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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/picture_in_picture/document_picture_in_picture_navigation_throttle.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/web_contents.h"
#include "media/base/media_switches.h"
namespace content {
// static
std::unique_ptr<DocumentPictureInPictureNavigationThrottle>
DocumentPictureInPictureNavigationThrottle::MaybeCreateThrottleFor(
NavigationHandle* handle) {
// We prevent the main frame of document picture-in-picture windows from doing
// cross-document navigation.
if (!handle->IsInMainFrame() || handle->IsSameDocument() ||
!handle->GetWebContents() ||
!handle->GetWebContents()->GetPictureInPictureOptions().has_value()) {
return nullptr;
}
// Allow a command-line flag to opt-out of navigation throttling.
if (base::FeatureList::IsEnabled(
media::kDocumentPictureInPictureNavigation)) {
return nullptr;
}
return std::make_unique<DocumentPictureInPictureNavigationThrottle>(
base::PassKey<DocumentPictureInPictureNavigationThrottle>(), handle);
}
DocumentPictureInPictureNavigationThrottle::
DocumentPictureInPictureNavigationThrottle(
base::PassKey<DocumentPictureInPictureNavigationThrottle>,
NavigationHandle* handle)
: NavigationThrottle(handle) {}
DocumentPictureInPictureNavigationThrottle::
~DocumentPictureInPictureNavigationThrottle() = default;
NavigationThrottle::ThrottleCheckResult
DocumentPictureInPictureNavigationThrottle::WillStartRequest() {
return ClosePiPWindowAndCancelNavigation();
}
NavigationThrottle::ThrottleCheckResult
DocumentPictureInPictureNavigationThrottle::WillCommitWithoutUrlLoader() {
return ClosePiPWindowAndCancelNavigation();
}
const char* DocumentPictureInPictureNavigationThrottle::GetNameForLogging() {
return "DocumentPictureInPictureNavigationThrottle";
}
NavigationThrottle::ThrottleCheckResult
DocumentPictureInPictureNavigationThrottle::
ClosePiPWindowAndCancelNavigation() {
// We are not allowed to synchronously close the WebContents here, so we must
// do it asynchronously.
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&WebContents::ClosePage,
navigation_handle()->GetWebContents()->GetWeakPtr()));
return CANCEL_AND_IGNORE;
}
} // namespace content
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