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https://github.com/LadybirdBrowser/ladybird.git
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41b4292447
This is enough for Firefox to display the Accessibility tab, containing our accessibility tree which can be inspected. Most information is blank for now. There's quite a bit of duplication between AccessibilityWalkerActor and WalkerActor - it might be worth trying to make a base class once the details are figured out. Frustratingly, the two don't work quite the same: for a lot of messages that would be sent to WalkerActor, the accessibility equivalent is sent to the AccessibilityNodeActor instead. Co-authored-by: Tim Flynn <trflynn89@pm.me>
122 lines
3.3 KiB
C++
122 lines
3.3 KiB
C++
/*
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* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Debug.h>
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#include <AK/JsonObject.h>
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#include <AK/JsonValue.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/Socket.h>
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#include <LibCore/TCPServer.h>
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#include <LibDevTools/Actors/DeviceActor.h>
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#include <LibDevTools/Actors/ParentAccessibilityActor.h>
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#include <LibDevTools/Actors/PreferenceActor.h>
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#include <LibDevTools/Actors/ProcessActor.h>
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#include <LibDevTools/Actors/TabActor.h>
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#include <LibDevTools/Connection.h>
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#include <LibDevTools/DevToolsServer.h>
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namespace DevTools {
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static u64 s_server_count = 0;
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ErrorOr<NonnullOwnPtr<DevToolsServer>> DevToolsServer::create(DevToolsDelegate& delegate, u16 port)
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{
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auto address = IPv4Address::from_string("0.0.0.0"sv).release_value();
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auto server = TRY(Core::TCPServer::try_create());
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TRY(server->listen(address, port, Core::TCPServer::AllowAddressReuse::Yes));
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return adopt_own(*new DevToolsServer(delegate, move(server)));
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}
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DevToolsServer::DevToolsServer(DevToolsDelegate& delegate, NonnullRefPtr<Core::TCPServer> server)
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: m_server(move(server))
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, m_delegate(delegate)
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, m_server_id(s_server_count++)
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{
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m_server->on_ready_to_accept = [this]() {
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if (auto result = on_new_client(); result.is_error())
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warnln("Failed to accept DevTools client: {}", result.error());
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};
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}
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DevToolsServer::~DevToolsServer() = default;
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void DevToolsServer::refresh_tab_list()
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{
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if (!m_root_actor)
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return;
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m_actor_registry.remove_all_matching([](auto const&, auto const& actor) {
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return is<TabActor>(*actor);
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});
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m_root_actor->send_tab_list_changed_message();
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}
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ErrorOr<void> DevToolsServer::on_new_client()
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{
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if (m_connection)
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return Error::from_string_literal("Only one active DevTools connection is currently allowed");
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auto client = TRY(m_server->accept());
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auto buffered_socket = TRY(Core::BufferedTCPSocket::create(move(client)));
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m_connection = Connection::create(move(buffered_socket));
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m_connection->on_connection_closed = [this]() {
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close_connection();
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};
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m_connection->on_message_received = [this](auto message) {
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on_message_received(move(message));
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};
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m_root_actor = register_actor<RootActor>();
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register_actor<DeviceActor>();
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register_actor<PreferenceActor>();
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register_actor<ProcessActor>(ProcessDescription { .is_parent = true });
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register_actor<ParentAccessibilityActor>();
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return {};
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}
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void DevToolsServer::on_message_received(JsonObject message)
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{
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auto to = message.get_string("to"sv);
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if (!to.has_value()) {
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m_root_actor->send_missing_parameter_error({}, "to"sv);
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return;
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}
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auto actor = m_actor_registry.find(*to);
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if (actor == m_actor_registry.end()) {
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m_root_actor->send_unknown_actor_error({}, *to);
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return;
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}
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auto type = message.get_string("type"sv);
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if (!type.has_value()) {
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actor->value->send_missing_parameter_error({}, "type"sv);
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return;
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}
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actor->value->message_received(*type, move(message));
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}
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void DevToolsServer::close_connection()
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{
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dbgln_if(DEVTOOLS_DEBUG, "Lost connection to the DevTools client");
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Core::deferred_invoke([this]() {
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m_connection = nullptr;
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m_actor_registry.clear();
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m_root_actor = nullptr;
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});
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}
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}
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