| // 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_view.h" |
| |
| #include <algorithm> |
| #include <memory> |
| |
| #include "ash/drag_drop/drag_image_view.h" |
| #include "ash/metrics/user_metrics_recorder.h" |
| #include "ash/public/cpp/ash_constants.h" |
| #include "ash/public/cpp/shelf_item_delegate.h" |
| #include "ash/public/cpp/shelf_model.h" |
| #include "ash/public/cpp/window_properties.h" |
| #include "ash/scoped_root_window_for_new_windows.h" |
| #include "ash/screen_util.h" |
| #include "ash/shelf/app_list_button.h" |
| #include "ash/shelf/back_button.h" |
| #include "ash/shelf/overflow_button.h" |
| #include "ash/shelf/shelf.h" |
| #include "ash/shelf/shelf_app_button.h" |
| #include "ash/shelf/shelf_application_menu_model.h" |
| #include "ash/shelf/shelf_button.h" |
| #include "ash/shelf/shelf_constants.h" |
| #include "ash/shelf/shelf_context_menu_model.h" |
| #include "ash/shelf/shelf_controller.h" |
| #include "ash/shelf/shelf_menu_model_adapter.h" |
| #include "ash/shelf/shelf_widget.h" |
| #include "ash/shell.h" |
| #include "ash/shell_delegate.h" |
| #include "ash/strings/grit/ash_strings.h" |
| #include "ash/system/model/system_tray_model.h" |
| #include "ash/system/model/virtual_keyboard_model.h" |
| #include "ash/system/status_area_widget.h" |
| #include "ash/wm/mru_window_tracker.h" |
| #include "ash/wm/root_window_finder.h" |
| #include "ash/wm/tablet_mode/tablet_mode_controller.h" |
| #include "base/auto_reset.h" |
| #include "base/containers/adapters.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/timer/timer.h" |
| #include "chromeos/constants/chromeos_switches.h" |
| #include "ui/accessibility/ax_node_data.h" |
| #include "ui/base/l10n/l10n_util.h" |
| #include "ui/base/models/simple_menu_model.h" |
| #include "ui/base/ui_base_features.h" |
| #include "ui/compositor/layer.h" |
| #include "ui/compositor/layer_animator.h" |
| #include "ui/compositor/scoped_animation_duration_scale_mode.h" |
| #include "ui/events/event_utils.h" |
| #include "ui/gfx/canvas.h" |
| #include "ui/gfx/geometry/point.h" |
| #include "ui/keyboard/keyboard_controller.h" |
| #include "ui/views/animation/bounds_animator.h" |
| #include "ui/views/animation/ink_drop.h" |
| #include "ui/views/border.h" |
| #include "ui/views/controls/button/button.h" |
| #include "ui/views/controls/menu/menu_model_adapter.h" |
| #include "ui/views/controls/menu/menu_runner.h" |
| #include "ui/views/controls/separator.h" |
| #include "ui/views/focus/focus_search.h" |
| #include "ui/views/view_model.h" |
| #include "ui/views/view_model_utils.h" |
| #include "ui/views/widget/widget.h" |
| #include "ui/wm/core/coordinate_conversion.h" |
| |
| using gfx::Animation; |
| using views::View; |
| |
| namespace ash { |
| |
| // Indices of the start-aligned system buttons (the "back" button in tablet |
| // mode, and the "app list" button). |
| constexpr int kBackButtonIndex = 0; |
| constexpr int kAppListButtonIndex = 1; |
| |
| // The distance of the cursor from the outer rim of the shelf before it |
| // separates. |
| constexpr int kRipOffDistance = 48; |
| |
| // The dimensions, in pixels, of the separator between pinned and unpinned |
| // items. |
| constexpr int kSeparatorSize = 20; |
| constexpr int kSeparatorThickness = 1; |
| |
| // The margin between the app list button and the first shelf item. |
| constexpr int kAppListButtonMargin = 32; |
| |
| // White with ~20% opacity. |
| constexpr SkColor kSeparatorColor = SkColorSetARGB(0x32, 0xFF, 0xFF, 0xFF); |
| |
| // The rip off drag and drop proxy image should get scaled by this factor. |
| constexpr float kDragAndDropProxyScale = 1.2f; |
| |
| // The opacity represents that this partially disappeared item will get removed. |
| constexpr float kDraggedImageOpacity = 0.5f; |
| |
| namespace { |
| |
| // Inset from the bubble bounds to the bounds beyond which dragging triggers |
| // scrolling. |
| constexpr int kScrollTriggerBoundsInsetDips = 28; |
| |
| // Time delay after which the scrolling speed will be increased. |
| constexpr base::TimeDelta kDragScrollSpeedIncreaseDelay = |
| base::TimeDelta::FromSeconds(1); |
| |
| // Time interval at which to scroll the overflow bubble for dragging. |
| constexpr base::TimeDelta kDragScrollInterval = |
| base::TimeDelta::FromMilliseconds(17); |
| |
| // How far to scroll the overflow bubble each time. |
| constexpr int kDragSlowScrollDeltaDips = 3; |
| constexpr int kDragFastScrollDeltaDips = 6; |
| |
| // Helper to check if tablet mode is enabled. |
| bool IsTabletModeEnabled() { |
| return Shell::Get()->tablet_mode_controller() && |
| Shell::Get() |
| ->tablet_mode_controller() |
| ->IsTabletModeWindowManagerEnabled(); |
| } |
| |
| // A class to temporarily disable a given bounds animator. |
| class BoundsAnimatorDisabler { |
| public: |
| explicit BoundsAnimatorDisabler(views::BoundsAnimator* bounds_animator) |
| : old_duration_(bounds_animator->GetAnimationDuration()), |
| bounds_animator_(bounds_animator) { |
| bounds_animator_->SetAnimationDuration(1); |
| } |
| |
| ~BoundsAnimatorDisabler() { |
| bounds_animator_->SetAnimationDuration(old_duration_); |
| } |
| |
| private: |
| // The previous animation duration. |
| int old_duration_; |
| // The bounds animator which gets used. |
| views::BoundsAnimator* bounds_animator_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BoundsAnimatorDisabler); |
| }; |
| |
| // Custom FocusSearch used to navigate the shelf in the order items are in |
| // the ViewModel. |
| class ShelfFocusSearch : public views::FocusSearch { |
| public: |
| explicit ShelfFocusSearch(ShelfView* shelf_view) |
| : FocusSearch(nullptr, true, true), shelf_view_(shelf_view) {} |
| ~ShelfFocusSearch() override = default; |
| |
| // views::FocusSearch: |
| View* FindNextFocusableView( |
| View* starting_view, |
| FocusSearch::SearchDirection search_direction, |
| FocusSearch::TraversalDirection traversal_direction, |
| FocusSearch::StartingViewPolicy check_starting_view, |
| FocusSearch::AnchoredDialogPolicy can_go_into_anchored_dialog, |
| views::FocusTraversable** focus_traversable, |
| View** focus_traversable_view) override { |
| // Build a list of all views that we are able to focus: 1) items from the |
| // main shelf, 2) overflow button, 3) items from overflow if applicable. |
| std::vector<views::View*> focusable_views; |
| ShelfView* main_shelf = shelf_view_->main_shelf(); |
| ShelfView* overflow_shelf = shelf_view_->overflow_shelf(); |
| |
| for (int i = main_shelf->first_visible_index(); |
| i <= main_shelf->last_visible_index(); ++i) { |
| views::View* view = main_shelf->view_model()->view_at(i); |
| if (view != main_shelf->GetBackButton() || IsTabletModeEnabled()) |
| focusable_views.push_back(view); |
| } |
| if (main_shelf->GetOverflowButton()->visible()) |
| focusable_views.push_back(main_shelf->GetOverflowButton()); |
| const int overflow_cutoff = static_cast<int>(focusable_views.size()); |
| if (main_shelf->IsShowingOverflowBubble() && overflow_shelf) { |
| for (int i = overflow_shelf->first_visible_index(); |
| i <= overflow_shelf->last_visible_index(); ++i) { |
| focusable_views.push_back(overflow_shelf->view_model()->view_at(i)); |
| } |
| } |
| |
| // Where are we starting from? |
| int start_index = 0; |
| for (size_t i = 0; i < focusable_views.size(); ++i) { |
| if (focusable_views[i] == starting_view) { |
| start_index = i; |
| break; |
| } |
| } |
| int new_index = |
| start_index + |
| (search_direction == FocusSearch::SearchDirection::kBackwards ? -1 : 1); |
| // Loop around. |
| if (new_index < 0) |
| new_index = focusable_views.size() - 1; |
| else if (new_index >= static_cast<int>(focusable_views.size())) |
| new_index = 0; |
| |
| if (new_index >= overflow_cutoff) |
| shelf_view_->shelf_widget()->set_activated_from_overflow_bubble(true); |
| return focusable_views[new_index]; |
| } |
| |
| private: |
| ShelfView* shelf_view_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ShelfFocusSearch); |
| }; |
| |
| // AnimationDelegate used when inserting a new item. This steadily increases the |
| // opacity of the layer as the animation progress. |
| class FadeInAnimationDelegate : public gfx::AnimationDelegate { |
| public: |
| explicit FadeInAnimationDelegate(views::View* view) : view_(view) {} |
| ~FadeInAnimationDelegate() override = default; |
| |
| // AnimationDelegate overrides: |
| void AnimationProgressed(const Animation* animation) override { |
| view_->layer()->SetOpacity(animation->GetCurrentValue()); |
| view_->layer()->ScheduleDraw(); |
| } |
| void AnimationEnded(const Animation* animation) override { |
| view_->layer()->SetOpacity(1.0f); |
| view_->layer()->ScheduleDraw(); |
| } |
| void AnimationCanceled(const Animation* animation) override { |
| view_->layer()->SetOpacity(1.0f); |
| view_->layer()->ScheduleDraw(); |
| } |
| |
| private: |
| views::View* view_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FadeInAnimationDelegate); |
| }; |
| |
| // Returns the id of the display on which |view| is shown. |
| int64_t GetDisplayIdForView(View* view) { |
| aura::Window* window = view->GetWidget()->GetNativeWindow(); |
| return display::Screen::GetScreen()->GetDisplayNearestWindow(window).id(); |
| } |
| |
| // Whether |item_view| is a ShelfAppButton and its state is STATE_DRAGGING. |
| bool ShelfButtonIsInDrag(const ShelfItemType item_type, |
| const views::View* item_view) { |
| switch (item_type) { |
| case TYPE_PINNED_APP: |
| case TYPE_BROWSER_SHORTCUT: |
| case TYPE_APP: |
| return static_cast<const ShelfAppButton*>(item_view)->state() & |
| ShelfAppButton::STATE_DRAGGING; |
| case TYPE_DIALOG: |
| case TYPE_BACK_BUTTON: |
| case TYPE_APP_LIST: |
| case TYPE_UNDEFINED: |
| return false; |
| } |
| } |
| |
| } // namespace |
| |
| // AnimationDelegate used when deleting an item. This steadily decreased the |
| // opacity of the layer as the animation progress. |
| class ShelfView::FadeOutAnimationDelegate : public gfx::AnimationDelegate { |
| public: |
| FadeOutAnimationDelegate(ShelfView* host, views::View* view) |
| : shelf_view_(host), view_(view) {} |
| ~FadeOutAnimationDelegate() override = default; |
| |
| // AnimationDelegate overrides: |
| void AnimationProgressed(const Animation* animation) override { |
| view_->layer()->SetOpacity(1 - animation->GetCurrentValue()); |
| view_->layer()->ScheduleDraw(); |
| } |
| void AnimationEnded(const Animation* animation) override { |
| shelf_view_->OnFadeOutAnimationEnded(); |
| } |
| void AnimationCanceled(const Animation* animation) override {} |
| |
| private: |
| ShelfView* shelf_view_; |
| std::unique_ptr<views::View> view_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FadeOutAnimationDelegate); |
| }; |
| |
| // AnimationDelegate used to trigger fading an element in. When an item is |
| // inserted this delegate is attached to the animation that expands the size of |
| // the item. When done it kicks off another animation to fade the item in. |
| class ShelfView::StartFadeAnimationDelegate : public gfx::AnimationDelegate { |
| public: |
| StartFadeAnimationDelegate(ShelfView* host, views::View* view) |
| : shelf_view_(host), view_(view) {} |
| ~StartFadeAnimationDelegate() override = default; |
| |
| // AnimationDelegate overrides: |
| void AnimationEnded(const Animation* animation) override { |
| shelf_view_->FadeIn(view_); |
| } |
| void AnimationCanceled(const Animation* animation) override { |
| view_->layer()->SetOpacity(1.0f); |
| } |
| |
| private: |
| ShelfView* shelf_view_; |
| views::View* view_; |
| |
| DISALLOW_COPY_AND_ASSIGN(StartFadeAnimationDelegate); |
| }; |
| |
| // static |
| const int ShelfView::kMinimumDragDistance = 8; |
| |
| ShelfView::ShelfView(ShelfModel* model, Shelf* shelf, ShelfWidget* shelf_widget) |
| : model_(model), |
| shelf_(shelf), |
| shelf_widget_(shelf_widget), |
| view_model_(new views::ViewModel), |
| bounds_animator_(std::make_unique<views::BoundsAnimator>(this)), |
| tooltip_(this), |
| focus_search_(std::make_unique<ShelfFocusSearch>(this)), |
| weak_factory_(this) { |
| DCHECK(model_); |
| DCHECK(shelf_); |
| DCHECK(shelf_widget_); |
| Shell::Get()->tablet_mode_controller()->AddObserver(this); |
| Shell::Get()->system_tray_model()->virtual_keyboard()->AddObserver(this); |
| bounds_animator_->AddObserver(this); |
| set_context_menu_controller(this); |
| } |
| |
| ShelfView::~ShelfView() { |
| // Shell destroys the TabletModeController before destroying all root windows. |
| if (Shell::Get()->tablet_mode_controller()) |
| Shell::Get()->tablet_mode_controller()->RemoveObserver(this); |
| Shell::Get()->system_tray_model()->virtual_keyboard()->RemoveObserver(this); |
| bounds_animator_->RemoveObserver(this); |
| model_->RemoveObserver(this); |
| } |
| |
| void ShelfView::Init() { |
| model_->AddObserver(this); |
| |
| // Add the background view behind the app list and back buttons first, so |
| // that other views will appear above it. |
| back_and_app_list_background_ = new views::View(); |
| back_and_app_list_background_->set_can_process_events_within_subtree(false); |
| back_and_app_list_background_->SetBackground( |
| CreateBackgroundFromPainter(views::Painter::CreateSolidRoundRectPainter( |
| kShelfControlPermanentHighlightBackground, |
| ShelfConstants::control_border_radius()))); |
| ConfigureChildView(back_and_app_list_background_); |
| AddChildView(back_and_app_list_background_); |
| |
| const ShelfItems& items(model_->items()); |
| for (ShelfItems::const_iterator i = items.begin(); i != items.end(); ++i) { |
| views::View* child = CreateViewForItem(*i); |
| child->SetPaintToLayer(); |
| view_model_->Add(child, static_cast<int>(i - items.begin())); |
| AddChildView(child); |
| } |
| overflow_button_ = new OverflowButton(this, shelf_); |
| ConfigureChildView(overflow_button_); |
| AddChildView(overflow_button_); |
| UpdateBackButton(); |
| |
| separator_ = new views::Separator(); |
| separator_->SetColor(kSeparatorColor); |
| separator_->SetPreferredHeight(kSeparatorSize); |
| separator_->SetVisible(false); |
| ConfigureChildView(separator_); |
| AddChildView(separator_); |
| |
| // We'll layout when our bounds change. |
| } |
| |
| void ShelfView::OnShelfAlignmentChanged() { |
| LayoutToIdealBounds(); |
| for (int i = 0; i < view_model_->view_size(); ++i) { |
| if (i >= first_visible_index_ && i <= last_visible_index_) |
| view_model_->view_at(i)->Layout(); |
| } |
| tooltip_.Close(); |
| if (overflow_bubble_) |
| overflow_bubble_->Hide(); |
| // For crbug.com/587931, because AppListButton layout logic is in OnPaint. |
| AppListButton* app_list_button = GetAppListButton(); |
| if (app_list_button) |
| app_list_button->SchedulePaint(); |
| |
| GetFocusManager()->set_arrow_key_traversal_enabled( |
| !shelf_->IsHorizontalAlignment()); |
| } |
| |
| gfx::Rect ShelfView::GetIdealBoundsOfItemIcon(const ShelfID& id) { |
| int index = model_->ItemIndexByID(id); |
| if (index < 0 || last_visible_index_ < 0 || index >= view_model_->view_size()) |
| return gfx::Rect(); |
| |
| // Map items in the overflow bubble to the overflow button. |
| if (index > last_visible_index_) |
| return GetMirroredRect(overflow_button_->bounds()); |
| |
| const gfx::Rect& ideal_bounds(view_model_->ideal_bounds(index)); |
| views::View* view = view_model_->view_at(index); |
| // The app list and back button are not ShelfAppButton subclass instances. |
| if (view == GetAppListButton() || view == GetBackButton()) |
| return GetMirroredRect(ideal_bounds); |
| |
| CHECK_EQ(ShelfAppButton::kViewClassName, view->GetClassName()); |
| ShelfAppButton* button = static_cast<ShelfAppButton*>(view); |
| gfx::Rect icon_bounds = button->GetIconBounds(); |
| return gfx::Rect(GetMirroredXWithWidthInView( |
| ideal_bounds.x() + icon_bounds.x(), icon_bounds.width()), |
| ideal_bounds.y() + icon_bounds.y(), icon_bounds.width(), |
| icon_bounds.height()); |
| } |
| |
| bool ShelfView::IsShowingMenu() const { |
| return shelf_menu_model_adapter_ && |
| shelf_menu_model_adapter_->IsShowingMenu(); |
| } |
| |
| bool ShelfView::IsShowingMenuForView(const views::View* view) const { |
| return IsShowingMenu() && |
| shelf_menu_model_adapter_->IsShowingMenuForView(*view); |
| } |
| |
| bool ShelfView::IsShowingOverflowBubble() const { |
| return overflow_bubble_.get() && overflow_bubble_->IsShowing(); |
| } |
| |
| AppListButton* ShelfView::GetAppListButton() const { |
| for (int i = 0; i < model_->item_count(); ++i) { |
| if (model_->items()[i].type == TYPE_APP_LIST) { |
| views::View* view = view_model_->view_at(i); |
| CHECK_EQ(AppListButton::kViewClassName, view->GetClassName()); |
| return static_cast<AppListButton*>(view); |
| } |
| } |
| |
| NOTREACHED() << "Applist button not found"; |
| return nullptr; |
| } |
| |
| BackButton* ShelfView::GetBackButton() const { |
| for (int i = 0; i < model_->item_count(); ++i) { |
| if (model_->items()[i].type == TYPE_BACK_BUTTON) { |
| views::View* view = view_model_->view_at(i); |
| CHECK_EQ(BackButton::kViewClassName, view->GetClassName()); |
| return static_cast<BackButton*>(view); |
| } |
| } |
| |
| NOTREACHED() << "Back button not found"; |
| return nullptr; |
| } |
| |
| OverflowButton* ShelfView::GetOverflowButton() const { |
| return overflow_button_; |
| } |
| |
| void ShelfView::UpdateVisibleShelfItemBoundsUnion() { |
| visible_shelf_item_bounds_union_.SetRect(0, 0, 0, 0); |
| for (int i = first_visible_index_; i <= last_visible_index_; ++i) { |
| const views::View* child = view_model_->view_at(i); |
| // Since shelf items are centered, we don't want to include the app list |
| // button, otherwise tooltips will show when hovering a potentially large |
| // amount of white space between the app list button and the first item. |
| if (child == GetAppListButton()) |
| continue; |
| if (!IsTabletModeEnabled() && child == GetBackButton()) |
| continue; |
| if (ShouldShowTooltipForView(child)) |
| visible_shelf_item_bounds_union_.Union(child->GetMirroredBounds()); |
| } |
| // Also include the overflow button if it is visible. |
| if (overflow_button_->visible()) { |
| visible_shelf_item_bounds_union_.Union( |
| overflow_button_->GetMirroredBounds()); |
| } |
| } |
| |
| bool ShelfView::ShouldHideTooltip(const gfx::Point& cursor_location) const { |
| // If this is the app list button, only show the tooltip if the app list is |
| // not already showing. |
| const AppListButton* app_list_button = GetAppListButton(); |
| if (app_list_button && |
| app_list_button->GetMirroredBounds().Contains(cursor_location)) { |
| return app_list_button->is_showing_app_list(); |
| } |
| return !visible_shelf_item_bounds_union_.Contains(cursor_location); |
| } |
| |
| bool ShelfView::ShouldShowTooltipForView(const views::View* view) const { |
| // If this is the app list button, only show the tooltip if the app list is |
| // not already showing. |
| if (view == GetAppListButton()) |
| return !GetAppListButton()->is_showing_app_list(); |
| if (view == overflow_button_) |
| return true; |
| // Don't show a tooltip for a view that's currently being dragged. |
| if (view == drag_view_) |
| return false; |
| |
| return ShelfItemForView(view) && !IsShowingMenuForView(view); |
| } |
| |
| gfx::Rect ShelfView::GetVisibleItemsBoundsInScreen() { |
| gfx::Size preferred_size = GetPreferredSize(); |
| gfx::Point origin(GetMirroredXWithWidthInView(0, preferred_size.width()), 0); |
| ConvertPointToScreen(this, &origin); |
| return gfx::Rect(origin, preferred_size); |
| } |
| |
| gfx::Size ShelfView::CalculatePreferredSize() const { |
| gfx::Rect overflow_bounds; |
| CalculateIdealBounds(&overflow_bounds); |
| |
| int last_button_index = last_visible_index_; |
| if (!is_overflow_mode() && overflow_button_ && overflow_button_->visible()) |
| ++last_button_index; |
| |
| // When an item is dragged off from the overflow bubble, it is moved to last |
| // position and and changed to invisible. Overflow bubble size should be |
| // shrunk to fit only for visible items. |
| // If |dragged_to_another_shelf_| is set, there will be no |
| // invisible items in the shelf. |
| if (is_overflow_mode() && dragged_off_shelf_ && !dragged_to_another_shelf_ && |
| RemovableByRipOff(view_model_->GetIndexOfView(drag_view_)) == REMOVABLE) |
| last_button_index--; |
| |
| const gfx::Rect last_button_bounds = |
| last_button_index >= first_visible_index_ |
| ? view_model_->ideal_bounds(last_button_index) |
| : gfx::Rect(gfx::Size(ShelfConstants::shelf_size(), |
| ShelfConstants::shelf_size())); |
| |
| if (shelf_->IsHorizontalAlignment()) |
| return gfx::Size(last_button_bounds.right(), ShelfConstants::shelf_size()); |
| |
| return gfx::Size(ShelfConstants::shelf_size(), last_button_bounds.bottom()); |
| } |
| |
| void ShelfView::OnBoundsChanged(const gfx::Rect& previous_bounds) { |
| // This bounds change is produced by the shelf movement (rotation, alignment |
| // change, etc.) and all content has to follow. Using an animation at that |
| // time would produce a time lag since the animation of the BoundsAnimator has |
| // itself a delay before it arrives at the required location. As such we tell |
| // the animator to go there immediately. We still want to use an animation |
| // when the bounds change is caused by entering or exiting tablet mode. |
| if (shelf_->is_tablet_mode_animation_running()) { |
| AnimateToIdealBounds(); |
| if (IsShowingOverflowBubble()) { |
| overflow_bubble_->bubble_view()->shelf_view()->OnBoundsChanged( |
| previous_bounds); |
| } |
| return; |
| } |
| |
| BoundsAnimatorDisabler disabler(bounds_animator_.get()); |
| |
| LayoutToIdealBounds(); |
| shelf_->NotifyShelfIconPositionsChanged(); |
| |
| if (IsShowingOverflowBubble()) |
| overflow_bubble_->Hide(); |
| } |
| |
| views::FocusTraversable* ShelfView::GetPaneFocusTraversable() { |
| return this; |
| } |
| |
| void ShelfView::GetAccessibleNodeData(ui::AXNodeData* node_data) { |
| node_data->role = ax::mojom::Role::kToolbar; |
| node_data->SetName(l10n_util::GetStringUTF8(IDS_ASH_SHELF_ACCESSIBLE_NAME)); |
| } |
| |
| View* ShelfView::GetTooltipHandlerForPoint(const gfx::Point& point) { |
| // Similar implementation as views::View, but without going into each |
| // child's subviews. |
| View::Views children = GetChildrenInZOrder(); |
| for (auto* child : base::Reversed(children)) { |
| if (!child->visible()) |
| continue; |
| |
| gfx::Point point_in_child_coords(point); |
| ConvertPointToTarget(this, child, &point_in_child_coords); |
| if (child->HitTestPoint(point_in_child_coords) && |
| ShouldShowTooltipForView(child)) { |
| return child; |
| } |
| } |
| // If none of our children qualifies, just return the shelf view itself. |
| return this; |
| } |
| |
| void ShelfView::ButtonPressed(views::Button* sender, |
| const ui::Event& event, |
| views::InkDrop* ink_drop) { |
| // Press the shelf item in the auto-hide shelf should not open the |
| // corresponding app window. The event can still be received by auto-hide |
| // shelf since we reserved portion of the auto-hide shelf within the screen |
| // bounds. |
| if (!shelf_->IsVisible()) |
| return; |
| |
| if (sender == overflow_button_) { |
| ToggleOverflowBubble(); |
| shelf_button_pressed_metric_tracker_.ButtonPressed(event, sender, |
| SHELF_ACTION_NONE); |
| return; |
| } |
| |
| // None of the checks in ShouldEventActivateButton() affects overflow button. |
| // So, it is safe to be checked after handling overflow button. |
| if (!ShouldEventActivateButton(sender, event)) |
| return; |
| |
| // Prevent concurrent requests that may show application or context menus. |
| // If a second request is sent before the first one can respond, the Chrome |
| // side ShelfItemDelegate may become unresponsive: https://crbug.com/881886 |
| if (!item_awaiting_response_.IsNull()) { |
| const ShelfItem* item = ShelfItemForView(sender); |
| if (item && item->id != item_awaiting_response_) |
| ink_drop->AnimateToState(views::InkDropState::DEACTIVATED); |
| return; |
| } |
| |
| // Ensure the keyboard is hidden and stays hidden (as long as it isn't locked) |
| if (keyboard::KeyboardController::Get()->IsEnabled()) |
| keyboard::KeyboardController::Get()->HideKeyboardExplicitlyBySystem(); |
| |
| // Close the overflow bubble if an item on either shelf is clicked. Press |
| // events elsewhere will close the overflow shelf via OverflowBubble's |
| // EventHandler functionality. |
| ShelfView* shelf_view = main_shelf_ ? main_shelf_ : this; |
| if (shelf_view->IsShowingOverflowBubble()) |
| shelf_view->ToggleOverflowBubble(); |
| |
| // Record the index for the last pressed shelf item. |
| last_pressed_index_ = view_model_->GetIndexOfView(sender); |
| DCHECK_LT(-1, last_pressed_index_); |
| |
| // Place new windows on the same display as the button. |
| aura::Window* window = sender->GetWidget()->GetNativeWindow(); |
| scoped_root_window_for_new_windows_ = |
| std::make_unique<ScopedRootWindowForNewWindows>(window->GetRootWindow()); |
| |
| // Slow down activation animations if shift key is pressed. |
| std::unique_ptr<ui::ScopedAnimationDurationScaleMode> slowing_animations; |
| if (event.IsShiftDown()) { |
| slowing_animations.reset(new ui::ScopedAnimationDurationScaleMode( |
| ui::ScopedAnimationDurationScaleMode::SLOW_DURATION)); |
| } |
| |
| // Collect usage statistics before we decide what to do with the click. |
| switch (model_->items()[last_pressed_index_].type) { |
| case TYPE_PINNED_APP: |
| case TYPE_BROWSER_SHORTCUT: |
| case TYPE_APP: |
| Shell::Get()->metrics()->RecordUserMetricsAction( |
| UMA_LAUNCHER_CLICK_ON_APP); |
| break; |
| |
| case TYPE_APP_LIST: |
| Shell::Get()->metrics()->RecordUserMetricsAction( |
| UMA_LAUNCHER_CLICK_ON_APPLIST_BUTTON); |
| break; |
| |
| case TYPE_BACK_BUTTON: |
| case TYPE_DIALOG: |
| break; |
| |
| case TYPE_UNDEFINED: |
| NOTREACHED() << "ShelfItemType must be set."; |
| break; |
| } |
| |
| // Run AfterItemSelected directly if the item has no delegate (ie. in tests). |
| const ShelfItem& item = model_->items()[last_pressed_index_]; |
| if (!model_->GetShelfItemDelegate(item.id)) { |
| AfterItemSelected(item, sender, ui::Event::Clone(event), ink_drop, |
| SHELF_ACTION_NONE, base::nullopt); |
| return; |
| } |
| |
| // Notify the item of its selection; handle the result in AfterItemSelected. |
| item_awaiting_response_ = item.id; |
| model_->GetShelfItemDelegate(item.id)->ItemSelected( |
| ui::Event::Clone(event), GetDisplayIdForView(this), LAUNCH_FROM_UNKNOWN, |
| base::BindOnce(&ShelfView::AfterItemSelected, weak_factory_.GetWeakPtr(), |
| item, sender, base::Passed(ui::Event::Clone(event)), |
| ink_drop)); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // ShelfView, FocusTraversable implementation: |
| |
| views::FocusSearch* ShelfView::GetFocusSearch() { |
| return focus_search_.get(); |
| } |
| |
| views::FocusTraversable* ShelfView::GetFocusTraversableParent() { |
| return parent()->GetFocusTraversable(); |
| } |
| |
| View* ShelfView::GetFocusTraversableParentView() { |
| return this; |
| } |
| |
| void ShelfView::CreateDragIconProxy( |
| const gfx::Point& location_in_screen_coordinates, |
| const gfx::ImageSkia& icon, |
| views::View* replaced_view, |
| const gfx::Vector2d& cursor_offset_from_center, |
| float scale_factor) { |
| drag_replaced_view_ = replaced_view; |
| aura::Window* root_window = |
| drag_replaced_view_->GetWidget()->GetNativeWindow()->GetRootWindow(); |
| drag_image_ = std::make_unique<DragImageView>( |
| root_window, ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE); |
| drag_image_->SetImage(icon); |
| gfx::Size size = drag_image_->GetPreferredSize(); |
| size.set_width(size.width() * scale_factor); |
| size.set_height(size.height() * scale_factor); |
| drag_image_offset_ = gfx::Vector2d(size.width() / 2, size.height() / 2) + |
| cursor_offset_from_center; |
| gfx::Rect drag_image_bounds( |
| location_in_screen_coordinates - drag_image_offset_, size); |
| drag_image_->SetBoundsInScreen(drag_image_bounds); |
| drag_image_->SetWidgetVisible(true); |
| } |
| |
| void ShelfView::OnTabletModeStarted() { |
| // Close all menus when tablet mode starts to ensure that the clamshell only |
| // context menu options are not available in tablet mode. |
| if (shelf_menu_model_adapter_) |
| shelf_menu_model_adapter_->Cancel(); |
| } |
| |
| void ShelfView::OnTabletModeEnded() { |
| // Close all menus when tablet mode ends so that menu options are kept |
| // consistent with device state. |
| if (shelf_menu_model_adapter_) |
| shelf_menu_model_adapter_->Cancel(); |
| } |
| |
| void ShelfView::OnVirtualKeyboardVisibilityChanged() { |
| LayoutToIdealBounds(); |
| } |
| |
| void ShelfView::CreateDragIconProxyByLocationWithNoAnimation( |
| const gfx::Point& origin_in_screen_coordinates, |
| const gfx::ImageSkia& icon, |
| views::View* replaced_view, |
| float scale_factor, |
| int blur_radius) { |
| drag_replaced_view_ = replaced_view; |
| aura::Window* root_window = |
| drag_replaced_view_->GetWidget()->GetNativeWindow()->GetRootWindow(); |
| drag_image_ = std::make_unique<DragImageView>( |
| root_window, ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE); |
| if (blur_radius > 0) |
| SetDragImageBlur(icon.size(), blur_radius); |
| drag_image_->SetImage(icon); |
| gfx::Size size = drag_image_->GetPreferredSize(); |
| size.set_width(size.width() * scale_factor); |
| size.set_height(size.height() * scale_factor); |
| gfx::Rect drag_image_bounds(origin_in_screen_coordinates, size); |
| drag_image_->SetBoundsInScreen(drag_image_bounds); |
| |
| // Turn off the default visibility animation. |
| drag_image_->GetWidget()->SetVisibilityAnimationTransition( |
| views::Widget::ANIMATE_NONE); |
| drag_image_->SetWidgetVisible(true); |
| } |
| |
| void ShelfView::UpdateDragIconProxy( |
| const gfx::Point& location_in_screen_coordinates) { |
| // TODO(jennyz): Investigate why drag_image_ becomes null at this point per |
| // crbug.com/34722, while the app list item is still being dragged around. |
| if (drag_image_) { |
| drag_image_->SetScreenPosition(location_in_screen_coordinates - |
| drag_image_offset_); |
| } |
| } |
| |
| void ShelfView::UpdateDragIconProxyByLocation( |
| const gfx::Point& origin_in_screen_coordinates) { |
| if (drag_image_) |
| drag_image_->SetScreenPosition(origin_in_screen_coordinates); |
| } |
| |
| bool ShelfView::IsDraggedView(const ShelfAppButton* view) const { |
| return drag_view_ == view; |
| } |
| |
| const std::vector<aura::Window*> ShelfView::GetOpenWindowsForShelfView( |
| views::View* view) { |
| std::vector<aura::Window*> window_list = |
| Shell::Get()->mru_window_tracker()->BuildWindowForCycleList(); |
| std::vector<aura::Window*> open_windows; |
| const ShelfItem* item = ShelfItemForView(view); |
| |
| // The concept of a list of open windows doesn't make sense for something |
| // that isn't an app shortcut: return an empty list. |
| if (!item) |
| return open_windows; |
| |
| for (auto* window : window_list) { |
| const std::string window_app_id = |
| ShelfID::Deserialize(window->GetProperty(kShelfIDKey)).app_id; |
| if (window_app_id == item->id.app_id) { |
| // TODO: In the very first version we only show one window. Add the proper |
| // UI to show all windows for a given open app. |
| open_windows.push_back(window); |
| } |
| } |
| return open_windows; |
| } |
| |
| void ShelfView::DestroyDragIconProxy() { |
| drag_image_.reset(); |
| drag_image_offset_ = gfx::Vector2d(0, 0); |
| } |
| |
| bool ShelfView::StartDrag(const std::string& app_id, |
| const gfx::Point& location_in_screen_coordinates) { |
| // Bail if an operation is already going on - or the cursor is not inside. |
| // This could happen if mouse / touch operations overlap. |
| if (!drag_and_drop_shelf_id_.IsNull() || app_id.empty() || |
| !GetBoundsInScreen().Contains(location_in_screen_coordinates)) |
| return false; |
| |
| // If the AppsGridView (which was dispatching this event) was opened by our |
| // button, ShelfView dragging operations are locked and we have to unlock. |
| CancelDrag(-1); |
| drag_and_drop_item_pinned_ = false; |
| drag_and_drop_shelf_id_ = ShelfID(app_id); |
| // Check if the application is pinned - if not, we have to pin it so |
| // that we can re-arrange the shelf order accordingly. Note that items have |
| // to be pinned to give them the same (order) possibilities as a shortcut. |
| // When an item is dragged from overflow to shelf, IsShowingOverflowBubble() |
| // returns true. At this time, we don't need to pin the item. |
| if (!IsShowingOverflowBubble() && !model_->IsAppPinned(app_id)) { |
| model_->PinAppWithID(app_id); |
| drag_and_drop_item_pinned_ = true; |
| } |
| views::View* drag_and_drop_view = |
| view_model_->view_at(model_->ItemIndexByID(drag_and_drop_shelf_id_)); |
| DCHECK(drag_and_drop_view); |
| |
| // Since there is already an icon presented by the caller, we hide this item |
| // for now. That has to be done by reducing the size since the visibility will |
| // change once a regrouping animation is performed. |
| pre_drag_and_drop_size_ = drag_and_drop_view->size(); |
| drag_and_drop_view->SetSize(gfx::Size()); |
| |
| // First we have to center the mouse cursor over the item. |
| gfx::Point pt = drag_and_drop_view->GetBoundsInScreen().CenterPoint(); |
| views::View::ConvertPointFromScreen(drag_and_drop_view, &pt); |
| gfx::Point point_in_root = location_in_screen_coordinates; |
| ::wm::ConvertPointFromScreen( |
| wm::GetRootWindowAt(location_in_screen_coordinates), &point_in_root); |
| ui::MouseEvent event(ui::ET_MOUSE_PRESSED, pt, point_in_root, |
| ui::EventTimeForNow(), 0, 0); |
| PointerPressedOnButton(drag_and_drop_view, DRAG_AND_DROP, event); |
| |
| // Drag the item where it really belongs. |
| Drag(location_in_screen_coordinates); |
| return true; |
| } |
| |
| bool ShelfView::Drag(const gfx::Point& location_in_screen_coordinates) { |
| if (drag_and_drop_shelf_id_.IsNull() || |
| !GetBoundsInScreen().Contains(location_in_screen_coordinates)) |
| return false; |
| |
| gfx::Point pt = location_in_screen_coordinates; |
| views::View* drag_and_drop_view = |
| view_model_->view_at(model_->ItemIndexByID(drag_and_drop_shelf_id_)); |
| ConvertPointFromScreen(drag_and_drop_view, &pt); |
| gfx::Point point_in_root = location_in_screen_coordinates; |
| ::wm::ConvertPointFromScreen( |
| wm::GetRootWindowAt(location_in_screen_coordinates), &point_in_root); |
| ui::MouseEvent event(ui::ET_MOUSE_DRAGGED, pt, point_in_root, |
| ui::EventTimeForNow(), 0, 0); |
| PointerDraggedOnButton(drag_and_drop_view, DRAG_AND_DROP, event); |
| return true; |
| } |
| |
| void ShelfView::EndDrag(bool cancel) { |
| drag_scroll_dir_ = 0; |
| scrolling_timer_.Stop(); |
| speed_up_drag_scrolling_.Stop(); |
| |
| if (drag_and_drop_shelf_id_.IsNull()) |
| return; |
| |
| views::View* drag_and_drop_view = |
| view_model_->view_at(model_->ItemIndexByID(drag_and_drop_shelf_id_)); |
| PointerReleasedOnButton(drag_and_drop_view, DRAG_AND_DROP, cancel); |
| |
| // Either destroy the temporarily created item - or - make the item visible. |
| if (drag_and_drop_item_pinned_ && cancel) { |
| model_->UnpinAppWithID(drag_and_drop_shelf_id_.app_id); |
| } else if (drag_and_drop_view) { |
| if (cancel) { |
| // When a hosted drag gets canceled, the item can remain in the same slot |
| // and it might have moved within the bounds. In that case the item need |
| // to animate back to its correct location. |
| AnimateToIdealBounds(); |
| } else { |
| drag_and_drop_view->SetSize(pre_drag_and_drop_size_); |
| } |
| } |
| |
| drag_and_drop_shelf_id_ = ShelfID(); |
| } |
| |
| bool ShelfView::ShouldEventActivateButton(View* view, const ui::Event& event) { |
| if (dragging()) |
| return false; |
| |
| // Ignore if we are already in a pointer event sequence started with a repost |
| // event on the same shelf item. See crbug.com/343005 for more detail. |
| if (is_repost_event_on_same_item_) |
| return false; |
| |
| // Don't activate the item twice on double-click. Otherwise the window starts |
| // animating open due to the first click, then immediately minimizes due to |
| // the second click. The user most likely intended to open or minimize the |
| // item once, not do both. |
| if (event.flags() & ui::EF_IS_DOUBLE_CLICK) |
| return false; |
| |
| // Ignore if this is a repost event on the last pressed shelf item. |
| int index = view_model_->GetIndexOfView(view); |
| if (index == -1) |
| return false; |
| return !IsRepostEvent(event) || last_pressed_index_ != index; |
| } |
| |
| void ShelfView::PointerPressedOnButton(views::View* view, |
| Pointer pointer, |
| const ui::LocatedEvent& event) { |
| if (drag_view_) |
| return; |
| |
| if (IsShowingMenu()) |
| shelf_menu_model_adapter_->Cancel(); |
| |
| int index = view_model_->GetIndexOfView(view); |
| if (index == -1 || view_model_->view_size() <= 1) |
| return; // View is being deleted, ignore request. |
| |
| if (view == GetAppListButton() || view == GetBackButton()) |
| return; // Views are not draggable, ignore request. |
| |
| // Only when the repost event occurs on the same shelf item, we should ignore |
| // the call in ShelfView::ButtonPressed(...). |
| is_repost_event_on_same_item_ = |
| IsRepostEvent(event) && (last_pressed_index_ == index); |
| |
| CHECK_EQ(ShelfAppButton::kViewClassName, view->GetClassName()); |
| drag_view_ = static_cast<ShelfAppButton*>(view); |
| drag_origin_ = gfx::Point(event.x(), event.y()); |
| UMA_HISTOGRAM_ENUMERATION("Ash.ShelfAlignmentUsage", |
| static_cast<ShelfAlignmentUmaEnumValue>( |
| shelf_->SelectValueForShelfAlignment( |
| SHELF_ALIGNMENT_UMA_ENUM_VALUE_BOTTOM, |
| SHELF_ALIGNMENT_UMA_ENUM_VALUE_LEFT, |
| SHELF_ALIGNMENT_UMA_ENUM_VALUE_RIGHT)), |
| SHELF_ALIGNMENT_UMA_ENUM_VALUE_COUNT); |
| } |
| |
| void ShelfView::PointerDraggedOnButton(views::View* view, |
| Pointer pointer, |
| const ui::LocatedEvent& event) { |
| if (CanPrepareForDrag(pointer, event)) |
| PrepareForDrag(pointer, event); |
| |
| if (drag_pointer_ == pointer) |
| ContinueDrag(event); |
| } |
| |
| void ShelfView::PointerReleasedOnButton(views::View* view, |
| Pointer pointer, |
| bool canceled) { |
| drag_scroll_dir_ = 0; |
| scrolling_timer_.Stop(); |
| speed_up_drag_scrolling_.Stop(); |
| |
| is_repost_event_on_same_item_ = false; |
| |
| if (canceled) { |
| CancelDrag(-1); |
| } else if (drag_pointer_ == pointer) { |
| FinalizeRipOffDrag(false); |
| drag_pointer_ = NONE; |
| AnimateToIdealBounds(); |
| } |
| // If the drag pointer is NONE, no drag operation is going on and the |
| // drag_view can be released. |
| if (drag_pointer_ == NONE) |
| drag_view_ = nullptr; |
| } |
| |
| void ShelfView::LayoutToIdealBounds() { |
| if (bounds_animator_->IsAnimating()) { |
| AnimateToIdealBounds(); |
| return; |
| } |
| |
| gfx::Rect overflow_bounds; |
| CalculateIdealBounds(&overflow_bounds); |
| views::ViewModelUtils::SetViewBoundsToIdealBounds(*view_model_); |
| overflow_button_->SetBoundsRect(overflow_bounds); |
| UpdateBackButton(); |
| LayoutAppListAndBackButtonHighlight(); |
| UpdateVisibleShelfItemBoundsUnion(); |
| } |
| |
| bool ShelfView::IsItemPinned(const ShelfItem& item) const { |
| return item.type == TYPE_PINNED_APP || item.type == TYPE_BROWSER_SHORTCUT; |
| } |
| |
| int ShelfView::GetSeparatorIndex() const { |
| for (int i = 0; i < model_->item_count() - 1; ++i) { |
| if (IsItemPinned(model_->items()[i]) && |
| model_->items()[i + 1].type == TYPE_APP) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| int ShelfView::GetDimensionOfCenteredShelfItems() const { |
| int size = 0; |
| int added_items = 0; |
| for (ShelfItem item : model_->items()) { |
| if (item.type == TYPE_PINNED_APP || item.type == TYPE_APP || |
| item.type == TYPE_BROWSER_SHORTCUT) { |
| size += ShelfConstants::button_size(); |
| added_items++; |
| } |
| } |
| size += (added_items - 1) * ShelfConstants::button_spacing(); |
| return size; |
| } |
| |
| void ShelfView::OnTabletModeChanged() { |
| OnBoundsChanged(GetBoundsInScreen()); |
| } |
| |
| void ShelfView::UpdateAllButtonsVisibilityInOverflowMode() { |
| // The overflow button is not shown in overflow mode. |
| overflow_button_->SetVisible(false); |
| DCHECK_LT(last_visible_index_, view_model_->view_size()); |
| for (int i = 0; i < view_model_->view_size(); ++i) { |
| bool visible = i >= first_visible_index_ && i <= last_visible_index_; |
| // To track the dragging of |drag_view_| continuously, its visibility |
| // should be always true regardless of its position. |
| if (dragged_to_another_shelf_ && view_model_->view_at(i) == drag_view_) |
| view_model_->view_at(i)->SetVisible(true); |
| else |
| view_model_->view_at(i)->SetVisible(visible); |
| } |
| } |
| |
| void ShelfView::LayoutAppListAndBackButtonHighlight() const { |
| // Don't show anything if this is the overflow menu. |
| if (is_overflow_mode()) { |
| back_and_app_list_background_->SetVisible(false); |
| return; |
| } |
| const int button_spacing = ShelfConstants::button_spacing(); |
| // "Secondary" as in "orthogonal to the shelf primary axis". |
| const int control_secondary_padding = |
| (ShelfConstants::shelf_size() - kShelfControlSize) / 2; |
| const int back_and_app_list_background_size = |
| kShelfControlSize + |
| (IsTabletModeEnabled() ? kShelfControlSize + button_spacing : 0); |
| back_and_app_list_background_->SetBounds( |
| shelf_->PrimaryAxisValue(button_spacing, control_secondary_padding), |
| shelf_->PrimaryAxisValue(control_secondary_padding, button_spacing), |
| shelf_->PrimaryAxisValue(back_and_app_list_background_size, |
| kShelfControlSize), |
| shelf_->PrimaryAxisValue(kShelfControlSize, |
| back_and_app_list_background_size)); |
| } |
| |
| void ShelfView::CalculateIdealBounds(gfx::Rect* overflow_bounds) const { |
| DCHECK(model_->item_count() == view_model_->view_size()); |
| |
| const int button_spacing = ShelfConstants::button_spacing(); |
| const int button_size = ShelfConstants::button_size(); |
| |
| const int available_size = shelf_->PrimaryAxisValue(width(), height()); |
| const int separator_index = GetSeparatorIndex(); |
| const bool virtual_keyboard_visible = |
| Shell::Get()->system_tray_model()->virtual_keyboard()->visible(); |
| // Don't show the separator if it isn't needed, or would appear after all |
| // visible items. |
| separator_->SetVisible(separator_index != -1 && |
| separator_index < last_visible_index_ && |
| !virtual_keyboard_visible); |
| int app_list_button_position; |
| |
| int x = 0; |
| int y = 0; |
| |
| int w = shelf_->PrimaryAxisValue(button_size, width()); |
| int h = shelf_->PrimaryAxisValue(height(), button_size); |
| |
| for (int i = 0; i < view_model_->view_size(); ++i) { |
| if (i < first_visible_index_) { |
| // This happens for the overflow view. |
| view_model_->set_ideal_bounds(i, gfx::Rect(x, y, 0, 0)); |
| continue; |
| } |
| if (i == kAppListButtonIndex + 1) { |
| // Start centering after we've laid out the app list button. |
| // Center the shelf items on the whole shelf, including the status |
| // area widget. |
| int centered_shelf_items_size = GetDimensionOfCenteredShelfItems(); |
| StatusAreaWidget* status_widget = shelf_widget_->status_area_widget(); |
| int status_widget_size = |
| status_widget ? shelf_->PrimaryAxisValue( |
| status_widget->GetWindowBoundsInScreen().width(), |
| status_widget->GetWindowBoundsInScreen().height()) |
| : 0; |
| int padding_for_centering = |
| (available_size + status_widget_size - centered_shelf_items_size) / 2; |
| if (padding_for_centering > |
| app_list_button_position + kAppListButtonMargin) { |
| // Only shift buttons to the right, never let them interfere with the |
| // left-aligned system buttons. |
| x = shelf_->PrimaryAxisValue(padding_for_centering, 0); |
| y = shelf_->PrimaryAxisValue(0, padding_for_centering); |
| } |
| } |
| |
| view_model_->set_ideal_bounds(i, gfx::Rect(x, y, w, h)); |
| // If not in tablet mode do not increase |x| or |y|. Instead just let the |
| // next item (app list button) cover the back button, which will have |
| // opacity 0 anyways. |
| if (i == kBackButtonIndex && !IsTabletModeEnabled()) |
| continue; |
| |
| // There is no spacing between the first two elements. Do not worry about y |
| // since the back button only appears in tablet mode, which forces the shelf |
| // to be bottom aligned. |
| x = shelf_->PrimaryAxisValue(x + w + (i == 0 ? 0 : button_spacing), x); |
| y = shelf_->PrimaryAxisValue(y, y + h + button_spacing); |
| |
| // In the new UI, padding between the back & app list buttons is smaller |
| // than between all other shelf items. |
| if (i == kBackButtonIndex) |
| x -= button_spacing; |
| |
| if (i == kAppListButtonIndex) { |
| app_list_button_position = shelf_->PrimaryAxisValue(x, y); |
| // A larger minimum padding after the app list button is required: |
| // increment with the necessary extra amount. |
| x += shelf_->PrimaryAxisValue(kAppListButtonMargin - button_spacing, 0); |
| y += shelf_->PrimaryAxisValue(0, kAppListButtonMargin - button_spacing); |
| } |
| |
| if (i == separator_index) { |
| // Place the separator halfway between the two icons it separates, |
| // vertically centered. |
| int half_space = button_spacing / 2; |
| int secondary_offset = |
| (ShelfConstants::shelf_size() - kSeparatorSize) / 2; |
| x -= shelf_->PrimaryAxisValue(half_space, 0); |
| y -= shelf_->PrimaryAxisValue(0, half_space); |
| separator_->SetBounds( |
| x + shelf_->PrimaryAxisValue(0, secondary_offset), |
| y + shelf_->PrimaryAxisValue(secondary_offset, 0), |
| shelf_->PrimaryAxisValue(kSeparatorThickness, kSeparatorSize), |
| shelf_->PrimaryAxisValue(kSeparatorSize, kSeparatorThickness)); |
| x += shelf_->PrimaryAxisValue(half_space, 0); |
| y += shelf_->PrimaryAxisValue(0, half_space); |
| } |
| } |
| |
| if (is_overflow_mode()) { |
| const_cast<ShelfView*>(this)->UpdateAllButtonsVisibilityInOverflowMode(); |
| return; |
| } |
| |
| overflow_bounds->set_size(gfx::Size(shelf_->PrimaryAxisValue(w, width()), |
| shelf_->PrimaryAxisValue(height(), h))); |
| last_visible_index_ = |
| IndexOfLastItemThatFitsSize(available_size - button_spacing); |
| bool show_overflow = last_visible_index_ < model_->item_count() - 1; |
| |
| // Create space for the overflow button and place it in the last visible |
| // position. |
| if (show_overflow && last_visible_index_ > 0) |
| --last_visible_index_; |
| |
| for (int i = 0; i < view_model_->view_size(); ++i) { |
| // To receive drag event continuously from |drag_view_| during the dragging |
| // off from the shelf, don't make |drag_view_| invisible. It will be |
| // eventually invisible and removed from the |view_model_| by |
| // FinalizeRipOffDrag(). |
| if (dragged_off_shelf_ && view_model_->view_at(i) == drag_view_) |
| continue; |
| // If virtual keyboard is visible, only back button and app list button are |
| // shown. |
| const bool is_visible_item = !virtual_keyboard_visible || |
| i == kBackButtonIndex || |
| i == kAppListButtonIndex; |
| view_model_->view_at(i)->SetVisible(i <= last_visible_index_ && |
| is_visible_item); |
| } |
| |
| overflow_button_->SetVisible(show_overflow); |
| if (show_overflow) { |
| DCHECK_NE(0, view_model_->view_size()); |
| if (last_visible_index_ == -1) { |
| x = 0; |
| y = 0; |
| } else { |
| x = shelf_->PrimaryAxisValue( |
| view_model_->ideal_bounds(last_visible_index_).right(), |
| view_model_->ideal_bounds(last_visible_index_).x()); |
| y = shelf_->PrimaryAxisValue( |
| view_model_->ideal_bounds(last_visible_index_).y(), |
| view_model_->ideal_bounds(last_visible_index_).bottom()); |
| } |
| |
| if (last_visible_index_ >= 0) { |
| // Add more space between last visible item and overflow button. |
| // Without this, two buttons look too close compared with other items. |
| x = shelf_->PrimaryAxisValue(x + button_spacing, x); |
| y = shelf_->PrimaryAxisValue(y, y + button_spacing); |
| } |
| |
| overflow_bounds->set_x(x); |
| overflow_bounds->set_y(y); |
| if (overflow_bubble_.get() && overflow_bubble_->IsShowing()) |
| UpdateOverflowRange(overflow_bubble_->bubble_view()->shelf_view()); |
| } else { |
| if (overflow_bubble_) |
| overflow_bubble_->Hide(); |
| } |
| } |
| |
| int ShelfView::IndexOfLastItemThatFitsSize(int max_value) const { |
| int index = model_->item_count() - 1; |
| while (index >= 0 && |
| shelf_->PrimaryAxisValue(view_model_->ideal_bounds(index).right(), |
| view_model_->ideal_bounds(index).bottom()) > |
| max_value) { |
| index--; |
| } |
| return index; |
| } |
| |
| void ShelfView::AnimateToIdealBounds() { |
| gfx::Rect overflow_bounds; |
| CalculateIdealBounds(&overflow_bounds); |
| for (int i = 0; i < view_model_->view_size(); ++i) { |
| View* view = view_model_->view_at(i); |
| bounds_animator_->AnimateViewTo(view, view_model_->ideal_bounds(i)); |
| // Now that the item animation starts, we have to make sure that the |
| // padding of the first gets properly transferred to the new first item. |
| if (i && view->border()) |
| view->SetBorder(views::NullBorder()); |
| } |
| overflow_button_->SetBoundsRect(overflow_bounds); |
| LayoutAppListAndBackButtonHighlight(); |
| UpdateVisibleShelfItemBoundsUnion(); |
| } |
| |
| views::View* ShelfView::CreateViewForItem(const ShelfItem& item) { |
| views::View* view = nullptr; |
| switch (item.type) { |
| case TYPE_PINNED_APP: |
| case TYPE_BROWSER_SHORTCUT: |
| case TYPE_APP: |
| case TYPE_DIALOG: { |
| ShelfAppButton* button = new ShelfAppButton(this, item.title); |
| button->SetImage(item.image); |
| button->ReflectItemStatus(item); |
| view = button; |
| break; |
| } |
| |
| case TYPE_APP_LIST: { |
| view = new AppListButton(this, shelf_); |
| break; |
| } |
| |
| case TYPE_BACK_BUTTON: { |
| view = new BackButton(this); |
| break; |
| } |
| |
| case TYPE_UNDEFINED: |
| return nullptr; |
| } |
| |
| if (item.type != TYPE_BACK_BUTTON) |
| view->set_context_menu_controller(this); |
| |
| ConfigureChildView(view); |
| return view; |
| } |
| |
| void ShelfView::FadeIn(views::View* view) { |
| view->SetVisible(true); |
| view->layer()->SetOpacity(0); |
| AnimateToIdealBounds(); |
| bounds_animator_->SetAnimationDelegate( |
| view, std::unique_ptr<gfx::AnimationDelegate>( |
| new FadeInAnimationDelegate(view))); |
| } |
| |
| void ShelfView::PrepareForDrag(Pointer pointer, const ui::LocatedEvent& event) { |
| DCHECK(!dragging()); |
| DCHECK(drag_view_); |
| drag_pointer_ = pointer; |
| start_drag_index_ = view_model_->GetIndexOfView(drag_view_); |
| drag_scroll_dir_ = 0; |
| |
| if (start_drag_index_ == -1) { |
| CancelDrag(-1); |
| return; |
| } |
| |
| // Move the view to the front so that it appears on top of other views. |
| ReorderChildView(drag_view_, -1); |
| bounds_animator_->StopAnimatingView(drag_view_); |
| |
| drag_view_->OnDragStarted(&event); |
| } |
| |
| void ShelfView::ContinueDrag(const ui::LocatedEvent& event) { |
| DCHECK(dragging()); |
| DCHECK(drag_view_); |
| DCHECK_NE(-1, view_model_->GetIndexOfView(drag_view_)); |
| |
| // If this is not a drag and drop host operation and not the app list item, |
| // check if the item got ripped off the shelf - if it did we are done. |
| if (drag_and_drop_shelf_id_.IsNull() && |
| RemovableByRipOff(view_model_->GetIndexOfView(drag_view_)) != |
| NOT_REMOVABLE && |
| HandleRipOffDrag(event)) { |
| drag_scroll_dir_ = 0; |
| scrolling_timer_.Stop(); |
| speed_up_drag_scrolling_.Stop(); |
| return; |
| } |
| |
| // Scroll the overflow bubble as the user drags near either end. There could |
| // be nowhere to scroll to in that direction (for that matter, the overflow |
| // bubble may not even span the screen), but for simplicity, ignore that |
| // possibility here and just let ScrollForUserDrag repeatedly do nothing. |
| if (is_overflow_mode()) { |
| const gfx::Rect bubble_bounds = |
| owner_overflow_bubble_->bubble_view()->GetBubbleBounds(); |
| gfx::Point screen_location(event.location()); |
| ConvertPointToScreen(drag_view_, &screen_location); |
| const int primary_coordinate = |
| shelf_->PrimaryAxisValue(screen_location.x(), screen_location.y()); |
| |
| int new_drag_scroll_dir = 0; |
| if (primary_coordinate < |
| shelf_->PrimaryAxisValue(bubble_bounds.x(), bubble_bounds.y()) + |
| kScrollTriggerBoundsInsetDips) { |
| new_drag_scroll_dir = -1; |
| } else if (primary_coordinate > |
| shelf_->PrimaryAxisValue(bubble_bounds.right(), |
| bubble_bounds.bottom()) - |
| kScrollTriggerBoundsInsetDips) { |
| new_drag_scroll_dir = 1; |
| } |
| |
| if (new_drag_scroll_dir != drag_scroll_dir_) { |
| drag_scroll_dir_ = new_drag_scroll_dir; |
| scrolling_timer_.Stop(); |
| speed_up_drag_scrolling_.Stop(); |
| if (new_drag_scroll_dir != 0) { |
| scrolling_timer_.Start( |
| FROM_HERE, kDragScrollInterval, |
| base::BindRepeating( |
| &ShelfView::ScrollForUserDrag, base::Unretained(this), |
| new_drag_scroll_dir * kDragSlowScrollDeltaDips)); |
| speed_up_drag_scrolling_.Start(FROM_HERE, kDragScrollSpeedIncreaseDelay, |
| this, &ShelfView::SpeedUpDragScrolling); |
| } |
| } |
| } |
| |
| gfx::Point drag_point(event.location()); |
| ConvertPointToTarget(drag_view_, this, &drag_point); |
| MoveDragViewTo(shelf_->PrimaryAxisValue(drag_point.x() - drag_origin_.x(), |
| drag_point.y() - drag_origin_.y())); |
| } |
| |
| void ShelfView::ScrollForUserDrag(int offset) { |
| DCHECK(dragging()); |
| DCHECK(drag_view_); |
| DCHECK(is_overflow_mode()); |
| |
| const gfx::Point position(drag_view_->origin()); |
| const int new_primary_coordinate = |
| shelf_->IsHorizontalAlignment() |
| ? position.x() + |
| owner_overflow_bubble_->bubble_view()->ScrollByXOffset(offset) |
| : position.y() + |
| owner_overflow_bubble_->bubble_view()->ScrollByYOffset(offset); |
| bounds_animator_->StopAnimatingView(drag_view_); |
| MoveDragViewTo(new_primary_coordinate); |
| } |
| |
| void ShelfView::SpeedUpDragScrolling() { |
| DCHECK(dragging()); |
| DCHECK(drag_view_); |
| DCHECK(is_overflow_mode()); |
| |
| scrolling_timer_.Start( |
| FROM_HERE, kDragScrollInterval, |
| base::BindRepeating(&ShelfView::ScrollForUserDrag, base::Unretained(this), |
| drag_scroll_dir_ * kDragFastScrollDeltaDips)); |
| } |
| |
| void ShelfView::MoveDragViewTo(int primary_axis_coordinate) { |
| const int current_index = view_model_->GetIndexOfView(drag_view_); |
| const std::pair<int, int> indices(GetDragRange(current_index)); |
| if (shelf_->IsHorizontalAlignment()) { |
| int x = GetMirroredXWithWidthInView(primary_axis_coordinate, |
| drag_view_->width()); |
| x = std::max(view_model_->ideal_bounds(indices.first).x(), x); |
| x = std::min(view_model_->ideal_bounds(indices.second).right() - |
| view_model_->ideal_bounds(current_index).width(), |
| x); |
| if (drag_view_->x() == x) |
| return; |
| drag_view_->SetX(x); |
| } else { |
| int y = std::max(view_model_->ideal_bounds(indices.first).y(), |
| primary_axis_coordinate); |
| y = std::min(view_model_->ideal_bounds(indices.second).bottom() - |
| view_model_->ideal_bounds(current_index).height(), |
| y); |
| if (drag_view_->y() == y) |
| return; |
| drag_view_->SetY(y); |
| } |
| |
| int target_index = views::ViewModelUtils::DetermineMoveIndex( |
| *view_model_, drag_view_, |
| shelf_->IsHorizontalAlignment() ? views::ViewModelUtils::HORIZONTAL |
| : views::ViewModelUtils::VERTICAL, |
| drag_view_->x(), drag_view_->y()); |
| target_index = |
| std::min(indices.second, std::max(target_index, indices.first)); |
| |
| if (target_index == current_index) |
| return; |
| |
| // Change the model, the ShelfItemMoved() callback will handle the |
| // |view_model_| update. |
| model_->Move(current_index, target_index); |
| bounds_animator_->StopAnimatingView(drag_view_); |
| } |
| |
| void ShelfView::EndDragOnOtherShelf(bool cancel) { |
| if (is_overflow_mode()) { |
| main_shelf_->EndDrag(cancel); |
| } else { |
| DCHECK(overflow_bubble_->IsShowing()); |
| overflow_bubble_->bubble_view()->shelf_view()->EndDrag(cancel); |
| } |
| } |
| |
| bool ShelfView::HandleRipOffDrag(const ui::LocatedEvent& event) { |
| int current_index = view_model_->GetIndexOfView(drag_view_); |
| DCHECK_NE(-1, current_index); |
| std::string dragged_app_id = model_->items()[current_index].id.app_id; |
| |
| gfx::Point screen_location = event.root_location(); |
| ::wm::ConvertPointToScreen(GetWidget()->GetNativeWindow()->GetRootWindow(), |
| &screen_location); |
| |
| // To avoid ugly forwards and backwards flipping we use different constants |
| // for ripping off / re-inserting the items. |
| if (dragged_off_shelf_) { |
| // If the shelf/overflow bubble bounds contains |screen_location| we insert |
| // the item back into the shelf. |
| if (GetBoundsForDragInsertInScreen().Contains(screen_location)) { |
| if (dragged_to_another_shelf_) { |
| // During the dragging an item from Shelf to Overflow, it can enter here |
| // directly because both are located very closely. |
| EndDragOnOtherShelf(true /* cancel */); |
| |
| // Stops the animation of |drag_view_| and sets its bounds explicitly |
| // because ContinueDrag() stops its animation. Without this, unexpected |
| // bounds will be set. |
| bounds_animator_->StopAnimatingView(drag_view_); |
| int drag_view_index = view_model_->GetIndexOfView(drag_view_); |
| drag_view_->SetBoundsRect(view_model_->ideal_bounds(drag_view_index)); |
| dragged_to_another_shelf_ = false; |
| } |
| // Destroy our proxy view item. |
| DestroyDragIconProxy(); |
| // Re-insert the item and return simply false since the caller will handle |
| // the move as in any normal case. |
| dragged_off_shelf_ = false; |
| drag_view_->layer()->SetOpacity(1.0f); |
| // The size of Overflow bubble should be updated immediately when an item |
| // is re-inserted. |
| if (is_overflow_mode()) |
| PreferredSizeChanged(); |
| return false; |
| } else if (is_overflow_mode() && |
| main_shelf_->GetBoundsForDragInsertInScreen().Contains( |
| screen_location)) { |
| // The item was dragged from the overflow shelf to the main shelf. |
| if (!dragged_to_another_shelf_) { |
| dragged_to_another_shelf_ = true; |
| drag_image_->SetOpacity(1.0f); |
| main_shelf_->StartDrag(dragged_app_id, screen_location); |
| } else { |
| main_shelf_->Drag(screen_location); |
| } |
| } else if (!is_overflow_mode() && overflow_bubble_ && |
| overflow_bubble_->IsShowing() && |
| overflow_bubble_->bubble_view() |
| ->shelf_view() |
| ->GetBoundsForDragInsertInScreen() |
| .Contains(screen_location)) { |
| // The item was dragged from the main shelf to the overflow shelf. |
| if (!dragged_to_another_shelf_) { |
| dragged_to_another_shelf_ = true; |
| drag_image_->SetOpacity(1.0f); |
| overflow_bubble_->bubble_view()->shelf_view()->StartDrag( |
| dragged_app_id, screen_location); |
| } else { |
| overflow_bubble_->bubble_view()->shelf_view()->Drag(screen_location); |
| } |
| } else if (dragged_to_another_shelf_) { |
| // Makes the |drag_image_| partially disappear again. |
| dragged_to_another_shelf_ = false; |
| drag_image_->SetOpacity(kDraggedImageOpacity); |
| |
| EndDragOnOtherShelf(true /* cancel */); |
| if (!is_overflow_mode()) { |
| // During dragging, the position of the dragged item is moved to the |
| // back. If the overflow bubble is showing, a copy of the dragged item |
| // will appear at the end of the overflow shelf. Decrement the last |
| // visible index of the overflow shelf to hide this copy. |
| overflow_bubble_->bubble_view()->shelf_view()->last_visible_index_--; |
| } |
| |
| bounds_animator_->StopAnimatingView(drag_view_); |
| int drag_view_index = view_model_->GetIndexOfView(drag_view_); |
| drag_view_->SetBoundsRect(view_model_->ideal_bounds(drag_view_index)); |
| } |
| // Move our proxy view item. |
| UpdateDragIconProxy(screen_location); |
| return true; |
| } |
| |
| // Mark the item as dragged off the shelf if the drag distance exceeds |
| // |kRipOffDistance|, or if it's dragged between the main and overflow shelf. |
| int delta = CalculateShelfDistance(screen_location); |
| bool dragged_off_shelf = delta > kRipOffDistance; |
| dragged_off_shelf |= |
| (is_overflow_mode() && |
| main_shelf_->GetBoundsForDragInsertInScreen().Contains(screen_location)); |
| dragged_off_shelf |= (!is_overflow_mode() && overflow_bubble_ && |
| overflow_bubble_->IsShowing() && |
| overflow_bubble_->bubble_view() |
| ->shelf_view() |
| ->GetBoundsForDragInsertInScreen() |
| .Contains(screen_location)); |
| |
| if (dragged_off_shelf) { |
| // Create a proxy view item which can be moved anywhere. |
| CreateDragIconProxy(event.root_location(), drag_view_->GetImage(), |
| drag_view_, gfx::Vector2d(0, 0), |
| kDragAndDropProxyScale); |
| drag_view_->layer()->SetOpacity(0.0f); |
| dragged_off_shelf_ = true; |
| if (RemovableByRipOff(current_index) == REMOVABLE) { |
| // Move the item to the back and hide it. ShelfItemMoved() callback will |
| // handle the |view_model_| update and call AnimateToIdealBounds(). |
| if (current_index != model_->item_count() - 1) { |
| model_->Move(current_index, model_->item_count() - 1); |
| StartFadeInLastVisibleItem(); |
| |
| // During dragging, the position of the dragged item is moved to the |
| // back. If the overflow bubble is showing, a copy of the dragged item |
| // will appear at the end of the overflow shelf. Decrement the last |
| // visible index of the overflow shelf to hide this copy. |
| if (overflow_bubble_ && overflow_bubble_->IsShowing()) |
| overflow_bubble_->bubble_view()->shelf_view()->last_visible_index_--; |
| } else if (is_overflow_mode()) { |
| // Overflow bubble should be shrunk when an item is ripped off. |
| PreferredSizeChanged(); |
| } |
| // Make the item partially disappear to show that it will get removed if |
| // dropped. |
| drag_image_->SetOpacity(kDraggedImageOpacity); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| void ShelfView::FinalizeRipOffDrag(bool cancel) { |
| if (!dragged_off_shelf_) |
| return; |
| // Make sure we do not come in here again. |
| dragged_off_shelf_ = false; |
| |
| // Coming here we should always have a |drag_view_|. |
| DCHECK(drag_view_); |
| int current_index = view_model_->GetIndexOfView(drag_view_); |
| // If the view isn't part of the model anymore (|current_index| == -1), a sync |
| // operation must have removed it. In that case we shouldn't change the model |
| // and only delete the proxy image. |
| if (current_index == -1) { |
| DestroyDragIconProxy(); |
| return; |
| } |
| |
| // Set to true when the animation should snap back to where it was before. |
| bool snap_back = false; |
| // Items which cannot be dragged off will be handled as a cancel. |
| if (!cancel) { |
| if (dragged_to_another_shelf_) { |
| dragged_to_another_shelf_ = false; |
| EndDragOnOtherShelf(false /* cancel */); |
| drag_view_->layer()->SetOpacity(1.0f); |
| } else if (RemovableByRipOff(current_index) != REMOVABLE) { |
| // Make sure we do not try to remove un-removable items like items which |
| // were not pinned or have to be always there. |
| cancel = true; |
| snap_back = true; |
| } else { |
| // Make sure the item stays invisible upon removal. |
| drag_view_->SetVisible(false); |
| model_->UnpinAppWithID(model_->items()[current_index].id.app_id); |
| } |
| } |
| if (cancel || snap_back) { |
| if (dragged_to_another_shelf_) { |
| dragged_to_another_shelf_ = false; |
| // Other shelf handles revert of dragged item. |
| EndDragOnOtherShelf(false /* true */); |
| drag_view_->layer()->SetOpacity(1.0f); |
| } else if (!cancelling_drag_model_changed_) { |
| // Only do something if the change did not come through a model change. |
| gfx::Rect drag_bounds = drag_image_->GetBoundsInScreen(); |
| gfx::Point relative_to = GetBoundsInScreen().origin(); |
| gfx::Rect target( |
| gfx::PointAtOffsetFromOrigin(drag_bounds.origin() - relative_to), |
| drag_bounds.size()); |
| drag_view_->SetBoundsRect(target); |
| // Hide the status from the active item since we snap it back now. Upon |
| // animation end the flag gets cleared if |snap_back_from_rip_off_view_| |
| // is set. |
| snap_back_from_rip_off_view_ = drag_view_; |
| drag_view_->AddState(ShelfAppButton::STATE_HIDDEN); |
| // When a canceling drag model is happening, the view model is diverged |
| // from the menu model and movements / animations should not be done. |
| model_->Move(current_index, start_drag_index_); |
| AnimateToIdealBounds(); |
| } |
| drag_view_->layer()->SetOpacity(1.0f); |
| } |
| DestroyDragIconProxy(); |
| } |
| |
| ShelfView::RemovableState ShelfView::RemovableByRipOff(int index) const { |
| DCHECK(index >= 0 && index < model_->item_count()); |
| ShelfItemType type = model_->items()[index].type; |
| if (type == TYPE_APP_LIST || type == TYPE_DIALOG || type == TYPE_BACK_BUTTON) |
| return NOT_REMOVABLE; |
| |
| if (model_->items()[index].pinned_by_policy) |
| return NOT_REMOVABLE; |
| |
| // Note: Only pinned app shortcuts can be removed! |
| const std::string& app_id = model_->items()[index].id.app_id; |
| return (type == TYPE_PINNED_APP && model_->IsAppPinned(app_id)) ? REMOVABLE |
| : DRAGGABLE; |
| } |
| |
| bool ShelfView::SameDragType(ShelfItemType typea, ShelfItemType typeb) const { |
| switch (typea) { |
| case TYPE_PINNED_APP: |
| case TYPE_BROWSER_SHORTCUT: |
| return (typeb == TYPE_PINNED_APP || typeb == TYPE_BROWSER_SHORTCUT); |
| case TYPE_APP_LIST: |
| case TYPE_APP: |
| case TYPE_BACK_BUTTON: |
| case TYPE_DIALOG: |
| return typeb == typea; |
| case TYPE_UNDEFINED: |
| NOTREACHED() << "ShelfItemType must be set."; |
| return false; |
| } |
| NOTREACHED(); |
| return false; |
| } |
| |
| std::pair<int, int> ShelfView::GetDragRange(int index) { |
| int min_index = -1; |
| int max_index = -1; |
| ShelfItemType type = model_->items()[index].type; |
| for (int i = 0; i < model_->item_count(); ++i) { |
| if (SameDragType(model_->items()[i].type, type)) { |
| if (min_index == -1) |
| min_index = i; |
| max_index = i; |
| } |
| } |
| DCHECK_EQ(1, model_->GetItemIndexForType(TYPE_APP_LIST)); |
| min_index = |
| std::max(min_index, is_overflow_mode() |
| ? first_visible_index_ |
| : model_->GetItemIndexForType(TYPE_APP_LIST) + 1); |
| max_index = std::min(max_index, last_visible_index_); |
| return std::pair<int, int>(min_index, max_index); |
| } |
| |
| void ShelfView::ConfigureChildView(views::View* view) { |
| view->SetPaintToLayer(); |
| view->layer()->SetFillsBoundsOpaquely(false); |
| } |
| |
| void ShelfView::ToggleOverflowBubble() { |
| if (IsShowingOverflowBubble()) { |
| overflow_bubble_->Hide(); |
| return; |
| } |
| |
| if (!overflow_bubble_) |
| overflow_bubble_.reset(new OverflowBubble(shelf_)); |
| |
| ShelfView* overflow_view = new ShelfView(model_, shelf_, shelf_widget_); |
| overflow_view->overflow_mode_ = true; |
| overflow_view->Init(); |
| overflow_view->set_owner_overflow_bubble(overflow_bubble_.get()); |
| overflow_view->OnShelfAlignmentChanged(); |
| overflow_view->main_shelf_ = this; |
| UpdateOverflowRange(overflow_view); |
| |
| overflow_bubble_->Show(overflow_button_, overflow_view); |
| |
| shelf_->UpdateVisibilityState(); |
| } |
| |
| void ShelfView::OnFadeOutAnimationEnded() { |
| AnimateToIdealBounds(); |
| StartFadeInLastVisibleItem(); |
| } |
| |
| void ShelfView::StartFadeInLastVisibleItem() { |
| // If overflow button is visible and there is a valid new last item, fading |
| // the new last item in after sliding animation is finished. |
| if (overflow_button_->visible() && last_visible_index_ >= 0) { |
| views::View* last_visible_view = view_model_->view_at(last_visible_index_); |
| last_visible_view->layer()->SetOpacity(0); |
| bounds_animator_->SetAnimationDelegate( |
| last_visible_view, |
| std::unique_ptr<gfx::AnimationDelegate>( |
| new StartFadeAnimationDelegate(this, last_visible_view))); |
| } |
| } |
| |
| void ShelfView::UpdateOverflowRange(ShelfView* overflow_view) const { |
| const int first_overflow_index = last_visible_index_ + 1; |
| DCHECK_LE(first_overflow_index, model_->item_count() - 1); |
| DCHECK_LT(model_->item_count() - 1, view_model_->view_size()); |
| |
| overflow_view->first_visible_index_ = first_overflow_index; |
| overflow_view->last_visible_index_ = model_->item_count() - 1; |
| } |
| |
| gfx::Rect ShelfView::GetMenuAnchorRect(const views::View& source, |
| const gfx::Point& location, |
| bool context_menu) const { |
| // Application menus for items are anchored on the icon bounds. |
| if (ShelfItemForView(&source) || !context_menu) |
| return source.GetBoundsInScreen(); |
| |
| const gfx::Rect shelf_bounds_in_screen = |
| is_overflow_mode() |
| ? owner_overflow_bubble_->bubble_view()->GetBubbleBounds() |
| : GetBoundsInScreen(); |
| gfx::Point origin; |
| switch (shelf_->alignment()) { |
| case SHELF_ALIGNMENT_BOTTOM: |
| case SHELF_ALIGNMENT_BOTTOM_LOCKED: |
| origin = gfx::Point(location.x(), shelf_bounds_in_screen.y()); |
| break; |
| case SHELF_ALIGNMENT_LEFT: |
| origin = gfx::Point(shelf_bounds_in_screen.right(), location.y()); |
| break; |
| case SHELF_ALIGNMENT_RIGHT: |
| origin = gfx::Point(shelf_bounds_in_screen.x(), location.y()); |
| break; |
| } |
| return gfx::Rect(origin, gfx::Size()); |
| } |
| |
| gfx::Rect ShelfView::GetBoundsForDragInsertInScreen() { |
| gfx::Size preferred_size; |
| if (is_overflow_mode()) { |
| DCHECK(owner_overflow_bubble_); |
| gfx::Rect bubble_bounds = |
| owner_overflow_bubble_->bubble_view()->GetBubbleBounds(); |
| preferred_size = bubble_bounds.size(); |
| } else { |
| const int last_button_index = view_model_->view_size() - 1; |
| gfx::Rect last_button_bounds = |
| view_model_->view_at(last_button_index)->bounds(); |
| if (overflow_button_->visible()) { |
| // When overflow button is visible, last_button_bounds should be |
| // overflow button's bounds. |
| last_button_bounds = overflow_button_->bounds(); |
| } |
| |
| if (shelf_->IsHorizontalAlignment()) { |
| preferred_size = |
| gfx::Size(last_button_bounds.right(), ShelfConstants::shelf_size()); |
| } else { |
| preferred_size = |
| gfx::Size(ShelfConstants::shelf_size(), last_button_bounds.bottom()); |
| } |
| } |
| gfx::Point origin(GetMirroredXWithWidthInView(0, preferred_size.width()), 0); |
| |
| // In overflow mode, we should use OverflowBubbleView as a source for |
| // converting |origin| to screen coordinates. When a scroll operation is |
| // occurred in OverflowBubble, the bounds of ShelfView in OverflowBubble can |
| // be changed. |
| if (is_overflow_mode()) |
| ConvertPointToScreen(owner_overflow_bubble_->bubble_view(), &origin); |
| else |
| ConvertPointToScreen(this, &origin); |
| |
| return gfx::Rect(origin, preferred_size); |
| } |
| |
| int ShelfView::CancelDrag(int modified_index) { |
| drag_scroll_dir_ = 0; |
| scrolling_timer_.Stop(); |
| speed_up_drag_scrolling_.Stop(); |
| |
| FinalizeRipOffDrag(true); |
| if (!drag_view_) |
| return modified_index; |
| bool was_dragging = dragging(); |
| int drag_view_index = view_model_->GetIndexOfView(drag_view_); |
| drag_pointer_ = NONE; |
| drag_view_ = nullptr; |
| if (drag_view_index == modified_index) { |
| // The view that was being dragged is being modified. Don't do anything. |
| return modified_index; |
| } |
| if (!was_dragging) |
| return modified_index; |
| |
| // Restore previous position, tracking the position of the modified view. |
| bool at_end = modified_index == view_model_->view_size(); |
| views::View* modified_view = (modified_index >= 0 && !at_end) |
| ? view_model_->view_at(modified_index) |
| : nullptr; |
| model_->Move(drag_view_index, start_drag_index_); |
| |
| // If the modified view will be at the end of the list, return the new end of |
| // the list. |
| if (at_end) |
| return view_model_->view_size(); |
| return modified_view ? view_model_->GetIndexOfView(modified_view) : -1; |
| } |
| |
| void ShelfView::OnGestureEvent(ui::GestureEvent* event) { |
| // Convert the event location from current view to screen, since swiping up on |
| // the shelf can open the fullscreen app list. Updating the bounds of the app |
| // list during dragging is based on screen coordinate space. |
| gfx::Point location_in_screen(event->location()); |
| View::ConvertPointToScreen(this, &location_in_screen); |
| event->set_location(location_in_screen); |
| if (shelf_->ProcessGestureEvent(*event)) |
| event->StopPropagation(); |
| else if (is_overflow_mode()) { |
| // If the event hasn't been processed yet and the overflow shelf is showing, |
| // give the bubble a chance to process the event. |
| if (main_shelf_->overflow_bubble()->bubble_view()->ProcessGestureEvent( |
| *event)) { |
| event->StopPropagation(); |
| return; |
| } |
| } |
| } |
| |
| bool ShelfView::OnMouseWheel(const ui::MouseWheelEvent& event) { |
| shelf_->ProcessMouseWheelEvent(event); |
| return true; |
| } |
| |
| void ShelfView::ShelfItemAdded(int model_index) { |
| { |
| base::AutoReset<bool> cancelling_drag(&cancelling_drag_model_changed_, |
| true); |
| model_index = CancelDrag(model_index); |
| } |
| const ShelfItem& item(model_->items()[model_index]); |
| views::View* view = CreateViewForItem(item); |
| AddChildView(view); |
| // Hide the view, it'll be made visible when the animation is done. Using |
| // opacity 0 here to avoid messing with CalculateIdealBounds which touches |
| // the view's visibility. |
| view->layer()->SetOpacity(0); |
| view_model_->Add(view, model_index); |
| |
| // Give the button its ideal bounds. That way if we end up animating the |
| // button before this animation completes it doesn't appear at some random |
| // spot (because it was in the middle of animating from 0,0 0x0 to its |
| // target). |
| gfx::Rect overflow_bounds; |
| CalculateIdealBounds(&overflow_bounds); |
| view->SetBoundsRect(view_model_->ideal_bounds(model_index)); |
| |
| // The first animation moves all the views to their target position. |view| |
| // is hidden, so it visually appears as though we are providing space for |
| // it. When done we'll fade the view in. |
| AnimateToIdealBounds(); |
| if (model_index <= last_visible_index_) { |
| bounds_animator_->SetAnimationDelegate( |
| view, std::unique_ptr<gfx::AnimationDelegate>( |
| new StartFadeAnimationDelegate(this, view))); |
| } else { |
| // Undo the hiding if animation does not run. |
| view->layer()->SetOpacity(1.0f); |
| } |
| } |
| |
| void ShelfView::ShelfItemRemoved(int model_index, const ShelfItem& old_item) { |
| if (old_item.id == context_menu_id_ && shelf_menu_model_adapter_) |
| shelf_menu_model_adapter_->Cancel(); |
| |
| views::View* view = view_model_->view_at(model_index); |
| view_model_->Remove(model_index); |
| |
| { |
| base::AutoReset<bool> cancelling_drag(&cancelling_drag_model_changed_, |
| true); |
| CancelDrag(-1); |
| } |
| |
| // When the overflow bubble is visible, the overflow range needs to be set |
| // before CalculateIdealBounds() gets called. Otherwise CalculateIdealBounds() |
| // could trigger a ShelfItemChanged() by hiding the overflow bubble and |
| // since the overflow bubble is not yet synced with the ShelfModel this |
| // could cause a crash. |
| if (overflow_bubble_ && overflow_bubble_->IsShowing()) { |
| UpdateOverflowRange(overflow_bubble_->bubble_view()->shelf_view()); |
| } |
| |
| if (view->visible()) { |
| // The first animation fades out the view. When done we'll animate the rest |
| // of the views to their target location. |
| bounds_animator_->AnimateViewTo(view, view->bounds()); |
| bounds_animator_->SetAnimationDelegate( |
| view, std::unique_ptr<gfx::AnimationDelegate>( |
| new FadeOutAnimationDelegate(this, view))); |
| } else { |
| // We don't need to show a fade out animation for invisible |view|. When an |
| // item is ripped out from the shelf, its |view| is already invisible. |
| AnimateToIdealBounds(); |
| } |
| |
| if (view == tooltip_.GetCurrentAnchorView()) |
| tooltip_.Close(); |
| } |
| |
| void ShelfView::ShelfItemChanged(int model_index, const ShelfItem& old_item) { |
| const ShelfItem& item(model_->items()[model_index]); |
| |
| // Bail if the view and shelf sizes do not match. ShelfItemChanged may be |
| // called here before ShelfItemAdded, due to ChromeLauncherController's |
| // item initialization, which calls SetItem during ShelfItemAdded. |
| if (static_cast<int>(model_->items().size()) != view_model_->view_size()) |
| return; |
| |
| if (old_item.type != item.type) { |
| // Type changed, swap the views. |
| model_index = CancelDrag(model_index); |
| std::unique_ptr<views::View> old_view(view_model_->view_at(model_index)); |
| bounds_animator_->StopAnimatingView(old_view.get()); |
| // Removing and re-inserting a view in our view model will strip the ideal |
| // bounds from the item. To avoid recalculation of everything the bounds |
| // get remembered and restored after the insertion to the previous value. |
| gfx::Rect old_ideal_bounds = view_model_->ideal_bounds(model_index); |
| view_model_->Remove(model_index); |
| views::View* new_view = CreateViewForItem(item); |
| AddChildView(new_view); |
| view_model_->Add(new_view, model_index); |
| view_model_->set_ideal_bounds(model_index, old_ideal_bounds); |
| |
| new_view->SetBoundsRect(old_view->bounds()); |
| if (overflow_button_ && overflow_button_->visible()) |
| AnimateToIdealBounds(); |
| else |
| bounds_animator_->AnimateViewTo(new_view, old_ideal_bounds); |
| |
| // If an item is being pinned or unpinned, show the new status of the |
| // shelf immediately so that the separator gets drawn as needed. |
| if (old_item.type == TYPE_PINNED_APP || item.type == TYPE_PINNED_APP) |
| AnimateToIdealBounds(); |
| return; |
| } |
| |
| views::View* view = view_model_->view_at(model_index); |
| switch (item.type) { |
| case TYPE_PINNED_APP: |
| case TYPE_BROWSER_SHORTCUT: |
| case TYPE_APP: |
| case TYPE_DIALOG: { |
| CHECK_EQ(ShelfAppButton::kViewClassName, view->GetClassName()); |
| ShelfAppButton* button = static_cast<ShelfAppButton*>(view); |
| button->ReflectItemStatus(item); |
| button->SetTitle(item.title); |
| button->SetImage(item.image); |
| button->SchedulePaint(); |
| break; |
| } |
| |
| default: |
| break; |
| } |
| } |
| |
| void ShelfView::ShelfItemMoved(int start_index, int target_index) { |
| view_model_->Move(start_index, target_index); |
| // When cancelling a drag due to a shelf item being added, the currently |
| // dragged item is moved back to its initial position. AnimateToIdealBounds |
| // will be called again when the new item is added to the |view_model_| but |
| // at this time the |view_model_| is inconsistent with the |model_|. |
| if (!cancelling_drag_model_changed_) |
| AnimateToIdealBounds(); |
| } |
| |
| void ShelfView::ShelfItemDelegateChanged(const ShelfID& id, |
| ShelfItemDelegate* old_delegate, |
| ShelfItemDelegate* delegate) {} |
| |
| void ShelfView::ShelfItemStatusChanged(const ShelfID& id) { |
| int index = model_->ItemIndexByID(id); |
| if (index < 0) |
| return; |
| |
| const ShelfItem item = model_->items()[index]; |
| views::View* view = view_model_->view_at(index); |
| CHECK_EQ(ShelfAppButton::kViewClassName, view->GetClassName()); |
| // TODO(manucornet): Add a helper to get the button. |
| ShelfAppButton* button = static_cast<ShelfAppButton*>(view); |
| button->ReflectItemStatus(item); |
| button->SchedulePaint(); |
| } |
| |
| void ShelfView::AfterItemSelected( |
| const ShelfItem& item, |
| views::Button* sender, |
| std::unique_ptr<ui::Event> event, |
| views::InkDrop* ink_drop, |
| ShelfAction action, |
| base::Optional<std::vector<mojom::MenuItemPtr>> menu_items) { |
| item_awaiting_response_ = ShelfID(); |
| shelf_button_pressed_metric_tracker_.ButtonPressed(*event, sender, action); |
| |
| // The app list handles its own ink drop effect state changes. |
| if (action == SHELF_ACTION_APP_LIST_DISMISSED) { |
| ink_drop->SnapToActivated(); |
| ink_drop->AnimateToState(views::InkDropState::HIDDEN); |
| } else if (action != SHELF_ACTION_APP_LIST_SHOWN) { |
| if (action != SHELF_ACTION_NEW_WINDOW_CREATED && menu_items && |
| menu_items->size() > 1) { |
| // Show the app menu with 2 or more items, if no window was created. |
| ink_drop->AnimateToState(views::InkDropState::ACTIVATED); |
| context_menu_id_ = item.id; |
| ShowMenu(std::make_unique<ShelfApplicationMenuModel>( |
| item.title, std::move(*menu_items), |
| model_->GetShelfItemDelegate(item.id)), |
| sender, gfx::Point(), /*context_menu=*/false, |
| ui::GetMenuSourceTypeForEvent(*event)); |
| shelf_->UpdateVisibilityState(); |
| } else { |
| ink_drop->AnimateToState(views::InkDropState::ACTION_TRIGGERED); |
| } |
| } |
| scoped_root_window_for_new_windows_.reset(); |
| } |
| |
| void ShelfView::AfterGetContextMenuItems( |
| const ShelfID& shelf_id, |
| const gfx::Point& point, |
| views::View* source, |
| ui::MenuSourceType source_type, |
| std::vector<mojom::MenuItemPtr> menu_items) { |
| context_menu_id_ = shelf_id; |
| const int64_t display_id = GetDisplayIdForView(this); |
| std::unique_ptr<ShelfContextMenuModel> menu_model = |
| std::make_unique<ShelfContextMenuModel>( |
| std::move(menu_items), model_->GetShelfItemDelegate(shelf_id), |
| display_id); |
| ShowMenu(std::move(menu_model), source, point, /*context_menu=*/true, |
| source_type); |
| } |
| |
| void ShelfView::ShowContextMenuForView(views::View* source, |
| const gfx::Point& point, |
| ui::MenuSourceType source_type) { |
| // Prevent concurrent requests that may show application or context menus. |
| // If a second request is sent before the first one can respond, the Chrome |
| // side ShelfItemDelegate may become unresponsive: https://crbug.com/881886 |
| const ShelfItem* item = ShelfItemForView(source); |
| if (!item_awaiting_response_.IsNull()) { |
| if (item && item->id != item_awaiting_response_) { |
| static_cast<views::Button*>(source)->AnimateInkDrop( |
| views::InkDropState::DEACTIVATED, nullptr); |
| } |
| return; |
| } |
| last_pressed_index_ = -1; |
| const int64_t display_id = GetDisplayIdForView(this); |
| if (!item || !model_->GetShelfItemDelegate(item->id)) { |
| context_menu_id_ = ShelfID(); |
| std::unique_ptr<ShelfContextMenuModel> menu_model = |
| std::make_unique<ShelfContextMenuModel>( |
| std::vector<mojom::MenuItemPtr>(), nullptr, display_id); |
| ShowMenu(std::move(menu_model), source, point, true, source_type); |
| return; |
| } |
| |
| item_awaiting_response_ = item->id; |
| // Get any custom entries; show the context menu in AfterGetContextMenuItems. |
| model_->GetShelfItemDelegate(item->id)->GetContextMenuItems( |
| display_id, base::Bind(&ShelfView::AfterGetContextMenuItems, |
| weak_factory_.GetWeakPtr(), item->id, point, |
| source, source_type)); |
| } |
| |
| void ShelfView::ShowMenu(std::unique_ptr<ui::SimpleMenuModel> menu_model, |
| views::View* source, |
| const gfx::Point& click_point, |
| bool context_menu, |
| ui::MenuSourceType source_type) { |
| // Delayed callbacks to show context and application menus may conflict; hide |
| // the old menu before showing a new menu in that case. |
| if (IsShowingMenu()) |
| shelf_menu_model_adapter_->Cancel(); |
| |
| item_awaiting_response_ = ShelfID(); |
| if (menu_model->GetItemCount() == 0) |
| return; |
| menu_owner_ = source; |
| |
| closing_event_time_ = base::TimeTicks(); |
| |
| // NOTE: If you convert to HAS_MNEMONICS be sure to update menu building code. |
| int run_types = views::MenuRunner::USE_TOUCHABLE_LAYOUT; |
| if (context_menu) { |
| run_types |= |
| views::MenuRunner::CONTEXT_MENU | views::MenuRunner::FIXED_ANCHOR; |
| } |
| |
| const ShelfItem* item = ShelfItemForView(source); |
| // Only selected shelf items with context menu opened can be dragged. |
| if (context_menu && item && ShelfButtonIsInDrag(item->type, source) && |
| source_type == ui::MenuSourceType::MENU_SOURCE_TOUCH) { |
| run_types |= views::MenuRunner::SEND_GESTURE_EVENTS_TO_OWNER; |
| } |
| |
| shelf_menu_model_adapter_ = std::make_unique<ShelfMenuModelAdapter>( |
| item ? item->id.app_id : std::string(), std::move(menu_model), source, |
| source_type, |
| base::BindOnce(&ShelfView::OnMenuClosed, base::Unretained(this), source)); |
| shelf_menu_model_adapter_->Run( |
| GetMenuAnchorRect(*source, click_point, context_menu), |
| shelf_->IsHorizontalAlignment() |
| ? views::MENU_ANCHOR_BUBBLE_TOUCHABLE_ABOVE |
| : views::MENU_ANCHOR_BUBBLE_TOUCHABLE_LEFT, |
| run_types); |
| } |
| |
| void ShelfView::OnMenuClosed(views::View* source) { |
| menu_owner_ = nullptr; |
| context_menu_id_ = ShelfID(); |
| |
| closing_event_time_ = shelf_menu_model_adapter_->GetClosingEventTime(); |
| |
| const ShelfItem* item = ShelfItemForView(source); |
| if (item && (item->type != TYPE_APP_LIST)) |
| static_cast<ShelfAppButton*>(source)->OnMenuClosed(); |
| |
| shelf_menu_model_adapter_.reset(); |
| |
| const bool is_in_drag = item && ShelfButtonIsInDrag(item->type, source); |
| // Update the shelf visibility since auto-hide or alignment might have |
| // changes, but don't update if shelf item is being dragged. Since shelf |
| // should be kept as visible during shelf item drag even menu is closed. |
| if (!is_in_drag) |
| shelf_->UpdateVisibilityState(); |
| } |
| |
| void ShelfView::OnBoundsAnimatorProgressed(views::BoundsAnimator* animator) { |
| shelf_->NotifyShelfIconPositionsChanged(); |
| PreferredSizeChanged(); |
| |
| if (shelf_->is_tablet_mode_animation_running()) { |
| float opacity = 0.f; |
| const gfx::SlideAnimation* animation = |
| bounds_animator_->GetAnimationForView(GetBackButton()); |
| if (animation) |
| opacity = static_cast<float>(animation->GetCurrentValue()); |
| if (!IsTabletModeEnabled()) |
| opacity = 1.f - opacity; |
| |
| GetBackButton()->layer()->SetOpacity(opacity); |
| GetBackButton()->SetFocusBehavior(FocusBehavior::ALWAYS); |
| } |
| } |
| |
| void ShelfView::OnBoundsAnimatorDone(views::BoundsAnimator* animator) { |
| shelf_->set_is_tablet_mode_animation_running(false); |
| |
| if (snap_back_from_rip_off_view_ && animator == bounds_animator_.get()) { |
| if (!animator->IsAnimating(snap_back_from_rip_off_view_)) { |
| // Coming here the animation of the ShelfAppButton is finished and the |
| // previously hidden status can be shown again. Since the button itself |
| // might have gone away or changed locations we check that the button |
| // is still in the shelf and show its status again. |
| for (int index = 0; index < view_model_->view_size(); index++) { |
| views::View* view = view_model_->view_at(index); |
| if (view == snap_back_from_rip_off_view_) { |
| CHECK_EQ(ShelfAppButton::kViewClassName, view->GetClassName()); |
| ShelfAppButton* button = static_cast<ShelfAppButton*>(view); |
| button->ClearState(ShelfAppButton::STATE_HIDDEN); |
| break; |
| } |
| } |
| snap_back_from_rip_off_view_ = nullptr; |
| } |
| } |
| |
| UpdateBackButton(); |
| } |
| |
| bool ShelfView::IsRepostEvent(const ui::Event& event) { |
| if (closing_event_time_.is_null()) |
| return false; |
| |
| // If the current (press down) event is a repost event, the time stamp of |
| // these two events should be the same. |
| return closing_event_time_ == event.time_stamp(); |
| } |
| |
| const ShelfItem* ShelfView::ShelfItemForView(const views::View* view) const { |
| const int view_index = view_model_->GetIndexOfView(view); |
| return (view_index < 0) ? nullptr : &(model_->items()[view_index]); |
| } |
| |
| int ShelfView::CalculateShelfDistance(const gfx::Point& coordinate) const { |
| const gfx::Rect bounds = GetBoundsInScreen(); |
| int distance = shelf_->SelectValueForShelfAlignment( |
| bounds.y() - coordinate.y(), coordinate.x() - bounds.right(), |
| bounds.x() - coordinate.x()); |
| return distance > 0 ? distance : 0; |
| } |
| |
| bool ShelfView::CanPrepareForDrag(Pointer pointer, |
| const ui::LocatedEvent& event) { |
| // Bail if dragging has already begun, or if no item has been pressed. |
| if (dragging() || !drag_view_) |
| return false; |
| |
| // Dragging only begins once the pointer has travelled a minimum distance. |
| if ((std::abs(event.x() - drag_origin_.x()) < kMinimumDragDistance) && |
| (std::abs(event.y() - drag_origin_.y()) < kMinimumDragDistance)) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void ShelfView::UpdateBackButton() { |
| const bool virtual_keyboard_visible = |
| Shell::Get()->system_tray_model()->virtual_keyboard()->visible(); |
| gfx::Transform rotation; |
| // Rotate the back button when virtual keyboard is visible. |
| if (virtual_keyboard_visible) { |
| rotation.Rotate(270.0); |
| rotation.Translate(-GetBackButton()->height(), 0); |
| } |
| GetBackButton()->layer()->SetOpacity(IsTabletModeEnabled() ? 1.f : 0.f); |
| GetBackButton()->layer()->SetTransform(rotation); |
| GetBackButton()->SetFocusBehavior( |
| IsTabletModeEnabled() ? FocusBehavior::ALWAYS : FocusBehavior::NEVER); |
| } |
| |
| void ShelfView::SetDragImageBlur(const gfx::Size& size, int blur_radius) { |
| drag_image_->SetPaintToLayer(); |
| drag_image_->layer()->SetFillsBoundsOpaquely(false); |
| drag_image_mask_ = views::Painter::CreatePaintedLayer( |
| views::Painter::CreateSolidRoundRectPainter(SK_ColorBLACK, |
| size.width() / 2.0f)); |
| drag_image_mask_->layer()->SetBounds(gfx::Rect(size)); |
| drag_image_->layer()->SetMaskLayer(drag_image_mask_->layer()); |
| drag_image_->layer()->SetBackgroundBlur(blur_radius); |
| } |
| |
| } // namespace ash |