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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "mojo/services/view_manager/default_access_policy.h" | 5 #include "mojo/services/view_manager/default_access_policy.h" |
| 6 | 6 |
| 7 #include "mojo/services/view_manager/access_policy_delegate.h" | 7 #include "mojo/services/view_manager/access_policy_delegate.h" |
| 8 #include "mojo/services/view_manager/node.h" | 8 #include "mojo/services/view_manager/server_view.h" |
| 9 | 9 |
| 10 namespace mojo { | 10 namespace mojo { |
| 11 namespace service { | 11 namespace service { |
| 12 | 12 |
| 13 DefaultAccessPolicy::DefaultAccessPolicy(ConnectionSpecificId connection_id, | 13 DefaultAccessPolicy::DefaultAccessPolicy(ConnectionSpecificId connection_id, |
| 14 AccessPolicyDelegate* delegate) | 14 AccessPolicyDelegate* delegate) |
| 15 : connection_id_(connection_id), | 15 : connection_id_(connection_id), |
| 16 delegate_(delegate) { | 16 delegate_(delegate) { |
| 17 } | 17 } |
| 18 | 18 |
| 19 DefaultAccessPolicy::~DefaultAccessPolicy() { | 19 DefaultAccessPolicy::~DefaultAccessPolicy() { |
| 20 } | 20 } |
| 21 | 21 |
| 22 bool DefaultAccessPolicy::CanRemoveNodeFromParent(const Node* node) const { | 22 bool DefaultAccessPolicy::CanRemoveViewFromParent( |
| 23 if (!WasCreatedByThisConnection(node)) | 23 const ServerView* view) const { |
| 24 return false; // Can only unparent nodes we created. | 24 if (!WasCreatedByThisConnection(view)) |
| 25 return false; // Can only unparent views we created. |
| 25 | 26 |
| 26 return IsNodeInRoots(node->parent()) || | 27 return IsViewInRoots(view->parent()) || |
| 27 WasCreatedByThisConnection(node->parent()); | 28 WasCreatedByThisConnection(view->parent()); |
| 28 } | 29 } |
| 29 | 30 |
| 30 bool DefaultAccessPolicy::CanAddNode(const Node* parent, | 31 bool DefaultAccessPolicy::CanAddView(const ServerView* parent, |
| 31 const Node* child) const { | 32 const ServerView* child) const { |
| 32 return WasCreatedByThisConnection(child) && | 33 return WasCreatedByThisConnection(child) && |
| 33 (IsNodeInRoots(parent) || | 34 (IsViewInRoots(parent) || |
| 34 (WasCreatedByThisConnection(parent) && | 35 (WasCreatedByThisConnection(parent) && |
| 35 !delegate_->IsNodeRootOfAnotherConnectionForAccessPolicy(parent))); | 36 !delegate_->IsViewRootOfAnotherConnectionForAccessPolicy(parent))); |
| 36 } | 37 } |
| 37 | 38 |
| 38 bool DefaultAccessPolicy::CanReorderNode(const Node* node, | 39 bool DefaultAccessPolicy::CanReorderView(const ServerView* view, |
| 39 const Node* relative_node, | 40 const ServerView* relative_view, |
| 40 OrderDirection direction) const { | 41 OrderDirection direction) const { |
| 41 return WasCreatedByThisConnection(node) && | 42 return WasCreatedByThisConnection(view) && |
| 42 WasCreatedByThisConnection(relative_node); | 43 WasCreatedByThisConnection(relative_view); |
| 43 } | 44 } |
| 44 | 45 |
| 45 bool DefaultAccessPolicy::CanDeleteNode(const Node* node) const { | 46 bool DefaultAccessPolicy::CanDeleteView(const ServerView* view) const { |
| 46 return WasCreatedByThisConnection(node); | 47 return WasCreatedByThisConnection(view); |
| 47 } | 48 } |
| 48 | 49 |
| 49 bool DefaultAccessPolicy::CanGetNodeTree(const Node* node) const { | 50 bool DefaultAccessPolicy::CanGetViewTree(const ServerView* view) const { |
| 50 return WasCreatedByThisConnection(node) || IsNodeInRoots(node); | 51 return WasCreatedByThisConnection(view) || IsViewInRoots(view); |
| 51 } | 52 } |
| 52 | 53 |
| 53 bool DefaultAccessPolicy::CanDescendIntoNodeForNodeTree( | 54 bool DefaultAccessPolicy::CanDescendIntoViewForViewTree( |
| 54 const Node* node) const { | 55 const ServerView* view) const { |
| 55 return WasCreatedByThisConnection(node) && | 56 return WasCreatedByThisConnection(view) && |
| 56 !delegate_->IsNodeRootOfAnotherConnectionForAccessPolicy(node); | 57 !delegate_->IsViewRootOfAnotherConnectionForAccessPolicy(view); |
| 57 } | 58 } |
| 58 | 59 |
| 59 bool DefaultAccessPolicy::CanEmbed(const Node* node) const { | 60 bool DefaultAccessPolicy::CanEmbed(const ServerView* view) const { |
| 60 return WasCreatedByThisConnection(node); | 61 return WasCreatedByThisConnection(view); |
| 61 } | 62 } |
| 62 | 63 |
| 63 bool DefaultAccessPolicy::CanChangeNodeVisibility(const Node* node) const { | 64 bool DefaultAccessPolicy::CanChangeViewVisibility( |
| 64 return WasCreatedByThisConnection(node) || IsNodeInRoots(node); | 65 const ServerView* view) const { |
| 66 return WasCreatedByThisConnection(view) || IsViewInRoots(view); |
| 65 } | 67 } |
| 66 | 68 |
| 67 bool DefaultAccessPolicy::CanSetNodeContents(const Node* node) const { | 69 bool DefaultAccessPolicy::CanSetViewContents(const ServerView* view) const { |
| 68 // Once a node embeds another app, the embedder app is no longer able to | 70 // Once a view embeds another app, the embedder app is no longer able to |
| 69 // call SetNodeContents() - this ability is transferred to the embedded app. | 71 // call SetViewContents() - this ability is transferred to the embedded app. |
| 70 if (delegate_->IsNodeRootOfAnotherConnectionForAccessPolicy(node)) | 72 if (delegate_->IsViewRootOfAnotherConnectionForAccessPolicy(view)) |
| 71 return false; | 73 return false; |
| 72 return WasCreatedByThisConnection(node) || IsNodeInRoots(node); | 74 return WasCreatedByThisConnection(view) || IsViewInRoots(view); |
| 73 } | 75 } |
| 74 | 76 |
| 75 bool DefaultAccessPolicy::CanSetNodeBounds(const Node* node) const { | 77 bool DefaultAccessPolicy::CanSetViewBounds(const ServerView* view) const { |
| 76 return WasCreatedByThisConnection(node); | 78 return WasCreatedByThisConnection(view); |
| 77 } | 79 } |
| 78 | 80 |
| 79 bool DefaultAccessPolicy::ShouldNotifyOnHierarchyChange( | 81 bool DefaultAccessPolicy::ShouldNotifyOnHierarchyChange( |
| 80 const Node* node, | 82 const ServerView* view, |
| 81 const Node** new_parent, | 83 const ServerView** new_parent, |
| 82 const Node** old_parent) const { | 84 const ServerView** old_parent) const { |
| 83 if (!WasCreatedByThisConnection(node)) | 85 if (!WasCreatedByThisConnection(view)) |
| 84 return false; | 86 return false; |
| 85 | 87 |
| 86 if (*new_parent && !WasCreatedByThisConnection(*new_parent) && | 88 if (*new_parent && !WasCreatedByThisConnection(*new_parent) && |
| 87 !IsNodeInRoots(*new_parent)) { | 89 !IsViewInRoots(*new_parent)) { |
| 88 *new_parent = NULL; | 90 *new_parent = NULL; |
| 89 } | 91 } |
| 90 | 92 |
| 91 if (*old_parent && !WasCreatedByThisConnection(*old_parent) && | 93 if (*old_parent && !WasCreatedByThisConnection(*old_parent) && |
| 92 !IsNodeInRoots(*old_parent)) { | 94 !IsViewInRoots(*old_parent)) { |
| 93 *old_parent = NULL; | 95 *old_parent = NULL; |
| 94 } | 96 } |
| 95 return true; | 97 return true; |
| 96 } | 98 } |
| 97 | 99 |
| 98 bool DefaultAccessPolicy::ShouldSendViewDeleted(const ViewId& view_id) const { | 100 bool DefaultAccessPolicy::IsViewInRoots(const ServerView* view) const { |
| 99 return view_id.connection_id == connection_id_; | |
| 100 } | |
| 101 | |
| 102 bool DefaultAccessPolicy::IsNodeInRoots(const Node* node) const { | |
| 103 return delegate_->GetRootsForAccessPolicy().count( | 101 return delegate_->GetRootsForAccessPolicy().count( |
| 104 NodeIdToTransportId(node->id())) > 0; | 102 ViewIdToTransportId(view->id())) > 0; |
| 105 } | 103 } |
| 106 | 104 |
| 107 } // namespace service | 105 } // namespace service |
| 108 } // namespace mojo | 106 } // namespace mojo |
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