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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Badge.h>
#include <AK/SharedBuffer.h>
#include <Clipboard/ClientConnection.h>
#include <Clipboard/ClipboardClientEndpoint.h>
#include <Clipboard/Storage.h>
namespace Clipboard {
static HashMap<int, RefPtr<ClientConnection>> s_connections;
void ClientConnection::for_each_client(Function<void(ClientConnection&)> callback)
{
for (auto& it : s_connections) {
callback(*it.value);
}
}
ClientConnection::ClientConnection(Core::LocalSocket& socket, int client_id)
: IPC::ClientConnection<ClipboardServerEndpoint>(*this, socket, client_id)
{
s_connections.set(client_id, *this);
}
ClientConnection::~ClientConnection()
{
}
void ClientConnection::die()
{
s_connections.remove(client_id());
}
OwnPtr<Messages::ClipboardServer::GreetResponse> ClientConnection::handle(const Messages::ClipboardServer::Greet&)
{
return make<Messages::ClipboardServer::GreetResponse>(client_id());
}
OwnPtr<Messages::ClipboardServer::SetClipboardDataResponse> ClientConnection::handle(const Messages::ClipboardServer::SetClipboardData& message)
{
auto shared_buffer = SharedBuffer::create_from_shbuf_id(message.shbuf_id());
if (!shared_buffer) {
did_misbehave("SetClipboardData: Bad shared buffer ID");
return nullptr;
}
Storage::the().set_data(*shared_buffer, message.data_size(), message.mime_type());
return make<Messages::ClipboardServer::SetClipboardDataResponse>();
}
OwnPtr<Messages::ClipboardServer::GetClipboardDataResponse> ClientConnection::handle(const Messages::ClipboardServer::GetClipboardData&)
{
auto& storage = Storage::the();
i32 shbuf_id = -1;
if (storage.data_size()) {
// FIXME: Optimize case where an app is copy/pasting within itself.
// We can just reuse the SharedBuffer then, since it will have the same peer PID.
// It would be even nicer if a SharedBuffer could have an arbitrary number of clients..
RefPtr<SharedBuffer> shared_buffer = SharedBuffer::create_with_size(storage.data_size());
ASSERT(shared_buffer);
memcpy(shared_buffer->data(), storage.data(), storage.data_size());
shared_buffer->seal();
shared_buffer->share_with(client_pid());
shbuf_id = shared_buffer->shbuf_id();
// FIXME: This is a workaround for the fact that SharedBuffers will go away if neither side is retaining them.
// After we respond to GetClipboardData, we have to wait for the client to ref the buffer on his side.
m_last_sent_buffer = move(shared_buffer);
}
return make<Messages::ClipboardServer::GetClipboardDataResponse>(shbuf_id, storage.data_size(), storage.mime_type());
}
void ClientConnection::notify_about_clipboard_change()
{
post_message(Messages::ClipboardClient::ClipboardDataChanged(Storage::the().mime_type()));
}
}
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