Move view_manager service implementation to //services
There's no reason for this to live in //mojo/services, this whole repo
is for mojo.
R=sky@chromium.org
Review URL: https://codereview.chromium.org/774473003
diff --git a/services/view_manager/view_manager_service_impl.h b/services/view_manager/view_manager_service_impl.h
new file mode 100644
index 0000000..8ff0cb9
--- /dev/null
+++ b/services/view_manager/view_manager_service_impl.h
@@ -0,0 +1,241 @@
+// 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/public/interfaces/surfaces/surface_id.mojom.h"
+#include "mojo/services/public/interfaces/view_manager/view_manager.mojom.h"
+#include "services/view_manager/access_policy_delegate.h"
+#include "services/view_manager/ids.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace mojo {
+namespace service {
+
+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 ViewManagerService,
+ public AccessPolicyDelegate {
+ public:
+ using ViewIdSet = base::hash_set<Id>;
+
+ ViewManagerServiceImpl(ConnectionManager* connection_manager,
+ ConnectionSpecificId creator_id,
+ const std::string& creator_url,
+ const std::string& url,
+ const ViewId& root_id);
+ ~ViewManagerServiceImpl() override;
+
+ // |service_provider| is the ServiceProvider to pass to the client via
+ // OnEmbed().
+ void Init(ViewManagerClient* client,
+ InterfaceRequest<ServiceProvider> service_provider);
+
+ ConnectionSpecificId id() const { return id_; }
+ ConnectionSpecificId creator_id() const { return creator_id_; }
+ const std::string& url() const { return url_; }
+
+ 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.
+ 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 Embed(const std::string& url,
+ const ViewId& view_id,
+ InterfaceRequest<ServiceProvider> service_provider);
+
+ // 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 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,
+ 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<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,
+ 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)).
+ Array<ViewDataPtr> ViewsToViewDatas(
+ const std::vector<const ServerView*>& views);
+ 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();
+
+ // ViewManagerService:
+ void CreateView(Id transport_view_id,
+ const Callback<void(ErrorCode)>& callback) override;
+ void DeleteView(Id transport_view_id,
+ const Callback<void(bool)>& callback) override;
+ void AddView(Id parent_id,
+ Id child_id,
+ const Callback<void(bool)>& callback) override;
+ void RemoveViewFromParent(Id view_id,
+ const Callback<void(bool)>& callback) override;
+ void ReorderView(Id view_id,
+ Id relative_view_id,
+ OrderDirection direction,
+ const Callback<void(bool)>& callback) override;
+ void GetViewTree(Id view_id,
+ const Callback<void(Array<ViewDataPtr>)>& callback) override;
+ void SetViewSurfaceId(Id view_id,
+ SurfaceIdPtr surface_id,
+ const Callback<void(bool)>& callback) override;
+ void SetViewBounds(Id view_id,
+ RectPtr bounds,
+ const Callback<void(bool)>& callback) override;
+ void SetViewVisibility(Id view_id,
+ bool visible,
+ const Callback<void(bool)>& callback) override;
+ void SetViewProperty(Id view_id,
+ const String& name,
+ Array<uint8_t> value,
+ const Callback<void(bool)>& callback) override;
+ void Embed(const String& url,
+ Id view_id,
+ InterfaceRequest<ServiceProvider> service_provider,
+ const 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 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.
+ ConnectionSpecificId creator_id_;
+
+ // The URL of the app that embedded the app this connection was created for.
+ const std::string creator_url_;
+
+ 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 service
+} // namespace mojo
+
+#endif // SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_
