mash: Create and show a shelf in mash.

ash/common/shelf/wm_shelf.cc

Index: ash/common/shelf/wm_shelf.cc
diff --git a/ash/common/shelf/wm_shelf.cc b/ash/common/shelf/wm_shelf.cc
index 646ebed36025f0bcefa8beb4ad2545123599b969..ddeba24afa2d7e6c98e3d3963f2d3fe5d6123a08 100644
--- a/ash/common/shelf/wm_shelf.cc
+++ b/ash/common/shelf/wm_shelf.cc
@@ -3,11 +3,46 @@
 // found in the LICENSE file.
 
 #include "ash/common/shelf/wm_shelf.h"
-
+#include "ash/common/shelf/wm_shelf_observer.h"
+#include "ash/common/wm_lookup.h"
+#include "ash/shelf/shelf.h"
+#include "ash/shelf/shelf_layout_manager.h"
 #include "base/logging.h"
 
 namespace ash {
 
+void WmShelf::SetShelf(std::unique_ptr<Shelf> shelf) {
+  DCHECK(!shelf_ || !shelf);
+  shelf_ = std::move(shelf);
+}
+
+void WmShelf::SetShelfLayoutManager(ShelfLayoutManager* shelf_layout_manager) {
+  DCHECK(!shelf_layout_manager_ || !shelf_layout_manager);
+
+  if (shelf_layout_manager_)
+    shelf_layout_manager_->RemoveObserver(this);
+
+  shelf_layout_manager_ = shelf_layout_manager;
+
+  if (shelf_layout_manager_)
+    shelf_layout_manager_->AddObserver(this);
+}
+
+WmWindow* WmShelf::GetWindow() {
+  // Use |shelf_layout_manager_| to access ShelfWidget because it is set before
+  // before the Shelf instance is available.
+  return WmLookup::Get()->GetWindowForWidget(
+      shelf_layout_manager_->shelf_widget());
+}
+
+ShelfAlignment WmShelf::GetAlignment() const {
+  return shelf_ ? shelf_->alignment() : SHELF_ALIGNMENT_BOTTOM_LOCKED;
+}
+
+void WmShelf::SetAlignment(ShelfAlignment alignment) {
+  shelf_->SetAlignment(alignment);
+}
+
 bool WmShelf::IsHorizontalAlignment() const {
   switch (GetAlignment()) {
     case SHELF_ALIGNMENT_BOTTOM:
@@ -41,4 +76,128 @@ int WmShelf::PrimaryAxisValue(int horizontal, int vertical) const {
   return IsHorizontalAlignment() ? horizontal : vertical;
 }
 
+ShelfAutoHideBehavior WmShelf::GetAutoHideBehavior() const {
+  return shelf_->auto_hide_behavior();
+}
+
+void WmShelf::SetAutoHideBehavior(ShelfAutoHideBehavior behavior) {
+  shelf_->SetAutoHideBehavior(behavior);
+}
+
+ShelfAutoHideState WmShelf::GetAutoHideState() const {
+  return shelf_layout_manager_->auto_hide_state();
+}
+
+void WmShelf::UpdateAutoHideState() {
+  shelf_layout_manager_->UpdateAutoHideState();
+}
+
+ShelfBackgroundType WmShelf::GetBackgroundType() const {
+  return shelf_layout_manager_->shelf_widget()->GetBackgroundType();
+}
+
+WmDimmerView* WmShelf::CreateDimmerView(bool disable_animations_for_test) {
+  return nullptr;
+}
+
+bool WmShelf::IsDimmed() const {
+  return shelf_layout_manager_->shelf_widget()->GetDimsShelf();
+}
+
+void WmShelf::SchedulePaint() {
+  // Can be called during shutdown if the overflow bubble is visible.
+  if (shelf_)
+    shelf_->SchedulePaint();
+}
+
+bool WmShelf::IsVisible() const {
+  return shelf_->IsVisible();
+}
+
+void WmShelf::UpdateVisibilityState() {
+  if (shelf_layout_manager_)
+    shelf_layout_manager_->UpdateVisibilityState();
+}
+
+ShelfVisibilityState WmShelf::GetVisibilityState() const {
+  return shelf_layout_manager_ ? shelf_layout_manager_->visibility_state()
+                               : SHELF_HIDDEN;
+}
+
+gfx::Rect WmShelf::GetIdealBounds() {
+  return shelf_layout_manager_->GetIdealBounds();
+}
+
+gfx::Rect WmShelf::GetUserWorkAreaBounds() const {
+  return shelf_layout_manager_ ? shelf_layout_manager_->user_work_area_bounds()
+                               : gfx::Rect();
+}
+
+void WmShelf::UpdateIconPositionForWindow(WmWindow* window) {
+  shelf_->UpdateIconPositionForWindow(window);
+}
+
+gfx::Rect WmShelf::GetScreenBoundsOfItemIconForWindow(WmWindow* window) {
+  return shelf_->GetScreenBoundsOfItemIconForWindow(window);
+}
+
+bool WmShelf::ProcessGestureEvent(const ui::GestureEvent& event) {
+  // Can be called at login screen.
+  if (!shelf_layout_manager_)
+    return false;
+  return shelf_layout_manager_->ProcessGestureEvent(event);
+}
+
+void WmShelf::AddObserver(WmShelfObserver* observer) {
+  observers_.AddObserver(observer);
+}
+
+void WmShelf::RemoveObserver(WmShelfObserver* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+void WmShelf::NotifyShelfIconPositionsChanged() {
+  FOR_EACH_OBSERVER(WmShelfObserver, observers_, OnShelfIconPositionsChanged());
+}
+
+void WmShelf::SetKeyboardBoundsForTesting(const gfx::Rect& bounds) {
+  shelf_layout_manager_->OnKeyboardBoundsChanging(bounds);
+}
+
+ShelfLockingManager* WmShelf::GetShelfLockingManagerForTesting() {
+  return shelf_->shelf_locking_manager_for_testing();
+}
+
+ShelfView* WmShelf::GetShelfViewForTesting() {
+  return shelf_->shelf_view_for_testing();
+}
+
+WmShelf::WmShelf() {}
+
+WmShelf::~WmShelf() {
+  SetShelfLayoutManager(nullptr);
+}
+
+void WmShelf::WillDeleteShelfLayoutManager() {
+  SetShelfLayoutManager(nullptr);
+}
+
+void WmShelf::WillChangeVisibilityState(ShelfVisibilityState new_state) {
+  FOR_EACH_OBSERVER(WmShelfObserver, observers_,
+                    WillChangeVisibilityState(new_state));
+}
+
+void WmShelf::OnAutoHideStateChanged(ShelfAutoHideState new_state) {
+  FOR_EACH_OBSERVER(WmShelfObserver, observers_,
+                    OnAutoHideStateChanged(new_state));
+}
+
+void WmShelf::OnBackgroundUpdated(ShelfBackgroundType background_type,
+                                  BackgroundAnimatorChangeType change_type) {
+  if (background_type == GetBackgroundType())
+    return;
+  FOR_EACH_OBSERVER(WmShelfObserver, observers_,
+                    OnBackgroundTypeChanged(background_type, change_type));
+}
+
 }  // namespace ash