Index: mojo/services/view_manager/view_manager_service_impl.h |
diff --git a/mojo/services/view_manager/view_manager_service_impl.h b/mojo/services/view_manager/view_manager_service_impl.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..bf156c33925c47bb2010bef9cdf1b823c49a4bc6 |
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+++ b/mojo/services/view_manager/view_manager_service_impl.h |
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+// Copyright 2014 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 SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ |
+#define SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ |
+ |
+#include <set> |
+#include <string> |
+#include <vector> |
+ |
+#include "base/basictypes.h" |
+#include "base/containers/hash_tables.h" |
+#include "base/memory/scoped_ptr.h" |
+#include "mojo/services/view_manager/access_policy_delegate.h" |
+#include "mojo/services/view_manager/ids.h" |
+#include "third_party/mojo_services/src/surfaces/public/interfaces/surface_id.mojom.h" |
+#include "third_party/mojo_services/src/view_manager/public/interfaces/view_manager.mojom.h" |
+ |
+namespace gfx { |
+class Rect; |
+} |
+ |
+namespace view_manager { |
+ |
+class AccessPolicy; |
+class ConnectionManager; |
+class ServerView; |
+ |
+// An instance of ViewManagerServiceImpl is created for every ViewManagerService |
+// request. ViewManagerServiceImpl tracks all the state and views created by a |
+// client. ViewManagerServiceImpl coordinates with ConnectionManager to update |
+// the client (and internal state) as necessary. |
+class ViewManagerServiceImpl : public mojo::ViewManagerService, |
+ public AccessPolicyDelegate { |
+ public: |
+ using ViewIdSet = base::hash_set<mojo::Id>; |
+ |
+ ViewManagerServiceImpl(ConnectionManager* connection_manager, |
+ mojo::ConnectionSpecificId creator_id, |
+ const std::string& creator_url, |
+ const std::string& url, |
+ const ViewId& root_id); |
+ ~ViewManagerServiceImpl() override; |
+ |
+ // |services| and |exposed_services| are the ServiceProviders to pass to the |
+ // client via OnEmbed(). |
+ void Init(mojo::ViewManagerClient* client, |
+ mojo::ViewManagerServicePtr service_ptr, |
+ mojo::InterfaceRequest<mojo::ServiceProvider> services, |
+ mojo::ServiceProviderPtr exposed_services); |
+ |
+ mojo::ConnectionSpecificId id() const { return id_; } |
+ mojo::ConnectionSpecificId creator_id() const { return creator_id_; } |
+ const std::string& url() const { return url_; } |
+ |
+ mojo::ViewManagerClient* client() { return client_; } |
+ |
+ // Returns the View with the specified id. |
+ ServerView* GetView(const ViewId& id) { |
+ return const_cast<ServerView*>( |
+ const_cast<const ViewManagerServiceImpl*>(this)->GetView(id)); |
+ } |
+ const ServerView* GetView(const ViewId& id) const; |
+ |
+ // Returns true if this connection's root is |id|. |
+ bool IsRoot(const ViewId& id) const; |
+ |
+ // Returns the id of the root node. This is null if the root has been |
+ // destroyed but the connection is still valid. |
+ const ViewId* root() const { return root_.get(); } |
+ |
+ // Invoked when a connection is about to be destroyed. |
+ void OnWillDestroyViewManagerServiceImpl(ViewManagerServiceImpl* connection); |
+ |
+ // These functions are synchronous variants of those defined in the mojom. The |
+ // ViewManagerService implementations all call into these. See the mojom for |
+ // details. |
+ mojo::ErrorCode CreateView(const ViewId& view_id); |
+ bool AddView(const ViewId& parent_id, const ViewId& child_id); |
+ std::vector<const ServerView*> GetViewTree(const ViewId& view_id) const; |
+ bool SetViewVisibility(const ViewId& view_id, bool visible); |
+ bool EmbedUrl(const std::string& url, |
+ const ViewId& view_id, |
+ mojo::InterfaceRequest<mojo::ServiceProvider> services, |
+ mojo::ServiceProviderPtr exposed_services); |
+ bool Embed(const ViewId& view_id, mojo::ViewManagerClientPtr client); |
+ |
+ // The following methods are invoked after the corresponding change has been |
+ // processed. They do the appropriate bookkeeping and update the client as |
+ // necessary. |
+ void ProcessViewBoundsChanged(const ServerView* view, |
+ const gfx::Rect& old_bounds, |
+ const gfx::Rect& new_bounds, |
+ bool originated_change); |
+ void ProcessViewportMetricsChanged(const mojo::ViewportMetrics& old_metrics, |
+ const mojo::ViewportMetrics& new_metrics, |
+ bool originated_change); |
+ void ProcessWillChangeViewHierarchy(const ServerView* view, |
+ const ServerView* new_parent, |
+ const ServerView* old_parent, |
+ bool originated_change); |
+ void ProcessViewPropertyChanged(const ServerView* view, |
+ const std::string& name, |
+ const std::vector<uint8_t>* new_data, |
+ bool originated_change); |
+ void ProcessViewHierarchyChanged(const ServerView* view, |
+ const ServerView* new_parent, |
+ const ServerView* old_parent, |
+ bool originated_change); |
+ void ProcessViewReorder(const ServerView* view, |
+ const ServerView* relative_view, |
+ mojo::OrderDirection direction, |
+ bool originated_change); |
+ void ProcessViewDeleted(const ViewId& view, bool originated_change); |
+ void ProcessWillChangeViewVisibility(const ServerView* view, |
+ bool originated_change); |
+ void ProcessViewPropertiesChanged(const ServerView* view, |
+ bool originated_change); |
+ |
+ private: |
+ typedef std::map<mojo::ConnectionSpecificId, ServerView*> ViewMap; |
+ |
+ bool IsViewKnown(const ServerView* view) const; |
+ |
+ // These functions return true if the corresponding mojom function is allowed |
+ // for this connection. |
+ bool CanReorderView(const ServerView* view, |
+ const ServerView* relative_view, |
+ mojo::OrderDirection direction) const; |
+ |
+ // Deletes a view owned by this connection. Returns true on success. |source| |
+ // is the connection that originated the change. |
+ bool DeleteViewImpl(ViewManagerServiceImpl* source, ServerView* view); |
+ |
+ // If |view| is known (in |known_views_|) does nothing. Otherwise adds |view| |
+ // to |views|, marks |view| as known and recurses. |
+ void GetUnknownViewsFrom(const ServerView* view, |
+ std::vector<const ServerView*>* views); |
+ |
+ // Removes |view| and all its descendants from |known_views_|. This does not |
+ // recurse through views that were created by this connection. All views owned |
+ // by this connection are added to |local_views|. |
+ void RemoveFromKnown(const ServerView* view, |
+ std::vector<ServerView*>* local_views); |
+ |
+ // Resets the root of this connection. |
+ void RemoveRoot(); |
+ |
+ void RemoveChildrenAsPartOfEmbed(const ViewId& view_id); |
+ |
+ // Converts View(s) to ViewData(s) for transport. This assumes all the views |
+ // are valid for the client. The parent of views the client is not allowed to |
+ // see are set to NULL (in the returned ViewData(s)). |
+ mojo::Array<mojo::ViewDataPtr> ViewsToViewDatas( |
+ const std::vector<const ServerView*>& views); |
+ mojo::ViewDataPtr ViewToViewData(const ServerView* view); |
+ |
+ // Implementation of GetViewTree(). Adds |view| to |views| and recurses if |
+ // CanDescendIntoViewForViewTree() returns true. |
+ void GetViewTreeImpl(const ServerView* view, |
+ std::vector<const ServerView*>* views) const; |
+ |
+ // Notify the client if the drawn state of any of the roots changes. |
+ // |view| is the view that is changing to the drawn state |new_drawn_value|. |
+ void NotifyDrawnStateChanged(const ServerView* view, bool new_drawn_value); |
+ |
+ // Deletes all Views we own. |
+ void DestroyViews(); |
+ |
+ bool PrepareForEmbed(const ViewId& view_id); |
+ |
+ // ViewManagerService: |
+ void CreateView( |
+ mojo::Id transport_view_id, |
+ const mojo::Callback<void(mojo::ErrorCode)>& callback) override; |
+ void DeleteView(mojo::Id transport_view_id, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void AddView(mojo::Id parent_id, |
+ mojo::Id child_id, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void RemoveViewFromParent( |
+ mojo::Id view_id, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void ReorderView(mojo::Id view_id, |
+ mojo::Id relative_view_id, |
+ mojo::OrderDirection direction, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void GetViewTree(mojo::Id view_id, |
+ const mojo::Callback<void(mojo::Array<mojo::ViewDataPtr>)>& |
+ callback) override; |
+ void SetViewSurfaceId(mojo::Id view_id, |
+ mojo::SurfaceIdPtr surface_id, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void SetViewBounds(mojo::Id view_id, |
+ mojo::RectPtr bounds, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void SetViewVisibility(mojo::Id view_id, |
+ bool visible, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void SetViewProperty(mojo::Id view_id, |
+ const mojo::String& name, |
+ mojo::Array<uint8_t> value, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void EmbedUrl(const mojo::String& url, |
+ mojo::Id transport_view_id, |
+ mojo::InterfaceRequest<mojo::ServiceProvider> services, |
+ mojo::ServiceProviderPtr exposed_services, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void Embed(mojo::Id transport_view_id, |
+ mojo::ViewManagerClientPtr client, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ void PerformAction(mojo::Id transport_view_id, |
+ const mojo::String& action, |
+ const mojo::Callback<void(bool)>& callback) override; |
+ |
+ // AccessPolicyDelegate: |
+ bool IsRootForAccessPolicy(const ViewId& id) const override; |
+ bool IsViewKnownForAccessPolicy(const ServerView* view) const override; |
+ bool IsViewRootOfAnotherConnectionForAccessPolicy( |
+ const ServerView* view) const override; |
+ |
+ ConnectionManager* connection_manager_; |
+ |
+ // Id of this connection as assigned by ConnectionManager. |
+ const mojo::ConnectionSpecificId id_; |
+ |
+ // URL this connection was created for. |
+ const std::string url_; |
+ |
+ // ID of the connection that created us. If 0 it indicates either we were |
+ // created by the root, or the connection that created us has been destroyed. |
+ mojo::ConnectionSpecificId creator_id_; |
+ |
+ // The URL of the app that embedded the app this connection was created for. |
+ // NOTE: this is empty if the connection was created by way of directly |
+ // supplying the ViewManagerClient. |
+ const std::string creator_url_; |
+ |
+ mojo::ViewManagerClient* client_; |
+ |
+ scoped_ptr<AccessPolicy> access_policy_; |
+ |
+ // The views created by this connection. This connection owns these objects. |
+ ViewMap view_map_; |
+ |
+ // The set of views that has been communicated to the client. |
+ ViewIdSet known_views_; |
+ |
+ // The root of this connection. This is a scoped_ptr to reinforce the |
+ // connection may have no root. A connection has no root if either the root |
+ // is destroyed or Embed() is invoked on the root. |
+ scoped_ptr<ViewId> root_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(ViewManagerServiceImpl); |
+}; |
+ |
+} // namespace view_manager |
+ |
+#endif // SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_ |