ash: First pass of Applist v2.

ash/app_list/app_list_view.cc

 // 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/app_list/app_list_view.h"
 
+#include "ash/app_list/app_list.h"
+#include "ash/app_list/app_list_bubble_border.h"
 #include "ash/app_list/app_list_item_view.h"
 #include "ash/app_list/app_list_model.h"
 #include "ash/app_list/app_list_model_view.h"
 #include "ash/app_list/app_list_view_delegate.h"
+#include "ash/app_list/page_switcher.h"
+#include "ash/app_list/pagination_model.h"
+#include "ash/launcher/launcher.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/shelf_layout_manager.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/transform_util.h"
 #include "ui/views/background.h"
+#include "ui/views/bubble/bubble_frame_view.h"
+#include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 
 namespace {
 
 // 0.2 black
-const SkColor kBackgroundColor = SkColorSetARGB(0x33, 0, 0, 0);
+const SkColor kWidgetBackgroundColor = SkColorSetARGB(0x33, 0, 0, 0);
 
 const float kModelViewAnimationScaleFactor = 0.9f;
 
+const int kPreferredIconDimension = 48;
+const int kPreferredCols = 4;
+const int kPreferredRows = 4;
+// Padding space in pixels between model view and page switcher footer.
+const int kModelViewFooterPadding = 10;
+
 ui::Transform GetScaleTransform(AppListModelView* model_view) {
   gfx::Rect pixel_bounds = model_view->GetLayerBoundsInPixel();
   gfx::Point center(pixel_bounds.width() / 2, pixel_bounds.height() / 2);
   return ui::GetScaleTransform(center, kModelViewAnimationScaleFactor);
 }
 
+// Bounds returned is used for full screen mode. Use full monitor rect so that
+// the app list shade goes behind the launcher.
+gfx::Rect GetFullScreenBounds() {
+  gfx::Point cursor = gfx::Screen::GetCursorScreenPoint();
+  return gfx::Screen::GetMonitorNearestPoint(cursor).bounds();
+}
+
 }  // namespace
 
-AppListView::AppListView(
-    AppListViewDelegate* delegate,
-    const gfx::Rect& bounds)
+////////////////////////////////////////////////////////////////////////////////
+// AppListView:
+
+AppListView::AppListView(AppListViewDelegate* delegate)
     : delegate_(delegate),
+      pagination_model_(new PaginationModel),
+      bubble_style_(false),
+      bubble_border_(NULL),
       model_view_(NULL) {
-  set_background(views::Background::CreateSolidBackground(kBackgroundColor));
-  Init(bounds);
+  if (internal::AppList::UseAppListV2())
+    InitAsBubble();
+  else
+    InitAsFullscreenWidget();
 }
 
 AppListView::~AppListView() {
   // Model is going away, so set to NULL before superclass deletes child views.
   if (model_view_)
     model_view_->SetModel(NULL);
 }
 
 void AppListView::AnimateShow(int duration_ms) {
+  if (bubble_style_)
+    return;
+
   ui::Layer* layer = model_view_->layer();
   ui::ScopedLayerAnimationSettings animation(layer->GetAnimator());
   animation.SetTransitionDuration(
       base::TimeDelta::FromMilliseconds(duration_ms));
   animation.SetTweenType(ui::Tween::EASE_OUT);
   model_view_->SetTransform(ui::Transform());
 }
 
 void AppListView::AnimateHide(int duration_ms) {
+  if (bubble_style_)
+    return;
+
   ui::Layer* layer = model_view_->layer();
   ui::ScopedLayerAnimationSettings animation(layer->GetAnimator());
   animation.SetTransitionDuration(
       base::TimeDelta::FromMilliseconds(duration_ms));
   animation.SetTweenType(ui::Tween::EASE_IN);
   model_view_->SetTransform(GetScaleTransform(model_view_));
 }
 
 void AppListView::Close() {
   if (GetWidget()->IsVisible())
     Shell::GetInstance()->ToggleAppList();
 }
 
-void AppListView::Init(const gfx::Rect& bounds) {
-  model_view_ = new AppListModelView(this);
+void AppListView::UpdateBounds() {
+  if (bubble_style_)
+    SizeToContents();
+  else
+    GetWidget()->SetBounds(GetFullScreenBounds());
+}
+
+void AppListView::InitAsFullscreenWidget() {
+  bubble_style_ = false;
+  set_background(views::Background::CreateSolidBackground(
+      kWidgetBackgroundColor));
+
+  model_view_ = new AppListModelView(this, pagination_model_.get());
   model_view_->SetPaintToLayer(true);
   model_view_->layer()->SetFillsBoundsOpaquely(false);
   AddChildView(model_view_);
 
   views::Widget::InitParams widget_params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   widget_params.delegate = this;
-  widget_params.keep_on_top = true;
   widget_params.transparent = true;
   widget_params.parent = Shell::GetInstance()->GetContainer(
       internal::kShellWindowId_AppListContainer);
 
   views::Widget* widget = new views::Widget;
   widget->Init(widget_params);
   widget->SetContentsView(this);
-  widget->SetBounds(bounds);
+
+  widget->SetBounds(GetFullScreenBounds());
 
   // Turns off default animation.
   widget->SetVisibilityChangedAnimationsEnabled(false);
 
   // Sets initial transform. AnimateShow changes it back to identity transform.
   model_view_->SetTransform(GetScaleTransform(model_view_));
   UpdateModel();
 }
 
+void AppListView::InitAsBubble() {
+  bubble_style_ = true;
+  set_background(NULL);
+
+  SetLayoutManager(new views::BoxLayout(
+      views::BoxLayout::kVertical, 0, 0, kModelViewFooterPadding));
+
+  model_view_ = new AppListModelView(this, pagination_model_.get());
+  model_view_->SetLayout(kPreferredIconDimension,
+                         kPreferredCols,
+                         kPreferredRows);
+  AddChildView(model_view_);
+
+  PageSwitcher* page_switcher = new PageSwitcher(pagination_model_.get());
+  AddChildView(page_switcher);
+
+  set_anchor_view(Shell::GetInstance()->launcher()->GetAppListButtonView());
+  set_parent_window(Shell::GetInstance()->GetContainer(
+      internal::kShellWindowId_AppListContainer));
+  set_close_on_deactivate(false);
+  views::BubbleDelegateView::CreateBubble(this);
+
+  // Resets default background since AppListBubbleBorder paints background.
+  GetBubbleFrameView()->set_background(NULL);
+
+  // Overrides border with AppListBubbleBorder.
+  bubble_border_ = new AppListBubbleBorder(this);
+  GetBubbleFrameView()->SetBubbleBorder(bubble_border_);
+  SizeToContents();  // Recalcuates with new border.
+
+  UpdateModel();
+}
+
 void AppListView::UpdateModel() {
   if (delegate_.get()) {
     scoped_ptr<AppListModel> new_model(new AppListModel);
     delegate_->SetModel(new_model.get());
     delegate_->UpdateModel(std::string());
     model_view_->SetModel(new_model.get());
     model_.reset(new_model.release());
   }
 }
 
 views::View* AppListView::GetInitiallyFocusedView() {
   return model_view_;
 }
 
 void AppListView::Layout() {
   gfx::Rect rect(GetContentsBounds());
   if (rect.IsEmpty())
     return;
 
-  // Gets work area rect, which is in screen coordinates.
-  gfx::Rect workarea = Shell::GetInstance()->shelf()->IsVisible() ?
-      ScreenAsh::GetUnmaximizedWorkAreaBounds(GetWidget()->GetNativeView()) :
-      gfx::Screen::GetMonitorNearestWindow(
-          GetWidget()->GetNativeView()).work_area();
+  if (bubble_style_) {
+    views::View::Layout();
+  } else {
+    // Gets work area rect, which is in screen coordinates.
+    gfx::Rect workarea = Shell::GetInstance()->shelf()->IsVisible() ?
+        ScreenAsh::GetUnmaximizedWorkAreaBounds(GetWidget()->GetNativeView()) :
+        gfx::Screen::GetMonitorNearestWindow(
+            GetWidget()->GetNativeView()).work_area();
 
-  // Converts |workarea| into view's coordinates.
-  gfx::Point origin(workarea.origin());
-  views::View::ConvertPointFromScreen(this, &origin);
-  workarea.Offset(-origin.x(), -origin.y());
+    // Converts |workarea| into view's coordinates.
+    gfx::Point origin(workarea.origin());
+    views::View::ConvertPointFromScreen(this, &origin);
+    workarea.Offset(-origin.x(), -origin.y());
 
-  rect = rect.Intersect(workarea);
-  model_view_->SetBoundsRect(rect);
+    rect = rect.Intersect(workarea);
+    model_view_->SetBoundsRect(rect);
+  }
 }
 
 bool AppListView::OnKeyPressed(const views::KeyEvent& event) {
   if (event.key_code() == ui::VKEY_ESCAPE) {
     Close();
     return true;
   }
 
   return false;
 }
 
 bool AppListView::OnMousePressed(const views::MouseEvent& event) {
-  // If mouse click reaches us, this means user clicks on blank area. So close.
-  Close();
+  // For full screen mode, if mouse click reaches us, this means user clicks
+  // on blank area. So close.
+  if (!bubble_style_)
+    Close();
 
   return true;
 }
 
 void AppListView::ButtonPressed(views::Button* sender,
                                 const views::Event& event) {
   if (sender->GetClassName() != AppListItemView::kViewClassName)
     return;
 
   if (delegate_.get()) {
     delegate_->OnAppListItemActivated(
         static_cast<AppListItemView*>(sender)->model(),
         event.flags());
   }
   Close();
 }
 
+gfx::Rect AppListView::GetBubbleBounds() {
+  // This happens before replacing the default border.
+  if (!bubble_border_)
+    return views::BubbleDelegateView::GetBubbleBounds();
+
+  const int old_arrow_offset = bubble_border_->arrow_offset();
+  const gfx::Rect anchor_rect = GetAnchorRect();
+
+  bubble_border_->set_arrow_offset(0);
+  gfx::Rect bubble_rect = GetBubbleFrameView()->GetUpdatedWindowBounds(
+      anchor_rect,
+      GetPreferredSize(),
+      false /* try_mirroring_arrow */);
+
+  gfx::Rect monitor_rect = gfx::Screen::GetMonitorNearestPoint(
+      anchor_rect.CenterPoint()).work_area();
+  if (monitor_rect.IsEmpty() || monitor_rect.Contains(bubble_rect))
+    return bubble_rect;
+
+  int offset = 0;
+  if (bubble_rect.x() < monitor_rect.x())
+    offset = monitor_rect.x() - bubble_rect.x();
+  else if (bubble_rect.right() > monitor_rect.right())
+    offset = monitor_rect.right() - bubble_rect.right();
+
+  bubble_rect.set_x(bubble_rect.x() + offset);
+
+  // Moves bubble arrow in the opposite direction. i.e. If bubble bounds is
+  // moved to right (positive offset), we need to move arrow to left so that
+  // it points to the same position before the move.
+  bubble_border_->set_arrow_offset(-offset);
+
+  // Repaints border if arrow offset is changed.
+  if (bubble_border_->arrow_offset() != old_arrow_offset)
+    GetBubbleFrameView()->SchedulePaint();
+
+  return bubble_rect;
+}
+
 }  // namespace ash