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drag_util.cc
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42 lines (35 loc) · 1.39 KB
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// Copyright (c) 2020 Microsoft, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/ui/drag_util.h"
#include <memory>
#include "ui/gfx/geometry/skia_conversions.h"
namespace electron {
// Return a vector of non-draggable regions that fill a window of size
// |width| by |height|, but leave gaps where the window should be draggable.
std::vector<gfx::Rect> CalculateNonDraggableRegions(
std::unique_ptr<SkRegion> draggable,
int width,
int height) {
std::vector<gfx::Rect> result;
SkRegion non_draggable;
non_draggable.op({0, 0, width, height}, SkRegion::kUnion_Op);
non_draggable.op(*draggable, SkRegion::kDifference_Op);
for (SkRegion::Iterator it(non_draggable); !it.done(); it.next()) {
result.push_back(gfx::SkIRectToRect(it.rect()));
}
return result;
}
// Convert draggable regions in raw format to SkRegion format.
std::unique_ptr<SkRegion> DraggableRegionsToSkRegion(
const std::vector<mojom::DraggableRegionPtr>& regions) {
auto sk_region = std::make_unique<SkRegion>();
for (const auto& region : regions) {
sk_region->op(
SkIRect::MakeLTRB(region->bounds.x(), region->bounds.y(),
region->bounds.right(), region->bounds.bottom()),
region->draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
}
return sk_region;
}
} // namespace electron