| // Copyright (c) 2012 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/shelf/shelf_layout_manager.h" |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <vector> |
| |
| #include "ash/animation/animation_change_type.h" |
| #include "ash/app_list/app_list_controller_impl.h" |
| #include "ash/app_list/app_list_metrics.h" |
| #include "ash/app_list/home_launcher_gesture_handler.h" |
| #include "ash/app_list/model/app_list_view_state.h" |
| #include "ash/app_list/views/app_list_view.h" |
| #include "ash/public/cpp/app_list/app_list_features.h" |
| #include "ash/public/cpp/shell_window_ids.h" |
| #include "ash/root_window_controller.h" |
| #include "ash/screen_util.h" |
| #include "ash/session/session_controller.h" |
| #include "ash/shelf/shelf.h" |
| #include "ash/shelf/shelf_constants.h" |
| #include "ash/shelf/shelf_layout_manager_observer.h" |
| #include "ash/shelf/shelf_widget.h" |
| #include "ash/shell.h" |
| #include "ash/system/locale/locale_update_controller.h" |
| #include "ash/system/status_area_widget.h" |
| #include "ash/wallpaper/wallpaper_controller.h" |
| #include "ash/wm/fullscreen_window_finder.h" |
| #include "ash/wm/lock_state_controller.h" |
| #include "ash/wm/mru_window_tracker.h" |
| #include "ash/wm/overview/overview_controller.h" |
| #include "ash/wm/screen_pinning_controller.h" |
| #include "ash/wm/tablet_mode/tablet_mode_controller.h" |
| #include "ash/wm/window_state.h" |
| #include "ash/wm/window_util.h" |
| #include "base/auto_reset.h" |
| #include "base/command_line.h" |
| #include "base/i18n/rtl.h" |
| #include "ui/base/hit_test.h" |
| #include "ui/base/ui_base_switches.h" |
| #include "ui/compositor/layer.h" |
| #include "ui/compositor/layer_animation_observer.h" |
| #include "ui/compositor/layer_animator.h" |
| #include "ui/compositor/scoped_layer_animation_settings.h" |
| #include "ui/display/display.h" |
| #include "ui/display/screen.h" |
| #include "ui/events/event.h" |
| #include "ui/events/event_handler.h" |
| #include "ui/keyboard/keyboard_controller.h" |
| #include "ui/views/border.h" |
| #include "ui/views/widget/widget.h" |
| #include "ui/wm/core/coordinate_conversion.h" |
| #include "ui/wm/public/activation_client.h" |
| |
| namespace ash { |
| namespace { |
| |
| // Delay before showing the shelf. This is after the mouse stops moving. |
| constexpr int kAutoHideDelayMS = 200; |
| |
| // Duration of the animation to show or hide the shelf. |
| constexpr int kAnimationDurationMS = 200; |
| |
| // To avoid hiding the shelf when the mouse transitions from a message bubble |
| // into the shelf, the hit test area is enlarged by this amount of pixels to |
| // keep the shelf from hiding. |
| constexpr int kNotificationBubbleGapHeight = 6; |
| |
| // The maximum size of the region on the display opposing the shelf managed by |
| // this ShelfLayoutManager which can trigger showing the shelf. |
| // For instance: |
| // - Primary display is left of secondary display. |
| // - Shelf is left aligned |
| // - This ShelfLayoutManager manages the shelf for the secondary display. |
| // |kMaxAutoHideShowShelfRegionSize| refers to the maximum size of the region |
| // from the right edge of the primary display which can trigger showing the |
| // auto hidden shelf. The region is used to make it easier to trigger showing |
| // the auto hidden shelf when the shelf is on the boundary between displays. |
| constexpr int kMaxAutoHideShowShelfRegionSize = 10; |
| |
| ui::Layer* GetLayer(views::Widget* widget) { |
| return widget->GetNativeView()->layer(); |
| } |
| |
| // Returns true if the window is in the app list window container. |
| bool IsAppListWindow(const aura::Window* window) { |
| const aura::Window* parent = window->parent(); |
| return parent && parent->id() == kShellWindowId_AppListContainer; |
| } |
| |
| bool IsTabletModeEnabled() { |
| // Shell could be destroying. Shell destroys TabletModeController before |
| // closing all windows. |
| if (!Shell::Get()->tablet_mode_controller()) |
| return false; |
| |
| return Shell::Get() |
| ->tablet_mode_controller() |
| ->IsTabletModeWindowManagerEnabled(); |
| } |
| |
| bool IsHomeLauncherEnabledInTabletMode() { |
| // Home launcher flag is enabled by default and removed, so this is the same |
| // as checking tablet mode state. |
| return IsTabletModeEnabled(); |
| } |
| |
| } // namespace |
| |
| // ShelfLayoutManager::UpdateShelfObserver ------------------------------------- |
| |
| // UpdateShelfObserver is used to delay updating the background until the |
| // animation completes. |
| class ShelfLayoutManager::UpdateShelfObserver |
| : public ui::ImplicitAnimationObserver { |
| public: |
| explicit UpdateShelfObserver(ShelfLayoutManager* shelf) : shelf_(shelf) { |
| shelf_->update_shelf_observer_ = this; |
| } |
| |
| void Detach() { shelf_ = nullptr; } |
| |
| void OnImplicitAnimationsCompleted() override { |
| if (shelf_) |
| shelf_->MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| delete this; |
| } |
| |
| private: |
| ~UpdateShelfObserver() override { |
| if (shelf_) |
| shelf_->update_shelf_observer_ = nullptr; |
| } |
| |
| // Shelf we're in. nullptr if deleted before we're deleted. |
| ShelfLayoutManager* shelf_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UpdateShelfObserver); |
| }; |
| |
| ShelfLayoutManager::State::State() |
| : visibility_state(SHELF_VISIBLE), |
| auto_hide_state(SHELF_AUTO_HIDE_HIDDEN), |
| window_state(wm::WORKSPACE_WINDOW_STATE_DEFAULT), |
| pre_lock_screen_animation_active(false), |
| session_state(session_manager::SessionState::UNKNOWN) {} |
| |
| bool ShelfLayoutManager::State::IsAddingSecondaryUser() const { |
| return session_state == session_manager::SessionState::LOGIN_SECONDARY; |
| } |
| |
| bool ShelfLayoutManager::State::IsScreenLocked() const { |
| return session_state == session_manager::SessionState::LOCKED; |
| } |
| |
| bool ShelfLayoutManager::State::IsActiveSessionState() const { |
| return session_state == session_manager::SessionState::ACTIVE; |
| } |
| |
| bool ShelfLayoutManager::State::Equals(const State& other) const { |
| return other.visibility_state == visibility_state && |
| (visibility_state != SHELF_AUTO_HIDE || |
| other.auto_hide_state == auto_hide_state) && |
| other.window_state == window_state && |
| other.pre_lock_screen_animation_active == |
| pre_lock_screen_animation_active && |
| other.session_state == session_state; |
| } |
| |
| // ShelfLayoutManager ---------------------------------------------------------- |
| |
| ShelfLayoutManager::ShelfLayoutManager(ShelfWidget* shelf_widget, Shelf* shelf) |
| : shelf_widget_(shelf_widget), |
| shelf_(shelf), |
| is_background_blur_enabled_( |
| app_list_features::IsBackgroundBlurEnabled()) { |
| DCHECK(shelf_widget_); |
| DCHECK(shelf_); |
| Shell::Get()->AddShellObserver(this); |
| Shell::Get()->overview_controller()->AddObserver(this); |
| Shell::Get()->app_list_controller()->AddObserver(this); |
| Shell::Get()->lock_state_controller()->AddObserver(this); |
| Shell::Get()->activation_client()->AddObserver(this); |
| Shell::Get()->locale_update_controller()->AddObserver(this); |
| state_.session_state = Shell::Get()->session_controller()->GetSessionState(); |
| keyboard::KeyboardController::Get()->AddObserver(this); |
| wallpaper_controller_observer_.Add(Shell::Get()->wallpaper_controller()); |
| display::Screen::GetScreen()->AddObserver(this); |
| } |
| |
| ShelfLayoutManager::~ShelfLayoutManager() { |
| if (update_shelf_observer_) |
| update_shelf_observer_->Detach(); |
| |
| for (auto& observer : observers_) |
| observer.WillDeleteShelfLayoutManager(); |
| display::Screen::GetScreen()->RemoveObserver(this); |
| keyboard::KeyboardController::Get()->RemoveObserver(this); |
| Shell::Get()->locale_update_controller()->RemoveObserver(this); |
| Shell::Get()->RemoveShellObserver(this); |
| Shell::Get()->lock_state_controller()->RemoveObserver(this); |
| // AppListController is destroyed early when Shell is being destroyed, it may |
| // not exist. |
| if (Shell::Get()->app_list_controller()) |
| Shell::Get()->app_list_controller()->RemoveObserver(this); |
| if (Shell::Get()->overview_controller()) |
| Shell::Get()->overview_controller()->RemoveObserver(this); |
| } |
| |
| void ShelfLayoutManager::PrepareForShutdown() { |
| in_shutdown_ = true; |
| // Stop observing changes to avoid updating a partially destructed shelf. |
| Shell::Get()->activation_client()->RemoveObserver(this); |
| } |
| |
| bool ShelfLayoutManager::IsVisible() const { |
| // status_area_widget() may be nullptr during the shutdown. |
| return shelf_widget_->status_area_widget() && |
| shelf_widget_->status_area_widget()->IsVisible() && |
| (state_.visibility_state == SHELF_VISIBLE || |
| (state_.visibility_state == SHELF_AUTO_HIDE && |
| state_.auto_hide_state == SHELF_AUTO_HIDE_SHOWN)); |
| } |
| |
| gfx::Rect ShelfLayoutManager::GetIdealBounds() const { |
| const int shelf_size = ShelfConstants::shelf_size(); |
| aura::Window* shelf_window = shelf_widget_->GetNativeWindow(); |
| gfx::Rect rect(screen_util::GetDisplayBoundsInParent(shelf_window)); |
| return SelectValueForShelfAlignment( |
| gfx::Rect(rect.x(), rect.bottom() - shelf_size, rect.width(), shelf_size), |
| gfx::Rect(rect.x(), rect.y(), shelf_size, rect.height()), |
| gfx::Rect(rect.right() - shelf_size, rect.y(), shelf_size, |
| rect.height())); |
| } |
| |
| gfx::Size ShelfLayoutManager::GetPreferredSize() { |
| TargetBounds target_bounds; |
| CalculateTargetBoundsAndUpdateWorkArea(&target_bounds); |
| return target_bounds.shelf_bounds.size(); |
| } |
| |
| void ShelfLayoutManager::LayoutShelfAndUpdateBounds() { |
| TargetBounds target_bounds; |
| CalculateTargetBoundsAndUpdateWorkArea(&target_bounds); |
| UpdateBoundsAndOpacity(target_bounds, false, nullptr); |
| |
| // Update insets in ShelfWindowTargeter when shelf bounds change. |
| for (auto& observer : observers_) |
| observer.WillChangeVisibilityState(visibility_state()); |
| } |
| |
| void ShelfLayoutManager::LayoutShelf() { |
| // The ShelfWidget may be partially closed (no native widget) during shutdown |
| // so skip layout. |
| if (in_shutdown_) |
| return; |
| |
| LayoutShelfAndUpdateBounds(); |
| } |
| |
| ShelfVisibilityState ShelfLayoutManager::CalculateShelfVisibility() { |
| switch (shelf_->auto_hide_behavior()) { |
| case SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS: |
| return SHELF_AUTO_HIDE; |
| case SHELF_AUTO_HIDE_BEHAVIOR_NEVER: |
| return SHELF_VISIBLE; |
| case SHELF_AUTO_HIDE_ALWAYS_HIDDEN: |
| return SHELF_HIDDEN; |
| } |
| return SHELF_VISIBLE; |
| } |
| |
| void ShelfLayoutManager::UpdateVisibilityState() { |
| // Bail out early after shelf is destroyed. |
| aura::Window* shelf_window = shelf_widget_->GetNativeWindow(); |
| if (in_shutdown_ || !shelf_window) |
| return; |
| |
| wm::WorkspaceWindowState window_state( |
| RootWindowController::ForWindow(shelf_window)->GetWorkspaceWindowState()); |
| |
| if (shelf_->ShouldHideOnSecondaryDisplay(state_.session_state)) { |
| // Needed to hide system tray on secondary display. |
| SetState(SHELF_HIDDEN); |
| } else if (!state_.IsActiveSessionState()) { |
| // Needed to show system tray in non active session state. |
| SetState(SHELF_VISIBLE); |
| } else if (Shell::Get()->screen_pinning_controller()->IsPinned()) { |
| SetState(SHELF_HIDDEN); |
| } else { |
| // TODO(zelidrag): Verify shelf drag animation still shows on the device |
| // when we are in SHELF_AUTO_HIDE_ALWAYS_HIDDEN. |
| switch (window_state) { |
| case wm::WORKSPACE_WINDOW_STATE_FULL_SCREEN: |
| if (IsShelfAutoHideForFullscreenMaximized()) { |
| SetState(SHELF_AUTO_HIDE); |
| } else if (IsShelfHiddenForFullscreen()) { |
| SetState(SHELF_HIDDEN); |
| } else { |
| // The shelf is sometimes not hidden when in immersive fullscreen. |
| // Force the shelf to be auto hidden in this case. |
| SetState(SHELF_AUTO_HIDE); |
| } |
| break; |
| case wm::WORKSPACE_WINDOW_STATE_MAXIMIZED: |
| SetState(IsShelfAutoHideForFullscreenMaximized() |
| ? SHELF_AUTO_HIDE |
| : CalculateShelfVisibility()); |
| break; |
| case wm::WORKSPACE_WINDOW_STATE_DEFAULT: |
| SetState(CalculateShelfVisibility()); |
| break; |
| } |
| } |
| |
| UpdateWorkspaceMask(window_state); |
| } |
| |
| void ShelfLayoutManager::UpdateAutoHideState() { |
| ShelfAutoHideState auto_hide_state = |
| CalculateAutoHideState(state_.visibility_state); |
| if (auto_hide_state != state_.auto_hide_state) { |
| if (auto_hide_state == SHELF_AUTO_HIDE_HIDDEN) { |
| // Hides happen immediately. |
| SetState(state_.visibility_state); |
| } else { |
| if (!auto_hide_timer_.IsRunning()) { |
| mouse_over_shelf_when_auto_hide_timer_started_ = |
| shelf_widget_->GetWindowBoundsInScreen().Contains( |
| display::Screen::GetScreen()->GetCursorScreenPoint()); |
| } |
| auto_hide_timer_.Start( |
| FROM_HERE, base::TimeDelta::FromMilliseconds(kAutoHideDelayMS), this, |
| &ShelfLayoutManager::UpdateAutoHideStateNow); |
| } |
| } else { |
| StopAutoHideTimer(); |
| } |
| } |
| |
| void ShelfLayoutManager::UpdateAutoHideForMouseEvent(ui::MouseEvent* event, |
| aura::Window* target) { |
| // This also checks IsShelfWindow() and IsStatusAreaWindow() to make sure we |
| // don't attempt to hide the shelf if the mouse down occurs on the shelf. |
| in_mouse_drag_ = (event->type() == ui::ET_MOUSE_DRAGGED || |
| (in_mouse_drag_ && event->type() != ui::ET_MOUSE_RELEASED && |
| event->type() != ui::ET_MOUSE_CAPTURE_CHANGED)) && |
| !IsShelfWindow(target) && !IsStatusAreaWindow(target); |
| |
| // Don't update during shutdown because synthetic mouse events (e.g. mouse |
| // exit) may be generated during status area widget teardown. |
| if (visibility_state() != SHELF_AUTO_HIDE || in_shutdown_) |
| return; |
| |
| if (event->type() == ui::ET_MOUSE_PRESSED || |
| (event->type() == ui::ET_MOUSE_MOVED && |
| GetVisibleShelfBounds().Contains( |
| display::Screen::GetScreen()->GetCursorScreenPoint()))) { |
| UpdateAutoHideState(); |
| } |
| } |
| |
| void ShelfLayoutManager::ProcessGestureEventOfAutoHideShelf( |
| ui::GestureEvent* event, |
| aura::Window* target) { |
| const bool is_shelf_window = IsShelfWindow(target); |
| // Skip event processing if shelf widget is fully visible to let the default |
| // event dispatching do its work. |
| if (IsVisible() || in_shutdown_) { |
| // Tap outside of the AUTO_HIDE_SHOWN shelf should hide it. |
| if (!is_shelf_window && !IsStatusAreaWindow(target) && |
| visibility_state() == SHELF_AUTO_HIDE && |
| state_.auto_hide_state == SHELF_AUTO_HIDE_SHOWN && |
| event->type() == ui::ET_GESTURE_TAP) { |
| UpdateAutoHideState(); |
| } |
| return; |
| } |
| |
| if (is_shelf_window) { |
| ui::GestureEvent event_in_screen(*event); |
| gfx::Point location_in_screen(event->location()); |
| ::wm::ConvertPointToScreen(target, &location_in_screen); |
| event_in_screen.set_location(location_in_screen); |
| if (ProcessGestureEvent(event_in_screen)) |
| event->StopPropagation(); |
| } |
| } |
| |
| void ShelfLayoutManager::AddObserver(ShelfLayoutManagerObserver* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void ShelfLayoutManager::RemoveObserver(ShelfLayoutManagerObserver* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| bool ShelfLayoutManager::ProcessGestureEvent( |
| const ui::GestureEvent& event_in_screen) { |
| // The gestures are disabled in the lock/login screen. |
| SessionController* controller = Shell::Get()->session_controller(); |
| if (!controller->NumberOfLoggedInUsers() || controller->IsScreenLocked()) |
| return false; |
| |
| if (IsShelfHiddenForFullscreen()) |
| return false; |
| |
| if (event_in_screen.type() == ui::ET_GESTURE_SCROLL_BEGIN) |
| return StartGestureDrag(event_in_screen); |
| |
| if (gesture_drag_status_ != GESTURE_DRAG_IN_PROGRESS && |
| gesture_drag_status_ != GESTURE_DRAG_APPLIST_IN_PROGRESS) { |
| return false; |
| } |
| |
| if (event_in_screen.type() == ui::ET_GESTURE_SCROLL_UPDATE) { |
| UpdateGestureDrag(event_in_screen); |
| return true; |
| } |
| |
| if (event_in_screen.type() == ui::ET_GESTURE_SCROLL_END || |
| event_in_screen.type() == ui::ET_SCROLL_FLING_START) { |
| if (gesture_drag_status_ == GESTURE_DRAG_APPLIST_IN_PROGRESS) |
| CompleteAppListDrag(event_in_screen); |
| else |
| CompleteGestureDrag(event_in_screen); |
| return true; |
| } |
| |
| // Unexpected event. Reset the state and let the event fall through. |
| CancelGestureDrag(); |
| return false; |
| } |
| |
| bool ShelfLayoutManager::IsDraggingWindowFromTopOrCaptionArea() const { |
| // Currently dragging maximized or fullscreen window from the top or the |
| // caption area is only allowed in tablet mode. |
| if (!IsTabletModeEnabled()) |
| return false; |
| |
| // TODO(minch): Check active window directly if removed search field |
| // in overview mode. http://crbug.com/866679 |
| auto windows = Shell::Get()->mru_window_tracker()->BuildMruWindowList(); |
| for (auto* window : windows) { |
| wm::WindowState* window_state = wm::GetWindowState(window); |
| if (window_state && window_state->is_dragged() && |
| (window_state->IsMaximized() || window_state->IsFullscreen()) && |
| (window_state->drag_details()->window_component == HTCLIENT || |
| window_state->drag_details()->window_component == HTCAPTION)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| ShelfBackgroundType ShelfLayoutManager::GetShelfBackgroundType() const { |
| if (state_.pre_lock_screen_animation_active) |
| return SHELF_BACKGROUND_DEFAULT; |
| |
| // Handle all other non active screen states, including OOBE and pre-login. |
| if (state_.session_state == session_manager::SessionState::OOBE) |
| return SHELF_BACKGROUND_OOBE; |
| if (state_.session_state != session_manager::SessionState::ACTIVE) { |
| if (Shell::Get()->wallpaper_controller()->HasShownAnyWallpaper() && |
| !Shell::Get()->wallpaper_controller()->IsWallpaperBlurred()) { |
| return SHELF_BACKGROUND_LOGIN_NONBLURRED_WALLPAPER; |
| } |
| return SHELF_BACKGROUND_LOGIN; |
| } |
| |
| if (is_app_list_visible_) { |
| if (!IsHomeLauncherEnabledInTabletMode()) |
| return SHELF_BACKGROUND_APP_LIST; |
| |
| // In tablet mode, the app list(now referred to as Home Launcher) is always |
| // visible. If the Home Launcher is either fullscreen or being animated or |
| // dragged, show the transparent background. |
| if (is_home_launcher_shown_ || is_home_launcher_target_position_shown_) |
| return SHELF_BACKGROUND_DEFAULT; |
| } |
| |
| if (Shell::Get()->IsSplitViewModeActive() || |
| (state_.visibility_state != SHELF_AUTO_HIDE && |
| state_.window_state == wm::WORKSPACE_WINDOW_STATE_MAXIMIZED)) { |
| return SHELF_BACKGROUND_MAXIMIZED; |
| } |
| |
| if (Shell::Get()->overview_controller() && |
| Shell::Get()->overview_controller()->IsSelecting()) { |
| return SHELF_BACKGROUND_OVERVIEW; |
| } |
| |
| return SHELF_BACKGROUND_DEFAULT; |
| } |
| |
| void ShelfLayoutManager::SetAccessibilityPanelHeight(int height) { |
| accessibility_panel_height_ = height; |
| LayoutShelf(); |
| } |
| |
| void ShelfLayoutManager::SetDockedMagnifierHeight(int height) { |
| docked_magnifier_height_ = height; |
| LayoutShelf(); |
| } |
| |
| void ShelfLayoutManager::MaybeUpdateShelfBackground(AnimationChangeType type) { |
| const ShelfBackgroundType new_background_type(GetShelfBackgroundType()); |
| |
| if (new_background_type == shelf_background_type_) |
| return; |
| |
| shelf_background_type_ = new_background_type; |
| for (auto& observer : observers_) |
| observer.OnBackgroundUpdated(shelf_background_type_, type); |
| } |
| |
| bool ShelfLayoutManager::ShouldBlurShelfBackground() { |
| return IsBackgroundBlurEnabled() && |
| shelf_background_type_ == SHELF_BACKGROUND_DEFAULT && |
| state_.session_state == session_manager::SessionState::ACTIVE; |
| } |
| |
| void ShelfLayoutManager::OnWindowResized() { |
| LayoutShelf(); |
| } |
| |
| void ShelfLayoutManager::SetChildBounds(aura::Window* child, |
| const gfx::Rect& requested_bounds) { |
| wm::WmSnapToPixelLayoutManager::SetChildBounds(child, requested_bounds); |
| // We may contain other widgets (such as frame maximize bubble) but they don't |
| // effect the layout in anyway. |
| if (!updating_bounds_ && |
| ((shelf_widget_->GetNativeWindow() == child) || |
| (shelf_widget_->status_area_widget()->GetNativeWindow() == child))) { |
| LayoutShelf(); |
| } |
| } |
| |
| void ShelfLayoutManager::OnShelfAutoHideBehaviorChanged( |
| aura::Window* root_window) { |
| UpdateVisibilityState(); |
| } |
| |
| void ShelfLayoutManager::OnPinnedStateChanged(aura::Window* pinned_window) { |
| // Shelf needs to be hidden on entering to pinned mode, or restored |
| // on exiting from pinned mode. |
| UpdateVisibilityState(); |
| } |
| |
| void ShelfLayoutManager::OnSplitViewModeStarted() { |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnSplitViewModeEnded() { |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnOverviewModeStartingAnimationComplete( |
| bool canceled) { |
| UpdateVisibilityState(); |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnOverviewModeEndingAnimationComplete(bool canceled) { |
| UpdateVisibilityState(); |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnAppListVisibilityChanged(bool shown, |
| int64_t display_id) { |
| // Shell may be under destruction. |
| if (!shelf_widget_ || !shelf_widget_->GetNativeWindow()) |
| return; |
| |
| if (display_.id() != display_id) |
| return; |
| |
| is_app_list_visible_ = shown; |
| MaybeUpdateShelfBackground(AnimationChangeType::IMMEDIATE); |
| } |
| |
| void ShelfLayoutManager::OnHomeLauncherTargetPositionChanged( |
| bool showing, |
| int64_t display_id) { |
| // Shell may be under destruction. |
| if (!shelf_widget_ || !shelf_widget_->GetNativeWindow()) |
| return; |
| |
| if (display_.id() != display_id) |
| return; |
| |
| is_home_launcher_target_position_shown_ = showing; |
| MaybeUpdateShelfBackground(AnimationChangeType::IMMEDIATE); |
| } |
| |
| void ShelfLayoutManager::OnHomeLauncherAnimationComplete(bool shown, |
| int64_t display_id) { |
| // Shell may be under destruction. |
| if (!shelf_widget_ || !shelf_widget_->GetNativeWindow()) |
| return; |
| |
| if (display_.id() != display_id) |
| return; |
| |
| is_home_launcher_shown_ = shown; |
| is_home_launcher_target_position_shown_ = false; |
| MaybeUpdateShelfBackground(AnimationChangeType::IMMEDIATE); |
| } |
| |
| void ShelfLayoutManager::OnWindowActivated(ActivationReason reason, |
| aura::Window* gained_active, |
| aura::Window* lost_active) { |
| UpdateAutoHideStateNow(); |
| } |
| |
| void ShelfLayoutManager::OnKeyboardAppearanceChanged( |
| const keyboard::KeyboardStateDescriptor& state) { |
| keyboard_occluded_bounds_ = state.occluded_bounds; |
| keyboard_displaced_bounds_ = state.displaced_bounds; |
| |
| LayoutShelfAndUpdateBounds(); |
| } |
| |
| void ShelfLayoutManager::OnKeyboardVisibilityStateChanged( |
| const bool is_visible) { |
| // On login screen if keyboard has been just hidden, update bounds just once |
| // but ignore target_bounds.work_area_insets since shelf overlaps with login |
| // window. |
| if (Shell::Get()->session_controller()->IsUserSessionBlocked() && |
| !is_visible) { |
| Shell::Get()->SetDisplayWorkAreaInsets(shelf_widget_->GetNativeWindow(), |
| gfx::Insets()); |
| } |
| } |
| |
| void ShelfLayoutManager::OnLockStateEvent(LockStateObserver::EventType event) { |
| if (event == EVENT_LOCK_ANIMATION_STARTED) { |
| // Enter the screen locked state and update the visibility to avoid an odd |
| // animation when transitioning the orientation from L/R to bottom. |
| state_.pre_lock_screen_animation_active = true; |
| UpdateShelfVisibilityAfterLoginUIChange(); |
| } else { |
| state_.pre_lock_screen_animation_active = false; |
| } |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnSessionStateChanged( |
| session_manager::SessionState state) { |
| // Check transition changes to/from the add user to session and change the |
| // shelf alignment accordingly |
| const bool was_adding_user = state_.IsAddingSecondaryUser(); |
| const bool was_locked = state_.IsScreenLocked(); |
| state_.session_state = state; |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| if (was_adding_user != state_.IsAddingSecondaryUser()) { |
| UpdateShelfVisibilityAfterLoginUIChange(); |
| return; |
| } |
| |
| // Force the shelf to layout for alignment (bottom if locked, restore the |
| // previous alignment otherwise). |
| if (was_locked != state_.IsScreenLocked()) |
| UpdateShelfVisibilityAfterLoginUIChange(); |
| |
| TargetBounds target_bounds; |
| CalculateTargetBoundsAndUpdateWorkArea(&target_bounds); |
| UpdateBoundsAndOpacity(target_bounds, true /* animate */, nullptr); |
| UpdateVisibilityState(); |
| } |
| |
| void ShelfLayoutManager::OnLoginStatusChanged(LoginStatus loing_status) { |
| UpdateVisibilityState(); |
| } |
| |
| void ShelfLayoutManager::OnWallpaperBlurChanged() { |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnFirstWallpaperShown() { |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| } |
| |
| void ShelfLayoutManager::OnDisplayMetricsChanged( |
| const display::Display& display, |
| uint32_t changed_metrics) { |
| // Update |user_work_area_bounds_| for the new display arrangement. |
| TargetBounds target_bounds; |
| CalculateTargetBoundsAndUpdateWorkArea(&target_bounds); |
| } |
| |
| void ShelfLayoutManager::OnLocaleChanged() { |
| // Layout update is needed when language changes between LTR and RTL. |
| LayoutShelfAndUpdateBounds(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // ShelfLayoutManager, private: |
| |
| ShelfLayoutManager::TargetBounds::TargetBounds() |
| : opacity(0.0f), status_opacity(0.0f) {} |
| |
| ShelfLayoutManager::TargetBounds::~TargetBounds() = default; |
| |
| void ShelfLayoutManager::SetState(ShelfVisibilityState visibility_state) { |
| State state; |
| state.visibility_state = visibility_state; |
| state.auto_hide_state = CalculateAutoHideState(visibility_state); |
| |
| RootWindowController* controller = |
| RootWindowController::ForWindow(shelf_widget_->GetNativeWindow()); |
| state.window_state = controller ? controller->GetWorkspaceWindowState() |
| : wm::WORKSPACE_WINDOW_STATE_DEFAULT; |
| // Preserve the log in screen states. |
| state.session_state = state_.session_state; |
| state.pre_lock_screen_animation_active = |
| state_.pre_lock_screen_animation_active; |
| |
| // Force an update because gesture drags affect the shelf bounds and we |
| // should animate back to the normal bounds at the end of a gesture. |
| bool force_update = |
| (gesture_drag_status_ == GESTURE_DRAG_CANCEL_IN_PROGRESS || |
| gesture_drag_status_ == GESTURE_DRAG_COMPLETE_IN_PROGRESS); |
| |
| if (!force_update && state_.Equals(state)) |
| return; // Nothing changed. |
| |
| for (auto& observer : observers_) |
| observer.WillChangeVisibilityState(visibility_state); |
| |
| StopAutoHideTimer(); |
| |
| State old_state = state_; |
| state_ = state; |
| |
| AnimationChangeType change_type = AnimationChangeType::ANIMATE; |
| bool delay_background_change = false; |
| |
| // Do not animate the background when: |
| // - Going from a hidden / auto hidden shelf in fullscreen to a visible shelf |
| // in tablet mode. |
| // - Going from an auto hidden shelf in tablet mode to a visible shelf in |
| // tablet mode. |
| if (state.visibility_state == SHELF_VISIBLE && |
| state.window_state == wm::WORKSPACE_WINDOW_STATE_MAXIMIZED && |
| old_state.visibility_state != SHELF_VISIBLE) { |
| change_type = AnimationChangeType::IMMEDIATE; |
| } else { |
| // Delay the animation when the shelf was hidden, and has just been made |
| // visible (e.g. using a gesture-drag). |
| if (state.visibility_state == SHELF_VISIBLE && |
| old_state.visibility_state == SHELF_AUTO_HIDE && |
| old_state.auto_hide_state == SHELF_AUTO_HIDE_HIDDEN) { |
| delay_background_change = true; |
| } |
| } |
| |
| if (delay_background_change) { |
| if (update_shelf_observer_) |
| update_shelf_observer_->Detach(); |
| // |update_shelf_observer_| deletes itself when the animation is done. |
| update_shelf_observer_ = new UpdateShelfObserver(this); |
| } else { |
| MaybeUpdateShelfBackground(change_type); |
| } |
| |
| TargetBounds target_bounds; |
| CalculateTargetBoundsAndUpdateWorkArea(&target_bounds); |
| UpdateBoundsAndOpacity( |
| target_bounds, true /* animate */, |
| delay_background_change ? update_shelf_observer_ : nullptr); |
| |
| // OnAutoHideStateChanged Should be emitted when: |
| // - firstly state changed to auto-hide from other state |
| // - or, auto_hide_state has changed |
| if ((old_state.visibility_state != state_.visibility_state && |
| state_.visibility_state == SHELF_AUTO_HIDE) || |
| old_state.auto_hide_state != state_.auto_hide_state) { |
| for (auto& observer : observers_) |
| observer.OnAutoHideStateChanged(state_.auto_hide_state); |
| } |
| } |
| |
| void ShelfLayoutManager::UpdateBoundsAndOpacity( |
| const TargetBounds& target_bounds, |
| bool animate, |
| ui::ImplicitAnimationObserver* observer) { |
| StatusAreaWidget* status_widget = shelf_widget_->status_area_widget(); |
| base::AutoReset<bool> auto_reset_updating_bounds(&updating_bounds_, true); |
| { |
| ui::ScopedLayerAnimationSettings shelf_animation_setter( |
| GetLayer(shelf_widget_)->GetAnimator()); |
| ui::ScopedLayerAnimationSettings status_animation_setter( |
| GetLayer(status_widget)->GetAnimator()); |
| if (animate) { |
| auto duration = base::TimeDelta::FromMilliseconds(kAnimationDurationMS); |
| shelf_animation_setter.SetTransitionDuration(duration); |
| shelf_animation_setter.SetTweenType(gfx::Tween::EASE_OUT); |
| shelf_animation_setter.SetPreemptionStrategy( |
| ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET); |
| status_animation_setter.SetTransitionDuration(duration); |
| status_animation_setter.SetTweenType(gfx::Tween::EASE_OUT); |
| status_animation_setter.SetPreemptionStrategy( |
| ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET); |
| } else { |
| StopAnimating(); |
| shelf_animation_setter.SetTransitionDuration(base::TimeDelta()); |
| status_animation_setter.SetTransitionDuration(base::TimeDelta()); |
| } |
| if (observer) |
| status_animation_setter.AddObserver(observer); |
| |
| GetLayer(shelf_widget_)->SetOpacity(target_bounds.opacity); |
| gfx::Rect shelf_bounds = target_bounds.shelf_bounds; |
| ::wm::ConvertRectToScreen(shelf_widget_->GetNativeWindow()->parent(), |
| &shelf_bounds); |
| shelf_widget_->SetBounds(shelf_bounds); |
| |
| GetLayer(status_widget)->SetOpacity(target_bounds.status_opacity); |
| |
| // Having a window which is visible but does not have an opacity is an |
| // illegal state. We therefore hide the shelf here if required. |
| if (!target_bounds.status_opacity) |
| status_widget->Hide(); |
| // Setting visibility during an animation causes the visibility property to |
| // animate. Override the animation settings to immediately set the |
| // visibility property. Opacity will still animate. |
| |
| // TODO(harrym): Once status area widget is a child view of shelf |
| // this can be simplified. |
| gfx::Rect status_bounds = target_bounds.status_bounds_in_shelf; |
| status_bounds.Offset(target_bounds.shelf_bounds.OffsetFromOrigin()); |
| ::wm::ConvertRectToScreen(status_widget->GetNativeWindow()->parent(), |
| &status_bounds); |
| status_widget->SetBounds(status_bounds); |
| |
| // Do not update the work area when the alignment changes to BOTTOM_LOCKED |
| // to prevent window movement when the screen is locked: crbug.com/622431 |
| // The work area is initialized with BOTTOM_LOCKED insets to prevent window |
| // movement on async preference initialization in tests: crbug.com/834369 |
| display_ = display::Screen::GetScreen()->GetDisplayNearestWindow( |
| shelf_widget_->GetNativeWindow()); |
| bool in_overview = Shell::Get()->overview_controller()->IsSelecting(); |
| if (!in_overview && !state_.IsScreenLocked() && |
| (shelf_->alignment() != SHELF_ALIGNMENT_BOTTOM_LOCKED || |
| display_.work_area() == display_.bounds())) { |
| gfx::Insets insets; |
| // If user session is blocked (login to new user session or add user to |
| // the existing session - multi-profile) then give 100% of work area only |
| // if keyboard is not shown. |
| if (!state_.IsAddingSecondaryUser() || IsKeyboardShown()) |
| insets = target_bounds.work_area_insets; |
| Shell::Get()->SetDisplayWorkAreaInsets(shelf_widget_->GetNativeWindow(), |
| insets); |
| } |
| } |
| |
| // Set an empty border to avoid the shelf view and status area overlapping. |
| // TODO(msw): Avoid setting bounds of views within the shelf widget here. |
| gfx::Rect shelf_bounds = gfx::Rect(target_bounds.shelf_bounds.size()); |
| shelf_widget_->GetContentsView()->SetBorder(views::CreateEmptyBorder( |
| shelf_bounds.InsetsFrom(target_bounds.shelf_bounds_in_shelf))); |
| shelf_widget_->GetContentsView()->Layout(); |
| |
| // Setting visibility during an animation causes the visibility property to |
| // animate. Set the visibility property without an animation. |
| if (target_bounds.status_opacity) |
| status_widget->Show(); |
| } |
| |
| bool ShelfLayoutManager::IsKeyboardShown() const { |
| return !keyboard_displaced_bounds_.IsEmpty(); |
| } |
| |
| void ShelfLayoutManager::StopAnimating() { |
| GetLayer(shelf_widget_)->GetAnimator()->StopAnimating(); |
| GetLayer(shelf_widget_->status_area_widget())->GetAnimator()->StopAnimating(); |
| } |
| |
| gfx::Rect ShelfLayoutManager::ComputeStableWorkArea() const { |
| TargetBounds target_bounds; |
| State state = state_; |
| state.visibility_state = SHELF_VISIBLE; |
| return CalculateTargetBounds(state, &target_bounds); |
| } |
| |
| gfx::Rect ShelfLayoutManager::CalculateTargetBounds( |
| const State& state, |
| TargetBounds* target_bounds) const { |
| const int shelf_size = ShelfConstants::shelf_size(); |
| // By default, show the whole shelf on the screen. |
| int shelf_in_screen_portion = shelf_size; |
| |
| if (state.visibility_state == SHELF_AUTO_HIDE && |
| state.auto_hide_state == SHELF_AUTO_HIDE_HIDDEN) { |
| shelf_in_screen_portion = kHiddenShelfInScreenPortion; |
| } else if (state.visibility_state == SHELF_HIDDEN || IsKeyboardShown()) { |
| shelf_in_screen_portion = 0; |
| } |
| |
| aura::Window* shelf_window = shelf_widget_->GetNativeWindow(); |
| gfx::Rect available_bounds = |
| screen_util::GetDisplayBoundsWithShelf(shelf_window); |
| available_bounds.Inset( |
| 0, accessibility_panel_height_ + docked_magnifier_height_, 0, 0); |
| int shelf_width = PrimaryAxisValue(available_bounds.width(), shelf_size); |
| int shelf_height = PrimaryAxisValue(shelf_size, available_bounds.height()); |
| const int shelf_primary_position = SelectValueForShelfAlignment( |
| available_bounds.bottom() - shelf_in_screen_portion, |
| available_bounds.x() - shelf_size + shelf_in_screen_portion, |
| available_bounds.right() - shelf_in_screen_portion); |
| gfx::Point shelf_origin = SelectValueForShelfAlignment( |
| gfx::Point(available_bounds.x(), shelf_primary_position), |
| gfx::Point(shelf_primary_position, available_bounds.y()), |
| gfx::Point(shelf_primary_position, available_bounds.y())); |
| |
| target_bounds->shelf_bounds = screen_util::SnapBoundsToDisplayEdge( |
| gfx::Rect(shelf_origin.x(), shelf_origin.y(), shelf_width, shelf_height), |
| shelf_widget_->GetNativeWindow()); |
| |
| gfx::Size status_size( |
| shelf_widget_->status_area_widget()->GetWindowBoundsInScreen().size()); |
| if (shelf_->IsHorizontalAlignment()) |
| status_size.set_height(shelf_size); |
| else |
| status_size.set_width(shelf_size); |
| |
| gfx::Point status_origin = SelectValueForShelfAlignment( |
| gfx::Point(0, 0), |
| gfx::Point(shelf_width - status_size.width(), |
| shelf_height - status_size.height()), |
| gfx::Point(0, shelf_height - status_size.height())); |
| if (shelf_->IsHorizontalAlignment() && !base::i18n::IsRTL()) |
| status_origin.set_x(shelf_width - status_size.width()); |
| target_bounds->status_bounds_in_shelf = gfx::Rect(status_origin, status_size); |
| |
| target_bounds->work_area_insets = SelectValueForShelfAlignment( |
| gfx::Insets(0, 0, GetWorkAreaInsets(state, shelf_height), 0), |
| gfx::Insets(0, GetWorkAreaInsets(state, shelf_width), 0, 0), |
| gfx::Insets(0, 0, 0, GetWorkAreaInsets(state, shelf_width))); |
| |
| // TODO(varkha): The functionality of managing insets for display areas |
| // should probably be pushed to a separate component. This would simplify or |
| // remove entirely the dependency on keyboard and dock. |
| |
| if (!keyboard_displaced_bounds_.IsEmpty()) { |
| // Also push in the work area inset for the keyboard if it is visible. |
| gfx::Insets keyboard_insets(0, 0, keyboard_displaced_bounds_.height(), 0); |
| target_bounds->work_area_insets += keyboard_insets; |
| } |
| |
| // Also push in the work area insets for both the ChromeVox panel and the |
| // Docked Magnifier. |
| target_bounds->work_area_insets += gfx::Insets( |
| accessibility_panel_height_ + docked_magnifier_height_, 0, 0, 0); |
| |
| target_bounds->opacity = ComputeTargetOpacity(state); |
| target_bounds->status_opacity = |
| (state.visibility_state == SHELF_AUTO_HIDE && |
| state.auto_hide_state == SHELF_AUTO_HIDE_HIDDEN && |
| gesture_drag_status_ != GESTURE_DRAG_IN_PROGRESS) |
| ? 0.0f |
| : target_bounds->opacity; |
| |
| if (gesture_drag_status_ == GESTURE_DRAG_IN_PROGRESS) |
| UpdateTargetBoundsForGesture(target_bounds); |
| |
| // This needs to happen after calling UpdateTargetBoundsForGesture(), because |
| // that can change the size of the shelf. |
| target_bounds->shelf_bounds_in_shelf = SelectValueForShelfAlignment( |
| gfx::Rect(0, 0, shelf_width - status_size.width(), |
| target_bounds->shelf_bounds.height()), |
| gfx::Rect(0, 0, target_bounds->shelf_bounds.width(), |
| shelf_height - status_size.height()), |
| gfx::Rect(0, 0, target_bounds->shelf_bounds.width(), |
| shelf_height - status_size.height())); |
| |
| available_bounds.Subtract(target_bounds->shelf_bounds); |
| available_bounds.Subtract(keyboard_occluded_bounds_); |
| |
| aura::Window* root = shelf_window->GetRootWindow(); |
| ::wm::ConvertRectToScreen(root, &available_bounds); |
| return available_bounds; |
| } |
| |
| void ShelfLayoutManager::CalculateTargetBoundsAndUpdateWorkArea( |
| TargetBounds* target_bounds) { |
| user_work_area_bounds_ = CalculateTargetBounds(state_, target_bounds); |
| } |
| |
| void ShelfLayoutManager::UpdateTargetBoundsForGesture( |
| TargetBounds* target_bounds) const { |
| CHECK_EQ(GESTURE_DRAG_IN_PROGRESS, gesture_drag_status_); |
| const bool horizontal = shelf_->IsHorizontalAlignment(); |
| const int shelf_size = ShelfConstants::shelf_size(); |
| gfx::Rect available_bounds = |
| screen_util::GetDisplayBoundsWithShelf(shelf_widget_->GetNativeWindow()); |
| int resistance_free_region = 0; |
| bool hidden_at_start = false; |
| |
| if (gesture_drag_auto_hide_state_ == SHELF_AUTO_HIDE_HIDDEN && |
| visibility_state() == SHELF_AUTO_HIDE && |
| auto_hide_state() != SHELF_AUTO_HIDE_SHOWN) { |
| // If the shelf was hidden when the drag started (and the state hasn't |
| // changed since then, e.g. because the tray-menu was shown because of the |
| // drag), then allow the drag some resistance-free region at first to make |
| // sure the shelf sticks with the finger until the shelf is visible. |
| resistance_free_region = shelf_size - kHiddenShelfInScreenPortion; |
| hidden_at_start = true; |
| } |
| |
| bool resist = SelectValueForShelfAlignment( |
| gesture_drag_amount_<-resistance_free_region, gesture_drag_amount_> |
| resistance_free_region, |
| gesture_drag_amount_ < -resistance_free_region); |
| |
| float translate = 0.f; |
| if (resist) { |
| float diff = fabsf(gesture_drag_amount_) - resistance_free_region; |
| diff = std::min(diff, sqrtf(diff)); |
| if (gesture_drag_amount_ < 0) |
| translate = -resistance_free_region - diff; |
| else |
| translate = resistance_free_region + diff; |
| } else { |
| translate = gesture_drag_amount_; |
| } |
| // Move the shelf with the gesture. |
| const int baseline = SelectValueForShelfAlignment( |
| available_bounds.bottom() - (hidden_at_start ? 0 : shelf_size), |
| available_bounds.x() - (hidden_at_start ? shelf_size : 0), |
| available_bounds.right() - (hidden_at_start ? 0 : shelf_size)); |
| if (horizontal) { |
| target_bounds->shelf_bounds.set_y(baseline + translate); |
| target_bounds->status_bounds_in_shelf.set_y(0); |
| } else { |
| target_bounds->shelf_bounds.set_x(baseline + translate); |
| target_bounds->status_bounds_in_shelf.set_x(0); |
| } |
| } |
| |
| void ShelfLayoutManager::UpdateAutoHideStateNow() { |
| SetState(state_.visibility_state); |
| |
| // If the state did not change, the auto hide timer may still be running. |
| StopAutoHideTimer(); |
| } |
| |
| void ShelfLayoutManager::StopAutoHideTimer() { |
| auto_hide_timer_.Stop(); |
| mouse_over_shelf_when_auto_hide_timer_started_ = false; |
| } |
| |
| gfx::Rect ShelfLayoutManager::GetVisibleShelfBounds() const { |
| gfx::Rect shelf_region = shelf_widget_->GetWindowBoundsInScreen(); |
| DCHECK(!display_.bounds().IsEmpty()); |
| shelf_region.Intersect(display_.bounds()); |
| return screen_util::SnapBoundsToDisplayEdge(shelf_region, |
| shelf_widget_->GetNativeWindow()); |
| } |
| |
| gfx::Rect ShelfLayoutManager::GetAutoHideShowShelfRegionInScreen() const { |
| gfx::Rect shelf_bounds_in_screen = GetVisibleShelfBounds(); |
| gfx::Vector2d offset = SelectValueForShelfAlignment( |
| gfx::Vector2d(0, shelf_bounds_in_screen.height()), |
| gfx::Vector2d(-kMaxAutoHideShowShelfRegionSize, 0), |
| gfx::Vector2d(shelf_bounds_in_screen.width(), 0)); |
| |
| gfx::Rect show_shelf_region_in_screen = shelf_bounds_in_screen; |
| show_shelf_region_in_screen += offset; |
| if (shelf_->IsHorizontalAlignment()) |
| show_shelf_region_in_screen.set_height(kMaxAutoHideShowShelfRegionSize); |
| else |
| show_shelf_region_in_screen.set_width(kMaxAutoHideShowShelfRegionSize); |
| |
| // TODO(pkotwicz): Figure out if we need any special handling when the |
| // keyboard is visible. |
| return screen_util::SnapBoundsToDisplayEdge(show_shelf_region_in_screen, |
| shelf_widget_->GetNativeWindow()); |
| } |
| |
| bool ShelfLayoutManager::HasVisibleWindow() const { |
| aura::Window* root = shelf_widget_->GetNativeWindow()->GetRootWindow(); |
| const aura::Window::Windows windows = |
| Shell::Get()->mru_window_tracker()->BuildWindowListIgnoreModal(); |
| // Process the window list and check if there are any visible windows. |
| // Ignore app list windows that may be animating to hide after dismissal. |
| for (auto* window : windows) { |
| if (window->IsVisible() && !IsAppListWindow(window) && |
| root->Contains(window)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| ShelfAutoHideState ShelfLayoutManager::CalculateAutoHideState( |
| ShelfVisibilityState visibility_state) const { |
| // Shelf is not available before login. |
| // TODO(crbug.com/701157): Remove this when the login webui fake-shelf is |
| // replaced with views. |
| if (!Shell::Get()->session_controller()->IsActiveUserSessionStarted()) |
| return SHELF_AUTO_HIDE_HIDDEN; |
| |
| if (visibility_state != SHELF_AUTO_HIDE) |
| return SHELF_AUTO_HIDE_HIDDEN; |
| |
| // Don't update the auto hide state if it is locked. |
| if (shelf_->auto_hide_lock()) |
| return state_.auto_hide_state; |
| |
| if (shelf_widget_->IsShowingAppList() && !IsHomeLauncherEnabledInTabletMode()) |
| return SHELF_AUTO_HIDE_SHOWN; |
| |
| if (shelf_widget_->status_area_widget() && |
| shelf_widget_->status_area_widget()->ShouldShowShelf()) { |
| return SHELF_AUTO_HIDE_SHOWN; |
| } |
| |
| if (shelf_widget_->IsShowingMenu()) |
| return SHELF_AUTO_HIDE_SHOWN; |
| |
| if (shelf_widget_->IsShowingOverflowBubble()) |
| return SHELF_AUTO_HIDE_SHOWN; |
| |
| if (shelf_widget_->IsActive() || |
| (shelf_widget_->status_area_widget() && |
| shelf_widget_->status_area_widget()->IsActive())) { |
| return SHELF_AUTO_HIDE_SHOWN; |
| } |
| |
| // If there are no visible windows do not hide the shelf. |
| if (!HasVisibleWindow()) |
| return SHELF_AUTO_HIDE_SHOWN; |
| |
| if (IsDraggingWindowFromTopOrCaptionArea()) |
| return SHELF_AUTO_HIDE_SHOWN; |
| |
| // Do not hide the shelf if overview mode is active. |
| if (Shell::Get()->overview_controller() && |
| Shell::Get()->overview_controller()->IsSelecting()) { |
| return SHELF_AUTO_HIDE_SHOWN; |
| } |
| |
| if (gesture_drag_status_ == GESTURE_DRAG_APPLIST_IN_PROGRESS) |
| return SHELF_AUTO_HIDE_SHOWN; |
| |
| if (gesture_drag_status_ == GESTURE_DRAG_COMPLETE_IN_PROGRESS || |
| gesture_drag_status_ == GESTURE_DRAG_CANCEL_IN_PROGRESS) { |
| return gesture_drag_auto_hide_state_; |
| } |
| |
| // Don't show if the user is dragging the mouse. |
| if (in_mouse_drag_) |
| return SHELF_AUTO_HIDE_HIDDEN; |
| |
| gfx::Rect shelf_region = GetVisibleShelfBounds(); |
| if (shelf_widget_->status_area_widget() && |
| shelf_widget_->status_area_widget()->IsMessageBubbleShown() && |
| IsVisible()) { |
| // Increase the the hit test area to prevent the shelf from disappearing |
| // when the mouse is over the bubble gap. |
| ShelfAlignment alignment = shelf_->alignment(); |
| shelf_region.Inset( |
| alignment == SHELF_ALIGNMENT_RIGHT ? -kNotificationBubbleGapHeight : 0, |
| shelf_->IsHorizontalAlignment() ? -kNotificationBubbleGapHeight : 0, |
| alignment == SHELF_ALIGNMENT_LEFT ? -kNotificationBubbleGapHeight : 0, |
| 0); |
| } |
| |
| gfx::Point cursor_position_in_screen = |
| display::Screen::GetScreen()->GetCursorScreenPoint(); |
| // Cursor is invisible in talbet mode and plug in an external mouse in tablet |
| // mode will switch to clamshell mode. |
| if (shelf_region.Contains(cursor_position_in_screen) && |
| !IsTabletModeEnabled()) { |
| return SHELF_AUTO_HIDE_SHOWN; |
| } |
| |
| // When the shelf is auto hidden and the shelf is on the boundary between two |
| // displays, it is hard to trigger showing the shelf. For instance, if a |
| // user's primary display is left of their secondary display, it is hard to |
| // unautohide a left aligned shelf on the secondary display. |
| // It is hard because: |
| // - It is hard to stop the cursor in the shelf "light bar" and not overshoot. |
| // - The cursor is warped to the other display if the cursor gets to the edge |
| // of the display. |
| // Show the shelf if the cursor started on the shelf and the user overshot the |
| // shelf slightly to make it easier to show the shelf in this situation. We |
| // do not check |auto_hide_timer_|.IsRunning() because it returns false when |
| // the timer's task is running. |
| if ((state_.auto_hide_state == SHELF_AUTO_HIDE_SHOWN || |
| mouse_over_shelf_when_auto_hide_timer_started_) && |
| GetAutoHideShowShelfRegionInScreen().Contains( |
| cursor_position_in_screen)) { |
| return SHELF_AUTO_HIDE_SHOWN; |
| } |
| |
| return SHELF_AUTO_HIDE_HIDDEN; |
| } |
| |
| bool ShelfLayoutManager::IsShelfWindow(aura::Window* window) { |
| if (!window) |
| return false; |
| const aura::Window* shelf_window = shelf_widget_->GetNativeWindow(); |
| return shelf_window && shelf_window->Contains(window); |
| } |
| |
| bool ShelfLayoutManager::IsStatusAreaWindow(aura::Window* window) { |
| if (!window) |
| return false; |
| const aura::Window* status_window = |
| shelf_widget_->status_area_widget()->GetNativeWindow(); |
| return status_window && status_window->Contains(window); |
| } |
| |
| int ShelfLayoutManager::GetWorkAreaInsets(const State& state, int size) const { |
| // The virtual keyboard always hides the shelf (in any orientation). |
| // Therefore, if the keyboard is shown, there is no need to reduce the work |
| // area by the size of the shelf. |
| if (IsKeyboardShown()) |
| return 0; |
| if (state.visibility_state == SHELF_VISIBLE) |
| return size; |
| return 0; |
| } |
| |
| void ShelfLayoutManager::UpdateShelfVisibilityAfterLoginUIChange() { |
| UpdateVisibilityState(); |
| LayoutShelf(); |
| } |
| |
| float ShelfLayoutManager::ComputeTargetOpacity(const State& state) const { |
| if (gesture_drag_status_ == GESTURE_DRAG_IN_PROGRESS || |
| state.visibility_state == SHELF_VISIBLE) { |
| return 1.0f; |
| } |
| // In Chrome OS Material Design, when shelf is hidden during auto hide state, |
| // target bounds are also hidden. So the window can extend to the edge of |
| // screen. |
| return (state.visibility_state == SHELF_AUTO_HIDE && |
| state.auto_hide_state == SHELF_AUTO_HIDE_SHOWN) |
| ? 1.0f |
| : 0.0f; |
| } |
| |
| bool ShelfLayoutManager::IsShelfHiddenForFullscreen() const { |
| const aura::Window* fullscreen_window = |
| wm::GetWindowForFullscreenMode(shelf_widget_->GetNativeWindow()); |
| return fullscreen_window && |
| wm::GetWindowState(fullscreen_window)->GetHideShelfWhenFullscreen(); |
| } |
| |
| bool ShelfLayoutManager::IsShelfAutoHideForFullscreenMaximized() const { |
| wm::WindowState* active_window = wm::GetActiveWindowState(); |
| return active_window && |
| active_window->autohide_shelf_when_maximized_or_fullscreen(); |
| } |
| |
| bool ShelfLayoutManager::ShouldHomeGestureHandleEvent(float scroll_y) const { |
| // If the shelf is not visible, home gesture shouldn't trigger. |
| if (!IsVisible()) |
| return false; |
| |
| // Scroll down events should never be handled, unless they are currently being |
| // handled |
| if (scroll_y >= 0 && gesture_drag_status_ != GESTURE_DRAG_APPLIST_IN_PROGRESS) |
| return false; |
| |
| return true; |
| } |
| |
| bool ShelfLayoutManager::StartGestureDrag( |
| const ui::GestureEvent& gesture_in_screen) { |
| if (CanStartFullscreenAppListDrag( |
| gesture_in_screen.details().scroll_y_hint())) { |
| const gfx::Rect shelf_bounds = GetIdealBounds(); |
| shelf_background_type_before_drag_ = shelf_background_type_; |
| gesture_drag_status_ = GESTURE_DRAG_APPLIST_IN_PROGRESS; |
| Shell::Get()->app_list_controller()->Show( |
| display::Screen::GetScreen() |
| ->GetDisplayNearestWindow(shelf_widget_->GetNativeWindow()) |
| .id(), |
| app_list::kSwipeFromShelf, gesture_in_screen.time_stamp()); |
| Shell::Get()->app_list_controller()->UpdateYPositionAndOpacity( |
| shelf_bounds.y(), GetAppListBackgroundOpacityOnShelfOpacity()); |
| launcher_above_shelf_bottom_amount_ = |
| shelf_bounds.bottom() - gesture_in_screen.location().y(); |
| return true; |
| } |
| |
| if (ShouldHomeGestureHandleEvent( |
| gesture_in_screen.details().scroll_y_hint())) { |
| GestureDragStatus previous_drag_status = gesture_drag_status_; |
| gesture_drag_status_ = GESTURE_DRAG_APPLIST_IN_PROGRESS; |
| HomeLauncherGestureHandler* home_launcher_handler = |
| Shell::Get()->app_list_controller()->home_launcher_gesture_handler(); |
| if (home_launcher_handler->OnPressEvent( |
| HomeLauncherGestureHandler::Mode::kSlideUpToShow, |
| gesture_in_screen.location())) { |
| return true; |
| } else { |
| gesture_drag_status_ = previous_drag_status; |
| } |
| } |
| |
| // Disable the shelf dragging if the fullscreen app list is opened. |
| if (is_app_list_visible_ && !IsHomeLauncherEnabledInTabletMode()) |
| return false; |
| |
| // Also disable shelf drags until the overflow shelf is closed. |
| if (shelf_widget_->IsShowingOverflowBubble()) |
| return false; |
| |
| gesture_drag_status_ = GESTURE_DRAG_IN_PROGRESS; |
| gesture_drag_auto_hide_state_ = visibility_state() == SHELF_AUTO_HIDE |
| ? auto_hide_state() |
| : SHELF_AUTO_HIDE_SHOWN; |
| MaybeUpdateShelfBackground(AnimationChangeType::ANIMATE); |
| gesture_drag_amount_ = 0.f; |
| return true; |
| } |
| |
| void ShelfLayoutManager::UpdateGestureDrag( |
| const ui::GestureEvent& gesture_in_screen) { |
| if (ShouldHomeGestureHandleEvent(gesture_in_screen.details().scroll_y())) { |
| HomeLauncherGestureHandler* home_launcher_handler = |
| Shell::Get()->app_list_controller()->home_launcher_gesture_handler(); |
| if (home_launcher_handler->OnScrollEvent( |
| gesture_in_screen.location(), |
| gesture_in_screen.details().scroll_y())) { |
| return; |
| } |
| } |
| |
| if (gesture_drag_status_ == GESTURE_DRAG_APPLIST_IN_PROGRESS) { |
| // Dismiss the app list if the shelf changed to vertical alignment during |
| // dragging. |
| if (!shelf_->IsHorizontalAlignment()) { |
| Shell::Get()->app_list_controller()->DismissAppList(); |
| launcher_above_shelf_bottom_amount_ = 0.f; |
| gesture_drag_status_ = GESTURE_DRAG_NONE; |
| return; |
| } |
| const gfx::Rect shelf_bounds = GetIdealBounds(); |
| Shell::Get()->app_list_controller()->UpdateYPositionAndOpacity( |
| std::min(gesture_in_screen.location().y(), shelf_bounds.y()), |
| GetAppListBackgroundOpacityOnShelfOpacity()); |
| launcher_above_shelf_bottom_amount_ = |
| shelf_bounds.bottom() - gesture_in_screen.location().y(); |
| } else { |
| gesture_drag_amount_ += |
| PrimaryAxisValue(gesture_in_screen.details().scroll_y(), |
| gesture_in_screen.details().scroll_x()); |
| LayoutShelf(); |
| } |
| } |
| |
| void ShelfLayoutManager::CompleteGestureDrag( |
| const ui::GestureEvent& gesture_in_screen) { |
| if (!ShouldChangeVisibilityAfterDrag(gesture_in_screen)) { |
| CancelGestureDrag(); |
| return; |
| } |
| |
| shelf_widget_->Deactivate(); |
| shelf_widget_->status_area_widget()->Deactivate(); |
| |
| gesture_drag_auto_hide_state_ = |
| gesture_drag_auto_hide_state_ == SHELF_AUTO_HIDE_SHOWN |
| ? SHELF_AUTO_HIDE_HIDDEN |
| : SHELF_AUTO_HIDE_SHOWN; |
| |
| // Gesture drag will only change the auto hide state of the shelf but not the |
| // auto hide behavior. Auto hide behavior can only be changed through the |
| // context menu of the shelf. Set |gesture_drag_status_| to |
| // GESTURE_DRAG_COMPLETE_IN_PROGRESS to set the auto hide state to |
| // |gesture_drag_auto_hide_state_|. |
| gesture_drag_status_ = GESTURE_DRAG_COMPLETE_IN_PROGRESS; |
| UpdateVisibilityState(); |
| gesture_drag_status_ = GESTURE_DRAG_NONE; |
| } |
| |
| void ShelfLayoutManager::CompleteAppListDrag( |
| const ui::GestureEvent& gesture_in_screen) { |
| // Change the shelf alignment to vertical during drag will reset |
| // |gesture_drag_status_| to |GESTURE_DRAG_NONE|. |
| if (gesture_drag_status_ == GESTURE_DRAG_NONE) |
| return; |
| |
| HomeLauncherGestureHandler* home_launcher_handler = |
| Shell::Get()->app_list_controller()->home_launcher_gesture_handler(); |
| DCHECK(home_launcher_handler); |
| if (home_launcher_handler->OnReleaseEvent(gesture_in_screen.location())) { |
| gesture_drag_status_ = GESTURE_DRAG_NONE; |
| return; |
| } |
| |
| using app_list::AppListViewState; |
| AppListViewState app_list_state = |
| Shell::Get()->app_list_controller()->CalculateStateAfterShelfDrag( |
| gesture_in_screen, launcher_above_shelf_bottom_amount_); |
| |
| // Keep auto-hide shelf visible if failed to open the app list. |
| base::Optional<Shelf::ScopedAutoHideLock> auto_hide_lock; |
| if (app_list_state == AppListViewState::CLOSED) |
| auto_hide_lock.emplace(shelf_); |
| Shell::Get()->app_list_controller()->EndDragFromShelf(app_list_state); |
| gesture_drag_status_ = GESTURE_DRAG_NONE; |
| } |
| |
| void ShelfLayoutManager::CancelGestureDrag() { |
| if (gesture_drag_status_ == GESTURE_DRAG_APPLIST_IN_PROGRESS) { |
| HomeLauncherGestureHandler* home_launcher_handler = |
| Shell::Get()->app_list_controller()->home_launcher_gesture_handler(); |
| DCHECK(home_launcher_handler); |
| if (home_launcher_handler->IsDragInProgress()) |
| home_launcher_handler->Cancel(); |
| else |
| Shell::Get()->app_list_controller()->DismissAppList(); |
| } else { |
| // Set |gesture_drag_status_| to GESTURE_DRAG_CANCEL_IN_PROGRESS to set the |
| // auto hide state to |gesture_drag_auto_hide_state_|, which is the |
| // visibility state before starting drag. |
| gesture_drag_status_ = GESTURE_DRAG_CANCEL_IN_PROGRESS; |
| UpdateVisibilityState(); |
| } |
| gesture_drag_status_ = GESTURE_DRAG_NONE; |
| } |
| |
| bool ShelfLayoutManager::CanStartFullscreenAppListDrag( |
| float scroll_y_hint) const { |
| // Fullscreen app list can only be dragged from bottom alignment shelf. |
| if (!shelf_->IsHorizontalAlignment()) |
| return false; |
| |
| // If the shelf is not visible, swiping up should show the shelf. |
| if (!IsVisible()) |
| return false; |
| |
| // Do not show the fullscreen app list until the overflow bubble has been |
| // closed. |
| if (shelf_widget_->IsShowingOverflowBubble()) |
| return false; |
| |
| // If app list is already opened, swiping up on the shelf should keep the app |
| // list opened. |
| if (is_app_list_visible_) |
| return false; |
| |
| // Swipes down on shelf should hide the shelf. |
| if (scroll_y_hint >= 0) |
| return false; |
| |
| // In overview mode, app list for tablet mode is hidden temporarily and will |
| // be shown automatically after overview mode ends. So prevent opening it |
| // here. |
| if (IsHomeLauncherEnabledInTabletMode()) |
| return false; |
| |
| return true; |
| } |
| |
| float ShelfLayoutManager::GetAppListBackgroundOpacityOnShelfOpacity() { |
| float shelf_opacity = shelf_widget_->GetBackgroundAlphaValue( |
| shelf_background_type_before_drag_) / |
| static_cast<float>(ShelfBackgroundAnimator::kMaxAlpha); |
| const int shelf_size = ShelfConstants::shelf_size(); |
| if (launcher_above_shelf_bottom_amount_ < shelf_size) |
| return shelf_opacity; |
| float launcher_above_shelf_amount = |
| std::max(0.f, launcher_above_shelf_bottom_amount_ - shelf_size); |
| float coefficient = |
| std::min(launcher_above_shelf_amount / |
| (app_list::AppListView::kNumOfShelfSize * shelf_size), |
| 1.0f); |
| float app_list_view_opacity = |
| is_background_blur_enabled_ |
| ? app_list::AppListView::kAppListOpacityWithBlur |
| : app_list::AppListView::kAppListOpacity; |
| return app_list_view_opacity * coefficient + |
| (1 - coefficient) * shelf_opacity; |
| } |
| |
| bool ShelfLayoutManager::IsSwipingCorrectDirection() { |
| switch (shelf_->alignment()) { |
| case SHELF_ALIGNMENT_BOTTOM: |
| case SHELF_ALIGNMENT_BOTTOM_LOCKED: |
| case SHELF_ALIGNMENT_RIGHT: |
| if (gesture_drag_auto_hide_state_ == SHELF_AUTO_HIDE_SHOWN) |
| return gesture_drag_amount_ > 0; |
| return gesture_drag_amount_ < 0; |
| case SHELF_ALIGNMENT_LEFT: |
| if (gesture_drag_auto_hide_state_ == SHELF_AUTO_HIDE_SHOWN) |
| return gesture_drag_amount_ < 0; |
| return gesture_drag_amount_ > 0; |
| } |
| return false; |
| } |
| |
| bool ShelfLayoutManager::ShouldChangeVisibilityAfterDrag( |
| const ui::GestureEvent& gesture_in_screen) { |
| // Shelf can be visible in 1) SHELF_VISIBLE or 2) SHELF_AUTO_HIDE but in |
| // SHELF_AUTO_HIDE_SHOWN. See details in IsVisible. Dragging on SHELF_VISIBLE |
| // shelf should not change its visibility since it should be kept visible. |
| if (visibility_state() == SHELF_VISIBLE) |
| return false; |
| |
| if (gesture_in_screen.type() == ui::ET_GESTURE_SCROLL_END) { |
| // The visibility of the shelf changes only if the shelf was dragged X% |
| // along the correct axis. If the shelf was already visible, then the |
| // direction of the drag does not matter. |
| const float kDragHideThreshold = 0.4f; |
| const gfx::Rect bounds = GetIdealBounds(); |
| const float drag_ratio = |
| fabs(gesture_drag_amount_) / |
| (shelf_->IsHorizontalAlignment() ? bounds.height() : bounds.width()); |
| |
| return IsSwipingCorrectDirection() && drag_ratio > kDragHideThreshold; |
| } |
| |
| if (gesture_in_screen.type() == ui::ET_SCROLL_FLING_START) |
| return IsSwipingCorrectDirection(); |
| |
| return false; |
| } |
| |
| void ShelfLayoutManager::UpdateWorkspaceMask( |
| wm::WorkspaceWindowState window_state) { |
| // Disable the mask on NonLockScreenContainer if maximized/fullscreen window |
| // is on top. |
| // TODO(oshima): Investigate if we can remove SetMasksToBounds calls |
| // crbug.com/898236. |
| auto* root_window_controller = |
| RootWindowController::ForWindow(shelf_widget_->GetNativeWindow()); |
| auto* container = root_window_controller->GetContainer( |
| kShellWindowId_NonLockScreenContainersContainer); |
| switch (window_state) { |
| case wm::WORKSPACE_WINDOW_STATE_MAXIMIZED: |
| case wm::WORKSPACE_WINDOW_STATE_FULL_SCREEN: |
| container->layer()->SetMasksToBounds(false); |
| break; |
| case wm::WORKSPACE_WINDOW_STATE_DEFAULT: |
| container->layer()->SetMasksToBounds(true); |
| break; |
| } |
| } |
| |
| } // namespace ash |