f87041bf3a
Resulting in a massive rename across almost everywhere! Alongside the namespace change, we now have the following names: * JS::NonnullGCPtr -> GC::Ref * JS::GCPtr -> GC::Ptr * JS::HeapFunction -> GC::Function * JS::CellImpl -> GC::Cell * JS::Handle -> GC::Root
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/DOM/EventTarget.h>
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namespace Web::DOM {
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// https://w3c.github.io/selection-api/#dfn-has-scheduled-selectionchange-event
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template<typename T>
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concept SelectionChangeTarget = DerivedFrom<T, EventTarget> && requires(T t) {
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{ t.has_scheduled_selectionchange_event() } -> SameAs<bool>;
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{ t.set_scheduled_selectionchange_event(bool()) } -> SameAs<void>;
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};
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// https://w3c.github.io/selection-api/#scheduling-selectionhange-event
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template<SelectionChangeTarget T>
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void schedule_a_selectionchange_event(T& target, Document& document)
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{
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// 1. If target's has scheduled selectionchange event is true, abort these steps.
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if (target.has_scheduled_selectionchange_event())
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return;
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// AD-HOC (https://github.com/w3c/selection-api/issues/338):
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// Set target's has scheduled selectionchange event to true
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target.set_scheduled_selectionchange_event(true);
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// 2. Queue a task on the user interaction task source to fire a selectionchange event on
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// target.
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queue_global_task(HTML::Task::Source::UserInteraction, relevant_global_object(document), GC::create_function(document.heap(), [&] {
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fire_a_selectionchange_event(target, document);
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}));
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}
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// https://w3c.github.io/selection-api/#firing-selectionhange-event
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template<SelectionChangeTarget T>
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void fire_a_selectionchange_event(T& target, Document& document)
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{
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// 1. Set target's has scheduled selectionchange event to false.
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target.set_scheduled_selectionchange_event(false);
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// 2. If target is an element, fire an event named selectionchange, which bubbles and not
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// cancelable, at target.
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// 3. Otherwise, if target is a document, fire an event named selectionchange, which does not
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// bubble and not cancelable, at target.
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EventInit event_init;
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event_init.bubbles = DerivedFrom<T, Element>;
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event_init.cancelable = false;
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auto event = DOM::Event::create(document.realm(), HTML::EventNames::selectionchange, event_init);
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target.dispatch_event(event);
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}
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}
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