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Code Issues Activity Actions

LibGUI+WindowServer: Make DragOperation hold a MimeData instance

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...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.
This commit is contained in:
AnotherTest 2020-11-07 23:14:21 +03:30 • committed by Andreas Kling
parent c930e02624
commit 6d1e47e7dd
15 changed files with 98 additions and 59 deletions
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34
Libraries/LibGUI/DragOperation.cpp
View file

@ -27,6 +27,7 @@
#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>
@ -48,18 +49,25 @@ 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_bitmap) {
shared_bitmap = m_bitmap->to_bitmap_backed_by_shared_buffer();
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_text, m_data_type, m_data, bitmap_id, 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;
@ -94,4 +102,24 @@ void DragOperation::notify_cancelled(Badge<WindowServerConnection>)
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());
}
}