Move mus to //services/ui

components/mus/ws/default_access_policy.cc

-// 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 "components/mus/ws/default_access_policy.h"
-
-#include "components/mus/ws/access_policy_delegate.h"
-#include "components/mus/ws/server_window.h"
-
-namespace mus {
-namespace ws {
-
-DefaultAccessPolicy::DefaultAccessPolicy() {}
-
-DefaultAccessPolicy::~DefaultAccessPolicy() {}
-
-void DefaultAccessPolicy::Init(ClientSpecificId client_id,
-                               AccessPolicyDelegate* delegate) {
-  client_id_ = client_id;
-  delegate_ = delegate;
-}
-
-bool DefaultAccessPolicy::CanRemoveWindowFromParent(
-    const ServerWindow* window) const {
-  if (!WasCreatedByThisClient(window))
-    return false;  // Can only unparent windows we created.
-
-  return delegate_->HasRootForAccessPolicy(window->parent()) ||
-         WasCreatedByThisClient(window->parent());
-}
-
-bool DefaultAccessPolicy::CanAddWindow(const ServerWindow* parent,
-                                       const ServerWindow* child) const {
-  return WasCreatedByThisClient(child) &&
-         (delegate_->HasRootForAccessPolicy(parent) ||
-          (WasCreatedByThisClient(parent) &&
-           !delegate_->IsWindowRootOfAnotherTreeForAccessPolicy(parent)));
-}
-
-bool DefaultAccessPolicy::CanAddTransientWindow(
-    const ServerWindow* parent,
-    const ServerWindow* child) const {
-  return (delegate_->HasRootForAccessPolicy(child) ||
-          WasCreatedByThisClient(child)) &&
-         (delegate_->HasRootForAccessPolicy(parent) ||
-          WasCreatedByThisClient(parent));
-}
-
-bool DefaultAccessPolicy::CanRemoveTransientWindowFromParent(
-    const ServerWindow* window) const {
-  return (delegate_->HasRootForAccessPolicy(window) ||
-          WasCreatedByThisClient(window)) &&
-         (delegate_->HasRootForAccessPolicy(window->transient_parent()) ||
-          WasCreatedByThisClient(window->transient_parent()));
-}
-
-bool DefaultAccessPolicy::CanSetModal(const ServerWindow* window) const {
-  return delegate_->HasRootForAccessPolicy(window) ||
-         WasCreatedByThisClient(window);
-}
-
-bool DefaultAccessPolicy::CanReorderWindow(
-    const ServerWindow* window,
-    const ServerWindow* relative_window,
-    mojom::OrderDirection direction) const {
-  return WasCreatedByThisClient(window) &&
-         WasCreatedByThisClient(relative_window);
-}
-
-bool DefaultAccessPolicy::CanDeleteWindow(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window);
-}
-
-bool DefaultAccessPolicy::CanGetWindowTree(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanDescendIntoWindowForWindowTree(
-    const ServerWindow* window) const {
-  return (WasCreatedByThisClient(window) &&
-          !delegate_->IsWindowRootOfAnotherTreeForAccessPolicy(window)) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanEmbed(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window);
-}
-
-bool DefaultAccessPolicy::CanChangeWindowVisibility(
-    const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanChangeWindowOpacity(
-    const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetWindowSurface(
-    const ServerWindow* window,
-    mojom::SurfaceType surface_type) const {
-  if (surface_type == mojom::SurfaceType::UNDERLAY)
-    return WasCreatedByThisClient(window);
-
-  // Once a window embeds another app, the embedder app is no longer able to
-  // call SetWindowSurfaceId() - this ability is transferred to the embedded
-  // app.
-  if (delegate_->IsWindowRootOfAnotherTreeForAccessPolicy(window))
-    return false;
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetWindowBounds(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window);
-}
-
-bool DefaultAccessPolicy::CanSetWindowProperties(
-    const ServerWindow* window) const {
-  return WasCreatedByThisClient(window);
-}
-
-bool DefaultAccessPolicy::CanSetWindowTextInputState(
-    const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetCapture(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetFocus(const ServerWindow* window) const {
-  return !window || WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetClientArea(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetHitTestMask(const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::CanSetCursorProperties(
-    const ServerWindow* window) const {
-  return WasCreatedByThisClient(window) ||
-         delegate_->HasRootForAccessPolicy(window);
-}
-
-bool DefaultAccessPolicy::ShouldNotifyOnHierarchyChange(
-    const ServerWindow* window,
-    const ServerWindow** new_parent,
-    const ServerWindow** old_parent) const {
-  if (!WasCreatedByThisClient(window))
-    return false;
-
-  if (*new_parent && !WasCreatedByThisClient(*new_parent) &&
-      !delegate_->HasRootForAccessPolicy((*new_parent))) {
-    *new_parent = nullptr;
-  }
-
-  if (*old_parent && !WasCreatedByThisClient(*old_parent) &&
-      !delegate_->HasRootForAccessPolicy((*old_parent))) {
-    *old_parent = nullptr;
-  }
-  return true;
-}
-
-const ServerWindow* DefaultAccessPolicy::GetWindowForFocusChange(
-    const ServerWindow* focused) {
-  if (WasCreatedByThisClient(focused) ||
-      delegate_->HasRootForAccessPolicy(focused))
-    return focused;
-  return nullptr;
-}
-
-bool DefaultAccessPolicy::CanSetWindowManager() const {
-  return false;
-}
-
-bool DefaultAccessPolicy::WasCreatedByThisClient(
-    const ServerWindow* window) const {
-  return window->id().client_id == client_id_;
-}
-
-bool DefaultAccessPolicy::IsValidIdForNewWindow(
-    const ClientWindowId& id) const {
-  // Clients using DefaultAccessPolicy only see windows they have created (for
-  // the embed point they choose the id), so it's ok for clients to use whatever
-  // id they want.
-  return true;
-}
-
-}  // namespace ws
-}  // namespace mus