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 3// found in the LICENSE file. 4 5#include "mojo/services/view_manager/window_manager_access_policy.h" 6 7#include "mojo/services/view_manager/access_policy_delegate.h" 8#include "mojo/services/view_manager/server_view.h" 9 10namespace mojo { 11namespace service { 12 13// TODO(sky): document why this differs from default for each case. Maybe want 14// to subclass DefaultAccessPolicy. 15 16WindowManagerAccessPolicy::WindowManagerAccessPolicy( 17 ConnectionSpecificId connection_id, 18 AccessPolicyDelegate* delegate) 19 : connection_id_(connection_id), 20 delegate_(delegate) { 21} 22 23WindowManagerAccessPolicy::~WindowManagerAccessPolicy() { 24} 25 26bool WindowManagerAccessPolicy::CanRemoveViewFromParent( 27 const ServerView* view) const { 28 return true; 29} 30 31bool WindowManagerAccessPolicy::CanAddView(const ServerView* parent, 32 const ServerView* child) const { 33 return true; 34} 35 36bool WindowManagerAccessPolicy::CanReorderView(const ServerView* view, 37 const ServerView* relative_view, 38 OrderDirection direction) const { 39 return true; 40} 41 42bool WindowManagerAccessPolicy::CanDeleteView(const ServerView* view) const { 43 return view->id().connection_id == connection_id_; 44} 45 46bool WindowManagerAccessPolicy::CanGetViewTree(const ServerView* view) const { 47 return true; 48} 49 50bool WindowManagerAccessPolicy::CanDescendIntoViewForViewTree( 51 const ServerView* view) const { 52 return true; 53} 54 55bool WindowManagerAccessPolicy::CanEmbed(const ServerView* view) const { 56 return view->id().connection_id == connection_id_; 57} 58 59bool WindowManagerAccessPolicy::CanChangeViewVisibility( 60 const ServerView* view) const { 61 return view->id().connection_id == connection_id_; 62} 63 64bool WindowManagerAccessPolicy::CanSetViewSurfaceId( 65 const ServerView* view) const { 66 if (delegate_->IsViewRootOfAnotherConnectionForAccessPolicy(view)) 67 return false; 68 return view->id().connection_id == connection_id_ || 69 (delegate_->GetRootsForAccessPolicy().count( 70 ViewIdToTransportId(view->id())) > 0); 71} 72 73bool WindowManagerAccessPolicy::CanSetViewBounds(const ServerView* view) const { 74 return view->id().connection_id == connection_id_; 75} 76 77bool WindowManagerAccessPolicy::ShouldNotifyOnHierarchyChange( 78 const ServerView* view, 79 const ServerView** new_parent, 80 const ServerView** old_parent) const { 81 // Notify if we've already told the window manager about the view, or if we've 82 // already told the window manager about the parent. The later handles the 83 // case of a view that wasn't parented to the root getting added to the root. 84 return IsViewKnown(view) || (*new_parent && IsViewKnown(*new_parent)); 85} 86 87bool WindowManagerAccessPolicy::IsViewKnown(const ServerView* view) const { 88 return delegate_->IsViewKnownForAccessPolicy(view); 89} 90 91} // namespace service 92} // namespace mojo 93