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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.
#ifndef CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_
#define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_
#include <vector>
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "content/public/browser/browser_plugin_guest_delegate.h"
#include "content/public/browser/web_contents_observer.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "third_party/blink/public/mojom/choosers/popup_menu.mojom.h"
namespace content {
class RenderFrameHostImpl;
class WebContentsImpl;
// A browser plugin guest provides functionality for WebContents to operate in
// the guest role.
//
// When a guest is initially created, it is in an unattached state. That is,
// it is not visible anywhere and has no embedder WebContents assigned.
// A BrowserPluginGuest is said to be "attached" if it has an embedder.
// A BrowserPluginGuest can also create a new unattached guest via
// CreateNewWindow. The newly created guest will live in the same partition,
// which means it can share storage and can script this guest.
//
// TODO(wjmaclean): Get rid of "BrowserPlugin" in the name of this class.
// Perhaps "InnerWebContentsGuestConnector"?
class BrowserPluginGuest : public WebContentsObserver {
public:
BrowserPluginGuest(const BrowserPluginGuest&) = delete;
BrowserPluginGuest& operator=(const BrowserPluginGuest&) = delete;
~BrowserPluginGuest() override;
// The WebContents passed into the factory method here has not been
// initialized yet and so it does not yet hold a SiteInstance.
// BrowserPluginGuest must be constructed and installed into a WebContents
// prior to its initialization because WebContents needs to determine what
// type of WebContentsView to construct on initialization. The content
// embedder needs to be aware of |guest_site_instance| on the guest's
// construction and so we pass it in here.
//
// After this, a new BrowserPluginGuest is created with ownership transferred
// into the |web_contents|.
static void CreateInWebContents(WebContentsImpl* web_contents,
BrowserPluginGuestDelegate* delegate);
// BrowserPluginGuest::Init is called after the associated guest WebContents
// initializes. This sets up the appropriate blink::RendererPreferences so
// that this guest can navigate and resize offscreen.
void Init();
// Creates a new guest WebContentsImpl with the provided |params| with |this|
// as the |opener|.
std::unique_ptr<WebContentsImpl> CreateNewGuestWindow(
const WebContents::CreateParams& params);
// WebContentsObserver implementation.
void DidStartNavigation(NavigationHandle* navigation_handle) override;
void DidFinishNavigation(NavigationHandle* navigation_handle) override;
void PrimaryMainFrameRenderProcessGone(
base::TerminationStatus status) override;
WebContentsImpl* GetWebContents() const;
RenderFrameHostImpl* GetProspectiveOuterDocument();
private:
// BrowserPluginGuest is a WebContentsObserver of |web_contents| and
// |web_contents| has to stay valid for the lifetime of BrowserPluginGuest.
BrowserPluginGuest(WebContentsImpl* web_contents,
BrowserPluginGuestDelegate* delegate);
void InitInternal(WebContentsImpl* owner_web_contents);
// May be null during guest destruction.
const base::WeakPtr<BrowserPluginGuestDelegate> delegate_;
};
} // namespace content
#endif // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_
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