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// Copyright (c) 2012 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/google/google_url_tracker_navigation_helper_impl.h"
#include "chrome/browser/google/google_url_tracker.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/common/chrome_notification_types.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/web_contents.h"
GoogleURLTrackerNavigationHelperImpl::
GoogleURLTrackerNavigationHelperImpl() : tracker_(NULL) {
}
GoogleURLTrackerNavigationHelperImpl::
~GoogleURLTrackerNavigationHelperImpl() {
}
void GoogleURLTrackerNavigationHelperImpl::SetGoogleURLTracker(
GoogleURLTracker* tracker) {
DCHECK(tracker);
tracker_ = tracker;
}
void GoogleURLTrackerNavigationHelperImpl::SetListeningForNavigationStart(
bool listen) {
if (listen) {
registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
content::NotificationService::AllBrowserContextsAndSources());
registrar_.Add(this, chrome::NOTIFICATION_INSTANT_COMMITTED,
content::NotificationService::AllBrowserContextsAndSources());
} else {
registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
content::NotificationService::AllBrowserContextsAndSources());
registrar_.Remove(this, chrome::NOTIFICATION_INSTANT_COMMITTED,
content::NotificationService::AllBrowserContextsAndSources());
}
}
bool GoogleURLTrackerNavigationHelperImpl::IsListeningForNavigationStart() {
return registrar_.IsRegistered(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
content::NotificationService::AllBrowserContextsAndSources());
}
void GoogleURLTrackerNavigationHelperImpl::SetListeningForNavigationCommit(
const content::NavigationController* nav_controller,
bool listen) {
content::NotificationSource navigation_controller_source =
content::Source<content::NavigationController>(nav_controller);
if (listen) {
registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
navigation_controller_source);
} else {
registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
navigation_controller_source);
}
}
bool GoogleURLTrackerNavigationHelperImpl::IsListeningForNavigationCommit(
const content::NavigationController* nav_controller) {
content::NotificationSource navigation_controller_source =
content::Source<content::NavigationController>(nav_controller);
return registrar_.IsRegistered(
this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
navigation_controller_source);
}
void GoogleURLTrackerNavigationHelperImpl::SetListeningForTabDestruction(
const content::NavigationController* nav_controller,
bool listen) {
content::NotificationSource navigation_controller_source =
content::Source<content::NavigationController>(nav_controller);
if (listen) {
registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
GetWebContentsSource(navigation_controller_source));
} else {
registrar_.Remove(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
GetWebContentsSource(navigation_controller_source));
}
}
bool GoogleURLTrackerNavigationHelperImpl::IsListeningForTabDestruction(
const content::NavigationController* nav_controller) {
content::NotificationSource navigation_controller_source =
content::Source<content::NavigationController>(nav_controller);
return registrar_.IsRegistered(
this,
content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
GetWebContentsSource(navigation_controller_source));
}
content::NotificationSource
GoogleURLTrackerNavigationHelperImpl::GetWebContentsSource(
const content::NotificationSource& nav_controller_source) {
content::NavigationController* controller =
content::Source<content::NavigationController>(
nav_controller_source).ptr();
content::WebContents* web_contents = controller->GetWebContents();
return content::Source<content::WebContents>(web_contents);
}
void GoogleURLTrackerNavigationHelperImpl::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case content::NOTIFICATION_NAV_ENTRY_PENDING: {
content::NavigationController* controller =
content::Source<content::NavigationController>(source).ptr();
content::WebContents* web_contents = controller->GetWebContents();
InfoBarService* infobar_service =
InfoBarService::FromWebContents(web_contents);
// Because we're listening to all sources, there may be no
// InfoBarService for some notifications, e.g. navigations in
// bubbles/balloons etc.
if (infobar_service) {
tracker_->OnNavigationPending(
controller, infobar_service,
controller->GetPendingEntry()->GetUniqueID());
}
break;
}
case content::NOTIFICATION_NAV_ENTRY_COMMITTED: {
content::NavigationController* controller =
content::Source<content::NavigationController>(source).ptr();
// Here we're only listening to notifications where we already know
// there's an associated InfoBarService.
content::WebContents* web_contents = controller->GetWebContents();
InfoBarService* infobar_service =
InfoBarService::FromWebContents(web_contents);
DCHECK(infobar_service);
const GURL& search_url = controller->GetActiveEntry()->GetURL();
if (!search_url.is_valid()) // Not clear if this can happen.
tracker_->OnTabClosed(controller);
tracker_->OnNavigationCommitted(infobar_service, search_url);
break;
}
case content::NOTIFICATION_WEB_CONTENTS_DESTROYED: {
content::WebContents* web_contents =
content::Source<content::WebContents>(source).ptr();
tracker_->OnTabClosed(&web_contents->GetController());
break;
}
case chrome::NOTIFICATION_INSTANT_COMMITTED: {
content::WebContents* web_contents =
content::Source<content::WebContents>(source).ptr();
content::NavigationController* nav_controller =
&web_contents->GetController();
const GURL& search_url = web_contents->GetURL();
if (!search_url.is_valid()) // Not clear if this can happen.
tracker_->OnTabClosed(nav_controller);
OnInstantCommitted(nav_controller,
InfoBarService::FromWebContents(web_contents),
search_url);
break;
}
default:
NOTREACHED() << "Unknown notification received:" << type;
}
}
void GoogleURLTrackerNavigationHelperImpl::OnInstantCommitted(
content::NavigationController* nav_controller,
InfoBarService* infobar_service,
const GURL& search_url) {
// Call OnNavigationPending, giving |tracker_| the option to register for
// navigation commit messages for this navigation controller. If it does
// register for them, simulate the commit as well.
tracker_->OnNavigationPending(nav_controller, infobar_service, 0);
if (IsListeningForNavigationCommit(nav_controller))
tracker_->OnNavigationCommitted(infobar_service, search_url);
}
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