1/*
2 * Copyright (C) 2018 Igalia S.L.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer in the documentation and/or other materials provided
13 * with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "config.h"
29#include "ScrollingCoordinatorNicosia.h"
30
31#if ENABLE(ASYNC_SCROLLING) && USE(NICOSIA)
32
33#include "ScrollingThread.h"
34#include "ScrollingTreeNicosia.h"
35
36namespace WebCore {
37
38Ref<ScrollingCoordinator> ScrollingCoordinator::create(Page* page)
39{
40 return adoptRef(*new ScrollingCoordinatorNicosia(page));
41}
42
43ScrollingCoordinatorNicosia::ScrollingCoordinatorNicosia(Page* page)
44 : AsyncScrollingCoordinator(page)
45 , m_scrollingStateTreeCommitterTimer(RunLoop::main(), this, &ScrollingCoordinatorNicosia::commitTreeState)
46{
47 setScrollingTree(ScrollingTreeNicosia::create(*this));
48}
49
50ScrollingCoordinatorNicosia::~ScrollingCoordinatorNicosia()
51{
52 ASSERT(!scrollingTree());
53}
54
55void ScrollingCoordinatorNicosia::pageDestroyed()
56{
57 AsyncScrollingCoordinator::pageDestroyed();
58
59 m_scrollingStateTreeCommitterTimer.stop();
60
61 releaseScrollingTree();
62}
63
64void ScrollingCoordinatorNicosia::commitTreeStateIfNeeded()
65{
66 commitTreeState();
67 m_scrollingStateTreeCommitterTimer.stop();
68}
69
70ScrollingEventResult ScrollingCoordinatorNicosia::handleWheelEvent(FrameView&, const PlatformWheelEvent&)
71{
72 return ScrollingEventResult::DidNotHandleEvent;
73}
74
75void ScrollingCoordinatorNicosia::scheduleTreeStateCommit()
76{
77 if (!m_scrollingStateTreeCommitterTimer.isActive())
78 m_scrollingStateTreeCommitterTimer.startOneShot(0_s);
79}
80
81void ScrollingCoordinatorNicosia::commitTreeState()
82{
83 if (!scrollingStateTree()->hasChangedProperties())
84 return;
85
86 RefPtr<ThreadedScrollingTree> threadedScrollingTree = downcast<ThreadedScrollingTree>(scrollingTree());
87
88 auto treeState = scrollingStateTree()->commit(LayerRepresentation::PlatformLayerRepresentation);
89 ScrollingThread::dispatch([threadedScrollingTree, treeState = WTFMove(treeState)]() mutable {
90 threadedScrollingTree->commitTreeState(WTFMove(treeState));
91 });
92}
93
94} // namespace WebCore
95
96#endif // ENABLE(ASYNC_SCROLLING) && USE(NICOSIA)
97