104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Bitmap.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/HTMLVideoElement.h>
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#include <LibWeb/HTML/VideoTrack.h>
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#include <LibWeb/Layout/VideoBox.h>
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#include <LibWeb/Platform/Timer.h>
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namespace Web::HTML {
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// FIXME: Determine a reasonable framerate somehow. For now, this is roughly 24fps.
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static constexpr int s_frame_delay_ms = 42;
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HTMLVideoElement::HTMLVideoElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLMediaElement(document, move(qualified_name))
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{
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}
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HTMLVideoElement::~HTMLVideoElement() = default;
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JS::ThrowCompletionOr<void> HTMLVideoElement::initialize(JS::Realm& realm)
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{
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MUST_OR_THROW_OOM(Base::initialize(realm));
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set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLVideoElementPrototype>(realm, "HTMLVideoElement"));
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return {};
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}
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void HTMLVideoElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_video_track);
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}
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JS::GCPtr<Layout::Node> HTMLVideoElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
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{
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return heap().allocate_without_realm<Layout::VideoBox>(document(), *this, move(style));
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}
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Layout::VideoBox* HTMLVideoElement::layout_node()
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{
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return static_cast<Layout::VideoBox*>(Node::layout_node());
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}
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Layout::VideoBox const* HTMLVideoElement::layout_node() const
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{
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return static_cast<Layout::VideoBox const*>(Node::layout_node());
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-video-videowidth
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u32 HTMLVideoElement::video_width() const
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{
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// The videoWidth IDL attribute must return the intrinsic width of the video in CSS pixels. The videoHeight IDL
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// attribute must return the intrinsic height of the video in CSS pixels. If the element's readyState attribute
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// is HAVE_NOTHING, then the attributes must return 0.
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if (ready_state() == ReadyState::HaveNothing)
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return 0;
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return m_video_width;
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-video-videoheight
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u32 HTMLVideoElement::video_height() const
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{
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// The videoWidth IDL attribute must return the intrinsic width of the video in CSS pixels. The videoHeight IDL
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// attribute must return the intrinsic height of the video in CSS pixels. If the element's readyState attribute
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// is HAVE_NOTHING, then the attributes must return 0.
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if (ready_state() == ReadyState::HaveNothing)
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return 0;
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return m_video_height;
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}
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void HTMLVideoElement::set_video_track(JS::GCPtr<HTML::VideoTrack> video_track)
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{
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set_needs_style_update(true);
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document().set_needs_layout();
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if (m_video_timer)
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m_video_timer->stop();
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m_video_track = video_track;
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if (!m_video_track)
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return;
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if (!m_video_timer) {
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m_video_timer = Platform::Timer::create_repeating(s_frame_delay_ms, [this]() {
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if (auto frame = m_video_track->next_frame())
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m_current_frame = move(frame);
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else
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m_video_timer->stop();
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layout_node()->set_needs_display();
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});
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}
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m_video_timer->start();
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}
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}
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