ladybird/Userland/Libraries/LibGUI/Clipboard.cpp
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

139 lines
4.3 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Badge.h>
#include <Clipboard/ClipboardClientEndpoint.h>
#include <Clipboard/ClipboardServerEndpoint.h>
#include <LibGUI/Clipboard.h>
#include <LibIPC/ServerConnection.h>
namespace GUI {
class ClipboardServerConnection : public IPC::ServerConnection<ClipboardClientEndpoint, ClipboardServerEndpoint>
, public ClipboardClientEndpoint {
C_OBJECT(ClipboardServerConnection);
public:
virtual void handshake() override
{
send_sync<Messages::ClipboardServer::Greet>();
}
private:
ClipboardServerConnection()
: IPC::ServerConnection<ClipboardClientEndpoint, ClipboardServerEndpoint>(*this, "/tmp/portal/clipboard")
{
}
virtual void handle(const Messages::ClipboardClient::ClipboardDataChanged&) override;
};
Clipboard& Clipboard::the()
{
static Clipboard* s_the;
if (!s_the)
s_the = new Clipboard;
return *s_the;
}
ClipboardServerConnection* s_connection;
static ClipboardServerConnection& connection()
{
return *s_connection;
}
void Clipboard::initialize(Badge<Application>)
{
s_connection = &ClipboardServerConnection::construct().leak_ref();
}
Clipboard::Clipboard()
{
}
Clipboard::DataAndType Clipboard::data_and_type() const
{
auto response = connection().send_sync<Messages::ClipboardServer::GetClipboardData>();
if (!response->data().is_valid())
return {};
auto data = ByteBuffer::copy(response->data().data<void>(), response->data().size());
auto type = response->mime_type();
auto metadata = response->metadata().entries();
return { data, type, metadata };
}
void Clipboard::set_data(ReadonlyBytes data, const String& type, const HashMap<String, String>& metadata)
{
auto buffer = Core::AnonymousBuffer::create_with_size(data.size());
if (!buffer.is_valid()) {
dbgln("GUI::Clipboard::set_data() failed to create a buffer");
return;
}
if (!data.is_empty())
memcpy(buffer.data<void>(), data.data(), data.size());
connection().send_sync<Messages::ClipboardServer::SetClipboardData>(move(buffer), type, metadata);
}
void ClipboardServerConnection::handle(const Messages::ClipboardClient::ClipboardDataChanged& message)
{
auto& clipboard = Clipboard::the();
if (clipboard.on_change)
clipboard.on_change(message.mime_type());
}
RefPtr<Gfx::Bitmap> Clipboard::bitmap() const
{
auto clipping = data_and_type();
if (clipping.mime_type != "image/x-serenityos")
return nullptr;
auto width = clipping.metadata.get("width").value_or("0").to_uint();
if (!width.has_value() || width.value() == 0)
return nullptr;
auto height = clipping.metadata.get("height").value_or("0").to_uint();
if (!height.has_value() || height.value() == 0)
return nullptr;
auto scale = clipping.metadata.get("scale").value_or("0").to_uint();
if (!scale.has_value() || scale.value() == 0)
return nullptr;
auto pitch = clipping.metadata.get("pitch").value_or("0").to_uint();
if (!pitch.has_value() || pitch.value() == 0)
return nullptr;
auto format = clipping.metadata.get("format").value_or("0").to_uint();
if (!format.has_value() || format.value() == 0)
return nullptr;
auto clipping_bitmap = Gfx::Bitmap::create_wrapper((Gfx::BitmapFormat)format.value(), { (int)width.value(), (int)height.value() }, scale.value(), pitch.value(), clipping.data.data());
auto bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, { (int)width.value(), (int)height.value() }, scale.value());
for (int y = 0; y < clipping_bitmap->physical_height(); ++y) {
for (int x = 0; x < clipping_bitmap->physical_width(); ++x) {
auto pixel = clipping_bitmap->get_pixel(x, y);
bitmap->set_pixel(x, y, pixel);
}
}
return bitmap;
}
void Clipboard::set_bitmap(const Gfx::Bitmap& bitmap)
{
HashMap<String, String> metadata;
metadata.set("width", String::number(bitmap.width()));
metadata.set("height", String::number(bitmap.height()));
metadata.set("scale", String::number(bitmap.scale()));
metadata.set("format", String::number((int)bitmap.format()));
metadata.set("pitch", String::number(bitmap.pitch()));
set_data({ bitmap.scanline(0), bitmap.size_in_bytes() }, "image/x-serenityos", metadata);
}
}