| /* |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "RemoteScrollingTree.h" |
| |
| #if ENABLE(ASYNC_SCROLLING) |
| |
| #include "RemoteLayerTreeHost.h" |
| #include "RemoteScrollingCoordinatorProxy.h" |
| #include <WebCore/ScrollingTreeFixedNode.h> |
| #include <WebCore/ScrollingTreeFrameHostingNode.h> |
| #include <WebCore/ScrollingTreeOverflowScrollProxyNode.h> |
| #include <WebCore/ScrollingTreePositionedNode.h> |
| #include <WebCore/ScrollingTreeStickyNode.h> |
| |
| #if PLATFORM(IOS_FAMILY) |
| #include "ScrollingTreeFrameScrollingNodeRemoteIOS.h" |
| #include "ScrollingTreeOverflowScrollingNodeIOS.h" |
| #else |
| #include "ScrollingTreeFrameScrollingNodeRemoteMac.h" |
| #include "ScrollingTreeOverflowScrollingNodeRemoteMac.h" |
| #endif |
| |
| namespace WebKit { |
| using namespace WebCore; |
| |
| Ref<RemoteScrollingTree> RemoteScrollingTree::create(RemoteScrollingCoordinatorProxy& scrollingCoordinator) |
| { |
| return adoptRef(*new RemoteScrollingTree(scrollingCoordinator)); |
| } |
| |
| RemoteScrollingTree::RemoteScrollingTree(RemoteScrollingCoordinatorProxy& scrollingCoordinator) |
| : m_scrollingCoordinatorProxy(scrollingCoordinator) |
| { |
| } |
| |
| RemoteScrollingTree::~RemoteScrollingTree() |
| { |
| } |
| |
| ScrollingEventResult RemoteScrollingTree::tryToHandleWheelEvent(const PlatformWheelEvent& wheelEvent) |
| { |
| if (shouldHandleWheelEventSynchronously(wheelEvent)) |
| return ScrollingEventResult::SendToMainThread; |
| |
| if (willWheelEventStartSwipeGesture(wheelEvent)) |
| return ScrollingEventResult::DidNotHandleEvent; |
| |
| handleWheelEvent(wheelEvent); |
| return ScrollingEventResult::DidHandleEvent; |
| } |
| |
| #if PLATFORM(MAC) |
| void RemoteScrollingTree::handleWheelEventPhase(PlatformWheelEventPhase phase) |
| { |
| // FIXME: hand off to m_scrollingCoordinatorProxy? |
| } |
| #endif |
| |
| #if PLATFORM(IOS_FAMILY) |
| void RemoteScrollingTree::scrollingTreeNodeWillStartPanGesture() |
| { |
| m_scrollingCoordinatorProxy.scrollingTreeNodeWillStartPanGesture(); |
| } |
| |
| void RemoteScrollingTree::scrollingTreeNodeWillStartScroll() |
| { |
| m_scrollingCoordinatorProxy.scrollingTreeNodeWillStartScroll(); |
| } |
| |
| void RemoteScrollingTree::scrollingTreeNodeDidEndScroll() |
| { |
| m_scrollingCoordinatorProxy.scrollingTreeNodeDidEndScroll(); |
| } |
| |
| #endif |
| |
| void RemoteScrollingTree::scrollingTreeNodeDidScroll(ScrollingTreeScrollingNode& node, ScrollingLayerPositionAction scrollingLayerPositionAction) |
| { |
| Optional<FloatPoint> layoutViewportOrigin; |
| if (is<ScrollingTreeFrameScrollingNode>(node)) |
| layoutViewportOrigin = downcast<ScrollingTreeFrameScrollingNode>(node).layoutViewport().location(); |
| |
| m_scrollingCoordinatorProxy.scrollingTreeNodeDidScroll(node.scrollingNodeID(), node.currentScrollPosition(), layoutViewportOrigin, scrollingLayerPositionAction); |
| } |
| |
| void RemoteScrollingTree::scrollingTreeNodeRequestsScroll(ScrollingNodeID nodeID, const FloatPoint& scrollPosition, bool representsProgrammaticScroll) |
| { |
| m_scrollingCoordinatorProxy.scrollingTreeNodeRequestsScroll(nodeID, scrollPosition, representsProgrammaticScroll); |
| } |
| |
| Ref<ScrollingTreeNode> RemoteScrollingTree::createScrollingTreeNode(ScrollingNodeType nodeType, ScrollingNodeID nodeID) |
| { |
| switch (nodeType) { |
| case ScrollingNodeType::MainFrame: |
| case ScrollingNodeType::Subframe: |
| #if PLATFORM(IOS_FAMILY) |
| return ScrollingTreeFrameScrollingNodeRemoteIOS::create(*this, nodeType, nodeID); |
| #else |
| return ScrollingTreeFrameScrollingNodeRemoteMac::create(*this, nodeType, nodeID); |
| #endif |
| case ScrollingNodeType::FrameHosting: |
| return ScrollingTreeFrameHostingNode::create(*this, nodeID); |
| case ScrollingNodeType::Overflow: |
| #if PLATFORM(IOS_FAMILY) |
| return ScrollingTreeOverflowScrollingNodeIOS::create(*this, nodeID); |
| #else |
| return ScrollingTreeOverflowScrollingNodeRemoteMac::create(*this, nodeID); |
| #endif |
| case ScrollingNodeType::OverflowProxy: |
| return ScrollingTreeOverflowScrollProxyNode::create(*this, nodeID); |
| case ScrollingNodeType::Fixed: |
| return ScrollingTreeFixedNode::create(*this, nodeID); |
| case ScrollingNodeType::Sticky: |
| return ScrollingTreeStickyNode::create(*this, nodeID); |
| case ScrollingNodeType::Positioned: |
| return ScrollingTreePositionedNode::create(*this, nodeID); |
| } |
| ASSERT_NOT_REACHED(); |
| return ScrollingTreeFixedNode::create(*this, nodeID); |
| } |
| |
| void RemoteScrollingTree::currentSnapPointIndicesDidChange(ScrollingNodeID nodeID, unsigned horizontal, unsigned vertical) |
| { |
| m_scrollingCoordinatorProxy.currentSnapPointIndicesDidChange(nodeID, horizontal, vertical); |
| } |
| |
| void RemoteScrollingTree::handleMouseEvent(const WebCore::PlatformMouseEvent& event) |
| { |
| #if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC) |
| if (!rootNode()) |
| return; |
| static_cast<ScrollingTreeFrameScrollingNodeRemoteMac&>(*rootNode()).handleMouseEvent(event); |
| #else |
| UNUSED_PARAM(event); |
| #endif |
| } |
| |
| } // namespace WebKit |
| |
| #endif // ENABLE(ASYNC_SCROLLING) |