aura: Implement app list M19 mock.

ash/app_list/app_list_view.cc

Index: ash/app_list/app_list_view.cc
diff --git a/ash/app_list/app_list_view.cc b/ash/app_list/app_list_view.cc
index 9aa341085838ab3703a66c724e08695cf47ae6e3..c68312ef6894a4c4780a309040b52b4a6b02ede0 100644
--- a/ash/app_list/app_list_view.cc
+++ b/ash/app_list/app_list_view.cc
@@ -4,22 +4,33 @@
 
 #include "ash/app_list/app_list_view.h"
 
-#include "ash/app_list/app_list_groups_view.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/shell.h"
-#include "ui/views/layout/fill_layout.h"
+#include "ui/gfx/screen.h"
+#include "ui/views/background.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 
+namespace {
+
+// Margins in pixels from work area edges.
+const int kMargin = 50;
+
+// 0.4 black
+const SkColor kBackgroundColor = SkColorSetARGB(0x66, 0, 0, 0);
+
+}  // namespace
+
 AppListView::AppListView(
-    AppListModel* model,
     AppListViewDelegate* delegate,
     const gfx::Rect& bounds)
-    : model_(model),
-      delegate_(delegate) {
+    : delegate_(delegate),
+      model_view_(NULL) {
+  set_background(views::Background::CreateSolidBackground(kBackgroundColor));
   Init(bounds);
 }
 
@@ -32,13 +43,11 @@ void AppListView::Close() {
 }
 
 void AppListView::Init(const gfx::Rect& bounds) {
-  SetLayoutManager(new views::FillLayout);
-  AppListGroupsView* groups_view = new AppListGroupsView(model_.get(), this);
-  AddChildView(groups_view);
+  model_view_ = new AppListModelView(this);
+  AddChildView(model_view_);
 
   views::Widget::InitParams widget_params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
-  widget_params.bounds = bounds;
   widget_params.delegate = this;
   widget_params.keep_on_top = true;
   widget_params.transparent = true;
@@ -46,9 +55,41 @@ void AppListView::Init(const gfx::Rect& bounds) {
   views::Widget* widget = new views::Widget;
   widget->Init(widget_params);
   widget->SetContentsView(this);
+  widget->SetBounds(bounds);
+
+  UpdateModel();
+}
+
+void AppListView::UpdateModel() {
+  if (delegate_.get()) {
+    scoped_ptr<AppListModel> new_model(new AppListModel);
+    delegate_->BuildAppListModel(std::string(), new_model.get());
+    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;
 
-  if (groups_view->GetFocusedTile())
-    groups_view->GetFocusedTile()->RequestFocus();
+  // Gets work area rect, which is in screen coordinates.
+  gfx::Rect workarea = gfx::Screen::GetMonitorWorkAreaNearestWindow(
+      GetWidget()->GetNativeView());
+
+  // 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);
+  rect.Inset(kMargin, kMargin);
+  model_view_->SetBoundsRect(rect);
 }
 
 bool AppListView::OnKeyPressed(const views::KeyEvent& event) {
@@ -67,10 +108,16 @@ bool AppListView::OnMousePressed(const views::MouseEvent& event) {
   return true;
 }
 
-void AppListView::AppListItemActivated(AppListItemView* sender,
-                                       int event_flags) {
-  if (delegate_.get())
-    delegate_->OnAppListItemActivated(sender->model(), event_flags);
+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();
 }