remove toolstrips

chrome/browser/extensions/extension_shelf_model.h

-// Copyright (c) 2009 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.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SHELF_MODEL_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SHELF_MODEL_H_
-#pragma once
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/observer_list.h"
-#include "chrome/browser/extensions/extension_host.h"
-#include "chrome/common/extensions/extension.h"
-#include "chrome/common/notification_observer.h"
-#include "chrome/common/notification_registrar.h"
-
-class Browser;
-class ExtensionPrefs;
-class ExtensionShelfModelObserver;
-
-// The model representing the toolstrips on an ExtensionShelf.  The order of
-// the toolstrips is common across all of the models for a given Profile,
-// but there are multiple models.  Each model contains the hosts/views which
-// are specific to a Browser.
-class ExtensionShelfModel : public NotificationObserver {
- public:
-  explicit ExtensionShelfModel(Browser* browser);
-  virtual ~ExtensionShelfModel();
-
-  struct ToolstripItem {
-    ExtensionHost* host;
-    Extension::ToolstripInfo info;
-    void* data;
-    int height;
-    GURL url;
-  };
-
-  typedef std::vector<ToolstripItem> ToolstripList;
-  typedef ToolstripList::iterator iterator;
-
-  // Add and remove observers to changes within this ExtensionShelfModel.
-  void AddObserver(ExtensionShelfModelObserver* observer);
-  void RemoveObserver(ExtensionShelfModelObserver* observer);
-
-  // The number of toolstrips in the model.
-  int count() const { return static_cast<int>(toolstrips_.size()); }
-  bool empty() const { return toolstrips_.empty(); }
-
-  // Iterators for the toolstrips in the model.
-  iterator begin() { return toolstrips_.begin(); }
-  ExtensionShelfModel::iterator end() { return toolstrips_.end(); }
-
-  // Add |toolstrip| to the end of the shelf.
-  void AppendToolstrip(const ToolstripItem& toolstrip);
-
-  // Insert |toolstrip| and |data| at |index|.
-  void InsertToolstripAt(int index, const ToolstripItem& toolstrip);
-
-  // Remove the toolstrip at |index|.
-  void RemoveToolstripAt(int index);
-
-  // Move the toolstrip at |index| to |to_index|.
-  void MoveToolstripAt(int index, int to_index);
-
-  // Lookup the index of |host|.  Returns -1 if not present.
-  int IndexOfHost(ExtensionHost* host);
-
-  // Return the toolstrip at |index|.
-  const ToolstripItem& ToolstripAt(int index);
-
-  // Return the ToolstripItem associated with |host| or NULL if it's not
-  // present.
-  ToolstripList::iterator ToolstripForHost(ExtensionHost* host);
-
-  // Set some arbitrary data associated with a particular toolstrip.
-  void SetToolstripDataAt(int index, void* data);
-
-  // Update the ToolstripItem for |toolstrip| to set its |url| and |height|
-  // and then call ToolstripChanged for all observers.
-  // If |url| is empty, no navigation is requested.
-  void ExpandToolstrip(iterator toolstrip, const GURL& url, int height);
-
-  // Update the ToolstripItem for |toolstrip| to set its |url| and its height
-  // to 0, and then call ToolstripChanged for all observers.
-  // If |url| is empty, no navigation is requested.
-  void CollapseToolstrip(iterator toolstrip, const GURL& url);
-
-  // NotificationObserver
-  virtual void Observe(NotificationType type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
-
- private:
-  // Add all of the toolstrips from |extension|.
-  void AddExtension(Extension* extension);
-
-  // Add all of the toolstrips from each extension in |extensions|.
-  void AddExtensions(const ExtensionList* extensions);
-
-  // Remove all of the toolstrips in |extension| from the shelf.
-  void RemoveExtension(Extension* extension);
-
-  // Update prefs with the most recent changes.
-  void UpdatePrefs();
-
-  // Reloads order from prefs.
-  void SortToolstrips();
-
-  // The browser that this model is attached to.
-  Browser* browser_;
-
-  // The preferences that this model uses.
-  ExtensionPrefs* prefs_;
-
-  // Manages our notification registrations.
-  NotificationRegistrar registrar_;
-
-  // The Toolstrips loaded in this model. The model owns these objects.
-  ToolstripList toolstrips_;
-
-  // Our observers.
-  typedef ObserverList<ExtensionShelfModelObserver>
-      ExtensionShelfModelObservers;
-  ExtensionShelfModelObservers observers_;
-
-  // Whether the model has received an EXTENSIONS_READY notification.
-  bool ready_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionShelfModel);
-};
-
-// Objects implement this interface when they wish to be notified of changes to
-// the ExtensionShelfModel.
-//
-// Register your ExtensionShelfModelObserver with the ExtensionShelfModel using
-// Add/RemoveObserver methods.
-class ExtensionShelfModelObserver {
- public:
-  // A new toolstrip was inserted into ExtensionShelfModel at |index|.
-  virtual void ToolstripInsertedAt(ExtensionHost* toolstrip, int index) {}
-
-  // The specified toolstrip is being removed and destroyed.
-  virtual void ToolstripRemovingAt(ExtensionHost* toolstrip, int index) {}
-
-  // |toolstrip| moved from |from_index| to |to_index|.
-  virtual void ToolstripMoved(ExtensionHost* toolstrip,
-                              int from_index,
-                              int to_index) {}
-
-  // The specified toolstrip changed in some way (currently only size changes)
-  virtual void ToolstripChanged(ExtensionShelfModel::iterator toolstrip) {}
-
-  // There are no more toolstrips in the model.
-  virtual void ExtensionShelfEmpty() {}
-
-  // The entire model may have changed.
-  virtual void ShelfModelReloaded() {}
-
-  // The model is being destroyed.
-  virtual void ShelfModelDeleting() {}
-
- protected:
-  virtual ~ExtensionShelfModelObserver() {}
-};
-
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SHELF_MODEL_H_