arc-app-launcher: Minimal support for ARC app launcher.

chrome/browser/ui/app_list/arc_app_prefs.h

+// Copyright 2015 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_UI_APP_LIST_ARC_APP_PREFS_H_
+#define CHROME_BROWSER_UI_APP_LIST_ARC_APP_PREFS_H_
+
+#include <set>
+#include <vector>
+
+#include "base/files/file_path.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/observer_list.h"
+#include "chromeos/dbus/arc_bridge_client.h"
+#include "components/keyed_service/core/keyed_service.h"
+#include "ui/base/layout.h"
+
+class PrefService;
+
+namespace content {
+class BrowserContext;
+}
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+class ArcAppPrefs : public KeyedService,
+                    private chromeos::ArcBridgeClient::AppObserver {
+ public:
+  struct IconInfo {
+    ui::ScaleFactor scale_factor;
+    base::FilePath path;
+  };
+
+  struct AppInfo {
+    std::string name;
+    std::string package;
+    std::string activity;
+    bool enabled;

[elijahtaylor1, 2015/10/28 06:32:39]

maybe call this "ready" here and elsewhere to match the bridge method name? 
Enabled/Disabled already has a meaning in Apps and Extensions so it would be
best to avoid it for this

[khmel1, 2015/10/29 08:12:18]

Good point. Done

+    std::vector<IconInfo> icons;
+  };
+
+  class Observer {
+   public:
+    virtual void OnAppRegistered(const std::string& app_id,
+                                 const AppInfo& app_info) = 0;
+    virtual void OnAppEnabled(const std::string& id, bool enabled) = 0;
+    virtual void OnAppIconUpdated(const std::string& id,
+                                  const IconInfo& icon) = 0;
+  };
+
+  static ArcAppPrefs* Create(content::BrowserContext* browser_context,
+                             const base::FilePath& base_path,
+                             PrefService* prefs);
+  // Convenience function to get the ArcAppPrefs for a BrowserContext.
+  static ArcAppPrefs* Get(content::BrowserContext* context);
+  static std::string GetAppId(const std::string& package,
+                              const std::string& activity);
+
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+  ~ArcAppPrefs() override;
+
+  std::vector<std::string> GetAppIds() const;
+  scoped_ptr<AppInfo> GetApp(const std::string& app_id) const;
+
+  bool IsRegistered(const std::string& app_id);
+
+  void AddObserver(Observer* observer);
+  void RemoveObserver(Observer* observer);
+
+ private:
+  content::BrowserContext* browser_context_;
+  // Owned by the BrowserContext.
+  PrefService* prefs_;
+  base::ObserverList<Observer> observer_list_;
+  base::FilePath base_path_;
+  std::set<std::string> enable_apps_;
+
+  // See the Create methods.
+  ArcAppPrefs(content::BrowserContext* browser_context,
+              const base::FilePath& base_path,
+              PrefService* prefs);
+
+  // ArcBridgeClient::AppObserver
+  void OnAppReady(const chromeos::ArcBridgeClient::AppInfo& app) override;
+  void OnAppsRefreshed(
+      const std::vector<chromeos::ArcBridgeClient::AppInfo>& apps) override;
+
+  // Install an icon to file system in the special folder of the profile
+  // directory.
+  void InstallIcon(const std::string& app_id,
+                   ui::ScaleFactor scale_factor,
+                   const std::vector<uint8>& contentPng);
+  void InstallIconFromFileThread(const std::string& app_id,
+                                 ui::ScaleFactor scale_factor,
+                                 const std::vector<uint8>& contentPng);
+  void OnIconInstalled(const std::string& app_id,
+                       const IconInfo& icon_info);
+
+  DISALLOW_COPY_AND_ASSIGN(ArcAppPrefs);
+};
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_ARC_APP_PREFS_H_