blob: 08ba76ee2359f194af0ec8ba43a475602a6cd42a [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/wm/wm_shadow_controller_delegate.h"
#include "ash/shell.h"
#include "ash/wm/overview/overview_controller.h"
#include "ash/wm/overview/overview_session.h"
#include "ash/wm/splitview/split_view_controller.h"
#include "ash/wm/window_state.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/window.h"
#include "ui/wm/core/shadow_types.h"
namespace ash {
WmShadowControllerDelegate::WmShadowControllerDelegate() = default;
WmShadowControllerDelegate::~WmShadowControllerDelegate() = default;
bool WmShadowControllerDelegate::ShouldShowShadowForWindow(
const aura::Window* window) {
// Hide the shadow if it is one of the splitscreen snapped windows.
SplitViewController* split_view_controller =
if (split_view_controller &&
(window == split_view_controller->left_window() ||
window == split_view_controller->right_window())) {
return false;
// Hide the shadow while we are in overview mode.
OverviewController* overview_controller = Shell::Get()->overview_controller();
if (overview_controller && overview_controller->IsSelecting()) {
OverviewSession* overview_session = overview_controller->overview_session();
// IsSelecting() being true implies |overview_session| exists.
if (overview_session->IsWindowInOverview(window))
return false;
// The shadow state will be updated when the window is added to a parent.
if (!window->parent())
return false;
// Show the shadow if it's currently being dragged no matter of the window's
// show state.
auto* window_state = wm::GetWindowState(window);
if (window_state && window_state->is_dragged())
return ::wm::GetShadowElevationConvertDefault(window) > 0;
// Hide the shadow if it's not being dragged and it's a maximized/fullscreen
// window.
ui::WindowShowState show_state =
if (show_state == ui::SHOW_STATE_FULLSCREEN ||
show_state == ui::SHOW_STATE_MAXIMIZED) {
return false;
return ::wm::GetShadowElevationConvertDefault(window) > 0;
} // namespace ash