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mojo/services/view_manager/window_manager_access_policy.cc

Index: mojo/services/view_manager/window_manager_access_policy.cc
diff --git a/mojo/services/view_manager/window_manager_access_policy.cc b/mojo/services/view_manager/window_manager_access_policy.cc
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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.
+
+#include "mojo/services/view_manager/window_manager_access_policy.h"
+
+#include "mojo/services/view_manager/access_policy_delegate.h"
+#include "mojo/services/view_manager/server_view.h"
+
+namespace view_manager {
+
+// TODO(sky): document why this differs from default for each case. Maybe want
+// to subclass DefaultAccessPolicy.
+
+WindowManagerAccessPolicy::WindowManagerAccessPolicy(
+    mojo::ConnectionSpecificId connection_id,
+    AccessPolicyDelegate* delegate)
+    : connection_id_(connection_id), delegate_(delegate) {
+}
+
+WindowManagerAccessPolicy::~WindowManagerAccessPolicy() {
+}
+
+bool WindowManagerAccessPolicy::CanRemoveViewFromParent(
+    const ServerView* view) const {
+  return true;
+}
+
+bool WindowManagerAccessPolicy::CanAddView(const ServerView* parent,
+                                           const ServerView* child) const {
+  return true;
+}
+
+bool WindowManagerAccessPolicy::CanReorderView(
+    const ServerView* view,
+    const ServerView* relative_view,
+    mojo::OrderDirection direction) const {
+  return true;
+}
+
+bool WindowManagerAccessPolicy::CanDeleteView(const ServerView* view) const {
+  return view->id().connection_id == connection_id_;
+}
+
+bool WindowManagerAccessPolicy::CanGetViewTree(const ServerView* view) const {
+  return view->id() != ClonedViewId();
+}
+
+bool WindowManagerAccessPolicy::CanDescendIntoViewForViewTree(
+    const ServerView* view) const {
+  return view->id() != ClonedViewId();
+}
+
+bool WindowManagerAccessPolicy::CanEmbed(const ServerView* view) const {
+  return view->id().connection_id == connection_id_;
+}
+
+bool WindowManagerAccessPolicy::CanChangeViewVisibility(
+    const ServerView* view) const {
+  return view->id().connection_id == connection_id_;
+}
+
+bool WindowManagerAccessPolicy::CanSetViewSurfaceId(
+    const ServerView* view) const {
+  if (delegate_->IsViewRootOfAnotherConnectionForAccessPolicy(view))
+    return false;
+  return view->id().connection_id == connection_id_ ||
+         (delegate_->IsRootForAccessPolicy(view->id()));
+}
+
+bool WindowManagerAccessPolicy::CanSetViewBounds(const ServerView* view) const {
+  return view->id().connection_id == connection_id_;
+}
+
+bool WindowManagerAccessPolicy::CanSetViewProperties(
+    const ServerView* view) const {
+  return view->id().connection_id == connection_id_;
+}
+
+bool WindowManagerAccessPolicy::ShouldNotifyOnHierarchyChange(
+    const ServerView* view,
+    const ServerView** new_parent,
+    const ServerView** old_parent) const {
+  if (view->id() == ClonedViewId())
+    return false;
+
+  // Notify if we've already told the window manager about the view, or if we've
+  // already told the window manager about the parent. The later handles the
+  // case of a view that wasn't parented to the root getting added to the root.
+  return IsViewKnown(view) || (*new_parent && IsViewKnown(*new_parent));
+}
+
+bool WindowManagerAccessPolicy::IsViewKnown(const ServerView* view) const {
+  return delegate_->IsViewKnownForAccessPolicy(view);
+}
+
+}  // namespace view_manager