1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "core/components/refresh/render_refresh_target.h"
17
18 namespace OHOS::Ace {
19
FindRefreshParent(const WeakPtr<RenderNode> & node)20 void RenderRefreshTarget::FindRefreshParent(const WeakPtr<RenderNode>& node)
21 {
22 auto childNode = node.Upgrade();
23 if (!childNode) {
24 return;
25 }
26 auto parent = childNode->GetParent().Upgrade();
27 while (parent) {
28 auto refresh = AceType::DynamicCast<RenderRefresh>(parent);
29 if (refresh) {
30 refreshParent_ = AceType::WeakClaim(AceType::RawPtr(refresh));
31 break;
32 }
33 parent = parent->GetParent().Upgrade();
34 }
35 }
36
HandleRefreshEffect(double delta,int32_t source,double currentOffset)37 bool RenderRefreshTarget::HandleRefreshEffect(double delta, int32_t source, double currentOffset)
38 {
39 auto refresh = refreshParent_.Upgrade();
40 if (!refresh) {
41 return false;
42 }
43 refresh->SetHasScrollableChild(true);
44 if ((LessOrEqual(currentOffset, 0.0) && source == SCROLL_FROM_UPDATE) || inLinkRefresh_) {
45 refresh->UpdateScrollableOffset(delta);
46 inLinkRefresh_ = true;
47 }
48 if (refresh->GetStatus() != RefreshStatus::INACTIVE) {
49 return true;
50 }
51 return false;
52 }
53
InitializeScrollable(const RefPtr<Scrollable> & scrollable)54 void RenderRefreshTarget::InitializeScrollable(const RefPtr<Scrollable>& scrollable)
55 {
56 if (!scrollable) {
57 return;
58 }
59 scrollable->SetDragEndCallback([weakRefreshBase = AceType::WeakClaim(this)]() {
60 auto refreshBase = weakRefreshBase.Upgrade();
61 if (refreshBase) {
62 auto refresh = refreshBase->refreshParent_.Upgrade();
63 if (refresh && refreshBase->inLinkRefresh_) {
64 refresh->HandleDragEnd();
65 refreshBase->inLinkRefresh_ = false;
66 }
67 }
68 });
69 scrollable->SetDragCancelCallback([weakRefreshBase = AceType::WeakClaim(this)]() {
70 auto refreshBase = weakRefreshBase.Upgrade();
71 if (refreshBase) {
72 auto refresh = refreshBase->refreshParent_.Upgrade();
73 if (refresh && refreshBase->inLinkRefresh_) {
74 refresh->HandleDragCancel();
75 refreshBase->inLinkRefresh_ = false;
76 }
77 }
78 });
79 }
80
81 } // namespace OHOS::Ace
82