| /* |
| * Copyright (C) 2017 Igalia S.L. 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. |
| */ |
| |
| #pragma once |
| |
| #if PLATFORM(IOS_FAMILY) && ENABLE(ASYNC_SCROLLING) |
| |
| #include <UIKit/UIScrollView.h> |
| #include <WebCore/ScrollingCoordinator.h> |
| #include <WebCore/ScrollingTreeScrollingNode.h> |
| #include <WebCore/ScrollingTreeScrollingNodeDelegate.h> |
| |
| OBJC_CLASS CALayer; |
| OBJC_CLASS UIScrollView; |
| OBJC_CLASS WKScrollingNodeScrollViewDelegate; |
| |
| namespace WebCore { |
| |
| class FloatPoint; |
| class FloatRect; |
| class FloatSize; |
| class ScrollingTreeScrollingNode; |
| |
| } |
| |
| namespace WebKit { |
| |
| class ScrollingTreeScrollingNodeDelegateIOS : public WebCore::ScrollingTreeScrollingNodeDelegate { |
| public: |
| explicit ScrollingTreeScrollingNodeDelegateIOS(WebCore::ScrollingTreeScrollingNode&); |
| ~ScrollingTreeScrollingNodeDelegateIOS() final; |
| |
| void scrollWillStart() const; |
| void scrollDidEnd() const; |
| void scrollViewWillStartPanGesture() const; |
| void scrollViewDidScroll(const WebCore::FloatPoint& scrollPosition, bool inUserInteraction); |
| |
| void currentSnapPointIndicesDidChange(unsigned horizontal, unsigned vertical) const; |
| CALayer *scrollLayer() const { return m_scrollLayer.get(); } |
| |
| void resetScrollViewDelegate(); |
| void commitStateBeforeChildren(const WebCore::ScrollingStateScrollingNode&); |
| void commitStateAfterChildren(const WebCore::ScrollingStateScrollingNode&); |
| |
| void repositionScrollingLayers(); |
| |
| #if ENABLE(POINTER_EVENTS) |
| OptionSet<TouchAction> activeTouchActions() const { return m_activeTouchActions; } |
| void computeActiveTouchActionsForGestureRecognizer(UIGestureRecognizer*); |
| void clearActiveTouchActions() { m_activeTouchActions = { }; } |
| void cancelPointersForGestureRecognizer(UIGestureRecognizer*); |
| #endif |
| |
| private: |
| UIScrollView *scrollView() const; |
| |
| RetainPtr<CALayer> m_scrollLayer; |
| RetainPtr<CALayer> m_scrolledContentsLayer; |
| RetainPtr<WKScrollingNodeScrollViewDelegate> m_scrollViewDelegate; |
| #if ENABLE(POINTER_EVENTS) |
| OptionSet<TouchAction> m_activeTouchActions { }; |
| #endif |
| bool m_updatingFromStateNode { false }; |
| }; |
| |
| } // namespace WebKit |
| |
| @interface WKScrollingNodeScrollViewDelegate : NSObject <UIScrollViewDelegate> { |
| WebKit::ScrollingTreeScrollingNodeDelegateIOS* _scrollingTreeNodeDelegate; |
| } |
| |
| @property (nonatomic, getter=_isInUserInteraction) BOOL inUserInteraction; |
| |
| - (instancetype)initWithScrollingTreeNodeDelegate:(WebKit::ScrollingTreeScrollingNodeDelegateIOS*)delegate; |
| |
| @end |
| |
| #endif // PLATFORM(IOS_FAMILY) && ENABLE(ASYNC_SCROLLING) |