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- /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * Copyright (c) 2022, the SerenityOS developers.
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <AK/Badge.h>
- #include <LibCore/EventLoop.h>
- #include <LibCore/MimeData.h>
- #include <LibGUI/ConnectionToWindowServer.h>
- #include <LibGUI/DragOperation.h>
- #include <LibGfx/Bitmap.h>
- namespace GUI {
- static DragOperation* s_current_drag_operation;
- DragOperation::DragOperation(Core::Object* parent)
- : Core::Object(parent)
- {
- }
- 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 = ConnectionToWindowServer::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<ConnectionToWindowServer>)
- {
- VERIFY(s_current_drag_operation);
- s_current_drag_operation->done(Outcome::Accepted);
- }
- void DragOperation::notify_cancelled(Badge<ConnectionToWindowServer>)
- {
- if (s_current_drag_operation)
- s_current_drag_operation->done(Outcome::Cancelled);
- }
- void DragOperation::set_text(String const& text)
- {
- if (!m_mime_data)
- m_mime_data = Core::MimeData::construct();
- m_mime_data->set_text(text);
- }
- void DragOperation::set_bitmap(Gfx::Bitmap const* 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(String const& data_type, String const& 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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