| // 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_ |
| |
| #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 "url/gurl.h" |
| |
| namespace content { |
| class RenderProcessHostFactory; |
| |
| class CONTENT_EXPORT SiteInstanceImpl : public SiteInstance, |
| public NotificationObserver { |
| public: |
| // SiteInstance interface overrides. |
| virtual int32 GetId() OVERRIDE; |
| virtual bool HasProcess() const OVERRIDE; |
| virtual RenderProcessHost* GetProcess() OVERRIDE; |
| virtual const GURL& GetSiteURL() const OVERRIDE; |
| virtual SiteInstance* GetRelatedSiteInstance(const GURL& url) OVERRIDE; |
| virtual bool IsRelatedSiteInstance(const SiteInstance* instance) OVERRIDE; |
| virtual 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); |
| |
| // Increase the number of active views in this SiteInstance. This is |
| // increased when a view is created, or a currently swapped out view |
| // is swapped in. |
| void increment_active_view_count() { active_view_count_++; } |
| |
| // Decrease the number of active views in this SiteInstance. This is |
| // decreased when a view is destroyed, or a currently active view is |
| // swapped out. |
| void decrement_active_view_count() { active_view_count_--; } |
| |
| // Get the number of active views which belong to this |
| // SiteInstance. If there is no active view left in this |
| // SiteInstance, all view in this SiteInstance can be safely |
| // discarded to save memory. |
| size_t active_view_count() { return active_view_count_; } |
| |
| // Sets the global factory used to create new RenderProcessHosts. It may be |
| // NULL, in which case the default BrowserRenderProcessHost will be created |
| // (this is the behavior if you don't call this function). The factory must |
| // be set back to NULL before it's destroyed; ownership is not transferred. |
| static void set_render_process_host_factory( |
| const RenderProcessHostFactory* rph_factory); |
| |
| protected: |
| friend class BrowsingInstance; |
| friend class 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(BrowserContext* browser_context, |
| const GURL& url); |
| |
| // NotificationObserver implementation. |
| virtual void Observe(int type, |
| const NotificationSource& source, |
| const NotificationDetails& details) OVERRIDE; |
| |
| // Used to restrict a process' origin access rights. |
| void LockToOrigin(); |
| |
| // An object used to construct RenderProcessHosts. |
| static const RenderProcessHostFactory* g_render_process_host_factory_; |
| |
| // The next available SiteInstance ID. |
| static int32 next_site_instance_id_; |
| |
| // A unique ID for this SiteInstance. |
| int32 id_; |
| |
| // The number of active views under this SiteInstance. |
| size_t active_view_count_; |
| |
| 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 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. |
| 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); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SITE_INSTANCE_IMPL_H_ |