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

chrome/browser/ui/app_list/arc/arc_app_model_builder.cc

Index: chrome/browser/ui/app_list/arc/arc_app_model_builder.cc
diff --git a/chrome/browser/ui/app_list/arc/arc_app_model_builder.cc b/chrome/browser/ui/app_list/arc/arc_app_model_builder.cc
new file mode 100644
index 0000000000000000000000000000000000000000..445f9351bc3e6bf1b585ae8aae878291b1f4d7be
--- /dev/null
+++ b/chrome/browser/ui/app_list/arc/arc_app_model_builder.cc
@@ -0,0 +1,84 @@
+// 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.
+
+#include "chrome/browser/ui/app_list/arc/arc_app_model_builder.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_item.h"
+
+ArcAppModelBuilder::ArcAppModelBuilder(AppListControllerDelegate* controller)
+    : AppListModelBuilder(controller, ArcAppItem::kItemType) {
+}
+
+ArcAppModelBuilder::~ArcAppModelBuilder() {
+  prefs_->RemoveObserver(this);
+}
+
+void ArcAppModelBuilder::BuildModel() {
+  prefs_ = ArcAppListPrefs::Get(profile());
+
+  std::vector<std::string> app_ids = prefs_->GetAppIds();
+  for (auto& app_id : app_ids) {
+    scoped_ptr<ArcAppListPrefs::AppInfo> app_info = prefs_->GetApp(app_id);
+    if (!app_info)
+      continue;
+
+    InsertApp(CreateApp(app_id, *app_info));
+  }
+
+  prefs_->AddObserver(this);
+}
+
+ArcAppItem* ArcAppModelBuilder::GetArcAppItem(const std::string& app_id) {
+  return static_cast<ArcAppItem*>(GetAppItem(app_id));
+}
+
+scoped_ptr<ArcAppItem> ArcAppModelBuilder::CreateApp(
+    const std::string& app_id,
+    const ArcAppListPrefs::AppInfo& app_info) {
+  return make_scoped_ptr(new ArcAppItem(profile(),
+                                        GetSyncItem(app_id),
+                                        app_id,
+                                        app_info.name,
+                                        app_info.ready));
+}
+
+void ArcAppModelBuilder::OnAppRegistered(
+    const std::string& app_id,
+    const ArcAppListPrefs::AppInfo& app_info) {
+  InsertApp(CreateApp(app_id, app_info));
+}
+
+void ArcAppModelBuilder::OnAppReadyChanged(const std::string& app_id,
+                                           bool ready) {
+  ArcAppItem* app_item = GetArcAppItem(app_id);
+  if (!app_item) {
+    VLOG(2) << "Could not update the state of ARC app(" << app_id
+            << ") because it was not found.";
+    return;
+  }
+
+  app_item->SetReady(ready);
+}
+
+void ArcAppModelBuilder::OnAppIconUpdated(const std::string& app_id,
+                                          ui::ScaleFactor scale_factor) {
+  ArcAppItem* app_item = GetArcAppItem(app_id);
+  if (!app_item) {
+    VLOG(2) << "Could not update the icon of ARC app(" << app_id
+            << ") because it was not found.";
+    return;
+  }
+
+  // Initiate async icon reloading.
+  app_item->arc_app_icon()->LoadForScaleFactor(scale_factor);
+}
+
+void ArcAppModelBuilder::OnListItemMoved(size_t from_index,
+                                         size_t to_index,
+                                         app_list::AppListItem* item) {
+  // On ChromeOS we expect that ArcAppModelBuilder is initialized with
+  // AppListSyncableService and in this case this observer is not used.
+  NOTREACHED();
+}