Show Goodies page to new Chromebook users

chrome/browser/chromeos/first_run/goodies_displayer.cc

Index: chrome/browser/chromeos/first_run/goodies_displayer.cc
diff --git a/chrome/browser/chromeos/first_run/goodies_displayer.cc b/chrome/browser/chromeos/first_run/goodies_displayer.cc
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+++ b/chrome/browser/chromeos/first_run/goodies_displayer.cc
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+// 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/chromeos/first_run/goodies_displayer.h"
+
+#include "base/files/file_util.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/login/session/user_session_manager.h"
+#include "chrome/browser/chromeos/login/startup_utils.h"
+#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
+#include "chrome/browser/prefs/pref_service_syncable.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_tabstrip.h"
+#include "chrome/common/pref_names.h"
+#include "content/public/browser/browser_thread.h"
+
+namespace chromeos {
+namespace first_run {
+
+namespace {
+
+// ChromeOS Goodies page for device's first New Window.
+const char kGoodiesURL[] = "https://www.google.com/chrome/devices/goodies.html";
+
+// Max days after initial login that we're willing to show Goodies.
+static const int kMaxDaysAfterOobeForGoodies = 14;
+
+// Checks timestamp on OOBE Complete flag file.  kCanShowOobeGoodiesPage
+// defaults to |true|; we set it to |false| (return |false|) for any device over
+// kMaxDaysAfterOobeForGoodies days old, to avoid showing it after update on
+// older devices.
+bool CheckGoodiesPrefAgainstOobeTimestamp(
+    GoodiesDisplayer::Delegate* delegate) {
+  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
+  return (delegate->GetTimeSinceOobe() <=

[achuithb, 2015/09/18 16:39:11]

Drop outer parens

[Greg Levin, 2015/09/18 18:49:27]

Done.

+          base::TimeDelta::FromDays(kMaxDaysAfterOobeForGoodies));
+}
+
+// Callback into main thread to set pref to |false| if too long since oobe, or
+// to create GoodiesDisplayer otherwise.
+void UpdateGoodiesPrefCantShow(GoodiesDisplayer::Delegate* delegate,
+                               bool can_show_goodies) {
+  if (can_show_goodies) {
+    delegate->CreateGoodiesDisplayer();
+  } else {
+    g_browser_process->local_state()->SetBoolean(prefs::kCanShowOobeGoodiesPage,
+                                                 false);
+  }
+}
+
+}  // namespace
+
+GoodiesDisplayer::Delegate::Delegate() {}
+
+GoodiesDisplayer::Delegate::~Delegate() {}
+
+void GoodiesDisplayer::Delegate::CreateGoodiesDisplayer() {
+  if (goodies_displayer_ == nullptr)

[achuithb, 2015/09/18 16:39:11]

if (!goodies_displayer_) is more succinct

[Greg Levin, 2015/09/18 18:49:27]

Done.

+    goodies_displayer_.reset(new first_run::GoodiesDisplayer(this));
+}
+
+void GoodiesDisplayer::Delegate::DestroyGoodiesDisplayer() {
+  goodies_displayer_.reset();
+}
+
+base::TimeDelta GoodiesDisplayer::Delegate::GetTimeSinceOobe() {
+  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
+  return StartupUtils::GetTimeSinceOobeFileCreation();
+}
+
+GoodiesDisplayer::GoodiesDisplayer(Delegate* delegate) : delegate_(delegate) {
+  BrowserList::AddObserver(this);
+}
+
+GoodiesDisplayer::~GoodiesDisplayer() {}
+
+// If Goodies page hasn't been shown yet, and Chromebook isn't too old, create
+// GoodiesDisplayer to observe BrowserList.
+void GoodiesDisplayer::Init(Delegate* delegate) {
+  if (g_browser_process->local_state()->GetBoolean(
+          prefs::kCanShowOobeGoodiesPage))
+    base::PostTaskAndReplyWithResult(
+        content::BrowserThread::GetBlockingPool(), FROM_HERE,
+        base::Bind(&CheckGoodiesPrefAgainstOobeTimestamp, delegate),
+        base::Bind(&UpdateGoodiesPrefCantShow, delegate));
+}
+
+// If conditions enumerated below are met, this loads the Oobe Goodies page for
+// new Chromebooks; when appropriate, it uses pref to mark page as shown,
+// removes itself from BrowserListObservers, and deletes itself.
+void GoodiesDisplayer::OnBrowserSetLastActive(Browser* browser) {
+  // 1. Not guest or incognito session (keep observing).
+  if (browser->profile()->IsOffTheRecord())
+    return;
+
+  PrefService* local_state = g_browser_process->local_state();
+  // 2. Not previously shown, or otherwise marked as unavailable.
+  if (local_state->GetBoolean(prefs::kCanShowOobeGoodiesPage)) {
+    // 3. Device not enterprise enrolled.
+    if (!g_browser_process->platform_part()
+             ->browser_policy_connector_chromeos()
+             ->IsEnterpriseManaged())
+      chrome::AddTabAt(browser, GURL(kGoodiesURL), 2, false);
+
+    // Set to |false| whether enterprise enrolled or Goodies shown.
+    local_state->SetBoolean(prefs::kCanShowOobeGoodiesPage, false);
+  }
+
+  // Regardless of how we got here, we don't henceforth need to show Goodies.
+  BrowserList::RemoveObserver(this);
+  delegate_->DestroyGoodiesDisplayer();
+}
+
+}  // namespace first_run
+}  // namespace chromeos