mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 03:52:43 +00:00
6d1e47e7dd
...instead of maybe bitmap + a single mime type and its corresponding data. This allows drag&drop operations to hold multiple different kinds of data, and the views/applications to choose between those. For instance, Spreadsheet can keep the structure of the dragged cells, and still provide text-only data to be passed to different unrelated editors.
125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, 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 <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()
|
|
{
|
|
ASSERT(!s_current_drag_operation);
|
|
ASSERT(!m_event_loop);
|
|
ASSERT(m_mime_data);
|
|
|
|
int bitmap_id = -1;
|
|
Gfx::IntSize bitmap_size;
|
|
RefPtr<Gfx::Bitmap> shared_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::create_from_serialized_byte_buffer(move(data));
|
|
shared_bitmap = bitmap->to_bitmap_backed_by_shared_buffer();
|
|
shared_bitmap->shared_buffer()->share_with(WindowServerConnection::the().server_pid());
|
|
bitmap_id = shared_bitmap->shbuf_id();
|
|
bitmap_size = shared_bitmap->size();
|
|
}
|
|
|
|
auto response = WindowServerConnection::the().send_sync<Messages::WindowServer::StartDrag>(
|
|
m_mime_data->text(),
|
|
m_mime_data->all_data(),
|
|
bitmap_id, bitmap_size);
|
|
|
|
if (!response->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;
|
|
dbgprintf("%s: event loop returned with result %d\n", class_name(), result);
|
|
remove_from_parent();
|
|
s_current_drag_operation = nullptr;
|
|
return m_outcome;
|
|
}
|
|
|
|
void DragOperation::done(Outcome outcome)
|
|
{
|
|
ASSERT(m_outcome == Outcome::None);
|
|
m_outcome = outcome;
|
|
m_event_loop->quit(0);
|
|
}
|
|
|
|
void DragOperation::notify_accepted(Badge<WindowServerConnection>)
|
|
{
|
|
ASSERT(s_current_drag_operation);
|
|
s_current_drag_operation->done(Outcome::Accepted);
|
|
}
|
|
|
|
void DragOperation::notify_cancelled(Badge<WindowServerConnection>)
|
|
{
|
|
ASSERT(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());
|
|
}
|
|
|
|
}
|