| // Copyright 2013 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 "ui/app_list/views/app_list_folder_view.h" |
| |
| #include <algorithm> |
| |
| #include "grit/ui_strings.h" |
| #include "ui/accessibility/ax_view_state.h" |
| #include "ui/app_list/app_list_constants.h" |
| #include "ui/app_list/app_list_folder_item.h" |
| #include "ui/app_list/app_list_model.h" |
| #include "ui/app_list/views/app_list_item_view.h" |
| #include "ui/app_list/views/app_list_main_view.h" |
| #include "ui/app_list/views/apps_container_view.h" |
| #include "ui/app_list/views/apps_grid_view.h" |
| #include "ui/app_list/views/contents_view.h" |
| #include "ui/app_list/views/folder_background_view.h" |
| #include "ui/app_list/views/folder_header_view.h" |
| #include "ui/app_list/views/search_box_view.h" |
| #include "ui/compositor/scoped_layer_animation_settings.h" |
| #include "ui/events/event.h" |
| #include "ui/gfx/rect_conversions.h" |
| #include "ui/views/controls/textfield/textfield.h" |
| #include "ui/views/view_model.h" |
| #include "ui/views/view_model_utils.h" |
| |
| namespace app_list { |
| |
| namespace { |
| |
| // Indexes of interesting views in ViewModel of AppListFolderView. |
| const int kIndexFolderHeader = 0; |
| const int kIndexChildItems = 1; |
| |
| // Threshold for the distance from the center of the item to the circle of the |
| // folder container ink bubble, beyond which, the item is considered dragged |
| // out of the folder boundary. |
| const int kOutOfFolderContainerBubbleDelta = 30; |
| |
| } // namespace |
| |
| AppListFolderView::AppListFolderView(AppsContainerView* container_view, |
| AppListModel* model, |
| AppListMainView* app_list_main_view) |
| : container_view_(container_view), |
| app_list_main_view_(app_list_main_view), |
| folder_header_view_(new FolderHeaderView(this)), |
| view_model_(new views::ViewModel), |
| model_(model), |
| folder_item_(NULL), |
| hide_for_reparent_(false) { |
| AddChildView(folder_header_view_); |
| view_model_->Add(folder_header_view_, kIndexFolderHeader); |
| |
| items_grid_view_ = new AppsGridView(app_list_main_view_); |
| items_grid_view_->set_folder_delegate(this); |
| items_grid_view_->SetLayout( |
| kPreferredIconDimension, |
| container_view->apps_grid_view()->cols(), |
| container_view->apps_grid_view()->rows_per_page()); |
| items_grid_view_->SetModel(model); |
| AddChildView(items_grid_view_); |
| view_model_->Add(items_grid_view_, kIndexChildItems); |
| |
| SetPaintToLayer(true); |
| SetFillsBoundsOpaquely(false); |
| |
| model_->AddObserver(this); |
| } |
| |
| AppListFolderView::~AppListFolderView() { |
| model_->RemoveObserver(this); |
| } |
| |
| void AppListFolderView::SetAppListFolderItem(AppListFolderItem* folder) { |
| accessible_name_ = ui::ResourceBundle::GetSharedInstance().GetLocalizedString( |
| IDS_APP_LIST_FOLDER_OPEN_FOLDER_ACCESSIBILE_NAME); |
| NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true); |
| |
| folder_item_ = folder; |
| items_grid_view_->SetItemList(folder_item_->item_list()); |
| folder_header_view_->SetFolderItem(folder_item_); |
| } |
| |
| void AppListFolderView::ScheduleShowHideAnimation(bool show, |
| bool hide_for_reparent) { |
| hide_for_reparent_ = hide_for_reparent; |
| |
| // Stop any previous animation. |
| layer()->GetAnimator()->StopAnimating(); |
| |
| // Hide the top items temporarily if showing the view for opening the folder. |
| if (show) |
| items_grid_view_->SetTopItemViewsVisible(false); |
| |
| // Set initial state. |
| layer()->SetOpacity(show ? 0.0f : 1.0f); |
| SetVisible(true); |
| UpdateFolderNameVisibility(true); |
| |
| ui::ScopedLayerAnimationSettings animation(layer()->GetAnimator()); |
| animation.SetTweenType( |
| show ? kFolderFadeInTweenType : kFolderFadeOutTweenType); |
| animation.AddObserver(this); |
| animation.SetTransitionDuration(base::TimeDelta::FromMilliseconds( |
| show ? kFolderTransitionInDurationMs : kFolderTransitionOutDurationMs)); |
| |
| layer()->SetOpacity(show ? 1.0f : 0.0f); |
| } |
| |
| gfx::Size AppListFolderView::GetPreferredSize() const { |
| const gfx::Size header_size = folder_header_view_->GetPreferredSize(); |
| const gfx::Size grid_size = items_grid_view_->GetPreferredSize(); |
| int width = std::max(header_size.width(), grid_size.width()); |
| int height = header_size.height() + grid_size.height(); |
| return gfx::Size(width, height); |
| } |
| |
| void AppListFolderView::Layout() { |
| CalculateIdealBounds(); |
| views::ViewModelUtils::SetViewBoundsToIdealBounds(*view_model_); |
| } |
| |
| bool AppListFolderView::OnKeyPressed(const ui::KeyEvent& event) { |
| return items_grid_view_->OnKeyPressed(event); |
| } |
| |
| void AppListFolderView::OnAppListItemWillBeDeleted(AppListItem* item) { |
| if (item == folder_item_) { |
| items_grid_view_->OnFolderItemRemoved(); |
| folder_header_view_->OnFolderItemRemoved(); |
| folder_item_ = NULL; |
| |
| // Do not change state if it is hidden. |
| if (hide_for_reparent_ || layer()->opacity() == 0.0f) |
| return; |
| |
| // If the folder item associated with this view is removed from the model, |
| // (e.g. the last item in the folder was deleted), reset the view and signal |
| // the container view to show the app list instead. |
| // Pass NULL to ShowApps() to avoid triggering animation from the deleted |
| // folder. |
| container_view_->ShowApps(NULL); |
| } |
| } |
| |
| void AppListFolderView::OnImplicitAnimationsCompleted() { |
| // Show the top items when the opening folder animation is done. |
| if (layer()->opacity() == 1.0f) |
| items_grid_view_->SetTopItemViewsVisible(true); |
| |
| // If the view is hidden for reparenting a folder item, it has to be visible, |
| // so that drag_view_ can keep receiving mouse events. |
| if (layer()->opacity() == 0.0f && !hide_for_reparent_) |
| SetVisible(false); |
| |
| // Set the view bounds to a small rect, so that it won't overlap the root |
| // level apps grid view during folder item reprenting transitional period. |
| if (hide_for_reparent_) |
| SetBoundsRect(gfx::Rect(bounds().x(), bounds().y(), 1, 1)); |
| } |
| |
| void AppListFolderView::CalculateIdealBounds() { |
| gfx::Rect rect(GetContentsBounds()); |
| if (rect.IsEmpty()) |
| return; |
| |
| gfx::Rect header_frame(rect); |
| gfx::Size size = folder_header_view_->GetPreferredSize(); |
| header_frame.set_height(size.height()); |
| view_model_->set_ideal_bounds(kIndexFolderHeader, header_frame); |
| |
| gfx::Rect grid_frame(rect); |
| grid_frame.Subtract(header_frame); |
| view_model_->set_ideal_bounds(kIndexChildItems, grid_frame); |
| } |
| |
| void AppListFolderView::StartSetupDragInRootLevelAppsGridView( |
| AppListItemView* original_drag_view, |
| const gfx::Point& drag_point_in_root_grid) { |
| // Converts the original_drag_view's bounds to the coordinate system of |
| // root level grid view. |
| gfx::RectF rect_f(original_drag_view->bounds()); |
| views::View::ConvertRectToTarget(items_grid_view_, |
| container_view_->apps_grid_view(), |
| &rect_f); |
| gfx::Rect rect_in_root_grid_view = gfx::ToEnclosingRect(rect_f); |
| |
| container_view_->apps_grid_view()-> |
| InitiateDragFromReparentItemInRootLevelGridView( |
| original_drag_view, rect_in_root_grid_view, drag_point_in_root_grid); |
| } |
| |
| gfx::Rect AppListFolderView::GetItemIconBoundsAt(int index) { |
| AppListItemView* item_view = items_grid_view_->GetItemViewAt(index); |
| // Icon bounds relative to AppListItemView. |
| const gfx::Rect icon_bounds = item_view->GetIconBounds(); |
| gfx::Rect to_apps_grid_view = item_view->ConvertRectToParent(icon_bounds); |
| gfx::Rect to_folder = |
| items_grid_view_->ConvertRectToParent(to_apps_grid_view); |
| |
| // Get the icon image's bound. |
| to_folder.ClampToCenteredSize( |
| gfx::Size(kPreferredIconDimension, kPreferredIconDimension)); |
| |
| return to_folder; |
| } |
| |
| void AppListFolderView::UpdateFolderViewBackground(bool show_bubble) { |
| if (hide_for_reparent_) |
| return; |
| |
| // Before showing the folder container inking bubble, hide the folder name. |
| if (show_bubble) |
| UpdateFolderNameVisibility(false); |
| |
| container_view_->folder_background_view()->UpdateFolderContainerBubble( |
| show_bubble ? FolderBackgroundView::SHOW_BUBBLE : |
| FolderBackgroundView::HIDE_BUBBLE); |
| } |
| |
| void AppListFolderView::UpdateFolderNameVisibility(bool visible) { |
| folder_header_view_->UpdateFolderNameVisibility(visible); |
| } |
| |
| bool AppListFolderView::IsPointOutsideOfFolderBoundary( |
| const gfx::Point& point) { |
| if (!GetLocalBounds().Contains(point)) |
| return true; |
| |
| gfx::Point center = GetLocalBounds().CenterPoint(); |
| float delta = (point - center).Length(); |
| return delta > container_view_->folder_background_view()-> |
| GetFolderContainerBubbleRadius() + kOutOfFolderContainerBubbleDelta; |
| } |
| |
| // When user drags a folder item out of the folder boundary ink bubble, the |
| // folder view UI will be hidden, and switch back to top level AppsGridView. |
| // The dragged item will seamlessly move on the top level AppsGridView. |
| // In order to achieve the above, we keep the folder view and its child grid |
| // view visible with opacity 0, so that the drag_view_ on the hidden grid view |
| // will keep receiving mouse event. At the same time, we initiated a new |
| // drag_view_ in the top level grid view, and keep it moving with the hidden |
| // grid view's drag_view_, so that the dragged item can be engaged in drag and |
| // drop flow in the top level grid view. During the reparenting process, the |
| // drag_view_ in hidden grid view will dispatch the drag and drop event to |
| // the top level grid view, until the drag ends. |
| void AppListFolderView::ReparentItem( |
| AppListItemView* original_drag_view, |
| const gfx::Point& drag_point_in_folder_grid) { |
| // Convert the drag point relative to the root level AppsGridView. |
| gfx::Point to_root_level_grid = drag_point_in_folder_grid; |
| ConvertPointToTarget(items_grid_view_, |
| container_view_->apps_grid_view(), |
| &to_root_level_grid); |
| StartSetupDragInRootLevelAppsGridView(original_drag_view, to_root_level_grid); |
| container_view_->ReparentFolderItemTransit(folder_item_); |
| } |
| |
| void AppListFolderView::DispatchDragEventForReparent( |
| AppsGridView::Pointer pointer, |
| const gfx::Point& drag_point_in_folder_grid) { |
| AppsGridView* root_grid = container_view_->apps_grid_view(); |
| gfx::Point drag_point_in_root_grid = drag_point_in_folder_grid; |
| ConvertPointToTarget(items_grid_view_, root_grid, &drag_point_in_root_grid); |
| root_grid->UpdateDragFromReparentItem(pointer, drag_point_in_folder_grid); |
| } |
| |
| void AppListFolderView::DispatchEndDragEventForReparent( |
| bool events_forwarded_to_drag_drop_host, |
| bool cancel_drag) { |
| container_view_->apps_grid_view()->EndDragFromReparentItemInRootLevel( |
| events_forwarded_to_drag_drop_host, cancel_drag); |
| } |
| |
| void AppListFolderView::HideViewImmediately() { |
| SetVisible(false); |
| hide_for_reparent_ = false; |
| } |
| |
| void AppListFolderView::CloseFolderPage() { |
| accessible_name_ = ui::ResourceBundle::GetSharedInstance().GetLocalizedString( |
| IDS_APP_LIST_FOLDER_CLOSE_FOLDER_ACCESSIBILE_NAME); |
| NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true); |
| |
| GiveBackFocusToSearchBox(); |
| if (items_grid_view()->dragging()) |
| items_grid_view()->EndDrag(true); |
| items_grid_view()->ClearAnySelectedView(); |
| container_view_->ShowApps(folder_item_); |
| } |
| |
| bool AppListFolderView::IsOEMFolder() const { |
| return folder_item_->folder_type() == AppListFolderItem::FOLDER_TYPE_OEM; |
| } |
| |
| void AppListFolderView::SetRootLevelDragViewVisible(bool visible) { |
| container_view_->apps_grid_view()->SetDragViewVisible(visible); |
| } |
| |
| void AppListFolderView::GetAccessibleState(ui::AXViewState* state) { |
| state->role = ui::AX_ROLE_BUTTON; |
| state->name = accessible_name_; |
| } |
| |
| void AppListFolderView::NavigateBack(AppListFolderItem* item, |
| const ui::Event& event_flags) { |
| CloseFolderPage(); |
| } |
| |
| void AppListFolderView::GiveBackFocusToSearchBox() { |
| app_list_main_view_->search_box_view()->search_box()->RequestFocus(); |
| } |
| |
| void AppListFolderView::SetItemName(AppListFolderItem* item, |
| const std::string& name) { |
| model_->SetItemName(item, name); |
| } |
| |
| } // namespace app_list |