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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2016 The Chromium Authors | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| // Copyright (C) 2024-present The WebF authors. All rights reserved. | ||
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| #include "core/dom/intersection_observer.h" | ||
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| #include <algorithm> | ||
| #include <limits> | ||
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| #include "core/dom/element.h" | ||
| #include <native_value_converter.h> | ||
| #include "bindings/qjs/converter_impl.h" | ||
| #include "core/dom/intersection_observer_entry.h" | ||
| #include "core/dom/node.h" | ||
| #include "core/executing_context.h" | ||
| #include "qjs_intersection_observer_init.h" | ||
| #include "foundation/logging.h" | ||
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| namespace webf { | ||
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| IntersectionObserver* IntersectionObserver::Create(ExecutingContext* context, | ||
| const std::shared_ptr<QJSFunction>& function, | ||
| ExceptionState& exception_state) { | ||
| return MakeGarbageCollected<IntersectionObserver>(context, function); | ||
| } | ||
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| IntersectionObserver* IntersectionObserver::Create(ExecutingContext* context, | ||
| const std::shared_ptr<QJSFunction>& function, | ||
| const std::shared_ptr<IntersectionObserverInit>& observer_init, | ||
| ExceptionState& exception_state) { | ||
| return MakeGarbageCollected<IntersectionObserver>(context, function, observer_init); | ||
| } | ||
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| IntersectionObserver::IntersectionObserver(ExecutingContext* context, const std::shared_ptr<QJSFunction>& function) | ||
| : BindingObject(context->ctx()), function_(function) { | ||
| GetExecutingContext()->dartMethodPtr()->createBindingObject( | ||
| GetExecutingContext()->isDedicated(), GetExecutingContext()->contextId(), bindingObject(), | ||
| CreateBindingObjectType::kCreateIntersectionObserver, nullptr, 0); | ||
| } | ||
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| IntersectionObserver::IntersectionObserver(ExecutingContext* context, | ||
| const std::shared_ptr<QJSFunction>& function, | ||
| const std::shared_ptr<IntersectionObserverInit>& observer_init) | ||
| : BindingObject(context->ctx()), function_(function) { | ||
| if (observer_init->hasRoot()) { | ||
| root_ = observer_init->root(); | ||
| } | ||
| GetExecutingContext()->dartMethodPtr()->createBindingObject( | ||
| GetExecutingContext()->isDedicated(), GetExecutingContext()->contextId(), bindingObject(), | ||
| CreateBindingObjectType::kCreateIntersectionObserver, nullptr, 0); | ||
| } | ||
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| bool IntersectionObserver::RootIsValid() const { | ||
| return RootIsImplicit() || root(); | ||
| } | ||
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| void IntersectionObserver::observe(Element* target, ExceptionState& exception_state) { | ||
| if (!RootIsValid() || !target) | ||
| return; | ||
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| // TODO([email protected]): 通知dart，注册IntersectionObserver | ||
| GetExecutingContext()->uiCommandBuffer()->AddCommand(UICommand::kAddIntersectionObserver, nullptr, bindingObject(), | ||
| target->bindingObject()); | ||
| } | ||
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| void IntersectionObserver::unobserve(Element* target, ExceptionState& exception_state) { | ||
| if (!target) | ||
| return; | ||
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| GetExecutingContext()->uiCommandBuffer()->AddCommand(UICommand::kRemoveIntersectionObserver, nullptr, bindingObject(), | ||
| target->bindingObject()); | ||
| } | ||
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| void IntersectionObserver::disconnect(ExceptionState& exception_state) { | ||
| GetExecutingContext()->uiCommandBuffer()->AddCommand(UICommand::kDisconnectIntersectionObserver, nullptr, | ||
| bindingObject(), nullptr); | ||
| } | ||
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| // std::vector<Member<IntersectionObserverEntry>> IntersectionObserver::takeRecords(ExceptionState& exception_state) { | ||
| // std::vector<Member<IntersectionObserverEntry>> entries; | ||
| // for (auto& observation : observations_) | ||
| // observation->TakeRecords(entries); | ||
| // active_observations_.clear(); | ||
| // return entries; | ||
| // } | ||
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| // AtomicString IntersectionObserver::rootMargin() const { | ||
| // return StringifyMargin(RootMargin()); | ||
| // } | ||
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| // AtomicString IntersectionObserver::scrollMargin() const { | ||
| // return StringifyMargin(ScrollMargin()); | ||
| // } | ||
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| // using InvokeBindingMethodsFromDart = void (*)(NativeBindingObject* binding_object, | ||
| // int64_t profile_id, | ||
| // NativeValue* method, | ||
| // int32_t argc, | ||
| // NativeValue* argv, | ||
| // Dart_Handle dart_object, | ||
| // DartInvokeResultCallback result_callback); | ||
| NativeValue IntersectionObserver::HandleCallFromDartSide(const AtomicString& method, | ||
| int32_t argc, | ||
| const NativeValue* argv, | ||
| Dart_Handle dart_object) { | ||
| if (!GetExecutingContext() || !GetExecutingContext()->IsContextValid()) { | ||
| WEBF_LOG(ERROR) << "[IntersectionObserver]: HandleCallFromDartSide Context Valid" << std::endl; | ||
| return Native_NewNull(); | ||
| } | ||
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| WEBF_LOG(DEBUG) << "[IntersectionObserver]: HandleCallFromDartSide NativeValueConverter" << std::endl; | ||
| NativeValue native_entry_list = argv[0]; | ||
| std::vector<IntersectionObserverEntry*> entries = | ||
| NativeValueConverter<NativeTypeArray<NativeTypePointer<IntersectionObserverEntry>>>::FromNativeValue( | ||
| ctx(), native_entry_list); | ||
|
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| if (!entries.empty()) { | ||
| assert(function_ != nullptr); | ||
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| WEBF_LOG(DEBUG) << "[IntersectionObserver]: HandleCallFromDartSide To JSValue" << std::endl; | ||
| JSValue v = Converter<IDLSequence<IntersectionObserverEntry>>::ToValue(ctx(), entries); | ||
| ScriptValue arguments[] = {ScriptValue(ctx(), v), ToValue()}; | ||
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| JS_FreeValue(ctx(), v); | ||
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| WEBF_LOG(DEBUG) << "[IntersectionObserver]: HandleCallFromDartSide function_ Invoke" << std::endl; | ||
| function_->Invoke(ctx(), ToValue(), 2, arguments); | ||
| } else { | ||
| WEBF_LOG(ERROR) << "[IntersectionObserver]: HandleCallFromDartSide entries is empty"; | ||
| } | ||
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| return Native_NewNull(); | ||
| } | ||
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| void IntersectionObserver::Trace(GCVisitor* visitor) const { | ||
| BindingObject::Trace(visitor); | ||
| BindingObject::Trace(visitor); | ||
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| function_->Trace(visitor); | ||
| } | ||
|
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| } // namespace webf |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| // Copyright 2016 The Chromium Authors | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
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| // https://www.w3.org/TR/intersection-observer/#intersection-observer-interface | ||
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| // Copyright (C) 2024-present The WebF authors. All rights reserved. | ||
|
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| import {IntersectionObserverInit} from "./intersection_observer_init"; | ||
| import {IntersectionObserverEntry} from "./intersection_observer_entry"; | ||
| import {Node} from "./node"; | ||
| import {Element} from "./element"; | ||
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| //type IntersectionObserverCallback = (entries: IntersectionObserverEntry[], observer: IntersectionObserver) | ||
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| interface IntersectionObserver { | ||
| //new (callback: IntersectionObserverCallback, options?: IntersectionObserverInit): IntersectionObserver; | ||
| new(callback: Function, options?: IntersectionObserverInit): IntersectionObserver; | ||
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| //readonly root: Node | null; | ||
| //readonly rootMargin: string; | ||
| //readonly scrollMargin: string; | ||
| //readonly thresholds: number[]; | ||
| //readonly delay: number; | ||
| //readonly trackVisibility: boolean; | ||
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| observe(target: Element): void; | ||
| unobserve(target: Element): void; | ||
| disconnect(): void; | ||
| //takeRecords(): IntersectionObserverEntry[]; | ||
| } |
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