RemoteLayerTreeHostIOS.mm [plain text]
/*
* Copyright (C) 2014 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 "RemoteLayerTreeHost.h"
#if PLATFORM(IOS_FAMILY)
#import "RemoteLayerTreeDrawingAreaProxy.h"
#import "RemoteLayerTreeViews.h"
#import "UIKitSPI.h"
#import "WebPageProxy.h"
#import <UIKit/UIScrollView.h>
#import <pal/spi/cocoa/QuartzCoreSPI.h>
namespace WebKit {
using namespace WebCore;
std::unique_ptr<RemoteLayerTreeNode> RemoteLayerTreeHost::makeNode(const RemoteLayerTreeTransaction::LayerCreationProperties& properties)
{
auto makeWithView = [&] (RetainPtr<UIView> view) {
return makeUnique<RemoteLayerTreeNode>(properties.layerID, WTFMove(view));
};
auto makeAdoptingView = [&] (UIView* view) {
return makeWithView(adoptNS(view));
};
switch (properties.type) {
case PlatformCALayer::LayerTypeLayer:
case PlatformCALayer::LayerTypeWebLayer:
case PlatformCALayer::LayerTypeRootLayer:
case PlatformCALayer::LayerTypeSimpleLayer:
case PlatformCALayer::LayerTypeTiledBackingLayer:
case PlatformCALayer::LayerTypePageTiledBackingLayer:
return makeAdoptingView([[WKCompositingView alloc] init]);
case PlatformCALayer::LayerTypeTiledBackingTileLayer:
return RemoteLayerTreeNode::createWithPlainLayer(properties.layerID);
case PlatformCALayer::LayerTypeBackdropLayer:
return makeAdoptingView([[WKSimpleBackdropView alloc] init]);
case PlatformCALayer::LayerTypeLightSystemBackdropLayer:
return makeAdoptingView([[WKBackdropView alloc] initWithFrame:CGRectZero privateStyle:_UIBackdropViewStyle_Light]);
case PlatformCALayer::LayerTypeDarkSystemBackdropLayer:
return makeAdoptingView([[WKBackdropView alloc] initWithFrame:CGRectZero privateStyle:_UIBackdropViewStyle_Dark]);
case PlatformCALayer::LayerTypeTransformLayer:
return makeAdoptingView([[WKTransformView alloc] init]);
case PlatformCALayer::LayerTypeCustom:
case PlatformCALayer::LayerTypeAVPlayerLayer:
case PlatformCALayer::LayerTypeContentsProvidedLayer:
if (!m_isDebugLayerTreeHost) {
auto view = adoptNS([[WKUIRemoteView alloc] initWithFrame:CGRectZero
pid:m_drawingArea->page().processIdentifier() contextID:properties.hostingContextID]);
if (properties.type == PlatformCALayer::LayerTypeAVPlayerLayer) {
// Invert the scale transform added in the WebProcess to fix <rdar://problem/18316542>.
float inverseScale = 1 / properties.hostingDeviceScaleFactor;
[[view layer] setTransform:CATransform3DMakeScale(inverseScale, inverseScale, 1)];
}
return makeWithView(WTFMove(view));
}
return makeAdoptingView([[WKCompositingView alloc] init]);
case PlatformCALayer::LayerTypeShapeLayer:
return makeAdoptingView([[WKShapeView alloc] init]);
case PlatformCALayer::LayerTypeScrollContainerLayer:
if (!m_isDebugLayerTreeHost)
return makeAdoptingView([[WKChildScrollView alloc] init]);
// The debug indicator parents views under layers, which can cause crashes with UIScrollView.
return makeAdoptingView([[UIView alloc] init]);
default:
ASSERT_NOT_REACHED();
return nullptr;
}
}
} // namespace WebKit
#endif // PLATFORM(IOS_FAMILY)