67b91d51a7
Previously the client would only learn the mime type of what was being dropped on it once the drop occurred. To enable more sophisticated filtering of drag & drop, we now pass along the list of mime types being dragged to the client with each MouseMove event. (Note that MouseMove is translated to the various Drag* events in LibGUI on the client side.)
125 lines
3.6 KiB
C++
125 lines
3.6 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 <LibGUI/AbstractView.h>
|
|
#include <LibGUI/Model.h>
|
|
|
|
namespace GUI {
|
|
|
|
Model::Model()
|
|
{
|
|
}
|
|
|
|
Model::~Model()
|
|
{
|
|
}
|
|
|
|
void Model::register_view(Badge<AbstractView>, AbstractView& view)
|
|
{
|
|
m_views.set(&view);
|
|
m_clients.set(&view);
|
|
}
|
|
|
|
void Model::unregister_view(Badge<AbstractView>, AbstractView& view)
|
|
{
|
|
m_views.remove(&view);
|
|
m_clients.remove(&view);
|
|
}
|
|
|
|
void Model::for_each_view(Function<void(AbstractView&)> callback)
|
|
{
|
|
for (auto* view : m_views)
|
|
callback(*view);
|
|
}
|
|
|
|
void Model::did_update(unsigned flags)
|
|
{
|
|
for (auto* client : m_clients)
|
|
client->model_did_update(flags);
|
|
}
|
|
|
|
ModelIndex Model::create_index(int row, int column, const void* data) const
|
|
{
|
|
return ModelIndex(*this, row, column, const_cast<void*>(data));
|
|
}
|
|
|
|
ModelIndex Model::index(int row, int column, const ModelIndex&) const
|
|
{
|
|
return create_index(row, column);
|
|
}
|
|
|
|
bool Model::accepts_drag(const ModelIndex&, const Vector<String>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void Model::register_client(ModelClient& client)
|
|
{
|
|
m_clients.set(&client);
|
|
}
|
|
|
|
void Model::unregister_client(ModelClient& client)
|
|
{
|
|
m_clients.remove(&client);
|
|
}
|
|
|
|
RefPtr<Core::MimeData> Model::mime_data(const ModelSelection& selection) const
|
|
{
|
|
auto mime_data = Core::MimeData::construct();
|
|
RefPtr<Gfx::Bitmap> bitmap;
|
|
|
|
StringBuilder text_builder;
|
|
StringBuilder data_builder;
|
|
bool first = true;
|
|
selection.for_each_index([&](auto& index) {
|
|
auto text_data = index.data();
|
|
if (!first)
|
|
text_builder.append(", ");
|
|
text_builder.append(text_data.to_string());
|
|
|
|
if (!first)
|
|
data_builder.append('\n');
|
|
auto data = index.data(ModelRole::MimeData);
|
|
data_builder.append(data.to_string());
|
|
|
|
first = false;
|
|
|
|
if (!bitmap) {
|
|
Variant icon_data = index.data(ModelRole::Icon);
|
|
if (icon_data.is_icon())
|
|
bitmap = icon_data.as_icon().bitmap_for_size(32);
|
|
}
|
|
});
|
|
|
|
mime_data->set_data(drag_data_type(), data_builder.to_byte_buffer());
|
|
mime_data->set_text(text_builder.to_string());
|
|
if (bitmap)
|
|
mime_data->set_data("image/x-raw-bitmap", bitmap->serialize_to_byte_buffer());
|
|
|
|
return mime_data;
|
|
}
|
|
|
|
}
|