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LibGUI: Implement automatic scrolling in AbstractView

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This adds automatic scrolling when dragging items in TreeViews and other
widgets that inherit from AbstractView when the overloaded
accepts_drag() returns true. This is implemented in FileSystemModel to
allow directories and files to be dragged.
This commit is contained in:
Marcus Nilsson 2021-09-19 21:31:19 +02:00 • committed by Andreas Kling
parent 53cfc6ec9f
commit d660e86d13
6 changed files with 45 additions and 7 deletions
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6
Userland/Libraries/LibGUI/FileSystemModel.cpp
View file

@ -711,10 +711,12 @@ String FileSystemModel::column_name(int column) const
bool FileSystemModel::accepts_drag(ModelIndex const& index, Vector<String> const& mime_types) const
{
if (!index.is_valid())
return false;
if (!mime_types.contains_slow("text/uri-list"))
return false;
if (!index.is_valid())
return true;
auto& node = this->node(index);
return node.is_directory();
}