electron/atom/browser/ui/win/atom_desktop_window_tree_host_win.cc

// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.

#include "atom/browser/ui/win/atom_desktop_window_tree_host_win.h"

#include "atom/browser/ui/win/message_handler_delegate.h"

namespace atom {

AtomDesktopWindowTreeHostWin::AtomDesktopWindowTreeHostWin(
    MessageHandlerDelegate* delegate,
    views::internal::NativeWidgetDelegate* native_widget_delegate,
    views::DesktopNativeWidgetAura* desktop_native_widget_aura)
    : views::DesktopWindowTreeHostWin(native_widget_delegate,
                                      desktop_native_widget_aura),
      delegate_(delegate) {}

AtomDesktopWindowTreeHostWin::~AtomDesktopWindowTreeHostWin() {}

bool AtomDesktopWindowTreeHostWin::PreHandleMSG(UINT message,
                                                WPARAM w_param,
                                                LPARAM l_param,
                                                LRESULT* result) {
  return delegate_->PreHandleMSG(message, w_param, l_param, result);
}

bool AtomDesktopWindowTreeHostWin::HasNativeFrame() const {
  // Since we never use chromium's titlebar implementation, we can just say
  // that we use a native titlebar. This will disable the repaint locking when
  // DWM composition is disabled.
  return true;
}

}  // namespace atom