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https://github.com/RGBCube/serenity
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bf4e2f3e9c
Introduces `internals.hitTest(x, y)` that is going to allow us write tests for hit testing :)
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/*
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* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/VM.h>
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#include <LibWeb/Bindings/InternalsPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/Internals/Internals.h>
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#include <LibWeb/Painting/PaintableBox.h>
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namespace Web::Internals {
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Internals::Internals(JS::Realm& realm)
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: Bindings::PlatformObject(realm)
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{
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}
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Internals::~Internals() = default;
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void Internals::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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Object::set_prototype(&Bindings::ensure_web_prototype<Bindings::InternalsPrototype>(realm, "Internals"));
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}
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void Internals::gc()
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{
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vm().heap().collect_garbage();
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}
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JS::Object* Internals::hit_test(double x, double y)
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{
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auto* active_document = global_object().browsing_context()->top_level_browsing_context().active_document();
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// NOTE: Force a layout update just before hit testing. This is because the current layout tree, which is required
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// for stacking context traversal, might not exist if this call occurs between the tear_down_layout_tree()
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// and update_layout() calls
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active_document->update_layout();
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auto result = active_document->paintable_box()->hit_test({ x, y }, Painting::HitTestType::Exact);
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if (result.has_value()) {
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auto hit_tеsting_result = JS::Object::create(realm(), nullptr);
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hit_tеsting_result->define_direct_property("node", result->dom_node(), JS::default_attributes);
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hit_tеsting_result->define_direct_property("indexInNode", JS::Value(result->index_in_node), JS::default_attributes);
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return hit_tеsting_result;
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}
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return nullptr;
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}
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}
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