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 LOGD("not support refresh");
42 return false;
43 }
44 refresh->SetHasScrollableChild(true);
45 if ((LessOrEqual(currentOffset, 0.0) && source == SCROLL_FROM_UPDATE) || inLinkRefresh_) {
46 refresh->UpdateScrollableOffset(delta);
47 inLinkRefresh_ = true;
48 }
49 if (refresh->GetStatus() != RefreshStatus::INACTIVE) {
50 return true;
51 }
52 return false;
53 }
54
InitializeScrollable(const RefPtr<Scrollable> & scrollable)55 void RenderRefreshTarget::InitializeScrollable(const RefPtr<Scrollable>& scrollable)
56 {
57 if (!scrollable) {
58 return;
59 }
60 scrollable->SetDragEndCallback([weakRefreshBase = AceType::WeakClaim(this)]() {
61 auto refreshBase = weakRefreshBase.Upgrade();
62 if (refreshBase) {
63 auto refresh = refreshBase->refreshParent_.Upgrade();
64 if (refresh && refreshBase->inLinkRefresh_) {
65 refresh->HandleDragEnd();
66 refreshBase->inLinkRefresh_ = false;
67 }
68 }
69 });
70 scrollable->SetDragCancelCallback([weakRefreshBase = AceType::WeakClaim(this)]() {
71 auto refreshBase = weakRefreshBase.Upgrade();
72 if (refreshBase) {
73 auto refresh = refreshBase->refreshParent_.Upgrade();
74 if (refresh && refreshBase->inLinkRefresh_) {
75 refresh->HandleDragCancel();
76 refreshBase->inLinkRefresh_ = false;
77 }
78 }
79 });
80 }
81
82 } // namespace OHOS::Ace
83