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// Copyright (c) 2012 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 CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_
#define CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_
#pragma once
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/common/content_export.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/site_instance.h"
#include "googleurl/src/gurl.h"
namespace content {
class RenderProcessHostFactory;
}
class CONTENT_EXPORT SiteInstanceImpl : public content::SiteInstance,
public content::NotificationObserver {
public:
// content::SiteInstance interface overrides.
virtual int32 GetId() OVERRIDE;
virtual bool HasProcess() const OVERRIDE;
virtual content::RenderProcessHost* GetProcess() OVERRIDE;
virtual const GURL& GetSite() const OVERRIDE;
virtual SiteInstance* GetRelatedSiteInstance(const GURL& url) OVERRIDE;
virtual bool IsRelatedSiteInstance(const SiteInstance* instance) OVERRIDE;
virtual content::BrowserContext* GetBrowserContext() const OVERRIDE;
// Set the web site that this SiteInstance is rendering pages for.
// This includes the scheme and registered domain, but not the port. If the
// URL does not have a valid registered domain, then the full hostname is
// stored.
void SetSite(const GURL& url);
bool HasSite() const;
// Returns whether there is currently a related SiteInstance (registered with
// BrowsingInstance) for the site of the given url. If so, we should try to
// avoid dedicating an unused SiteInstance to it (e.g., in a new tab).
bool HasRelatedSiteInstance(const GURL& url);
// Returns whether this SiteInstance has a process that is the wrong type for
// the given URL. If so, the browser should force a process swap when
// navigating to the URL.
bool HasWrongProcessForURL(const GURL& url) const;
// Sets the factory used to create new RenderProcessHosts. This will also be
// passed on to SiteInstances spawned by this one.
// The factory must outlive the SiteInstance; ownership is not transferred. It
// may be NULL, in which case the default BrowserRenderProcessHost will be
// created (this is the behavior if you don't call this function).
void set_render_process_host_factory(
content::RenderProcessHostFactory* rph_factory) {
render_process_host_factory_ = rph_factory;
}
// Returns the site for the given URL, which includes only the scheme and
// registered domain. Returns an empty GURL if the URL has no host.
static GURL GetSiteForURL(content::BrowserContext* context, const GURL& url);
protected:
friend class BrowsingInstance;
friend class content::SiteInstance;
// Virtual to allow tests to extend it.
virtual ~SiteInstanceImpl();
// Create a new SiteInstance. Protected to give access to BrowsingInstance
// and tests; most callers should use Create or GetRelatedSiteInstance
// instead.
explicit SiteInstanceImpl(BrowsingInstance* browsing_instance);
private:
// Get the effective URL for the given actual URL.
static GURL GetEffectiveURL(content::BrowserContext* browser_context,
const GURL& url);
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Used to restrict a process' origin access rights.
void LockToOrigin();
// The next available SiteInstance ID.
static int32 next_site_instance_id_;
// A unique ID for this SiteInstance.
int32 id_;
content::NotificationRegistrar registrar_;
// BrowsingInstance to which this SiteInstance belongs.
scoped_refptr<BrowsingInstance> browsing_instance_;
// Factory for new RenderProcessHosts, not owned by this class. NULL indiactes
// that the default BrowserRenderProcessHost should be created.
const content::RenderProcessHostFactory* render_process_host_factory_;
// Current RenderProcessHost that is rendering pages for this SiteInstance.
// This pointer will only change once the RenderProcessHost is destructed. It
// will still remain the same even if the process crashes, since in that
// scenario the RenderProcessHost remains the same.
content::RenderProcessHost* process_;
// The web site that this SiteInstance is rendering pages for.
GURL site_;
// Whether SetSite has been called.
bool has_site_;
DISALLOW_COPY_AND_ASSIGN(SiteInstanceImpl);
};
#endif // CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_
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