ios/chrome/browser/infobars/infobar_manager_impl.cc

   1 // Copyright 2014 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 "ios/chrome/browser/infobars/infobar_manager_impl.h"
   6
   7 #include "components/infobars/core/confirm_infobar_delegate.h"
   8 #include "components/infobars/core/infobar.h"
   9 #include "components/infobars/core/infobar_delegate.h"
  10 #include "ios/chrome/browser/infobars/infobar_utils.h"
  11 #include "ios/web/public/load_committed_details.h"
  12 #include "ios/web/public/navigation_item.h"
  13 #include "ios/web/public/navigation_manager.h"
  14 #include "ios/web/public/web_state/web_state.h"
  15 #include "ui/base/page_transition_types.h"
  16
  17 DEFINE_WEB_STATE_USER_DATA_KEY(InfoBarManagerImpl);
  18
  19 namespace {
  20
  21 infobars::InfoBarDelegate::NavigationDetails
  22 NavigationDetailsFromLoadCommittedDetails(
  23     const web::LoadCommittedDetails& load_details) {
  24   infobars::InfoBarDelegate::NavigationDetails navigation_details;
  25   navigation_details.entry_id = load_details.item->GetUniqueID();
  26   const ui::PageTransition transition = load_details.item->GetTransitionType();
  27   navigation_details.is_navigation_to_different_page =
  28       ui::PageTransitionIsMainFrame(transition) && !load_details.is_in_page;
  29   // web::LoadCommittedDetails doesn't store this information, default to false.
  30   navigation_details.did_replace_entry = false;
  31   navigation_details.is_reload =
  32       ui::PageTransitionCoreTypeIs(transition, ui::PAGE_TRANSITION_RELOAD);
  33   navigation_details.is_redirect = ui::PageTransitionIsRedirect(transition);
  34
  35   return navigation_details;
  36 }
  37
  38 }  // namespace
  39
  40 // static
  41 web::WebState* InfoBarManagerImpl::WebStateFromInfoBar(
  42     infobars::InfoBar* infobar) {
  43   if (!infobar || !infobar->owner())
  44     return nullptr;
  45   return static_cast<InfoBarManagerImpl*>(infobar->owner())->web_state();
  46 }
  47
  48 InfoBarManagerImpl::InfoBarManagerImpl(web::WebState* web_state)
  49     : web::WebStateObserver(web_state) {
  50   DCHECK(web_state);
  51 }
  52
  53 InfoBarManagerImpl::~InfoBarManagerImpl() {
  54   ShutDown();
  55 }
  56
  57 int InfoBarManagerImpl::GetActiveEntryID() {
  58   web::NavigationItem* visible_item =
  59       web_state()->GetNavigationManager()->GetVisibleItem();
  60   return visible_item ? visible_item->GetUniqueID() : 0;
  61 }
  62
  63 scoped_ptr<infobars::InfoBar> InfoBarManagerImpl::CreateConfirmInfoBar(
  64     scoped_ptr<ConfirmInfoBarDelegate> delegate) {
  65   return ::CreateConfirmInfoBar(delegate.Pass());
  66 }
  67
  68 void InfoBarManagerImpl::NavigationItemCommitted(
  69     const web::LoadCommittedDetails& load_details) {
  70   OnNavigation(NavigationDetailsFromLoadCommittedDetails(load_details));
  71 }
  72
  73 void InfoBarManagerImpl::WebStateDestroyed() {
  74   // The WebState is going away; be aggressively paranoid and delete this
  75   // InfoBarManagerImpl lest other parts of the system attempt to add infobars
  76   // or use it otherwise during the destruction.
  77   web_state()->RemoveUserData(UserDataKey());
  78   // That was the equivalent of "delete this". This object is now destroyed;
  79   // returning from this function is the only safe thing to do.
  80 }