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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Badge.h>
#include <LibCore/EventLoop.h>
#include <LibCore/MimeData.h>
#include <LibGUI/DragOperation.h>
#include <LibGUI/WindowServerConnection.h>
#include <LibGfx/Bitmap.h>
namespace GUI {
static DragOperation* s_current_drag_operation;
DragOperation::DragOperation(Core::Object* parent)
: Core::Object(parent)
{
}
DragOperation::~DragOperation()
{
}
DragOperation::Outcome DragOperation::exec()
{
VERIFY(!s_current_drag_operation);
VERIFY(!m_event_loop);
VERIFY(m_mime_data);
Gfx::ShareableBitmap drag_bitmap;
if (m_mime_data->has_format("image/x-raw-bitmap")) {
auto data = m_mime_data->data("image/x-raw-bitmap");
auto bitmap = Gfx::Bitmap::try_create_from_serialized_byte_buffer(move(data)).release_value_but_fixme_should_propagate_errors();
drag_bitmap = bitmap->to_shareable_bitmap();
}
auto started = WindowServerConnection::the().start_drag(
m_mime_data->text(),
m_mime_data->all_data(),
drag_bitmap);
if (!started) {
m_outcome = Outcome::Cancelled;
return m_outcome;
}
s_current_drag_operation = this;
m_event_loop = make<Core::EventLoop>();
auto result = m_event_loop->exec();
m_event_loop = nullptr;
dbgln("{}: event loop returned with result {}", class_name(), result);
remove_from_parent();
s_current_drag_operation = nullptr;
return m_outcome;
}
void DragOperation::done(Outcome outcome)
{
VERIFY(m_outcome == Outcome::None);
m_outcome = outcome;
m_event_loop->quit(0);
}
void DragOperation::notify_accepted(Badge<WindowServerConnection>)
{
VERIFY(s_current_drag_operation);
s_current_drag_operation->done(Outcome::Accepted);
}
void DragOperation::notify_cancelled(Badge<WindowServerConnection>)
{
if (s_current_drag_operation)
s_current_drag_operation->done(Outcome::Cancelled);
}
void DragOperation::set_text(const String& text)
{
if (!m_mime_data)
m_mime_data = Core::MimeData::construct();
m_mime_data->set_text(text);
}
void DragOperation::set_bitmap(const Gfx::Bitmap* bitmap)
{
if (!m_mime_data)
m_mime_data = Core::MimeData::construct();
if (bitmap)
m_mime_data->set_data("image/x-raw-bitmap", bitmap->serialize_to_byte_buffer());
}
void DragOperation::set_data(const String& data_type, const String& data)
{
if (!m_mime_data)
m_mime_data = Core::MimeData::construct();
m_mime_data->set_data(data_type, data.to_byte_buffer());
}
}
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