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// Copyright 2015 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.
#ifndef EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSIONS_GUEST_VIEW_MESSAGE_FILTER_H_
#define EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSIONS_GUEST_VIEW_MESSAGE_FILTER_H_
#include <stdint.h>
#include <map>
#include <string>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "components/guest_view/browser/guest_view_message_filter.h"
#include "content/public/browser/browser_associated_interface.h"
#include "content/public/browser/browser_message_filter.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/common/mojo/guest_view.mojom.h"
namespace content {
class BrowserContext;
class NavigationHandle;
class NavigationThrottle;
class RenderFrameHost;
class WebContents;
}
namespace gfx {
class Size;
}
namespace guest_view {
class GuestViewManager;
}
namespace extensions {
class MimeHandlerViewGuest;
// This class filters out incoming extensions GuestView-specific IPC messages
// from thw renderer process. It is created on the UI thread. Messages may be
// handled on the IO thread or the UI thread.
class ExtensionsGuestViewMessageFilter
: public guest_view::GuestViewMessageFilter,
public content::BrowserAssociatedInterface<mojom::GuestView>,
public mojom::GuestView {
public:
// During attaching guest to embedder WebContentses the corresponding plugin
// frame might be navigated to "about:blank" first. During this time all
// navigations for the same FrameTreeNode must be canceled.
static std::unique_ptr<content::NavigationThrottle> MaybeCreateThrottle(
content::NavigationHandle* navigation_handle);
ExtensionsGuestViewMessageFilter(int render_process_id,
content::BrowserContext* context);
private:
class FrameNavigationHelper;
friend class content::BrowserThread;
friend class base::DeleteHelper<ExtensionsGuestViewMessageFilter>;
friend class ExtensionsGuestViewMessageFilter::FrameNavigationHelper;
~ExtensionsGuestViewMessageFilter() override;
// GuestViewMessageFilter implementation.
void OverrideThreadForMessage(const IPC::Message& message,
content::BrowserThread::ID* thread) override;
bool OnMessageReceived(const IPC::Message& message) override;
guest_view::GuestViewManager* GetOrCreateGuestViewManager() override;
// Message handlers on the UI thread.
void OnCanExecuteContentScript(int render_view_id,
int script_id,
bool* allowed);
void OnCreateMimeHandlerViewGuest(int render_frame_id,
const std::string& view_id,
int element_instance_id,
const gfx::Size& element_size);
void OnResizeGuest(int render_frame_id,
int element_instance_id,
const gfx::Size& new_size);
// mojom::GuestView implementation.
void CreateEmbeddedMimeHandlerViewGuest(
int32_t render_frame_id,
int32_t tab_id,
const GURL& original_url,
int32_t element_instance_id,
const gfx::Size& element_size,
content::mojom::TransferrableURLLoaderPtr transferrable_url_loader,
int32_t plugin_frame_routing_id) override;
void CreateMimeHandlerViewGuest(
int32_t render_frame_id,
const std::string& view_id,
int32_t element_instance_id,
const gfx::Size& element_size,
mime_handler::BeforeUnloadControlPtr before_unload_control,
int32_t plugin_frame_routing_id) override;
void CreateMimeHandlerViewGuestOnUIThread(
int32_t render_frame_id,
const std::string& view_id,
int32_t element_instance_id,
const gfx::Size& element_size,
mime_handler::BeforeUnloadControlPtrInfo before_unload_control,
int32_t plugin_frame_routing_id,
bool is_full_page_plugin);
// Runs on UI thread.
void MimeHandlerViewGuestCreatedCallback(
int element_instance_id,
int embedder_render_process_id,
int embedder_render_frame_id,
int32_t plugin_frame_routing_id,
const gfx::Size& element_size,
mime_handler::BeforeUnloadControlPtrInfo before_unload_control,
bool is_full_page_plugin,
content::WebContents* web_contents);
// Called by a FrameNavigationHelper on UI thread to notify the message filter
// whether or not it should proceed with attaching a guest. if |plugin_rfh| is
// nullptr, the MimeHandlerViewGuest associated with |element_instance_id|
// will be destroyed and deleted.
void ResumeAttachOrDestroy(int32_t element_instance_id,
content::RenderFrameHost* plugin_rfh);
std::map<int32_t, std::unique_ptr<FrameNavigationHelper>>
frame_navigation_helpers_;
static const uint32_t kFilteredMessageClasses[];
DISALLOW_COPY_AND_ASSIGN(ExtensionsGuestViewMessageFilter);
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSIONS_GUEST_VIEW_MESSAGE_FILTER_H_