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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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28
Libraries/LibGUI/AbstractView.cpp
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@ -291,33 +291,7 @@ void AbstractView::mousemove_event(MouseEvent& event)
dbg() << "Initiate drag!";
auto drag_operation = DragOperation::construct();
RefPtr<Gfx::Bitmap> bitmap;
StringBuilder text_builder;
StringBuilder data_builder;
bool first = true;
m_selection.for_each_index([&](auto& index) {
auto text_data = index.data();
if (!first)
text_builder.append(", ");
text_builder.append(text_data.to_string());
auto drag_data = index.data(ModelRole::DragData);
data_builder.append(drag_data.to_string());
data_builder.append('\n');
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);
}
});
drag_operation->set_text(text_builder.to_string());
drag_operation->set_bitmap(bitmap);
drag_operation->set_data(data_type, data_builder.to_string());
drag_operation->set_mime_data(m_model->mime_data(m_selection));
auto outcome = drag_operation->exec();