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// Copyright 2012 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/background/background_contents.h"
#include <utility>
#include "chrome/browser/background/background_contents_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/task_manager/web_contents_tags.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/session_storage_namespace.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_host_delegate.h"
#include "extensions/browser/extension_host_queue.h"
#include "extensions/browser/extensions_browser_client.h"
#include "extensions/browser/view_type_utils.h"
#include "extensions/common/mojom/view_type.mojom.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "ui/gfx/geometry/rect.h"
using content::SiteInstance;
using content::WebContents;
BackgroundContents::BackgroundContents(
scoped_refptr<SiteInstance> site_instance,
content::RenderFrameHost* opener,
bool is_new_browsing_instance,
Delegate* delegate,
const content::StoragePartitionConfig& partition_config,
content::SessionStorageNamespace* session_storage_namespace)
: delegate_(delegate),
extension_host_delegate_(extensions::ExtensionsBrowserClient::Get()
->CreateExtensionHostDelegate()) {
profile_ = Profile::FromBrowserContext(
site_instance->GetBrowserContext());
WebContents::CreateParams create_params(profile_, std::move(site_instance));
create_params.is_never_composited = true;
create_params.opener_render_process_id =
opener ? opener->GetProcess()->GetDeprecatedID() : MSG_ROUTING_NONE;
create_params.opener_render_frame_id =
opener ? opener->GetRoutingID() : MSG_ROUTING_NONE;
if (session_storage_namespace) {
content::SessionStorageNamespaceMap session_storage_namespace_map;
session_storage_namespace_map.insert(
std::make_pair(partition_config, session_storage_namespace));
web_contents_ = WebContents::CreateWithSessionStorage(
create_params, session_storage_namespace_map);
} else {
web_contents_ = WebContents::Create(create_params);
}
web_contents_->SetOwnerLocationForDebug(FROM_HERE);
extensions::SetViewType(web_contents_.get(),
extensions::mojom::ViewType::kBackgroundContents);
web_contents_->SetDelegate(this);
content::WebContentsObserver::Observe(web_contents_.get());
// Add the TaskManager-specific tag for the BackgroundContents.
task_manager::WebContentsTags::CreateForBackgroundContents(
web_contents_.get(), this);
}
// Exposed to allow creating mocks.
BackgroundContents::BackgroundContents() = default;
BackgroundContents::~BackgroundContents() {
if (!web_contents_.get()) // Will be null for unit tests.
return;
extensions::ExtensionHostQueue::GetInstance().Remove(this);
}
const GURL& BackgroundContents::GetURL() const {
return web_contents_.get() ? web_contents_->GetURL() : GURL::EmptyGURL();
}
void BackgroundContents::CreateRendererSoon(const GURL& url) {
initial_url_ = url;
extensions::ExtensionHostQueue::GetInstance().Add(this);
}
void BackgroundContents::CloseContents(WebContents* source) {
delegate_->OnBackgroundContentsClosed(this);
// |this| is deleted.
}
bool BackgroundContents::ShouldSuppressDialogs(WebContents* source) {
return true;
}
void BackgroundContents::PrimaryPageChanged(content::Page& page) {
// Note: because BackgroundContents are only available to extension apps,
// navigation is limited to urls within the app's extent. This is enforced in
// RenderView::decidePolicyForNavigation. If BackgroundContents become
// available as a part of the web platform, it probably makes sense to have
// some way to scope navigation of a background page to its opener's security
// origin. Note: if the first navigation is to a URL outside the app's
// extent a background page will be opened but will remain at about:blank.
delegate_->OnBackgroundContentsNavigated(this);
}
// Forward requests to add a new WebContents to our delegate.
WebContents* BackgroundContents::AddNewContents(
WebContents* source,
std::unique_ptr<WebContents> new_contents,
const GURL& target_url,
WindowOpenDisposition disposition,
const blink::mojom::WindowFeatures& window_features,
bool user_gesture,
bool* was_blocked) {
delegate_->AddWebContents(std::move(new_contents), target_url, disposition,
window_features, was_blocked);
return nullptr;
}
void BackgroundContents::PrimaryMainFrameRenderProcessGone(
base::TerminationStatus status) {
delegate_->OnBackgroundContentsTerminated(this);
// |this| is deleted.
}
void BackgroundContents::CreateRendererNow() {
base::WeakPtr<content::NavigationHandle> handle =
web_contents()->GetController().LoadURL(initial_url_, content::Referrer(),
ui::PAGE_TRANSITION_LINK,
std::string());
if (handle) {
ukm::builders::Extensions_BackgroundContentsCreated(
handle->GetNextPageUkmSourceId())
.SetSeen(true)
.Record(ukm::UkmRecorder::Get());
}
}
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