ui/views/window/native_frame_view.cc

// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/window/native_frame_view.h"

#include "build/build_config.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/views/widget/native_widget.h"
#include "ui/views/widget/widget.h"

#if BUILDFLAG(IS_WIN)
#include "ui/views/win/hwnd_util.h"
#endif

namespace views {

////////////////////////////////////////////////////////////////////////////////
// NativeFrameView, public:

NativeFrameView::NativeFrameView(Widget* widget) : widget_(widget) {}

NativeFrameView::~NativeFrameView() = default;

////////////////////////////////////////////////////////////////////////////////
// NativeFrameView, FrameView overrides:

gfx::Rect NativeFrameView::GetBoundsForClientView() const {
  return gfx::Rect(0, 0, width(), height());
}

gfx::Rect NativeFrameView::GetWindowBoundsForClientBounds(
    const gfx::Rect& client_bounds) const {
#if BUILDFLAG(IS_WIN)
  return views::GetWindowBoundsForClientBounds(
      static_cast<View*>(const_cast<NativeFrameView*>(this)), client_bounds);
#else
  // Enforce minimum size (1, 1) in case that |client_bounds| is passed with
  // empty size.
  gfx::Rect window_bounds = client_bounds;
  if (window_bounds.IsEmpty()) {
    window_bounds.set_size(gfx::Size(1, 1));
  }
  return window_bounds;
#endif
}

int NativeFrameView::NonClientHitTest(const gfx::Point& point) {
  if (!non_client_hit_test_callback_.is_null()) {
    if (auto result = non_client_hit_test_callback_.Run(point); result) {
      return result.value();
    }
  }

  return widget_->client_view()->NonClientHitTest(point);
}

gfx::Size NativeFrameView::CalculatePreferredSize(
    const SizeBounds& available_size) const {
  gfx::Size client_preferred_size =
      widget_->client_view()->GetPreferredSize(available_size);
#if BUILDFLAG(IS_WIN)
  // Returns the client size. On Windows, this is the expected behavior for
  // native frames (see |NativeWidgetWin::WidgetSizeIsClientSize()|), while
  // other platforms currently always return client bounds from
  // |GetWindowBoundsForClientBounds()|.
  return client_preferred_size;
#else
  return widget_->non_client_view()
      ->GetWindowBoundsForClientBounds(gfx::Rect(client_preferred_size))
      .size();
#endif
}

gfx::Size NativeFrameView::GetMinimumSize() const {
  return widget_->client_view()->GetMinimumSize();
}

gfx::Size NativeFrameView::GetMaximumSize() const {
  return widget_->client_view()->GetMaximumSize();
}

BEGIN_METADATA(NativeFrameView)
END_METADATA

}  // namespace views