1 /*
2 * Copyright (c) 2023-2024 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 "bridge/declarative_frontend/jsview/js_scrollable_base.h"
17
18 #include "bridge/declarative_frontend/jsview/js_view_common_def.h"
19 #include "core/components_ng/pattern/scrollable/scrollable_model_ng.h"
20
21 namespace OHOS::Ace::Framework {
JSFlingSpeedLimit(const JSCallbackInfo & info)22 void JSScrollableBase::JSFlingSpeedLimit(const JSCallbackInfo& info)
23 {
24 double max = -1.0;
25 if (!JSViewAbstract::ParseJsDouble(info[0], max)) {
26 return;
27 }
28 NG::ScrollableModelNG::SetMaxFlingSpeed(max);
29 }
30
JsOnWillScroll(const JSCallbackInfo & args)31 void JSScrollableBase::JsOnWillScroll(const JSCallbackInfo& args)
32 {
33 if (args.Length() <= 0) {
34 return;
35 }
36 if (args[0]->IsFunction()) {
37 auto onScroll = [execCtx = args.GetExecutionContext(), func = JSRef<JSFunc>::Cast(args[0])](
38 const CalcDimension& scrollOffset, const ScrollState& scrollState,
39 ScrollSource scrollSource) {
40 auto params = ConvertToJSValues(scrollOffset, scrollState, scrollSource);
41 ScrollFrameResult scrollRes { .offset = scrollOffset };
42 JAVASCRIPT_EXECUTION_SCOPE_WITH_CHECK(execCtx, scrollRes);
43 auto result = func->Call(JSRef<JSObject>(), params.size(), params.data());
44 if (result.IsEmpty()) {
45 return scrollRes;
46 }
47
48 if (!result->IsObject()) {
49 return scrollRes;
50 }
51
52 auto resObj = JSRef<JSObject>::Cast(result);
53 auto dxRemainValue = resObj->GetProperty("offsetRemain");
54 if (dxRemainValue->IsNumber()) {
55 scrollRes.offset = Dimension(dxRemainValue->ToNumber<float>(), DimensionUnit::VP);
56 }
57 return scrollRes;
58 };
59 NG::ScrollableModelNG::SetOnWillScroll(std::move(onScroll));
60 } else {
61 NG::ScrollableModelNG::SetOnWillScroll(nullptr);
62 }
63 }
64
JsOnDidScroll(const JSCallbackInfo & args)65 void JSScrollableBase::JsOnDidScroll(const JSCallbackInfo& args)
66 {
67 if (args.Length() > 0 && args[0]->IsFunction()) {
68 auto onScroll = [execCtx = args.GetExecutionContext(), func = JSRef<JSFunc>::Cast(args[0])](
69 const CalcDimension& scrollOffset, const ScrollState& scrollState) {
70 JAVASCRIPT_EXECUTION_SCOPE_WITH_CHECK(execCtx);
71 auto params = ConvertToJSValues(scrollOffset, scrollState);
72 func->Call(JSRef<JSObject>(), params.size(), params.data());
73 };
74 NG::ScrollableModelNG::SetOnDidScroll(std::move(onScroll));
75 }
76 }
77
JSBind(BindingTarget globalObj)78 void JSScrollableBase::JSBind(BindingTarget globalObj)
79 {
80 MethodOptions opt = MethodOptions::NONE;
81 JSClass<JSScrollableBase>::Declare("JSContainerBase");
82 JSClass<JSScrollableBase>::StaticMethod("flingSpeedLimit", &JSScrollableBase::JSFlingSpeedLimit, opt);
83 JSClass<JSScrollableBase>::StaticMethod("onWillScroll", &JSScrollableBase::JsOnWillScroll);
84 JSClass<JSScrollableBase>::StaticMethod("onDidScroll", &JSScrollableBase::JsOnDidScroll);
85 JSClass<JSScrollableBase>::InheritAndBind<JSContainerBase>(globalObj);
86 }
87 } // namespace OHOS::Ace::Framework
88