| // Copyright 2018 The Chromium Authors |
| // 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/root_window_controller.h" |
| #include "ash/shell.h" |
| #include "ash/wm/desks/desks_util.h" |
| #include "ash/wm/overview/overview_controller.h" |
| #include "ash/wm/overview/overview_item.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. |
| if (window->GetRootWindow() && RootWindowController::ForWindow(window)) { |
| SplitViewController* split_view_controller = |
| SplitViewController::Get(window); |
| if (split_view_controller && |
| split_view_controller->IsWindowInSplitView(window)) { |
| return false; |
| } |
| } |
| |
| // Hide the shadow while we are in overview mode. |
| OverviewController* overview_controller = Shell::Get()->overview_controller(); |
| if (overview_controller && overview_controller->InOverviewSession()) { |
| OverviewSession* overview_session = overview_controller->overview_session(); |
| // InOverviewSession() being true implies |overview_session| exists. |
| DCHECK(overview_session); |
| // Windows in overview that are not moving out of the active desk should not |
| // have shadows. |
| auto* overview_item = overview_session->GetOverviewItemForWindow(window); |
| if (desks_util::BelongsToActiveDesk(const_cast<aura::Window*>(window)) && |
| overview_item && !overview_item->is_moving_to_another_desk()) { |
| 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 = WindowState::Get(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 = |
| window->GetProperty(aura::client::kShowStateKey); |
| if (show_state == ui::SHOW_STATE_FULLSCREEN || |
| show_state == ui::SHOW_STATE_MAXIMIZED) { |
| return false; |
| } |
| |
| return ::wm::GetShadowElevationConvertDefault(window) > 0; |
| } |
| |
| } // namespace ash |