chrome/browser/android/prerender_condition_platform.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/prefs/pref_service.h"
   6 #include "chrome/browser/android/prerender_condition_platform.h"
   7 #include "chrome/browser/browser_process.h"
   8 #include "chrome/browser/profiles/profile_manager.h"
   9 #include "chrome/common/pref_names.h"
  10
  11 namespace android {
  12
  13 namespace {
  14
  15 const char kAllowPrerender[] = "allow-prerender";
  16
  17 class BooleanWrapper : public base::SupportsUserData::Data {
  18  public:
  19   explicit BooleanWrapper(bool b) : m_b(b) { }
  20   virtual ~BooleanWrapper() { }
  21
  22   operator bool() const { return m_b; }
  23  private:
  24   bool m_b;
  25   DISALLOW_COPY_AND_ASSIGN(BooleanWrapper);
  26 };
  27
  28 }  // namespace
  29
  30 PrerenderConditionPlatform::PrerenderConditionPlatform(
  31     content::BrowserContext* context)
  32     : context_(context) {}
  33
  34 PrerenderConditionPlatform::~PrerenderConditionPlatform() {}
  35
  36 bool PrerenderConditionPlatform::CanPrerender() const {
  37   base::SupportsUserData::Data* data = context_->GetUserData(kAllowPrerender);
  38   if (!data)
  39     return true;
  40   BooleanWrapper* b = static_cast<BooleanWrapper*>(data);
  41   return *b;
  42 }
  43
  44 void PrerenderConditionPlatform::SetEnabled(content::BrowserContext* context,
  45                                             bool enabled) {
  46   BooleanWrapper* wrapper = new BooleanWrapper(enabled);
  47   context->SetUserData(kAllowPrerender, wrapper);
  48 }
  49
  50 }  // namespace android