardType] documentAttributes:NULL];
    if (attributedString == nil && [types containsObject:NSRTFPboardType])
        attributedString = [[NSAttributedString alloc] initWithRTF:[m_pasteboard.get() dataForType:NSRTFPboardType] documentAttributes:NULL];
    if (attributedString != nil) {
        string = [[attributedString string] precomposedStringWithCanonicalMapping];
        [attributedString release];
        return string;
    }
    
    if ([types containsObject:NSFilenamesPboardType]) {
        string = [[[m_pasteboard.get() propertyListForType:NSFilenamesPboardType] componentsJoinedByString:@"\n"] precomposedStringWithCanonicalMapping];
        if (string != nil)
            return string;
    }
    
    
    if (NSURL *url = [NSURL URLFromPasteboard:m_pasteboard.get()]) {
        // FIXME: using the editorClient to call into webkit, for now, since 
        // calling _web_userVisibleString from WebCore involves migrating a sizable web of 
        // helper code that should either be done in a separate patch or figured out in another way.
        string = frame->editor()->client()->userVisibleString(url);
        if ([string length] > 0)
            return [string precomposedStringWithCanonicalMapping];
    }

    
    return String(); 
}

PassRefPtr<DocumentFragment> Pasteboard::documentFragment(Frame* frame, PassRefPtr<Range> context, bool allowPlainText, bool& chosePlainText)
{
    NSArray *types = [m_pasteboard.get() types];
    chosePlainText = false;

    if ([types containsObject:NSHTMLPboardType]) {
        NSString *HTMLString = [m_pasteboard.get() stringForType:NSHTMLPboardType];
        // This is a hack to make Microsoft's HTML pasteboard data work. See 3778785.
        if ([HTMLString hasPrefix:@"Version:"]) {
            NSRange range = [HTMLString rangeOfString:@"<html" options:NSCaseInsensitiveSearch];
            if (range.location != NSNotFound) {
                HTMLString = [HTMLString substringFromIndex:range.location];
            }
        }
        if ([HTMLString length] != 0) {
            RefPtr<DocumentFragment> fragment = createFragmentFromMarkup(frame->document(), HTMLString, "");
            if (fragment)
                return fragment.release();
        }
    }
    
    if (allowPlainText && [types containsObject:NSStringPboardType]) {
        chosePlainText = true;
        RefPtr<DocumentFragment> fragment = createFragmentFromText(context.get(), [m_pasteboard.get() stringForType:NSStringPboardType]);
        if (fragment)
            return fragment.release();
    }
    
    return 0;
}

}