Fork a subset of ash/shelf for use in mash.

mash/shelf/shelf_model.h

Index: mash/shelf/shelf_model.h
diff --git a/ash/shelf/shelf_model.h b/mash/shelf/shelf_model.h
similarity index 67%
copy from ash/shelf/shelf_model.h
copy to mash/shelf/shelf_model.h
index 01ab2a924accacceb25c5bf9725200f705a2c7ec..99c5767699f8abf9f412d789162036b83c9581d3 100644
--- a/ash/shelf/shelf_model.h
+++ b/mash/shelf/shelf_model.h
@@ -2,20 +2,26 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SHELF_SHELF_MODEL_H_
-#define ASH_SHELF_SHELF_MODEL_H_
+#ifndef MASH_SHELF_SHELF_MODEL_H_
+#define MASH_SHELF_SHELF_MODEL_H_
 
-#include "ash/ash_export.h"
-#include "ash/shelf/shelf_item_types.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
+#include "mash/shelf/shelf_item_types.h"
+#include "mash/wm/public/interfaces/user_window_controller.mojom.h"
+#include "mojo/public/cpp/bindings/binding.h"
 
-namespace ash {
+namespace mojo {
+class ApplicationImpl;
+}
+
+namespace mash {
+namespace shelf {
 
 class ShelfModelObserver;
 
 // Model used by ShelfView.
-class ASH_EXPORT ShelfModel {
+class ShelfModel : public mash::wm::mojom::UserWindowObserver {
  public:
   enum Status {
     STATUS_NORMAL,
@@ -23,8 +29,8 @@ class ASH_EXPORT ShelfModel {
     STATUS_LOADING,
   };
 
-  ShelfModel();
-  ~ShelfModel();
+  explicit ShelfModel(mojo::ApplicationImpl* app);
+  ~ShelfModel() override;
 
   // Adds a new item to the model. Returns the resulting index.
   int Add(const ShelfItem& item);
@@ -80,12 +86,28 @@ class ASH_EXPORT ShelfModel {
   void AddObserver(ShelfModelObserver* observer);
   void RemoveObserver(ShelfModelObserver* observer);
 
+  // TODO(msw): Do not expose this member, used by ShelfView to FocusUserWindow.
+  mash::wm::mojom::UserWindowController* user_window_controller() const {
+    return user_window_controller_.get();
+  }
+
  private:
+   // Overridden from mash::wm::mojom::UserWindowObserver:
+   void OnUserWindowObserverAdded(
+       mojo::Array<mash::wm::mojom::UserWindowPtr> user_windows) override;
+   void OnUserWindowAdded(mash::wm::mojom::UserWindowPtr user_window) override;
+   void OnUserWindowRemoved(uint32_t window_id) override;
+   void OnUserWindowTitleChanged(uint32_t window_id,
+                                 const mojo::String& window_title) override;
+
   // Makes sure |index| is in line with the type-based order of items. If that
   // is not the case, adjusts index by shifting it to the valid range and
   // returns the new value.
   int ValidateInsertionIndex(ShelfItemType type, int index) const;
 
+  // Return the index of the item by window id.
+  int ItemIndexByWindowID(uint32_t window_id) const;
+
   // ID assigned to the next item.
   ShelfID next_id_;
 
@@ -93,9 +115,13 @@ class ASH_EXPORT ShelfModel {
   Status status_;
   base::ObserverList<ShelfModelObserver> observers_;
 
+  mash::wm::mojom::UserWindowControllerPtr user_window_controller_;
+  mojo::Binding<mash::wm::mojom::UserWindowObserver> binding_;
+
   DISALLOW_COPY_AND_ASSIGN(ShelfModel);
 };
 
-}  // namespace ash
+}  // namespace shelf
+}  // namespace mash
 
-#endif  // ASH_SHELF_SHELF_MODEL_H_
+#endif  // MASH_SHELF_SHELF_MODEL_H_