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/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "WebDragClient.h"
#if ENABLE(DRAG_SUPPORT)
#import "PasteboardTypes.h"
#import "ShareableBitmap.h"
#import "WebCoreArgumentCoders.h"
#import "WebPage.h"
#import "WebPageProxyMessages.h"
#import <WebCore/CachedImage.h>
#import <WebCore/DOMElementInternal.h>
#import <WebCore/DOMPrivate.h>
#import <WebCore/DragController.h>
#import <WebCore/Frame.h>
#import <WebCore/FrameView.h>
#import <WebCore/GraphicsContext.h>
#import <WebCore/LegacyWebArchive.h>
#import <WebCore/Page.h>
#import <WebCore/RenderImage.h>
#import <WebCore/ResourceHandle.h>
#import <WebCore/StringTruncator.h>
#import <WebKit/WebArchive.h>
#import <WebKit/WebKitNSStringExtras.h>
#import <WebKit/WebNSFileManagerExtras.h>
#import <WebKit/WebNSPasteboardExtras.h>
#import <WebKit/WebNSURLExtras.h>
#import <WebKitSystemInterface.h>
#import <wtf/StdLibExtras.h>
using namespace WebCore;
using namespace WebKit;
namespace WebKit {
static PassRefPtr<ShareableBitmap> convertImageToBitmap(NSImage *image, const IntSize& size)
{
RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(size, ShareableBitmap::SupportsAlpha);
OwnPtr<GraphicsContext> graphicsContext = bitmap->createGraphicsContext();
RetainPtr<NSGraphicsContext> savedContext = [NSGraphicsContext currentContext];
[NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:graphicsContext->platformContext() flipped:YES]];
[image drawInRect:NSMakeRect(0, 0, bitmap->size().width(), bitmap->size().height()) fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1 respectFlipped:YES hints:nil];
[NSGraphicsContext setCurrentContext:savedContext.get()];
return bitmap.release();
}
void WebDragClient::startDrag(RetainPtr<NSImage> image, const IntPoint& point, const IntPoint&, Clipboard*, Frame* frame, bool linkDrag)
{
IntSize bitmapSize([image.get() size]);
bitmapSize.scale(frame->page()->deviceScaleFactor());
RefPtr<ShareableBitmap> bitmap = convertImageToBitmap(image.get(), bitmapSize);
ShareableBitmap::Handle handle;
if (!bitmap->createHandle(handle))
return;
// FIXME: Seems this message should be named StartDrag, not SetDragImage.
m_page->send(Messages::WebPageProxy::SetDragImage(frame->view()->contentsToWindow(point), handle, linkDrag));
}
static WebCore::CachedImage* cachedImage(Element* element)
{
RenderObject* renderer = element->renderer();
if (!renderer)
return 0;
if (!renderer->isRenderImage())
return 0;
WebCore::CachedImage* image = toRenderImage(renderer)->cachedImage();
if (!image || image->errorOccurred())
return 0;
return image;
}
void WebDragClient::declareAndWriteDragImage(const String& pasteboardName, DOMElement *element, NSURL *URL, NSString *title, WebCore::Frame*)
{
ASSERT(element);
ASSERT(pasteboardName == String(NSDragPboard));
Element* coreElement = core(element);
WebCore::CachedImage* image = cachedImage(coreElement);
NSString *extension = @"";
if (image) {
extension = image->image()->filenameExtension();
if (![extension length])
return;
}
if (![title length]) {
title = [[URL path] lastPathComponent];
if (![title length])
title = [URL _web_userVisibleString];
}
RefPtr<LegacyWebArchive> archive = LegacyWebArchive::create(coreElement);
NSURLResponse *response = image->response().nsURLResponse();
RefPtr<SharedBuffer> imageBuffer = image->image()->data();
size_t imageSize = imageBuffer->size();
SharedMemory::Handle imageHandle;
RefPtr<SharedMemory> sharedMemoryBuffer = SharedMemory::create(imageBuffer->size());
memcpy(sharedMemoryBuffer->data(), imageBuffer->data(), imageSize);
sharedMemoryBuffer->createHandle(imageHandle, SharedMemory::ReadOnly);
RetainPtr<CFDataRef> data = archive ? archive->rawDataRepresentation() : 0;
SharedMemory::Handle archiveHandle;
size_t archiveSize = 0;
if (data) {
RefPtr<SharedBuffer> buffer = SharedBuffer::wrapNSData((NSData *)data.get());
RefPtr<SharedMemory> sharedMemoryBuffer = SharedMemory::create(buffer->size());
archiveSize = buffer->size();
memcpy(sharedMemoryBuffer->data(), buffer->data(), archiveSize);
sharedMemoryBuffer->createHandle(archiveHandle, SharedMemory::ReadOnly);
}
m_page->send(Messages::WebPageProxy::SetPromisedData(pasteboardName, imageHandle, imageSize, String([response suggestedFilename]), String(extension), String(title), String([[response URL] absoluteString]), String([URL _web_userVisibleString]), archiveHandle, archiveSize));
}
} // namespace WebKit
#endif // ENABLE(DRAG_SUPPORT)
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