mirror of
https://github.com/SerenityOS/serenity
synced 2026-05-01 03:47:48 +02:00
4103a9cfd2
This avoids an unnecessary lossy conversion for the current time from double to i32. And avoids an UBSAN failure on macOS that's dependent on the current uptime. (cherry picked from commit 55c1b5d1f4d7c82f0a68323260cb2e0f7de2faae, amended to fix a typo in the commit message)
65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
/*
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* Copyright (c) 2022, 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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#pragma once
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#include <AK/Function.h>
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#include <AK/HashMap.h>
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#include <AK/IDAllocator.h>
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#include <LibCore/Timer.h>
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#include <LibWeb/HTML/EventLoop/EventLoop.h>
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namespace Web::HTML {
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struct AnimationFrameCallbackDriver {
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using Callback = Function<void(double)>;
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AnimationFrameCallbackDriver()
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{
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m_timer = Core::Timer::create_single_shot(16, [] {
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HTML::main_thread_event_loop().schedule();
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});
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}
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i32 add(Callback handler)
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{
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auto id = m_id_allocator.allocate();
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m_callbacks.set(id, move(handler));
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if (!m_timer->is_active())
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m_timer->start();
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return id;
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}
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bool remove(i32 id)
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{
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auto it = m_callbacks.find(id);
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if (it == m_callbacks.end())
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return false;
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m_callbacks.remove(it);
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m_id_allocator.deallocate(id);
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return true;
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}
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void run(double now)
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{
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auto taken_callbacks = move(m_callbacks);
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for (auto& [id, callback] : taken_callbacks)
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callback(now);
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}
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bool has_callbacks() const
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{
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return !m_callbacks.is_empty();
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}
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private:
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OrderedHashMap<i32, Callback> m_callbacks;
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IDAllocator m_id_allocator;
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RefPtr<Core::Timer> m_timer;
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};
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}
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