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			93 lines
		
	
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			93 lines
		
	
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include <AK/QuickSort.h>
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| #include <LibWeb/Bindings/Intrinsics.h>
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| #include <LibWeb/Bindings/PerformanceObserverEntryListPrototype.h>
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| #include <LibWeb/PerformanceTimeline/PerformanceEntry.h>
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| #include <LibWeb/PerformanceTimeline/PerformanceObserverEntryList.h>
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| #include <LibWeb/WebIDL/ExceptionOr.h>
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| 
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| namespace Web::PerformanceTimeline {
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| 
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| JS_DEFINE_ALLOCATOR(PerformanceObserverEntryList);
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| 
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| PerformanceObserverEntryList::PerformanceObserverEntryList(JS::Realm& realm, Vector<JS::NonnullGCPtr<PerformanceTimeline::PerformanceEntry>>&& entry_list)
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|     : Bindings::PlatformObject(realm)
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|     , m_entry_list(move(entry_list))
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| {
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| }
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| 
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| PerformanceObserverEntryList::~PerformanceObserverEntryList() = default;
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| 
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| void PerformanceObserverEntryList::initialize(JS::Realm& realm)
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| {
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|     Base::initialize(realm);
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|     set_prototype(&Bindings::ensure_web_prototype<Bindings::PerformanceObserverEntryListPrototype>(realm, "PerformanceObserverEntryList"_fly_string));
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| }
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| 
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| void PerformanceObserverEntryList::visit_edges(Cell::Visitor& visitor)
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| {
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|     Base::visit_edges(visitor);
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|     for (auto& entry : m_entry_list)
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|         visitor.visit(entry);
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| }
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| 
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| // https://www.w3.org/TR/performance-timeline/#dfn-filter-buffer-by-name-and-type
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| ErrorOr<Vector<JS::Handle<PerformanceTimeline::PerformanceEntry>>> filter_buffer_by_name_and_type(Vector<JS::NonnullGCPtr<PerformanceTimeline::PerformanceEntry>> const& buffer, Optional<String> name, Optional<String> type)
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| {
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|     // 1. Let result be an initially empty list.
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|     Vector<JS::Handle<PerformanceTimeline::PerformanceEntry>> result;
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| 
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|     // 2. For each PerformanceEntry entry in buffer, run the following steps:
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|     for (auto const& entry : buffer) {
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|         // 1. If type is not null and if type is not identical to entry's entryType attribute, continue to next entry.
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|         if (type.has_value() && type.value() != entry->entry_type())
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|             continue;
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| 
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|         // 2. If name is not null and if name is not identical to entry's name attribute, continue to next entry.
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|         if (name.has_value() && name.value() != entry->name())
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|             continue;
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| 
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|         // 3. append entry to result.
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|         TRY(result.try_append(entry));
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|     }
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| 
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|     // 3. Sort results's entries in chronological order with respect to startTime
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|     quick_sort(result, [](auto const& left_entry, auto const& right_entry) {
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|         return left_entry->start_time() < right_entry->start_time();
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|     });
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| 
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|     // 4. Return result.
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|     return result;
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| }
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| 
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| // https://w3c.github.io/performance-timeline/#dom-performanceobserverentrylist-getentries
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| WebIDL::ExceptionOr<Vector<JS::Handle<PerformanceTimeline::PerformanceEntry>>> PerformanceObserverEntryList::get_entries() const
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| {
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|     // Returns a PerformanceEntryList object returned by filter buffer by name and type algorithm with this's entry list,
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|     // name and type set to null.
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|     return TRY_OR_THROW_OOM(vm(), filter_buffer_by_name_and_type(m_entry_list, /* name= */ Optional<String> {}, /* type= */ Optional<String> {}));
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| }
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| 
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| // https://w3c.github.io/performance-timeline/#dom-performanceobserverentrylist-getentriesbytype
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| WebIDL::ExceptionOr<Vector<JS::Handle<PerformanceTimeline::PerformanceEntry>>> PerformanceObserverEntryList::get_entries_by_type(String const& type) const
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| {
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|     // Returns a PerformanceEntryList object returned by filter buffer by name and type algorithm with this's entry list,
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|     // name set to null, and type set to the method's input type parameter.
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|     return TRY_OR_THROW_OOM(vm(), filter_buffer_by_name_and_type(m_entry_list, /* name= */ Optional<String> {}, type));
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| }
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| 
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| // https://w3c.github.io/performance-timeline/#dom-performanceobserverentrylist-getentriesbyname
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| WebIDL::ExceptionOr<Vector<JS::Handle<PerformanceTimeline::PerformanceEntry>>> PerformanceObserverEntryList::get_entries_by_name(String const& name, Optional<String> type) const
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| {
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|     // Returns a PerformanceEntryList object returned by filter buffer by name and type algorithm with this's entry list,
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|     // name set to the method input name parameter, and type set to null if optional entryType is omitted, or set to the
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|     // method's input type parameter otherwise.
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|     return TRY_OR_THROW_OOM(vm(), filter_buffer_by_name_and_type(m_entry_list, name, type));
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| }
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| 
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| }
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