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Libraries: Move to Userland/Libraries/
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1857 changed files with 266 additions and 274 deletions
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Badge.h>
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#include <AK/SharedBuffer.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/MimeData.h>
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#include <LibGUI/DragOperation.h>
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#include <LibGUI/WindowServerConnection.h>
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#include <LibGfx/Bitmap.h>
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namespace GUI {
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static DragOperation* s_current_drag_operation;
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DragOperation::DragOperation(Core::Object* parent)
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: Core::Object(parent)
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{
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}
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DragOperation::~DragOperation()
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{
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}
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DragOperation::Outcome DragOperation::exec()
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{
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ASSERT(!s_current_drag_operation);
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ASSERT(!m_event_loop);
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ASSERT(m_mime_data);
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int bitmap_id = -1;
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Gfx::IntSize bitmap_size;
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RefPtr<Gfx::Bitmap> shared_bitmap;
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if (m_mime_data->has_format("image/x-raw-bitmap")) {
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auto data = m_mime_data->data("image/x-raw-bitmap");
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auto bitmap = Gfx::Bitmap::create_from_serialized_byte_buffer(move(data));
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shared_bitmap = bitmap->to_bitmap_backed_by_shared_buffer();
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shared_bitmap->shared_buffer()->share_with(WindowServerConnection::the().server_pid());
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bitmap_id = shared_bitmap->shbuf_id();
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bitmap_size = shared_bitmap->size();
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}
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auto response = WindowServerConnection::the().send_sync<Messages::WindowServer::StartDrag>(
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m_mime_data->text(),
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m_mime_data->all_data(),
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bitmap_id, bitmap_size);
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if (!response->started()) {
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m_outcome = Outcome::Cancelled;
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return m_outcome;
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}
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s_current_drag_operation = this;
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m_event_loop = make<Core::EventLoop>();
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auto result = m_event_loop->exec();
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m_event_loop = nullptr;
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dbgln("{}: event loop returned with result {}", class_name(), result);
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remove_from_parent();
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s_current_drag_operation = nullptr;
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return m_outcome;
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}
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void DragOperation::done(Outcome outcome)
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{
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ASSERT(m_outcome == Outcome::None);
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m_outcome = outcome;
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m_event_loop->quit(0);
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}
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void DragOperation::notify_accepted(Badge<WindowServerConnection>)
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{
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ASSERT(s_current_drag_operation);
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s_current_drag_operation->done(Outcome::Accepted);
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}
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void DragOperation::notify_cancelled(Badge<WindowServerConnection>)
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{
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if (s_current_drag_operation)
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s_current_drag_operation->done(Outcome::Cancelled);
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}
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void DragOperation::set_text(const String& text)
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{
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if (!m_mime_data)
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m_mime_data = Core::MimeData::construct();
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m_mime_data->set_text(text);
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}
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void DragOperation::set_bitmap(const Gfx::Bitmap* bitmap)
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{
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if (!m_mime_data)
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m_mime_data = Core::MimeData::construct();
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if (bitmap)
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m_mime_data->set_data("image/x-raw-bitmap", bitmap->serialize_to_byte_buffer());
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}
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void DragOperation::set_data(const String& data_type, const String& data)
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{
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if (!m_mime_data)
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m_mime_data = Core::MimeData::construct();
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m_mime_data->set_data(data_type, data.to_byte_buffer());
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}
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}
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