chrome/browser/chrome_quota_permission_context.cc

   1 // Copyright (c) 2011 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 "chrome/browser/chrome_quota_permission_context.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "base/utf_string_conversions.h"
  11 #include "chrome/browser/infobars/infobar_tab_helper.h"
  12 #include "chrome/browser/prefs/pref_service.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
  15 #include "chrome/browser/tab_contents/tab_util.h"
  16 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
  17 #include "chrome/common/pref_names.h"
  18 #include "content/public/browser/browser_thread.h"
  19 #include "content/public/browser/navigation_details.h"
  20 #include "googleurl/src/gurl.h"
  21 #include "grit/generated_resources.h"
  22 #include "grit/locale_settings.h"
  23 #include "net/base/net_util.h"
  24 #include "ui/base/l10n/l10n_util.h"
  25 #include "webkit/quota/quota_types.h"
  26
  27 using content::BrowserThread;
  28 using content::WebContents;
  29
  30 namespace {
  31
  32 // If we requested larger quota than this threshold, show a different
  33 // message to the user.
  34 const int64 kRequestLargeQuotaThreshold = 5 * 1024 * 1024;
  35
  36 class RequestQuotaInfoBarDelegate : public ConfirmInfoBarDelegate {
  37  public:
  38   typedef QuotaPermissionContext::PermissionCallback PermissionCallback;
  39
  40   RequestQuotaInfoBarDelegate(
  41       InfoBarTabHelper* infobar_helper,
  42       ChromeQuotaPermissionContext* context,
  43       const GURL& origin_url,
  44       int64 requested_quota,
  45       const std::string& display_languages,
  46       const PermissionCallback& callback)
  47       : ConfirmInfoBarDelegate(infobar_helper),
  48         context_(context),
  49         origin_url_(origin_url),
  50         display_languages_(display_languages),
  51         requested_quota_(requested_quota),
  52         callback_(callback) {}
  53
  54  private:
  55   virtual ~RequestQuotaInfoBarDelegate() {
  56     if (!callback_.is_null())
  57       context_->DispatchCallbackOnIOThread(
  58           callback_, QuotaPermissionContext::kResponseCancelled);
  59   }
  60
  61   virtual bool ShouldExpire(
  62       const content::LoadCommittedDetails& details)
  63       const OVERRIDE {
  64     return false;
  65   }
  66
  67   virtual string16 GetMessageText() const OVERRIDE;
  68   virtual void InfoBarDismissed() OVERRIDE;
  69   virtual bool Accept() OVERRIDE;
  70   virtual bool Cancel() OVERRIDE;
  71
  72   scoped_refptr<ChromeQuotaPermissionContext> context_;
  73   GURL origin_url_;
  74   std::string display_languages_;
  75   int64 requested_quota_;
  76   PermissionCallback callback_;
  77   DISALLOW_COPY_AND_ASSIGN(RequestQuotaInfoBarDelegate);
  78 };
  79
  80 void RequestQuotaInfoBarDelegate::InfoBarDismissed() {
  81   context_->DispatchCallbackOnIOThread(
  82       callback_, QuotaPermissionContext::kResponseCancelled);
  83 }
  84
  85 string16 RequestQuotaInfoBarDelegate::GetMessageText() const {
  86   return l10n_util::GetStringFUTF16(
  87       (requested_quota_ > kRequestLargeQuotaThreshold ?
  88           IDS_REQUEST_LARGE_QUOTA_INFOBAR_QUESTION :
  89           IDS_REQUEST_QUOTA_INFOBAR_QUESTION),
  90       net::FormatUrl(origin_url_, display_languages_));
  91 }
  92
  93 bool RequestQuotaInfoBarDelegate::Accept() {
  94   context_->DispatchCallbackOnIOThread(
  95       callback_, QuotaPermissionContext::kResponseAllow);
  96   return true;
  97 }
  98
  99 bool RequestQuotaInfoBarDelegate::Cancel() {
 100   context_->DispatchCallbackOnIOThread(
 101       callback_, QuotaPermissionContext::kResponseCancelled);
 102   return true;
 103 }
 104
 105 }  // anonymous namespace
 106
 107 ChromeQuotaPermissionContext::ChromeQuotaPermissionContext() {
 108 }
 109
 110 ChromeQuotaPermissionContext::~ChromeQuotaPermissionContext() {
 111 }
 112
 113 void ChromeQuotaPermissionContext::RequestQuotaPermission(
 114     const GURL& origin_url,
 115     quota::StorageType type,
 116     int64 requested_quota,
 117     int render_process_id,
 118     int render_view_id,
 119     const PermissionCallback& callback) {
 120   if (type != quota::kStorageTypePersistent) {
 121     // For now we only support requesting quota with this interface
 122     // for Persistent storage type.
 123     callback.Run(kResponseDisallow);
 124     return;
 125   }
 126
 127   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
 128     BrowserThread::PostTask(
 129         BrowserThread::UI, FROM_HERE,
 130         base::Bind(&ChromeQuotaPermissionContext::RequestQuotaPermission, this,
 131                    origin_url, type, requested_quota, render_process_id,
 132                    render_view_id, callback));
 133     return;
 134   }
 135
 136   WebContents* web_contents =
 137       tab_util::GetWebContentsByID(render_process_id, render_view_id);
 138   if (!web_contents) {
 139     // The tab may have gone away or the request may not be from a tab.
 140     LOG(WARNING) << "Attempt to request quota tabless renderer: "
 141                  << render_process_id << "," << render_view_id;
 142     DispatchCallbackOnIOThread(callback, kResponseCancelled);
 143     return;
 144   }
 145
 146   TabContentsWrapper* wrapper =
 147       TabContentsWrapper::GetCurrentWrapperForContents(web_contents);
 148   InfoBarTabHelper* infobar_helper = wrapper->infobar_tab_helper();
 149   infobar_helper->AddInfoBar(new RequestQuotaInfoBarDelegate(
 150       infobar_helper, this, origin_url, requested_quota,
 151       wrapper->profile()->GetPrefs()->GetString(prefs::kAcceptLanguages),
 152       callback));
 153 }
 154
 155 void ChromeQuotaPermissionContext::DispatchCallbackOnIOThread(
 156     const PermissionCallback& callback,
 157     Response response) {
 158   DCHECK_EQ(false, callback.is_null());
 159
 160   if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
 161     BrowserThread::PostTask(
 162         BrowserThread::IO, FROM_HERE,
 163         base::Bind(&ChromeQuotaPermissionContext::DispatchCallbackOnIOThread,
 164                    this, callback, response));
 165     return;
 166   }
 167
 168   callback.Run(response);
 169 }