mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-11-03 23:00:58 +00:00
4ca330adef
If event loop is already executing rendering task, we should not start the next rendering task until the current one is finished. Fixes https://github.com/LadybirdBrowser/ladybird/issues/3717
104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2021-2024, Andreas Kling <andreas@ladybird.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibGC/RootVector.h>
|
|
#include <LibWeb/HTML/EventLoop/EventLoop.h>
|
|
#include <LibWeb/HTML/EventLoop/TaskQueue.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
GC_DEFINE_ALLOCATOR(TaskQueue);
|
|
|
|
TaskQueue::TaskQueue(HTML::EventLoop& event_loop)
|
|
: m_event_loop(event_loop)
|
|
{
|
|
}
|
|
|
|
TaskQueue::~TaskQueue() = default;
|
|
|
|
void TaskQueue::visit_edges(Visitor& visitor)
|
|
{
|
|
Base::visit_edges(visitor);
|
|
visitor.visit(m_event_loop);
|
|
visitor.visit(m_tasks);
|
|
}
|
|
|
|
void TaskQueue::add(GC::Ref<Task> task)
|
|
{
|
|
m_tasks.append(task);
|
|
m_event_loop->schedule();
|
|
}
|
|
|
|
GC::Ptr<Task> TaskQueue::take_first_runnable()
|
|
{
|
|
if (m_event_loop->execution_paused())
|
|
return nullptr;
|
|
|
|
for (size_t i = 0; i < m_tasks.size(); ++i) {
|
|
if (m_event_loop->running_rendering_task() && m_tasks[i]->source() == Task::Source::Rendering)
|
|
continue;
|
|
if (m_tasks[i]->is_runnable())
|
|
return m_tasks.take(i);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool TaskQueue::has_runnable_tasks() const
|
|
{
|
|
if (m_event_loop->execution_paused())
|
|
return false;
|
|
|
|
for (auto& task : m_tasks) {
|
|
if (m_event_loop->running_rendering_task() && task->source() == Task::Source::Rendering)
|
|
continue;
|
|
if (task->is_runnable())
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void TaskQueue::remove_tasks_matching(Function<bool(HTML::Task const&)> filter)
|
|
{
|
|
m_tasks.remove_all_matching([&](auto& task) {
|
|
return filter(*task);
|
|
});
|
|
}
|
|
|
|
GC::RootVector<GC::Ref<Task>> TaskQueue::take_tasks_matching(Function<bool(HTML::Task const&)> filter)
|
|
{
|
|
GC::RootVector<GC::Ref<Task>> matching_tasks(heap());
|
|
|
|
for (size_t i = 0; i < m_tasks.size();) {
|
|
auto& task = m_tasks.at(i);
|
|
|
|
if (filter(*task)) {
|
|
matching_tasks.append(task);
|
|
m_tasks.remove(i);
|
|
} else {
|
|
++i;
|
|
}
|
|
}
|
|
|
|
return matching_tasks;
|
|
}
|
|
|
|
Task const* TaskQueue::last_added_task() const
|
|
{
|
|
if (m_tasks.is_empty())
|
|
return nullptr;
|
|
return m_tasks.last();
|
|
}
|
|
|
|
bool TaskQueue::has_rendering_tasks() const
|
|
{
|
|
for (auto const& task : m_tasks) {
|
|
if (task->source() == Task::Source::Rendering)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|