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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/browser/api/guest_view/guest_view_internal_api.h"
#include <memory>
#include <utility>
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/token.h"
#include "components/guest_view/browser/guest_view_base.h"
#include "components/guest_view/browser/guest_view_manager.h"
#include "components/guest_view/browser/guest_view_manager_delegate.h"
#include "components/guest_view/common/guest_view_constants.h"
#include "content/public/browser/render_process_host.h"
#include "extensions/browser/api/extensions_api_client.h"
#include "extensions/common/api/guest_view_internal.h"
using guest_view::GuestViewBase;
using guest_view::GuestViewManager;
using guest_view::GuestViewManagerDelegate;
namespace guest_view_internal = extensions::api::guest_view_internal;
namespace extensions {
GuestViewInternalCreateGuestFunction::GuestViewInternalCreateGuestFunction() =
default;
GuestViewInternalCreateGuestFunction::~GuestViewInternalCreateGuestFunction() =
default;
ExtensionFunction::ResponseAction GuestViewInternalCreateGuestFunction::Run() {
std::optional<guest_view_internal::CreateGuest::Params> params =
guest_view_internal::CreateGuest::Params::Create(args());
EXTENSION_FUNCTION_VALIDATE(params);
// Since we are creating a new guest, we will create a GuestViewManager
// if we don't already have one.
GuestViewManager* guest_view_manager =
GuestViewManager::FromBrowserContext(browser_context());
if (!guest_view_manager) {
guest_view_manager = GuestViewManager::CreateWithDelegate(
browser_context(),
ExtensionsAPIClient::Get()->CreateGuestViewManagerDelegate());
}
if (!render_frame_host()) {
return RespondNow(Error("Guest views can only be embedded in web content"));
}
// The renderer identifies the window which owns the guest view element. We
// consider this the most likely owner for the guest view. It is possible,
// however, for the guest to be embedded in another same-process frame upon
// attachment.
const int sender_process_id =
render_frame_host()->GetProcess()->GetDeprecatedID();
content::RenderFrameHost* owner_rfh = nullptr;
auto token = base::Token::FromString(params->owner_frame_token);
if (token) {
auto unguessable_token =
base::UnguessableToken::Deserialize(token->high(), token->low());
if (unguessable_token) {
owner_rfh = content::RenderFrameHost::FromFrameToken(
content::GlobalRenderFrameHostToken(
sender_process_id,
blink::LocalFrameToken(unguessable_token.value())));
}
}
if (!owner_rfh) {
// If the renderer can't determine the owner at creation, fall back to
// assuming the main frame.
owner_rfh = render_frame_host()->GetMainFrame();
}
auto callback = base::BindOnce(
&GuestViewInternalCreateGuestFunction::CreateGuestCallback, this);
// Add flag to |create_params| to indicate that the element size is specified
// in logical units.
base::Value::Dict& create_params =
params->create_params.additional_properties;
create_params.Set(guest_view::kElementSizeIsLogical, true);
guest_view_manager->CreateGuest(params->view_type, owner_rfh, create_params,
std::move(callback));
return did_respond() ? AlreadyResponded() : RespondLater();
}
void GuestViewInternalCreateGuestFunction::CreateGuestCallback(
guest_view::GuestViewBase* guest) {
const int guest_instance_id =
guest ? guest->guest_instance_id() : guest_view::kInstanceIDNone;
Respond(WithArguments(guest_instance_id));
}
GuestViewInternalDestroyUnattachedGuestFunction::
GuestViewInternalDestroyUnattachedGuestFunction() = default;
GuestViewInternalDestroyUnattachedGuestFunction::
~GuestViewInternalDestroyUnattachedGuestFunction() = default;
ExtensionFunction::ResponseAction
GuestViewInternalDestroyUnattachedGuestFunction::Run() {
std::optional<guest_view_internal::DestroyUnattachedGuest::Params> params =
guest_view_internal::DestroyUnattachedGuest::Params::Create(args());
EXTENSION_FUNCTION_VALIDATE(params);
GuestViewBase* guest =
GuestViewBase::FromInstanceID(source_process_id(), params->instance_id);
if (guest) {
std::unique_ptr<GuestViewBase> owned_guest =
guest->GetGuestViewManager()->TransferOwnership(guest);
owned_guest.reset();
}
return RespondNow(NoArguments());
}
GuestViewInternalSetSizeFunction::GuestViewInternalSetSizeFunction() = default;
GuestViewInternalSetSizeFunction::~GuestViewInternalSetSizeFunction() = default;
ExtensionFunction::ResponseAction GuestViewInternalSetSizeFunction::Run() {
std::optional<guest_view_internal::SetSize::Params> params =
guest_view_internal::SetSize::Params::Create(args());
EXTENSION_FUNCTION_VALIDATE(params);
GuestViewBase* guest =
GuestViewBase::FromInstanceID(source_process_id(), params->instance_id);
if (!guest) {
return RespondNow(Error(kUnknownErrorDoNotUse));
}
guest_view::SetSizeParams set_size_params;
if (params->params.enable_auto_size) {
set_size_params.enable_auto_size = params->params.enable_auto_size;
}
if (params->params.min) {
set_size_params.min_size.emplace(params->params.min->width,
params->params.min->height);
}
if (params->params.max) {
set_size_params.max_size.emplace(params->params.max->width,
params->params.max->height);
}
if (params->params.normal) {
set_size_params.normal_size.emplace(params->params.normal->width,
params->params.normal->height);
}
guest->SetSize(set_size_params);
return RespondNow(NoArguments());
}
} // namespace extensions
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