[Aura] Implement views-based applist.

chrome/browser/ui/views/aura/app_list/app_list_model.cc

Index: chrome/browser/ui/views/aura/app_list/app_list_model.cc
diff --git a/chrome/browser/ui/views/aura/app_list/app_list_model.cc b/chrome/browser/ui/views/aura/app_list/app_list_model.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b5ad2db147006bf09e62aeb1fcb22fa21df8c034
--- /dev/null
+++ b/chrome/browser/ui/views/aura/app_list/app_list_model.cc
@@ -0,0 +1,123 @@
+// Copyright (c) 2011 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/views/aura/app_list/app_list_model.h"
+
+#include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_list.h"
+#include "chrome/browser/ui/views/aura/app_list/browser_command_item.h"
+#include "chrome/browser/ui/views/aura/app_list/extension_item.h"
+#include "chrome/browser/ui/webui/ntp/app_launcher_handler.h"
+#include "chrome/common/pref_names.h"
+#include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
+#include "ui/aura_shell/app_list/app_list_item_group_model.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace {
+
+// Gets or creates group for given |extension| in |model|. The created group
+// is added to |model| and owned by it.
+aura_shell::AppListItemGroupModel* GetOrCreateGroup(
+    int page_index,
+    const ListValue* app_page_names,
+    AppListModel* model) {
+  if (page_index >= model->item_count()) {
+    for (int i = model->item_count(); i <= page_index; ++i) {
+      std::string title;
+      if (!app_page_names->GetString(i, &title))
+        title = l10n_util::GetStringUTF8(IDS_APP_DEFAULT_PAGE_NAME);
+
+      aura_shell::AppListItemGroupModel* group =
+          new aura_shell::AppListItemGroupModel(title);
+      model->Add(group);
+    }
+  }
+
+  return model->item_at(page_index);
+}
+
+// Binary predict to sort extension apps. Smaller launch ordinal takes
+// precedence.
+bool ExtensionAppPrecedes(const ExtensionItem* a, const ExtensionItem* b) {
+  return a->launch_ordinal().LessThan(b->launch_ordinal());
+}
+
+}  // namespace
+
+AppListModel::AppListModel(Profile* profile)
+    : profile_(profile) {
+}
+
+AppListModel::~AppListModel() {
+}
+
+void AppListModel::Init() {
+  GetExtensionApps();
+  GetBrowserCommands();
+}
+
+void AppListModel::GetExtensionApps() {
+  DCHECK(profile_);
+  ExtensionService* service = profile_->GetExtensionService();
+  if (!service)
+    return;
+
+  // Get extension apps.
+  std::vector<ExtensionItem*> items;
+  const ExtensionSet* extensions = service->extensions();
+  for (ExtensionSet::const_iterator app = extensions->begin();
+       app != extensions->end(); ++app) {
+    if (AppLauncherHandler::IsAppExcludedFromList(*app))
+      continue;
+
+    items.push_back(new ExtensionItem(profile_, *app));
+  }
+
+  // Sort by launch ordinal.
+  std::sort(items.begin(), items.end(), &ExtensionAppPrecedes);
+
+  // Put all items into model and group them by page ordinal.
+  PrefService* prefs = profile_->GetPrefs();
+  const ListValue* app_page_names = prefs->GetList(prefs::kNTPAppPageNames);
+  for (size_t i = 0; i < items.size(); ++i) {
+    ExtensionItem* item = items[i];
+
+    aura_shell::AppListItemGroupModel* group = GetOrCreateGroup(
+        item->page_index(),
+        app_page_names,
+        this);
+
+    group->AddItem(item);
+  }
+}
+
+void AppListModel::GetBrowserCommands() {
+  Browser* browser = BrowserList::GetLastActiveWithProfile(profile_);
+  if (!browser)
+    return;
+
+  // Uses the first group to put browser commands
+  aura_shell::AppListItemGroupModel* group = NULL;
+  if (item_count() == 0) {
+    group = new aura_shell::AppListItemGroupModel("");
+    Add(group);
+  } else {
+    group = item_at(0);
+  }
+
+  group->AddItem(new BrowserCommandItem(browser,
+                                        IDC_NEW_INCOGNITO_WINDOW,
+                                        IDS_APP_LIST_INCOGNITO,
+                                        IDR_APP_LIST_INCOGNITO));
+  group->AddItem(new BrowserCommandItem(browser,
+                                        IDC_OPTIONS,
+                                        IDS_APP_LIST_SETTINGS,
+                                        IDR_APP_LIST_SETTINGS));
+}
+