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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/browser_process_platform_part_chromeos.h"
#include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
#include "chrome/browser/prefs/session_startup_pref.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_io_data.h"
#include "chrome/browser/sessions/session_restore.h"
#include "chrome/browser/sessions/session_service_utils.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_navigator.h"
#include "chrome/browser/ui/browser_navigator_params.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/startup/startup_browser_creator.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "components/custom_handlers/protocol_handler_registry.h"
#include "ui/base/page_transition_types.h"
#include "ui/base/window_open_disposition.h"
BrowserProcessPlatformPartChromeOS::BrowserProcessPlatformPartChromeOS()
: browser_restore_observer_(this) {}
BrowserProcessPlatformPartChromeOS::~BrowserProcessPlatformPartChromeOS() =
default;
bool BrowserProcessPlatformPartChromeOS::CanRestoreUrlsForProfile(
const Profile* profile) const {
return profile->IsRegularProfile();
}
BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::
BrowserRestoreObserver(
const BrowserProcessPlatformPartChromeOS* browser_process_platform_part)
: browser_process_platform_part_(browser_process_platform_part) {
BrowserList::AddObserver(this);
}
BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::
~BrowserRestoreObserver() {
BrowserList::RemoveObserver(this);
}
void BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::OnBrowserAdded(
Browser* browser) {
// If |browser| is the only browser, restores urls based on the on startup
// setting.
if (chrome::GetBrowserCount(browser->profile()) == 1 &&
ShouldRestoreUrls(browser)) {
if (ShouldOpenUrlsInNewBrowser(browser)) {
// Delay creating a new browser until |browser| is activated.
on_session_restored_callback_subscription_ =
SessionRestore::RegisterOnSessionRestoredCallback(base::BindRepeating(
&BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::
OnSessionRestoreDone,
base::Unretained(this)));
} else {
RestoreUrls(browser);
}
}
// If the startup urls from LAST_AND_URLS pref are already opened in a new
// browser, skip opening the same browser.
if (browser->creation_source() ==
Browser::CreationSource::kLastAndUrlsStartupPref) {
DCHECK(on_session_restored_callback_subscription_);
on_session_restored_callback_subscription_ = {};
}
}
void BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::
OnSessionRestoreDone(Profile* profile, int num_tabs_restored) {
// Ensure this callback to be called exactly once.
on_session_restored_callback_subscription_ = {};
// All browser windows are created. Open startup urls in a new browser.
auto create_params = Browser::CreateParams(profile, /*user_gesture*/ false);
Browser* browser = Browser::Create(create_params);
RestoreUrls(browser);
browser->window()->Show();
browser->window()->Activate();
}
bool BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::
ShouldRestoreUrls(Browser* browser) const {
Profile* profile = browser->profile();
// Only open urls for regular sign in users.
DCHECK(profile);
if (!browser_process_platform_part_->CanRestoreUrlsForProfile(profile))
return false;
// If during the restore process, or restore from a crash, don't launch urls.
// However, in case of LAST_AND_URLS startup setting, urls should be opened
// even when the restore session is in progress.
SessionStartupPref pref =
SessionStartupPref::GetStartupPref(browser->profile()->GetPrefs());
if ((SessionRestore::IsRestoring(profile) &&
pref.type != SessionStartupPref::LAST_AND_URLS) ||
HasPendingUncleanExit(profile)) {
return false;
}
// App windows should not be restored.
auto window_type = WindowTypeForBrowserType(browser->type());
if (window_type == sessions::SessionWindow::TYPE_APP ||
window_type == sessions::SessionWindow::TYPE_APP_POPUP) {
return false;
}
// If the browser is created by StartupBrowserCreator,
// StartupBrowserCreatorImpl::OpenTabsInBrowser can open tabs, so don't
// restore urls here.
if (browser->creation_source() == Browser::CreationSource::kStartupCreator)
return false;
// If the startup setting is not open urls, don't launch urls.
if (!pref.ShouldOpenUrls() || pref.urls.empty())
return false;
return true;
}
// If the startup setting is both the restore last session and the open urls,
// those should be opened in a new browser.
bool BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::
ShouldOpenUrlsInNewBrowser(Browser* browser) const {
SessionStartupPref pref =
SessionStartupPref::GetStartupPref(browser->profile()->GetPrefs());
return pref.type == SessionStartupPref::LAST_AND_URLS;
}
void BrowserProcessPlatformPartChromeOS::BrowserRestoreObserver::RestoreUrls(
Browser* browser) {
DCHECK(browser);
SessionStartupPref pref =
SessionStartupPref::GetStartupPref(browser->profile()->GetPrefs());
std::vector<GURL> urls;
for (const auto& url : pref.urls)
urls.push_back(url);
custom_handlers::ProtocolHandlerRegistry* registry =
ProtocolHandlerRegistryFactory::GetForBrowserContext(browser->profile());
for (const GURL& url : urls) {
// We skip URLs that we'd have to launch an external protocol handler for.
// This avoids us getting into an infinite loop asking ourselves to open
// a URL, should the handler be (incorrectly) configured to be us. Anyone
// asking us to open such a URL should really ask the handler directly.
bool handled_by_chrome =
ProfileIOData::IsHandledURL(url) ||
(registry && registry->IsHandledProtocol(url.scheme()));
if (!handled_by_chrome)
continue;
int add_types = AddTabTypes::ADD_NONE | AddTabTypes::ADD_FORCE_INDEX;
NavigateParams params(browser, url, ui::PAGE_TRANSITION_AUTO_TOPLEVEL);
params.disposition = WindowOpenDisposition::NEW_BACKGROUND_TAB;
params.tabstrip_add_types = add_types;
Navigate(¶ms);
}
}
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